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Science News Archive May 2009 - Page 8


Page 8 of 22

Snail venoms reflect reduced competition

A University of Michigan study found that snails' venoms evolved to target a broader array of prey when they experienced ecological release, allowing them to expand their diet and habitat. The research provides insight into the genetic basis of this phenomenon and its implications for our understanding of adaptation and evolution.

SourceUniversity of Michigan·JournalPLOS ONE·DateMay 20, 2009

Understanding the therapeutic process of mother-infant psychotherapy

The study explores the therapeutic process of mother-infant psychotherapy, highlighting its unique catalytic factors that promote change and growth through relational connection and the 'now moment'. The findings emphasize the importance of observing and responding to infant behavior, recognizing maternal experiences and capacities, an...

SourceBoston University School of Medicine·JournalInfant Mental Health Journal Infancy and Early Childhood·DateMay 20, 2009

Ultrasound more cost efficient than other medical imaging choices

A literature review published in Journal of Diagnostic Medical Sonography concludes that ultrasound provides accurate diagnoses at a lower cost than MRI and CT scans. The study's findings highlight the widespread adoption of ultrasound in various clinical settings, including obstetrics, cardiology, and emergency medicine.

SourceSAGE·JournalJournal of Diagnostic Medical Sonography·DateMay 20, 2009

Novel approach estimates nanoparticles in environment

A novel approach estimates that titanium dioxide nanoparticles are produced in increasing amounts, posing potential environmental and health risks. The study's findings suggest that up to 2.5 million metric tons of nanomaterial could be released into the environment by 2025.

SourceDuke University·JournalJournal of Environmental Science and Technology·DateMay 20, 2009

Skip this cocktail party

A study found high concentrations of pollutants in marine mammals' brains, including pesticides like DDTs and PCBs, as well as brominated flame retardants. The results have significant implications for the health of marine mammals, particularly their hearing and cognitive development.

SourceWoods Hole Oceanographic Institution·JournalEnvironmental Pollution·DateMay 20, 2009

Where do penguins go to dance?

The new children's book, Polar Eyes, explores Antarctica's diverse science program through Tanya Patrick's journey. The book features hands-on activities, quizzes, and odd facts to engage young minds, including the penguins' dance destination.

International team tracks clues to HIV

A research team led by Andrew Barron at Rice University identified specific molecules that can block the spread of HIV-1 PR by attaching themselves to its binding pocket. They used computer simulations to narrow down a collection of fullerenes and found two promising candidates.

SourceRice University·JournalJournal of Chemical Information and Modeling·DateMay 19, 2009

Obese moms, asthmatic kids

A new study found that obese mothers may be responsible for an increased risk of asthma in their children. Maternal obesity was associated with a 65% higher risk of developing asthma symptoms in offspring, regardless of other factors such as birth weight and BMI.

Tying education to future goals may boost grades more than helping with homework

A research review found that instilling the value of education and linking school work to future goals is key to boosting grades in middle school students. Parental involvement in conveying academic importance, relating educational goals to occupational aspirations, and discussing learning strategies had a positive impact on achievement.

SourceAmerican Psychological Association·JournalDevelopmental Psychology·DateMay 19, 2009

A new way of treating the flu

Scientists at Rensselaer Polytechnic Institute have discovered a new method to treat the flu by targeting two critical parts of the virus, hemagglutinin (H) and neuraminidase (N). This approach has shown strong binding potential to both H and N, offering hope for future flu drugs.

SourceRensselaer Polytechnic Institute·JournalEuropean Journal of Organic Chemistry·DateMay 19, 2009

Bolivian rainforest study suggests feeding behavior in monkeys and humans have ancient, shared roots

Researchers found that wild spider monkeys regulate their daily protein intake similarly to humans, with a focus on maintaining a consistent level regardless of seasonal food availability. This pattern is linked to the development of obesity in humans and may have evolutionary origins dating back far older than previously thought.

SourceOxford University Press UK·JournalBehavioral Ecology·DateMay 19, 2009

TB vaccine gets its groove back

Researchers at Vanderbilt University Medical Center have cracked the mystery of a failed TB vaccine by modifying it to reduce antioxidant production, leading to stronger immune responses in mice. The modified BCG vaccine could offer improved protection against pulmonary TB and serve as a platform for other vaccines.

HIV's march around Europe mapped

A recent study has mapped the spread of HIV-1 subtype B across Europe, revealing that popular tourist destinations like Greece, Portugal, and Spain are major sources of infection. The research found that viruses can be transmitted through travelers, highlighting the need for targeted prevention efforts beyond national borders.

SourceBMC (BioMed Central)·JournalRetrovirology·DateMay 19, 2009

New infectious diseases -- what's the risk?

People take precautions when aware of risk and believe effective actions are available; accurate communication is key to prevent mass scares. The journal review highlights the importance of risk perception in health behavior theories.

SourceSpringer·JournalInternational Journal of Behavioral Medicine·DateMay 19, 2009

'Super-recognizers,' with extraordinary face recognition ability, never forget a face

Researchers at Harvard University have discovered a group of individuals known as 'super-recognizers,' who possess an extraordinary ability to recognize faces, even after years of not seeing the person. This finding suggests that face recognition may be on a spectrum, with prosopagnosics at one end and super-recognizers at the other.

SourceHarvard University·JournalPsychonomic Bulletin & Review·DateMay 19, 2009

Pandemic passenger screening

A computer model developed by four US national laboratories helps airport authorities screen passengers for pandemic influenza, estimating false negatives and assessing risk. The simulation suggests key factors to reduce the spread of disease, including pre-flight screening, symptom testing on arrival, and advances in diagnostics.

SourceInderscience Publishers·JournalInternational Journal of Risk Assessment and Management·DateMay 19, 2009

Michigan scientist, ethicist urge scientists to speak out on environmental policy

A Michigan scientist and ethicist argue that environmental scientists have a responsibility to advocate for environmental policy. They analyze key arguments for and against advocacy, finding that most lack soundness. The researchers conclude that more active participation by scientists in policy matters is necessary to better society.

SourceMichigan Technological University·JournalConservation Biology·DateMay 19, 2009

Tone language is key to perfect pitch

Researchers found that students speaking East Asian tone languages fluently scored nearly 100% on a perfect pitch test, while those who were only fairly fluent or not fluent at all performed worse. The study suggests that nurture may play a significant role in developing this rare ability.

SourceUniversity of California - San Diego·JournalThe Journal of the Acoustical Society of America·DateMay 19, 2009

Promotional tests can discourage some of the best says new research from U of T's Rotman School

Promotional tests may deter top applicants, causing anxiety and negatively impacting job performance, according to a study by the University of Toronto's Rotman School. The research found that fairness perceptions were not linked to exam results, but rather with candidates' willingness to recommend the process.