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Science News for February 24, 2010


Mouse model may provide insight into the schizophrenic brain

Researchers manipulate a schizophrenia susceptibility gene in fetal mice to unravel the link between prenatal brain development and adult cognition. The study finds that transient reduction of the Disrupted-in-Schozophrenia-1 gene leads to aberrant changes in adult animals, including perturbation of specific dopaminergic brain pathways.

SourceCell Press·JournalNeuron·DateFeb 24, 2010

New Business Horizons special issue on US health care

This Special Issue of Business Horizons addresses critical issues in US healthcare, including rising costs, quality, and accessibility. The issue features research on topics such as consumerism, information technology, lean-manufacturing concepts, and patient-centered medical homes to improve healthcare delivery and management.

SourceElsevier·JournalBusiness Horizons·DateFeb 24, 2010

Intelligent people have 'unnatural' preferences and values that are novel in human evolution

A new theory suggests that higher intelligence is associated with novel social values and preferences in human evolution. More intelligent individuals are more likely to adopt liberal political ideology, atheism, and preference for sexual exclusivity. However, intelligence does not correlate with evolutionarily old preferences and values.

SourceAmerican Sociological Association·JournalSocial Psychology Quarterly·DateFeb 24, 2010

Study shows that suffocating head lice works in new treatment

A new non-neurotoxic treatment for head lice has been found to be safe and effective in children from six months of age and up, with an average treatment success rate of 91.2% after one week. The treatment, benzyl alcohol lotion 5% (Ulesfia), works by suffocating lice, a method previously attempted with household items.

SourceWiley·JournalPediatric Dermatology·DateFeb 24, 2010

Thicker brains fend off pain

Researchers found that practicing Zen meditation can thicken certain areas of the brain, leading to lower pain sensitivity. The study suggests that meditative practices could be beneficial for managing chronic pain and age-related grey matter reductions.

SourceUniversity of Montreal·JournalEmotion·DateFeb 24, 2010

Canadian researchers study mass gatherings and risks of infectious disease threats

Researchers at St. Michael's Hospital and Children's Hospital Boston are using real-time intelligence systems to monitor potential infectious disease threats to mass gatherings like the Olympics. The collaboration is providing actionable intelligence to help organizers prepare for and respond to emerging infectious diseases.

SourceSt. Michael's Hospital·JournalCanadian Medical Association Journal·DateFeb 24, 2010

A hot road to new drugs

A new technology called microscale thermophoresis allows researchers to measure interactions under close-to-native conditions, improving decision-making in drug development. The technique exploits the Soret effect to detect binding activity, providing a more reliable method for identifying potential therapeutic agents.

SourceLudwig-Maximilians-Universität München·JournalAngewandte Chemie·DateFeb 24, 2010

An emotion detector for baby

A Japanese team has developed an emotion detector for babies that can accurately classify their cries as 'normal' or in pain. The device uses a statistical analysis of audio spectra and achieved a 100% success rate in its validation tests.

SourceInderscience Publishers·JournalInternational Journal of Biometrics·DateFeb 24, 2010

Where does the fluid go?

Scientists have developed a revised model to better understand the transport of fluid constituents, which has important roles in biology, physics, and chemistry. The new model contradicts widely accepted models and provides an improved analysis of combined advection and diffusion.

SourceAmerican Society of Agronomy·JournalVadose Zone Journal·DateFeb 24, 2010

Psychiatry's main method to prevent mistaken diagnoses of depression doesn't work: NYU study

A recent NYU study empirically challenges the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders' criteria for diagnosing depression, suggesting that psychiatrists' official method to prevent false-positive diagnoses may not be effective. The study examines the Clinical Significance Criterion (CSC)...

SourceNew York University·JournalJournal of Psychiatry·DateFeb 24, 2010

Caltech scientists find first physiological evidence of brain's response to inequality

Researchers found that the brain responds more strongly to a poor person receiving a financial reward than a rich person, even if the brain being studied belongs to the rich individual. This study suggests that the human brain is wired to respond to inequality, contradicting the prevailing view of human nature as solely self-interested.

Going green in the hospital

Hospitals in the US could save hundreds of millions of dollars annually by reusing medical equipment such as laparoscopic ports and cutting tools. With proper sterilization and testing, these devices can be safely reused multiple times.

SourceJohns Hopkins Medicine·JournalAcademic Medicine·DateFeb 24, 2010

Tips from the American Journal of Pathology

Researchers found that toxin Paton-Valentine leukocidin does not affect MRSA-induced pneumonia. A novel inhibitor of tumor angiogenesis was discovered in the metalloprotease ADAMTS9. Additionally, Kallikrein-related peptidase 4 (KLK4) may activate protease-activated receptors promoting colon cancer development.

SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateFeb 24, 2010

Health care volunteers and disasters: First, be prepared

Health care volunteers can make a disaster situation worse if they are not prepared. To optimize their response, they should seek formal training in disaster medicine and register with existing volunteer organizations. They should also consider the physical and emotional challenges of working in disaster areas and be mindful of the nee...

SourceUniversity of Pennsylvania School of Medicine·JournalNew England Journal of Medicine·DateFeb 24, 2010

The safe way to use 1 Internet password

A Queensland University of Technology researcher has discovered an old authentication system that can provide a secure way to sign in only once per internet session. The system, known as the anonymous credential system, works by revealing minimal information about the user, ensuring privacy and security.

SourceQueensland University of Technology·JournalJournal of Network and Computer Applications·DateFeb 24, 2010