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Science News Archive 2021 - Page 96


Page 96 of 510

How long can fiber reinforced polymer sustain concrete structures? Scientists answer

A 13-year-long study finds that fiber-reinforced polymer (FRP) coatings can sustain concrete structures for extended periods. The study tested FRP and glass fiber reinforced polymer (GFRP) systems under various environmental conditions, revealing significant impact on bond behavior.

SourceNational Korea Maritime and Ocean University·JournalComposites Part B Engineering·TypeExperimental study·DateOct 14, 2021

Nanoscale lattices flow from 3D printer

Rice materials scientists develop a method to print arbitrary 3D shapes, creating micro-scale electronic, mechanical and photonic devices. The process involves two-photon polymerization and doping with rare earth salts for photoluminescent properties.

SourceRice University·JournalNature Materials·TypeExperimental study·DateOct 14, 2021

German scientists develop multimodal fiber probe for in vivo tissue diagnostics

A team of scientists from Germany develops a novel all-fiber based endoscopic set-up for multimodal non-linear endoscopy, allowing for the reliable assessment of tissue and successful surgery. The probe enables label-free tissue diagnostics, including tumor margin detection, and has the potential to improve patient care and reduce costs.

Snakes diversified explosively after the dinosaurs were wiped out

A study found that snakes rapidly diversified their diets following the K-Pg mass extinction event, incorporating birds, fish, and small mammals into their diet. This diversification was triggered by ecological opportunities presented by the extinction, with some lineages experiencing further bursts of adaptive evolution.

SourcePLOS·JournalPLOS Biology·TypeSystematic review·DateOct 14, 2021

Study finds singing and imagining improvised music elicits flow-like brain states

Researchers at Georgia State University found that singing and imagining improvised music elicits the same flow-like brain states as when musicians are actually performing. The study used fMRI data to identify how a musician's brain reconfigures connectivity depending on the degree of creativity required during jazz performances.

SourceGeorgia State University·JournalScientific Reports·TypeData/statistical analysis·DateOct 14, 2021

Pesticide linked to chronic kidney disease

A University of Queensland study found that people exposed to higher amounts of the insecticide Malathion have a 25% higher risk of kidney dysfunction. Chronic kidney disease is a permanent condition characterized by loss of renal function and is often associated with age, hypertension, and diabetes.

SourceUniversity of Queensland·JournalInternational Journal of Environmental Research and Public Health·TypeData/statistical analysis·DateOct 14, 2021

Vitamin D supplement may enhance dairy cows’ immune health

Researchers found that vitamin D supplementation with calcidiol increased the expression of genes related to cell adhesion and migration, pathogen recognition, and pathogen killing in dairy cows. This suggests a possible link between vitamin D and enhanced immune function, particularly during early lactation.

SourceElsevier·JournalJournal of Dairy Science·TypeExperimental study·DateOct 14, 2021

Freezing fruit flies for future function

Scientists from the University of Tsukuba have developed a new technique to preserve Drosophila primordial germ cells, which can be used to produce new offspring. The cryopreserved PGCs were found to be effective after up to 400 days of long-term storage.

SourceUniversity of Tsukuba·JournalCommunications Biology·DateOct 13, 2021

Welcoming composite inks into the fold

A new composite ink composed of ceramic particles in polymer acrylonitrile-butadiene-styrene (ABS) has been developed to make foldable electronics easier and cheaper to manufacture. The ink enables the creation of flexible, large-area dielectric substrates suitable for millimeter-wave devices, including 5G antennas.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalAdvanced Materials Technologies·TypeExperimental study·DateOct 13, 2021

OSU study: After two hours, sunscreen that includes zinc oxide loses effectiveness, becomes toxic

A new OSU study reveals that sunscreen containing zinc oxide loses its effectiveness and becomes toxic after just two hours of exposure to ultraviolet radiation. The research used zebrafish to test the toxicity of photodegradation products, finding significant increases in defects in the fish.

SourceOregon State University·JournalPhotochemical & Photobiological Sciences·TypeExperimental study·DateOct 13, 2021

Increases in extreme humid-heat disproportionately affect populated regions

A new study by Washington State University scientists finds that people living in areas with humid-heat extremes are bearing the brunt of the impact. The researchers identify a greater increase in population exposure to humid-heat as compared to dry-heat, emphasizing the importance of understanding humidity changes in a warming world.

SourceWashington State University·JournalGeophysical Research Letters·TypeExperimental study·DateOct 13, 2021

During the COVID-19 pandemic, nearly 70% percent of surveyed healthcare workers in Ghana and Kenya met criteria for stress and burnout, which are associated with low job satisfaction

A study found that nearly 70% of surveyed healthcare workers in Ghana and Kenya experienced stress and burnout during the COVID-19 pandemic. The researchers suggest that perceived preparedness plays a crucial role in mitigating these negative effects on job satisfaction.

SourcePLOS·JournalPLOS Global Public Health·DateOct 13, 2021

Smoke from nuclear war would devastate ozone layer, alter climate

A new study finds that massive columns of smoke from a nuclear war would destroy much of the ozone layer over a 15-year period, with peak ozone loss averaging about 75% worldwide. This would lead to devastating effects on human health and food supplies, as well as terrestrial ecosystems.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalJournal of Geophysical Research Atmospheres·TypeComputational simulation/modeling·DateOct 13, 2021

'Broken heart' syndrome is on the rise in women

A recent study by the Smidt Heart Institute found that middle-aged and older women are being diagnosed with 'broken heart' syndrome more frequently—up to 10 times more often—than younger women or men of any age. The incidence has been rising steadily since before the COVID-19 pandemic, suggesting a possible link between stressors, brai...

SourceCedars-Sinai Medical Center·JournalJournal of the American Heart Association·TypeData/statistical analysis·DateOct 13, 2021

Telehealth addiction treatment rose rapidly during pandemic; but potential benefits still unclear

New research highlights the potential of telehealth to increase patient engagement through improved access and convenience. However, studies found limited evidence that telehealth results in better retention or outcomes compared to in-person treatment. Researchers emphasize the need for more empirical work to confirm its benefits.

SourceAmerican Psychiatric Association·JournalPsychiatric Services·TypeLiterature review·DateOct 13, 2021

World-first clinical trial demonstrates focused ultrasound can deliver antibody therapy to breast cancer metastases in the brain

Researchers at Sunnybrook Health Sciences Centre have successfully delivered antibody therapy to breast cancer metastases in the brain using focused ultrasound. The treatment, which temporarily opens the blood-brain barrier, has shown promising results with tumor size reductions of up to 21% in patients.

SourceFocused Ultrasound Foundation·JournalScience Translational Medicine·TypeRandomized controlled/clinical trial·DateOct 13, 2021

Did Venus ever have oceans?

A team of astrophysicists led by Martin Turbet from UNIGE and NCCR PlanetS found that Venus's climate conditions prevented the formation of oceans. The study suggests that the Earth could have suffered a similar fate if it had been closer to the Sun or had weaker radiation in its youth.

SourceUniversité de Genève·JournalNature·TypeNews article·DateOct 13, 2021

Formula milk trials are not reliable, warn experts

A comprehensive review of formula milk trials found that only 17% were conducted independently of formula companies, and most had a high risk of bias due to selective reporting. The researchers call for substantial changes in the conduct and reporting of formula trials to protect participants from harm.

SourceBMJ Group·TypeSystematic review·DateOct 13, 2021

Penn researchers to study the impact of environmental and economic interventions on reducing health disparities in Black Philadelphia neighborhoods with nearly $10 million grant

The study will assess the impact of environmental and economic interventions on health and well-being in predominantly Black neighborhoods. Researchers will enroll 720 adults, half receiving the proposed interventions, and evaluate their overall health and wellbeing, as well as violent crime rates.

Crafting a “sponge” for adsorbing and desorbing gas molecules

A team of scientists has created a novel material composed of catenane molecules, which can adsorb and desorb gas molecules like carbon dioxide. The soft crystal exhibits unique properties, including porosity and deformability, making it suitable for applications such as capturing CO2 molecules.

SourceRIKEN·JournalNature·TypeExperimental study·DateOct 13, 2021

How long does a neutron live?

Physicists have made the most precise measurement yet of a neutron's lifetime, revealing that it lives 14.629 minutes with an uncertainty of 0.005 minutes. This result brings scientists closer to understanding why two previous methods disagree and could provide evidence for new physics.

SourceCalifornia Institute of Technology·JournalPhysical Review Letters·DateOct 13, 2021

Lack of power grids sealed fate for early electric cars

A recent study from Lund University reveals that inadequate infrastructure hindered the adoption of electric cars in the early 20th century. Electric cars were cheaper to drive and emitted less CO2 than gasoline cars, but access to local electrical infrastructure was a major factor in their popularity.

SourceLund University·JournalNature Energy·DateOct 13, 2021

The calculated costs of setting up labs to monitor antimicrobial resistance in resource-limited settings may be prohibitive without financial support

The cost of establishing laboratories to track antimicrobial resistance in Southeast Asian hospitals is substantial, making it challenging for many countries to implement such programs. Financial support is crucial to overcome these costs and provide effective antimicrobial resistance monitoring.

SourcePLOS·JournalPLOS Global Public Health·DateOct 13, 2021

Cognitive study shows lack of bilingual education adversely affects English language learners' writing skills

A University of Kansas study examined three key cognitive functions in teaching writing to Hispanic English learners, revealing word retrieval skills, verbal language skills, and working memory are crucial for success. The research highlights the negative effects of a lack of bilingual education on these students' writing abilities.

SourceUniversity of Kansas·JournalJournal of Educational Psychology·TypeData/statistical analysis·DateOct 13, 2021