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Science News Archive 2019 - Page 232


Page 232 of 486

Smells like love...to sea lampreys

Researchers at Michigan State University have discovered that spermine, an odorous compound in male semen, attracts mature female sea lampreys and helps them select suitable mates. This finding could potentially be used to control invasive sea lamprey populations in the Great Lakes.

SourceMichigan State University·JournalPLOS ONE·DateJul 9, 2019

Study identifies the best healthy eating nudges

A meta-analysis of real-life experiments found that behavioural nudges can reduce daily energy intake by up to 209 kcal, equivalent to 21 cubes of sugar. Cognitive and affective nudges were less effective, with average reductions of 64 kcal and 129 kcal respectively.

SourceINSEAD·JournalMarketing Science·DateJul 9, 2019

Scientists identify new virus-killing protein

Researchers discovered a new protein called KHNYN that works together with the known virus-killing protein ZAP to target viral genomes and destroy viruses. This natural antiviral system has potential applications in developing new vaccines and treatments for cancer.

SourceeLife·DateJul 9, 2019

Cleaning up the cosmic neighborhood

Vestigo Aerospace LLC is developing drag sail technology to remove small satellites and launch vehicle stages from orbit, addressing the growing risk of on-orbit collisions. The company aims to reduce energy and debris impact zones through targeted reentry.

Fear of predators increases risk of illness

Research at Lund University reveals that prey animals with a weaker immune system have an increased risk of illness due to chronic stress from predator presence. The study found that bold individuals with a greater need for defense exhibit a better immune response.

SourceLund University·JournalJournal of Animal Ecology·DateJul 9, 2019

Scientists reveal close connections between the Northern Hemisphere mid-high latitudes and East Asia

Research findings show that mid-high latitude climate variability significantly impacts the East Asian monsoon, with a synergistic effect on predictability sources. Chinese scientists propose new concepts to explain combined effects of regional climate variabilities on East Asian climate.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJul 9, 2019

Deep learning-powered 'DeepEC' helps accurately understand enzyme functions

A deep learning-powered computational framework called DeepEC has been developed to predict enzyme commission numbers with high accuracy and efficiency. It uses convolutional neural networks and homology analysis to identify EC numbers, which is essential for understanding enzyme functions.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalProceedings of the National Academy of Sciences·DateJul 9, 2019

Tungsten as interstellar radiation shielding?

Researchers discovered a nanoscale tungsten-microbial interface that enables the growth of heat-loving microorganisms. This finding has implications for the survivability of microorganisms in outer space and the potential use of tungsten as interstellar radiation shielding.

SourceUniversity of Vienna·JournalFrontiers in Microbiology·DateJul 9, 2019

Mathematical modeling for translational research of new CRSD medication

A mathematical modeling study reveals that photosensitivity and PER2 level affect the efficacy of a clock-modulating drug, enabling precision medicine for circadian disruption. The researchers identified adaptive chronotherapeutics to identify precise dosing regimens that can restore normal circadian phase under different conditions.

On-demand control of terahertz and infrared waves

Graphene's ability to control infrared and terahertz waves using magnetic fields has been confirmed experimentally, opening up new possibilities for opto-electronics, telecommunications, and medical diagnostics. The research also shows that graphene can be used to observe molecular chirality and search for life on exoplanets.

SourceUniversité de Genève·JournalNature Nanotechnology·DateJul 9, 2019

New antibacterial fillings from Tel Aviv University may combat recurring tooth decay

Researchers at Tel Aviv University have developed novel dental restoratives that display potent antibacterial capabilities, potentially preventing recurrent cavities and tooth decay. The resin-based composites incorporate antibacterial nano-assemblies to hinder bacterial growth and viability on dental restorations.

SourceAmerican Friends of Tel Aviv University·JournalACS Applied Materials & Interfaces·DateJul 9, 2019