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Science News Archive 2009 - Page 37


Page 37 of 277

Squeak, squeak -- can you hear me now?

Researchers created a new strain of mice with outstanding hearing as they age, studying the phenomenon known as golden ears. The study offers clues about maintaining good hearing while aging and provides a new tool to explore protective factors that allow some organisms to retain their hearing for their whole lives.

SourceUniversity of Rochester Medical Center·JournalNeurobiology of Aging·DateNov 9, 2009

First Bose-Einstein condensation of strontium

Physicists from the Institute for Quantum Optics and Quantum Information produced a Bose-Einstein condensate of strontium atoms, outperforming competitors in an international race. The breakthrough was achieved using the isotope 84Sr, which has ideal scattering properties for this phenomenon.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateNov 9, 2009

The Malawi government's program to cut childhood pneumonia deaths

The Malawi government has introduced a national program to deliver effective pneumonia treatment, known as standard case management, to children. This initiative aims to reduce the high mortality rate of childhood pneumonia in low-income countries by providing timely and appropriate antibiotic therapy and oxygen support.

SourcePLOS·JournalPLOS Medicine·DateNov 9, 2009

Words, gestures are translated by same brain regions, says new research

A recent study published in PNAS found that the brain regions responsible for decoding spoken words also process wordless gestures. This discovery challenges traditional theories about the evolution of language and suggests that these brain regions may play a broader role in symbol interpretation.

SourceNIH/National Institute on Deafness and Other Communication Disorders·JournalProceedings of the National Academy of Sciences·DateNov 9, 2009

Unravelling the pathology of dementia

A study published in PLOS Medicine found that dementia is often associated with mixed pathological changes, including Alzheimer's and vascular dementia. The researchers estimated that drugs targeting specific pathologies may have limited impact on the overall burden of dementia.

SourcePLOS·JournalPLOS Medicine·DateNov 9, 2009

Drought resistance explained

Scientists discovered how plant hormone ABA interacts with protein PYR1 to trigger drought response. This interaction enables PP2C molecules to be hijacked, allowing plants to increase water uptake and storage while decreasing water loss. The study offers new approaches for increasing crop tolerance to water shortages.

Mount Sinai finds those with more difficult to treat forms of HCV are half as likely to get treated

Researchers found that patients with more difficult-to-treat forms of hepatitis C are less likely to initiate treatment, with marital status and comorbidities being significant factors. Mount Sinai is now launching a program to increase support systems for patients, aiming to improve treatment rates.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Health Care for the Poor and Underserved·DateNov 9, 2009

Scripps team shows diet switching can activate brain's stress system, lead to 'withdrawal' symptoms

Researchers from Scripps Research Institute found that cycling between sweet and regular food can activate the brain's stress system, generating overeating, anxiety, and withdrawal-like symptoms. The study suggests a vicious circle of compulsive eating and anxiety, where repeated dieting can lead to increased stress levels.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateNov 9, 2009

Elsevier sponsors 2009 Semantic Web Challenge

The 2009 Semantic Web Challenge recognized four outstanding applications that demonstrated practical applicability to real-world issues. The winners were awarded cash prizes sponsored by Elsevier, promoting the dissemination of knowledge from academia to society.

Darwin meets Facebook

Natural historians can now share and manage their data using the Scratchpads platform, which serves over 1100 users across 100 sites. The system allows users to create virtual workbenches to study aspects of organisms, promoting biodiversity informatics approaches.

SourceBMC (BioMed Central)·JournalBMC Bioinformatics·DateNov 9, 2009

Sniffing out memories

Researchers found that the first association between a smell and an experience leaves a lasting impression in the brain. After one week, they could predict which associations would be remembered based on brain activity alone.

SourceWeizmann Institute of Science·JournalCurrent Biology·DateNov 9, 2009

UCSD discovery allows scientists for the first time to experimentally annotate genomes

Researchers at UCSD have made a breakthrough discovery that enables the experimental annotation of genomes. By combining multiple genome-scale measurements, they can identify the location and use of genomic elements with precision. This innovation has significant implications for metabolic engineering, disease research, and drug design.

SourceUniversity of California - San Diego·JournalNature Biotechnology·DateNov 9, 2009

Yoga boosts heart health

A study published in International Journal of Medical Engineering and Informatics found that yoga practitioners exhibit higher heart rate variability compared to non-practitioners. This suggests a strengthening of parasympathetic control, indicative of better autonomic function and a healthier heart.

SourceInderscience Publishers·JournalInternational Journal of Medical Engineering and Informatics·DateNov 9, 2009

Study: Credit crisis, debt load a double whammy for investment

A University of Illinois study found that firms with heavy long-term debt that came due during the recent credit crisis slashed investment more than three times as much as companies whose paybacks dodged the meltdown. This can have a ripple effect on the overall economy, leading to reduced employment and profits in the future.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalReview of Financial Studies·DateNov 9, 2009

Amyloid beta protein gets bum rap

Researchers found that low doses of amyloid beta protein improved learning and memory in healthy mice, while blocking the protein caused learning impairment. The study suggests that the optimal amount of amyloid beta is crucial for maintaining cognitive function.