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Science News Archive April 2012 - Page 20


Page 20 of 29

Development of the glial cell revealed

A team of researchers has identified a novel transcripitonal cascade that controls gliogenesis, the process by which glial cells are generated from neural stem cells. This discovery provides new insights into how glial cells support neuronal function and are implicated in neurological disorders such as Retts Syndrome, ALS, and Multiple...

SourceBaylor College of Medicine·JournalNeuron·DateApr 11, 2012

Imposing trade restrictions on parallel imports can motivate a firm to export, study finds

Economists Santanu Roy and Kamal Saggi found that trade restrictions on parallel imports can actually promote trade. When a market is smaller than the firm's own, imposing trade restrictions motivates the firm to export. The study suggests that policy diversity is working well, but countries with major asymmetries may need intervention.

SourceSouthern Methodist University·JournalJournal of International Economics·DateApr 11, 2012

Hate group formation associated with big-box stores

A study by Penn State economists found a significant correlation between the number of Wal-Mart stores and hate groups in an area. The researchers suggest that the large-scale retail chains may contribute to the fraying of social bonds and promote intolerant attitudes, particularly through their promotion of typical Protestant values.

SourcePenn State·JournalSocial Science Quarterly·DateApr 11, 2012

Fear of threats associated with social circle size

A study published in PLoS ONE found that people's fear levels toward threats are associated with the typical size of their social circles. The researchers determined that this effect was not due to a lack of differentiation between small and large groups, suggesting that social circle size plays a significant role in shaping our percep...

SourcePLOS·JournalPLOS ONE·DateApr 11, 2012

Ripe for biomedical applications

Researchers at the University of Bonn have developed a method to convert skin and umbilical cord cells directly into nerve cells with high efficiency. The scientists achieved this by using small molecules to optimize signaling pathways and simplify the process, resulting in up to 80% human neurons being produced.

SourceUniversity of Bonn·JournalNature Methods·DateApr 11, 2012

Ant queens lay more eggs as they age

Researchers found that ant queens from species Cardiocondyla obscurior laid more eggs as they aged, unlike humans and other organisms. This high reproductive rate did not shorten the queens' life spans, a surprising finding.

SourcePLOS·JournalPLOS ONE·DateApr 11, 2012

Distinct brain cells recognize novel sights

Researchers uncover two distinct cell types in the inferior temporal cortex that respond differently to familiar and novel objects. Excitatory neurons fire rapidly at initial encounters, while inhibitory neurons maintain activity over a wider timeframe, driving learning and reorganization.

SourceBrown University·JournalNeuron·DateApr 11, 2012

Unique approach needed to accurately assess health of young adult cancer survivors

A review article highlights the need for more comprehensive health assessments in young adult cancer survivors, who are living longer and experiencing late effects from treatment. The study concludes that traditional tools created for adult-onset cancer are insufficient for this population, requiring a broader range of measurement.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalJournal of Adolescent and Young Adult Oncology·DateApr 11, 2012

Ocean acidification linked to larval oyster failure

Research by Oregon State University scientists has found a definitive link between ocean acidification and oyster larval failure, with elevated CO2 levels inhibiting shell development and growth. The study's findings have significant implications for the $100 million annual commercial oyster production industry on the West Coast.

SourceOregon State University·JournalLimnology and Oceanography·DateApr 11, 2012

Robotic cats, a kitten mummy and a major UK vet gathering

Researchers identified a possible new feline disease in Scotland, characterized by robotic-like movements in cats. Meanwhile, an X-ray investigation of an over 2000-year-old Egyptian mummy revealed insights into cat burial practices, including treatment with natron and intricate wrapping techniques.

SourceSAGE·JournalJournal of Feline Medicine and Surgery·DateApr 11, 2012

Overcoming obsessive-compulsive disorder

Researchers at Concordia University have developed a novel approach to treating compulsive checking in obsessive-compulsive disorder (OCD) sufferers. By targeting individuals' faulty beliefs about responsibility, memory, and danger, the treatment aims to reduce anxiety and improve quality of life.

SourceConcordia University·JournalCognitive and Behavioral Practice·DateApr 10, 2012

Why letting salmon escape could benefit bears and fishers

Increasing escapement can improve the natural environment by benefiting grizzly bears, who will consume more salmon and occur at higher densities. This leads to a better environment for salmon, with more discarded salmon entering downstream life and enriching the ecosystem.

SourcePLOS·JournalPLOS Biology·DateApr 10, 2012