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Science News Archive April 2023 - Page 10


Page 10 of 37

Brian Clark selected to speak, presented discoveries at NIH workshop and in Journal of Gerontology

Researcher Brian Clark presents findings on the role of the nervous system in age-related muscle weakness, exploring potential therapeutic targets such as exercise and physical therapy. His work identifies neural mechanisms linked to low nerve cell excitability, impaired signal transmission, and reduced motor network integrity.

SourceOhio University·JournalJournal of Gerontology·TypeSystematic review·DateApr 24, 2023

Sliding out of my DMs: young social media users help train machine learning program to flag unsafe sexual conversations on Instagram

Researchers trained a machine learning program using data from over 5 million direct messages, annotated by 150 adolescents who experienced uncomfortable or unsafe conversations. The technology can quickly flag risky DMs and is intended to address rising trends of child sexual exploitation.

SourceDrexel University·JournalProceedings of the ACM on Human-Computer Interaction·TypeComputational simulation/modeling·DateApr 24, 2023

Massive iceberg discharges during the last ice age had no impact on nearby Greenland, raising new questions about climate dynamics

A new study from Oregon State University found that massive iceberg discharges during the last ice age triggered rapid warming in Antarctica but had no effect on temperatures in Greenland. This discovery challenges current understanding of global climate dynamics and raises more questions than answers.

SourceOregon State University·JournalNature·TypeData/statistical analysis·DateApr 24, 2023

A twisted cell-cell adhesion molecule complex structure revealed by single-molecule fluorescence microscopy and high-speed atomic force microscopy

Researchers have elucidated the mechanism of CELSR cadherin dimerization, revealing a twisted cell-cell adhesion molecule complex structure. The extracellular domains of CELSR cadherins exhibited strand- and globule-like portions, which bound through strand-like structures in an antiparallel orientation.

SourceNational Institutes of Natural Sciences·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 24, 2023

Understanding the long-term impact of climate change on Indian crops

A new study reveals that Indian farmers have adapted to climate change by changing management practices and using hardier crop varieties. However, the impact of climate change on crop yields varies across crops and regions, with some areas experiencing greater benefits than others.

SourceCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign·JournalAgricultural Economics·TypeData/statistical analysis·DateApr 24, 2023

Big Data research points out Omicron outbreak had lower mortality rates compared to previous strains of Covid-19

A Brazilian study analyzed data from over 40,000 patients admitted to ICUs and found lower mortality rates during the Omicron outbreak compared to previous strains of Covid-19. Vaccination coverage contributed to the lower mortality observed in the Omicron period, but vulnerable patients remain at risk.

SourceD'Or Institute for Research and Education·JournalIntensive Care Medicine·DateApr 24, 2023

Electronic phase diagram established in Fe intercalated Weyl semimetal Td-MoTe2 for the first time

Researchers from Hefei Institutes of Physical Science established the first electronic phase diagram for Fe-intercalated Weyl semimetal Td-MoTe2, exhibiting exotic electronic behaviors and magnetic states. The study enriched the physical properties of Td-MoTe2 by 3D-element intercalation.

A panoramic view on lithium-mediated electrochemical dinitrogen reduction reaction

The review summarizes the recent progress of Li-eN2 RR, covering reaction mechanisms, catalysts developed, and electrolytes involved. It highlights the challenges and possible resolving strategies in the field. The study also discusses the importance of rational design of electrocatalysts and electrolytes for efficient NH3 production.

SourceIndustrial Chemistry & Materials·JournalIndustrial Chemistry and Materials·TypeLiterature review·DateApr 24, 2023

Neutralizing monoclonal antibody use and COVID-19 infection outcomes

A study of 167,000 non-hospitalized patients revealed that neutralizing monoclonal antibody treatment for COVID-19 was associated with significant reductions in emergency department visits, hospitalization rates, and mortality. These findings suggest targeted risk stratification strategies may optimize future nMAb treatment decisions.

SourceJAMA Network·JournalJAMA Network Open·DateApr 24, 2023

New dual mode ratio fluorescence sensing system enables rapid in situ detection of carbaryl residues

A team of researchers developed a rapid in situ detection system for carbaryl residues, enabling sensitive and immediate detection with a low detection limit of 16.3 nM. The system utilizes a combination of silicon quantum dots, gold nanoparticles, and cadmium telluride quantum dots, allowing for portable and practical field testing.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalACS Sustainable Chemistry & Engineering·DateApr 24, 2023

Problems with ‘pruning’ brain connections linked to adolescent mental health disorders

Research suggests that problems with the brain's ability to 'prune' itself of unnecessary connections may underlie a wide range of mental health disorders that begin during adolescence. Adolescents experiencing mental health problems showed similar patterns of brain activity, which were largely apparent in the frontal lobes.

SourceUniversity of Cambridge·JournalNature Medicine·TypeData/statistical analysis·DateApr 24, 2023

Growing number of states provide coverage for outpatient hemodialysis for undocumented immigrants

A growing number of states have implemented policies to cover outpatient hemodialysis for undocumented immigrants with kidney failure. This expansion may be due to increased awareness of poor outcomes with emergency hemodialysis and advocacy efforts. The move towards covering dialysis in all 50 states is called for by experts, who also...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeData/statistical analysis·DateApr 24, 2023

Metabolism: not the limiting factor in prokaryotic endosymbiosis

Research team used genome models to test viability, persistence, and evolvability of prokaryote endosymbioses, finding that more than half were viable but often less fit and adaptable than their ancestors. The study suggests metabolic network compatibility is unlikely the limiting factor in prokaryotic endosymbiosis.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateApr 24, 2023

Debunking false beliefs requires tackling belief systems

A new study by Dartmouth College researchers found that biased prior beliefs played a significant role in how people from both political parties updated their fraud beliefs after the 2020 U.S. presidential election. The study used a probability-based computational model to analyze survey data and found that Democrats and Republicans te...

SourceDartmouth College·JournalNature Human Behaviour·TypeSurvey·DateApr 24, 2023

Future doctors and nurses feel unprepared for disasters

A University of Gothenburg study found that future doctors and nurses in Sweden consider their disaster medicine knowledge inadequate. Students who have been conscripts or have experience in rescue services scored higher on a self-assessment questionnaire, suggesting 40 hours of education is reasonably adequate.

SourceUniversity of Gothenburg·JournalFrontiers in Public Health·TypeSurvey·DateApr 24, 2023

Health surveys, studies exclude trans people and gender-diverse communities, impacting health care

A new study reveals that health surveys and clinical studies often exclude transgender and gender-diverse individuals due to the way they record sex or gender. This exclusion can lead to reduced accuracy and inclusivity in study results, resulting in increased health disparities and limited access to healthcare for these communities.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateApr 24, 2023

Better superconductors with palladium

Researchers have found a material, palladium, that is optimally suited for creating superconductors with high transition temperatures. This discovery has the potential to revolutionize electricity generation and transportation by enabling materials to conduct electricity without loss at normal room temperature and atmospheric pressure.

SourceVienna University of Technology·JournalPhysical Review Letters·TypeExperimental study·DateApr 24, 2023

The ABA-induced NAC transcription factor MdNAC1 interacts with a bZIP-type transcription factor to promote anthocyanin synthesis in red-fleshed apples

MdNAC1 significantly promotes anthocyanin accumulation, enhancing its transcriptional activation through interaction with MdbZIP23. ABA induction further enhances MdNAC1's ability to promote anthocyanin synthesis in red-fleshed apples.

SourceNanjing Agricultural University The Academy of Science·JournalHorticulture Research·TypeExperimental study·DateApr 24, 2023

Portable electrochemical sensor designed for lead ion detection

A portable electrochemical sensor has been developed for lead ion detection using cobalt-doped Prussian blue combined with MXene material. The sensor exhibits a linear detection range of 1-200 nM, ultra-low detection limit of 0.97 nM and high accuracy in detecting lead ions in different water samples.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalJournal of Electroanalytical Chemistry·DateApr 24, 2023

Fear not the deadlines, new research finds

Researchers found high sympathetic activation while working, regardless of deadlines, but factors like smartphone use and reading/writing can exacerbate this. The study revealed that researchers instinctively adjust break frequency to regulate stress, providing fresh insights into their behaviors.

SourceUniversity of Houston·TypeExperimental study·DateApr 24, 2023

Achieving prevention and health, rather than more healthcare

Researchers found deaths from gallstone disease increased in younger populations and those with Medicaid after Medicaid expansion, highlighting the need for proactive prevention over reactive emergency care. A new healthcare model emphasizing primary care and prevention is proposed to address these inequities.

SourceRutgers University·JournalJournal of Surgical Research·TypeData/statistical analysis·DateApr 23, 2023

Integrating genetic and environmental risk assessment to improve stroke precision prevention

A new study has found that combining genetic and environmental risk assessment can improve the accuracy of stroke risk prediction. The research used a stroke PRS for East Asian populations and found that individuals with high PRS values were at higher risk of stroke, even among those with intermediate clinical risk profiles.

SourceScience China Press·JournalScience China Life Sciences·DateApr 23, 2023

Creating universal critical nitrogen dilution curves for japonica rice

A team of researchers from China created universal critical nitrogen dilution curves for 10 Japonica rice cultivars using machine learning methods. The study found that parameters a and b vary with cultivar, year, site, and N fertilizer quantity and ratio. Three universal N C curves were obtained using different approaches, which accur...

SourceNanjing Agricultural University The Academy of Science·JournalPlant Phenomics·TypeExperimental study·DateApr 23, 2023

Long-term impact of the COVID-19 pandemic on health services utilization

The COVID-19 pandemic had a profound effect on healthcare services utilization in mainland China, with a 32% reduction in hospital visits and a negative impact on bed utilization rates two years later. Regional differences were observed, highlighting the need for targeted primary healthcare services and resilient health systems.

SourceKeAi Communications Co., Ltd.·JournalGlobal Transitions·TypeObservational study·DateApr 23, 2023