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Science News for May 31, 2012


Listening in, researchers learn about end-of-life communication

A study published in the Journal of Pain and Symptom Management found that prognosis was discussed in 93% of conversations, with quality of life focused more often than survival. The conversation's tone varied depending on whether the patient was present, with pessimistic discussions more likely when family members were alone.

SourceUniversity of Rochester Medical Center·JournalJournal of Pain and Symptom Management·DateMay 31, 2012

Cosmic calculations

A University of Delaware-led research team has developed more accurate calculations for the interactions between molecules of hydrogen and carbon monoxide, essential for spectroscopy in astrophysics. These advancements enable researchers to analyze molecular clouds where stars are born with greater precision.

SourceUniversity of Delaware·JournalScience·DateMay 31, 2012

Dual effect on tumor blood vessels

Scientists found that Ang-2 regulates angiogenesis through TIE-2 and integrin signaling, leading to two independent effects on tumor blood vessels. This discovery prompts the development of new therapies targeting Ang-2.

SourceHelmholtz Association·JournalJournal of Clinical Investigation·DateMay 31, 2012

Researchers at Boston Children's Hospital identify a genetic cause for CLOVES syndrome

Researchers at Boston Children's Hospital have identified the genetic basis for CLOVES syndrome, a rare congenital malformation and overgrowth disorder. They found that between six and 60 percent of cells in affected tissues contained mutations in a gene called PIK3CA, which activate cell division and growth pathways.

SourceBoston Children's Hospital·JournalAmerican Journal of Human Genetics·DateMay 31, 2012

Fantasizing about your dream vacation could lead to poor decision-making

Research suggests that fantasizing about idealized future scenarios can influence people's preferences for learning about the positives over negatives. This can impact decision-making, even for those considering careful deliberations. Positive fantasies can mimic the effects of intentions and lead to biased information acquisition.

SourceSociety for Personality and Social Psychology·JournalPersonality and Social Psychology Bulletin·DateMay 31, 2012

Advanced visualization techniques could change the paradigm for diagnosis and treating heart disease

Researchers at Mount Sinai School of Medicine are pioneering a new way to diagnose heart disease by focusing on fluid dynamics, not muscle mechanics. This approach uses advanced ultrasound techniques to visualize blood flow in the heart, providing clues for early detection and effective therapeutic interventions.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of the American College of Cardiology·DateMay 31, 2012

New treatment for irritability in autism

Researchers found that N-acetylcysteine significantly decreased irritability in children with autism, while being well-tolerated and causing minimal side effects. A large randomized controlled trial is needed to confirm the findings and explore potential treatment benefits for other symptoms.

SourceElsevier·JournalBiological Psychiatry·DateMay 31, 2012

Drug companies moving toward green goals

Many pharmaceutical companies are making progress in embracing green chemistry principles, reducing waste generation and operating more environmentally friendly ways. The American Chemical Society's Green Chemistry Institute is helping its members share best practices and compare progress.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateMay 31, 2012

Is there a 'healthy' obesity gene?

A recent study found that a specific gene linked to fat tissue inflammation may protect against diet-induced obesity-related health problems. The researchers discovered that overexpressing this gene increased fat deposition while suppressing inflammatory responses and improving insulin sensitivity in genetically modified mice.

SourceTexas A&M AgriLife Communications·JournalJournal of Biological Chemistry·DateMay 31, 2012

Sex: It's a good thing

Researchers found that plant species reproducing sexually have stronger disease resistance due to increased adaptive evolution of the chitinase gene. This supports the theory that sex provides a genetic advantage in adapting to environmental changes.

SourceMichigan Technological University·JournalJournal of Evolutionary Biology·DateMay 31, 2012

Geoengineering: A whiter sky

Researchers found that blocking 2% of the sun's light would make the sky three-to-five times brighter and whiter, while increasing global photosynthetic activity could pull more carbon dioxide out of the atmosphere. However, this method may also reduce the effectiveness of solar power.

SourceCarnegie Institution for Science·JournalGeophysical Research Letters·DateMay 31, 2012

Baby wipes as safe as using water, study finds

A University of Manchester study found Johnson's Baby Extra Sensitive Wipes equivalent to water in hydrating newborn skin, challenging current NICE guidelines. The trial involved 280 babies and showed no significant differences in hydration or secondary outcomes, except for a slight increase in napkin dermatitis.

SourceUniversity of Manchester·JournalBMC Pediatrics·DateMay 31, 2012

Physics to tackle how food is cooked in future

A growing population faces challenges of feeding itself through cleaner and more efficient methods. Innovations in flameless cooking, such as the Oorja stove, offer promising solutions. Researchers are exploring new technologies to reduce costs and increase accessibility, aiming to generate 100W of electrical power from confined gas.

SourceIOP Publishing·JournalPhysics World·DateMay 31, 2012

Do low-carb diets damage the kidneys?

A low-carbohydrate high-protein diet has been found to be safe for healthy obese patients' kidney function and fluid balance, unlike a low-fat diet. However, additional studies are needed to evaluate its effects in individuals with pre-existing kidney disease or other health conditions.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateMay 31, 2012

Singing in the rain: Technology improves monitoring of bird sounds

Researchers at Oregon State University have developed an AI-powered system to monitor bird sounds, identifying species and changes in habitat loss or climate change. The technology uses a multi-instance machine learning approach, allowing for efficient ecological monitoring, and can be applied to other forest noises and animal species.

SourceOregon State University·JournalThe Journal of the Acoustical Society of America·DateMay 31, 2012

Mystery of monarch migration takes new turn

An Emory University analysis suggests environmental factors trigger the monarchs' choice of winter homes, rather than genetic differences. The researchers found extensive gene flow between eastern and western monarchs, challenging the prevailing theory of distinct populations.

SourceEmory Health Sciences·JournalMolecular Ecology·DateMay 31, 2012

Grazing snails rule the waves

A major new study found that small marine snails have a profound impact on the marine ecosystem, removing almost 70% of plant material from the sea floor. The research, led by Associate Professor Alistair Poore, reveals that snails are a key driver of herbivory in marine habitats.

SourceUniversity of New South Wales·JournalEcology Letters·DateMay 31, 2012

Rewriting DNA to understand what it says

The new study proposes a way to effectively introduce carefully planned DNA segments into genomes of living cells and test the effects. The technology enables simultaneous introduction of tens of thousands of DNA regions into tens of thousands of living cells, allowing for precise measurement of results within a single experiment.

SourceWeizmann Institute of Science·JournalNature Genetics·DateMay 31, 2012

Liberals vs. conservatives: How politics affects charitable giving

A new study found that liberals and conservatives tend to donate more to charities aligned with their respective moral foundations. Republicans are more likely to donate when a charity supports traditional values and loyalty, while Democrats are more inclined to donate when the emphasis is on equality and protection from harm.

SourceRice University·JournalInternational Journal of Research in Marketing·DateMay 31, 2012

'Intelligent medicine' erases side effects

Scientists at Aarhus University have developed a new technology that conjugates glucocorticoid steroids to antibodies binding to macrophage receptors, reducing side effects and increasing potency. This intelligent medicine shows promise for treating various inflammatory diseases, including autoimmune disorders.

SourceAarhus University·JournalMolecular Therapy·DateMay 31, 2012

New research shows runners can improve health and performance with less training

A study published in the Journal of Applied Physiology found that runners can improve their performance and health by reducing their training time to 20-30 minutes per session. The research involved 18 moderately trained runners who followed the 10-20-30 training concept, which consists of 5-minute running intervals with rest periods.

SourceUniversity of Copenhagen·JournalJournal of Applied Physiology·DateMay 31, 2012