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Science News for April 27, 2016


Got good fat?

University of Bonn researchers have discovered a new method to measure the activity of energy-consuming brown fat cells in humans and mice. They found that microRNA-92a can be used as an indirect measure of brown fat cell activity, with a small blood sample sufficient for analysis.

SourceUniversity of Bonn·JournalNature Communications·DateApr 27, 2016

Polarization may cause climate communication to backfire

A Duke University study finds that framing climate change as a win-win issue can exacerbate opposition and trigger a significant negative effect among polarized audiences. Messages that conflict with audience's partisan identity fail to sway skeptics and instead make them more opposed to governmental action on the issue.

SourceDuke University·JournalEnvironmental Politics·DateApr 27, 2016

Influenza in the tropics shows variable seasonality

A study published in PLOS ONE identifies distinct patterns of seasonal influenza activity in the tropics and subtropics, grouping countries into eight geographical zones. These zones can inform targeted flu vaccination programs, providing valuable insights into optimal delivery timing and vaccine formulation.

SourcePLOS·JournalPLOS ONE·DateApr 27, 2016

Consumers reveal barriers to brain-training app-iness

A recent study investigated consumer attitudes towards brain-training apps, finding that over two-thirds reported improved thinking, memory, and attention. However, cost was the primary barrier to their use, highlighting a need for evidence-based apps. Strong positive expectations about app effectiveness may also drive user behavior.

SourceFrontiers·JournalFrontiers in Human Neuroscience·DateApr 27, 2016

Cellphone-sized device quickly detects the Ebola virus

A handheld instrument has been developed to detect the Ebola virus quickly and efficiently, allowing for faster treatment and real-time monitoring of viral loads. The device can process four samples simultaneously and produces results in under 37 minutes, significantly reducing the testing time required by conventional methods.

SourceAmerican Chemical Society·JournalAnalytical Chemistry·DateApr 27, 2016

Study: Even a little air pollution may have long-term health effects on developing fetus

New research suggests that even small amounts of air pollution may have long-term health effects on the developing fetus, increasing the risk of premature birth and lifelong neurological and respiratory disorders. The study found biological evidence of intrauterine inflammation in pregnant women exposed to high levels of air pollution.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironmental Health Perspectives·DateApr 27, 2016

All hairstyles are not created equal

Certain scalp-pulling hairstyles, such as tight ponytails and braids, are associated with traction alopecia in African-American women. Moderate-risk styles include thermal straightening, permanent waving, and wig use, while low-risk styles include loose buns and natural styles that avoid chemicals.

SourceJohns Hopkins Medicine·JournalJournal of the American Academy of Dermatology·DateApr 27, 2016

Advancing ingenuity

Five Harvard research projects have received sustaining funding through the Physical Sciences & Engineering Accelerator, which aims to bridge the 'chasm of death' between discovery and product development. The funded projects include a shell scripting language for improved security, a pattern-detection algorithm for enhanced drug evalu...

Slow worms react quickly to climate change

Researchers exposed small worms to artificial climate change, finding that a half-degree warmer soil caused rapid genome changes. The study provides insight into evolution's ability to adapt to climate change, suggesting it may be more resilient than previously thought.

SourceAarhus University·JournalGlobal Change Biology·DateApr 27, 2016

Breast cancer progression -- the devil is in the detail

Breast cancer cells challenged with a small-molecule inhibitor targeting specific invasive properties switch to an alternative mode-of-action, rendering them even more aggressive. The results suggest that inhibiting one pathway may not block all aggressiveness in breast cancer cells.

The Lancet Diabetes & Endocrinology: Living in a high-deprivation neighborhood has long term health effects, according to unique refugee relocation study

A unique study of 60,000 refugee immigrants in Sweden found that living in high-deprivation neighborhoods significantly increased the risk of developing type 2 diabetes over time. The study suggests a direct link between neighborhood deprivation and health, particularly for vulnerable populations.

SourceThe Lancet·JournalThe Lancet Diabetes & Endocrinology·DateApr 27, 2016

Study tracks perceptions of making ethical purchases

A new study from Simon Fraser University's Beedie School of Business found that consumers earning moderate to high incomes are viewed as moral for purchasing ethical goods, while those on welfare are judged immoral. This disparity has implications for charitable organizations and the decisions made by individuals on financial aid.

SourceSimon Fraser University·JournalJournal of Consumer Research·DateApr 27, 2016

Fireflies light the way to female HIV transmission

Scientists have identified hundreds of infected cells at different points of initial entry and developed a technology that lights up the location of first cells to be infected. This discovery will enable researchers to develop more effective vaccines against HIV by targeting the primary target of transmission, Th17 cell.

SourceNorthwestern University·JournalCell Host & Microbe·DateApr 27, 2016

Serotonin reduces apnea and could be a clue to understanding sudden infant death syndrome

Researchers found that serotonin shortens apnoeic events by interacting with the 5-HT3 receptor, which is highly expressed in healthy babies. This discovery may provide a new lead in understanding and treating SIDS and asphyxia., Serotonin's role in promoting inspiration and stopping apnea could be key to preventing these infant deaths.

SourceThe Physiological Society·JournalExperimental Physiology·DateApr 27, 2016

Scientists teaching machines to make clinical trials more successful

Researchers use machine learning to analyze factors influencing patient recruitment, predicting acceptance rates of up to 72% compared to traditional methods. The algorithm analyzes objective and subjective factors, including demographics, attitudes towards medical research, and health conditions.

SourceCincinnati Children's Hospital Medical Center·JournalJournal of the American Medical Informatics Association·DateApr 27, 2016

Decoding Zika to fight future outbreaks

The study details the transmission of Zika virus through mosquitoes and human-to-human contact, as well as its association with neurological disorders and birth defects. Researchers emphasize the need for antiviral agents and vaccines to combat the outbreak.

SourceFrontiers·JournalFrontiers in Microbiology·DateApr 27, 2016

It's the rain's fault

Researchers discovered that rainwater can channel up the Alpine Fault and overwhelm contributions from mantle-derived fluids, focusing it onto the fault. This finding sheds light on the trigger mechanisms for major seismic events and has implications for understanding catastrophic earthquakes.

SourceUniversity of Southampton·JournalEarth and Planetary Science Letters·DateApr 27, 2016

Scientists establish first map of the sea lion brain

Researchers at Vanderbilt University have created a detailed map of the California sea lion's brain, highlighting its unique somatosensory system. The study revealed specific areas in the brain responsible for processing touch information from whiskers and flippers, similar to those found in mice and humans.

SourceVanderbilt University·JournalJournal of Comparative Neurology·DateApr 27, 2016

Contamination in North Dakota linked to fracking spills

A Duke University study found high levels of contaminants in brine-laden wastewater from fracking spills, exceeding federal drinking water guidelines. Soil samples contained higher levels of radioactivity downstream from spill sites, suggesting radium builds up in the environment.

SourceDuke University·JournalEnvironmental Science & Technology·DateApr 27, 2016

From retina to cortex: Max Planck researchers discover an unexpected division of labor

Scientists at MPFI have discovered a simple rule that explains how neural circuits combine information supplied by different types of cells in the retina to build a coherent representation of visual information. The discovery reveals that fine-scale retinal spatial information is preserved by OFF response regions, while ON response reg...

Emotion detector

A computer algorithm can recognize human emotions with high accuracy, transferring players' emotions to avatars or communicating with other players. The emotion detector system uses mathematical processing to analyze eyebrow position, eye openness, and mouth shape to correlate with basic human emotions.

SourceInderscience Publishers·JournalInternational Journal of Computational Vision and Robotics·DateApr 27, 2016

Pitt computational model finds new protein-protein interactions in schizophrenia

Researchers at the University of Pittsburgh School of Medicine have developed a computational model to discover new protein-protein interactions associated with schizophrenia. The study identified over 500 never-before-known PPIs, which could lead to greater understanding of the disease and its relation to other complex diseases.

Dexamethasone for asthma in the ER: Better compliance, nearly equal effectiveness

A study published in Annals of Emergency Medicine found that dexamethasone was effective in treating mild to moderate asthma in ER patients with only slightly higher relapse rates compared to a 5-day course of prednisone. The single-dose medication eliminates prescription adherence barriers such as forgetfulness and cost.

SourceAmerican College of Emergency Physicians·JournalAnnals of Emergency Medicine·DateApr 27, 2016

University of Illinois researchers create 1-step graphene patterning method

University of Illinois researchers have created a simple and scalable graphene patterning technique using stencil masks fabricated via a laser cutter. This approach enables rapid design iterations and pattern replications, promoting cleaner quality graphene patterns without polymeric transfer layers or organic solvents.

Leading nutrition experts speak up about malnutrition

Leading nutrition experts discuss the complexities of modern malnutrition, affecting vulnerable populations such as children, elderly, and sick individuals. The Journal of the Academy of Nutrition and Dietetics explores various facets of malnutrition, including evidence-based practices, hospital malnutrition, and policy recommendations.

SourceElsevier Health Sciences·JournalJournal of the Academy of Nutrition and Dietetics·DateApr 27, 2016

Veterans and their partners see less trauma and distress symptoms after intensive retreat

A recent study found that veterans and their romantic partners who participated in an intensive retreat model showed a significant reduction in trauma symptoms. The retreat, which included therapeutic group and couple counseling, as well as relaxation activities, was effective in reducing both veteran and partner distress levels.

Expert panel evaluates role of osteoporosis medications in fracture healing

A consensus report from the International Osteoporosis Foundation Fracture Working Group recommends that patients with recent fractures should start osteoporosis medications as soon as possible. The panel agreed that anabolic agents like teriparatide may have a beneficial effect on fracture healing, while bisphosphonates may delay it.

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateApr 27, 2016

Transforming teaching with Twitter

A new study shows that Twitter can enhance middle school learning, with students reporting significant increases in exposure to reputable science leaders, broadening their audience, and connecting science to their lives. The research highlights the potential of open social networking tools like Twitter for personalizing education.

SourceUniversity of Vermont·JournalMiddle School Journal·DateApr 27, 2016