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Science News Archive October 2011 - Page 23


Page 23 of 28

Strong attachment to local communities made oil spill more stressful for many coastal residents

A study by LSU sociologists found that individuals with stronger sense of community attachment experienced higher anxiety, worry and fear during the BP Deepwater Horizon disaster. Strong attachments can create a self-reinforcing cycle of stress and anxiety when communities are threatened by natural resource depletion.

SourceLouisiana State University·JournalAmerican Behavioral Scientist·DateOct 7, 2011

Removal of restrictions can decrease music piracy

A new study from Rice University and Duke University found that removing digital rights management (DRM) restrictions can actually decrease music piracy. The research showed that while DRM restrictions make piracy more costly and difficult, they also have a negative impact on legal users who don't intend to engage in piracy.

SourceRice University·JournalMarketing Science·DateOct 7, 2011

Among insects, 'chivalry' isn't dead

In a study of wild field crickets, males are found to protect females from predators, increasing their chances of survival. In exchange, paired males sire more offspring with each partner, suggesting that this 'chivalry' may have evolutionary benefits. The findings challenge traditional interpretations of male guarding behavior.

SourceCell Press·JournalCurrent Biology·DateOct 6, 2011

Chlamydia utilizes Trojan horse tactics to infect cells

Researchers identified a novel mechanism where Chlamydia trachomatis tricks host cells into taking up the bacteria by coating itself with a growth factor made by the cells. This disguise creates a positive feedback loop, enabling bacterial infection and spread.

SourcePLOS·JournalPLOS Pathogens·DateOct 6, 2011

Sniffing out the brain's predictive power

A new study from Northwestern Medicine found that the brain uses predictive coding to generate templates of specific smells, setting up a mental expectation before sensing them. This ability provides humans with a behavioral advantage in reacting quickly and accurately to stimuli in their environment.

SourceNorthwestern University·JournalNeuron·DateOct 6, 2011

Neural stem cell transplant may tackle diabetes

Researchers have discovered a method to harness patient-derived neural stem cells as an alternative source of insulin-producing beta cells for regenerative treatments. This breakthrough could potentially overcome the shortage of donor pancreatic beta cells and provide a safer, more accessible way to treat diabetes.

SourceWiley·JournalEMBO Molecular Medicine·DateOct 6, 2011

How fair sanctions are orchestrated in the brain

A study published in Nature Neuroscience reveals that fair sanctions are orchestrated by the interaction between two frontal brain regions: the dorsolateral prefrontal cortex and the ventromedial prefrontal cortex. This communication is crucial for punishing norm violations at one's own expense.

SourceUniversity of Zurich·JournalNature Neuroscience·DateOct 6, 2011

Detecting glaucoma before it blinds

Researchers have analyzed and ranked various risk factors for open angle glaucoma to enable earlier screening. The study found that certain factors such as age, smoking history, visual field test results, and Cup-to-Disk ratio significantly increase the risk of developing OAG.

SourceInderscience Publishers·JournalInternational Journal of Medical Engineering and Informatics·DateOct 6, 2011

Incompatible assumptions common in biomedical research

Researchers found widespread disagreement among scientists studying cancer metastasis, with no two scenarios identical. The study suggests making assumptions explicit can improve biomedical modeling and create new opportunities for understanding alternative theories.

SourcePLOS·JournalPLOS Computational Biology·DateOct 6, 2011