Traditional attitudes of masculinity, such as physical toughness and personal sacrifice, are valued in Mexican culture. A University of Missouri researcher found that Mexican-American men, as a group, are more likely to endorse traditional 'macho man' attitudes than European-American or black men. Certain factors influenced this attitude, including socioeconomic status. The higher the SES, the...

The road to death or differentiation follows a similar course in embryonic stem cells, said researchers at Baylor College of Medicine in Houston in a report that appears online today in the journal Cell Stem Cell.

The results of a randomized trial led by researchers at the Johns Hopkins Bloomberg School of Public Health and the University of Malawi College of Medicine found that extending the routine antiretroviral regimen can significantly reduce the risk of mother-to-child HIV transmission.

Two studies supported by the National Institutes of Health offer insights into preventing early death and HIV infection among breastfeeding infants of mothers with HIV in resource poor countries.

Dutch researcher Mirjam Moerbeek used a Veni grant to investigate how best to design a study with nested data at a reasonable cost. An example includes an intervention study aimed at reversing unhealthy lifestyles in young people. The question is how many schools and how many pupils per school should take part.

Colonies of fossilised creatures, dubbed "hairy blobs," have been discovered in one of the harshest environments on Earth. US geologists have found previously unknown fossilised blobs, believed to be evidence of life, in sediment deposited in acidic lakes around 250 million years ago. The find could be crucial for finding life on other planets, such as Mars, where the environment is strikingly...

Scientists have used human stem cells to dramatically improve the condition of mice with a neurological condition similar to a set of diseases in children that are invariably fatal. With a one-time injection of stem cells just after birth, scientists were able to repair defective wiring throughout the brain and spinal cord -- the entire central nervous system -- of mutant "shiverer mice," so...

Women born after 1944 began drinking alcohol at younger ages than their elders, and that appears to have put them at greater risk for alcoholism, according to researchers at Washington University School of Medicine in St. Louis.

Use of mammography and breast ultrasound procedures soared by over 30 percent among women aged 25-44 in the six months following Kylie Minogue's breast cancer diagnosis, says a new study from the University of Melbourne.

A cryogenic pressure vessel developed and installed in an experimental hybrid vehicle by a Lawrence Livermore National Laboratory research team can hold liquid hydrogen for six days without venting any of the fuel.

Licensed pesticide applicators who used chlorinated pesticides on more than 100 days in their lifetime were at greater risk of diabetes, according to researchers from the National Institutes of Health. The associations between specific pesticides and incident diabetes ranged from a 20 percent to a 200 percent increase in risk, said the scientists with the NIH's National Institute of Environmental...

A new study identifies a signaling molecule that plays a major role in radiation-induced intestinal damage. The research may lead to new strategies for protecting normal tissues from radiation during cancer therapies

People recovering from acute heart problems such as heart attack and heart surgery are more likely to develop habits to control heart attack risk factors when they meet regularly with cardiac "disease managers," according to researchers at Mayo Clinic in Rochester. These managers are nonphysician cardiac rehabilitation specialists who lead long-term follow-up programs that last three years. With...

Scientists working at NASA's Goddard Space Flight Center in Greenbelt, Md., have concocted an innovative recipe for giant telescope mirrors on the Moon. To make a mirror that dwarfs anything on Earth, just take a little bit of carbon, throw in some epoxy, and add lots of lunar dust.

Eighteen percent of teenagers who took part in a survey of 15-17 year-olds admitted eating problems. Students who reported suffering from anxiety earlier in adolescence were 20 times more likely to report problems. Anxiety was a bigger problem than dissatisfaction with appearance. 372 students took part and 57 percent were girls.

Scientists report a dramatic success in what may be the first documented rescue of a congenital brain disorder by transplantation of human neural stem cells. The research may lead the way to new strategies for treating certain hereditary and perinatal neurological disorders.

A Michigan Technological University professor has developed a new water treatment that could help keep a deadly fish disease out of Lake Superior.

A new report shows that a non-ambulatory (unable to walk or stand) child with a cervical spinal cord injury was able to restore basic walking function after intensive locomotor training. The case study, published in Physical Therapy, the scientific journal of the American Physical Therapy Association, evaluated the effects of locomotor training in a 4.5 year-old-boy, who had no ability to walk...

Researchers gave unlocked some of the secrets of newly discovered iron-based high-temperature superconductors, research that could result in the design of better superconductors for use in industry, medicine, transportation and energy generation.

A new wireless sensor network allows for the clandestine data collection of environmental factors in remote locations and its monitoring from anywhere in the world where the Internet is available.

Non-white defendants are nearly twice as likely to receive harsher prison sentences than white defendants in North Carolina criminal cases stemming from inflicted traumatic brain injury of young children.

Biomedical research may be substantially hampered by drawn out debates, conflicting legislation and restrictive policies. A new analysis investigates the influence of policy environments on the progression of research related to human embryonic stem cells (hESC) and offers new insight into the international development of this often ethically controversial field.

Laboratory tests and field studies conducted by James Madison University researchers continue to show promise that probiotic bacteria can be used to help amphibian populations, including the endangered yellow-legged frog, fend off lethal skin diseases.

Research has shown that HIV-positive African-American and Hispanic men who were sexually abused as children are particularly vulnerable to engaging in high-risk sex and experiencing depressive symptoms. Yet few HIV intervention programs exist to help them. Now, a new study finds that interventions that address the life experiences of these men can contribute significantly toward preventing...