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Science News Archive May 2011 - Page 13


Page 13 of 28

Late-breaking clinical trials

Researchers have made significant breakthroughs in treating various respiratory diseases. A new algorithm-based treatment for pregnant women with asthma has been found to be effective in reducing exacerbations. Additionally, a selective retinoid agonist may slow disease progression in emphysema, while sirolimus shows promise in patient...

Why more African Americans turn to Twitter

According to a Northwestern University study, African Americans are more likely to start using Twitter, particularly those interested in celebrity news and having higher Internet skills. The research found 37% of black students used Twitter in 2010 compared to 21% of white students.

SourceNorthwestern University·JournalNew Media & Society·DateMay 17, 2011

Study links obesity to increased risk of developing postoperative infection following colon surgery

A study published in Archives of Surgery found that obese patients are at a significantly higher risk of developing surgical site infections after colectomy. The study also showed that these infections result in increased costs, lengthier hospital stays, and a higher rate of hospital readmissions. As pay-for-performance models penalize...

SourceJAMA Network·JournalArchives of Surgery·DateMay 16, 2011

The incomplete art of brand imagery

A study by Henrik Hagtvedt found that incomplete typeface logos can create interest and spark innovation perception, but also lead to unclear communication and untrustworthiness. The results suggest that firms should avoid such logos when trust is critical, but may be effective for promotion-focused consumers.

SourceBoston College·JournalJournal of Marketing·DateMay 16, 2011

What's in a simple line drawing? Quite a lot, our brains say

A new study using brain scans reveals that simple line drawings can activate similar patterns of brain activity as color photographs when viewing natural scenes. This suggests that the brain uses abstract representations to categorize scenes and doesn't need features like texture and color to tell a beach from a street scene.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateMay 16, 2011

Poisonous tears

Researchers investigated snake venom's surface tension and viscosity, discovering that these properties facilitate the venom's entry into wounds. The team found that snakes developed optimal fang groove geometry and a special property of their venom to allow for efficient delivery of deadly poison.

SourceTechnical University of Munich (TUM)·JournalPhysical Review Letters·DateMay 16, 2011

Heads or tails?

Planarian flatworms can regenerate their entire body from a small piece of tissue due to the critical role of an ancient gene called notum. Notum determines whether a head or tail will regrow at amputation sites, enabling the worms to restore missing body parts.

SourceNorthwestern University·JournalScience·DateMay 16, 2011

Hormone improves long-term recovery from stroke

Scientists have discovered that high levels of insulin-like growth factor I (IGF-I) are associated with better long-term recovery after a stroke. The study found that patients who exercised more actively, with physiotherapy and physical exercise, demonstrated better recovery after a stroke.

SourceUniversity of Gothenburg·JournalThe Journal of Clinical Endocrinology & Metabolism·DateMay 16, 2011

Gene variation linked to infertility in women, study finds

A study from Johns Hopkins researchers found a link between a gene variation and infertility in women, with the altered gene affecting cholesterol regulation and pregnancy hormone production. The discovery may lead to a treatment for this condition, as a cholesterol medication shown to work in mice could potentially restore fertility.

SourceJohns Hopkins Medicine·JournalHuman Reproduction·DateMay 16, 2011

Striking ecological impact on Canada's Arctic coastline linked to global climate change

A recent study by Queen's University researchers reveals that the Arctic coastline is experiencing ecologically unprecedented impacts from global climate change. The team found that saltwater surges caused by rising sea levels have led to widespread die-off of coastal shrubs and dramatic changes in aquatic life.

SourceQueen's University·JournalProceedings of the National Academy of Sciences·DateMay 16, 2011