5:00 AM - September,10 2009

Colleen Morrison

5:00 AM - September 3, 2009

Africa: Fear Helps to Increase HIV Infections

Takeru V. Maeda

5:00 AM -August, 6 2009

with the second largest populated continent in the world -- it's preventing Africans from learning about HIV.


Harassment and isolation is a social norm for many countries in Africa , since many feel it is unnatural for men -- and women -- to engage in same-sex relationships. Homosexuals in these countries have found ways to group together and still, partially, live the lives they desire. Some are able to get away with living double lives; marrying, having children, etc. and then have another life which is partially spent with a gay partner. However, because of the harassment and isolation that is bestowed upon these gay men and women, many of them shy away from finding or reaching out to help groups or education classes on HIV prevention.


According to George Kanuma -- a gay rights activist in Burundi  -- many gay men know that they can contract the disease by having sex with a woman but they do not know that they can still contract diseases with men just the same as with women.


The research in AIDS in Africa have been somewhat minimal since not many homosexuals feel confident enough to come out of their 'hiding' in fear of facing personal turmoil with other members of their village or town. Because of this hostility toward the gay community, which leads to their sap in confidence, researchers fear that research will grow at a glacial pace and there won’t be much of an adequate response should the number of infections grow worse.


Many largely populated areas in these African countries still strive to bring education for those uneducated in the disease and how to prevent from contracting it and from infecting others. These special groups aim to sensitize and train those with the infection, providing the basic understanding of prevention as well as replenishing their confidence in life.

As more traditional nations, like India, Thailand, and Vietnam, are accepting the homosexual population and granting them civil liberties, there still lies the concerning issue of homophobia

5:00 AM -August, 20 2009

you salvage your computer's hard drive, and unless you are in a high-risk group, you can stay in bed and drink lots of clear liquids to treat your flu.

The virus that causes HIV disease is not so easily managed, however. In fact, it presents a much more daunting challenge.


A wicked virus


Individuals infected with the HIV virus face a lifetime of medical care and pharmaceutical treatment because the virus has a clever genetic code that lets it lay low and remake itself over and over again in a new form.

This trait helps it resist long-term treatment and eradication, and it's not uncommon for a patient to change drug combinations, or "cocktails" more than once. Recently, however, researchers at theUniversity of North Carolina at Chapel Hill reported that they have cracked the genetic code for the virus, which may help the health care community to engineer more effective prevention and treatment.


The unique morphing qualities of the HIV virus have defied the medical community for decades, and it is too early to know the ultimate impact of the genome research. The UNC team plans to use their new-found information to force mutations on the virus in an attempt to disrupt its normal processes. HIV experts agree that any addition to their understanding of the virus can only help with future attempts to prevent infection and treat the disease.


HIV virus and HIV disease


The HIV virus is most commonly spread through unprotected sexual contact, drug users' shared needles, and from mother to newborn during labor, delivery or nursing. Once the initial symptoms of infection have passed, the virus may remain dormant in a person's body for as long as a decade before presenting symptoms of the disease. HIV disease, or AIDS (acquired immunodeficiency syndrome) damages the body’s immune system.


The United Nations Joint Program on HIV/AIDS reported that in 2007, more than 33 million people across the globe were living with the HIV virus, including over 2 million children worldwide.  In that year, estimates suggest that 2 million people were newly infected, while 1.7 million died from HIV disease, including 290,000 children.

A virus can be an insidious thing -- it will sneak up on you when you're not expecting it and make its way into small, hidden places where it proceeds to cause mayhem and sometimes death. It's as true of a computer virus or the H1N1 influenza virus as it is of the virus that causes HIV disease. Here's a difference, though: a technology wizard may  be able to help

Colleen Morrison

Genome Researchers Take a Look at HIV 

Colleen Morrison

5:00 AM -August, 6 2009

The untimely death of musician Michael Jackson provided yet one more demonstration of the ways in which misuse of prescription medications can go horribly wrong. New research

suggests that sometimes, even appropriate use of some medications over a long period can have bad consequences. At issue are the stimulants used to treat patients who suffer from attention deficit-hyperactivity disorder (ADHD).


Taking the Bounce Out of Children


Not so very long ago, news outlets carried stories about over-prescribing and misuse of the stimulant Ritalin - in this case, however, many of the patients taking the drug were too young to know or care about any negative impact. Often, parents elected to treat their lively young children on the premise that they suffered from a medical condition (rather than youthful enthusiasm). Well-meaning doctors were happy to oblige and began prescribing Ritalin.


Like other medications used to treat ADHD, Ritalin acts to stimulate the central nervous system by changing the brain's chemistry. Now, however, a small group of new studies suggest that continued long-term use of stimulants like Ritalin may cause serious problems for patients who take them. In particular, it can lead to increased levels of anxiety, depressed mood, and an impaired ability to learn. And those are just the findings from animal studies; human studies indicate the drugs may actually hamper a child's ability to grow physically.

Hooked on Ritalin


And there is something else about Ritalin that many parents may not know: the drug is a Schedule II controlled substance, meaning users may become addicted. As doctors handed out prescriptions for Ritalin to more and more patients, the drug has become fairly easy to obtain, through both legal and illegal means. Used inappropriately, self-medicaters can, and do, become hooked on it for the euphoric feeling it delivers. In addition, the drug suppresses appetite, encouraging some individuals to use it to control their weight, while still others claim it improves their concentration during finals week.


The medical community does not suggest that stimulants used to control ADHD and other medical conditions are bad. On the contrary -  many people find their lives greatly improved when they use the medications as prescribed. Scientists are suggesting, however, that we look more closely at the long-term effects of altering the way the brain works so we don’t make patients worse off than they were before treatment.

ADHD Treatment -- Cure or Curse?

Colleen Morrison

Standard for Who?

The problem with BMI, however, as with many such standard measurements, is that each of us comes with unique packaging that frequently defies strict categorization. When it comes to BMI and people of South Asian descent, that seems to be the case. According to health officials inIndia, the measure should be revised to reflect genetic differences that can lead to serious health issues if not addressed.

Body mass index calculations were developed using data from Caucasians, and according to those calculations, BMI of 25 suggests a patient is overweight, over 30 suggests obesity. Indian officials recently lowered those measures to 23 and 25, respectively, for South Asians to reflect differences in the two groups' genetic makeup.

Genes Make a Difference

Studies suggest that South Asians may carry a gene that makes their bodies store body fat around their mid-sections, a situation that is associated with diabetes and heart disease. This means that, even though a person may not appear to be significantly overweight, just carrying a little excess around the tummy, he or she may be at risk for developing cardiovascular disease.

Health care professionals around the globe are turning to new measures to help identify persons of South Asian descent whose weight may be a threat to their health. In the UK, physicians use a survey tool, Qrisk2, to evaluate an individual's risk. At the Palo Alto Medical Foundation, physicians use a modified BMI calculator tool. In both cases, the goal is to help patients recognize the potential health risk associated with their weight.

The American Heart Association identifies obesity, especially body fat around the middle, as a major factor for heart problems, including heart attacks. In addition, patients who are obese may suffer from high blood pressure and diabetes, a combination that can be deadly. Yet the cause of obesity is usually fairly straightforward and preventable; an obese person takes in more calories than her body needs. One solution, equally straightforward, is to manage diet and exercise in consultation with a physician.

Fitness and medical professionals consider Body Mass Index (BMI) to be something of a standard in determining the state of a patient's overall health; based on our height and weight, the calculation can suggest how much body fat each of us is carrying, and as a result, what kind of load we're putting on our heart and vascular system.

South Asians Need More than BMI Calculator

5:00 AM - July 23, 2009

 

 

 

 

vehicle launched by the Indian Space Research Organization (ISRO) in October 2008.

A mission to know the moon

Despite previous visits, there are still many things about the moon that remain a mystery; as with past moon missions, the spacecraft's primary purpose was to collect data to add our knowledge about the moon. The Chandrayaan-1 project was conducted entirely under the auspices of the Indian space agency, although a number of space organizations from around the globe placed instruments and experiments on board to participate in this most recent endeavor to study Earth's sole natural satellite.

Despite the fact that ISRO lost communication with its moon probe on 29 August after 312 days in orbit, the vehicle's mission has enjoyed a number of successes. One instrument on board, the Moon Mineralogy Mapper (M3), has already demonstrated high levels of iron-bearing minerals on the moon. The device's imaging spectrometer is designed to map the moon's surface and return information that may help explain the origin of the moon and the Earth itself. In addition, the spacecraft transmitted tens of thousands of photographs of the moon for future analysis.

The lessons of Chandrayaan-1

The agency's chairman, G. Madhavan Nair, is justifiably proud that his organization put a vehicle into moon orbit at a very low cost: Chandrayaan-1 cost approximately $100 million, compared to the billions that are usually spent on American space launches. Officials at the ISRO say the mission will provide a tremendous amount of information for the amount spent on it, making it an incredibly cost-effective project.

The Indian Space Research Organization was established in 1969; the agency has plans for additional projects, research and missions to the moon and Mars that should ultimately set it up to become a partner in the International Space Station.

The history of man's physical journey into space began on 4 October 1957, when the formerSoviet Union successfully launched the first successful artificial Earth satellite, Sputnik. News of a small, unmanned space vehicle circling overhead somewhere put new urgency on the nations of the world to move ahead with their own programs for space exploration. Within the year, the US Congress wrote legislation that created NASA, the National Aeronautics and Space Administration, to conduct peaceful activities in space "for the benefit of all mankind."*

*"National Aeronautics and Space Act of 1958," Public Law #85-568, 72 Stat., 426. Signed by the President on July 29, 1958, Record Group 255, National Archives and Records Administration, Washington, D.C; available in NASA Historical Reference Collection, History Office, NASA Headquarters, Washington, D.C.

The novelty and daring of mankind's earliest efforts to hurl men and machines into space were guaranteed to grab the world's attention and hold on to it. Today, however, we have become so accustomed to lift-off, space walks, and other works of scientific magic that they receive very little notice. Such has been the fate of the Chandrayaan-1, the moon probe

Colleen Morrison

India Greets the Moon with Chandrayaan-1
 

Rock-a-bye baby


Sleep is a natural part of every human's daily biological rhythm. Cycles of daylight and darkness influence our wake and sleep patterns. It’s common knowledge that humans need sleep to survive, and that pretty much sums up the depth of what we know with certainty about sleep, according to Dr. Ying-Hui Fu, a professor at UCSF. Based on behaviors displayed by the various members of the human community, we have been inclined to believe that our species needs 7 to 8 hours per night. A person who consistently gets less than that will eventually begin to display signs of disability and ill health.


The work done by Dr. Fu's team, however, indicates that the amount of sleep each of us needs varies individually, and that our genetic make-up may determine the set of our sleep clock. The research team found a mutation in the gene DEC2 in a mother and her daughter who don’t merely survive on just over 6 hours of sleep every night -- they thrive on it. One likely explanation: this mutation lets carriers make better use of their sleep time. Additional research may help to improve the quality of life for people who experience chronic sleep problems.


What is a mutant, anyway?


Fantastic tales of mutants and genetic mutations are the stuff of science fiction and horror --  clever film makers demonstrate how radiation from a nuclear weapon creates a giant monster or a genetic mix-up gives birth to a baby who breathes fire; in real life, however, mutation isn't necessarily a bad thing. In fact, the color of a child's eyes or the natural color of a person’s hair may actually be attributable to mutated genes.


When a mutation proves advantageous for a species, the members of the community that carry that trait will become predominant among their kind and those that do not may eventually die off. On the other hand, a mutation that results in a weaker organism probably will not survive indefinitely.


Some mutations yield a mixed bag. For example, individuals who inherit sickle cell trait from both their parents can expect to experience long-term health problems related to sickle cell disease. That same genetic trait, however, when passed on by only one parent, appears to protect carriers from the ravages of malaria.

Sleep research falls into the category of hard science; organizations apply for grants to study issues associated with sleep. And savvy entrepreneurs are always at hand to offer timely solutions to the problems identified by those studies. So it will be interesting to see what they do with new research coming out of theUniversity of California, San Francisco.

5:00 AM - September 3, 2009

Takeru V. Maeda

 

Women's Equality in Japan, A Cause for Concern

For a country that is second-highest in world's leading nations in the economy -- runner-up to the US , and one spot in front of China  -- it comes to a surprise that Japan is still, viewed by many, as slow as ever with the progress of gender inequality.

While most of the leading nations around the world have women taking on leading positions in offices, military, and just about anywhere, Japanese woman still find themselves separate in more ways than one, from the men.


A decade since the passing of the Basic Law of Gender Equality, Japan has seen little change with its scope on women's roles. However, despite having strong beliefs that the woman's place remain at home, there has been some increase to the number of women taking on some jobs that would’ve been easily filled by a male worker.


Although, even with this increase some women have faced setbacks when dealing with maternity leave or childcare, since most work places refuse to let parental females divide time between childcare and their jobs -- it must be one or the other, it seems. Because of this, there has been a low rate in women in managerial positions and in supervisory positions as well as a consistent low rate of women having children. Not to mention, more young women are choosing not to marry because it is believed by those in the work-place that once you're married, your value in the professional field is dropped.


For those who choose or who have chosen not to marry, their reasons are simple: Freedom and Independence. Many of professional women and those who aren't yet in the professional field, believe that without the bindings of a serious relationship with a man, they can free themselves to venture through life for their dreams. But why can't Japan, like most of the other leading nations, accept a woman who is both a hard-working professional and a hard-working mother and wife?


There still has lots to be done with Japan and its views on gender equality it seems, but for such a country that strictly keeps its traditional values, will change come in the foreseeable future?

      
                                               
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