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Science News for June 21, 2010


Elsevier pilots PeerChoice in Chemical Physics Letters

Elsevier has launched a new pilot program called PeerChoice, which allows reviewers to choose articles they want to review based on their expertise and interest. This approach aims to increase the efficiency and effectiveness of the peer review process, while maintaining high-quality reviews.

SourceElsevier·JournalChemical Physics Letters·DateJun 21, 2010

National School Lunch Program increases educational achievement

The study found that participation in the National School Lunch Program significantly increases educational opportunity and attainment, while having an insignificant effect on adult health levels. The program encouraged children to attend school more than they would have without it, based on data from the U.S. Census.

SourceWiley·JournalJournal of Policy Analysis and Management·DateJun 21, 2010

A crack in the case for supersolids

Recent research challenges previous observations of supersolid helium, proposing that the phenomenon may be caused by quantum plasticity. The study's findings have significant implications for our understanding of ultracold solid helium and its potential to exhibit counterintuitive characteristics.

SourceAmerican Physical Society·JournalPhysical Review Letters·DateJun 21, 2010

NSF funds mathematical research at Stevens

The National Science Foundation (NSF) is funding a semester-long program on geometric, combinational, and computational group theory at the Centre de Recherches Mathmatiques in Montreal. Researchers will work together to discuss perspectives for advancing the field and disseminate knowledge among an international community of experts.

NIH-supported study finds novel pathway may open doors for new blood pressure treatments

A recent NIH-supported study has discovered a novel pathway that may lead to the development of new treatments for high blood pressure. By increasing certain proteins in mouse blood vessels, researchers were able to relax the vessels and lower blood pressure, reducing damage to the kidneys compared to normal mice.

Large medical center reduces cumulative radiation exposure and CT scans through imaging algorithm

A large medical center implemented an imaging algorithm to reduce cumulative radiation exposure and CT scans for patients with aneurysmal subarachnoid hemorrhages. The study showed a 25.6% decrease in mean number of CT examinations per patient and a 12.1% overall reduction in cumulative radiation exposure.

SourceAmerican College of Radiology·JournalAmerican Journal of Roentgenology·DateJun 21, 2010

Abusive mothering aggravates the impact of stress hormones

A study by Dr. Regina Sullivan and colleagues reveals that abusive mothering in rat pups leads to disrupted social behavior and increased engagement of the amygdala, a region involved in regulating stress and emotion. The findings provide insights into the neurobiological origins of psychopathology stemming from abuse.

SourceElsevier·JournalBiological Psychiatry·DateJun 21, 2010

New 2009 Impact Factors soar for newest Cell Press journals

The 2009 Journal Citation Reports reveals a surge in Impact Factors for Cell Press journals, with Cell Stem Cell and Cell Host and Microbe leading the charge. Cancer Cell also continues to grow, while Molecular Cell sees an impressive 13% increase, demonstrating the growing importance of these publications in the scientific community.

SourceElsevier·JournalCell·DateJun 21, 2010

Encouraging results from the largest clinical study ever conducted on treating depression with Omega-3

A large clinical study found Omega-3 supplementation to be effective in improving depression symptoms among patients with unipolar depression unaccompanied by anxiety. The study used high-quality EPA supplements and demonstrated efficacy comparable to conventional antidepressant treatments.

SourceUniversity of Montreal Hospital Research Centre (CRCHUM)·JournalJournal of Clinical Psychiatry·DateJun 21, 2010

Cycad pest uses small size to hide from predators

Researchers have found that a tiny alien insect pest called cycad aulacaspis scale (CAS) can hide in hard-to-reach areas of native cycad plants, allowing it to evade natural enemies. The study's findings suggest the need for a new biological control organism that can target CAS in its secret hiding places.

SourceUniversity of Guam·JournalHortScience·DateJun 21, 2010

Ear tubes appear safe for children with cochlear implants

A study found that ear tubes do not increase the risk of complications in children with cochlear implants. The authors suggest that ear tube management does not adversely affect outcomes in pediatric ears. The study included 78 ears from 62 children, with no cases of meningitis or removal of cochlear implants due to infection.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateJun 21, 2010

Ocean stirring and plankton patchiness

Computer simulations reveal how ocean stirring and mixing create filamentary structures in plankton patches, resisting dispersal. The research, supported by the Natural Environmental Research Council and the Engineering and Physical Sciences Research Council, provides new insights into plankton patchiness.

SourceNational Oceanography Centre, UK·JournalPhysical Review E·DateJun 21, 2010

Humans have a mighty bite

A new study found that early modern humans didn't need tools or cooking to process hard foods; instead, they may have lost ability to eat tough items like tubers or leaves. Modern humans have efficient bites using less-powerful jaw muscles, contrary to previous suggestions about a weaker bite in favor of a larger brain.

Increasing potato production

Researchers found that improving soil structure was a significant variable contributing to positive potato yield. Supplementing traditional soil sampling with spectral measurement provided detailed insights into how the potato crop interacts with its environment.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateJun 21, 2010

More than skin deep, tanning product of sun's rays

Researchers found that tanning is a response to varying levels of ultraviolet radiation, particularly in middle and high latitudes. This adaptation helps protect humans from harmful effects of sunlight, including vitamin D deficiency and folate destruction.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJun 21, 2010

Researchers at Rensselaer Polytechnic Institute develop new method for mass-producing graphene

A new technique enables large-scale production of high-quality graphene at room temperature using a molecular wedge, resulting in undamaged graphene dispersed in water. The researchers used the graphene to build chemical sensors and ultracapacitors with high-performance applications in environmental sensing and energy storage.

SourceRensselaer Polytechnic Institute·JournalNano Letters·DateJun 21, 2010

Harmful bacteria carried by pigeons

Researchers found Campylobacter jejuni and Chlamydophila psittaci in 69.1% and 52.6% of pigeons in Madrid, respectively. These bacteria can cause diarrhea in humans through aerosols, direct contact, or contaminated food and water.

SourceBMC (BioMed Central)·JournalActa Veterinaria Scandinavica·DateJun 21, 2010

Physician-journalist guidelines proposed in wake of Haiti earthquake

The article proposes three rules for physician-journalists covering disasters, including prioritizing medical emergencies over reporting duties and seeking parental consent before featuring children on news reports. These guidelines aim to balance the dual responsibilities of physician-reporters and protect their patients from exploita...

SourceSAGE·JournalElectronic News·DateJun 21, 2010

New drugs to relieve cancer pain

Researchers have discovered a new group of drugs that could provide effective cancer pain relief with minimal side effects. The drugs, developed in collaboration between the Universities of Leicester and Ferrara, act on two targets simultaneously to reduce tolerance.

Country action is needed for maternal and child health in Africa

Two new articles analyze the current status of maternal, newborn, and child health in Africa, identifying interventions that hold the greatest potential for preventing maternal and child deaths. The studies conclude that prioritizing high-impact outreach interventions could save millions of lives and cost an estimated $1.21 per capita.

SourcePLOS·JournalPLOS Medicine·DateJun 21, 2010

JDR increases its 5-Year SIF and remains number one dental journal of 64 in its category

The Journal of Dental Research (JDR) has maintained its number one ranking in the 'Dentistry, Oral Surgery & Medicine' category, according to the new 2009 Five-Year Scientific Impact Factor (SIF) rankings. The JDR's SIF increased from 3.966 to 4.195, demonstrating its continued importance and relevance in the field.

Seasonality of child abuse a myth

A new study of child homicides found that fatalities are evenly distributed across all months, contradicting widespread notions of increased risk during winter holidays. Experts emphasize that prevention efforts should be a year-round priority, as common stressors on caregivers like tantrums and accidents occur throughout the year.

SourceIndiana University School of Medicine·JournalThe Journal of Pediatrics·DateJun 21, 2010