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247,747 articles from PhysOrg

Backpack straps harvest energy to power electronics

All that rubbing of your backpack straps on your shoulders may be put to good use, now that researchers have designed a novel type of energy harvesting backpack. The pack has straps made of a piezoelectric material that can convert the mechanical strain on the straps into electrical energy that may power or recharge portable electronics.

Scientists eye secrets of retinal regeneration

Peering at microscopic changes within the retina, scientists in the Department of Ophthalmology at Weill Cornell Medical College in New York City, have discovered a key mechanism driving eye health and eye disease.

Eating Less Meat May Slow Climate Change

(AP) -- Eating less meat could help slow global warming by reducing the number of livestock and thereby decreasing the amount of methane flatulence from the animals, scientists said on Thursday.

Experts: Climate Change Puts Sea at Risk

(AP) -- Climate change is affecting Europe faster than the rest of the world and rising temperatures could transform the Mediterranean into a salty and stagnant sea, Italian experts said Wednesday.

IBM Develops Virtual Deaf Interpreter

(AP) -- Here's a productive twist on the animated characters known as avatars that carry out fantasies in virtual computer worlds. IBM Corp. researchers have developed an avatar that can translate spoken words into sign language.

NASA Sought to Stop Astronaut Meltdowns

(AP) -- NASA e-mails released Wednesday indicate the space agency was looking for ways to prevent astronaut meltdowns just three months before one-time shuttle flier Lisa Nowak was arrested in a scandalous love triangle.

TV Veterans Produce Web-Only Show

(AP) -- The creative minds behind such TV shows as "Thirtysomething" and "My So-Called Life" are launching a Web-based show, hoping to find the artistic freedom online that they say is lacking on broadcast networks.

Genes and drugs team up to lower blood pressure

Patients with high blood pressure respond very differently to antihypertensive medication, making treatment selection tricky for physicians. But new research published in the online open access journal, BMC Medical Genetics, pinpoints a number of gene-drug interactions that could allow medication to be tailored to individual patients based on their genetics.

The molecular signature of loneliness

People who experience chronically high levels of loneliness show gene-expression patterns that differ markedly from those of people who don't feel lonely, according to a new molecular analysis in the online open access journal Genome Biology.

DNA analysis shows true dispersal of protozoa

In contrast to previous findings, it seems that the global distribution of macro- and microorganisms might be similar. A study in the online open access journal, BMC Evolutionary Biology, shows that some protozoa are globally dispersed, while others are geographically restricted - by looking at a new fast-evolving DNA marker. The study also reveals that the biodiversity of protozoa may be much...

Scientists discover how to isolate stem cells in womb tissue

Scientists in Australia have found a way of identifying probable stem cells in the lining of women`s wombs. The finding opens up the possibility of using the stem cells for tissue engineering applications such as building up natural tissue to repair prolapsed pelvic floors. Pelvic floor prolapse is a common condition, affecting over 50% of women after childbirth; around one in ten women have...

How dirty is your money?

Drug dealers found with bank notes contaminated with unusually high levels of drugs are now less likely to get away with their crimes, thanks to new evidence from a team led by the University of Bristol, UK. The research finds that geographical location has absolutely no influence on the distribution of drug contamination on bank notes.

Boston Art Museum Makes Works Mobile

(AP) -- Masterpieces are going mobile at Boston's Museum of Fine Arts. The MFA said Wednesday it will sell downloads of works by artists such as Claude Monet and Edward Hopper for cell phones and other mobile devices.