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Science News for February 8, 2024


Predicting psychosis before it occurs

A machine-learning tool trained on brain MRI scans of over 2,000 people worldwide can accurately predict psychosis before it occurs. The tool achieved an accuracy rate of 85% in training and 73% in testing, suggesting its potential as a valuable aid for early diagnosis.

SourceUniversity of Tokyo·JournalMolecular Psychiatry·TypeObservational study·DateFeb 8, 2024

Conversion process turns greenhouse gas into ethylene

Engineers at the University of Cincinnati have created a more efficient way to convert carbon dioxide into ethylene, producing a pivotal platform chemical globally. The process, using a modified copper catalyst, holds promise for one day producing ethylene through green energy instead of fossil fuels.

SourceUniversity of Cincinnati·JournalNature Chemical Engineering·TypeExperimental study·DateFeb 8, 2024

University of Cincinnati research links prison time with increase of TB

A new study from the University of Cincinnati finds that being in prison is a significant driver of multidrug-resistant tuberculosis (MDR-TB) transmission. The researchers identified molecular resistance patterns and defined recent transmissions, highlighting the need for targeted interventions to control the MDR-TB epidemic in prisons.

SourceUniversity of Cincinnati·JournalThe Lancet Regional Health - Americas·TypeObservational study·DateFeb 8, 2024

Predictive model of oxaliplatin-induced liver injury based on artificial neural network and logistic regression

Researchers developed an artificial neural network model to predict oxaliplatin-induced liver injury risk based on patient characteristics. The model outperformed traditional logistic regression in predicting the risk of liver injury, suggesting potential benefits for early screening and timely intervention.

SourceXia & He Publishing Inc.·JournalJournal of Clinical and Translational Hepatology·DateFeb 8, 2024

A new “metal swap” method for creating lateral heterostructures of 2D materials

A team of researchers from Tokyo University of Science employed a new 'transmetallation' technique to synthesize lateral heterojunctions of 2D coordination nanosheets. The method enables the creation of ultrathin electronic devices with unique properties, paving the way for innovative devices.

SourceTokyo University of Science·JournalAngewandte Chemie International Edition·TypeExperimental study·DateFeb 8, 2024

End of nuclear secrecy? Underground weapon tests 'now detectable with 99% accuracy'

A team of Earth scientists and statisticians has developed a method that can identify underground nuclear explosions with 99% accuracy. This breakthrough, published in Geophysical Journal International, uses data from known US nuclear tests and seismic patterns to distinguish between nuclear and natural earthquakes.

SourceRoyal Astronomical Society·JournalGeophysical Journal International·TypeData/statistical analysis·DateFeb 8, 2024

NJIT researchers unveil method to detect 'forever chemicals' in under 3 minutes

New Jersey Institute of Technology chemists have developed a lab-based method to detect traces of PFAS from food packaging material, water, and soil samples in just three minutes or less. The approach, involving paper spray mass spectrometry, is 10-100 times more sensitive than current standard techniques for PFAS testing.

SourceNew Jersey Institute of Technology·JournalJournal of Hazardous Materials·DateFeb 8, 2024

Breakthrough in single-photon integration

Researchers from Hebrew University of Jerusalem have successfully integrated single-photon sources onto tiny chips at room temperature using a hybrid metal-dielectric bullseye antenna. This innovation enables efficient back-excitation and front coupling of emission to optical fibers or low numerical aperture optics, promising advanceme...

SourceThe Hebrew University of Jerusalem·JournalNano Letters·TypeExperimental study·DateFeb 8, 2024

Evaluating the performance of AI-based large language models in radiation oncology

A new study evaluates AI algorithms for autocontouring prior to radiotherapy in head and neck cancer. OpenAI's GPT-4-turbo demonstrated the best performance, while Llama-2 models underperformed. The study highlights the potential of generative AI to revolutionize radiation oncology education and practice.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalAI in Precision Oncology·TypeExperimental study·DateFeb 8, 2024

Tropical cyclone genesis projected to move toward the poles

Researchers found a poleward shift of tropical cyclone genesis on a global scale due to climate change, with the rate of TC genesis decreasing within latitudes equatorward of 15° and increasing poleward of 15° in each basin. The weakening of the Hadley circulation driven by increased upper tropospheric warming is attributed to this shift.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalGeophysical Research Letters·DateFeb 8, 2024

Low voice pitch increases standing among strangers

A cross-cultural study found that lower voice pitch makes women and men sound more attractive for long-term relationships and more formidable among other men. Lower male voice pitch also confers formidability and high social status in societies with higher relational mobility, suggesting evolutionary origins.

SourcePenn State·JournalPsychological Science·DateFeb 8, 2024

Ketamine’s promise for severe depression grows, but major questions remain

New findings from a study on ketamine's efficacy in treating severe depression reveal that 52% of participants achieved remission after just three infusions. The study also found that half of those who had thought often of suicide before receiving ketamine experienced a dramatic drop in suicidal impulses.

SourceMichigan Medicine - University of Michigan·JournalJournal of Affective Disorders·TypeObservational study·DateFeb 8, 2024

High-profile incidents of police brutality sway public opinion more than performance of people’s local law enforcement, new study from NYU Tandon reveals

A new NYU Tandon study found that high-profile incidents of police brutality have a significant impact on public perceptions, influencing negative sentiment and distrust towards police across cities. In contrast, local media coverage of crimes in people's own cities has little sway over their views of the police.

SourceNYU Tandon School of Engineering·JournalCommunications Psychology·DateFeb 8, 2024

Faulty DNA disposal system causes inflammation

Scientists discovered a novel mechanism for removing mtDNA from mitochondria, which can initiate an immune response promoting inflammation. The discovery reveals new targets for therapeutics to disrupt the inflammatory pathway and mitigate inflammation during aging and diseases.

SourceSalk Institute·JournalNature Cell Biology·DateFeb 8, 2024

Foul fumes pose pollinator problems

A University of Washington team discovered that nitrate radicals in the air degrade scent chemicals released by wildflowers, making them undetectable to nighttime pollinators. The researchers found that pollution likely has worldwide impacts on pollination, with areas including western North America and Europe most affected.

SourceUniversity of Washington·JournalScience·TypeExperimental study·DateFeb 8, 2024

University of Limerick, Ireland research confirms benefits of resistance exercise training in treatment of anxiety and depression

A new study published in Trends in Molecular Medicine found that resistance exercise training can improve anxiety and depressive symptoms. The research suggests that this type of exercise may be a viable alternative to established therapies, offering potential benefits for public health.

SourceUniversity of Limerick·JournalTrends in Molecular Medicine·TypeLiterature review·DateFeb 8, 2024

Study visually captures a hard truth: Walking home at night is not the same for women

A recent study by Brigham Young University researchers shows that women tend to focus more on potential safety hazards when walking home at night, as opposed to men who look directly at their destination. The study used heat maps to visualize participants' attention patterns, providing clear visual evidence of the differing experiences.

SourceBrigham Young University·JournalViolence and Gender·TypeExperimental study·DateFeb 8, 2024

Athira Pharma announces publication in Frontiers in Neuroscience highlighting therapeutic potential of ATH-1105 in amyotrophic lateral sclerosis (ALS)

ATH-1105, a small molecule positive modulator of the neurotrophic HGF system, demonstrates significant neuroprotective effects and extends survival in preclinical models of ALS. The study highlights the therapeutic potential of ATH-1105 in slowing or stopping neurodegeneration.

SourceRathbun Communications, INC.·JournalFrontiers in Neuroscience·TypeExperimental study·DateFeb 8, 2024

Physical activity is insufficient to counter cardiovascular risk associated with sugar-sweetened beverage consumption

A new study found that physical activity levels are insufficient to counter the increased risk of cardiovascular disease associated with consuming sugar-sweetened beverages. Even moderate consumption can lead to higher cardiovascular disease risk, emphasizing the need to limit these drinks' omnipresence in the food environment.

SourceUniversité Laval·JournalAmerican Journal of Clinical Nutrition·DateFeb 8, 2024

Visualising multiple sclerosis with a new MRI procedure

Researchers at ETH Zurich have developed a new magnetic resonance imaging (MRI) procedure that maps the condition of myelin sheaths in the central nervous system more accurately. This breakthrough technology has the potential to facilitate early MS diagnosis and monitoring, as well as the development of new drugs for the disease.

SourceETH Zurich·JournalMagnetic Resonance in Medicine·TypeComputational simulation/modeling·DateFeb 8, 2024

Alien invasion: Non-native earthworms threaten ecosystems

The study reveals that non-native earthworms have colonized 97% of soils across North America, with alien occupation higher in the northern part of the continent. This poses a threat to native ecosystems, including forests and grasslands, and highlights the need for better understanding and management of these invaders.

SourceStanford University·JournalNature Ecology & Evolution·DateFeb 8, 2024

Even with resolution, acute kidney injury in newborns can be life-threatening from very first episode

A recent analysis of the AWAKEN study data found that repeat episodes of acute kidney injury in hospitalized infants do not increase the risk of death but can extend hospitalization. The study suggests that initial AKI is already dangerous and long-term effects are still under investigation.

SourceMedical University of South Carolina·JournalJAMA Network Open·TypeData/statistical analysis·DateFeb 8, 2024

Researchers use satellites to analyze global reef biodiversity

A new satellite mapping technique can aid in coral reef protection and restoration efforts by identifying areas of high habitat diversity, which are also home to high species diversity. The study found that these maps can be used as a proxy for biodiversity, guiding ecosystem protection and restoration.

Stigmatizing language on liver transplant center websites may discourage patients from seeking treatment

A study by Massachusetts General Hospital found that 88% of liver transplant center websites and 46% of addiction psychiatry websites use stigmatizing language, potentially discouraging patients from seeking treatment. The researchers call for non-stigmatizing language in patient-facing materials to improve health outcomes.

SourceMassachusetts General Hospital·JournalJAMA Network Open·DateFeb 8, 2024

Study reveals mechanism that aggravates tuberculosis and reduces survival rates

Researchers found that an imbalance of CD4+ T cells in the lungs can exacerbate tuberculosis, leading to increased disease severity and reduced survival rates. Removing a specific receptor that recognizes extracellular ATP can improve the response of these T cells and potentially lead to new therapeutic interventions.

Why politics bring out the worst in us

A large survey study found that people are willing to engage in immoral behaviors and judgments when participating in political discourse. The researchers attribute this to genuine internal dislike of the opposing party, leading to moral ambiguity. Politics makes us do things we wouldn't normally do, fuelled by outrage politics.

SourceUniversity of Nebraska-Lincoln·JournalPolitical Psychology·TypeSurvey·DateFeb 8, 2024

An innovative eight-phase methodology for analyzing microplastics in soil ecosystem

A team of researchers led by Prof. Yong Sik Ok proposes an innovative eight-phase methodology for analyzing microplastics in soils, addressing the lack of standardized procedures. The methodology emphasizes careful planning, processing, and analysis to ensure accuracy and precision.

SourceCactus Communications·JournalCritical Reviews in Environmental Science and Technology·TypeLiterature review·DateFeb 8, 2024

New research shows students' knowledge and perceptions of active learning declined during pandemic-era teaching

A new study by Chapman University Assistant Professor Jeremy Hsu reveals that students' knowledge and perceptions of active learning declined significantly during COVID-induced remote teaching. The research suggests that limited exposure to active learning practices can lead to resistance and decreased educational outcomes.

SourceChapman University·JournalActive Learning in Higher Education·TypeLiterature review·DateFeb 8, 2024

Breaking through barriers

The team created a trophoblast stem cell-based organoid model that effectively mimics the structural and biological details of the human placenta. This model will help scientists better understand general placental biology and potential drug toxicity, ultimately informing the development of safer drugs.

SourceTokyo Medical and Dental University·JournalNature Communications·DateFeb 8, 2024

New process allows full recovery of starting materials from tough polymer composites

Researchers at Oak Ridge National Laboratory have developed a closed-loop recycling technology for synthesizing and recovering exceptionally tough carbon-fiber-reinforced polymers. The innovative approach enables full recovery of starting materials, accelerating the development of sustainable lightweight materials.

SourceDOE/Oak Ridge National Laboratory·JournalCell Reports Physical Science·TypeExperimental study·DateFeb 8, 2024

The analysis of biological networks allows understanding the complexity of multiple sclerosis

A new computational biology tool has analyzed the complex biological networks of multiple sclerosis patients, revealing relationships between genes, proteins, cells, brain function, and behavior. The study identified correlations between protein MK03 and immune system cell counts, retinal nerve fiber thickness, and gait test results.

SourceUniversitat Pompeu Fabra - Barcelona·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateFeb 8, 2024

Advancing precision diagnostics at the patient point-of-care

A new nanocomposite porous antifouling coating has been developed, enabling higher numbers of biomarker-detecting probes and up to 17-fold higher sensitivities than previous best-in-class sensors. This breakthrough broadens the diagnostic horizon for multiplexed electrochemical sensors across multiple diseases.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalNature Communications·TypeExperimental study·DateFeb 8, 2024

Breakthrough in predicting chaotic outcomes in three-body systems

A new study by the Hebrew University introduces a flux-based statistical theory that predicts chaotic outcomes in non-hierarchical three-body systems. The theory offers a more efficient approach to analyzing complex systems, enabling deeper exploration and understanding of chaotic phenomena.

SourceThe Hebrew University of Jerusalem·JournalCelestial Mechanics and Dynamical Astronomy·TypeComputational simulation/modeling·DateFeb 8, 2024

Nanofiber bandages fight infection, speed healing

Researchers at Cornell University have developed nanofiber-coated cotton bandages that exhibit excellent antibacterial performance against gram-negative and gram-positive bacterial species. The bandages, infused with lawsone, a red-orange compound found in henna leaves, also show antioxidant and anti-inflammatory properties.

SourceCornell University·JournalInternational Journal of Pharmaceutics·DateFeb 8, 2024

This common medication could save half a million children’s lives each year. So why is it underprescribed?

A new study found that healthcare provider perceptions of patient preferences are the biggest barrier to prescribing oral rehydration salts (ORS), which costs only a few cents. Patients expressing a preference for ORS increased prescribing by 27 percentage points, making it an effective intervention.

SourceUniversity of Southern California·JournalScience·TypeRandomized controlled/clinical trial·DateFeb 8, 2024

Are environmental toxins putting future generations at risk?

A McGill-led study found that fathers exposed to environmental toxins like DDT may produce sperm with health consequences for their children, increasing the risk of birth defects and diseases. The study's findings highlight the importance of considering fathers in discussions about child health and development.

SourceMcGill University·JournalEnvironmental Health Perspectives·DateFeb 8, 2024

Trends in phenylephrine and pseudoephedrine sales

Despite a lack of clinical efficacy evidence, phenylephrine remained the most common oral decongestant in the US from 2012-2021, with hundreds of millions of units sold annually. Most phenylephrine products were co-formulated with antihistamines or antitussives, providing symptom relief for cough and cold symptoms.

SourceJAMA Network·JournalJAMA·DateFeb 8, 2024

Ancient pollen trapped in Greenland ice uncovers changes in Canadian forests over 800 years

A new study used pollen analysis to track forest changes in eastern Canada spanning 850 years, from the Medieval Warm Period to extensive logging by European settlers. The research provides a precise chronology of forest composition and helps establish baselines for evaluating changes in forest cover as the global climate warms.

SourceDesert Research Institute·JournalGeophysical Research Letters·DateFeb 8, 2024

The Lancet: Black women in the USA were murdered six times more often than White women between 1999 and 2020, state-level analysis indicates

A recent analysis found that Black women in the USA have significantly higher homicide rates compared to their White peers, with disparities increasing from 1999 to 2020. Gun deaths among Black and White women also increased, with Black women being more likely to be killed by firearms.

SourceThe Lancet·JournalThe Lancet·TypeObservational study·DateFeb 8, 2024