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Science News Archive November 2017 - Page 26


Page 26 of 42

Secret alter ego of well-known protein fights leaky blood vessels

Scientists discovered a new cell signaling pathway governed by Notch signaling protein that keeps blood vessels intact, which could lead to better drug development and reduce side effects of cancer and cardiovascular treatments. The new pathway operates through a different mechanism than the protein's known transcription-based pathway.

The pros and cons of large ears

Researchers at Lund University found that large ears increase air resistance in bats, making flight less energy-efficient. However, they also provide better hearing and generate more lift, which is crucial for echolocation. The study suggests that evolution has made a compromise between flying efficiency and optimal echolocation ability.

SourceLund University·JournalJournal of The Royal Society Interface·DateNov 13, 2017

New study backs up earlier findings -- Omega-6 fatty acids do not promote low-grade inflammation

A new study from the University of Eastern Finland supports earlier findings that omega-6 fatty acids do not increase inflammatory responses. The research found that a high serum linoleic acid level is associated with lower CRP levels, suggesting that linoleic acid may actually alleviate inflammation.

SourceUniversity of Eastern Finland·JournalEuropean Journal of Clinical Nutrition·DateNov 13, 2017

Livestock, food supply, and greenhouse gases

A study models the effects of removing farmed animals from the US agricultural system on food production and greenhouse gas emissions. Removing animals resulted in increased food availability, but also led to nutrient deficiencies and reduced GHG emissions by 28%. The removal of animals had unintended consequences on the food supply

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 13, 2017

Five health indicators are enough to predict cardiovascular risk in healthy people

A new study finds that a simple tool, Fuster-BEWAT score, can predict cardiovascular risk in healthy individuals using five health indicators: blood pressure, physical activity, body-mass index, fruit and vegetable intake, and smoking status. The Fuster-BEWAT score is as effective as the American Heart Association-recommended ICHS index.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of the American College of Cardiology·DateNov 13, 2017

Exposure to benzene during pregnancy: a pilot study raises concerns in British Columbia

A pilot study in northeastern British Columbia detected high concentrations of muconic acid, a degradation product of benzene, in the urine of pregnant women. The median concentration was approximately 3.5 times higher than in the general Canadian population, raising concerns about the health impacts of living near fracking sites.

SourceUniversity of Montreal·JournalEnvironment International·DateNov 13, 2017

Bright and shining molecules for OLEDs and new drugs

A new technique for synthesizing thiophene derivatives has been developed, offering a convenient and effective two-step procedure. The compounds exhibit promising photophysical properties, including fluorescence, making them suitable for various applications, including OLEDs and potential biomedicine uses.

SourceUral Federal University·JournalChemistry - An Asian Journal·DateNov 13, 2017

Learning from photosynthesis

Researchers have developed a synthetic system for energy gathering, conversion, and transport inspired by natural photosynthesis. The system uses DNA nanotechnology to spatially control and organize chromophores, mimicking the arrangement of densely packed chromophores in plants and photosynthetic bacteria.

SourceArizona State University·JournalNature Materials·DateNov 13, 2017

Global emissions inching up after years of flat growth

Global carbon dioxide concentrations reached a record 403 parts per million in 2016, and are expected to increase by 2.5 parts per million in 2017. The United States and European Union are projected to see slight declines in emissions this year, while China's emissions are expected to grow by approximately 3.5 percent.

SourceStanford University·JournalEarth System Science Data·DateNov 13, 2017

Monopole current offers way to control magnets

Researchers from RIKEN discovered a way to control the properties of north and south poles in frustrated magnets using monopole currents. The system's conductivity can be controlled by applying magnetic fields, enabling efficient magnetism control with minimal energy loss.

SourceRIKEN·JournalPhysical Review Letters·DateNov 13, 2017

'Mini liver tumors' created in a dish for the first time

Researchers have successfully created mini biological models of human primary liver cancers, known as organoids, in the lab. These tiny laboratory models were used to identify a new drug that could potentially treat certain types of liver cancer, showing promising results for personalized medicine and reducing animal usage.

SourceWellcome Trust·JournalNature Medicine·DateNov 13, 2017

How much will we pay for something? Depends on the value of what we've just encountered

A study by New York University researchers found that when we encounter low-valued items, we're willing to pay more for products later seen; conversely, high-valued items lead to lower prices. This previously undetected factor affects consumer behavior and suggests adaptation is a universal feature of cognitive information processing.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateNov 13, 2017

Your stress and mine

A Tel Aviv University study found that people often project their own experiences with stress onto colleagues, causing miscommunication and missed opportunities. The research showed that a person's individual stress mindset colors their perception of others' health, productivity, and burnout levels.

SourceAmerican Friends of Tel Aviv University·JournalJournal of Experimental Social Psychology·DateNov 13, 2017