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Science News Archive 2014 - Page 40


Page 40 of 376

Taking antibiotics during pregnancy increases risk for child becoming obese

A recent study by Columbia University's Mailman School of Public Health found that children exposed to antibiotics in the second or third trimester of pregnancy had a higher risk of childhood obesity at age 7. Additionally, delivery by Caesarean section was also associated with a higher risk of childhood obesity.

SourceColumbia University's Mailman School of Public Health·JournalInternational Journal of Obesity·DateNov 18, 2014

Clean energy 'bio batteries' a step closer

Researchers at the University of East Anglia have made a significant discovery in bio battery technology, enabling the generation of clean energy from bacteria. The study reveals how electrons hop across bacterial proteins and find that the rate of electrical transfer is dependent on protein orientation and proximity.

SourceUniversity of East Anglia·JournalJournal of The Royal Society Interface·DateNov 18, 2014

Using technology to decrease the knowledge gap between Ugandan men and women

A University of Illinois study found that combining video and lecture-demonstration training methods significantly narrowed the gender knowledge gap. Video training alone improved women's knowledge scores but did not close the gap between them and men.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of International Agricultural and Extension Education·DateNov 18, 2014

Two sensors in one

New nanoparticles can perform magnetic resonance imaging (MRI) and fluorescent imaging simultaneously, allowing for the tracking of specific molecules produced in the body. The particles were demonstrated to detect vitamin C in mice, showing strong fluorescent signals where vitamin C is present but little MRI contrast.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateNov 18, 2014

As temperatures rise, soil will relinquish less carbon to the atmosphere than predicted

A new computer model developed by researchers from the Lawrence Berkeley National Laboratory predicts that warming temperatures will return less soil carbon to the atmosphere than previously thought. The model takes into account the complex interactions between soil microbes and their surroundings, which vary over time and place.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Climate Change·DateNov 17, 2014

Middle managers and hermit crabs

Research finds middle managers are less likely to share their ideas with superiors as organizational hierarchy increases, leading to a lack of control and evaluation apprehension. The study suggests that top management can adjust the idea funnel to promote or counterbalance employee behavior.

SourceUniversity of California - Riverside·JournalStrategic Management Journal·DateNov 17, 2014

State-of-the-art integrated imaging system allows mapping of brain cells responsible for memory

Researchers developed an advanced imaging system to identify cells storing memory in a tiny worm, offering a new way to investigate molecular substrates of memory. The study may lead to understanding how memory loss occurs in humans and potentially develop therapies for memory disorders.

SourceInstitute for Integrated Cell-Material Sciences, Kyoto University·JournalProceedings of the National Academy of Sciences·DateNov 17, 2014

Women's fertility linked to detox element in diet

Researchers have found that selenium and selenoproteins are at elevated levels in large, healthy ovarian follicles, playing a critical role as an antioxidant during follicle development. This discovery could lead to better understanding of how to optimize selenium levels to improve women's chances of conceiving.

SourceUniversity of Adelaide·JournalMetallomics·DateNov 17, 2014

Study on hospital stays contributes to Hispanic Paradox

A new study by researchers from the University of North Texas found that Hispanics were hospitalized significantly fewer days during a 12-month period compared to non-Hispanic whites and blacks, and were more likely to survive hospital stays. This discovery contributes to the Hispanic Mortality Paradox, where Hispanics tend to outlive ...

SourceUniversity of North Texas·JournalJournal of Latina/o Psychology·DateNov 17, 2014

Physicians prescribe less brand name drugs when EHR default settings show generics first

A study found that programming electronic health records to make generic drugs the default choice increases generic medication prescribing rates, leading to cost savings and reduced healthcare spending. The intervention was effective in both ambulatory clinics and did not require additional effort from physicians.

SourceUniversity of Pennsylvania School of Medicine·JournalAnnals of Internal Medicine·DateNov 17, 2014

Subtle shifts in the Earth could forecast earthquakes, tsunamis

A University of South Florida-led team has discovered that subtle shifts in the earth's offshore plates can predict the size of future disasters. The researchers used high precision GPS to measure slight shifts on a fault line in Costa Rica, finding that slow slip events can release stress and strain before major earthquakes and tsunamis.

SourceUniversity of South Florida (USF Health)·JournalProceedings of the National Academy of Sciences·DateNov 17, 2014

Symmetrical knees linked to Jamaican sprinting prowess

A Rutgers-led study measures symmetry in elite track and field athletes, finding that symmetrical knees are associated with better times. The researchers discovered that the knees of Jamaican sprinters were more symmetrical than those of non-sprinting Jamaicans, with the most symmetrical knees belonging to 100-meter specialists.

SourceRutgers University·JournalPLOS ONE·DateNov 17, 2014

Graphene/nanotube hybrid benefits flexible solar cells

Rice University scientists have developed a novel cathode for dye-sensitized solar cells using graphene/nanotube hybrids, improving efficiency and reducing costs. The new material has a huge surface area, allowing for more efficient electron transfer and better contact with the electrolyte.

SourceRice University·JournalJournal of Materials Chemistry A·DateNov 17, 2014

Finding 'lost' languages in the brain

Researchers at McGill University found that infant experiences shape the unconscious brain, influencing adult development even after years of disuse. The study used functional MRI scans to compare brain activation patterns in girls with unilingual French-speaking families versus those adopted from Chinese-speaking families.

SourceMcGill University·JournalProceedings of the National Academy of Sciences·DateNov 17, 2014

Spice up your memory

A study published in the Asia Pacific Journal of Clinical Nutrition found that adding one gram of turmeric to breakfast improved working memory in older adults with pre-diabetes. The spice's active compound, curcumin, has been shown to reduce the risk of dementia and improve cognitive function.

SourceMonash University·JournalAsia Pacific Journal of Clinical Nutrition·DateNov 17, 2014