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Science News Archive 2022 - Page 57


Page 57 of 448

Hundred-year-old riddle in botany reveals key plant adaptation to dry land

Researchers have found that plants maintain drought-resistant vascular arrangements by restricting tissue width, revealing a long-standing riddle in botany. The discovery provides insights into how plants evolved to colonize dry land and has potential applications in securing drought resistance in crop breeding programs.

SourceBotanicky ustav Akademie ved Ceske republiky·JournalScience·TypeComputational simulation/modeling·DateNov 10, 2022

A new way of fabricating high-efficiency diffraction gratings for astronomical spectroscopy

Researchers develop a new way to manufacture high-efficiency diffraction gratings using reactive ion-plasma etching, achieving near-theoretical unpolarized diffraction efficiency of 94.3%. The process enables robust and durable gratings suitable for harsh environments.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Astronomical Telescopes Instruments and Systems·DateNov 10, 2022

Long-term memory in temperature series: the “forgetfulness” of state-of-the-art climate models in equatorial and coastal regions

Researchers found significant biases in climate models' simulation of long-term memory in temperature series, especially in equatorial and coastal regions. This may be due to imperfectly simulated coupled processes between oceans and atmosphere, leading to uncertainty in regional climate change predictions.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAtmospheric and Oceanic Science Letters·DateNov 9, 2022

World-first technology to suppress invasive mice

Researchers developed a world-first proof of concept for t-CRISPR technology to control invasive mice. The technology induces female infertility in the target population, eradicating an island population of 200,000 mice in around 20 years.

SourceUniversity of Adelaide·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateNov 9, 2022

Efficient mRNA delivery by branched lipids

Researchers at Hokkaido University developed a novel branched ionizable lipid that significantly increases the efficiency of mRNA delivery by LNPs. The new lipid, CL4F 8-6, was found to enhance protein expression in mice and achieve stable formulations.

SourceHokkaido University·JournalSmall Science·TypeExperimental study·DateNov 9, 2022

The X chromosome is silenced in some male cancers

Researchers discovered that X chromosome is actively silenced in about 4% of male cancer samples, a phenomenon previously seen only in female cells. This finding could lead to new insights into the development and treatment of various types of cancers.

SourceCell Press·JournalCell Systems·TypeMeta-analysis·DateNov 9, 2022

Mass General Brigham remote healthcare delivery program improves blood pressure and cholesterol levels

The Mass General Brigham remote healthcare delivery program lowered blood pressure and LDL-cholesterol significantly in a study of over 10,000 participants. The program provided convenient care from home using digital solutions, improving health outcomes for traditionally underserved populations.

SourceBrigham and Women's Hospital·JournalJAMA Cardiology·TypeRandomized controlled/clinical trial·DateNov 9, 2022

Monoclonal antibodies preserve stem cells in mouse brains, bring promise for future studies

Researchers used monoclonal antibodies to suppress the immune system in mice, tracking human neural stem cell survival using luciferase. The study reveals that monoclonal antibody-mediated immunosuppression enabled long-term survival of transplanted human neural stem cells in mouse brains for at least six to eight months.

SourceMichigan Medicine - University of Michigan·JournalClinical and Translational Medicine·TypeExperimental study·DateNov 9, 2022

Severe obesity in youth a risk factor for early atrial fibrillation

A University of Gothenburg study found that severe obesity at age 18 is associated with a three- to fourfold increased risk of developing atrial fibrillation in younger middle age. The study analyzed data from over 1.7 million men in Sweden and found that higher BMI was linked to mortality risk, heart failure, and ischemic stroke.

SourceUniversity of Gothenburg·JournalJournal of the American Heart Association·TypeData/statistical analysis·DateNov 9, 2022

Researchers examine rates of skin conditions among urban-living Indigenous children and young people in high-income countries

Urban-living Indigenous children and young people in high-income countries are disproportionately affected by atopic dermatitis and bacterial skin infections, which can lead to serious complications. This systematic review highlights the need for co-designed research with Indigenous communities to address these health inequities.

SourceWiley·JournalPediatric Dermatology·DateNov 9, 2022

Severely stressful events worsen symptoms of long COVID

A recent study by NYU Langone Health found that adult patients with severe stressors, such as death of a loved one or financial insecurity, are more likely to experience depression, brain fog, fatigue, and other long-term COVID-19 symptoms. These stressors were also strong predictors of worse functional status, sleep quality, and reduc...

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJournal of the Neurological Sciences·TypeExperimental study·DateNov 9, 2022

CHOP researchers find COVID-19 vaccination leads to higher antibody levels than natural infection in both pregnant people and their babies

A study by Children's Hospital of Philadelphia researchers found that COVID-19 vaccination results in higher antibody concentrations compared to natural infection, providing robust protection for mothers during pregnancy. The study also suggests optimal vaccine timing can maximize the transfer of antibodies to babies.

SourceChildren's Hospital of Philadelphia·JournalJAMA Network Open·DateNov 9, 2022

Aging | Lamin A to Z in normal aging

A new study suggests that prelamin A, a precursor of lamin A, accumulates with age and may drive normal aging. Researchers propose this protein as a target for intervention strategies to extend healthspan and lifespan.

SourceImpact Journals LLC·JournalAging-US·TypeCommentary/editorial·DateNov 9, 2022

Scientists cite need for more research on leadership development in adolescence

The study proposes a multidisciplinary developmental perspective to understand leadership in adolescence, highlighting the importance of studying youth leadership and its impact on society. Researchers aim to develop leadership interventions to maximize potential and facilitate better diversification of the leadership pipeline.

SourceNorthwestern University·JournalPerspectives on Psychological Science·TypeLiterature review·DateNov 9, 2022

U.S. political partisanship affects first impressions of faces

An experimental study found that U.S. political partisanship strongly influences first impressions of strangers' faces, affecting their perceived likability and competence. Disclosure of partisan affiliation had a greater impact on impressions than non-disclosure.

SourcePLOS·JournalPLOS ONE·TypeExperimental study·DateNov 9, 2022

Creating efficient building energy management systems from room-level big data

A new study proposes a scalable, bottom-up approach to developing energy-saving initiatives at the individual level by analyzing real-time energy usage data. The research team developed an energy calculator that can be scaled up to the building- and community-level, enabling more accurate occupant-level measurements.

SourceIncheon National University·JournalRenewable and Sustainable Energy Reviews·TypeData/statistical analysis·DateNov 9, 2022

Screening for stroke risk can save lives and money

Research conducted at Linköping University found that screening for atrial fibrillation in older people could increase the chance of preventing stroke while saving money for healthcare systems. The study, based on data from the STROKESTOP clinical trial, suggests that screening can be a cost-effective intervention.

SourceLinköping University·JournalEuropean Heart Journal·DateNov 9, 2022

In study of almost 20,000 sub-Saharan adolescents, loneliness, hunger, anxiety and substance use were associated with suicidal ideation, while having peer and parental support were associated with a decreased likelihood

A study of nearly 20,000 sub-Saharan adolescents found that loneliness, hunger, anxiety, and substance use were associated with suicidal ideation. In contrast, those with peer and parental support had a decreased likelihood of suicidal thoughts.

SourcePLOS·JournalPLOS ONE·DateNov 9, 2022

Silicon nanochip could treat traumatic muscle loss

Researchers at Indiana University School of Medicine developed a minimally invasive nanochip device that can reprogram tissue function by delivering specific genes. The technology has shown promise as a treatment for traumatic muscle loss, with improved muscle function observed in rats following volumetric muscle loss.

SourceIndiana University·Journalnpj Regenerative Medicine·TypeExperimental study·DateNov 9, 2022

Experimental data validates new theory for molecular diffusion in polymer matrices

Researchers have validated a new theory for molecular diffusion in polymer matrices, explaining how molecules move through complex media. The study found that temperature and molecule size significantly impact transport rates, enabling the design of more selective polymer membranes.

SourceUniversity of Illinois Grainger College of Engineering·JournalProceedings of the National Academy of Sciences·DateNov 9, 2022

Hypertension is associated with 22% higher odds of severe COVID-19, in UK Biobank study of over 16,000 infected people - though successfully reducing blood pressure through medication is linked with a corresponding reduction in risk

A UK Biobank study found that people with hypertension have a 22% higher chance of developing severe COVID-19. Successfully managing blood pressure through medication can significantly lower this risk. The study analyzed data from over 16,000 infected individuals.

SourcePLOS·JournalPLOS ONE·DateNov 9, 2022

Latest neural signals recorded with ABILITY brain-computer interface and new details of the system presented at Society for Neuroscience meeting

The Wyss Center's ABILITY system, a fully implantable brain-computer interface, records neural activity in sheep with high accuracy, decoding fine movement intention from small brain areas. The device is designed to improve quality of life and independence for people with severe paralysis.

Material separates water from … water

A Kyoto University research group has developed a material that effectively separates heavy water from normal water at room temperature. The discovery uses an adsorption-separation method based on copper-based porous coordination polymers, which utilize the flipping action of linkers to separate molecules.

SourceKyoto University·JournalNature·DateNov 9, 2022