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Science News Archive November 2014 - Page 12


Page 12 of 31

Finding new ways to make drugs

Chemists developed a new way to manufacture natural chemicals by clipping smaller molecules together, enabling the efficient assembly of scarce anti-inflammatory drugs like pseudopterosin. This breakthrough could lead to cheaper ways to produce rare drugs in large quantities.

SourceAustralian National University·JournalNature Chemistry·DateNov 18, 2014

Paramecia need Newton for navigation

Research by Brown University scientists found that paramecia's buoyancy affects their ability to navigate flat surfaces. Under normal conditions, they use their sensory systems to turn and swim away, but with altered buoyancy, they get stuck at an angle, unable to complete the turn.

SourceBrown University·JournalPhysical Review Letters·DateNov 18, 2014

Virulent bacteria affecting oysters found to be a case of mistaken identity

A recent report reveals that Vibrio coralliilyticus is not only more widespread and deadly than previously believed but also infects various fish, shellfish, and oysters, including rainbow trout and larval brine shrimp. Researchers have developed a rapid diagnostic assay for this bacteria to assess problems in oyster and coral health.

SourceOregon State University·JournalApplied and Environmental Microbiology·DateNov 18, 2014

New protocol for imaging patients with Ebola

A new protocol for imaging Ebola patients has been developed to minimize risk of exposure, using portable computed radiography and thorough decontamination procedures. The step-by-step guide is published in the American Journal of Roentgenology and aims to improve physicians' ability to rapidly evaluate suspected cases.

SourceAmerican Roentgen Ray Society·JournalAmerican Journal of Roentgenology·DateNov 18, 2014

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