INDIA'S 3rd GENARATION TECHNOLOGY

2009-11-28T01:32:00.001-08:00

Genes Discovered That Allow Gum Disease Bacterium To Invade Arteries

2009-11-27T21:48:00.000-08:00

Researchers have identified the genes in gum-disease bacteria that allow them to invade and infect human arterial cells, offering one possible explanation for a perceived connection between gum disease and heart disease. Scientists from the University of Florida, Gainesville, present their findings today at the 106th General Meeting of the American Society for Microbiology in Orlando, Florida.
"Aside from lifestyle and genetic factors, there is increasing evidence that bacterial infections may play a role in heart disease. Porphyromas gingivalis, an important bacterium that causes gum disease, is also linked to cardiovascular disease. In this study we have identified and studied four genes of P. gingivalis that allow it to infect and survive inside artery cells," says Paulo Rodrigues, a researcher on the study.
Rodrigues and his colleagues had previously discovered that P. gingivalis had the ability to invade and survive inside human artery cells. In this study they examined the role four different genes play in this ability. They created four strains of the bacterium, each with a different gene mutated to disable it, and tested their ability to invade and survived in artery cells compared to a fully functioning strain of P. gingivalis.
"Our study showed that all four mutated strains were defective in invasion of the artery cells and that their ability to survive inside of the cells was diminished. These results show that these four genes play a role in the invasion and survival of P. gingivalis inside artery cells," says Rodrigues. "The knowledge of how this pathogenic bacterium interacts with artery cells is important and may lead to the development of therapeutics and diagnostic tools for the detection and possibly prevention of heart diseases caused by this association

Science News

2009-11-27T21:21:00.000-08:00

Knockouts in Human Cells Point to Pathogenic Targets

researchers have developed a new type of genetic screen for human cells to pinpoint specific genes and proteins used by pathogens, according to their paper in Science.
In most human cell cultures genes are present in two copies: one inherited from the father and one from the mother. Gene inactivation by mutation is therefore inefficient because when one copy is inactivated, the second copy usually remains active and takes over.
In yeast, researchers have it easier: they use yeast cells in which all genes are present in only one copy (haploid yeast). Now Carette and co-workers have used a similar approach and used a human cell line, in which nearly all human chromosomes are present in a single copy.
In this rare cell line, Carette and co-workers generated mutations in almost all human genes and used this collection to screen for the host genes used by pathogens. By exposing those cells to influenza or to various bacterial toxins, the authors isolated mutants that were resistant to them. Carette then identified the mutated genes in the surviving cells, which code for a transporter molecule and an enzyme that the influenza virus hijacks to take over cells.
Working with Carla Guimaraes from Whitehead Member Hidde Ploegh's lab, Carette subjected knockout cells to several bacterial toxins to identify resistant cells and therefore the genes responsible.
The experiments identified a previously uncharacterized gene as essential for intoxication by diphtheria toxin and exotoxin A toxicity, and a cell surface protein needed for cytolethal distending toxin toxicity.
"We were surprised by the clarity of the results," says Jan Carette, a postdoctoral researcher in the Brummelkamp lab and first author on the Science article. "They allowed us to identify new genes and proteins involved in infectious processes that have been studied for decades, like diphtheria and the flu. In addition we found the first human genes essential for host-pathogen interactions where few details are known, as is the case for cytolethal distending toxin secreted by certain strains of E. coli. This could be important for rapidly responding to newly emerging pathogens or to study pathogen biology that has been difficult to study experimentally."
Brummelkamp sees the work as only the beginning.
"Having knockout cells for almost all human genes in our freezer opens up a wealth of biological questions that we can look at," he says. "In addition to many aspects of cell biology that can be studied, knockout screens could also be used to unravel molecular networks that are exploited by a battery of different viruses and bacteria."
This research was funded by Fundação para a Ciência ea Tecnologia (FCT) Portugal and the Kimmel Foundation.
Thijn Brummelkamp is a Fellow at Whitehead Institute for Biomedical Research, where his laboratory is located and all his research is conducted.

World Time Map & Clock - Check Current Local Time Around the World

2009-11-27T20:56:00.000-08:00

World Time Map & Clock - Check Current Local Time Around the World

cardiology

2009-09-14T22:30:00.000-07:00

PLEASE VISIT FOR MORE INFORMATIO http://www.worldwidehealth.com/health-article-Heart-diseases-Affecting-Coronary-Arteries-and-Coronary-Veins.html

2009-09-10T23:55:00.000-07:00

One Vaccine Shot Seen as Protective for Swine Flu
Defying the expectations of experts, clinical trials are showing that the new H1N1 swine flu vaccine protects with only one dose instead of two, so the vaccine supplies now being made will go twice as far as had been predicted.
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Times Topics: Swine Flu (AH1N1 Virus)
That means it should be possible to vaccinate — well before the flu’s expected midwinter peak — all the 159 million people that the Centers for Disease Control and Prevention estimate are in the high-risk groups: pregnant women, people under 24 years old or caring for infants, people with high-risk medical conditions and health-care workers.
Barring production delays, the government hopes to have in hand 195 million doses by year’s end.
The first convincing trial results from a single 15-microgram dose in adults were published online Thursday afternoon by The New England Journal of Medicine. That trial was done in Australia, but the vaccine maker, CSL Limited, is under contract to supply millions of doses to the United States government, and the president of the company’s American subsidiary said he expected its trials here to have similar results.
The H1N1 swine flu pandemic has now reached 168 countries. It arrived in the United States late in the spring and infected more than one million people. It did not fade out as seasonal flu does, but persisted, especially in summer camps. Nearly 600 people had died by the end of August, according to the disease control agency.
Cases are now surging again, especially in the Southeast where many schools and universities reopen earlier than in the rest of the country.
Dr. Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases, said trials now under way under the sponsorship of the National Institutes of Health were showing that adults who got only a single dose were protected within 8 to 10 days, which he said “corroborates and confirms the exciting data” reported in the Australian study.
Robust protection produced so quickly in high-risk groups means lives will presumably be saved, Dr. Fauci said.
Costs will also be lowered by having a more efficient vaccine, he said, “but I can’t give you a dollar figure.”
Also, more vaccine could be available to poor countries that were largely left out of last spring’s global scramble to sign vaccine makers to contracts. Experts have worried that rich countries would be protected this winter while poor ones — where people are more likely to die because of drug shortages and substandard hospital care — would bear the brunt of the pandemic.
“This is definitely a big deal,” said Dr. John J. Treanor, a vaccine expert at the University of Rochester. “People had been planning for a scenario that would require two doses.”
“This will take the edge off the nail-biting,” Dr. Treanor added.
The results released Thursday were based on the first three weeks of a clinical trial. Healthy adults got one 15-microgram shot, and their blood was tested 21 days later. By that time, 97 percent of the 120 adults had enough antibodies to be considered protected. Another group that got 30-microgram doses had no greater protection.
There were no deaths or dangerous side-effects. Almost half of the participants reported sore arms or headaches, but that is normal with flu shots.
The American trials began about two weeks later, said Paul R. Perreault, president of CSL Biotherapies, the company’s American subsidiary. “My experience with this tells me they shouldn’t be any different,” Mr. Perreault said.
Dr. Fauci said he would discuss the details of the N.I.H. trials at a news conference on Friday afternoon.
Seasonal flu shots are available now, and Federal officials are urging Americans to get one. Little or no swine flu vaccine will be available before late October. There have been no clinical trials of giving both shots at the same time, and Federal health officials have issued no recommendations on that.
Experts had predicted for months that, because the H1N1 swine flu has never been seen before by human immune systems, it would take two doses, administered weeks apart, to get a “take” — antibody levels as high as those produced by regular flu shots.
The authors of the Australian study said the robust response implied that there was some previously unsuspected crossover protection from having had previous strains of H1N1 seasonal flus or from the H1N1 components of seasonal flu shots.
In mid-August, a Chinese vaccine maker, Sinovac Biotech, also reported that one shot of its vaccine gave protection against the flu. But because it released no data about the size of the dose or the composition of its vaccine, it was impossible for American experts to evaluate the claim.
Also, none of the 10 Chinese companies producing swine flu vaccine have licenses to sell in the United States, as CSL does, so their vaccines would have virtually no impact on the spread of the disease here.
Although the Australian trial was in healthy adults only, Dr. Treanor said he believed one dose of the new vaccine would prove effective in everyone from age 9 and up.
Pediatricians usually give two shots to children ages 6 months to 9 years who have never had a flu shot; the first primes the immune system and subsequent shots act as boosters that create new surges of antibodies, though slightly varied each year as strains mutate.
Infants under 6 months old are not normally given flu shots. Pregnant women are, and babies can inherit some temporary immunity from their mothers

HOW TO PREVENT FROM SWINE FLUE

2009-09-10T23:36:00.000-07:00

Already, there are reports coming from schools across Florida that kids are being diagnosed with swine flu (also known as the H1N1 virus). And in Georgia, Alaska and Puerto Rico, health officials say swine flu already is widespread.The good news is this: Although swine flu is highly contagious, the World Health Organization says it generally causes "very mild illness" in healthy people.But there are ways to prevent the flu from spreading, mainly by washing your hands.If doctors sound like your mom, who keeps bugging you to wash your hands before you eat, there's a reason."Whenever you're contaminated by touching things that other people have touched — desks or tabletops in the lunchroom — you really should wash your hands before eating or drinking or touching your face," said Dr. Philip Tierno, director of clinical microbiology and immunology at New York University's Langone Medical Center. Eighty percent of all infections are spread when you touch germs and then touch your mouth, eyes and nose.And the flu bug is a survivor. The swine-flu virus can survive on a desk or a doorknob for two to eight hours after it lands there, according to the U.S. Centers for Disease Control and Prevention. That's why hand-washing — and disinfecting lunchroom tables, doorknobs and gym equipment — is so important.However, many kids are bound to get swine flu this year. So here's some advice from the CDC: If you think you're sick, stay home. The symptoms of swine flu include fever, cough, sore throat, runny or stuffy nose, body aches, headache, chills and fatigue. A significant number of those already afflicted also have reported diarrhea and vomiting.Wash handsWash your hands frequently with soap and water. But not so fast, kiddo! You're supposed to wash for 20 seconds — so sing the "Happy Birthday" song to yourself twice to make sure you've washed long enough. And don't just wash your palms. Rub soap on the backs of your hands, between your fingers and underneath your fingernails. Antibacterial soap or plain soap? There's no need to use antibacterial soap — the water washes away the flu virus.Hand Sanitizer 101If soap and water are not available, use hand-sanitizing gel. Pick a brand that contains at least 62percent alcohol, said Tierno, the microbiologist. Most important: Wash hands or use hand sanitizer right before you eat lunch — because when you pick up your sandwich, you could spread germs from your hands to your food and then to your mouth.Coughing and sneezing etiquetteCough or sneeze into a tissue — and then wash or sanitize your hands. If you don't have a tissue handy, sneeze or cough into the crook of your arm or your shoulder — so your germs don't spread through the air. Don't cough or sneeze into your hands! If you do, wash immediately.Don't touch!Avoid touching your eyes, nose and mouth. That's the fastest way to spread germs into your body.Water-fountain phobia?The danger from the water fountain isn't from kids putting their mouths on the fountain — because the stream of water washes away germs. The most contaminated part of the fountain is the handle or button you push to turn it on, say experts. But to be safe during the swine- flu pandemic, it's probably best to send kids to school with their own water bottles. What about handrails, doorknobs or keyboards? It's not practical to ask kids not to touch any surfaces at school. Instead, experts recommend that kids carry their own container of hand sanitizer and use it frequently

The meaning of Cycology

2009-07-15T07:37:00.000-07:00

The meaning of Cycology is 'Motor Bike repairer'

However if you meant to say the meaning of Paychology then it means:
The Definition of "Psychology"
by Gene Zimmer

The word "psychology" is the combination of two terms - study (ology) and soul (psyche), or mind. The derivation of the word from Latin gives it this clear and obvious meaning:

The study of the soul or mind.

This meaning has been altered over the years until today, this is not what the word means at all. The subject of psychology, as studied in colleges and universities, currently has very little to do with the mind, and absolutely nothing to do with the soul or spirit.

It is important to understand that words and ideas are supposed to refer to something. "The large tree in the front yard" refers to an actual thing that can be seen, touched and experienced. "The man walking his little dog last night at sunset" refers to an actual event that can be seen, observed and experienced. The realm of mind is an actual realm that can be experienced, and at one time there were words that accurately referred to this realm.

Let's see what a few dictionaries have to say and how a word could alter and lose its true and actual meaning.

"Psyche" is defined as:

1. The spirit or soul.
2. The human mind.
3. In psychoanalysis, the mind functioning as the centre of thought, emotion, and behaviour.

And defining "soul", we have:

1. the spiritual or immortal elements in a person.
2. a person's mental or moral or emotional nature.

However another meaning which is one that we attributed when I was studying Psychology at University was described as:

academic and applied discipline involving the analytic and scientific study of mental processes and behaviour. Psychologists study such phenomena as perception, cognition, emotion, personality, behaviour, and interpersonal relationships. Psychology also refers to the application of such knowledge to various spheres of human activity including issues related to daily life—e.g. family, education, and work—and the treatment of mental health problems. Psychology attempts to understand the role these functions play in social behaviour and in social dynamics, while incorporating the underlying physiological and neurological processes into its conceptions of mental functioning. Psychology includes many sub-fields of study and application concerned with such areas as human development, sports, health, industry, media, law, and transpersonal psychology.

MORE DETAILS ABOUT SWINE FLU DISEASE

2009-07-12T22:04:00.000-07:00

What is the swine flu?
What are the symptoms of swine flu?
What are the CDC recommendations for infectious swine flu?
How can the swine flu infection be controlled?
What is the treatment for swine flu?
Will a face mask protect me from getting the swine flu, and are there differences in face masks?
Read Dr. Charles Davis' H1N1 Influenza Virus (Swine Flu) article (published May 1, 2009)
Why is swine flu now infecting humans?
How is swine flu (H1N1) diagnosed?
What is the history of swine flu?
How can swine (H1N1) flu be prevented?
Is swine flu (H1N1) a cause of an epidemic or pandemic in 2009?
What is the prognosis (outlook) for patients that get swine flu (H1N1)?
Where can I find more information about swine flu?
Timeline update H1N1 2009 swine flu?
Swine Flu (H1N1 Influenza Virus) At A Glance?

DANGEROUS Mesothelioma

2009-06-30T03:10:00.000-07:00

INTRODUCTION: Mesothelioma is a form of cancer that is almost always caused by previous exposure to asbestos. Most people who develop it have worked on jobs where they inhaled asbestos particles, or they have been exposed to asbestos dust and fibre in other ways, such as by washing the clothes of a family member who worked with asbestos.

It is a serious disease with an average survival time of only 1 to 2 years after diagnosis. Unlike lung cancer, there is no association between mesothelioma and smoking. The disease occurs more often in men than in women and risk increases with age, but this disease can appear in either men or women at any age. It is also known to occur in those who are genetically pre-disposed to it.

SYMPTOMS: Mesothelioma may not appear until 20 to 50 years after exposure to asbestos. Diagnosing it is often difficult, because the symptoms are similar to those of a number of other conditions. The symptoms include shortness of breath due to pleural effusion (fluid between the lungs and the chest wall) or chest wall pain, and more general symptoms such as weight loss.

Signs of mesothelioma may also include abdominal pain, ascites, or an unusual buildup of fluid in the abdomenal mass in the abdomen, bowel function problems. Other signs of peritoneal mesothelioma may include bowel obstruction, blood clotting abnormalities, anemia, and high body temperature.

If the disease has spread beyond the mesothelium to other areas of the body, signs may include pain, having trouble swallowing, or swelling of the neck or face.

In severe cases of the disease, the following signs may be present: blood clots in the veins, which may lead to thrombophlebitis, disseminated intravascular coagulation, a situation causing severe bleeding in many body organs, jaundice, or yellowing of the eyes and skin, low blood sugar level, pleural effusion, pulmonary emboli, or blood clots in the arteries of the lungs, severe ascites. These symptoms may be brought about by mesothelioma or by other, less serious diseases.

TREATMENT: There are several types of treatment options available: Radiation, Surgery, and chemotherapy including recently approved medications. Despite treatment with chemotherapy, radiation therapy or sometimes surgery, the disease carries a poor prognosis. For patients with localized disease, and who can tolerate a radical surgery, radiation is often given post-operatively as a consolidative treatment.

Although the cancer is usually resistant to curative treatment with radiotherapy alone, palliative treatment regimens are sometimes used to relieve symptoms caused by tumor growth, such as obstruction of a major blood vessel. In February 2004, the U.S. Food and Drug Administration approved pemetrexed (brand name Alimta) for treating malignant pleural mesothelioma.

CONCLUSION: Mesothelioma is a type of cancer that is nearly always caused by previous exposure to asbestos. Cancer that affects the pleura can cause these signs and symptoms: A painful chest wall, pleural effusion, or fluid surrounding the lungs, shortness of breath, fatigue or anemia, wheezing, hoarseness or cough, blood in the sputum (fluid) coughed up (hemoptysis).

It is described as localized if the disease is found only on the membrane surface where it began. Screening tests might diagnose it earlier than conventional methods thus raising the survival prospects for patients.

The processes leading to the development of peritoneal mesothelioma remain unresolved, although it has been proposed that asbestos fibres from the lung are transported to the abdomen and associated organs via the lymphatic system.

It has been suggested that in humans, transport of fibres to the pleura is critical to the pathogenesis of the disease.

Experimental evidence indicates that asbestos acts as a complete carcinogen with the development of mesothelioma happening in sequential stages of initiation and promotion.

Although reported incidence rates have grown in the past 20 yrs, the disease is still a very rare cancer. Incidence of malignant mesothelioma currently ranges from about 7 to 40 cases per 1,000,000 in industrialized Western nations, depending on the amount of asbestos exposure of the populations during the past few decades.

Between 1973 and 1984, there has been a threefold increase in the diagnosis of pleural mesothelioma in Caucasian males. From 1980 to the late 1990s, the death rate from mesothelioma in the USA increased from 2,000 per year to 3,000, with men four times more likely to acquire it than women. These rates may not be accurate, since it is possible that many cases are mis-diagnosed as adenocarcinoma of the lung, which is difficult to differentiate from mesothelioma.

Working with asbestos is the most important risk factor for mesothelioma. However, the disease has been reported in some people without any known asbestos exposure. Besides mesothelioma, exposure to asbestos increases the risk of lung cancer, asbestosis (a noncancerous, chronic lung ailment), and others, such as cancer of the larynx and kidney.

Smoking modern cigarettes does not appear to increase the risk of developing the disease. The Kent brand of cigarettes used asbestos in its filters for the first few years of production in the 1950s and some cases of mesothelioma have resulted.

About the Author:
Concerning The Author: Richard H. Ealom is the Author of this article and the writer of "Free Articles On Diseases: How To Prevent and Even Cure Them". Need more Facts Please visit us at our websites@Diabetes & Cancer Secrets OR Go To Heart Disease & Obesity Secrets. You have full permission to reprint this article provided this box is kept unchanged.

How Biomedical Engineering Saves Lives and The History and Techniques of DNA Sequencing

2009-06-26T22:38:00.000-07:00

Technology is changing the face of health care and products that make life easier. Biomedical Engineering is just another way technology is working to improve the quality of life.
Modern technology, especially in the medical field, is advancing by leaps and bounds, in large part through the science of Biomedical Engineering. The combination of engineering and medical technology has made these advances possible. From prosthetics to artificial organs like the Jarvik7 artificial heart to breast implants for cancer patients, biomedical engineering is improving the quality of life for millions of people all over the world. Amputees can walk and even run with the use of biomedical engineering technology. Patients who need heart transplants can rely on technology when real hearts are not available. People who are facing blindness can have their sight restored with biomedical engineering.
Biomedical Engineering Technology
When Dr. Jarvik invented his breakthrough artificial heart, it was through biomedical engineering. The heart is made of materials designed to limit rejection and function much the same as a real heart would, pumping blood into the arteries and receiving oxygenated blood from the lungs. Tiny telescopic lenses can be fitted into the eyes of people who are losing their sight to restore vision. Missing limbs can be replaced with biomedical prosthetics, allowing patients to walk or use their new “hands” in almost the same way the original parts operated.
How Biomedical Engineering Saves Lives
Not only does the Jarvik7 artificial heart save the lives of patients who would otherwise have died from heart disease, but diabetic patients can thank biomedical engineering for a new insulin implant that keeps the right amount of insulin going to the pancreas at a pre-determined rate to prevent insulin shock or diabetic coma. Cochlear implants are part of biomedical engineering that allow deaf people to hear everything from music to TV to sirens and traffic noises, the latter two of which can allow them to travel and even drive with a greater level of safety.
Overview
Biomedical engineering covers many different fields from drugs to imaging to replacement parts. Combining two intensive sciences such as medicine and engineering is proving to be the solution to a variety of problems. Not only is biomedical engineering extending life expectancy, but improving the quality of life for millions. Breast implants for cancer patients are a great quality of life enhancer. Biomedical engineering is especially important to wounded military personnel during wartime. Being able to restore people to their normal quality of life is one of the most important parts of biomedical engineering.

The History and Techniques of DNA Sequencing

One of the key requirements for developing personalized medicine is a fast and accurate DNA sequencing technology. Learn about the history of DNA sequencing here.

What is DNA sequencing?
DNA sequencing is the process of determining the order of nucleotides in DNA. DNA sequencing is often talked about in the context of the Human Genome Project, in which, the human genome was successfully sequenced in 2001, providing scientists an incredible amount of data. The technology of DNA sequencing has evolved rapidly in the past 15 years. You now can pay companies to obtain your personal genome sequencing. This allows you to access your disease risk and to analyze and compare your genetic traits.
How does DNA sequencing work?
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DNA molecules consist of repeating nucleotides, which are the the bases of DNA. Nucleotides consist of adenine (A), thymine (T), guanine (G), and cytosine (C). DNA molecules are double-stranded, with two complimentary DNA strands forming a double helix. DNA sequencing aims to determine the exact order of the bases, A, T, C and G in a DNA fragment.
The basic principle of DNA sequencing is simple and consists of two main steps. In the first step, labeled nucleotides are inserted into copies of a DNA fragment. In the second step, the DNA sequence is derived from the locations of the labeled nucleotides. The first step involves a technique called DNA amplification. First, the original double-stranded DNA is heated and separated into two single DNA strands. Then, these single strands are used as a template for making complementary copies. We then end up with a large number of fragments of different lengths. The second step involves separating the DNA fragments according to their lengths. This is often done by electrophoresis in a polyacrylamide gel. The base at the end of each fragment is identified, allowing reconstruction of the DNA sequence.
History of DNA Sequencing
Prior to 1970s, no progress had been made toward the sequencing of DNA. In the mid 1970s, the technology of DNA sequencing was revolutionized by Sanger, who later on won his second Nobel Prize in chemistry for this invention. The complete DNA sequence of a viral genome was reported by Sanger in 1977. However, Sanger's technique of DNA sequencing was still very slow.
By the begining of 1990s, only a handful of groups were able sequence DNA up to 100,000 bases at extremely high costs. The start of the Human Genome Project had inspired scientists and engineers to come up with automation techniques that not only speed up the process of DNA squencing but also to substantially lower its cost. DNA sequencing is now done routinely all round the world. There are now many laboratories that can sequence 100 million bases or more every year. In addition to the human genome, DNA sequencing is also used to obtain genomes of many organisms, including mice, rats, fruit flies, worms, yeast, fungi, microbes, plants, mosquitos, bacteria and viruses.

Applications of Genomics in Medicine - Personalized Medicine
This series of article introduces readers to existing and potential applications of genomics in improving disease treatment. We focus on the topics of personalized medicine (pharmacogenomics), DNA technology and genetic screening.
1.
COLARIS: A Genetic Test for Hereditary Colon Cancer
2.
23andMe: Personal Genetics
3.
Personalized Medicine and Politics
4.
The History and Techniques of DNA Sequencing
5.
Applications of DNA Sequencing

See More About:Personalized medicine, DNA, DNA sequencing history

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Windows Mobile 6.1 Takes On iPhone 3G And Wins. Easily.

2009-06-26T22:34:00.000-07:00

While the iPhone 3G may be garnering the most press, Windows Mobile 6.1 goes beyond a flashy campaign and offers true overall functionality. Functions that fully supports a wide range of commercial and business applications for users of every background.
The iPhone is a great device, there really is little debating that fact, although the iPhone 3G had lost some support in the past due to issues with calls dropping randomly. Of course Windows Mobile devices have not always been perfect either. That's why today i'm going to discuss the main differences between the iPhone 3G Operating System and the newly minted Windows Mobile 6.1 OS.

The Need for Speed:
Given the name of the new iPhone the first important aspect to look at is the speed. Under Apple leadership the unit can download up to 3.6Mbps via HSDPA data speeds.
In this respect Windows Mobile 6.1 wins, offering up to 7.2Mbps depending on the device in question and its own limitations. Sure Microsoft depends on the technology of the manufacturers, but it also means the company has created an OS that is easily expandable to a bevy of handsets.
Video Calling:
The Windows Mobile 6.1 interface also allows itself to 3G Video calling, its the reason devices such as the HTC TyTN II have provided an additional VGA camera on the front of such devices. The iPhone on the other hand lacks the secondary camera and the faster download speeds necessary for fulfilling such a task.
Unlocked vs Locked:
Then there's the issue of Unlocked versus Locked devices. Sure you can hack your iPhone, but many Windows Mobile devices come factory unlocked, meaning more worldwide usability. Not to mention a variety of carriers worldwide carry the Windows Mobile 6.1 offering, only select carriers with the "priviledge" of carrying the iPhone 3G are available.
Multi-Touch:
On the other hand the iPhone 3G allows for multi-touch which comes standard on the device. This is one option on the iPhone I really like, it makes zooming in and out on pictures and files easy, and it offers more touch functionality to the unit, something that is sorely missing on Windows Mobile 6.1 Professional devices.
Email:
Email is a big consideration on most devices these days, especially for business purposes. In this case, both units offer Microsoft Exchange support, however Windows Mobile 6.1 Professional offers Server 2007 support, full out of office support directly from your device, and syncing capabilities that really can't be reviled by the iPhone.
Windows Mobile 6.1 devices then fully support editing office documents while also keeping their original format. Sure the iPhone can download your documents easily, but they can't match the prowess Microsoft offers for document viewing and editing.
Third Party Applications:
Next there's the issue of 3rd Party Applications. iPhone offers the Apple Apps Store, a great addition that offers programs from $.99 and up. Sure it's a great feature and all of the programs are approved by Apple before they go live, helping to ensure spyware isn't part of the equation.
However, Windows Mobile offers literally thousands of third party freeware applications, along with the largest catalogue of non-freeware software from companies such as Handango and MobiHand online. If you are looking to diversify your application portfolio Windows Mobile is really the only way to go. But that doesn't mean the iPhone....
Continue to Page 2 for more on third party applications, GPS and browser comparisons.is out of the picture, Apple has always managed to attract some of the worlds most talented programs, and while Microsoft charges upwards of $500 for their software developers kit, Apple offers their developer kit for free and they offer great helpful hints and support to software developers. Plus developers receive a 70% revenue share compared to the 40%-50% offered by Windows Mobile. In all fairness however, the Windows Mobile platform allows developers to reach out to a large pool of users.
I also like the tilt sensor on the iPhone. Sure there are a few devices that offer the same function for WM devices, but the iPhone technology is leaps and bounds above the competition, offering quick transitions between regular and landscape modes, and taking full advantage of video games.

GPS:
In terms of GPS, the iPhone does offer Assisted GPS which uses cell tower information to pinpoint your location. It's very accurate, but not always great for areas with bad cell phone coverage.
Windows Mobile devices however in many cases offer not only AGPS but also built-in Sirf III processors which means GPS use wherever you may be. Plus at the time of this article there is no navigation software available for the iPhone (note, there lastest firmware updates this). With WM 6.1 you can use TomTom, Pharos, CoPilot and a host of other navigation options for all of your GPS needs including Topo Graphs, City Maps, and anything else your heart desires.
Internet Browsers:
Finally, I do like the iPhone Safari internet browser, it trumps the standard Windows Mobile Internet Browser, however Windows Mobile now has the option of Opera Mini 9.5 which helps level the playing field. And while the iPhone and iPhone 3G Safari browser is superior, the slower download speeds hinder the performance of the iPhone browser.
Conclusion:
These are just a few of the major differences between the iPhone and Windows Mobile 6.1 devices.
Personally I believe the iPhone series is moving in the right direction, but there is still a long way to go before Apple can claim the best operating system on the market.
As it currently stands, Windows Mobile 6.1 offers more functionality for a wider audience, and in a fragmented society, that type of breadth is just as important as a sleek design with a cool interface................

Treatment of Crohn’s Disease

2009-06-26T22:28:00.000-07:00

Crohn’s disease is an autoimmune disorder which has no medical cure. However, there are several treatment options that can alleviate symptoms.
What is Crohn’s Disease?

Crohn’s disease is a type of inflammatory bowel disease in which the digestive tract is chronically inflamed, causing a range of gastrointestinal symptoms. Long-term, the inflammation can affect the deep tissue of the digestive tract, and the disease may eventually become life-threatening.
The current thinking on Crohn’s disease is that the immune system is involved in some way. One theory is that Crohn’s disease is a chronic response to an infection with a microorganism such as Mycobacterium avium paratuberculosis, an intestinal bacterium of cattle. Another theory is that Crohn’s disease is an autoimmune disorder.
There is also a possibility of a genetic component to the development of Crohn’s disease. Around 20% of people with Crohn’s disease have a close relative who also has the condition. In addition, people with Crohn’s disease frequently have a mutation in a gene called NOD2/CARD15. This gene codes for a protein which is a component of the immune system.
Symptoms of Crohn’s disease include diarrhea, abdominal cramping, blood in the stool, reduced appetite, weight loss, and ulcers.
Treatment Options for Crohn’s Disease
There is no cure for Crohn’s disease, but there are several options for treatment. Drug therapy can help ease the symptoms of the disease, and in some cases can even cause the disease to go into remission. In some cases, people with Crohn’s disease may eventually require surgery.
Medication
The goal of using medication to treat Crohn’s disease is to reduce inflammation and side effects, and help the digestive tract to heal.
Anti-inflammatory drugs are usually the first line of medication therapy for Crohn’s disease. These drugs are usually non-steroidal anti-inflammatory drugs, but if NSAIDS are not effective, corticosteroids may be indicated for short-term use. When used in conjunction with other medications, corticosteroids can allow the body to enter remission.
Immunosuppressants are drugs that suppress the immune system. These drugs are effective in treating Crohn’s disease symptoms because inflammation is an immune response. Immunosuppressants are often used following corticosteroid treatment to help induce remission.
Antibiotics are used when abscesses or fistulas form, as these are likely to become infected.
Other medications used depend on symptoms. Anti-diarrhea medication, laxatives, pain medication are all recommended by doctors depending on circumstances. Nutritional supplements may also be recommended.
Surgery
For some people, lifestyle changes, medication, and other types of treatment don’t provide relief from symptoms of Crohn’s disease. In these cases, surgery may be indicated.
During surgery, a surgeon may remove a badly damaged part of the digestive tract, and then connects up the ends of the healthy tissue. In another type of surgery, called strictureplasty, sections of intestine that have become narrow due to the formation of scar tissue are widened.
In other cases, surgery might be required to close a fistula or remove scar tissue that might be causing further problems. A fistula occurs when inflammation is so extensive that a hole forms in the digestive tract, forming a “tunnel” from the digestive tract into nearby spaces such as the bladder or vagina.
Successful surgery for Crohn’s disease can help the body enter into a remission that might last several years. However, the benefits of surgery are almost always temporary, as the disease will recur somewhere in the digestive tract. Up to 75% of people with Crohn’s disease require at least one surgery, and of those, around half will undergo two or more separate procedures.
References
Crohn’s Disease information from the National Institute of Diabetes and Digestive and Kidney Diseases at the National Digestive Diseases Information Clearing House
The Mayo Clinic on Crohn’s Disease

Bypass Surgery & Pleural Effusion

2009-06-25T23:54:00.000-07:00

"Pleural effusion is a common complication after bypass surgery", say researchers who recently carried out a study of 400 patients who had undergone bypass heart surgery. Pleural effusion involves the accumulation of fluid within the pleural space in the chest. Pleural space is //the narrow space between the lungs and the chest wall, covered by a thin transparent membrane called the pleura. The study indicated that almost 55% had a pleural effusion one month after the bypass surgery. Around 15 per cent of cases had an effusion that occupied more than 25 per cent of one side of the chest while in most of cases the effusions were small, left-sided and disappeared over time.Patients who suffered large pleural effusions after the surgery complained of severe breathlessness - although not of chest pain or fever. However, these large effusions also disappeared slowly over a year following the surgery.

Bypass Heart Surgery Performed Without General Anesthesia,,

2009-06-25T23:53:00.000-07:00

A minimally invasive direct coronary artery bypass (MIDCAB) procedure was performed at Pittsburgh while the patient was awake. The operation was done under thoracic epidural anesthesia. This approach may help in discharging the patient early from the hospital. Dr. Zenati from the team of doctors who performed the surgery said that patients who are operated in this way may not have to go to the intensive care unit at all and this surgery may be undertaken as a day case surgery once it is perfected. Speaking about the other profound advances in the bypass surgery Dr.Zenati said, "Elimination of the heart lung machine so that our surgery is done now using beating heart techniques. Then we shrunk the size of the incision. Now we are working on a robotic method that requires only 5-mm pin-size holes. We are basically eliminating incisions altogether, We are eliminating what is not necessary while maintaining the core of the procedure, which is the arterial revascularization. Eventually we want surgical bypass to be the first line of therapy not the last resort when everything else fails." In this specific case the incision was about 2-1/2 inches,

Anatomical Science International joins Springer's publishing program

2009-06-25T23:42:00.000-07:00

The Japanese Association of Anatomists has chosen Springer to publish its official journal, Anatomical science International. The first issue will be published at Springer in April 2009. The journal was previously published by Wiley-Blackwell.
Anatomical science International focuses on the morphological sciences in animals and humans. Topics include molecular, cellular, histological and gross anatomical studies. In addition to original research articles, the journal also publishes reviews, essays, case reports, book reviews and commentaries. Dr. Shohei Yamashina, Professor Emeritus at the Kitasato University School of Medicine, is the current editor-in-chief. Dr. Kiyotaka Toshimori, Professor and Chairman in the department of anatomy and Developmental Biology at Chiba University School of Medicine, will take over as editor-in-chief in April 2009.
Editorial Director Dr. Toyoshi Fujimoto, Professor in the department of Molecular Cell Biology at the Nagoya University Graduate School of Medicine, said, "Anatomical science International presents the most up-to-date information on modern anatomy, providing readers with high-impact, original work focusing on pivotal issues. We are excited to be partnering with Springer in the publication of this journal, and we look forward to providing life science researchers worldwide with information resources for their daily work."
Dr. Dieter Czeschlik, Editorial Director for Life sciences at Springer, said, "We are delighted to be working with the Japanese Association of Anatomists, and their journal will be an excellent addition to our publishing program. We are proud to bring the excellent and timely research published in the Anatomical science International to the international community via our online platform SpringerLink, thereby giving both authors and readers the benefit of state-of-the-art global communication."
Anatomical science International<'/>"/>

Science Reference

2009-06-24T22:11:00.000-07:00

Denaturation (biochemistry)

Denaturation is the alteration of a protein shape through some form of external stress (for example, by applying heat, acid or alkali), in such a way that it will no longer be able to carry out its cellular functiDenatured proteins can exhibit a wide range of characteristics, from loss of solubility to communal aggregation.
Proteins are very long strands of amino acids linked together in specific sequences.
A protein is created by ribosomes that "read" codons in the gene and assemble the requisite amino acid combination from the genetic instruction, in a process known as translation.
The newly created protein strand then undergoes post-translational modification in which additional atoms or molecules are added, for example copper, zinc, iron.
Once this post-translational modification process has been completed, the protein begins to fold (spontaneously, and sometimes with enzymatic assistance), curling up on itself so that hydrophobic elements of the protein are buried deep inside the structure and hydrophilic elements end up on the outside.
The final shape of a protein determines how it interacts with its environment..
For more information about the topic Denaturation (biochemistry), read the full article at Wikipedia.org, or see the following related articles:
Protein folding — Protein folding is the process by which a protein structure assumes its functional shape or conformation. All protein molecules are heterogeneous ... > read more
Protein structure — Proteins, similar to carbohydrates and lipids, are made up of such elements as carbon, hydrogen and oxygen. They are amino acid chains, made up from ... > read more
Protein biosynthesis — Protein biosynthesis (Synthesis) is the process in which cells build proteins. The term is sometimes used to refer only to protein translation but ... > read more
Heat shock protein — Heat shock proteins (HSP) are a group of proteins the expression of which is increased when the cells are exposed to elevated ... > read moreon..................

Basic Science Reports

2009-06-24T22:07:00.000-07:00

Sinoatrial Node Dysfunction and Early Unexpected Death of Mice With a Defect of klotho Gene Expression //:

Kyosuke Takeshita, MD, PhD*; Toshihiko Fujimori, PhD*; Yoko Kurotaki; Haruo Honjo, MD, PhD; Hiroshi Tsujikawa, MD; Kenji Yasui, MD, PhD; Jong-Kook Lee, MD, PhD; Kaichiro Kamiya, MD, PhD; Kiyoyuki Kitaichi, PhD; Koji Yamamoto, MD, PhD; Masafumi Ito, MD, PhD; Takahisa Kondo, MD, PhD; Shigeo Iino, MD, PhD; Yasuya Inden, MD, PhD; Makoto Hirai, MD, PhD; Toyoaki Murohara, MD, PhD; Itsuo Kodama, MD, PhD; Yo-ichi Nabeshima, MD, PhD
From the Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya (K.T., T.K., S.I., Y.I., M.H., T.M.); Department of Pathology and Tumor Biology, Kyoto University Graduate School of Medicine, Kyoto (T.F., Y.K., H.T., Y.N.); Research Institute of Environmental Medicine and Department of Health Medicine, Nagoya University, Nagoya (H.H., K.Y., J.L., K. Kamiya, I.K.); Department of Molecular Medicine and Clinical Science, Nagoya University Graduate School of Medicine, Nagoya (K. Kitaichi); Division of Pathology, Clinical Laboratory, Nagoya University Hospital, Nagoya (M.I.); and Core Research for Evolutional Science and Technology, Japan Science and Technology Agency (Y.K., Y.N.), Japan.
Correspondence to Yo-ichi Nabeshima, MD, PhD, Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe cho, Sakyo-ku, Kyoto 606-8501, Japan. E-mail nabemr@lmls.med.kyoto-u.ac.jp
"
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Received August 12, 2003; revision received December 3, 2003; accepted December 22, 2003.
Background— Homozygous mutant mice with a defect of klotho gene expression (kl/kl) show multiple age-related disorders and premature death from unknown causes.
Methods and Results— The kl/kl mice subjected to 20-hour restraint stress showed a high rate (20/30) of sudden death, which was associated with sinoatrial node dysfunction (conduction block or arrest). Heart rate and plasma norepinephrine of kl/kl mice, unlike those of wild-type (WT) mice, failed to increase during the stress. Intrinsic heart rate after pharmacological blockade of autonomic nerves in kl/kl mice was significantly lower than that in WT mice (380±33 versus 470±44 bpm; n=7). The sinus node recovery time after an overdrive pacing (600 bpm, 30 seconds) in kl/kl mice was significantly longer than in WT mice (392±37 versus 233±24 ms; n=6). In isolated sinoatrial node preparations, the positive chronotropic effect of isoproterenol was significantly less, whereas the negative chronotropic effect of acetylcholine was significantly greater in kl/kl than in WT mice. There was no degenerative structural change in the sinoatrial node of kl/kl mice. The precise localization of klotho was analyzed in newly prepared klotho-null mice with a reporter gene system (kl–geo). Homozygous kl–geo mice showed characteristic age-associated phenotypes that were almost identical to those of kl/kl mice. In the kl–geo mice, klotho expression was recognized exclusively in the sinoatrial node region in the heart in addition to parathyroid, kidney, and choroid plexus.
Conclusions— In the heart, klotho is expressed solely at the sinoatrial node. klotho gene expression is essential for the sinoatrial node to function as a dependable pacemaker under conditions of stress.
Key Words: genetics • death, sudden • aging • sinoatrial node

Types of gene therapy

2009-06-21T23:36:00.001-07:00

Germ line gene therapyIn the case of germ line gene therapy, germ cells, i.e., sperm or eggs, are modified by the introduction of functional genes, which are ordinarily integrated into their genomes. Therefore, the change due to therapy would be heritable and would be passed on to later generations. This new approach, theoretically, should be highly effective in counteracting genetic disorders. However, this option is prohibited for application in human beings, at least for the present, for a variety of technical and ethical reasons.Somatic cell gene therapyIn somatic cell gene therapy, the gene is introduced only in somatic cells, especially of these tissues in which expression of the concerned gene is critical for health. Expression of the introduced gene relieves/ eliminates symptoms of the disorder, but this effect is not heritable as it does not involve the germ line. At present, somatic cell therapy is the only feasible option, and clinical trials addressing a variety of conditions have already begun

When do Genetic Engineering make changes?

2009-06-21T23:34:00.000-07:00

Changes at conceptionGenetic engineering is most easily accomplished by making changes just after the egg and sperm have melded but before first division. In this way, the gene will be expressed throughout and will affect the recipients children, grandchildren, and all subsequent generations. Germline engineering is controversial because there is insufficient knowledge about DNA expression to accurately judge what result these changes will have.Changes after birthAs of now, this is likely to take the form of gene therapy. This would not be hereditary unless the sex cells are engineered.

Future technology in human genetic enngineering

2009-06-21T23:33:00.000-07:00

There are limitations to what current technology can do. Research scientists want to get finer control on how DNA sequences might be added to a host cell. Technologies that could offer this sort of control might well result from a merger of highly engineered/modified viruses with micromechanical technologies, modified to migrate to a particular specified N nucleotide sequence in the host DNA for N significantly large to minimize targeting errors, then precisely and efficiently insert the desired snippet in the correct position in the host. Evidently it would be desirable to allow such a device/organism to feed on available resources in the host in order to migrate from cell to cell and perform this process until a significant proportion of host cells had been transformed; it would then be desirable for the device to disable itself. Also it would be desirable for the device to understand when it had finished with a cell (e.g. after levels of a desired protein reach a critical threshold, though this would be perhaps too slow, i.e. movement via measurement of some sort of chemical gradient) so that it could move on. Certainly such devices could not be user controlled for a large population; they would need to be autonomous.Since DNA sequences vary from individual to individual, and individuals may even be chimeras, also required would be the capability to sequence individual genomes, the ability to target fixes to particular parts of a chimera population, and finally a good understanding of how to avoid disruptive edits- that is, edits that do not disrupt the functioning of some other process in the cell. This requires some level of mastery of the area of proteomics, that is, the understanding of a lifeform's proteome.

Human Genetic Engineering in current technology

2009-06-21T23:26:00.000-07:00

Current technology :
One available method is gene manipulation through virus insertion. The main mechanism by which this operates is a fairly standard one; one is taking advantage of the way viruses hi-jack the cellular machinery to make multiple copies of themselves. The way they do this is by inserting a segment of their genome into the DNA of the host after penetrating the cellular wall, and so use this to instruct the host cell to produce multiple copies of the virus. This process could be utilized as a mechanism to spread new DNA by altering the genome of the virus itself to include the desired new DNA sequence. The altered virus could be injected into a host cell, where it would propagate and eventually spread the new DNA throughout the host’s body. Problems with this approach may be:Randomness of the insertion of the DNA fragment wanted (this might lead, for instance, to a cell turning cancerous, or being more subtly disrupted),Possible lack of control over the immune response to the "retrovirus", andPossible problems getting complete transformation of the target cell population.Another approach is to take advantage of the cell's endogenous ability to undergo homologous recombination wherein an exogenous DNA fragement with ends matching an endogenous gene replaces the target gene by action of enzymes called recombinases. This is the technology used for "knockouts" and "knock-ins" and generally cannot be performed on an intact organism and is therefore only a candidate for germline (i.e. single cell) genetic manipulation. This technology has very widespread usage in mouse genetics wherein genetically altered embryos are grown in a surrogate mother. This could easily be extended to humans in the very near future as there are no major additional technological hurdles remaining to engineer humans versus mice (though minor hurdles certainly remain). The primary hurdle is ethical, as the efficiency of this process can be quite poor and many embryos would be sacrificed in order to produce one genetically modified offspring.

Surgical Anatomy of the Heart

2009-06-21T22:52:00.000-07:00

Introduction:

Intraoperatively, the anatomy of the heart is viewed from the right side of the supine patient via a median sternotomy incision. The structures initially seen from this perspective include the superior vena cava, right atrium, right ventricle, pulmonary artery, and aorta. Medial displacement of the right side of the heart exposes the left atrium and right pulmonary veins. Medial rotation from the left exposes the left ventricle apex, left pulmonary veins, and left atrium.

The overall shape and position of the heart may vary according to the relative size and orientation of each of its parts. For example, a large right ventricle may allow exposure of only a short segment of aorta; this is because of the narrow confines of the middle mediastinal space.

Cardiac Chambers:

Right atrium
The superior vena cava and inferior vena cava drain systemic venous blood into the posterior wall of the right atrium. The internal wall of the right atrium is composed of a smooth posterior portion (into which the vena cavae and coronary sinus drain) and a ridgelike muscular anterior portion. The coronary sinus drains coronary venous blood into the anteroinferior portion of the right atrium. The thebesian valve is located at the orifice of the coronary sinus. The limbus of the fossa ovalis is located on the medial wall of the right atrium and circumscribes the septum primum of the fossa ovalis anteriorly, posteriorly, and superiorly.
The right auricle is separated from the right atrium by a shallow posterior vertical indentation on the right atrium (ie, the sulcus terminalis) and, internally, by a vertical crest (ie, the crista terminalis). The crista terminalis separates the right atrium into trabeculated and nontrabeculated portions.
Congenital anomalies of right atrial components can be associated with clinically significant cardiac malformations. For example, in patients with tricuspid atresia, the eustachian and thebesian valves may be so enlarged that they physically separate the right atrium into 2 distinct sections. Other variations include juxtaposition of both atrial appendages and malpositioning of both appendages.
Left atrium
The 4 pulmonary veins drain into the left atrium. The flap valve of the fossa ovalis is located on the septal surface of the left atrium. The appendage of the left atrium is consistently narrow and long; recognition of this appendage is the most reliable way to differentiate the left atrium from the right atrium. The left atrial appendage is the only trabeculated structure in the left atrium because, unlike the right atrium, the left atrium has no crista terminalis.
Right ventricle
The right ventricle receives blood from the right atrium across the tricuspid valve, which is located in the large anterolateral (ie, sinus) portion of the right ventricle. The right ventricle discharges blood into the pulmonary artery across the pulmonic (semilunar) valve located in the outflow tract (infundibulum). The inflow tract (sinus) and outflow tract (infundibulum) of the right ventricle are widely separated. Internally, both the sinus area and infundibulum contain coarse trabeculations.
The septal portion of the right ventricle has 3 components: (1) the inflow tract, which supports the tricuspid valve; (2) the trabecular wall, which typifies the internal appearance of the right ventricle; and (3) the outflow tract, which itself is subdivided into 3 components, namely, the conal septum, septal band division, and trabecular septum. Of these 3 subdivisions, the conal septum is clinically significant because it can be malpositioned in patients with congenital disorders (eg, double outlet right ventricle).
Lateral to the conal septum, the parietal extension of the infundibular septum and the infundibular fold comprise the crista supraventricularis. Ventricular septal defects (VSDs) commonly occur in the area between the sinus and the outlet tract of the right ventricle. However, because the surface of the right ventricle is trabecular, small defects of the muscular portion of the ventricular septum may be difficult to see.
The tricuspid valve is supported by a large anterior papillary muscle, which arises from the anterior free wall and the moderator band, and by several small posterior papillary muscles, which attach posteriorly to the septal band.
Left ventricle
The left ventricle receives blood from the left atrium via the mitral (ie, bicuspid) valve and ejects blood across the aortic valve in the aorta. The left ventricle can be divided into 2 primary portions, namely, the large sinus portion containing the mitral valve and the small outflow tract that supports the aortic (semilunar) valve. Inflow and outflow portions are closely juxtaposed, unlike in the right ventricle, in which the tricuspid and pulmonic valves are widely separated.
The free wall and apical half of the septum contain fine internal trabeculations. The septal surface is divided into a trabeculated portion (sinus) and a smooth portion (outflow). The sinus area just beneath the mitral valve is termed the inlet septum; the remainder of the sinus area is termed the trabecular septum. The outflow tract is located anterior to the anterior mitral leaflet and is part of the atrioventricular (AV) septum. Both the right half of the anterior mitral valve leaflet and the right aortic cusp attach to the septum. (In the right ventricle, only the septal tricuspid leaflet attaches to the septum.)
The left half of the anterior mitral leaflet is in direct fibrous contact with the aortic valve at the aortic-mitral annulus. The conal septum of the right ventricle is positioned opposite the aortic valve. The mitral valve is supported by 2 large papillary muscles (ie, anterolateral, posteromedial) attached to the free wall. The anterior papillary muscle is attached to the anterior portion of the left ventricular wall, and the posterior papillary muscle arises more posteriorly from the ventricle's inferior wall.1

Great Vessels and SeptAorta
The aorta begins at the base of the heart and typically branches to form the coronary arteries just distal to the aortic valve. In patients with cardiac malformations, the aorta almost always can be identified by tracing it back from the brachiocephalic arteries, which only very rarely originate from the pulmonary artery.
Pulmonary artery
The main pulmonary artery branches into the pulmonary arterial system. In patients with aberrant cardiac anatomy with a patent ductus arteriosus, accurate identification of the pulmonary artery can be difficult using angiography because the pulmonary artery becomes opaque during aortic injection. To differentiate the pulmonary artery from the aortic valve, remember that the pulmonary artery almost never gives off brachiocephalic branches.
Ventricular septum
The ventricular septum is divided into a muscular section (inferior) and a membranous section (superior). The muscular portion comprises the left and right ventricular walls. The membranous septum, also termed the pars membranacea, is a fibrous structure partially separating the left ventricular outflow tract from the right atrium and ventricle.
Atrioventricular septum
The atrioventricular (AV) septum, located behind the right atrium and left ventricle, is divided into 2 portions: a superior portion (membranous) and an inferior portion (muscular). Inside the left ventricle, the muscular component comprises part of the outlet septum. The AV node lies in the atrial septum, juxtaposed to the membranous and muscular portions of the AV septum.i:

Conduction System:

Sinus node
The sinoatrial (SA) node occupies a 1-cm2 area on the lateral surface of the junction of the superior vena cava and right atrium near the crista terminalis. The sinus node is found superficially at the anterolateral aspect of the junction between the superior vena cava and the right atrial appendage. In rare cases, the SA node may be found medially along the ridge of the atrial-caval junction.
Internodal pathways
The spread of electrical activation from the sinus node extends toward the atrioventricular (AV) node via Purkinjelike pale cells in atrial muscle bundles. Anterior, medial, and posterior interatrial conduction pathways arise from the SA node. The anterior and medial pathways are located anterior and posterior to the foramen ovale; the posterior pathway is situated caudal to the foramen ovale.
Atrioventricular node
The AV node is situated directly on the right atrial side of the central fibrous body in the muscular portion of the AV septum, just superior and anterior to the ostium of the coronary sinus. Measuring approximately 0.1 cm X 0.3 cm X 0.6 cm, the node is flat and oval. The node's left surface is juxtaposed to the mitral anulus.
His bundle and bundle branches
The AV node continues onto the His bundle via a course inferior to the commissure between the septal and anterior leaflets of the tricuspid valve. The bundle follows a course along the inferior border of the membranous septum and, near the aortic valve, gives off fibers that form the left bundle branch. The His bundle is located on the left side of the ventricular septum in 80% of patients. In the 20% of patients in whom the bundle is on the right side of the septum, the His bundle is connected to the left bundle by a narrow stem.
The left bundle branch further subdivides into several smaller branches that begin at the ventricular septal surface and radiate around the left ventricle. The right bundle branch originates from the His bundle near the membranous septum and courses along the right ventricular septal surface, passing toward the base of the anterior papillary muscle.2,3

Cardiac Valves:
Cardiac valves are categorized into 2 groups, based on function and morphology. Mitral and tricuspid valves comprise the atrioventricular (AV) group; aortic and pulmonary valves comprise the semilunar group. On cross section, the aortic valve is located in a central location, halfway between the mitral and tricuspid valves. The pulmonary valve is positioned anterior, superior, and slightly to the left of the aortic valve. The tricuspid and mitral anuli merge and fuse with each other and with the membranous septum to form the fibrous skeleton of the heart.
Mitral valve
The AV valve of the left ventricle is bicuspid. The AV valve has a large anterior leaflet (septal or aortic) and a smaller posterior leaflet (mural or ventricular). The anterior leaflet is triangular with a smooth texture. The posterior leaflet has a scalloped appearance. The chordae tendineae to the mitral valve originate from the 2 large papillary muscles of the left ventricle and insert primarily on the leaflet's free edge.
Tricuspid valve
The AV valve of the right ventricle has anterior, posterior, and septal leaflets. The orifice is larger than the mitral orifice and is triangular. The tricuspid valve leaflets and chordae are more fragile than those of the mitral valve. The anterior leaflet, largest of the 3 leaflets, often has notches. The posterior leaflet, smallest of the 3 leaflets, is usually scalloped. The septal leaflet usually attaches to the membranous and muscular portions of the ventricular septum.
A major factor to consider during surgery is the proximity of the conduction system to the septal leaflet. The membranous septum lies beneath the septal leaflet, where the His bundle penetrates the right trigone beneath the interventricular membranous septum. Moreover, the portion of the septal leaflet between the membranous septum and the commissure may form a flap valve over some ventricular septal defects (VSDs).
Aortic valve
The aortic valve has 3 leaflets composed of fragile cusps and the sinuses of Valsalva. Thus, the valve apparatus is composed of 3 cuplike structures that are in continuity with the membranous septum and the mitral anterior leaflet. The free end of each cusp has a stronger consistency than the cusp. The midpoint of each free edge contains the fibrous nodulus arantii, which bisects the thin crescent-shaped lunula on either side.
The aortic sinuses of Valsalva are 3 dilations of the aortic root that arise from the 3 closing cusps of the aortic valve. The right and left sinuses give rise to the right and left coronary arteries; the noncoronary sinus has no coronary artery. The sinus of Valsalva walls are much thinner than the aortic wall, which is a factor of surgical significance; therefore, aortotomies are typically performed away from this region.
The aortic annulus is situated anteriorly to the mitral valve annulus and the anterior leaflet of the mitral valve. The cranial portion of the left atrium is interposed between the aortic and mitral valves. Anteriorly, the aortic annulus is related to the ventricular septum and right ventricular outflow tract. The His bundle courses beneath the right and noncoronary aortic valve cusps of the membranous ventricular septum. Thus, incision of the aortic annulus or septal myocardium anterior to the right coronary sinus should not interfere with the conduction system.
Pulmonary valve
As with the aortic valve, the pulmonary valve has 3 cusps, with a midpoint nodule at the free end and lunulae on either side; a sinus is located behind each cusp. Compared with the aortic valve, the pulmonary valve has thinner cusps, no associated coronary arteries, and no continuity with the corresponding (anterior) tricuspid valve leaflet. The term used for each cusp reflects its relationship to the aortic valve, namely, right, left, and nonseptal.1

Coronary Arteries:The 2 main coronary arteries are the right and left. However, from a surgical standpoint, 4 main arteries are named: the left main, the left anterior descending, and the left circumflex (LCX) arteries (which are all branches of the left coronary artery) and the right coronary artery (RCA). The RCA and LCXs form a circle around the atrioventricular (AV) sulci. The left anterior descending and posterior descending arteries form a loop at right angles to this circle; these arteries feed the ventricular septum. The LCX gives off several parallel, obtuse, marginal arteries that supply the posterior left ventricle. The diagonal branches of the left anterior descending artery supply the anterior portion of the left ventricle.
The term dominance is used to refer to the origin of the posterior descending artery (PDA). When the PDA is formed from the terminal branch of the RCA (>85% of patients), it is termed a right-dominant heart. A left-dominant heart receives its PDA blood supply from a left coronary branch, usually the LCX. This is often referred to as a left posterolateral branch (LPL).
Left main coronary artery
The left main coronary artery (LCA) originates from the ostium of the left sinus of Valsalva. The LCA, which courses between the left atrial appendage and the pulmonary artery, typically is 1-2 cm in length. When it reaches the left AV groove, the LCA bifurcates into the left anterior descending (LAD) and the LCX branches. The LCA supplies most of the left atrium, left ventricle, interventricular septum, and AV bundles. The LCA arises from the left aortic sinus and courses between the left auricle and the pulmonary trunk to reach the coronary groove.
Left anterior descending artery
After originating from the left main artery, the LAD artery runs along the anterior interventricular sulcus and supplies the apical portion of both ventricles. The LAD artery is mostly epicardial but can be intramuscular in places. An important identifying characteristic of the LAD artery during angiography is the identification of 4-6 perpendicular septal branches. These branches, approximately 7.5 cm in length, supply the interventricular septum.
The first branch of the LAD artery is termed the ramus intermedius. In fewer than 1% of patients, the LCA is absent, and the LAD and LCX arteries originate from the aorta via 2 separate ostia. As the LAD artery passes along the anterior interventricular groove toward the apex, it turns sharply to anastomose with the posterior interventricular branch of the RCA. As the LAD artery courses anteriorly along the ventricular septum, it sends off diagonal branches to the lateral wall of the left ventricle. Congenital LAD artery variations may include its duplication as 2 parallel arteries (4% incidence) and length variations (premature or delayed distal termination).
Left circumflex artery
The LCA gives off the LCX artery at a right angle near the base of the left atrial appendage. The LCX artery courses in the coronary groove around the left border of the heart to the posterior surface of the heart to anastomose to the end of the RCA. In the AV groove, the LCX artery lies close to the annulus of the mitral valve. The atrial circumflex artery, the first branch off the LCX artery, supplies the left atrium. The LCX artery gives off an obtuse marginal (OM) branch at the left border of the heart near the base of the left atrial appendage to supply the posterolateral surface of the left ventricle. The color contrast between the yellow-orange OM and the adjacent red-brown myocardium may be the most reliable way to identify this artery intraoperatively. In patients with a left-dominant heart, the LCX artery supplies the PDA. Many variations in the origin and length of the LCX artery are noted. In fewer than 40% of patients, the sinus node artery may originate from the LCX artery.
Right coronary artery
The RCA is a single large artery that courses along the right AV groove. The RCA supplies the right atrium, right ventricle, interventricular septum, and the SA and AV nodes. The RCA arises from the right aortic sinus and courses in the coronary (AV) groove between the right auricle and the right ventricle. In 60% of patients, the first branch of the RCA is the sinus node artery. As the RCA passes toward the inferior border of the heart, it gives off a right marginal branch that supplies the apex of the heart. After this branching, the RCA turns left to enter the posterior interventricular groove to give off the PDA, which supplies both ventricles.
The AV node artery arises from the "U-turn" of the RCA at the crux (ie, the junction of the AV septum with the AV groove). At this point, the PDA feeds the septal, right ventricular, and left ventricular branches. The PDA courses over the ventricular septum on the diaphragmatic surface of the heart. Unlike the septal branches off the LAD artery, the septal branches from the RCA typically are short (<1.5 cm). Terminal branches of the RCA supply the posteromedial papillary muscle of the left ventricle. (The LAD artery supplies the anterolateral papillary muscle of the right ventricle.) Near the apex, the PDA anastomoses with the anterior interventricular branch of the LCA.
Common variations involving RCA anatomy include the following:
An RCA originating from the right sinus of Valsalva
The sinus node artery originating from the RCA
The acute marginal (AM) artery crossing the inferior aspect of the right ventricle to supply the diaphragmatic interventricular septum.

Coronary Veins:

The coronary sinus is a short (approximately 2 cm) and wide venous channel that runs from left to right in the posterior portion of the coronary groove. The opening of the coronary sinus is located between the right atrioventricular (AV) orifice and the inferior vena cava orifice. The coronary sinus drains all venous blood from the heart except the blood carried from the anterior cardiac veins. The coronary sinus receives outflow from the great cardiac vein on the left and from the middle and small cardiac veins on the right.
The great cardiac vein is the main tributary of the coronary sinus and drains areas of the heart supplied by the left main coronary artery (LCA). It begins at the apex of the heart, ascends in the anterior interventricular groove with the left anterior descending (LAD) artery, and enters the left end of the coronary sinus.
The middle and small cardiac veins drain most of the heart supplied by the right coronary artery (RCA). The middle cardiac vein begins at the apex, ascends in the posterior interventricular groove with the posterior interventricular artery, and empties into the right side of the coronary sinus. The small cardiac vein runs in the coronary groove along with the marginal branch of the RCA; this vein usually empties into the coronary sinus but may empty directly into the right atrium.
Coronary veins of the right ventricle drain directly into the right atrium; thebesian veins drain into the right ventricle. The left ventricle venous return drains into the coronary sinus located next to the septal portion of the tricuspid valve annulus.

Brief Article

2009-06-21T07:39:00.000-07:00

Anatomy of antisocial personality

Preliminary data suggest that deceitful, violent men diagnosed with antisocial personality disorder have a reduced amount of gray matter in the brain's prefrontal cortex. Some type of prefrontal deficit may underlie this controversial disorder, asserts a team led by psychologist Adrian Raine of the University of Southern California in Los Angeles.
Magnetic resonance imaging revealed these brain-tissue deficits in 21 men with antisocial personality disorder, compared with no such deficits in 26 men addicted to alcohol or illicit drugs, 21 men with other mental disorders, and 34 men with no psychiatric disordersIf the finding holds up, prefrontal deficits may turn out to be either a cause or a result of antisocial personality disorder, the scientists say in the February ARCHIVES OF GENERAL PSYCHIATRY.

HEALTH

2009-06-10T23:54:00.000-07:00

Laser hair removal in Toronto

Laser hair removal is commonly practiced treatment to remove unwanted hairs from the body. The high power laser beam is absorbed by the melanin and hair follicles, destroying them instantly and leaving the skin unaffected. In Toronto Baywood Clinic is an acclaimed destination for laser and cosmetic treatments done by Board Certified Laser Physicians.

Laser hair removal is a medical process where an intense and powerful laser beam is used to remove the undesired hairs from the skin. It is a widely accepted and applied technique in the dermatology community.

The main principle behind the laser hair removal is that the high wavelength laser beam is concentrated at the dark hairs, which absorb maximum of the light. Thus intense heat is produced which destroys the melanin and the hair follicle leaving the surrounding tissues unaffected. The hair follicles are destroyed instantly and as a result hairs are removed. It regulates the hair growth and multiple laser treatments give long lasting results checking the cycles of hair growth.

The success involves many factors such as the thickness and darkness of the hairs, different sites on the body, hormonal differences and the strength of laser beam that can be tolerated. With every session the hair – free intervals gradually lengthen and re-grown hairs become sparser and finer.

Alexandrite lasers with wavelength of 755 nm are the most effective ones. The GentleLase 755 nm alexandrite laser along with the GentleYag is state-of–the-art laser system for hair removal. It is powerful enough for the purpose and has a large spot size. The laser penetrates the skin and destroys the hair follicle while the skin is protected by a cooling device which sprays the cryogen to cool the upper layers providing comfort to the patient.

Many Board Certified Laser Physicians perform thousands of operations per year to across to serve the patients with the desired results.

In Toronto the Baywood Clinic is an acclaimed centre of medical treatments, cosmetic surgery and laser medicine. A board certified laser physician is always present at the clinic. All treatments are either performed or supervised by him/her. They are Toronto’s expert at laser hair removal and personally perform more than five thousand laser and cosmetic surgery treatments every year.

Top Online Forensic Science Technician Schools

2009-06-10T00:11:00.001-07:00

There are a number of online certificates, associates or bachelors degrees that qualify you to become a forensic science technician. Request free information packets from the top online forensic science technician degree programs using the "More Info" buttons below:

BS in Forensic Psychology BS in Crime Scene Investigation Crime Scene Tech Certificate ...

Kaplan University - Kaplan's three forensic science technician programs are designed to quickly prepare students for a forensic science technician career......................

BS in Justice & Forensic Science .........

American Intercontinental University - AIU's accredited fast-track forensic science technician bachelor's program allows students to get their forensic's career started in approximately 1 year...........................

BS in Crime Scene Investigation

South University - South U's accredited bachelor's forensic science technician degree provides students with the skills they need to be immediately hired as a forensic science technician.............

MA in Forensic Psychology

Argosy University - Argosy's online masters in Forensic Psychology is an excellent forensic science technician masters degree program for students who want to advance their career quickly and affordably.

5.Applied Forensic Psych. Cert.MA - Forensic Psychology

The Chicago School of Professional Psychology - The Chicago School's Certificate of Applied Forensic Psychology and Masters in Forensic Psychology programs are highly regarded for their focuses on understanding the criminal mind which is a necessary component of crime scene reconstructions when working as a forensic science technician.

http://www.forensicsciencetechnician.org/

2009-06-10T00:08:00.000-07:00

The 50 Best Safety and Security Blogs

With the amount of violence and crime increasing in today’s society, now more than ever we need to be aware of our surroundings and the issues affecting ourselves and our loved ones safety. There are several blogs out there from a wide range of experts on issues such as Internet and Identity theft, National security, and crime prevention. Here’s a list of some of the best blogs we have found that can help you stay abreast of safety issues, helpful advice, and current events that are important to you and your family’s security.
Internet and Computer Security
Criminals are no longer bound by geographic location. Today’s cyber criminal can stay in the comfort of his home just by getting online. Stay up to date with the latest developments with these blogs.
1. The Internet Security Zone Written by a group of software engineers and product managers. Receive education and information that will make your Internet experiences even more secure.
2. PC Magazine’s Security Watch This blog is brought to you by PC Magazine. Brings you the most current news, review summaries, and helpful advice on security-related topics.
3. Dedicated to Spyware.com Frequently updated posts about significant spyware-related issues and events. They have a news section where you can search stories about spyware parasites, Internet viruses, and other security-related subjects.
4. Online Security Authority Many years of experience and resources will provide you with current information on how to keep your children and their family’s safe online. The goal of this blog is to develop a community of “responsible cyber Citizens“.
5. Threat Center Post your computer security questions on this site and get fast, precise answers. Related links and resources will help you download your security software and malware removal tools from secured and legitimate websites.
6. Computer and Data Theft Victims Focuses on issues of computer and data theft. The editors of this blog provide published articles from news, wire reports, and information sources. Learn how to protect yourself from Physical hardware theft that seems to be increasing at a high rate.
7. Identity Theft Blog An open- minded blog that teaches you ways to keep your computer safe from identity theft. Actually, this blog covers every aspect of identity theft but there are vast entries regarding computer related identity theft.
8. The Internet Patrol The Internet Patrol is managed by the Institute for Spam and Internet Public Policy. Dedicated to providing analysis and commentary on subjects relating to public policies and processes regarding spam, email, and the Internet.
9. Cyber Security Tips N Tricks Outlines a number of tips and hints on cyber security. With a variety of issues such as safe surfing, ethical hacking, network security, Internet, news related to software and security breaches.
10. Internet Scams Furnishes you with a daily update of the latest internet scams. Keep yourself abreast of fraud, bank, phishing and email scams.

Home Security
Most of us think of our homes as a sanctuary, a safe place where you and/or your family can feel secure. These blogs offer good advice for keeping your home safe.
11. Home Safe Home An extensive home security and personal safety blog designed to inform readers of new updates in crime. The author is Jim McNeely who has been a Life Safety Specialist for over a decade.
12. Home Security 911 Provides information and ideas to help you create a secure environment for your home and family. Review what criminals look for when hunting for easy targets.
13. PK Safety Blog Being in business for over 60 years makes this third generation family business the authority on personal protective equipment. Get helpful advice on how to keep your home safe and secure.
14. Home Security Blog There are a wide range of topics discussed on this home security blog. Learn about everything from installing surveillance cameras to home safety for Alzheimer’s patients.
15. Residential Fire Sprinklers.com This blog is devoted to encouraging discussion on the subject of home fire protection. There are articles written by interest groups, associations and government agencies.
16. Home Security News Get the latest updates on alarms, home automation, home owner’s insurance and more. Find ways to fight and prevent crimes in your neighborhood.
17. Paul Dixon’s Home Security Blog With over 20 years in the security field, Mr. Dixon has some good advice for keeping your home secure. There are a number of articles on security systems, neighborhood watch, and home computer safety.
18. Security and Alarm Systems Blog A great resource for information on home alarm systems. This blog will let you know about scams, what the best deals are, and even step by step instructions on installation. There are also posts on fire alarms and security also.
19. Security Info Watch Offers everything you need to know about home security safety and surveillance. Get the latest on security trends, technology, loss prevention, new products and more.
Safe Kids
Keeping our children safe is a number one priority. These blogs offer commentary; stories and tips that can help young children and teenagers protect themselves from the many problems they are facing today.
20. AMW Safety Center This blog is from America’s Most Wanted. Learn safety tips to teach your kids and read articles on the most important issues affecting our children today.
21. Child predator news and online Internet safety tips Hear about current subjects related to online child predators and sex offenders. Protect the security of your own child with links, tools and information to make your child’s internet experience predator free.
22. Child Safety Every topic about keeping your children safe is covered in this blog. You can read articles on child proofing your home, stranger dangers, and consumer alert and recall reports.
23. The Dead Kids of MySpace The focus of this blog is to inform parents of criminal activity on MySpace. Posts are updated daily and include names, pictures, criminal acts, and even addresses of these offenders.
24. PC Tattletale Written by the developers of parental control software, the target of this blog is to help parents keep their kids safe in the online world today. They even have a site called Teen Chat Decoder that allows parents to decipher the acronyms kids use online and on their cell phones.
25. Safety Clicks This is a complete parent’s guide to internet safety. Research the best parental controls and software out there and get reviews on them.
26. Amber Alert GPS™ Child Safety Blog This blog is written by members of the Amber Alert GPS tracking Device Company. This is a great resource for teaching children about the danger of strangers and what they should do in different situations that they might come upon.
27. Family Watchdog Provides you with tips, advice and resources to keep your children safe from sex offenders. There is also a link that allows you to view known registered offenders and predators in your area.
28. ChildSafetyBlog.org A central location where parents and caregivers can find information about child safety. Read updated information regarding recalls, child safety news, best safety practices, state-of-the-art products, as well as opinions about everything related to child safety.
National and Homeland Security
These blogs cover the genuine opinions and facts that our researchers, government, and experts can offer on homeland security and how it relates to common citizens.
29. Homeland Security Digital Library Weblog On the Homefront. Sources on everything from FBI hate crime statistics to CSIS documents. This blog combines many different blogs for an array of coverage.
30. USA Homeland Security A forum where Americans can broadcast their opinions about US Homeland Security. These posts are heartfelt and will make you think about our liberty and rights.
31. Think Progress This organization promotes open minded ideas and politics. Their blog supports this goal with articles commonly touching on homeland security issues like immigration and privacy.
32. Danger Room From Wired.com, this commonly unconventional blog covers the current news items on defense. There are also updated articles centering on homeland security showing up repeatedly.
33. Monday (P)review Updated weekly with news in relationship to homeland security, counter-terrorism, and risk management. Devoted to making you aware of the potential trends they may bring to light.
34. Homeland Security Affairs Actually, this blog is an online journal published by the Naval Postgraduate School Center for Homeland Defense and Security. It is updated every month with posts concerned with opinions on homeland security issues to strengthen defense.
35. U.S. Fire Administration Blog The purpose of this blog is to promote issues regarding preparation and response to fire emergencies. The subjects in this blog will frequently relate to homeland security.
36. Evolution of Security This blog of the Transportation Security Administration presents updates on security and technology in the face of increasing terrorist threat.
37. In Homeland Security This non-partisan and non-commercial blog is sponsored by the American Military University. Delivers news and analysis of events relating to homeland security such as, law enforcement, military intelligence, border security, and more.
38. US-CERT These posts are run by the US Computer Emergency Readiness Team. Provides frequent updates of crucial security issues affecting national and cyber security.
39. Leadership Journal This government-sponsored blog from the Department of Homeland Security discusses several topics related to homeland security. A variety of topics such as emergency preparedness, immigration law enforcement, and promoting economic prosperity are discussed.
40. The Homeland Security Blog Founded to give an opening for ideas and discussion on homeland security issues, in particular, to the first responder community. A free resource for first responders and homeland security professionals who are concerned about the topics.
Personal Security (Self Defense)
These blogs have valuable information about personal security that can help you avoid becoming a crime victim. You can reduce the risk to yourself and others by using simple precautions in your daily life.
41. Self Defense Blog for Women A total personal safety blog for women. Articles are thorough and cover the security issues of today’s woman. You will learn a variety of safety tips and practical self defense tactics.
42. TACT’S - Take No Prisoners Blog Written by a bouncer and bodyguard for over 10 years. This blog deals with self defense education, crime prevention & combat tactics for mind, body & spirit.
43. Pepper Spray, Stun Guns, and Tasers… Oh My! These posts are very informative when it comes to personal security. Hear about the latest crime stories and how you can defend yourself in these situations.
44. Crime Information A weblog focusing on self defense and self defense product reviews. Offers crime stories with advice on escaping, and defending yourself against attackers.
45. Personal safety and security secrets This blog offers personal safety tips that you would probably not even think about. A post such as keeping your keys by your bed at night provides you with extra information that just might help you in a dangerous situation.
46. Self Defense for Everyone Offers simple and easy tips for people of all ages when it comes to defending yourself. There are even tutorials for using stun guns, mace, and other personal safety products.
47. Best Stun Gun.com Blog Read the latest news and developments on self defense and personal security in this blog. Its posts are devoted to subjects related to tasers, stun guns, and self defense.
48. Self Defense Sense Provides information on self defense, rape prevention, personal protection, weapons, and sexual assault. Learn tactics that can help you defend yourself and even escape from these violent crimes.
49. Self Defense Products Blog Get reviews on all the latest self defense and security products. Also gives great safety and security tips from dog attacks to home invasions.
50. Prevention Works Sponsored by the National Crime Prevention Council, this blog offers the news and advice on a number of issues relating to violence and crime. Posts are on everything from campus violence to workplace safety.
As you can see, the world we live in is certainly not perfect. Whether or not you think you will be affected by any of these topics discussed, you still should know what to do if the case ever arises. An ounce of prevention can be worth a pound of cure.

Can we improve our memory?

2009-06-09T23:58:00.000-07:00

Yes we can. This article will show at least four ways in which we can do so. But to do this, we must we must first understand how our memory works. Neuroscientists believe that there are two kinds of memory: (1) Procedural; (2) Declarative. Procedural memory involves the storing of skills and habits; Declarative memory involves the storing of facts. The declarative memory can also be called “working memory”, and it is the main focus of this article. So let us examine this form of memory more closely, so we can hit the target with greater success. Declarative memory is made up of two parts: (1) Long- term memory (2) short memory; According to the theory (Neuroscience Primer), long-term memory works as a storehouse for materials that have been practiced and rehearsed. Short -term memory on the other hand, can store only a limited amount of information. It also holds this information for the duration of only a few seconds, or probably for a couple of minutes, at the most; then it begins to diminish.
This is where our conscious effort to help our memory begins: To improve our memory, (1) We must transfer the material in our short- term memory to
the storehouse (the long- term memory). But just how can we do that? Practice and rehearse material previously learned. A simple way to practice/rehearse verbal material is to organize it and place things that are similar into categories, to make it easier for you to recall them. For example: You need to purchase five things at the beauty supply store, but didn’t have the material needed to make up a list. You can put your memory to work by forming one category for– hair products: representing the shampoo and hairspray you plan to purchased; form another category,- cosmetics: for the face cream, liquid toner, and eye shadow that you also plan to purchase. Now rehearse, mentally: speak out loud to yourself, literally repeating the name of the categories as well as the items there - in. This process allows you to transfer the information from short- term to long-term memory. But what about the material that you read/study, how can you transfer this to long-term memory readily?
In addition to the afore-mentioned categorizing of the information, there is a technique called visualization: Make up a mental picture of the material as you read. Let us say that you are studying about memory, the very topic of this article. You are reading about procedural and declarative memory and naturally, you want to remember the difference between the two. Using the visualization technique: You must stop and make a mental picture of the brain; then, split it into two parts. Visualize the procedural on one side, put the declarative on the other side. Now label each part according to how it functions. You can even make up a little jingle such as the following: “proceed with the skill/habit--------and declare the facts/information”. Now, you have just etched in some important facts that will be transferred to your long-term memory; namely: procedural memory involves the storing of skills and habits; and declarative memory involves the storing of facts. Continue this process as you read, stopping at intervals to verbalize and visualize; allowing the material to transfer from short-term to long-term
memory (the store-house). The second way to boost our memory: (2). We must exercise our memory regularly: It strengthens the BOND between the neurons. Neuroscientists have found that neurons communicate with each other. When we stimulate a few of them with a single input, -according to the theory; the communication sparks off billions of (synaptic) impulses. To put it simply, these impulses act as messengers along what is called the axon of the neuron. These messengers travel until they reach a point called their junctions or synapses. At the junctions, there are bulb-like projections filled with neurotransmitters (chemicals). These chemicals take the message across the gap between the neurons, because they do not actually touch each other. The chemicals are like a force of energy, pulling the neurons close together; and they do this by forming a bridge. Then through a complex system of keys and locks, they open and close the way for relaying the message from neuron to neuron. So the more often we recall information learned, the more frequent the pulling process of the neurons occur, and this strengthens the bond between them. This idea can be illustrated further if we compare the mind to a muscle. Exercise helps to build and strengthen muscles, and we can strengthen our memory in the same way through regular exercise. The third way to boost our memory: (3) We must help to cross train our brain: It strengthens the NEUROGICAL CONNECTIONS: It is believed that in the process called memory, the brain uses one hundred billion neurons. But the network formed by these 100 billion neurons is about ten thousand times greater. If we do the math here, we are talking about one hundred billion multiply by ten thousand. But, never should we take the vastness of this network for granted. To maintain this network connection, a neuron has to be used. Otherwise, it withers and cuts itself off from the network. Even though it may not be completely dead in the strictest sense of the expression, the ability to remember becomes harder under the condition, when more and more neurons disassociate themselves through the lack of use. Old age is not an excuse Never should we excuse ourselves, nor put the blame on old age if our memory does not serve us well. The result of much research reveals that remembering what we learn at a very high level can go on well into our sixties; and in many cases into our eighties. One example of this is seen in the case of Vladimir Horrowitz. On his eightieth birthday, he appeared in concert in the Carnegie Hall auditorium playing from memory, a repertoire consisting of some of the most advanced pieces in piano literature. Although this may not be the everyday case, it still shows that the human memory is prodigious. But we must help it to stay in tact and possible expand itself through frequent use, exercise and cross training. Some of the ways in which we can cross train our brain: Some activities are big brainteasers, but if you enjoy doing them, then so much the merrier. Some of these are as follows: learning to play chess, learning to play a musical instrument, learning to play bridge, poetry /creative writing, reading and analyzing novels. Some activities that are softer brainteasers and good focus builders are as follows: the solving of crossword puzzles, doing word searches and sudokus, doodling, playing video games etc. Staying socially active adds coloring / meaning to your life and this helps in stabilizing the neurotransmitters, the chemicals responsible for good brain functions.

LED Technology and Its Effect on US

2009-06-09T23:54:00.000-07:00

The launch of LED technology in the world was a path breaking achievement on part of the researchers who were actively involved in invading those products that were traditionally used for general illumination. The benefits of using LED have also had an impact on the consumers who are now switching to these lights than the conventional light bulbs. Besides, home and office, the traffic signals, port headlamps and flashlights are too using this inexpensive LED technology for better and eco friendly illumination.
This write up highlights some of the benefits as well as developments in the LED technology.
Energy Conservation – This is perhaps one of the most important as well as universally known aspect of LED's. In the electrical hardware industry, LED lighting is known to be representing a fundamental difference in the use of electrical energy for illumination. While incandescent bulbs rely upon a glowing filament for the production of light. The Light emitting diodes bulb on the other hand use all the energy to light up the lamp. Thus saving heat energy. The low cost of maintenance as well as longer shelf life makes this technology a better purchase. In America, where 20% of the energy is consumed in lighting, the LED has proven exceptionally efficient in saving a considerable portion of this energy.
Technology for Replacement – Another pioneer step that has rendered an extra edge to this technology is the option of replacement wherein an another bulb known as CRS MR 16 (produced by CRS Electronics), directly replaces fluorescent tubes without modification to the electrical lighting fixture. This linear tube bulb is also bedecked with the advantage of life expectancy that is beyond 40,000 hours. Another product under this segment is the CRS MR16, that too is capable of saving energy consumption up to 87%.
Expanding Applications – The use of LED's today have not remained confined to home and office where they are known to illuminate the area. In the modern world, their worth is rapidly being realized in many medicinal applications as well. One such use is in the restorative dentistry where blue light emitting diodes are being used for the cure of light activated oral bio materials. In clinical trials conducted by the researchers, it came to notice that a blue light emitting diode (LED) light curing unit (LCU) is capable in the production of equal dental complex depth via a halogen LCU which is adjusted in a manner that gives an irradiance of 300 mWcm–2.
Light emitting diodes are a huge counterpart of the optical and optics components industry. The various researches catering to these LED's, that are still under progress are surely going to give a great impetus to the light industry.

NATIONAL INSTITUTE OF IMMUNOLOGY

2009-06-03T07:16:00.001-07:00

Career Opportunities for Scientists in Life Sciences .........

The National Institute of Immunology, New Delhi, would like to recruit scientists as independent investigators in the biomedical sciences, leading their own groups and responsible for both research projects and teaching. They should be holding Indian citizenship. A demonstrated record of scientific productivity in the form of recent peer-reviewed publications in scientific journals of high international repute and/or internationally valid and productive patents is essential, as is some indication of independence in scientific thinking, and three to four years of post-doctoral experience.The Institute’s primary goal is to gain insights into the immune system and its interplay with disease so as to facilitate the development of new approaches to disease amelioration. Of particular interest will be ideas in analysing the immune system at the level of cellular biochemistry, cell biology, developmental biology, physiology, signal transduction, apoptosis proteomics, structural, chemical and systems biology. Research areas involving host-pathogen interactions, covering the entire range of expertise and interest from the statistical and epidemiological to the cellular and molecular levels will also be welcome.Appointments are offered as Staff Scientists in various grades, which range from those equivalent to university positions of Senior Lecturer or Assistant Professor upwards. Length of experience and the quality of the scientific productivity record will be major factors in deciding the level of appointment as well as the salary offered. Investigators will be provided shared laboratory space and adequate start-up resources. They are expected to generate extramural project based funding. Some housing can be made available for allotment.Interested scientists may send their bio-data containing details of qualification, positions held, professional experience/distinctions and copies of notable publications, and the names, addresses, fax numbers, telephone numbers and electronic mail addresses of three potential referees, to the Director, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi –110067. People working in public sector Institutions within India are requested to have their applications forwarded through proper channels. Only shortlisted candidates will be contacted for further discussions.

2009-05-22T23:41:00.000-07:00

Newtons Law 1.0

JOURNAL SCINENCE

2009-05-21T06:45:00.001-07:00

A peer-reviewed journal publishes articles of significance in all areas of biological sciences in the forms of original research papers, reviews and short research communications.
Recent articles:
THE EXPRESSION OF APELIN AND ITS RECEPTOR APJ DURING DIFFERENT PHYSIOLOGICAL STAGES IN THE BOVINE OVARY Stefanie Schilffarth, Bernadette Antoni, Dieter Schams, Heinrich HD Meyer, Bajram Berisha Int. J. Biol. Sci. 2009, 5: 344-350 [Abstract] [Full text] [PDF]
Modulation of NKT cells and Th1/Th2 imbalance after α-GalCer treatment in progressive load-trained rats Wang Ru, Chen Peijie Int. J. Biol. Sci. 2009, 5: 338-343 [Abstract] [Full text] [PDF]
Identification of candidate genes for congenital splay leg in piglets by alternative analysis of DNA microarray data Steffen Maak, Diana Boettcher, Jens Tetens, Monika Wensch-Dorendorf, Gerd Nürnberg, Klaus Wimmers, Hermann H. Swalve, Georg Thaller Int. J. Biol. Sci. 2009, 5: 331-337 [Abstract] [Full text] [PDF] [PubMed] [PMC]
A male-specific odorant receptor conserved through the evolution of sex pheromones in Ostrinia moth species Nami Miura, Tatsuro Nakagawa, Sadahiro Tatsuki, Kazushige Touhara, Yukio Ishikawa Int. J. Biol. Sci. 2009, 5: 319-330 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Body fat mass reduction and up-regulation of uncoupling protein by novel lipolysis-promoting plant extract Shinobu Mori, Mayumi Satou, Satoshi Kanazawa, Naonobu Yoshizuka, Tadashi Hase, Ichiro Tokimitsu, Yoshinori Takema, Yoshinori Nishizawa, Toshihiko Yada Int. J. Biol. Sci. 2009, 5: 311-318 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Vesnarinone Represses the Fibrotic Changes in Murine Lung Injury Induced by Bleomycin Minoru Inage, Hidenori Nakamura, Hiroshi Saito, Shuichi Abe, Toshihiko Hino, Noriaki Takabatake, Kyoko Terashita, Manabu Ogura, Shuichi Kato, Tetsumi Hosokawa, Makoto Sata, Hitonobu Tomoike Int. J. Biol. Sci. 2009, 5: 304-310 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Old can be new again: HAPPY whole genome sequencing, mapping and assembly Zhihua Jiang, Daniel S. Rokhsar, Richard M. Harland Int. J. Biol. Sci. 2009, 5: 298-303 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Characterization of persistent TTX-R Na+ currents in physiological concentration of sodium in rat visceral afferents Guo-Fen Qiao, Bai-Yan Li, Yu-Hong Zhou, Yan-Jie Lu, John H. Schild Int. J. Biol. Sci. 2009, 5: 293-297 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Responses of Plasma Acetate Metabolism to Hop (Humulus lupulus L.) in Sheep Mohammad Al-Mamun, Kunio Goto, Sota Chiba, Hiroaki Sano Int. J. Biol. Sci. 2009, 5: 287-292 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Serum adipokine levels in the obese people Ilker Tasci, Teoman Dogru, Gokhan Erdem, Serkan Tapan, Cemal Nuri Ercin, Alper Sonmez Int. J. Biol. Sci. 2009, 5: 286 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Correlated alterations in prostate basal cell layer and basement membrane Aijun Liu, Lixin Wei, William A. Gardner, Chu-Xia Deng, Yan-Gao Man Int. J. Biol. Sci. 2009, 5: 276-285 [Abstract] [Full text] [PDF] [PubMed] [PMC]
The Role of SRC-1 in Murine Prostate Cancinogenesis Is Nonessential due to a Possible Compensation of SRC-3/AIB1 Overexpression Jean Ching-Yi Tien, Suoling Zhou, Jianming Xu Int. J. Biol. Sci. 2009, 5: 256-264 [Abstract] [Full text] [PDF] [PubMed] [PMC]
In vivo evidence of hepato- and reno-protective effect of garlic oil against sodium nitrite-induced oxidative stress Hanaa A Hassan, Sherif M El-Agmy, Rajiv L Gaur, Augusta Fernando, Madhwa HG Raj, Allal Ouhtit Int. J. Biol. Sci. 2009, 5: 249-255 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Birth weight and coronary artery disease. The effect of gender and diabetes Maria Banci, Patrizia Saccucci, Alessandro Dofcaci, Ilaria Sansoni, Andrea Magrini, Egidio Bottini, Fulvia Gloria-Bottini Int. J. Biol. Sci. 2009, 5: 244-248 [Abstract] [Full text] [PDF] [PubMed] [PMC]
A Curriculum Vitae of Teeth: Evolution, Generation, Regeneration Despina S. Koussoulakou, Lukas H. Margaritis, Stauros L. Koussoulakos Int. J. Biol. Sci. 2009, 5: 226-243 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Diverse protein regulations on PHA formation in Ralstonia eutropha on short chain organic acids Sung-Eun Lee, Qing X. Li, Jian Yu Int. J. Biol. Sci. 2009, 5: 215-225 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Identifications of SUMO-1 cDNA and Its Expression Patterns in Pacific White Shrimp Litopeanaeus vannamei Yanisa Laoong-u-thai, Baoping Zhao, Amornrat Phongdara, Harry Ako, Jinzeng Yang Int. J. Biol. Sci. 2009, 5: 205-214 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Is sodium current present in human sinoatrial node cells? Arie O. Verkerk, Ronald Wilders, Marcel M.G.J. van Borren, Hanno L. Tan Int. J. Biol. Sci. 2009, 5: 201-204 [Abstract] [Full text] [PDF] [PubMed] [PMC]
BMP-13 Emerges as a Potential Inhibitor of Bone Formation Bojiang Shen, Divya Bhargav, Aiqun Wei, Lisa A Williams, Helen Tao, David D F Ma, Ashish D Diwan Int. J. Biol. Sci. 2009, 5: 192-200 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Association between Apoptotis and CD4+/CD8+ T-Lymphocyte Ratio in Aseptic Loosening after Total Hip Replacement Stefan Landgraeber, Marius von Knoch, Franz Löer, Jochen Brankamp, Michael Tsokos, Florian Grabellus, Kurt Werner Schmid, Martin Totsch Int. J. Biol. Sci. 2009, 5: 182-191 [Abstract] [Full text] [PDF] [PubMed] [PMC]
Developing tTA Transgenic Rats for Inducible and Reversible Gene Expression Hongxia Zhou, Cao Huang, Min Yang, Carlisle P Landel, Pedro Yuxing Xia, Yong-Jian Liu, Xu Gang Xia Int. J. Biol. Sci. 2009, 5: 171-181 [Abstract] [Full text] [PDF] [PubMed] [PMC]

BIOINFO SPECTROSCOPY

2009-05-21T06:41:00.001-07:00

In vivo simultaneous measurement of urea and water in the human stratum corneum by diffuse-reflectance near-IR spectroscopy [registered users only] Urea and water contents in the human stratum corneum were measured coincidentally in vivo after the treatment of urea-containing cream by a Fourier transform near-infrared spectrometer with a fiber-optic probe. [May 4, 2009]
A raspberry flavoured galactic centre with a hint of rum An international team of astronomers has detected two of the most complex molecules yet discovered in interstellar dust: n-propyl cyanide and ethyl formate. The latter gives raspberries their distinct flavour and has a faint rum-like scent. [May 1, 2009]
Infrared monitoring of interlayer water in stacks of purple membranes [registered users only] The thermodynamic behavior of films of hydrated purple membranes from Halobacterium salinarum and the water confined in it was studied by Fourier transform infrared spectroscopy in the 180-280 K range [April 6, 2009]

INFRA-TECH

2009-05-21T06:39:00.000-07:00

Six Sigma, DFSS, and Statistics Training Courses

Our Six Sigma and Design for Six Sigma (DFSS) courses can be taught at your facility or you can attend one of our public seminars. If you do not have an established training office or facility, ask about our turn key training solution which provides a local venue, course registration, course evaluation, and more. For information, contact
'
sales@sigmazone.com
DFSS Executive Overview DFSS Rollout Execution DFSS Green Belt DFSS Black Belt Design of Experiments Introduction to Tools for Data Mining Basic Statistics for Healthcare Professionals Quality Function Deployment (QFD)Statistical Tools and Techniques DMAIC Green Belt and Black Belt Software Training
Design for Six Sigma (DFSS) Executive Overview
Course Overview
Our DFSS Executive Overview is for executives and managers who lead design groups. The course provides an introduction to DFSS and an overview of the methodology. This one day course includes printed course materials.
Course Outline
DFSS Introduction and MotivationIntroduction to IDOVIdentification of Customer and Business RequirementsDesign OverviewOptimization of Key Design VariablesDesign Validation Overview

Design for Six Sigma (DFSS) Rollout Execution
Course Overview
This class is more of a meeting than a course, with the purpose of assisting you in your deployment strategy for DFSS. With your key design leaders, we examine your culture and map out a deployment strategy to take your organizational elements from the start to success.
Design for Six Sigma (DFSS) Green Belt
Course Overview
Our DFSS Green Belt program is a 2 week course which includes printed course materials and the software DFSS XL, DOE Pro XL, SPC XL, SimWare, and Pro-Test. The course was created for design engineers with the simple goal of making them more effective in designing products to meet the customers' requirements.
DFSS Green Belt Course Outline Week 1 - 4.5 Days
Introduction to DFSSObtaining Product RequirementsDesign ScorecardDesign PartitioningPugh Concept Selection and Functional ModelingBrainstormingIdentifying and Controlling Key Design VariablesIntroduction to Axiomatic DesignStatistical Concepts for DesignHypothesis TestingMeasurement System Analysis (MSA)MSA for Design and DevelopmentMSA for Embedded SystemsAttribute MSAGetting Started
DFSS Green Belt Course Outline Week 2 - 4.5 Days
Introduction to RegressionIntroduction to DOERegression AnalysisTwo-Level DesignsThree-Level DesignsDOE SummaryExpected Value AnalysisRobust DesignTolerance DesignBasic Reliability ConceptsValidation Techniques

Design for Six Sigma (DFSS) Black Belt
Course Overview
Rather than a "one size fits all" approach, our DFSS Black Belt course is typically customized for each client to meet their specific needs. We have found that different clients will need different skills depending on their industry and goals.
Example Subjects
Advanced Design of ExperimentsAdvanced Measurement System Analysis (MSA)Optimization of Deterministic Simulators - Nearly Orthogonal Latin Hypercube Sampling - Descriptive Sampling - Latin Hypercube Sampling - Regression in a Deterministic EnvironmentData MiningInnovation TechniquesAxiomatic Design

Design of Experiments (DOE)
Course Overview
Design of Experiments is a 4.5 day course which includes printed course materials and the software DOE Pro XL. The course is targeted to the individual who has no experience in DOE and would like to learn to plan, setup, execute, analyze, and optimize using the powerful tool DOE.
Course Outline
Fundamental ConceptsIntroduction to RegressionIntroduction to DOERegression AnalysisTwo-Level DesignsThree-Level DesignsDOE SummaryMultiple Response Optimization

Intro To Statistical Tools For Data Mining
Course Overview
Many improvement projects are very data intensive and the statistical tools taught in traditional college curricula are often inadequate for solving the problem at hand. While there are many aspects and definitions of data mining, the basic idea is to find patterns in data sets. Although marketed for large databases, the techniques are applicable to any size data set. While data management is an important subject, this course will focus on the statistical models used in data mining. Very little prior knowledge of statistics is needed for this course. The 3-day course takes a very hands-on approach to learning. Participants will learn how to apply the methods via a combination of lecture and working examples using software that runs in Excel. The instructor will make time for one-on-one consulting so participants are encouraged to bring their own data sets to class.
Course OutlineIntroduction to data miningExploring and preparing dataIntroduction to modeling and validationMultiple linear regressionLogistic regressionDiscriminant analysisModel validationNeural networksClassification and regression treesCombining models (bagging and boosting)Cluster analysisAssociation rules
Basic Statistics For Healthcare Professionals
Course DescriptionWith the ever increasing use of evidence based medicine, today's healthcare professionals must be well versed in the use of statistics. This one day course will show participants how to perform and interpret statistical analysis using Excel.
Course OverviewThe need for statisticsStatistical thinkingDisplaying and describing one variableIntroduction to statistical inferenceEstimating means and proportionsComparing two means and variancesCorrelating two continuous variablesComparing two discrete variables
Quality Function Deployment (QFD)
Course Overview
QFD is one of our newest and most sought-after courses. It is a 1.5 day class that includes printed course materials and our exceedingly popular QFD software, SnapSheets XL. The course is designed for marketing members and design engineers.
Course Outline
Motivation and Introduction to QFDHouse of Quality #1 (Kano's Model, Sources of Data, CTQ Development)System Design and PartitioningHouse of Quality #2 (Key Design Variable (KDV) Identification, Controlling KDVs)

Statistical Tools and Techniques
Course Overview
Our Statistical Tools and Techniques course serves as an introduction to basic statistical analysis. The 4.5 day course includes printed course materials and our ever popular software, SPC XL.
Course Outline
Statistical MeasuresCapability IndicesUnderstanding VariationHypothesis TestingGraphical AnalysisControl ChartingMeasurement System Analysis (MSA)

Six Sigma Courses
DMAIC Green Belt (2 Weeks)DMAIC Black Belt (4 Weeks)DMAIC MBB (1 Week)
Software Training
Depending on your needs, we can provide one or two day training sessions for each of our software applications. For more information about any of our course offerings, please contact..........09885504227
'

MICRO PROCESSORES

2009-05-18T07:13:00.000-07:00

microprocessor simulator 8085 for windows

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$10.00

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Microprocessor 8085 Simulator 1.6

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$50.00

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Microprocessor 8085 Simulator 3.0

Utilities -> Misc-Utilities

$50.00

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8085 Simulator 3.0.1

Home-Education -> Science

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8085 Simulator 1.2

Software-Development -> Components-Libraries

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8085 Simulator 1.1

Software-Development -> Misc-Programming-Tools

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Assembler with Microprocessor Simulator 8086 4.04

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Danica Patrick 2009 Calendar for Windows 1.3.9.507

Business-Finance -> Calendars-Planners

$9.95

Commercial Demo

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BatchXSLT for InDesign (Windows) 1100C1

Network-Internet -> Other

$780.00

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Visual Paradigm for UML (SE) [Windows] 6.1

Software-Development -> Tools-Editors

$299

commercial

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Visual Paradigm for UML (PE) [Windows] 6.1

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$699

commercial

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Visual Paradigm for UML (ME) [Windows] 6.1

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Visual Paradigm for UML (CE) [Windows] 6.1

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freeware

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Partition Recovery for Windows 3.5

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QR-Code Font and Encoder for Windows 2009

Business-Finance -> Applications

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Windows Media Bonus Pack for Windows XP

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Visual Paradigm for UML (CE) [Windows] 6.3

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Visual Paradigm for UML (ME) [Windows] 6.3

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Visual Paradigm for UML (SE) [Windows] 6.3

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Visual Paradigm for UML (LE) [Windows] 6.0

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4 G TECHNOLOGY

2009-05-15T06:24:00.000-07:00

Current 3G Mobile Phones
BlueTooth Hands Free and Hands Free Car kits...............

4G I-MODE TECHNOLOGY, JAPAN
In March 2002 NTT DoCoMo announced that trials had begun on the next generation of mobile communications. Dubbed '4G', the new I-mode technology will increase data transmission rates (up to 200 times faster than 2G at 20Mbit/sec). 3G data rates are currently 2Mbit/sec, which is very fast compared to 2G's 9.6Kbit/sec. 4G builds on the 3G standard, although it integrates and unifies the different interfaces (W-CDMA, CDMA2000, EDGE, etc). ....................

4G I-MODE TECHNOLOGY
Since December 2000, NTT DoCoMo and Hewlett-Packard have been jointly developing the software and hardware that make high-speed wireless possible. In October 2001, 3G was successfully rolled-out in Japan, and the new technology will depend on using the established base stations and mobile station equipment. The introduction of 3G technology provided a huge expansion in mobile capacity and bandwidth, and 4G will do the same for the spectrum of broadband communications.
4G TECHNOLOGY CONCERNS
Debate about the new technology has been rife, as the success of 3G has been questioned in both Europe and the USA. One of the main concerns about 4G is that the speed of the frequency suggests that it will experience severe interference from multi-path secondary signals reflecting off other objects. There have been a number of proposed solutions, including using a variable spreading factor (VSF) and orthogonal frequency code division multiplexing (OFCDM).
Other concerns involve cost and the compatibility of various applications, although these are expected to be ironed out in the coming months. For example, FOMA-enabled videophones cannot be used for I-motion music and video links; and the N2002 handset erases parts of the phone's memory if certain websites are accessed. Finally, the cost of I-mode mobile phones is too high for most users, therefore the technology will probably be consigned to corporate use for the foreseeable future.
It is suggested that 4G technologies will give way to 3-D virtual reality and interactive video/ hologram images. 4G will increase interactions between corroborating technologies, so that the smart card in your telephone will automatically pay for goods as you pass a linked payment kiosk - or will tell your car to warm up in the morning, because your phone has noted you leaving the house or setting the alarm.
4G is expected to provide better-than-TV quality images and video-links, although it is likely that forecasts will change as customer demand develops over time. The communications model has developed new versions of HTML, Java, GIF, HTTP and many more. It is expected that new standards will need to be developed for the use in 4G.
JAVA-BASED I-MODE PROGRAMS
Variants of Java-based I-mode programs, include the i ƒ¿ppli, which downloads maps and displays charts of online information. It also enables remote users to receive automatic notifications of weather, traffic, appointments, etc. both online and from a company intranet. The main bonus for users of the software is the additional security encryption, which makes it suitable for e-commerce and mobile banking. This system was developed in conjunction with Sun Microsystems.
It is expected that DoCoMo will roll out the 4G technology platform across Japan in 2006. Other major telecoms operators, such as Ericsson, Lucent and Nokia are researching 4G technology, and in Summer 2002 are expected to begin practical evaluations. These will test data transfer speeds of up to 260 times faster than the current 3G network.

4 GENERATION

2009-05-15T06:17:00.000-07:00

4G Technology

Some possible standards for the 4G system are 802.20, WiMAX (802.16), HSDPA, TDD UMTS, UMTS and future versions of UMTS and proprietary networks from ArrayComm Inc., Navini Networks, Flarion Technologies, and 4G efforts in India, China and Japan. The design is that 4G will be based on OFDM (Orthogonal Frequency Division Multiplexing), which is the key enabler of 4G technology. Other technological aspects of 4G are adaptive processing and smart antennas, both of which will be used in 3G networks and enhance rates when used in with OFDM. Currently 3G networks still send there data digitally over a single channel, OFDM is designed to send data over hundreds of parallel streams, thus increasing the amount of information that can be sent at a time over traditional CDMA networks.

The 4G data rates will vary depending on the number of channels that are available, and can be used. The channels that can be used will be cleaner thanks to technologies like adaptive processing, which detects interference on a channel and improves reception by actively switching channels to avoid interference. 4G networks will also use smart antenna technology, which is used to aim the radio signal in the direction of the receiver in the terminal from the base station. When teamed up with adaptive techniques, multiple antennas can cancel out more interference while enhancing the signal. The 4G plans are still years away, but transitioning from 3G to 4G should be seamless for customers because 4G will have evolved from 3G. Users won't even have to get new phones. Digital applications are getting more common lately and are creating an increasing demand for broadband communication systems. The technical requirements for related products are very high but solutions must be cheap to implement since we are essentially talking about consumer products. For Satellite and for Cable; such cost-efficient solutions are already about for the terrestrial link (i.e. original TV broadcasting) the requirements are so high that the 'standard' solutions are no longer an option. Orthogonal Frequency Division Multiplexing (OFDM) is a technology that allows transmitting very high data rates over channels at a comparable low complexity. Orthogonal Frequency Division Multiplexing is the choice of the transmission method for the European digital radio (DAB) and Digital TV (DVB-T) standard. Owing to its great benefit’s OFDM is being considered for future broadband application such as wireless ATM as well.

How OFDM works?

First of all the FDM part - Frequency division multiplexing is a technology that transmits several signals at the same time over a single transmission path, in a medium such as a cable or wireless system. Each signal is transmitted inside its own unique frequency range (the carrier frequency), which is then modulated by the data that is needing to be transmitted. Orthogonal FDM's spread spectrum technique spreads the data over a lot of carriers that are spaced apart at precise frequencies. This spacing provides the "orthogonality" in this method which prevents the receivers/demodulators from seeing frequencies other than their own specific one. The main benefit of OFDM is high spectral efficiency, but with OFDM you also get; high resiliency to RF interference, and the multi-path distortion is lower. This is handy because in a standard terrestrial broadcasting situation there are high amounts of multipath-channels (e.g. the signal that was sent arrives at the receiving end using multiple paths of different lengths). Since the various versions of the signal interfere with each other, known as inter symbol interference (ISI) it becomes incredibly hard to extract the original information.

APPLE I HONE VIDEO WATCH MY DEAR FREINDS

2009-05-09T00:15:00.001-07:00

FRONT PAGE

2009-05-08T23:58:00.000-07:00

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Telecom Specialist Explanation of Mobile Technologies

F-OFDM (Flash-OFDM)
Clear CinCom is one of the first consultancy firms to work with Flash-OFDM. This fourth generation technology is based on the 802.20-standard and allows for true mobile broadband on the 450MHz band. Because it is 100 percent IP based, an upgrade to Flash-OFDM does not require changes to the existing host/client infrastructure. Flash-ODFM is a vast improvement over WiMax, in that it allows for true mobility and handoff. It is better than 3G UMTS, allowing seamless coverage and large cells. Other than satellite technology, uplink connections are not an issue and mobile connections are suitable anywhere, including indoors and in tunnels.
GSM
GSM stands for Global System for Mobile Communications and is the world standard for mobile telephony. Because it offers digital quality, it is considered a second generation (2G)-standard for telephony that can be complimented with various protocols for wireless data transmission. GSM is under constant development. Recently this has led to additional protocols offering packet data capabilities (GPRS) and high-speed data transmission capabilities (EDGE). Different continents use different frequency standards for GSM-telephony. The most important ones are the 900 and 1800 bands, the standard in Europe and most other continents. North and Central America use the 850 and 1900 bands.
GSM-R, or GSM-Rail
Built on GSM-technology, GSM-R is a secure platform for voice and data communication for railway security, services and communications. It is used as a layer on which security and train tracking applications run, as well as video surveillance, passenger information systems and cargo tracking. GSM-R is the standard for wireless railway communications in Europe, Asia and North-Africa, replacing dozens of legacy standards in use prior to the development on GSM-Rail.
UMTS
UMTS is a third generation technology for mobile telephony. An alternative for the GSM-standard, it offers high-speed data transfer capabilities (with a theoretical speed of up to 14 Mbit/s) and is often used for applications such as mobile video, video conferencing and high-speed Internet access.
GPRS
GPRS or General Packet Radio Service is often described as a second-and-a-half generation technology, adding mobile data services to the GSM-standard. Unlike previous technologies, GPRS allows for billing by the volume of data transferred rather than the typical charge-per-minute of traditional GSM-technology. This makes GPRS suitable as the underlying protocol for WAP access, SMS and MMS applications as well as for Voice over IP (VoIP)-services delivered to mobile devices.
EDGE
Enhanced Data rates for GSM Evolution (EDGE), also known as Enhanced GPRS (EGPRS), improves data transfer speeds and reliability. Like GPRS, EDGE is packet-switching technology that allows service providers to charge by the volume of data rather than having per-minute connection fees. EDGE is generally used for delivering multimedia services to mobile devices.
HSDPA
High-Speed Downlink Packet Access (HSDPA) is a third generation protocol building on the UMTS-standard. It allows for higher data transfer speeds. It requires nothing but a relatively simple software upgrade of existing UMTS-networks to allow for HSDPA-communications.
WiMax
WiMax or WirelessMAN is a technology allowing for last mile connections to broadband Internet services. It thus provides a wireless alternative for cable or DSL-based broadband connection. It is widely used to connect Wi-fi-hotspots to one another. WiMax is a standard that replaces many propriety 'fixed wireless technologies' that provide broadband access. The people at Clear CinCom have experience working with WiMax and its predecessors, such as LMDS, since 2000.
Wi-fi
Wi-fi is a branded name for applications making use of the underlying IEEE 802.11-technology. Originally developed for wireless LAN and Internet access in mobile devices such as laptops and PDA's, wi-fi is now used for connecting many devices, including televisions and digital cameras. New applications are under way, allowing wi-fi to be used in cars and intelligent transport systems, to increase safety and to gather statistics.
RFID

2009-05-08T23:32:00.001-07:00

REVENUE SHARES ON ADSENSE

2009-05-08T23:18:00.000-07:00

Tips for Maximizing Your Google AdSense Revenues.....................

Despite what you may hear, the Google AdSense program is not for everyone. There are some types of web sites that do poorly no matter how hard the owners try, and there are others that should be doing well but the webmaster simply isn't putting in the effort to make things happen.
Here are some tips to make AdSense work better for you. If you do them all and you're still not having any luck, then you just might be running one of those sites that don't make money
1. rming sites fall into one of these categories:
? Sites where users go and expect to buy something while they are there. E-commerce sites fit the bill here.. Determine if your visitors are "in the mood"
Like I mentioned at the top of this article, some web sites just don't work with pay-per-click programs. The best perfo
? Sites where users go to find specific information on something that they want to buy now. Music and video review sites, vacation information sites, resume building sites, etc. You don't have to actually be selling these types of things; your site can just be a mecca for information pertaining to these things. Then, when the visitor comes to read your content, they are more likely to click on your ads.
? Sites where people who have disposable income and a credit card like to visit. This includes sites with money management, investing and lifestyle content.
? Sites that draw a large amount of new users every day. Free coupon sites and "How to" sites are good examples.
? Sites where people go who expect to read ads. Classified ads and shopping comparison sites fit into this category.
2. Make sure that your visitors don't feel that you just want to grab their money
Give them plenty of relevant and well-written content. If writing isn't your best skill then hire someone to do it for you. Good content brings steady traffic and steady traffic pays the bills.
3. Play by the rules
Google has some very specific Terms of Service (https://www.google.com/adsense/policies) for participating in their AdSense program. Learn those rules and follow them so you don't lose all of your investment by getting shut out.
4. Use the tools that Google gives you
Google gives you tools for determining the best keywords for your site, measuring ad performance, and setting up different ad "channels" for fine-tuning ad results. These guys and girls are the 800 lb. Gorillas in the Pay-Per-Click market. They didn't build these tools just to keep their programmers busy. Take advantage of their knowledge for they are very big and you are not!
5. Tweak, fine-tune and then tweak again
You should never be happy with your AdSense performance. If it's good, then you need to make it great. If it's great then you need to make it amazing. If it's amazing then you need to take it to the UPS club. The UPS club? Google sends all checks over $10,000 per month to the webmaster via UPS overnight delivery. Now there's a club that I wouldn't mind belonging to.
6. Get more traffic
No matter how much traffic you have, you need more. More eyeballs translate to more clicks. Even if you're only pulling a 2% click-through. That's a lot of clicks when you have thousands of visitors each day.
7. Experiment with new keywords
New keywords can bring new ads and new eyeballs along with it. Set up some new pages on your site and experiment with different content. Once you get something that's working then refer back to Tip # 5.
You can see results in near real time when you use Google's AdWords. Don't be afraid to be different. If something that everyone else is doing doesn't work for you, then invent something that does work and get it on your site.
Diane provides marketing and internet profit tips. For more Google AdSense tips, visit http://www.adsense.deeljeabiz.com/

More.....

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Google Adwords Guide I
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7 Great Ways to Lose Your Shirt Using Google Adwords!
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Adsense-ble, Or The Art Of Promoting, Without Promoting
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How to Waste Money and Annoy Potential Customers
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So You Want Big Profits From Your AdWords PPC Advertising Campaigns?
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Campaign Strategy for Paid Placement
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Three Google Adwords Secrets for Massive Online Profits
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Broad, Phrase, Exact, Negative - Four Google AdWords Terms You Must Know for Advertising Success

EARN HANDSOME MONEY BY ADSENSE BY DAILY 2HRS

2009-05-08T08:36:00.000-07:00

HELLO MY DEAR FRIEND YOU CAN HANDSOME MONEY THROUGH GOOGLE ADSENSE.IT WAS AN JUST PART TIME EARNING SYSTEM SO Y CANT UYOPU JOIN IN THIS PRO GRAM............. LEARN MORE FROM ME ...................ANISH 9985377734

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Learn the secret methods to boost your adsense earnings overnight Most webmasters know that Adsense generates a sizeable source of additional advertising income. That is why most of them use it to go after high paying keywords. They have with them the lists that tells what the keywords are and have already used various methods of identifying them. And yet, after putting up these supposed-to-be high paying keywords into their pages, the money they expected to come rolling in is not really coming in.
Real source to educate you to save yourself from google click fraud punishment Many web site owners are getting their Google Adsense account terminated when they have done nothing wrong to deserve the punishment. Considering the money that they are getting from Adsense, they would certainly want to get back into it.
Most webmasters know that Google Adsense generates a sizeable source of additional advertising income There is nothing wrong with visiting other websites to see how they are going about maximizing their site navigation. "Hot pages" or 'Most read" lists are very common and overly used already. Get to know the ones that many websites are using and do not try to imitate them.
Adsense is Google's Advertising Innovation For Website Developers There's a report circulating on the Internet that the 'glory days' of Google Adsense are over -- because of a simple anti-website-publisher change that Google made to its Adwords program earlier this year.
The other roads Of Google Adsense Ever since the Google grand slam on affiliate marketing which basically paralyzes a lot of landing pages and their subsequent "commitment" to ensure that surfers and adwords advertisers have "good" experience using google by forcing up to 10x times the cost of per click (my personal experience is 16.18 per click), a lot of marketers is forced to relook at their marketing channel. In addition, there is this big sue against google for click fraud which google paid a small token somewhat in ...
With Google Adsense earnings, the possibilities are limitless. With Google Adsense earnings, the possibilities are limitless. Yet there is also the possibility of someone taking advantage of the easy money process that this internet marketing is doing. If you think more about it, these negative factors may force Google to break down and thrash Adsense in the process. If that happens, people would have to go back to the old ways of internet marketing that does not make money online as easy as Adsense earnings.
Google Adsense Profits Mixed In With Affiliate Marketing Are you a webmaster who needs funds to keep your website running? Or is your website the only way for you to earn income? Whichever you are, for as long as you are a webmaster or a web publisher and you need cash, affiliate marketing may work well for you. With affiliate marketing, you may get a lot of cash pouring into your bank account easily. And if your website is rich in great contents and you want to earn more profit, why not get into the Google Adsense program as well?
AdSense is Stupid When... There are times Google's heralded ad affiliate program isn't in your long term business interest. Oh no I said it!
5 Ways To Improve Your Adsense Earnings If webmasters want to monetize their websites, the great way to do it is through Adsense. There are lots of webmasters struggling hard to earn some good money a day through their sites. But then some of the â€œgeniusesâ€ of them are enjoying hundreds of dollars a day from Adsense ads on their websites. What makes these webmasters different from the other kind is that they are different and they think out of the box.
2 Surefire Ways To Maximize Your Adsense Earnings Most webmasters know that Adsense generates a sizeable source of additional advertising income. That is why most of them use it to go after high paying keywords. They have with them the lists that tells what the keywords are and have already used various methods of identifying them. And yet, after putting up these supposed-to-be high paying keywords into their pages, the money they expected to come rolling in is not really coming in.
The Basics On How TO Start Making Money With Adsense Adsense is considered as one of the most powerful tool in a website publisherâ€™s arsenal. It enables a person to monetize their sites easily. If used properly, it can generate a very large and healthy income for them. However if you are not using them rightly and just maximizing the income you squeeze from it, you are actually leaving a lot of money on the table. Something all people hate doing.
Who Else Wants To Make Money With Adsense? Fact number 1: Kids in high school are making thousands of dollars every month with Adsense.Fact number 2: Housewives, retirees, mom and dads, who are just staying at home and have never made a dime on the internet have created full-time incomes by simply placing Adsense ads on their web site or blog. These are just some of the â€œsuper Adsense earnersâ€. You may have already heard about their story for they are among the few who are on their way to making millions worth of cash just ...
Google Adsense Policies Google Adsense is a program that allows businesses to advertise on other websites. They business only pays the host website when a consumer clicks on the link to take them to their website. This is a very effective way of advertising because of the millions of people who access the internet every day. It is also a low cost marketing method that businesses of all sizes can benefit from. Websites are eager to host advertisements for other businesses because it doesnâ€™t cost them anything and ...
The Great Adsense Blend.. Adsense is a wonderful opportunity for you to generate additional income for your website. It doesnâ€™t cost you anything is the best part! Adsense is also very simple. You have to complete an application with Google and be accepted to host advertisements for other businesses. Then you simply add lines of code to the html on the pages of the website where you are willing to have advertisements. With that all in place, how do you blend the Adsense Ads into your website so they donâ€™t stick out ...
Google Adsense Advertising Policies Google Adsense is a program that allows businesses to advertise on other websites. They business only pays the host website when a consumer clicks on the link to take them to their website. This is a very effective way of advertising because of the millions of people who access the internet every day. It is also a low cost marketing method that businesses of all sizes can benefit from. Websites are eager to host advertisements for other businesses because it doesnâ€™t cost them anything and ...
Myth: Google Is Trigger-Happy At Banning Adsense Plublishers There is a common complaint among webmasters Google is trigger-happy at banning Adsense publishers who violate their Terms Of Service (TOS), and often without warning.
Google Adsense and How You Can Earn More From Adsense Ads Any web site owner or webmaster who is trying to earn a profit from their sites are likely familiar with Google Adsense.
5 Ways To Increase Your Adsense Earnings If webmasters want to monetize their websites, the great way to do it is through Adsense. There are lots of webmasters struggling hard to earn some good money a day through their sites. But then some of the â€œgeniusesâ€ of them are enjoying hundreds of dollars a day from Adsense ads on their websites. What makes these webmasters different from the other kind is that they are different and they think out of the box.
Adsense Makes No Sense To Me You wonâ€™t find any Adsense ads on my website. Yes, Iâ€™ve read about the apparent â€œdeath of Adsenseâ€ and my inbox has been stuffed with claims and counter claims about the value of this product or that strategy. . But that is not the reason.You see, I am a writer. I love nothing more than to research and write material on the area of my passion. In fact I have devoted my life to that very thing. Other than a bit of housework and meal preparation in support of my ...
The Google Adsense Template Phenomenon For many affiliate marketers, Google Adsense templates are a god-send. In fact, they are now realizing that good money is made from this source of revenue. Try the simple mathematical computation of multiplying those clicks for every page on your website and you get a summation of earnings equivalent to a monthly residual income with that little effort you have made.
Tips For Maximum Adsense Content Relevancy One of the most essential aspects of getting the most out of your involvement with Googleâ€™s Adsense program is to be certain that Google serves up the most relevant ads possible on your site. The concept is easy to grasp--visitors travel to your sites in search of certain content on their topic of interest. If they see advertisements directly related to those content desires, they are far more likely to click on the ads than if they encounter only tangentially related material or, in a worst ...
Making Adsense Work In The Smart Pricing Era Smart pricing has changed Adsense. Publishers are seeing lower per click payouts and are lamenting the inability of their old methods and systems to produce a profit under the current circumstances. The old guard of Adsense gurus, meanwhile, continues to hold tight to a perspective born before smart pricing became a reality. They continue to encourage new publishers to follow their methods for Adsense success. Others have overreacted, announcing that Adsense is no longer a viable moneymaking ...
How to Avoid Having Your AdSense Accout Banned for Click Fraud If you trawl through the AdSense message boards you canâ€™t help but come across tales of woe from AdSense publishers that have had their account banned by Google.
Hey, Merle...'Are the Good Times Really Over For Good' for Google Adsense? There's a report circulating on the Internet that the 'glory days' of Google Adsense are over -- because of a simple anti-website-publisher change that Google made to its Adwords program earlier this year.
How Much Does Your Google Adsense Really Make Since its introduction in 2003, the Google Adsense program has greatly help bloggers defray hosting charges and other costs related to running blogs. Blogging can be very expensive especially when you have high levels of traffic and numerous pages. Many are turning to Google Adsense to generate some revenue from their blogs and whatâ€™s more, earn some extra on the side.
7 AdSense Tips for WordPress 1. Blend in your ads The most important thing to achieve is blending in your ads. Make sure the ads become a part of your content.This is important because your visitors are used to ignore banners, buttons etc. Therefor you should avoid using the 468X60 banner with borders and image ads on; people will recognize this as one of those annoying banners and ignore it. Match the colors of your ads to the ones you use on your website: Choose the same background, text and link color ...
9 Google Adsense Placement Recipes ABOVE THE FOLD, BELOW THE TITLE Ingredients: 1 Medium Rectangle (300 x 250) Text Ads or 1 Square (250 x 250) Text Ads or 1 Large Rectangle (336 x 280) Text Ads or Banner (468 x 60) Text Ads How: Place one of the above Google Adsense Ads at the beginning of your article, just right below the title. AT THE END OF AN ARTICLE Ingredients: 1 Medium Rectangle (300 x 250) Text Ads ...
How to Increase Your Google Adsense CTR This is the first part of two series of articles about How to Increase Your Google Adsense CTR. Many people think that they just have to copy and paste Google Adsense code into their website and start earning a huge amount of money from it. What a huge mistake! I also thought the same way two years ago. Later I realized that without optimization, that's impossible. Here I will share all of the tricks to increase my Google Adsense CTR that I found within the last two years.
Top 10 AdSense Tricks To Boost Your Commission Google AdSense is fast becoming the preferred way for people to earn an income online. Forget eBay and multiple affiliate programs. Whether you are a work-at-home mom trying to make a little extra cash or an Internet entrepreneur with hundreds of monetized websites, AdSense is truly the easiest way to earn money. Simply sign up for a free account, grab your ad code and paste it in your site. But here's the amazing thing - no matter how much money AdSense is making for you right ...
Making Adsense work in the smart pricing era Smart pricing has changed Adsense. Publishers are seeing lower per click payouts and are lamenting the inability of their old methods and systems to produce a profit under the current circumstances. The old guard of Adsense gurus, meanwhile, continues to hold tight to a perspective born before smart pricing became a reality. They continue to encourage new publishers to follow their methods for Adsense success. Others have overreacted, announcing that Adsense is no longer a viable ...
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ABOUT GOOGLE ADSENSE PROGRAMMES

2009-05-08T08:29:00.000-07:00

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engadget i mobile

2009-05-08T07:49:00.000-07:00

Nokia confirms North American 5800 3G reception issues have been fixed It's official: Nokia has a fix. It seems that a "configuration change" -- which we're assuming means a software-based setting of some sort -- was responsible for the 3G disaster on the first batch of North America-spec 5800 XpressMusics to hit the market, and the company has been able to fast-track a new firmware (not a common occurrence for those guys, but clearly, time was of the essence here). Revised units will be on sale "shortly," while existing owners are being asked to call Nokia's customer care, or alternatively, they can step into a flagship store to have their device exchanged. Too bad we can't update these things ourselves, but at least we get the pleasure of unboxing it all over again, eh? Follow the break for the full statement.
"Following the introduction of the Nokia 5800 XpressMusic in North America, some consumers reported difficulties connecting with the local 3G network. As customer satisfaction and product quality are a priority for Nokia, we took immediate action by temporarily suspending sales and moving quickly to identify the root cause and resolution.We have concluded this was an isolated situation related to a configuration change in the North American variant. We have now adjusted the configuration and will resume sales shortly. Those few customers of the Nokia 5800 XpressMusic who experience a 3G signal issue are advised to contact Nokia Customer Care. Our sincere apologies for the inconvenience."

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2009-05-04T08:34:00.000-07:00

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2009-05-04T08:26:00.000-07:00

Introducing iPhone 3G. With fast 3G wireless technology, GPS mapping, support for enterprise features like Microsoft Exchange, and the new App Store, iPhone 3G puts even more features at your fingertips. And like the original iPhone, it combines three products in one — a revolutionary phone, a widescreen iPod, and a breakthrough Internet device with rich HTML email and a desktop-class web browser. iPhone 3G. It redefines what a mobile phone can do — again.

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