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Science News Archive 2017 - Page 452


Page 452 of 461

New study examines the health benefits of blue corn

A new study published in Journal of Medicinal Food found that blue maize extract improved systolic blood pressure, HDL cholesterol, and triglyceride levels in rats with metabolic syndrome. The natural antioxidants present in blue maize may help protect against cardiovascular disease, diabetes, and cancer.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalJournal of Medicinal Food·DateJan 11, 2017

Release of water shakes Pacific Plate at depth

Scientists discovered a seismic belt in the downgoing slab of the Pacific Plate, triggered by the sudden release of water due to temperature changes. The findings suggest that earthquakes occur when the mantle releases its water, which is correlated with the subduction rate and slab temperature.

SourceWashington University in St. Louis·JournalScience Advances·DateJan 11, 2017

Should biomedical graduate schools ignore the GRE?

A UNC research team found that GRE scores don't forecast productivity or success in graduate programs within the experimental sciences. The study recommends devaluing or eliminating the GRE from applications for biomedical PhD candidates, citing a stronger correlation between graduation rates and first-author publications.

SourceUniversity of North Carolina Health Care·JournalPLOS ONE·DateJan 11, 2017

NIH scientists repair gene defect in stem cells from patients with rare immunodeficiency

Researchers successfully repaired a defective gene in blood-forming stem cells from patients with X-linked chronic granulomatous disease, suggesting a potential treatment approach. The study used CRISPR-Cas9 technology to correct a specific mutation in the CYBB gene, restoring normal functioning of white blood cells.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience Translational Medicine·DateJan 11, 2017

'Gene-silencing' technique is a game-changer for crop protection

Researchers have developed a revolutionary new crop protection technique using gene-silencing technology and nanotechnology to protect plants against pests and diseases. The BioClay spray has been shown to give plants virus protection for at least 20 days following a single application.

SourceUniversity of Surrey·JournalNature Plants·DateJan 11, 2017

Northeast US temperatures are decades ahead of global average

Researchers at the University of Massachusetts Amherst predict that Northeast US temperatures will increase much faster than the global average, reaching a 2-degrees Celsius warming target about 20 years earlier. The study finds regional variations in climate change impacts, including wetter winters and drier summers.

SourceUniversity of Massachusetts Amherst·JournalPLOS ONE·DateJan 11, 2017

Using E. coli to detect hormone disruptors in the environment

Researchers developed a portable sensor using engineered E. coli bacteria to detect environmentally relevant concentrations of endocrine disrupting chemicals (EDCs). The device can determine concentrations of known EDCs individually and overall mixtures in minutes, offering a cost-effective solution for detecting hormone disruptors.

SourceAmerican Chemical Society·JournalACS Central Science·DateJan 11, 2017

The moon is older than scientists thought, UCLA-led research team reports

A UCLA-led research team has reported the moon's age to be at least 4.51 billion years old, with a range of 40 million to 140 million years older than previously believed. The findings were made using mineral analysis of zircons brought back by the Apollo 14 mission in 1971.

SourceUniversity of California - Los Angeles·JournalScience Advances·DateJan 11, 2017

First look inside nanoscale catalysts shows 'defects' are useful

Researchers directly observed how metallic nanoparticles activate catalytic processes by identifying defect sites on the surface of single particles. These findings validate a longstanding hypothesis and provide insights into controlling catalyst reactivity.

SourceThe Hebrew University of Jerusalem·JournalNature·DateJan 11, 2017

Incentive pay schemes can affect employee well-being

A new study found that only performance-related pay had a positive impact on employee attitudes such as job satisfaction and commitment. However, profit-related pay and employee share-ownership had mixed effects, with negative impacts on job satisfaction and no significant effects on commitment and trust in management.

SourceUniversity of East Anglia·JournalHuman Resource Management·DateJan 11, 2017

'Weak measurement' with strong results

A research team at TU Wien developed a new method that combines strong measurements with weak measurements to reconstruct quantum states. This approach allows for higher precision and accuracy in determining the quantum state, reducing the need for post-processing.

SourceVienna University of Technology·JournalPhysical Review Letters·DateJan 11, 2017

Hubble's front row seat when galaxies collide

Astronomers observe IRAS 14348-1447, a gas-rich spiral galaxy merger, showcasing intense gravitational interactions. The galaxy's extreme infrared emission is fueled by massive molecular gas reserves.

SourceNASA/Goddard Space Flight Center·DateJan 10, 2017

Landmark study defines normal ranges for testosterone levels

A large study of over 9,000 men has established harmonized reference ranges for total testosterone, enabling clinicians to diagnose hypogonadism correctly. The normal range for testosterone in non-obese European and American men between 19-39 years is 264-916 ng/dL.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJan 10, 2017

First study to show parents' concerns about neighborhood restrict kids' outdoor play

A new study by LSU Health New Orleans School of Public Health shows that parents' concerns about their neighborhood restrict their children's outdoor play. Parents who do not trust their neighbors or feel they have no control over neighborhood problems are more likely to limit their child's physical activity.

SourceLouisiana State University Health Sciences Center·JournalInternational Journal of Environmental Research and Public Health·DateJan 10, 2017

New technology will cut plug-in hybrid fuel consumption by one third

Researchers at UC Riverside developed an innovative energy management system for plug-in hybrids, cutting fuel consumption by over 30% through real-time data analysis. The system combines connected vehicle technology and evolutionary algorithms to optimize power split between engine and battery, achieving greater efficiency.

SourceUniversity of California - Riverside·JournalIEEE Transactions on Intelligent Transportation Systems·DateJan 10, 2017

Zeroing in on the true nature of fluids within nanocapillaries

A group of researchers at the French National Center for Scientific Research discovered a peculiar state of miscible fluids contained within nanochannels. This phenomenon, known as 'microphase separation,' reveals that binary fluids can form unique homogenous liquid phases only at the microscopic scale.

SourceAmerican Institute of Physics·JournalThe Journal of Chemical Physics·DateJan 10, 2017

More individual therapy for blood cancer patients

Researchers from Goethe University Frankfurt discovered a novel biomarker, SAMHD1, that enables accurate prediction of therapy responders and non-responders in acute myeloid leukaemia (AML) patients. This biomarker can guide cytarabine-based chemotherapies to only those patients likely to respond, sparing others from toxic side effects.

SourceGoethe University Frankfurt·JournalNature Medicine·DateJan 10, 2017

Nothing fishy about better nutrition for mums and babies

A study by University of Adelaide researchers found that adding thiamin to fish sauce improves blood markers of thiamin status, making it a potential means of preventing thiamin deficiency in Cambodia. Thiamin deficiency can lead to serious health issues, including beriberi, which is often fatal in infants if left untreated.

SourceUniversity of Adelaide·JournalThe Journal of Pediatrics·DateJan 10, 2017

No silver bullet to beating obesity, study finds

A new study published in the International Journal of Epidemiology finds that poverty is a major contributor to obesity, particularly for individuals with a high genetic risk. The research used data from 120,000 individuals and suggests that targeting specific behaviors or environments may not be an effective solution to reducing obesity.

SourceUniversity of Exeter·JournalInternational Journal of Epidemiology·DateJan 10, 2017

UMD researchers share optimistic vision for Paris Climate Agreement

Scientists at UMD developed an empirical model of global climate to analyze the Paris Agreement, suggesting countries can limit warming if they achieve pledged greenhouse gas reductions. The book, Paris Climate Agreement: Beacon of Hope, recommends a transition to renewable energy by 2060 to meet the RCP 4.5 scenario.

SourceUniversity of Maryland·DateJan 10, 2017

Pretty in pink: Some algae like it cold

Researchers from the University of Cincinnati studied pink snow algae growing on volcanic terrains in the Pacific Northwest, finding it can lower albedo and increase surface melting. The study suggests atmospheric sources of ammonia and nitrate may be driving the growth and survival of these algae.

SourceUniversity of Cincinnati·JournalGeobiology·DateJan 10, 2017

The importance of making friends fast -- when you're an immigrant

A Concordia University research team found that immigrants' positive orientation toward their new culture is key to forming friendships and social engagement. The study suggests that investing resources in supporting newcomers at the beginning of their integration journey can improve their chances of successful integration.

SourceConcordia University·JournalPersonality and Social Psychology Bulletin·DateJan 10, 2017

Bacterial Pac Man molecule snaps at sugar

Researchers discovered a bacterial protein that uses a Pac Man-like chewing motion to grab and hold onto sugar molecules, allowing pathogens to evade the immune system. This understanding could lead to the development of new therapeutics targeting this protein.

SourceUniversity of Bonn·JournalBiophysical Journal·DateJan 10, 2017

Antioxidant may protect offspring of obese mothers from fatty liver disease

New research published in The FASEB Journal suggests that pyrroloquinoline quinone (PQQ) may prevent the development of nonalcoholic fatty liver disease in offspring. PQQ, a naturally occurring antioxidant found in soil and foods, was shown to protect against liver damage and inflammation in mice fed high-fat diets.

SourceFederation of American Societies for Experimental Biology·JournalThe FASEB Journal·DateJan 10, 2017

Dual-purpose biofuel crops could extend production, increase profits

Recent research suggests that dual-purpose biofuel crops like sugarcane and sweet sorghum can produce both ethanol and biodiesel for nine months of the year, increasing profits. This technology has the potential to decrease capital utilization costs and increase annual biofuel production by 20-30%.

SourceCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign·JournalIndustrial Biotechnology·DateJan 10, 2017

$10 million CDC grant funds center to fight vector-borne diseases

The Cornell University-led Northeast Regional Center for Excellence in Vector Borne Diseases aims to educate a cadre of vector biologists and public health practitioners through new courses and a master's program. The center will conduct applied research to prevent, control, monitor, track and respond to vector-borne disease outbreaks.

SourceCornell University·DateJan 10, 2017

High-sugar diet programs a short lifespan in flies

Researchers found that a high-sugar diet programmed flies' genes for longevity, causing long-term effects even after a healthy diet. The study suggests that dietary history has a lasting impact on health and may have implications for human lifespan.

SourceUniversity College London·JournalCell Reports·DateJan 10, 2017

Airborne thermometer to measure Arctic temperatures

Researchers from Moscow Institute of Physics and Technology create a precise method for measuring ocean temperature using Raman spectroscopy, enabling accurate tracking of thermal energy flows in the Arctic. The technique's accuracy is comparable to current direct measurements, opening up new possibilities for monitoring sea surface te...

SourceMoscow Institute of Physics and Technology·JournalOptics Letters·DateJan 10, 2017

How to reap the benefits of exercise: It's in the genes

Researchers discovered the TFEB gene plays a central role in regulating muscle metabolism and energy use during exercise. Overexpressing TFEB improved mitochondrial health and increased energy production in mice, suggesting potential new treatments for diseases like diabetes and obesity.

SourceBaylor College of Medicine·JournalCell Metabolism·DateJan 10, 2017

Rapid Arctic warming has in the past shifted Southern Ocean winds

New University of Washington research reveals that rapid Arctic warming events cause a shift in Southern Hemisphere winds, which can impact global rainfall patterns and climate feedbacks. The study uses chemical clues from an Antarctic ice core to support the findings.

SourceUniversity of Washington·JournalNature Geoscience·DateJan 10, 2017

Supporting actors take lead role as our brains age

Researchers found that glial cells, which support neurons, undergo significant changes with aging, particularly in brain regions damaged by neurodegenerative diseases. This discovery suggests a new approach to understanding and treating dementia, Alzheimer's, and Parkinson's diseases.

SourceThe Francis Crick Institute·JournalCell Reports·DateJan 10, 2017

Americans more in control of their long-term care

The US has shifted from institutional to community-based long-term care, allowing individuals to choose services at home and in the community. Self-directed care programs improve participant well-being and cost containment, according to The Gerontological Society of America's Public Policy & Aging Report.

SourceThe Gerontological Society of America·JournalPublic Policy & Aging Report·DateJan 10, 2017

National VA effort reduced risky opioid prescriptions for veterans, study finds

A new study finds that the Veterans Health Administration's Opioid Safety Initiative reduced high-dose opioid prescribing by 24% and very-high-dose prescribing by 21%, resulting in 331 fewer patients per month receiving prescriptions above 100 MEQ. The initiative also led to a 21% decrease in patients receiving both opioids and sedatives.

SourceMichigan Medicine - University of Michigan·JournalPain·DateJan 10, 2017

A research framework for tracing human migration events after 'out of Africa' origins

The study provides an expanded framework for researchers to study human origins, drawing upon extensive DNA sampling from modern and archaic hominid populations. It suggests a major eastern-western population split once modern humans left Africa, dating back to at least 45,000 years ago.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalMolecular Biology and Evolution·DateJan 10, 2017

Daily folic acid supplementation remains important for prevention of birth defects

According to a new report from the USPSTF, nearly a quarter of reproductive-age women have sub-optimal folate levels, highlighting the importance of daily folic acid supplements. The FDA has also announced plans to fortify corn masa flour with folic acid, targeting Hispanic women at higher risk.

SourceUniversity of Texas Health Science Center at Houston·JournalJAMA Pediatrics·DateJan 10, 2017

Glia, not neurons, are most affected by brain aging

Researchers found that glial cells experience bigger changes than neurons as people age, with astrocytes and oligodendrocytes shifting their regional gene expression patterns upon aging. The study provides a tool to understand how aging in the brain may be linked to the causes of age-related disorders.

SourceCell Press·JournalCell Reports·DateJan 10, 2017

Mass. General-led team identifies gene mutations behind lack of a nose

A team led by Massachusetts General Hospital has identified gene mutations associated with a rare congenital condition involving the absence of a nose, often accompanied by defects in eye and reproductive systems. The SMCHD1 gene was previously linked to muscular dystrophy, but not craniofacial abnormalities.

SourceMassachusetts General Hospital·JournalNature Genetics·DateJan 10, 2017

New species of ground beetle described from a 147-year-old specimen

A new species of ground beetle, Bryanites graeffii, has been described from a 147-year-old specimen found in the Muséum national d'Histoire naturelle in Paris. The discovery sheds light on the impact of human activity on ecosystems and highlights the extinction of native insect species due to colonization by non-native species.

SourcePensoft Publishers·JournalZoosystematics and Evolution·DateJan 10, 2017

How to control the unknown: Novel method for robotic manipulation

A novel control scheme is proposed to control unknown nonlinear systems without exact knowledge of system dynamics. The method uses an observer-based approach with a neural network to observe the system at multiple time scales and update its information.

SourceChinese Association of Automation·JournalIEEE/CAA Journal of Automatica Sinica·DateJan 10, 2017

Close to half of adults and one quarter of kids in the US regularly consume artificial sweeteners

A recent study published in the Journal of the Academy of Nutrition and Dietetics reveals that 41% of adults and 25% of children in the US regularly consume artificial sweeteners. This represents a significant increase from data reported in 1999-2000, with consumption rates reaching 54% among adults and 200% among children.

SourceElsevier Health Sciences·JournalJournal of the Academy of Nutrition and Dietetics·DateJan 10, 2017

Retroviruses 'almost half a billion years old'

New research reveals that retroviruses, including HIV, have been present on Earth for at least 450 million years, originating together with vertebrate hosts in the early Paleozoic era. This finding sheds light on the evolutionary history of these medically important viruses and their ongoing interactions with host immunity.

SourceUniversity of Oxford·JournalNature Communications·DateJan 10, 2017