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Science News for February 8, 2011


Detecting pathogens in waterways: An improved approach

A team of USDA scientists has developed a new approach to detecting pathogenic Escherichia coli and Salmonella bacteria in waterways, achieving lower detection levels than previous methods. The process uses a combination of techniques, including filtration, biochemical testing, and polymerase chain reaction technology, to identify even...

CeBIT 2011: Electronic fitness trainer

Researchers at Fraunhofer Institute for Integrated Circuits IIS develop an electronic fitness trainer that collects data on user movements and breathing, providing personalized feedback and advice. The system aims to motivate users towards regular exercise and improve physical well-being, particularly for older adults.

Not just for raincoats

The study reveals a miniature version of the 'water hammer' effect, which causes pressure spikes in water droplets on textured surfaces. This insight could lead to the design of more effective superhydrophobic surfaces for various applications, including energy efficiency improvements.

SourceNorthwestern University·JournalPhysical Review Letters·DateFeb 8, 2011

In February journal, UC and industry researchers predict future of electronic devices

Researchers at the University of Cincinnati and industry experts predict a range of exciting new electronic devices in the near term and beyond. These include color e-readers with high-speed functionality, electronic shelf labels that can be updated in seconds, and flexible screens for new applications like signage and Glow Boards.

SourceUniversity of Cincinnati·JournalJournal of the Society for Information Display·DateFeb 8, 2011

Lower mental health co-pays do not help seniors seek care

A new study published in Medical Care found that even steep reductions in co-pays for outpatient mental health care do not motivate more seniors to seek care. Despite parity legislation and reduced co-pays, participation in mental health services remained unchanged, except for black seniors who saw a slight increase.

SourceBrown University·JournalMedical Care·DateFeb 8, 2011

Figuring out fetal alcohol syndrome in fruit flies

Researchers used fruit flies to study fetal alcohol syndrome, finding that prenatal alcohol exposure can cause developmental problems such as intellectual disabilities and abnormal facial features. The study establishes a new model system for studying FAS, which may lead to the development of new therapies.

SourceThe Company of Biologists·JournalDisease Models & Mechanisms·DateFeb 8, 2011

Turning off stress

The study found that three urocortin proteins play a central role in regulating stress responses and shutting down the stress response. Genetically engineered mice lacking these proteins showed impaired recovery from stress, highlighting their importance in returning to normal behavior.

SourceWeizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateFeb 8, 2011

NRL researchers view the sun in 3-D

The STEREO spacecraft provide a 360-degree view of the Sun, allowing NRL researchers to map its entire atmosphere continuously. This capability enables them to study the solar corona and inner heliosphere in unprecedented detail, shedding light on the evolution and structure of the solar atmosphere.

The great tonsil dilemma

A new University of Michigan study suggests that routine analysis of pediatric tonsillectomy specimens may not be worth the money. The analysis rarely leads to the discovery of hidden disease. Pathologists examine tonsillectomy specimens in two ways, but microscopic examination is nearly three times more expensive than visual inspectio...

Childhood cancer research in danger

Despite significant improvements in childhood cancer survival rates, research funding is inadequate and collaboration among countries is limited. The report calls for increased EU funding to support a Europe-wide clinical trials network and the creation of a European Childhood Cancer Epidemiological Registry.

SourceECCO-the European CanCer Organisation·Journalecancermedicalscience·DateFeb 8, 2011

The international digital divide

The study maps global digital divide tiers, revealing four tiers of countries based on ICT access. Developed nations dominate the top tier, while African nations account for most of the lowest tier, indicating significant disparities in computer use and internet access.

SourceInderscience Publishers·JournalInternational Journal of Business Information Systems·DateFeb 8, 2011

Major step taken toward an open and shared digital brain atlasing framework

A new open digital brain atlasing framework, combining Waxholm Space and Digital Atlasing Infrastructure, facilitates the integration of genetic, anatomical, and functional imaging studies. This framework is expected to catalyze both basic and medical neuroscience research by linking genetic studies with large-scale brain structure and...

SourceINCF - International Neuroinformatics Coordinating Facility·JournalPLOS Computational Biology·DateFeb 8, 2011

Malnutrition: A skeleton in the health care closet

A recent study revealed that more than one in three hospital patients are malnourished, with rates as high as 70% in residential aged care. Malnutrition increases hospital length of stay and health care costs. Experts call for better education and screening to address this issue.

SourceWiley·JournalNutrition & Dietetics·DateFeb 8, 2011

Hope for stroke victims

Two new studies provide definitive evidence that administering a naturally-occurring enzyme called oxolacetate can reduce glutamate levels and improve outcomes in stroke patients. High glutamate levels correlate with poor outcomes, while high oxolacetate levels are associated with better recovery.

SourceWeizmann Institute of Science·JournalJournal of Cerebral Blood Flow & Metabolism·DateFeb 8, 2011

Turning bacteria against themselves

Scientists at Washington University School of Medicine have identified a protective mechanism in Streptococcus pyogenes that could be exploited to create new antibiotics. The discovery reveals how the antitoxin blocks the toxin's activity, sparing the bacteria from self-destruction.

SourceWashU Medicine·JournalStructure·DateFeb 8, 2011

Hydrogels used to make precise new sensor

Researchers at Purdue University have developed a new type of biological and chemical sensor using thin stripes of a gelatinous material called a hydrogel. The sensor is highly sensitive and can measure changes in pH smaller than one-1,000th on the scale, enabling environmental monitoring and glucose monitoring.

Combining brain imaging, genetic analysis may help identify people at early risk of Alzheimer's

Researchers have discovered a link between a variation of the BDNF gene and Alzheimer's disease, with those carrying the gene more likely to exhibit thinner temporal lobe structures and disrupted neural connections. This breakthrough study could lead to early identification and intervention for the disease.

SourceCentre for Addiction and Mental Health·JournalArchives of General Psychiatry·DateFeb 8, 2011

The hitch in the drug? The itch in the drug

Researchers identify two distinct neuronal signaling pathways activated by Imiquimod, a topical cream that treats skin diseases while inducing severe itching as a side effect. The study may lead to designing future drugs that effectively treat targeted conditions while blocking problematic itching and scratching.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateFeb 8, 2011

Thoughts of hopes, opportunities keep people from clinging to failing investments

A new study published in Psychological Science found that people are more likely to abandon a failing investment when they focus on their hopes and aspirations, rather than their duties and obligations. This suggests that changing one's mindset can help individuals make more rational decisions about continuing or ending a project.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 8, 2011

Trial and error: The brain learns from mistakes

Researchers have identified a protein that corrects errors in the brain's neuronal connections during development. Bone morphogenetic protein 4 (BMP4) helps eliminate incorrect connections, establishing proper specificity in the cerebellum and potentially contributing to neurological disorders like autism.

SourcePLOS·JournalPLOS Biology·DateFeb 8, 2011

March 2011 Geology highlights

Studies reveal marine ferromanganese crusts as potential mineral resources, while CO2 emissions from volcanic lakes are also highlighted. Additionally, progressive uplift of the north Tibetan Plateau is confirmed since the middle Miocene, with implications for geological processes and catastrophic events.

SourceGeological Society of America·JournalGeology·DateFeb 8, 2011

Popular kids more likely to bully peers

A new study finds that popular adolescents, particularly those in the second tier of popularity, are more likely to engage in bullying behavior. The researchers argue that social status and aggression are linked, with students who occupy the center of the social hierarchy wielding power and potentially deterring retaliation.

SourceUniversity of California - Davis·JournalAmerican Sociological Review·DateFeb 8, 2011