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Science News for February 4, 2025


Illuminating the beginnings of animal development

Researchers discovered that cell motion shows asymmetry before left-right organizer formation in early animal development, contradicting earlier findings on genetics. This study sheds new light on the origin of bilateral symmetry and could apply to human birth defects.

SourceUniversity of Miami·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 4, 2025

New research reveals that meditation induces changes in deep brain areas associated with memory and emotional regulation

Researchers used intracranial EEG recordings to find that meditation led to changes in the amygdala and hippocampus, key regions involved in emotional regulation and memory. Loving kindness meditation was specifically found to be associated with changes in brain wave activity.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateFeb 4, 2025

Listening for multiple mental health disorders

Researchers developed a machine learning tool that screens for comorbid depression and anxiety disorders using acoustic voice signals. The study confirmed that a one-minute verbal fluency test can reliably identify subjects with comorbid AD/MDD, who tend to use simpler words and exhibit reduced variability in phonemic word length.

SourceAmerican Institute of Physics·JournalJASA Express Letters·DateFeb 4, 2025

Forest landowner motivation to control invasive species depends on land use, study shows

A new study from the University of Illinois explores how differences in ownership motivation affect willingness to control invasive plants and pests. The research suggests that providing subsidies to the weakest link, such as recreationist landowners, can optimize the effect of control efforts and reduce costs.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalLand Economics·TypeComputational simulation/modeling·DateFeb 4, 2025

Financial comfort and prosociality

A study of 80,337 people across 76 countries found that those with higher incomes and financial well-being reported greater prosocial actions and attitudes. Higher income individuals were more likely to donate, volunteer, and trust others, although they also showed lower trust in others.

SourcePNAS Nexus·JournalPNAS Nexus·DateFeb 4, 2025

Visualization of chemical phenomena in the microscopic world using semiconductor image sensor

A team developed a semiconductor sensor to visualize biomolecule dynamics in solutions, achieving milliseconds time resolution and micron spatial resolution. The sensor captures movement of neurotransmitters and ions, enabling the detection of chemical signals in microscopic regions.

SourceToyohashi University of Technology (TUT)·JournalBiosensors and Bioelectronics·TypeExperimental study·DateFeb 4, 2025

Omega-3s can slow down aging process

A recent study led by Heike Bischoff-Ferrari found that taking omega-3 fatty acids slowed down biological aging across several epigenetic clocks by up to four months. The combination of omega-3, vitamin D, and strength training proved to be even more effective in slowing down the biological aging process.

SourceUniversity of Zurich·JournalNature Aging·TypeExperimental study·DateFeb 4, 2025

HKUST scientists identify Alzheimer’s disease-protective genetic factors and unravel disease mechanisms

A comprehensive genetic analysis of East Asian populations has identified key SORL1 genetic variants that confer protective effects against Alzheimer's disease. Individuals carrying these variants exhibited improved cognitive function, decreased neurodegeneration, and less severe AD pathology.

SourceHong Kong University of Science and Technology·JournalAlzheimer’s & Dementia·TypeExperimental study·DateFeb 4, 2025

Wobbling stars reveal hidden companions in Gaia data

Two new celestial objects have been confirmed using Gaia data, including a Super-Jupiter exoplanet and a brown dwarf. The discovery challenges current theories of planet formation and provides valuable data for understanding these intriguing objects. Gaia's ongoing mission will uncover hundreds of planets and brown dwarfs around nearby...

SourceEuropean Space Agency·JournalThe Astrophysical Journal·TypeObservational study·DateFeb 4, 2025

Big cities fuel inequality

A study reveals that large cities have ceased to be centers of upward social and economic mobility, with population density and connectedness associated with reduced intergenerational mobility. Urban expansion has also led to decreased average social capital, contributing to growing inequality within and across generations.

SourcePNAS Nexus·JournalPNAS Nexus·DateFeb 4, 2025

Comprehensive health monitoring and treatment in one unit—from health monitoring to drug delivery: The development of a versatile smart patch—

Researchers developed a smart patch that integrates sensors and drug delivery systems, enabling real-time biometric signal monitoring and immediate drug administration. The technology has high applicability across various medical fields, including glucose management and chronic disease treatment.

Music can touch the heart, even inside the womb

Researchers found that playing classical music can smooth variations in fetal heart rates, indicating potential benefits for fetal development. The study used mathematical analysis tools to identify patterns in heart rate variability and found that exposure to music resulted in more stable and predictable patterns.

SourceAmerican Institute of Physics·JournalChaos An Interdisciplinary Journal of Nonlinear Science·DateFeb 4, 2025

Why your headphone battery doesn't last

A team of engineers from the University of Texas at Austin used x-ray, infrared, and other imaging technologies to investigate battery degradation in wireless earbuds. They found that temperature gradients, caused by clashes between critical components and the battery, led to damage and reduced battery life.

SourceUniversity of Texas at Austin·JournalAdvanced Materials Technologies·DateFeb 4, 2025

Study debunks nuclear test misinformation following 2024 Iran earthquake

A recent study published in Seismica journal has debunked claims that a magnitude 4.5 earthquake in Iran was a covert nuclear weapons test. The researchers analyzed seismic signals from the event and concluded that it was caused by natural geological forces, contradicting widespread misinformation on social media and news outlets.

SourceJohns Hopkins University·JournalSeismica·TypeData/statistical analysis·DateFeb 4, 2025

New research: Social media bridges connection gaps for students with disabilities

A new study from Michigan State University reveals that social media plays a crucial role in connecting students with disabilities to others who share similar experiences. The research found that students with disabilities use social media as a tool for self-advocacy, identity exploration, and accessing vital resources.

SourceMichigan State University·JournalJournal of Contemporary Issues in Education·DateFeb 4, 2025

What’s the best way to organize people to generate ideas? New research offers insight

Researchers from Binghamton University discovered that connecting people with similar views or backgrounds leads to less diverse ideas. Conversely, interacting with a limited number of others produces higher-quality ideas. The study suggests that promoting biodiversity through idea generation is key to achieving optimal results.

SourceBinghamton University·Journalnpj Complexity·TypeExperimental study·DateFeb 4, 2025

Asthma and antibiotic use may predict nasal polyp recurrence after endoscopic sinus surgery

Researchers found a strong association between asthma and repeated antibiotic use in predicting nasal polyp recurrence after endoscopic sinus surgery. The study suggests that patients with severe chronic rhinosinusitis with nasal polyps may benefit from additional treatments like biologics to manage the disease.

SourceUniversity of Eastern Finland·JournalClinical and Translational Allergy·DateFeb 4, 2025

Utah law allowing minors to revoke medical consent is ‘attacking the foundation of the US healthcare system’

A new law in Utah allows minors to revoke their informed consent for gender-affirming care, casting a cloud over the trusted process between doctors and patients. This legislation puts clinicians at risk of litigation and may limit access to necessary medical treatments.

SourceBoston University School of Public Health·JournalNew England Journal of Medicine·TypeCommentary/editorial·DateFeb 4, 2025

DGIST develops “two birds with one stone” technology that generates electricity and light simultaneously using only movement

The researchers developed a system that generates electricity and light simultaneously using motion and pressure, stably producing up to 60V and 395nA without degrading performance. This technology has the potential to improve safety in disasters and sports, as well as reduce environmental impact through energy harvesting.

SourceDGIST (Daegu Gyeongbuk Institute of Science and Technology)·JournalAdvanced Sustainable Systems·DateFeb 4, 2025

Innovative apatite nanoparticles for advancing the biocompatibility of implanted biodevices

Researchers developed surface-modified apatite coatings using pH control to enhance cell adhesion and improve the biocompatibility of implants. The study found that controlling the nanoscale surface layer of apatite nanoparticles leads to better binding affinity with biological tissues.

SourceNagaoka University of Technology·JournalACS Applied Materials & Interfaces·TypeExperimental study·DateFeb 4, 2025

Coal emissions cost India millions in crop damages

A new study by Stanford University researchers found that coal-fired power stations drag down annual wheat and rice yields by 10% or more due to NO2 emissions. Eliminating these emissions could boost rice output by $420 million per year and wheat output by $400 million per year.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2025

Number of family caregivers supporting older adults increased nearly one-third between 2011 and 2022

The number of family caregivers supporting older adults living in home and residential-care settings increased to 24.1 million, a 32% rise from 18.2 million in 2011. Caregiving responsibilities continued to fall primarily to women, with those caring for individuals with dementia facing unique challenges.

CNIC scientists design an effective treatment strategy to prevent heart injury caused by a class of anticancer drugs

Researchers at the CNIC have designed a treatment strategy to protect the heart against cardiotoxic effects of anthracyclines, a common class of anticancer drugs. Empagliflozin, an SGLT2 inhibitor, has been shown to preserve cardiac function and metabolism in experimental models.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalJACC CardioOncology·TypeExperimental study·DateFeb 4, 2025

Painted lady butterflies migrations and genetics

A study on painted lady butterfly migrations found that environmental conditions, rather than genetic coding, drive their migratory patterns. The research revealed that butterflies can travel vast distances, crossing the Sahara Desert, without showing significant genomic differences between short and long-distance migrants.

SourcePNAS Nexus·JournalPNAS Nexus·DateFeb 4, 2025

Diabetes-linked amputations surge in Oklahoma amid national decline, OU study finds

A new University of Oklahoma study found that diabetes-linked amputations are rising in Oklahoma, with the statewide rate nearly doubling between 2008 and 2019. The study analyzed over 1.3 million anonymized discharge records and found that rates were highest among males, American Indians, and those with poor health insurance coverage.

SourceUniversity of Oklahoma·JournalJournal of Vascular Surgery·TypeObservational study·DateFeb 4, 2025

Helping viruses deliver a knockout blow for killer bacteria

A new genomic toolkit called Sphae has been developed to quickly assess the suitability of phage therapy for treating antibiotic-resistant bacterial strains. The platform can analyze vast datasets in under 10 minutes, prioritizing safety and flagging genes associated with toxins or undesirable traits.

SourceFlinders University·JournalBioinformatics Advances·TypeComputational simulation/modeling·DateFeb 4, 2025

Spinning neutron star gains enormous magnetic fields

Researchers identified a new process leading to formation of low-field magnetars, solving the mystery that puzzled scientists since their discovery in 2010. The team used advanced simulations to model magneto-thermal evolution of neutron stars, finding that a specific dynamo process can generate weaker magnetic fields.

SourceNewcastle University·JournalNature Astronomy·DateFeb 4, 2025

KAIST develops AI-driven performance prediction model to advance space electric propulsion technology​

The KAIST research team developed an AI-based technique to accurately predict Hall thruster performance, significantly reducing the time and cost associated with iterative design, fabrication, and testing. The trained neural network ensemble model offers detailed analyses of performance parameters, accounting for key design variables.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalAdvanced Intelligent Systems·TypeExperimental study·DateFeb 4, 2025

Globetrotting not in the genes

Scientists studied painted lady butterflies' migration patterns and found that environmental conditions shape their travel behavior, with some crossing the Sahara Desert. Contrary to previous belief, genetic analysis revealed no difference in DNA sequences between short- and long-trip butterflies.

SourceInstitute of Science and Technology Austria·JournalPNAS Nexus·TypeData/statistical analysis·DateFeb 4, 2025

Quantum machine offers peek into “dance” of cosmic bubbles

Physicists have gained valuable insights into false vacuum decay using a quantum machine, which could determine the ultimate fate of the Universe. The simulation reveals complex interactions between bubbles in a false vacuum, offering new possibilities for studying the fundamental physics of the Universe.

SourceUniversity of Leeds·JournalNature Physics·TypeComputational simulation/modeling·DateFeb 4, 2025

New CAMH-developed drug shows promise in reversing memory loss for early Alzheimer's patients

A new drug developed by the Centre for Addiction and Mental Health (CAMH) has shown significant promise in reversing memory loss in a mouse model of Alzheimer's disease. The drug, GL-II-73, selectively targets GABA receptors to restore brain function and repair damaged neural connections.

SourceCentre for Addiction and Mental Health·JournalNeurobiology of Aging·TypeExperimental study·DateFeb 4, 2025

Patient advocates from NCCN guidelines panels share their ‘united by unique’ stories for world cancer day

The National Comprehensive Cancer Network is joining the global effort to improve awareness and knowledge of cancer risks through its 'United by Unique' campaign. Patient advocates from NCCN guidelines panels are sharing their personal stories to highlight the importance of a people-centered approach in cancer care, which recognizes ev...

New computational tool could improve discovery of cancer treatments

A new tool named retriever extracts disease-specific drug response signatures to predict cancer treatment combinations, improving personalized treatment strategies. The tool refines predictions using single-cell RNA sequencing data and demonstrates its potential in identifying effective treatments for triple-negative breast cancer.

SourceeLife·JournaleLife·DateFeb 4, 2025

High PM2.5 levels in Delhi-NCR largely independent of Punjab-Haryana crop fires

The study used a network of 30 sites to analyze air pollution in Delhi-NCR and found that crop residue burning in Punjab and Haryana has a lower contribution to PM2.5 levels than previously thought. The research suggests that the buildup of PM2.5 in Delhi-NCR is primarily of local origin.

SourceResearch Institute for Humanity and Nature·Journalnpj Climate and Atmospheric Science·TypeObservational study·DateFeb 4, 2025

Contribution of cannabis use disorder to new cases of schizophrenia has almost tripled over the past 17 years

A new study found that cannabis use disorder is increasingly associated with new schizophrenia cases in Ontario, with the proportion rising from 4% to 10%. The trend has tripled over the past 17 years, with heavy cannabis use linked to worsening symptoms and increased risk of psychosis.

SourceInstitute for Clinical Evaluative Sciences·JournalJAMA Network Open·TypeObservational study·DateFeb 4, 2025

AI boosts employee work experiences

A new study found that AI assistance increases worker productivity by 15% in customer service sectors, with significant improvements in speed and quality for less-experienced employees. However, its impact is minimal on higher-skilled workers, while adherence to AI recommendations leads to larger gains in productivity.

SourceOxford University Press USA·JournalThe Quarterly Journal of Economics·TypeData/statistical analysis·DateFeb 4, 2025

Maternal stress during pregnancy could leave traces in the placenta that could affect the baby’s development

A study found that maternal stress can alter genes related to cortisol regulation in the placenta, potentially affecting foetal development. The research team analyzed placentas from 45 healthy pregnant women and identified epigenetic changes associated with glucocorticoid-related genes.

SourceUniversity of Barcelona·JournalEuropean Neuropsychopharmacology·TypeExperimental study·DateFeb 4, 2025