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Science News Archive 2012 - Page 66


Page 66 of 333

Computer interventions on college drinking don't last

A new analysis of computer-delivered and face-to-face interventions found that while both methods can curb college drinking for a little while, in-person encounters produce lasting results. Computer-delivered interventions had positive effects in the first few months but lost significance after 14 weeks.

SourceBrown University·JournalClinical Psychology Review·DateOct 15, 2012

Strengthening a billion-dollar gene in soybeans

Researchers have identified multiple genes that contribute to soybean resistance against the soybean cyst nematode, which causes hundreds of millions of dollars' worth of damage each year. By understanding how these genes interact and regulate expression, scientists may develop new methods for engineering artificial stronger resistance.

PNAS study: Language structure arises from balance of clear and effective communication

A team of researchers found that when learning a new language, humans automatically organize words into sentences that are both clearly understood and efficient to communicate. Participants in the study added case markings to nouns precisely when it made the sentence clearer, indicating a universal principle guiding language structure.

SourceGeorgetown University Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 15, 2012

IU Kelley School study: CEO and chair roles shouldn't be split unless completely necessary

Researchers from the Indiana University Kelley School of Business found that companies should only separate CEO and chair roles when there is a performance problem. The 'demotion strategy', which keeps the CEO but brings in an independent chair, was found to be the most corrective approach, reversing prior year's performance by 150%.

SourceIndiana University·JournalAcademy of Management Journal·DateOct 15, 2012

Montreal researchers shed new light on cancer risks associated with night work

Research by Centre INRS–Institut Armand-Frappier and Centre de recherche du Centre hospitalier de l'Université de Montréal found a possible association between night work and increased risk of prostate, colon, lung, bladder, rectal, and pancreatic cancer. Exposure to light at night can disrupt the body's natural sleep-wake cycle.

SourceInstitut national de la recherche scientifique - INRS·JournalAmerican Journal of Epidemiology·DateOct 15, 2012

JCI early table of contents for Oct. 15, 2012

Researchers discovered that interleukin-36 may be a useful therapeutic target in the treatment of psoriasis, finding that mice lacking this protein were protected from immune-mediated skin inflammation. Additionally, studies on hypertension revealed that endoplasmic reticulum stress in brain cells contributes to high blood pressure, an...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 15, 2012

Wide discrepancy in surveillance and control of infections in ICUs

A new study reveals significant variation in the screening and surveillance of multidrug-resistant organisms (MDROs) in intensive care units (ICUs), with some hospitals neglecting commonsense medical precautions. The researchers found that only a small percentage of hospitals routinely screen for certain deadly MDROs, such as MRSA and ...

SourceColumbia University Irving Medical Center·JournalAmerican Journal of Infection Control·DateOct 15, 2012

Replicating risk genes in bipolar disorder

A large genetic replication study found compelling evidence that the chromosome 3p21.1 locus contains a common genetic risk for bipolar disorder, specifically the PBRM1 gene. This replication distinguishes the heritable risk for bipolar disorder and schizophrenia, contrasting with previous studies.

SourceElsevier·JournalBiological Psychiatry·DateOct 15, 2012

University of Maryland School of Medicine scientists develop stem cell model for hereditary disease

Scientists at the University of Maryland School of Medicine created a stem cell model for Gaucher disease, allowing them to test potential therapies in a dish. The study uses genetically similar stem cells that react to drugs like patient cells, accelerating drug discovery and bringing hope to patients.

SourceUniversity of Maryland Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 15, 2012

Additive effect of small gene variations can increase risk of autism spectrum disorders

Researchers found that small genetic variations can accumulate and contribute to the risk of autism spectrum disorders. In families where only one child has ASD, 40% of the risk is inherited, rising to 60% in families with multiple affected children. These findings provide new insights into the genetic factors underlying ASD.

Scratching the surface of psoriasis

A study published in the Journal of Clinical Investigation found that mice lacking interleukin-36 (IL-36) were protected from psoriasis-like skin inflammation. This suggests that targeting IL-36 could be a promising approach for treating psoriasis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 15, 2012

Study suggests intermittent binge drinking could cause significant brain impairment within months

A study found that rats who had intermittent access to alcohol exhibited cognitive impairment similar to established alcoholism after just a few months. The researchers linked this impairment to the activation of a small group of neurons that inhibit executive control functions in the prefrontal cortex.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateOct 15, 2012

Adding up autism risks

A new study published in Molecular Autism found that common genetic variations can add up to increase the risk of autism spectrum disorder. The research, which analyzed data from over one million participants, suggests that inherited risk is additive and can significantly impact an individual's likelihood of developing ASD.

SourceBMC (BioMed Central)·JournalMolecular Autism·DateOct 14, 2012

Applied physics as art

Harvard physicists have discovered that ultrathin, atomically thin films can be tailored to reflect specific colors using an overlooked optical phenomenon. The coatings, made of gold and germanium or other elements, change color with minimal thickness changes.

SourceHarvard University·JournalNature Materials·DateOct 14, 2012

USADA's chief science officer publishes editorial on anti-dope testing in sport: History and science

The editorial discusses the evolution of doping scandals from ancient times to modern-day sports, highlighting the need for continuous innovation in detection methods. Bowers emphasizes the importance of analytical skills, pharmacokinetics, and human physiology in preventing abuse in sport.