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Science News Archive 2015 - Page 63


Page 63 of 402

Large-scale study on Lumos Labs' online cognitive assessment published in Frontiers in Psychology

A large-scale study published in Frontiers in Psychology found the NeuroCognitive Performance Test (NCPT) to be a reliable and valid measure of cognitive performance. The NCPT assesses various cognitive domains, including working memory, reasoning, and attention, with good test-retest reliability and sensitivity to age-related changes.

SourceLumosity·JournalFrontiers in Psychology·DateNov 3, 2015

New genetic risk marker for late-life depression

A new study finds that the APOE epsilon 4 allele is associated with an increased risk of late-life depression, even after controlling for Alzheimer's disease. The presence of this allele predicts future depression in older adults, highlighting its potential as a marker for prevention and early detection.

SourceElsevier·JournalBiological Psychiatry·DateNov 3, 2015

Sexual dysfunction is prevalent among recently deployed veterans

A recent study found nearly 18% of returning veterans experience sexual functioning difficulties, with depression and post-traumatic stress disorder being major contributing factors. The study's authors emphasize the need for easy access to effective care and open discussion of sexual health concerns among veterans.

SourceWiley·JournalSexual Medicine·DateNov 3, 2015

CU-Boulder study: Ancient Salvadoran village buried by ash freezes daily life in time

The CU-Boulder study found that the ancient villagers of Ceren had significant interactions among families, village elders, craftspeople, and specialty maintenance workers. The village's high degree of preservation allowed researchers to see daily life in detail, with evidence of free market transactions and no control by elite royalty.

SourceUniversity of Colorado at Boulder·JournalLatin American Antiquity·DateNov 3, 2015

Births down and deaths up in Gulf dolphins

A NOAA-led team found that only 20% of pregnant dolphins in Barataria Bay gave birth to healthy calves, compared to an 83% success rate in a similar population. The study also revealed high rates of reproductive failure and death among dolphins exposed to oil from the Deepwater Horizon spill.

Link between small mammals and evolution of hepatitis A virus to humans discovered

Researchers have found a link between the origins of hepatitis A virus (HAV) and small mammals, specifically bats and rodents. The study provides novel insight into the evolution of HAV and how it spread to humans, highlighting the importance of analyzing animal reservoirs for risk assessment of emerging viruses.

SourceUniversity of North Carolina at Chapel Hill·JournalProceedings of the National Academy of Sciences·DateNov 3, 2015

Being moody may help us adapt to change

A new theory suggests that mood can aid adaptation to environmental changes by reflecting recent changes in reward availability. This effect may help explain the causes of mood disorders and predispose individuals to conditions like bipolar disorder.

SourceCell Press·JournalTrends in Cognitive Sciences·DateNov 3, 2015

National survey of Americans' health app use shows technology's promise and weakness

A national survey of 1,604 adult smartphone users found that 58% had downloaded a health-related mobile application, with 65% reporting improved health. However, concerns about cost, disinterest, and privacy barriers hinder wider adoption. More research is needed to maximize the impact of health apps on overall health.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJournal of Medical Internet Research·DateNov 3, 2015

3-D printed 'building blocks' of life

Researchers have created a 3D printing technique that produces highly uniform 'blocks' of embryonic stem cells, which can be used as building blocks to construct tissue constructs, larger structures of tissues, and potentially even micro-organs. The method outperforms existing methods in terms of cell uniformity and homogenous prolifer...

SourceIOP Publishing·JournalBiofabrication·DateNov 3, 2015

Race matters on college campuses

Researchers found that banning affirmative action can lead to a decline in student body diversity and negatively impact students of color. The study examined the impact of Proposal 2 in Michigan, which prohibited considering race in college admissions, and found that administrators felt disempowered to support racial diversity on campus.

SourcePenn State·JournalAmerican Educational Research Journal·DateNov 3, 2015

Muscle loss linked with falls and fractures in elderly

Researchers found that older people with an age-related loss of muscle mass and strength are at a greater risk of falling and bone fractures. The study identified the International Working Group on Sarcopenia (IWGS) definition as the most effective means of identifying individuals at risk of adverse musculoskeletal events.

SourceUniversity of Southampton·JournalCalcified Tissue International·DateNov 3, 2015

Closing the dyslexia achievement gap

Researchers at Yale University found that a large achievement gap between dyslexic and typical readers is already present in first grade. Early screening and reading interventions can help close this gap by implementing programs as early as kindergarten.

SourceYale University·JournalThe Journal of Pediatrics·DateNov 3, 2015

Protein Photonics special section in Journal of Biomedical Optics honors Osamu Shimomura

The Journal of Biomedical Optics special section honors Osamu Shimomura's work on green fluorescent protein, enabling researchers to observe molecular-level activity in live cells. Recent studies detail new applications of protein photonics, including multicolor imaging and monitoring cellular magnesium levels.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Biomedical Optics·DateNov 3, 2015

Some chemicals less damaging to ozone can degrade to long-lived greenhouse gas

Scientists have discovered that chemicals widely used as refrigerants can degrade in the atmosphere to form a potent greenhouse gas called carbon tetrafluoride (CF4), lasting up to 50,000 years. This finding highlights the need for understanding the chemistry of compounds used in industry to mitigate long-lived atmospheric effects.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateNov 3, 2015

New computational approach to predicting adverse drug reactions with higher confidence

Researchers from IMIM and partner institutions developed a new integrated computational method to predict adverse drug reactions more reliably. The method combines structure-based detection of labile fragments with information on the mechanism of action of the drug, resulting in improved ability to foresee possible adverse effects.

SourceIMIM (Hospital del Mar Medical Research Institute)·JournalChemical Research in Toxicology·DateNov 3, 2015