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Science News for June 30, 2015


Water: The province of provinces

A recent study published in the International Journal of Water found that decentralized water regulation presents a theoretical benefit, allowing different populations to tailor spending to their particular circumstances. The research suggests that local decision-making can promote good governance and improve outcomes for Canadians.

SourceConcordia University·JournalInternational Journal of Water·DateJun 30, 2015

Offering healthier options at carryout stores improves bottom line

A Johns Hopkins Bloomberg School of Public Health pilot program found that offering healthier menu items at carryout stores increased gross revenue by an average 25%, not just improved health. The study, published in the American Journal of Health Promotion, suggests that convincing more carryouts to alter their menus can be profitable.

SourceJohns Hopkins Bloomberg School of Public Health·JournalAmerican Journal of Health Promotion·DateJun 30, 2015

Fingerprinting our sense of smell

Researchers at the Weizmann Institute create a complex mathematical formula to determine individual olfactory fingerprints, which are unique patterns based on personal scent preferences. This breakthrough could lead to early disease detection, non-invasive organ matching, and personalized medical treatments.

SourceWeizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateJun 30, 2015

Friction reduction breakthrough is no snake oil

Researchers have developed a surface texture inspired by snake skin that reduces friction by 40% in tests of high-performance materials. The discovery has significant implications for the reliability of mechanical components in machines such as cars and robots, particularly in dusty environments.

SourceIOP Publishing·JournalBioinspiration & Biomimetics·DateJun 30, 2015

Biodegradable, flexible silicon transistors

Researchers developed a biodegradable silicon transistor using cellulose nanofibrillated fiber substrate, offering a sustainable alternative to traditional silicon-based transistors. The device exhibited superior performance and microwave-frequency operation capabilities comparable to existing semiconductor transistors.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateJun 30, 2015

Pinaverium shows promising results for treatment of irritable bowel syndrome

A clinical trial confirms that pinaverium is an effective and safe option for treating irritable bowel syndrome (IBS), with a significantly higher percentage of patients reporting improved symptoms compared to the placebo group. The medication was also associated with common side effects, but no severe adverse effects were reported.

SourceAmerican Gastroenterological Association·JournalClinical Gastroenterology and Hepatology·DateJun 30, 2015

Spouses & relatives of celiac disease patients at risk for autoimmune diseases

A nationwide observational cohort study found that spouses and first-degree relatives of celiac disease patients are at a higher risk of developing nonceliac autoimmune diseases. The most common conditions were systemic lupus erythematosus, type I diabetes mellitus, and sarcoidosis. Genetic, environmental, and ascertainment bias mechan...

SourceAmerican Gastroenterological Association·JournalClinical Gastroenterology and Hepatology·DateJun 30, 2015

Osteopathic manipulative therapy significantly improves low back pain in postpartum women

A new study published in the Journal of the American Osteopathic Association found that osteopathic manipulative therapy (OMTh) decreased postpartum low back pain by over 70 percent in women who had given birth at least three months before beginning treatment. Participants reported a significant improvement in quality of life, with a 7...

SourceAmerican Osteopathic Association·JournalThe Journal of the American Osteopathic Association·DateJun 30, 2015

Europeans have unknowingly contributed to the spread of invasive plant species in the USA

A study found that anthropogenic factors, such as cultivation, played a more important role in plant invasiveness than previously thought. The research analyzed Central European plants introduced to North America and found that residence time in the invaded range and habitats occupied in native ranges were key drivers of invasion.

Graphene flexes its electronic muscles

Researchers at Rice University have discovered that graphene can be controlled by twisting it, creating an electronic flexoelectric effect. This property can be manipulated to vary the work function and engineer the band-structure stacking in bilayers or multiple layers.

SourceRice University·JournalThe Journal of Physical Chemistry Letters·DateJun 30, 2015

Repeated courses of antibiotics may profoundly alter children's development

A new study by NYU Langone Medical Center researchers found that multiple courses of commonly used antibiotics in children can have significant effects on their development. The study showed that antibiotic-exposed mice gained more weight and developed larger bones than untreated mice, while also disrupting the gut microbiome.

Seeing a supernova in a new light

A collaborative project between Caltech and the Weizmann Institute of Science observed a unique radiation spike in ultraviolet range, supporting a giant companion model for white dwarf explosions. The findings highlight the importance of ultraviolet-range observations in understanding type Ia supernovae.

Targeting mistreatment of women during childbirth

A systematic review of 65 studies in 34 countries identifies 7 areas of mistreatment and abuse during childbirth, including physical, sexual, and verbal abuse. The authors call for improved access to privacy, resources, and trained staff to reduce morbidity and mortality.

SourcePLOS·JournalPLOS Medicine·DateJun 30, 2015

Hospital-wide program for delirium, alcohol withdrawal and suicide/harm impacts readmission rates

A hospital-wide clinical improvement initiative implemented across all departments at BWH significantly reduced the 30-day readmission rate of patients at risk for DASH by nine percent. The program, which included standardized assessment tools and care management guidelines, improved patient outcomes and quality of life.

SourceBrigham and Women's Hospital·JournalThe Joint Commission Journal on Quality and Patient Safety·DateJun 30, 2015

A high-fat diet may alleviate mitochondrial disease

Researchers at Salk Institute find that a high-fat diet amplifies the effects of FGF21, granting mice resistance to obesity and associated diseases. The study provides insight into potential new therapies for mitochondrial and metabolic diseases in humans.

SourceSalk Institute·JournalProceedings of the National Academy of Sciences·DateJun 30, 2015

For women with bipolar disorder, sleep quality affects mood

Poor sleep quality predicts increased severity and frequency of depression and mania in women with bipolar disorder. For men, baseline depression score and neuroticism are stronger predictors of mood outcome. Improving sleep quality could help patients avoid mood episodes and improve quality of life.

SourcePenn State·JournalJournal of Affective Disorders·DateJun 30, 2015

New study identifies organic compounds of potential concern in fracking fluids

A new University of Colorado Boulder framework screened hundreds of organic chemical compounds used in hydraulic fracturing, identifying 15 as potentially hazardous groundwater contaminants based on their toxicity, mobility, and persistence. The study also predicted that 41 compounds would have 10% or more of their initial concentratio...

SourceUniversity of Colorado at Boulder·JournalEnvironmental Science & Technology Letters·DateJun 30, 2015

Epidemic of obesity and overweight linked to increased food energy supply

A recent study published in the Bulletin of the World Health Organization found a strong correlation between global increases in food energy supply and obesity rates. The research analyzed data from 69 countries and discovered that both body weight and food energy supply had increased in 81% of them between 1971 and 2010.

SourceBulletin of the World Health Organization·JournalBulletin of the World Health Organization·DateJun 30, 2015

A centipede from hell

The newly discovered centipede, Geophilus hadesi, is the world's deepest cave-dwelling centipede and has adapted to live exclusively in caves. It features unusual traits such as elongated antennae, trunk segments, and powerful jaws with poison glands.

SourcePensoft Publishers·JournalZooKeys·DateJun 30, 2015

ASTRO announces new journal Advances in Radiation Oncology and Editor Robert C. Miller, M.D.

The American Society for Radiation Oncology (ASTRO) has launched a new open-access journal, Advances in Radiation Oncology, with Founding Editor Robert C. Miller, M.D. The journal will publish original research on novel retrospectives and hypothesis-generating series, with a focus on practice transformation.

SourceAmerican Society for Radiation Oncology·JournalAdvances in Radiation Oncology·DateJun 30, 2015

To shed weight, go vegan

A meta-analysis of 12 randomized controlled trials found that vegetarian diets lead to significant weight loss, with vegan diets showing the greatest results, and benefits attributed to high intake of whole grains, fruits, and vegetables.

SourceSpringer·JournalJournal of General Internal Medicine·DateJun 30, 2015

Yosemite forest fire example of possible things to come

Researchers studied the aftermath of Yosemite's Rim fire, which burned 400 square miles in 2013, to understand its impact on forest recovery. They found that uncharacteristically high severity and altered dynamics, with potential for vegetation switching to shrubs if not restored through controlled burns.

SourcePenn State·JournalEcosystems·DateJun 30, 2015