Add BrightSurf on Google Email

Science News Archive April 2015 - Page 31


Page 31 of 36

Study points the way toward producing rubber from lettuce

Prickly lettuce has potential as a new cash crop providing raw material for rubber production, according to Washington State University scientists. They identified genetic markers linked to rubber production in the plant's genetic code, opening the way for breeding desired traits and developing a sustainable source of natural rubber.

SourceWashington State University·JournalJournal of Agricultural and Food Chemistry·DateApr 6, 2015

Stress and obesity: Your family can make you fat

A new study links long-term exposure to family stressors like family disruption, financial stress, and maternal poor health to increased risk of obesity in adolescents. Findings suggest female and male adolescents respond differently to stress, highlighting the need for tailored social services in obesity prevention programs.

SourceUniversity of Houston·JournalPreventive Medicine·DateApr 6, 2015

Characteristic pattern of protein deposits in brains of retired NFL players who suffered concussions

A new imaging tool found a strikingly similar pattern of abnormal protein deposits in the brains of retired NFL players with concussions, which may help identify brain disorders like CTE. The study also shows differences in brain imaging patterns between concussed athletes and healthy individuals.

SourceUniversity of California - Los Angeles Health Sciences·JournalProceedings of the National Academy of Sciences·DateApr 6, 2015

Pulling the strings of our genetic puppetmasters

Duke researchers have developed a new method to precisely control gene activity by chemically manipulating proteins that package DNA. This technology allows for the activation of specific gene promoters and enhancers, which could provide a new avenue for gene therapies and guiding stem cell differentiation.

SourceDuke University·JournalNature Biotechnology·DateApr 6, 2015

Young guns: Study finds high firearm violence rate in high-risk youth after assault injury

A new University of Michigan study found that young people who have been injured in a fight have a nearly 60% chance of being involved in a violent incident involving a firearm within two years. The study also identified associated factors, such as drug use disorder and post-traumatic stress disorder, that increase this risk.

Neighborhood stigma affects online transactions, NYU researchers find

A study by NYU researchers found that neighborhood stigma significantly impacts economic transactions, with buyers perceiving sellers from disadvantaged neighborhoods as less trustworthy and responsive. The study, which analyzed responses to online ads in 12 cities, revealed a 16% lower response rate for disadvantaged neighborhoods com...

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateApr 6, 2015

The brain game

Researchers found that quicker learners use different brain regions and have more interconnected networks, while slower learners rely on more individualized brain activity. The study provides insight into the neural mechanisms behind skill learning and practice.

SourceUniversity of California - Santa Barbara·JournalNature Neuroscience·DateApr 6, 2015

Mysterious desert fairy circles share pattern with skin cells

Scientists at OIST Graduate University have identified a pattern in desert fairy circles that closely resembles the distribution of skin cells. This similarity spans vastly different scales, from microscopic cells to large-scale desert landscapes. The findings suggest that patterns may exist across disparate systems, enabling new appro...

Sleep problems prevalent for military members

A new RAND Corporation study reveals persistent sleep problems among service members, negatively affecting mental health and operational readiness. The study recommends education and awareness programs to shift cultural attitudes and develop policies to promote healthy sleep habits.

Sound separates cancer cells from blood samples

Researchers developed an acoustic-based microfluidic device to separate circulating cancer cells from blood samples with high accuracy. The device uses surface acoustic waves to push CTCs out of the fluid stream, making it a potentially game-changing technology for non-invasive diagnostics and treatment monitoring.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateApr 6, 2015

Device extracts rare tumor cells using sound

Researchers developed a microfluidic chip that uses sound waves to separate circulating tumor cells from white blood cells, achieving a throughput rate up to 20 times faster than prior attempts. The device preserves the integrity of separated CTCs and offers a label-free approach without chemically altering the cells.

SourceCarnegie Mellon University·JournalProceedings of the National Academy of Sciences·DateApr 6, 2015

New research complicates seismic hazard for British Columbia, Alaska region

A recent study on the 2012 Mw 7.8 Haida Gwaii and 2013 Mw 7.5 Craig earthquakes reveals a confirmed subduction zone in the Haida Gwaii area, complicating seismic hazard assessments for British Columbia and Alaska. The research also found that the mainshock altered stress fields in the rupture zone, leading to normal faulting behavior.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateApr 6, 2015

News from Annals of Internal Medicine April 7, 2015

Researchers found that Weight Watchers and Jenny Craig are the most effective commercial weight-loss programs for long-term weight loss. In contrast, physical therapy was as effective as surgery in alleviating symptoms of lumber spinal stenosis. Leading internists also advocate for a more thoughtful approach to cardiopulmonary resuscit...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateApr 6, 2015

Regulating poinsettia's height

Researchers found that controlled water deficit can effectively regulate stem elongation in poinsettias, reducing the need for plant growth retardants. The study also showed that prolonged water deficit application reduced bract area, highlighting the importance of avoiding this practice during periods of bract elongation.