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Science News Archive October 2021 - Page 23


Page 23 of 40

USC researchers find that interrupting a high-fat, high-calorie diet with regular cycles of a fasting-mimicking diet helps mice live a longer, healthier life

Researchers found that regular cycles of a fasting-mimicking diet in mice helped counteract the negative effects of a high-fat, high-calorie diet. The study suggests that this diet may have potential as 'medicine' to prevent obesity and heart disease.

SourceUniversity of Southern California·JournalNature Metabolism·TypeExperimental study·DateOct 14, 2021

HKUST research shows growing dominance of diatom algae in the Pearl River estuary and paves the way for future study on diatom blooms

A HKUST research team found a nearly doubled Diatom/Dino ratio in the Pearl River Estuary over two decades, challenging the notion that higher ratios indicate better water quality. The study also reveals temperature and nutrient concentration play significant roles in diatom blooms.

SourceHong Kong University of Science and Technology·JournalGlobal Change Biology·TypeData/statistical analysis·DateOct 14, 2021

Big differences found in male and female jojoba plant sex genes

Researchers identified a wide divergence of sex chromosomes in jojoba plants, which could lead to the development of a DNA test to identify male and female plants. The study reveals that male and female jojoba plants have diverged genetically due to environmental stress, with differing reproductive resource allocation requirements.

SourceUniversity of Queensland·JournalThe Plant Journal·TypeData/statistical analysis·DateOct 14, 2021

Benchmark genome study demonstrates accuracy of artificial intelligence in rapidly diagnosing rare diseases in critically ill patients

A retrospective study demonstrates that AI-powered Fabric GEM algorithm can detect over 90% of disease-causing variants in infants with rare diseases using whole-genome and whole-exome data. The algorithm also ranks specific genes associated with these variants, assisting clinicians in diagnosis.

SourceRady Children's Institute for Genomic Medicine·JournalGenome Medicine·TypeMeta-analysis·DateOct 14, 2021

Researchers identify protein that prevents serious brain damage, reduces risk of fatal HSV-1 infection

University of Illinois Chicago researchers discovered a function of mammalian target of rapamycin complex 2 in an antiviral defense mechanism, limiting HSV-1 virus infection through rapid activation of antiviral immunity. The protein complex protects the host by preventing encephalitis and possible death due to HSV-1 infection.

SourceUniversity of Illinois Chicago·JournalNature Communications·TypeComputational simulation/modeling·DateOct 14, 2021

Watching nature videos on social media supported mental wellbeing during Covid-19 lockdown, finds study

Researchers analysed publicly available comments in response to nature video content on Facebook during the UK's first national Covid-19 lockdown. The study found that engaging with this virtual nature content helped people cope with stress and mental fatigue, and increased feelings of connectedness to nature and others.

SourceUniversity of Surrey·JournalFrontiers in Psychology·TypeObservational study·DateOct 14, 2021

Ultrafast control of quantum materials

Scientists harness light to alter solid properties and create new applications for high-speed information processing, lossless energy transfer, and quantum technologies. The team reviews the latest developments in ultrafast materials science and explores unifying themes for controlling materials with light.

SourcePaul Scherrer Institute·JournalReviews of Modern Physics·TypeSystematic review·DateOct 14, 2021

Unique underpinnings revealed for stomach’s acid pump

Scientists have improved understanding of a key protein that makes the stomach acidic, shedding light on potential applications in drug development. The study found an unusual feature in the protein, which needs to bind to only one potassium ion to trigger its pump mechanism.

SourceNagoya University·JournalNature Communications·TypeExperimental study·DateOct 14, 2021

The planet does not fall far from the star

Scientists confirm a link between planetary and stellar compositions, with some planets exhibiting higher iron content than their host stars. This study provides insights into planetary formation and evolution, shedding light on potential habitability and constraining possible compositions.

SourceUniversity of Bern·JournalScience·DateOct 14, 2021

Predict phosphine reactivity with one simple metric

Researchers developed a predictive tool using %V bur (min) to categorize phosphine structures as active or inactive in many experimental datasets. This advancement will facilitate organometallic chemistry and catalysis, enabling easier computation and prediction of phosphine reactivity.

SourceUniversity of Utah·JournalScience·TypeComputational simulation/modeling·DateOct 14, 2021

COVID's crushing impact on public health

A new study reveals the devastating impact of COVID-19 on public health, with the workforce experiencing extreme exhaustion and burnout. The pandemic response has swamped healthcare workers, leaving critical services such as chronic disease prevention, maternal-child health, and environmental health on hold.

SourceUniversity of Delaware·JournalPLOS ONE·DateOct 14, 2021

Photobiomodulation of the brain: Shining light on treating Alzheimer's and other neuropathological diseases

A special collection of articles reviews the application of photobiomodulation therapy for dementia, Alzheimer's disease, and other brain conditions. The therapy has been shown to promote microcirculation, cellular proliferation, and regeneration, reducing pain, inflammation, and oxidative stress.

SourceIOS Press·JournalJournal of Alzheimer’s Disease·TypeMeta-analysis·DateOct 14, 2021

New paper lays out agenda for the next generation of biodiversity research

A new paper from University of British Columbia expert Dr. Mary O'Connor emphasizes the need to consider feedbacks in biodiversity research and policy making to mitigate negative consequences for humans. The authors propose building national and global biodiversity observatories to monitor ecosystems and human activities, enabling data...

SourceUniversity of British Columbia·JournalProceedings of the Royal Society B Biological Sciences·TypeCommentary/editorial·DateOct 14, 2021

Research confirms findings of high viral loads of SARS-Co-V-2 in children

A study published in the Journal of Infectious Diseases found that children can carry high levels of live, replicating SARS-CoV-2 virus in their respiratory secretions, with no correlation between age and viral load. The researchers also noted that viral loads are highest early in the illness in both symptomatic and asymptomatic children.

SourceMassachusetts General Hospital·JournalThe Journal of Infectious Diseases·TypeObservational study·DateOct 14, 2021

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