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Science News Archive February 2022 - Page 20


Page 20 of 40

Strong magnets put new twist on phonons

Rice University scientists discovered that strong magnetic fields can manipulate the material's optical phonon mode, a phenomenon previously unseen. The effects were much stronger than expected by theory, revealing a new way of controlling phonons.

SourceRice University·JournalPhysical Review Letters·TypeExperimental study·DateFeb 15, 2022

Study reveals likely link between mitochondrial dysfunction and age-dependent cognitive disorders

Scientists demonstrate a definitive link between mitochondrial oxidative damage and cognitive dysfunction in Alzheimer's disease using a transgenic mouse model. The study found that Aβ1-42 aggregation in the hippocampus caused cognitive impairment, while oxidation led to mitochondrial dysfunction.

SourceShibaura Institute of Technology·JournalBiomedicines·TypeExperimental study·DateFeb 14, 2022

Psyche, the iron giant of asteroids, may be less iron than researchers thought

New research suggests that asteroid 16 Psyche is likely harboring a hidden rocky component, contradicting initial assumptions about its iron-rich composition. The study's findings indicate that the asteroid's porosity would be unlikely to remain stable over time, and alternative explanations for its metallic surface must be explored.

SourceBrown University·JournalJournal of Geophysical Research Planets·DateFeb 14, 2022

Social support may lower American Indians’ risk of cardiovascular disease, death

A study by Washington State University found that social support can mitigate the risk of heart disease and death in older American Indians. Higher rates of depression symptoms, poor quality of life, and social isolation were linked to increased mortality, but instrumental social support reversed this effect.

SourceWashington State University·JournalSocial Psychiatry and Psychiatric Epidemiology·TypeData/statistical analysis·DateFeb 14, 2022

Reframing the controversial bushmeat trade

Researchers examine the complex relationship between bushmeat consumption and global health, finding that Western definitions of progress may overlook local cultures. By reframing conservation perspectives, they aim to create a more balanced narrative around this contentious trade.

SourceYale University·JournalEnvironmental Research Letters·TypeCommentary/editorial·DateFeb 14, 2022

NOACs associated with lower risk for diabetic complications and mortality compared with warfarin

A retrospective cohort study of patients with atrial fibrillation and diabetes found that non-vitamin K antagonist oral anticoagulants (NOAC) were associated with a lower risk of diabetes complications and mortality than warfarin. The study suggests that NOAC may be a better therapeutic choice for this patient population.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeData/statistical analysis·DateFeb 14, 2022

Fighting poverty won’t jeopardize climate goals

According to a new study, lifting over 1 billion people out of poverty worldwide would increase global carbon emissions by 1.6-2.1%. The main reason for this is the huge inequality in carbon footprint between rich and poor nations. Rich countries emit significantly more carbon than poor ones.

SourceUniversity of Groningen·JournalNature Sustainability·TypeData/statistical analysis·DateFeb 14, 2022

Oestrogen levels linked to risk of COVID-19 death in older women

Research published in BMJ Open found that older women with higher oestrogen levels had a lower risk of severe COVID-19 infection and death. Women taking hormone replacement therapy also showed a significantly reduced risk of dying from COVID-19, highlighting the potential benefits of hormonal treatment in reducing infection severity.

SourceBMJ Group·JournalBMJ Open·TypeObservational study·DateFeb 14, 2022

How climate change is destroying Arctic coasts

Scientists at the University of Hamburg have calculated for the first time the future balance of Arctic coastal erosion, which increases by up to three meters per year with each degree of temperature increase. A shift towards greater sustainability could slow this process, but it's unlikely to stop land loss entirely.

SourceUniversity of Hamburg·JournalNature Climate Change·TypeComputational simulation/modeling·DateFeb 14, 2022

At bioenergy crossroads, should corn ethanol be left in the rearview mirror?

A study by University of Wisconsin-Madison researchers finds that corn ethanol's environmental impacts are worse than expected, with carbon emissions potentially negating any climate advantages. The analysis suggests a shift towards next-generation biofuels made from perennial plants could be necessary.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateFeb 14, 2022

How can we get better at telling misinformation from reliable expert consensus?

A recent study found that people are equally convinced by false and true expert consensus, but provide source information can strengthen the latter. Researchers at UNSW Science's School of Psychology tested this phenomenon and developed strategies to combat misinformation. By providing context on how original sources used evidence to a...

SourceUniversity of New South Wales·JournalCognition·TypeExperimental study·DateFeb 14, 2022

New study finds COVID-19 hotspots in Canadian urban centers

A new study identifies COVID-19 hotspots in Canadian cities across four provinces, with concentrations of cases linked to social determinants of health such as income, housing and visible minority status. The study calls for city-specific public health supports tailored to communities at disproportionate risk of COVID-19.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·TypeObservational study·DateFeb 14, 2022

Helping the body overcome Sars-Cov-2

A team of scientists has identified specific interferon-alpha subtypes that elicit a strong immune response against Sars-Cov-2. These subtypes were found to be highly effective in suppressing the virus, even when combined with antiviral drugs like remdesivir.

SourceRuhr-University Bochum·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 14, 2022

Study performs cost analysis of popular autism interventions

A recent study conducted by researchers at the University of Kansas has analyzed the cost of two commonly used interventions for students with autism spectrum disorder. The results showed that implementing emerging or ineffective interventions can consume valuable resources without promising positive outcomes. The study's goal was to p...

SourceUniversity of Kansas·JournalExceptional Children·TypeData/statistical analysis·DateFeb 14, 2022

Growing the perfect diamond: Simulations reveal interesting geometric patterns

Scientists have simulated the growth of ultra-thin polycrystalline diamond films with promising results. The two-dimensional simulations revealed interesting geometric structures and shed light on how to create robust materials. The research has implications for biomedical science, quantum devices, and other applications.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalActa Materialia·TypeComputational simulation/modeling·DateFeb 14, 2022

Filtering out the noise

Researchers find that familiar stimuli quiet down brain activity in fruit flies, allowing for clearer processing of specific odors. This mechanism applies to neural circuits in other animals, including humans, and is essential for filtering out distractions to focus on relevant information.