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279,036 articles from PhysOrg

Panel issues comprehensive US food allergy guidelines

An expert panel sponsored by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, has issued comprehensive U.S. guidelines to assist health care professionals in diagnosing food allergy and managing the care of people with the disease.

Scientists test commonly used antibodies

If a strand of your DNA was stretched out completely, it would be more than six feet long. It's hard to imagine that it can fit inside the nucleus of one of your cells, but that's exactly how it works.

Sumatran 'tiger map' reveals tiger population higher than expected

Scientists have created the highest resolution map of the Sumatran tiger distribution ever produced, revealing that the island now hosts the second largest tiger population on earth. The research, carried out with the Wildlife Conservation Society's Indonesia Program and Forum HarimauKita, will be published in a special issue of Integrative Zoology, on tiger conservation and research...

Warring Greeks find peace in ancient Egypt

Naukrtis, a Greek trade emporium on Egyptian soil, has long captured the imagination of archaeologists and historians. Not only is the presence of a Greek trading settlement in Egypt during the 7th and 6th century B.C.E. surprising, but the Greeks that lived there in harmony hailed from several Greek states which traditionally warred amongst themselves.

New nanotube material stays rubbery over a more than 1,000 degree temperature range

(PhysOrg.com) -- Silicone rubber is used in many applications in which a material is required to remain rubbery over a wide temperature range, since it retains its properties over the approximate range of -55°C to 300°C. Now a new material made of carbon nanotubes has been developed that retains its viscoelastic properties over a temperature range almost five times larger.

GM's EN-V Envisions Future of Personal Mobility

Rapid urbanization, aging populations and more demand for personal mobility globally present challenges today’s vehicles will be hard-pressed to meet. Envisioning what that future will need gave birth to the Electric Networked Vehicle, or EN-V.

New type of nuclear fission discovered

(PhysOrg.com) -- Nuclear fission, or the splitting of a heavy nucleus, usually results in symmetrical fragments of the same mass. Physicists attribute the few known examples of fission that is asymmetric to the formation in the resultant fragments of "magic" nuclei, which are extremely stable nuclei with all energy levels filled. Now, experiments at the European particle physics laboratory at the...

Scientists find gene linked to congenital heart defect

(PhysOrg.com) -- A gene that can cause congenital heart defects has been identified by a team of scientists, including a group from Princeton University. The discovery could lead to new treatments for those affected by the conditions brought on by the birth defect.

Understanding shape-shifting polymers (w/ Video)

(PhysOrg.com) -- Shape-memory polymers are not a new discovery, as anyone who has played with Shrinky-Dinks or who has used heat-shrink tubing for wires in an electronic circuit can testify. But now, thanks to new analysis by researchers at MIT, the behavior of these interesting materials has been mathematically modeled in detail, which should make it easier to use the materials in new ways;...

Lesbian, gay and bisexual teens singled out for punishment

Lesbian, gay and bisexual (LGB) adolescents are about 40 percent more likely than other teens to be punished by school authorities, police and the courts, according to a study by Yale University researchers. Published in the January 2011 issue of the journal Pediatrics, the study is the first to document excessive punishment of LGB youth nationwide.

More nations may pledge carbon limits at UN talks

(AP) -- More countries are expected this week to pledge specific actions to limit carbon emissions over the next decade, in what would be "very good news" for arduous negotiations on a climate change agreement, says host country Mexico.

Study finds family acceptance of LGBT youth protects against depression, substance abuse, suicide

For the first time, researchers have established a clear link between accepting family attitudes and behaviors towards their lesbian, gay, bisexual and transgender (LGBT) children and significantly decreased risk and better overall health in adulthood. The study shows that specific parental and caregiver behaviors -- such as advocating for their children when they are mistreated because of their...

WikiLeaks reveals US global interests

WikiLeaks has released a secret list of infrastructure from pipelines to smallpox vaccine suppliers whose loss or attack by terrorists could "critically impact" US security in the view of the State Department.

Forest pests accumulating despite regulations

Nonindigenous insects and pathogens continue to become established in US forests with regularity despite regulations intended to prevent this, according to a study published in the December 2010 issue of BioScience. The study, by a team led by Juliann E. Aukema of the National Center for Ecological Analysis and Synthesis in Santa Barbara, California, found that nonindigenous insects are being...

The LouseBuster returns

Four years after the LouseBuster prototype made headlines when research showed the chemical-free, warm-air device wiped out head lice on children, a new study reveals that a revamped, government-cleared model is highly effective.


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