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Science News Archive March 2014 - Page 31


Page 31 of 34

Raising an army of armchair activists?

A recent study on the Save Darfur Cause on Facebook found that only a small percentage of members donated or recruited others, despite the campaign's large online presence. Meanwhile, those who joined independently were more likely to engage in activism, highlighting the potential for individual actions to drive collective change.

SourceUniversity of California - San Diego·JournalSociological Science·DateMar 4, 2014

Alzheimer's in a dish

Researchers at Harvard University have successfully converted patient skin cells into human brain cells, offering a new model for studying and developing treatments for early-onset Alzheimer's disease. The study found that preventing amyloid-beta imbalances can reduce levels of distorted tau protein.

SourceHarvard University·JournalHuman Molecular Genetics·DateMar 4, 2014

Study examines gap in federal oversight of clinical trials

A recent study analyzed nearly 24,000 active human research clinical trials and found that 5-16% are not covered by two major federal regulations. The primary federal human subjects protections policies in the US include FDA HSP regulations and the Common Rule, which can lead to overlap trials and gap trials with varying characteristics.

SourceJAMA Network·JournalJAMA·DateMar 4, 2014

Physics in 3-D? That's nothing. Try 0-D

Researchers at the University of Cincinnati have identified a zero-dimensional quantum dot structure that can confine electronic excitations within semiconductor nanowires. This discovery has significant implications for harnessing solar energy, creating stronger lasers, and developing more sensitive medical diagnostic devices.

'Gaydar' revisited

A recent study revisits the phenomenon of 'gaydar' in women, finding that lesbians are better at detecting sexual orientation, while straight women excel at identifying emotions and thoughts. The research also highlights differences in judgments between lesbian and straight judges.

SourceNortheastern University·JournalCognition & Emotion·DateMar 4, 2014

Next step in live-donor uterus transplant project

A team of Swedish researchers led by Professor Mats Brännström have successfully performed nine uterus transplants using live donors, a breakthrough in treating uterine infertility. The transplants involved five mother-daughter pairs and four close relatives, with no blood transfusions required during surgery.

SourceUniversity of Gothenburg·JournalFertility and Sterility·DateMar 4, 2014

What makes flying snakes such gifted gliders?

A team of researchers used computer simulations to study the aerodynamics of flying snakes, discovering that whirls of wind surrounding the snake's body provide an extra boost of lift. This unique shape helps the snake glide efficiently through the air, making it a fascinating example of nature's efficient design.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·DateMar 4, 2014

Discovery in France of the New Guinea flatworm

The New Guinea flatworm, considered one of the 100 worst invasive alien species, has been found in France for the first time. The flatworm was identified by molecular analysis and is capable of consuming European snails and other soil-dwelling species.

SourcePeerJ·JournalPeerJ·DateMar 4, 2014

Plant extract hope for infant muscle disease

Researchers have discovered a plant-based compound that targets the root cause of spinal muscular atrophy (SMA), a genetic disorder causing muscle wastage and weakness in infants. Quercetin has shown promise in tests on zebra fish, mice, and fruit flies, offering a potential treatment option for early stages of the disease.

SourceUniversity of Plymouth·JournalJournal of Clinical Investigation·DateMar 4, 2014