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Science News Archive 2020 - Page 371


Page 371 of 512

Small rises in blood glucose trigger big changes in insulin-producing cells

Researchers found that even small increases in blood glucose levels can cause significant changes in the behavior of insulin-producing beta cells, making them more vulnerable to autoimmunity and inflammation. This discovery may improve understanding of type 1 and type 2 diabetes and shed light on potential treatments.

SourceJoslin Diabetes Center·JournalMolecular Metabolism·DateApr 21, 2020

Humble bug holds key to relieving millions of allergy sufferers in Europe

A study published in Nature Communications reveals that a leaf beetle can significantly reduce pollen from common ragweed, benefiting over 2 million allergy sufferers in Europe. The research also estimates the economic benefits of biological control in Europe, suggesting countries in the Balkan Peninsula will benefit most.

SourceCABI·JournalNature Communications·DateApr 21, 2020

Lizards develop new 'love language'

Researchers studied Aegean wall lizards on predator-free islands and found they rapidly developed new chemical signals distinct from their source population. This change occurred after only four generations and offers a unique opportunity to understand animal communication.

SourceWashington University in St. Louis·JournalJournal of Animal Ecology·DateApr 21, 2020

Researchers identify link between obesity and sleep loss in worms

A new study published in PLOS Biology found that excess weight can cause poor sleep in worms, not the other way around. Researchers genetically modified worms to lose their ability to sleep and observed a severe drop in energy levels, suggesting that sleep is an attempt to conserve energy.

SourceUniversity of Pennsylvania School of Medicine·JournalPLOS Biology·DateApr 21, 2020

Novel class of specific RNAs may explain increased depression susceptibility in females

Researchers at Mount Sinai have identified a novel class of genes, specifically LINC00473, that regulate mood and drive sex-specific susceptibility versus resilience to depression. These findings provide evidence for an important new family of molecular targets that could help scientists develop more effective pharmacotherapies.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNeuron·DateApr 21, 2020

Study shows glaucoma could be successfully treated with gene therapy

A new study shows a common eye condition, glaucoma, can be successfully treated with gene therapy using a single injection, providing additional treatment options and benefits. Glaucoma affects over 64 million people worldwide and is a leading cause of irreversible blindness.

SourceUniversity of Bristol·JournalMolecular Therapy·DateApr 21, 2020

New macrolactone database could aid drug discovery, research

Researchers have created a free-to-use database of 14,000 known macrolactones to aid in drug discovery and research. The MacrolactoneDB contains information on molecular characteristics, chemical diversity, and biological activities of these molecules.

SourceNorth Carolina State University·JournalScientific Reports·DateApr 21, 2020

Coffee changes our sense of taste

A study published in Foods found that coffee makes people more sensitive to sweetness and less sensitive to bitterness. The researchers suggest that the bitter compounds in coffee may be responsible for this effect. This discovery could have implications for our understanding of how we regulate sugar consumption.

SourceAarhus University·JournalFoods·DateApr 21, 2020

What helps couples weather financial storms

Research by Ashley LeBaron found that couples who prioritize relationship maintenance behaviors during financial stress tend to have stronger relationships. These behaviors include respecting each other, being present, and showing love and affection. Receiving support from family and friends also plays a crucial role.

SourceUniversity of Arizona·JournalJournal of Family and Economic Issues·DateApr 21, 2020

High-performance electrolyte solves battery puzzle

Researchers at the University of Maryland have developed a new electrolyte that forms a protective layer on silicon anodes, stabilizing their structure and preventing degradation. This breakthrough enables the use of micro-sized alloy anodes, significantly enhancing energy density and paving the way for high-energy batteries.

SourceUniversity of Maryland·JournalNature Energy·DateApr 21, 2020

How the blob came back

A new study found that weakened wind patterns and a thinner ocean mixed layer fueled the record-breaking 2019 marine heat wave, dubbed Blob 2.0, which damaged marine ecosystems and hurt coastal fisheries.

SourceUniversity of Colorado at Boulder·JournalNature Communications·DateApr 21, 2020

New study shows sharp decrease of intimate partner violence in Nicaragua

A new study found a significant decrease in intimate partner violence in Nicaragua over a 20-year period, with women's advocacy groups credited for the change. The percentage of women experiencing physical violence decreased from 55% to 28%, and emotional violence from 71% to 43%.

SourceGeorge Washington University·JournalBMJ Global Health·DateApr 21, 2020

ASU scientists lead study of galaxy's 'water worlds'

A team of international researchers has provided a mineralogy lab study for water-rich exoplanets, revealing an unexpected new solid phase with silicon, hydrogen, and oxygen. The findings suggest that the distinction between water and rock layers in these planets may be 'fuzzy' at high pressure and temperature.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateApr 21, 2020

Antibodies could provide new treatment for OCD

Scientists at Queen Mary University of London have discovered a link between a specific immune system protein and obsessive compulsive disorder (OCD). Treating mice with an antibody that neutralised the protein reduced anxiety levels, suggesting a potential new treatment for human patients.

SourceQueen Mary University of London·DateApr 21, 2020

Science and sustainability in the 21st century

A retrospective on the global environmental movement highlights the need for scientific collaboration with society to influence public policy. Scientists must engage across fields to drive societal transitions toward environmental sustainability.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Police force and procedural justice training

A training program initiated by the Chicago Police Department reduced mandatory use-of-force reports and civilian interactions with force by 10% and 6.4%, respectively. The study suggests that proper training can lead to changes in policing styles.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Almost half of all postpartum psychosis are isolated cases

Researchers found that forty percent of women who suffer from postpartum psychosis do not become ill again. Women with isolated postpartum psychosis may not require medicinal treatment outside the postpartum period, according to a new study published in Journal of Clinical Psychiatry.

SourceAarhus University·JournalJournal of Clinical Psychiatry·DateApr 20, 2020

Early exposure to cannabis boosts young brains' sensitivity to cocaine, rodent study finds

A Columbia-led study found that early exposure to cannabis makes young brains more sensitive to cocaine, shedding light on the neurobiology of drug use in adolescence. The research revealed key molecular and epigenetic changes in adolescent rats' brains after synthetic psychoactive cannabinoids were followed by cocaine.

SourceThe Zuckerman Institute at Columbia University·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Cochrane Review confirms effectiveness of MMR vaccines

A Cochrane Review confirms the effectiveness of MMR vaccines in preventing infectious diseases such as measles, mumps, and rubella. The review found that one dose of vaccine was 95% effective in preventing measles and 89% effective in preventing rubella, with no association between the vaccines and autism or other conditions.

SourceWiley·JournalCochrane Database of Systematic Reviews·DateApr 20, 2020

Lung injury in COVID-19 is not high altitude pulmonary edema

Researchers warn against treating COVID-19 lung injury like high altitude pulmonary edema (HAPE), citing differences in underlying mechanisms and necessary treatments. Long-term supportive care, including mechanical ventilation, may be needed to overcome underlying inflammation.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalHigh Altitude Medicine & Biology·DateApr 20, 2020

Asteroid collision in neighboring star system

Researchers report a catastrophic collision between two large asteroids in the Fomalhaut system, producing a large dust cloud that gradually dispersed over time. The observations suggest rare collisions of this magnitude are expected to be rare in dynamically quiescent systems.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Green chemistry approaches to the synthesis of coumarin derivatives

The synthesis of coumarin derivatives can be performed using various green chemistry methods, including ultrasound, microwaves, and solvent-free synthesis. These methods reduce the utilization and generation of toxic organic substances, while also enhancing product yields and purity.

SourceBentham Science Publishers·JournalCurrent Organic Chemistry·DateApr 20, 2020

Optimizing a new spraying method for ceramic coatings

Researchers from Universität Bayreuth have developed a novel spraying method, Powder Aerosol Deposition (PAD), which enables the production of dense ceramic films at normal room temperatures. The resulting coatings exhibit excellent mechanical properties, including high hardness and chemical resistance.

SourceUniversität Bayreuth·JournalAdvanced Materials·DateApr 20, 2020

Neolithic genomes from modern-day Switzerland indicate parallel ancient societies

Researchers analyzed 96 ancient genomes to understand the arrival and demographic structure of peoples with Steppe-related ancestry into late Neolithic, early Bronze Age Switzerland. Genetic analysis suggests a complex process involving gradual mixture of parallel, highly genetically structured societies.

SourceMax Planck Institute of Geoanthropology·JournalNature Communications·DateApr 20, 2020

Exoplanet apparently disappears in latest Hubble observations

Astronomers analyze archival Hubble data to reveal possible explanation for Fomalhaut b's disappearance: a massive dust cloud produced in a collision between two large bodies orbiting the nearby star Fomalhaut. The team suggests this event may have occurred only every 200,000 years.

SourceNASA/Goddard Space Flight Center·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Unprecedented single-cell studies in virtual embryo

Scientists have developed a 'virtual embryo' model of the sea squirt Phallusia mammillata, providing unprecedented insights into early embryonic development. The study describes the gene expression and morphology of every single cell in the embryo, revealing coordinated regulation and reproducible patterns.

SourceEuropean Molecular Biology Laboratory·JournalCell·DateApr 20, 2020

What's old is new again

A new strategy to overcome drug resistance in leukemia uses targeted doses of doxorubicin, inhibiting molecular pathways that promote tumor growth and resistance. Low-dose doxorubicin also stimulates the immune system, clearing the way for cancer-targeting immune cells to act.

SourceStowers Institute for Medical Research·JournalNature Cell Biology·DateApr 20, 2020

Physicists develop approach to increase performance of solar energy

Researchers have developed an innovative approach to enhance the performance of solar cells, which could lead to a significant increase in efficiency and revolutionize photovoltaics. The new method, published in Nature Energy, demonstrates potential for ultra-high-efficiency single-junction semiconductor devices.

SourceUniversity of Oklahoma·JournalNature Energy·DateApr 20, 2020

Study finds male-female cardiac repair differences in heart failure survival post-MI

A University of South Florida-led mouse cardiac healing study reveals faster heart repair and improved survival in female mice compared to males after a heart attack. The research suggests that sex-specific therapies may be more effective in managing heart failure, with potential applications for delayed or prevented cardiac inflammation.

SourceUniversity of South Florida (USF Health)·JournalJournal of the American Heart Association·DateApr 20, 2020

Brain activity signature of chronic pain

A study of 40 people with subacute back pain found that those at risk of developing chronic back pain have smaller volumes in the nucleus accumbens, a key brain structure. The loss of low-frequency fluctuations in this region can accurately classify chronic low back pain patients across different laboratories.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Aquaculture at the crossroads of global warming and antimicrobial resistance

Researchers found that global warming promotes the development of pathogenic bacteria in aquaculture, leading to increased disease rates and antibiotic use. The study highlights the urgent need for alternative treatments and encourages research using One Health or EcoHealth approaches to address antimicrobial resistance.

SourceInstitut de recherche pour le développement·JournalNature Communications·DateApr 20, 2020

How reptiles adapted to marine life

Researchers analyzed 18 extinct reptile species and 14 modern relatives, finding similarities in the vestibular system of open-ocean swimmers, including cetaceans. The study suggests that distinct evolutionary routes resulted in similar adaptations for different types of terrestrial animals transitioning to marine environments.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 20, 2020

Stabilizing brain-computer interfaces

Researchers at Carnegie Mellon University have developed a machine learning algorithm that accounts for neural recording instabilities, allowing users to continue controlling brain-computer interfaces despite signal variations. The approach stabilizes neural activity, maintaining good BCI performance in the presence of recording instab...

SourceCollege of Engineering, Carnegie Mellon University·JournalNature Biomedical Engineering·DateApr 20, 2020

Often and little, or rarely and to the full?

Scientists have discovered that more energy can be stored by charging less frequently, but right up to 100%. The study found that dividing the storage system into compartments increases energy storage. This discovery may revolutionize electric car battery technology and lead to significant increases in capacity.

SourceInstitute of Physical Chemistry of the Polish Academy of Sciences·JournalPhysical Review E·DateApr 20, 2020

University of Kentucky's Superfund Research Center receives $8.7 million

The University of Kentucky's Superfund Research Center has received a five-year, $8.7 million grant to conduct research on chlorinated organic compounds and their impact on human health and the environment. The center will investigate strategies to reduce risks posed by environmental contaminants in vulnerable communities.

SourceUniversity of Kentucky·DateApr 20, 2020

Mind over body: The search for stronger brain-computer interfaces

Researchers at the University of Pittsburgh and Carnegie Mellon University have developed a brain-computer interface technology that can readjust itself in real-time to ensure smooth operation. The system uses electrodes smaller than a hair to record neural activity, allowing users to control devices with greater precision and accuracy.

SourceUniversity of Pittsburgh·JournalNature Biomedical Engineering·DateApr 20, 2020

Can high-power microwaves reduce the launch cost of space-bound rockets?

A study published in the Journal of Spacecraft and Rockets has helped solve efficiency issues with using high-powered microwaves to supplement chemical fuel for rocket launches. The researchers calculated the efficiencies of various components, finding that variable-focus transmission shows promise for future research.

SourceUniversity of Tsukuba·JournalJournal of Spacecraft and Rockets·DateApr 20, 2020

Engineering honor For Lashanda Korley

LaShanda Korley, a renowned materials scientist at the University of Delaware, has been elected as a Fellow of the American Institute for Medical and Biological Engineering. Her work focuses on developing bio-inspired materials with applications in healthcare, sensing, and soft robotics.

SourceUniversity of Delaware·DateApr 20, 2020

New 'brick' for nanotechnology: Graphene Nanomesh

Researchers at Japan Advanced Institute of Science and Technology have successfully fabricated suspended graphene nanomesh with controlled nanopores. The graphene nanomesh exhibits increased thermal activation energy, enabling new methods for bandgap engineering and potential applications in gas sensing and phonon engineering.

SourceJapan Advanced Institute of Science and Technology·JournalMicromachines·DateApr 20, 2020