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Science News for August 27, 2014


Breaking benzene

Researchers develop a novel catalyst to cleave aromatic carbon-carbon bonds in benzene at relatively mild temperatures, offering unprecedented mechanistic details on hydrocracking. This breakthrough could lead to more efficient and selective production of valuable materials from natural resources.

SourceRIKEN·JournalNature·DateAug 27, 2014

Orphaned children can do just as well in institutions

A three-year study across five low- and middle-income countries found that orphaned children in institutions are as healthy as those in family-based care. The type of residential setting was a poor predictor of child well-being, with country, neighborhood, and community being stronger predictors.

SourceDuke University·JournalPLOS ONE·DateAug 27, 2014

New study charts the global invasion of crop pests

A new study led by the University of Exeter warns that many global crop-producing countries will be overwhelmed by pests within the next 30 years if current trends continue. The research identifies the most invasive pest species, including fungi and nematodes, which are expected to spread rapidly due to climate change.

SourceUniversity of Exeter·JournalGlobal Ecology and Biogeography·DateAug 27, 2014

What lit up the universe?

Researchers from UCL and collaborators aim to determine whether numerous small galaxies or rare quasars produce more ultraviolet light. A forthcoming survey will analyze detailed measurements of a million distant quasars to map the neutral hydrogen gas in the universe, revealing its history.

SourceUniversity College London·JournalThe Astrophysical Journal Letters·DateAug 27, 2014

Promising new cancer therapy uses molecular 'Trash Man' to exploit a common cancer defense

Researchers at Virginia Commonwealth University Massey Cancer Center have developed a novel cancer therapy that leverages the autophagy defense mechanism to induce cell death in multiple myeloma cells. By targeting the p62 protein, the therapy disrupts autophagy and triggers apoptosis, resulting in increased effectiveness compared to t...

SourceVirginia Commonwealth University·JournalMolecular and Cellular Biology·DateAug 27, 2014

Soda tax for adolescents and exercise for children best strategies for reducing obesity

A study published in the American Journal of Preventive Medicine suggests that a one cent per ounce excise tax on sugar-sweetened beverages, combined with physical activity programs and an advertising ban, could effectively reduce childhood obesity. The tax is expected to generate significant revenue for additional obesity prevention a...

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateAug 27, 2014

Parents, listen next time your baby babbles

Parents who engage with their infant's babbling can accelerate their child's vocalizing and language learning, according to a new University of Iowa study. Infants whose mothers responded to their babbling showed an increase in developmentally advanced vocalizations and began directing more of their babbling towards their mothers.

Researchers switch emotion linked to memory

The study reveals that the hippocampus can freely associate with either positive or negative emotions, while the amygdala is hard-wired for specific experiences. This flexibility may help explain the success of behavioral therapy for phobias and PTSD, and suggests novel treatments for depression and other disorders.

SourceRIKEN·JournalNature·DateAug 27, 2014

Kessler Foundation scientists study impact of cultural diversity in brain injury research

Researchers emphasize the need for cultural competence in brain injury research and rehabilitation to address growing minority populations and their higher risk of poorer outcomes. Studies highlight persistent health disparities among minorities with acquired brain injury, underscoring the importance of patient-centered interventions.

SourceKessler Foundation·JournalNeuroRehabilitation An International Interdisciplinary Journal·DateAug 27, 2014

Pacific plate shrinking as it cools

Researchers at Rice University and the University of Nevada have found that cooling of the Pacific plate causes horizontal contraction and deformation. The rate of contraction is faster in younger parts of the plate, leading to a predicted 10 times faster contraction than older parts.

SourceRice University·JournalGeology·DateAug 27, 2014

Bronze Age wine cellar found

A Bronze Age wine cellar was uncovered at an ancient Canaanite palace in modern-day Israel, showcasing wine residue from over 40 jars. The jars contained chemical compounds indicative of wine, as well as subtle differences in ingredients or additives such as honey and cedar oil.

SourcePLOS·JournalPLOS ONE·DateAug 27, 2014

No cookie-cutter divorces, so what info should online co-parenting classes offer?

A University of Illinois researcher recommends online co-parenting classes be tailored to individual family needs, addressing emotional support and conflict resolution. The course should also cover less discussed topics like introducing a new partner to children and sex education, and provide resources for parents with limited vocabulary.

Photodynamic therapy vs. cryotherapy for actinic keratoses

A meta-analysis of four studies found that photodynamic therapy (PDT) is more effective than cryotherapy in clearing actinic keratoses (AKs), a common skin lesion caused by sun damage. At three months after treatment, patients treated with PDT had a 14% better chance of complete lesion clearance compared to those who received cryotherapy.

SourceJAMA Network·JournalJAMA Dermatology·DateAug 27, 2014

Gang life brings deep health risks for girls

A study of 188 African American females found that gang involvement is associated with high-risk behaviors such as casual sex partners, substance abuse, and HIV testing. Low self-esteem, emotional problems, and housing instability are also linked to a higher likelihood of gang involvement.

SourceUniversity of Chicago·JournalChildren and Youth Services Review·DateAug 27, 2014

How to prevent organic food fraud

Researchers from the Bavarian Health and Food Safety Authority and Wuerzburg University devised a new way to authenticate organic produce. Their report uses nuclear magnetic resonance spectroscopy to differentiate between conventional and organic tomatoes.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateAug 27, 2014

Self-deceived individuals deceive others better

A study by Newcastle University and the University of Exeter found that self-deceived individuals are viewed as more talented by their colleagues and are more likely to get promotions. This can lead to overestimation of others' abilities, increased risk-taking, and potentially disastrous consequences for organizations.

SourceUniversity of Exeter·JournalPLOS ONE·DateAug 27, 2014

Scripps Research Institute scientists link alcohol-dependence gene to neurotransmitter

Researchers identified the neurofibromatosis type 1 (Nf1) gene as a key regulator of gamma-aminobutyric acid (GABA), a neurotransmitter that lowers anxiety and increases feelings of relaxation. Variations in the human Nf1 gene are linked to alcohol-dependence risk and severity, suggesting a potential genetic basis for excessive drinking.

SourceScripps Research Institute·JournalBiological Psychiatry·DateAug 27, 2014

A prescription for better stroke care

Researchers found that giving a prescription to stroke patients before discharge increases short- and long-term stroke prevention by 70% and 40% respectively. The study suggests simple interventions like handing over prescriptions can improve patient care.

SourceSt. Michael's Hospital·JournalJournal of Stroke and Cerebrovascular Diseases·DateAug 27, 2014

Wolves susceptible to yawn contagion

Researchers found that wolves experience yawn contagion, with stronger social bonds increasing frequency, and females reacting faster than males to close associates' yawns. The results suggest a common ancestral trait of contagious yawning among mammals, revealing an emotional connection between individuals.

SourcePLOS·JournalPLOS ONE·DateAug 27, 2014

The roots of human altruism

A study led by Judith Burkart reveals that human altruism is linked to cooperative breeding among primate species, where young are cared for by multiple group members. This behavior, not associated with advanced cognitive skills or social tolerance, may have contributed to human exceptional cognition.

SourceUniversity of Zurich·JournalNature Communications·DateAug 27, 2014

Xenon exposure shown to erase traumatic memories

Researchers at McLean Hospital found that xenon gas can reduce memories of traumatic events, potentially treating post-traumatic stress disorder (PTSD) and other memory-related disorders. The study used an animal model to demonstrate the effectiveness of xenon in blocking fear responses for up to two weeks.

SourceMcLean Hospital·JournalPLOS ONE·DateAug 27, 2014

Lifetime of fitness: A fountain of youth for bone and joint health?

Research suggests that comprehensive fitness and nutrition regimens can minimize bone and joint health decline and maintain overall physical health in seniors. The study recommends individualized exercise programs with resistance, endurance, flexibility, and balance training, as well as proper nutrition to optimize performance.

SourceAmerican Academy of Orthopaedic Surgeons·JournalJournal of the American Academy of Orthopaedic Surgeons·DateAug 27, 2014

Protected areas proven to protect biodiversity

Researchers from Monash University and international collaborators analyzed past 30 years of research to determine the impact of protected areas on biodiversity. The study found that these areas generally have larger plant and animal populations and more species than adjacent non-protected areas.

SourceMonash University·JournalPLOS ONE·DateAug 27, 2014