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Science News for January 7, 2016


Valuing your time more than money is linked to happiness

New research published by the Society for Personality and Social Psychology found an almost even split between people who value their time or money, with prioritizing time associated with greater happiness. The study, which included over 4,600 participants, also found that older people were more likely to prioritize their time.

SourceSociety for Personality and Social Psychology·JournalSocial Psychological and Personality Science·DateJan 7, 2016

Saliva test to detect GHB and alcohol poisonings

Researchers developed a saliva-based test detecting methanol, ethanol, ethylene glycol, propan 1,3 glycol and γ-hydroxybutyric acid. The test uses gas chromatography-differential mobility spectrometry for accurate detection of toxic levels in saliva samples.

SourceIOP Publishing·JournalJournal of Breath Research·DateJan 7, 2016

'Window of recovery' can reopen after stroke

Studies show that inducing a second stroke nearby in the brains of mice can help them regain motor function to pre-stroke efficiency. This suggests that the optimal recovery window after a stroke may not be permanently closed and can reopen under certain conditions.

SourceJohns Hopkins Medicine·JournalNeuroRehabilitation An International Interdisciplinary Journal·DateJan 7, 2016

Negotiation tip: Gain sympathy and gain the advantage

Research by Laura Kray at UC Berkeley's Haas School of Business found that sympathy can motivate stronger parties to help weaker ones, leading to more compassionate solutions. Being transparent about misfortune is more effective when initiated by a low-power negotiator or someone in the weaker position.

SourceUniversity of California - Berkeley Haas School of Business·JournalOrganizational Behavior and Human Decision Processes·DateJan 7, 2016

Tiny 'flasks' speed up chemical reactions

Researchers at the Weizmann Institute of Science have created miniature 'flasks' that can accelerate chemical reactions by trapping molecules in a highly selective manner. The dynamic and reversible clusters can be reused multiple times, making them useful for applications such as drug delivery and industrial manufacturing.

SourceWeizmann Institute of Science·JournalNature Nanotechnology·DateJan 7, 2016

Overcoming hurdles to climate change adaptation in the Arctic

Researchers found that Arctic communities' ability to adapt to climate change is hindered by non-climatic factors such as resource availability, local governance, and economic disparities. However, with the right policies and practices, these communities can overcome these hurdles and successfully adapt to projected changes in climate.

SourceMcGill University·JournalNature Climate Change·DateJan 7, 2016

Religious beliefs don't always lead to violence

Research finds that thinking from God's perspective decreases biased valuation of non-believers' lives by almost 30%. This contradicts common assumptions about faith leading to violence. The study, published in PNAS, explores how Palestinian youth made moral choices from their own perspectives and Allah's perspective.

SourceCarnegie Mellon University·JournalProceedings of the National Academy of Sciences·DateJan 7, 2016

Snappy Sleep Stager system identifies gene related to shorter sleep

Researchers at RIKEN QBiC have developed a new method for monitoring mouse sleep cycles using the Snappy Sleep Stager, a non-invasive and automated system. The system has identified a new short-sleeper gene, Nr3a, which is associated with schizophrenia, Alzheimer's disease, and depression, all of which are linked to sleep disturbances.

SourceRIKEN·JournalCell Reports·DateJan 7, 2016

With the right algorithms: Optimizing cell cycle analysis

Scientists have developed a new method for classifying cells based on large population of cell images, allowing for high specificity and accuracy. The approach uses machine learning to analyze bright and darkfield images, opening up new perspectives for cell cycle analysis and potential applications in various contexts.

Uni experts aim to cut the costs of pressure ulcers

Research by University of Huddersfield experts highlights the need for nationwide improvements in staff knowledge and skills to prevent pressure ulcers. The team's findings suggest that a national education programme is necessary to promote patient health-related quality of life and reduce healthcare costs associated with pressure damage.

SourceUniversity of Huddersfield·JournalJournal of Wound Care·DateJan 7, 2016

Single-chip laser delivers powerful result

A Northwestern University team has developed a mid-infrared tunable laser integrated into an on-chip amplifier, demonstrating an order-of-magnitude increase in output power. The new technology allows for adjustable wavelength output, modulators, and amplifiers in a single package, enabling more efficient detection of hazardous chemicals.

SourceNorthwestern University·JournalApplied Physics Letters·DateJan 7, 2016

Current malaria treatment fails in Cambodia due to drug-resistant parasites

A recent study found that dihydroartemisinin-piperaquine treatment has failed in certain provinces of Cambodia due to parasite resistance. The WHO has reinstated artesunate plus mefloquine as the first-line treatment in these areas. New surveillance and clinical trials are needed to track the spread of piperaquine resistance.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalThe Lancet Infectious Diseases·DateJan 7, 2016

Epigenetic regulation of metastatic breast cancer progression may guide prognosis and future therapy

Researchers at Boston University School of Medicine identified a metastasis suppressor gene called serum deprivation response (SDPR), which plays a role in breast cancer progression. Over-expression of SDPR reduces the incidence of metastatic disease in models of aggressive, metastatic breast cancer cells.

SourceBoston University School of Medicine·JournalProceedings of the National Academy of Sciences·DateJan 7, 2016

Penguins, food and robots

Researchers used tagged penguins and an autonomous underwater vehicle to study competition between Adélie and gentoo penguins for the same food resources. The study found that gentoo penguins shifted behavior to deeper depths when competing with Adélie penguins, suggesting a strategy to limit competition.

SourceUniversity of Delaware·JournalScientific Reports·DateJan 7, 2016

Eat less and be happy -- really!

Researchers found that offering smaller portions consistently motivates individuals to choose healthier options, regardless of hunger levels. Desirable non-food rewards also increase motivation for choosing smaller portions.

SourceCornell Food & Brand Lab·JournalJournal of the Association for Consumer Research·DateJan 7, 2016

A 'printing press' for nanoparticles

Researchers at McGill University have developed a method to assemble gold nanoparticles using DNA structures, allowing for the creation of novel materials with unique properties. This 'printing press' for nanoparticles has the potential to facilitate use in electronic and medical applications.

SourceMcGill University·JournalNature Chemistry·DateJan 7, 2016

Slow stem cell division may cause small brains

Researchers at Duke University found that delayed neural stem cells can cause premature differentiation into neurons and increased cell death, leading to smaller brain development. This study provides new insights into the mechanisms of microcephaly and its potential links to other neurodevelopmental disorders.

SourceDuke University·JournalNeuron·DateJan 7, 2016

1 in 4 kids sexually harassed by friends online

A new study led by Michigan State University found that nearly 1 in 4 children experience online sexual harassment at the hands of their own friends. Parents can help mitigate this issue by having open and honest conversations with their kids about online safety and boundaries.

SourceMichigan State University·JournalJournal of Contemporary Criminal Justice·DateJan 7, 2016

Study shows superiority of chromoendoscopy in dysplasia detection in patients with IBD

A long-term surveillance study shows chromoendoscopy is more effective than random biopsy or white-light colonoscopy in detecting dysplasia in patients with inflammatory bowel diseases. Chromoendoscopy identified precancerous lesions in 27 out of 208 examinations, while white-light examination detected them in only 11.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalClinical Gastroenterology and Hepatology·DateJan 7, 2016

Portable NIST kit can recover traces of chemical evidence

A portable version of NIST's 'headspace analysis' technique has been developed, enabling detectives to carry a convenient version of the method in a briefcase-sized kit. The kit can recover vapors from solid or liquid compounds, including environmental pollutants and forensic evidence, with collection times as fast as 3 seconds.

SourceNational Institute of Standards and Technology (NIST)·JournalJournal of Chromatography A·DateJan 7, 2016

Feinstein Institute clinical study reveals new approach to diagnosing low back pain

A new clinical study at The Feinstein Institute for Medical Research has discovered a personalized approach to diagnose low back pain by analyzing serum levels of proinflammatory cytokine interleukin-6 (IL-6). Higher IL-6 levels were found in individuals with lumbar intervertebral disc disease, suggesting that biochemical profiling can...

SourceNorthwell Health·JournalArthritis Research & Therapy·DateJan 7, 2016