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Science News Archive 2021 - Page 350


Page 350 of 510

Biomarker for COVID-19 risk

Researchers identified serum amyloid A (SAA) as a potential biomarker for COVID-19 risk, with higher levels associated with increased inflammation, clot abnormalities, and organ damage. This biomarker could help facilitate early identification of patients requiring aggressive management and monitoring.

SourceFlinders University·JournalInternational Journal of Infectious Diseases·DateApr 18, 2021

World's fastest photo-exfoliation

Researchers at Osaka City University have developed a method to exfoliate materials using UV light, achieving the world's fastest rate of 260 microseconds. This breakthrough has the potential to revolutionize photoactuator production and enable precise manipulation in areas inaccessible to traditional power sources.

SourceOsaka City University·JournalCrystal Growth & Design·DateApr 18, 2021

Corals go hungry long before they bleach

Researchers found that prolonged warm water causes coral heat stress, disrupting nutrient cycling and leading to starved corals. Monitoring nutritional status can help anticipate bleaching problems.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalProceedings of the National Academy of Sciences·DateApr 18, 2021

Run, process, run!

Researchers create nanostructured bimetallic catalysts with enhanced activity and stability, offering a cost-effective alternative to noble metal-based catalysts. The new material is stabilized on a conductive surface using a polymeric material, enabling predictable catalysis performance.

SourceInstitute of Physical Chemistry of the Polish Academy of Sciences·JournalNanoscale Advances·DateApr 18, 2021

Scientists find Galapagos volcano could help forecast future eruptions

Researchers have gained new insights into volcanic behavior and can now track unrest before eruptions, enabling early warnings for local authorities and the public. The study provides a detailed description of Sierra Negra's 2018 eruption, capturing its inflation, fracture, and caldera resurgence.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalNature Communications·DateApr 17, 2021

Heart patients advised to move more to avoid heart attacks and strokes

A large study found that increasing physical activity levels is associated with a reduced likelihood of heart events and mortality in people with high blood pressure, high cholesterol, and diabetes. Participants who showed moderate to large improvements in physical activity were 30% less likely to develop cardiovascular disease or die ...

SourceEuropean Society of Cardiology·DateApr 17, 2021

Alpine plants are losing their white "protective coat"

Alpine plants are losing their white protective coat as snow cover melts earlier, extending the growing season and increasing frost risk. By the end of the century, continuous snow cover for 30 days below 1,600 meters is expected to be rare.

SourceUniversity of Basel·JournalClimatic Change·DateApr 16, 2021

Fast radio bursts shown to include lower frequency radio waves than previously detected

A team of researchers from McGill University has made a groundbreaking discovery about fast radio bursts (FRBs), revealing that they include lower frequency radio waves than previously detected. The study used the combined capacities of two radio telescopes, CHIME and LOFAR, to detect FRBs at frequencies as low as 110 MHz, shedding new...

SourceMcGill University·JournalThe Astrophysical Journal Letters·DateApr 16, 2021

Study sheds light on stellar origin of 60Fe

Researchers have made significant progress in understanding the stellar beta-decay rate of 59Fe, which is essential for predicting the yield of 60Fe in massive stars. By measuring this rate, they eliminated a major nuclear uncertainty and found that the yield of 60Fe is 40% less than previously predicted.

SourceChinese Academy of Sciences Headquarters·JournalPhysical Review Letters·DateApr 16, 2021

Hidden magma pools pose eruption risks that we can't yet detect

Researchers have discovered surprisingly shallow magma pools too small to be detected by common volcano monitoring equipment, posing new risks for eruptions. These hidden magma bodies challenge conventional views of magma detection and may lead to more explosive eruptions than expected.

SourceGeological Society of America·JournalGeology·DateApr 16, 2021

ACS Spring 2021 press conference schedule

New methods to detect doping compounds in urine samples using ion mobility-mass spectrometry will help regulatory agencies track existing dopants and future 'designer' compounds. Baltic amber's therapeutic effects have been pinpointed, potentially leading to new medicines for antibiotic-resistant infections. Scientists also report a wa...

SourceAmerican Chemical Society·DateApr 16, 2021

New understanding of the deleterious immune response in rheumatoid arthritis

Researchers at Monash University have made a significant breakthrough in understanding the deleterious immune response in rheumatoid arthritis. By examining the molecular and cellular levels of T cell recognition, the team identified an immune signature that may provide a potential avenue for diagnostic development or therapeutic inter...

SourceMonash University·JournalScience Immunology·DateApr 16, 2021

Researchers develop microscopic theory of polymer gel

Researchers have proposed a new microscopic theory of polymer gel collapse, shedding light on the dramatic reduction in volume of zwitterionic hydrogels when cooled. The theory explains the role of electrostatic interactions between polymer units in leading to gel collapse, and identifies key parameters that influence this transition.

SourceNational Research University Higher School of Economics·JournalChemical Communications·DateApr 16, 2021

New nanoscale device for spin technology

Researchers at Aalto University developed a new device for spintronics, allowing control and filtering of spin waves in devices as small as hundreds of nanometres. The device uses exotic magnetic materials to trap and cancel out unwanted frequencies, enabling faster processing and wireless transmission.

SourceAalto University·JournalNature Communications·DateApr 16, 2021

Wearable sensors that detect gas leaks

Researchers at POSTECH developed an ultra-compact wearable gas sensor that detects toxic gases and displays a holographic alarm. The sensor uses metasurface technology to provide immediate visual notification without relying on external mechanical or electronic devices.

SourcePohang University of Science & Technology (POSTECH)·JournalScience Advances·DateApr 16, 2021

An antibody-drug combo to combat cancer

Researchers at Tokyo Medical and Dental University developed an antibody-drug conjugate that selectively targets human monocyte progenitors to combat chronic myelomonocytic leukemia (CMML). This strategy effectively blocks malignant cell proliferation with minimal collateral damage to other cell lineages.

SourceTokyo Medical and Dental University·JournalFrontiers in Immunology·DateApr 16, 2021

Coronavirus does not infect the brain but still inflicts damage

A new study found no evidence of SARS-CoV-2 virus in COVID-19 patients' brains, despite significant pathological changes and neurological effects. Inflammation triggered by the virus may cause damage to the brain's blood vessels and lead to 'brain fog' in mild cases.

SourceColumbia University Irving Medical Center·JournalBrain·DateApr 16, 2021

COVID-19: Scientists identify human genes that fight infection

Researchers at Sanford Burnham Prebys have identified a set of human genes that help control SARS-CoV-2 infection, including interferon-stimulated genes (ISGs) that inhibit viral replication. The study provides new insights into the biology of the virus and suggests possible therapeutic options.

SourceSanford Burnham Prebys·JournalMolecular Cell·DateApr 16, 2021

A new guide for communicating plant science

A new guide for communicating plant science aims to bridge the gap between scientists and non-scientists, promoting diversity and inclusion. The document, developed by 30 scientists over two years, provides strategies to effectively communicate plant research to various audiences, including educators and policymakers.

SourceIowa State University·JournalPlant Direct·DateApr 16, 2021

How tangled proteins kill brain cells, promote Alzheimer's, CTE

A University of Colorado Boulder study reveals that tau aggregates interfere with RNA splicing, leading to neurodegeneration in Alzheimer's disease and other tauopathies. The findings provide new insights into the mechanism of action of tau tangles, shedding light on potential therapeutic targets.

SourceUniversity of Colorado at Boulder·JournalNeuron·DateApr 16, 2021

On the pulse of pulsars and polar light

A new approach using reimagined telescopes in both hemispheres could help study dark matter and gravitational waves. The BICEP/Keck array is exploring the possibility of increasing scan length to capture larger areas, yielding promising early results.

SourceAmerican Physical Society·DateApr 16, 2021

Scientists report remarkable enhancement of α-particle clustering in uranium isotopes

Researchers at Chinese Academy of Sciences discover abnormal enhancement of α-particle clustering in uranium isotopes, revealing strong proton-neutron interaction influence on α-decay properties. The study reveals systematics trends and anomalies in α-decay reduced widths for polonium-plutonium nuclei near shell closure.

SourceChinese Academy of Sciences Headquarters·JournalPhysical Review Letters·DateApr 16, 2021

Experiments cast doubts on the existence of quantum spin liquids

Researchers used broadband electron spin resonance spectroscopy to study the properties of spins in a triangular lattice compound. They found that magnetic moments do not arrange themselves in an up-down pattern, contradicting the existence of quantum spin liquids.

SourceUniversitaet Stuttgart·JournalScience·DateApr 16, 2021

Combining news media and AI to rapidly identify flooded buildings

A research group from Tohoku University has developed an AI model that can accurately identify flooded buildings using news media photos within 24 hours of a disaster. The model achieved an 80% estimation accuracy, showcasing the potential for rapid damage mapping and accelerated disaster response.

SourceTohoku University·JournalRemote Sensing·DateApr 16, 2021

Research shows to disrupt online extremism freewill is key

A recent study published in Social Influence found that when people are explicitly told they are free to accept or reject propagandistic claims, their likelihood of choosing a moderate view increases. This approach, based on self-determination theory and psychological reactance theory, aims to disrupt the radicalization process among v...

SourceUniversity of Texas at San Antonio·JournalSocial Influence·DateApr 16, 2021

New CRISPR technology offers unrivaled control of epigenetic inheritance

Scientists have developed a novel CRISPR-based tool called CRISPRoff, which allows for the silencing of almost any gene in human cells without making DNA edits. This technology has significant therapeutic potential, particularly for rare genetic disorders that are caused by a single damaged copy of a gene.

SourceUniversity of California - San Francisco·JournalCell·DateApr 16, 2021

Long-term consequences of CO2 emissions

A new study reveals that ocean oxygen depletion will continue for centuries if all CO2 emissions were stopped immediately, more than quadrupling the current loss. The long-term decrease in oxygen primarily affects deeper layers, leading to major shifts in marine ecosystems and potentially changing habitats.

SourceHelmholtz Centre for Ocean Research Kiel (GEOMAR)·JournalNature Communications·DateApr 16, 2021

The fate of the planet

Experts warn of potential global catastrophes such as engineered pandemics and nuclear annihilation, while also identifying areas for improvement. Scientists like Martin Rees argue that promoting wise technology deployment can minimize risks and ensure a sustainable future.

SourceAmerican Physical Society·DateApr 16, 2021

Older adults most likely to make the effort to help others

New research from the University of Birmingham found that older adults are more likely to work harder for others, even without financial reward. This 'prosocial behaviour' is crucial for social cohesion and contradicts the stereotype that older adults become less altruistic as they age.

SourceUniversity of Birmingham·JournalPsychological Science·DateApr 16, 2021

NSF award to help understand ocean ecology where Chesapeake Bay and Atlantic meet

Researchers will conduct scientific research cruises, sampling fixed stations to understand how the Chesapeake Bay plume changes over time and its impact on fisheries and nutrient cycling. The project aims to develop a hydrodynamic model of the plume and gather empirical data to inform ecosystem-based management applications.

SourceUniversity of Maryland Center for Environmental Science·DateApr 16, 2021

Global street drug supply and its effects on high-risk groups for COVID-19

The global street drug supply has changed dramatically, with heroin and cocaine now cut with up to 17 pharmaceutically active and potentially toxic adulterants. This trend poses significant risks to public health and safety, particularly for high-risk groups during the COVID-19 pandemic.

SourceBentham Science Publishers·JournalCurrent Psychopharmacology·DateApr 16, 2021

Heart health of shift workers linked to body clock

Research found that shift workers with a deviated body clock had higher cardiovascular risk, even after adjusting for sociodemographic and lifestyle factors. The study's findings suggest that staff with atypical work schedules may need closer monitoring for heart health.

SourceEuropean Society of Cardiology·DateApr 16, 2021

Tarantula's ubiquity traced back to the cretaceous

Researchers use genetic analysis to determine tarantulas' ancient ancestry, tracing them to the Americas around 120 million years ago during the Cretaceous period. They found that these spiders were not limited to sedentary burrows, but also exploited ecological niches and displayed surprising dispersal capabilities.

SourceCarnegie Mellon University·JournalPeerJ·DateApr 16, 2021

Vitamin D deficiency may impair muscle function

A mouse study found that vitamin D deficiency impairs skeletal muscle mitochondrial function, leading to reduced energy production and potentially poor muscle strength. The study suggests that preventing vitamin D deficiency in older adults could help maintain better muscle function and reduce age-related muscle deterioration.

SourceSociety for Endocrinology·JournalJournal of Endocrinology·DateApr 16, 2021

Surprise twist suggests stars grow competitively

A survey of star formation in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, suggesting that gas accretion rate determines final star mass. The results contradict the core-collapse model, supporting the competitive accretion model instead.

SourceNational Institutes of Natural Sciences·DateApr 16, 2021

Triangular-shaped spikes key to coronavirus transmission, finds new study

A recent study published in Physics of Fluids reveals that the triangular shape of coronavirus spikes plays a crucial role in its ability to spread. The research, conducted by scientists at OIST and Queen's University, found that the spikes' lower rotational diffusivity enables the virus to better attach itself to objects and people.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalPhysics of Fluids·DateApr 16, 2021

The Trojan-Horse mechanism: How networks reduce gender segregation

Researchers at Linköping University found that network-based recruitment can reduce segregation levels by encouraging individuals to form ties with those of different genders. This 'Trojan-horse mechanism' suggests that networks can counteract the segregating impact of mobility events, leading to desegregating moves.

SourceLinköping University·DateApr 16, 2021

Egg and sperm cell size evolved from competition

Researchers found that competition for resources led to the development of vastly different sizes between egg cells and sperm cells. The study used mathematical modeling to demonstrate how natural selection favored larger gametes due to increased nutritional value, while smaller gametes required fewer resources.

SourceNorthwestern University·JournalJournal of Theoretical Biology·DateApr 16, 2021

Underweight and overweight women at higher risk of successive miscarriages

A new study published in Scientific Reports reveals that underweight and overweight women are significantly more likely to experience recurrent miscarriages due to their abnormal Body Mass Index. The research highlights the importance of weight management in reducing the risk of repeated pregnancy losses.

SourceUniversity of Southampton·JournalScientific Reports·DateApr 16, 2021