A UK study has found that officers with strong support networks and a sense of meaningful work have lower rates of Complex Post-Traumatic Stress Disorder (C-PTSD), highlighting the need for improvements in police working lives.
Researchers use machine learning to generate beta-barrel proteins that can detect metal ions in water, a potential solution for identifying pollutants like lead in waterways. The 'deep-fake' protein is designed to be ideal for binding specific metals and creating conductance differences.
Researchers found increasing water storage in recent decades, despite declining long rains season, which points to a potential silver lining for climate adaptation. Groundwater may support increasingly food and water insecure rural populations in the Horn of Africa drylands.
A new system has been developed to deliver ultrasound stimulation to the brain in awake, naturally behaving mice, allowing researchers to evaluate its effects on sleep and working memory. This advance will help scientists test different ultrasound treatment protocols in mouse models of diverse neurological conditions.
A study published in Nature suggests that ocean heating in the western tropical Pacific will make the East Asian monsoon season wetter. The researchers found a correlation between increases in monsoonal rain in eastern China and the heat content of the Indo-Pacific Warm Pool over the past 360,000 years.
Ancient tree conservation is crucial for maintaining ecosystem integrity and mitigating climate change. The researchers propose a two-pronged approach to protect these trees, including germplasm conservation and forest rewilding.
Researchers compared pre- and post-pandemic surgical procedure volumes, finding significant changes in essential, urgent, and nonurgent procedures. Elective surgeries restrictions led to reduced overall surgery volume, with a notable decrease in nonurgent cases.
A study published in Body Image found that social media use is associated with lower appearance satisfaction. Engaging with content from friends and family was found to have a significantly stronger negative impact on appearance satisfaction compared to celebrities or influencers.
New research published in Nature suggests that the earliest gills played a crucial role in ion regulation, contradicting traditional views on their evolution. The study found ion-regulating cells in the gills of lampreys, amphioxus, and acorn worms, revealing an early chapter in the evolutionary story of gills.
Research found that the Black Death drove changes in immune-related genetic variants, affecting disease susceptibility. A specific gene variant, ERAP2, was associated with increased protection against the plague, but also linked to autoimmune diseases like Crohn's disease.
A UK trial found that offering up to £400 in shopping vouchers to pregnant women can more than double the proportion who remain smoke-free by late pregnancy. However, most women relapsed after giving birth. The study suggests that financial incentives can be an effective tool to reduce smoking during pregnancy and improve health outcomes.
In a study published in PLOS ONE, researchers found that large pelagic fish prefer using sharks as scratching surfaces for parasites. In contrast, smaller fish tend to avoid taking this risk due to the threat of predation, highlighting the adaptability of these species.
A Princeton team invented a way to observe bacteria in 3D environments, finding that colonies consistently form intricate, branching shapes resembling broccoli. They discovered two factors causing these shapes: nutrient and oxygen availability, and the colony's internal structure.
Researchers at Princeton University found that mice who displayed defensive behaviors after a stressful event were more resilient. They also discovered that activating dopamine while fighting back reinforced resilience, a finding that could potentially inform strategies for building human resilience.
Scientists at NTU Singapore have found that a stress response in cells, when 'switched on' at a post-reproductive age, could be the key to slowing down aging. The study showed that this stress response extended the lifespan of roundworms fed a high-glucose diet.
A new study found that hormone therapy experiences differ significantly by race among women experiencing menopause symptoms. White women reported higher rates of hormone therapy use and better quality of life compared to women of other ethnicities.
Researchers develop stable catalyst that can produce ammonia at rates similar to conventional metal nitride catalysts, reducing the need for fossil fuels and lowering CO2 emissions. The new catalyst is chemically stable in the presence of moisture, enabling more efficient production under milder conditions.
A team of scientists has identified over 200 direct protein-protein contacts between the SARS-CoV-2 virus and human cells, shedding light on the mechanisms underlying severe COVID-19. The study reveals chains of connections between viral proteins and infection-relevant human genes, with implications for disease severity and treatment.
USC Norris Comprehensive Cancer Center is partnering with the Chinatown Service Center to address disparities in cervical cancer screening and treatment. The partnership aims to optimize access, shorten diagnosis-to-treatment timeframes, and enhance quality of care for Chinese and Latina women in Los Angeles.
Researchers have successfully blocked the adhesion mechanism of Bartonella henselae bacteria, preventing cell infection. The discovery offers a promising new approach to combat highly resistant infectious agents like Acinetobacter baumannii.
Researchers develop mechanical neural networks (MNNs) with tunable beams that can learn behaviors and adapt to external forces. The MNNs, composed of a triangular lattice pattern, exhibit smart properties through machine learning algorithms. Early prototypes overcame lag issues and achieved accurate performance in various applications.
Researchers analyzed DNA from victims and survivors of the Black Death to identify genetic differences that determined who lived and died. The study found four genes involved in immune defense against pathogens, with versions of these genes linked to increased susceptibility to autoimmune diseases.
The majority of pregnancy-associated homicides are linked to intimate partner violence and firearms, and are entirely preventable. Ending male violence, including gun violence, could save hundreds of lives in the US every year.
A study of over 17,000 first-year medical residents found a strong correlation between hours worked and depression symptoms. Working long hours was associated with a larger rise in depression symptoms, pushing some residents into moderate or severe depression.
Helmholtz Munich researchers identified a novel strategy to alter glucagon receptor signaling by changing its intracellular localization. This approach offers therapeutic potential for treating type 2 diabetes by uncoupling glucose and lipid metabolism-related effects.
A new study by Johns Hopkins Medicine reveals that stress influences appetite in both obese and lean adults, with differences in brain responses to food. The research found that obese individuals show increased activation of the orbitofrontal cortex after stress, while lean adults exhibit lower activation of cognitive control regions.
The study, led by Johanna Joyce, develops a strategy to noninvasively monitor key immune cells known as macrophages within brain and breast tumors. The researchers use nanoparticles labeled with fluorine isotopes that emit distinctive signals detectable by MRI, allowing for the direct imaging of TAMs across tumor geography.
Researchers identified unique mutations in the omicron spike protein adapted to the mouse receptor, suggesting possible animal origin. The findings also highlight the importance of epidemic surveillance of rodents to stop new COVID-19 variants.
A recent study from the Alliance of Bioversity International and CIAT shows that tricot, a citizen science approach for on-farm experimentation, generates agricultural data via local organizations in Central America. The approach enables farmers to contribute their time and land, reducing trial costs and increasing applicability.
Researchers at Hokkaido University have discovered the importance of Frazil ice in producing dense cold water, which is a key component of global ocean circulation. This finding has significant implications for understanding the impact of global warming on this process.
A recent UNLV-led study discovered that women enthusiastically embraced live chat during pandemic Zoom classes, with ratings showing significantly higher engagement than men. The researchers hope this data can help colleges incorporate technology into hybrid and in-person courses to increase underrepresented groups' access to STEM fields.
Researchers at Leibniz-HKI discovered a yellow natural substance that regulates the multicellular stage of the amoeba <em>D. discoideum</em>. The polyketide, dictyoden, prevents premature hatching from spores, maintaining the development cycle. The study provides insights into the complex transition from single- to multicellularity.
A long-term study on infants and young children with increased genetic risk of type 1 diabetes found that metabolic changes occur much earlier than previously assumed. Blood sugar levels were found to be higher in children who developed autoimmunity, suggesting a potential indicator for islet cell dysfunction.
Research into Myanmar amber fossils is hindered by the country's ongoing political, legal, and economic crises. The strict restrictions on research access have led to international researchers acquiring the valuable amber for study.
Researchers analyzed DNA from 13 Neandertals, finding evidence of a close-knit community with 10-20 individuals. Genetic data suggests that female migration played a key role in maintaining the group's cohesion, contradicting previous theories about male-dominated movements.
A US team, led by Louisiana State University scientist Jun-Hong Liang, is studying air-sea gas exchange in the Labrador Sea to develop accurate formulas. The research aims to improve estimations of biological production and carbon dioxide/oxygen sequestration in deep oceans.
The Chang'E-5 mission returned samples that revealed a previously unknown iron-rich and high-calcium surface of basalts, challenging previous assumptions about the lunar geology community. The samples were primarily composed of pyroxene, contradicting earlier studies that indicated a high abundance of olivine.
Researchers at Drexel University have developed a composite material that can absorb and dissipate electromagnetic waves, reducing electromagnetic interference. The MXene-polymer coating has shown to be highly effective in absorbing energy at greater than 90% efficiency.
A meta-analysis of six studies concludes that electroconvulsive therapy (ECT) is more effective than ketamine in quickly relieving major depression symptoms. The analysis, published in JAMA Psychiatry, found no significant differences in ECT's success rate across various age groups and geographic locations.
The study found that scrubber discharge water accounts for up to 9% of certain carcinogenic and environmentally harmful substances in the Baltic Sea. This increase is partly due to a significant growth in ships equipped with scrubbers, which has tripled since the study was carried out.
Researchers found that influencer originality, follower size, and sponsor salience enhance the effectiveness of a message. A balanced approach is most effective, with too little or too much posting hurting engagement. Firms should search for influencers with followers that overlap but aren't an exact match to achieve optimal brand-fit.
The Pantheon+ analysis reveals that the universe is composed of about two-thirds dark energy and one-third matter, mostly in the form of dark matter. This finding strengthens the Standard Model of Cosmology, but also highlights an unresolved disagreement over the pace of expansion.
A Washington State University study showed that drone photography can effectively estimate the number of rocky hollows in the Wenatchee River where salmon create their eggs. The researchers found roughly double the number of redds using drones compared to ground-level observations, but with high variability. This technology has potenti...
Scientists at Swinburne University of Technology and FLEET collaborators observe and explain signatures of Fermi polaron interactions in atomically-thin WS2 using ultrafast spectroscopy. Repulsive forces arise from phase-space filling, while attractive forces lead to cooperatively bound exciton-exciton-electron states.
Health advocacy groups are concerned that period product ingredient lists are not detailed enough and haven't been tested for safety. Despite increased disclosure, many chemicals listed have not been evaluated for use on vulva and vagina skin, limiting consumer informed purchasing decisions.
Tardigrades can survive drying, freezing, heat, and space due to their unique trehalose-protein combination. Researchers discovered that trehalose works synergistically with another tardigrade-specific protein called CAHS D.
Fossils of ostrich-like dinosaurs from Mississippi provide valuable insights into the diversity and distribution of North American ornithomimosaurs. The discovery reveals that these dinosaurs lived side-by-side with multiple species, including giant body sizes weighing over 800kg.
A retrospective study of 26,000 patients with cirrhosis found that receiving a third dose of the COVID-19 vaccine reduced overall and severe cases by 80% and 100%, respectively. This suggests that a third dose can overcome vaccine hyporesponsiveness in patients with cirrhosis.
The study will gather data from over 500 adults with monkeypox to determine the effectiveness and safety of tecovirimat. Participants with severe disease or high risk of severe disease will receive open-label tecovirimat, while others will be randomly assigned to receive either tecovirimat or placebo.
Researchers discovered two distinct types of regret linked to separate parts of the brain, influencing stress response and mood disorders. Stress-susceptible mice were hypersensitive to one type, while healthy mice were sensitive to another.
A pilot study found that a firearm safety program may not reach all parents equitably, with disparities affecting girls and some racial and ethnic minorities. The program aims to reduce suicide deaths by securely storing firearms.
A new radiotracer, 18F-SMBT-1, detects overexpressed monoamine oxidase-B in cognitively unimpaired individuals with high beta amyloid levels, a key early sign of Alzheimer's disease. The agent shows increased binding to reactive astrocytes, suggesting its potential as a surrogate marker for detecting Alzheimer's disease.
Researchers discovered Borgs, DNA packages that supercharge methane-eating microbes' metabolic rate. These genetic elements play a role in balancing atmospheric methane levels by encoding cellular machinery for methane consumption.
A recent analysis found that higher BMI in adolescent men is strongly associated with developing early atrial fibrillation, as well as subsequent worse clinical outcomes after diagnosis. Men with higher BMIs had significantly increased risks of mortality, heart failure, and ischemic stroke.
Researchers have successfully cultivated Cordyceps mushrooms on edible insects, resulting in significantly higher levels of cordycepin. The study found that insect fat content, particularly oleic acid, plays a crucial role in cordycepin production.
Scientists have developed a new method to store and retrieve digital data encoded in DNA molecules using enzymes. The approach enables complex calculations on DNA-encoded data without converting it back into electronic form.
Researchers found that accounting for family, school, and neighborhood hardship narrows the gap by more than 60% between Black and white students. The study suggests systemic economic inequality and segregated schools are primary drivers of educational inequality.
A deep learning algorithm trained on adult populations shows improved sensitivity for diagnosing thyroid nodules in children, with higher accuracy than traditional ACR TI-RADS. The study suggests the potential benefits of this new approach for evaluating thyroid nodules in younger patients.
Scientists at OHSU have identified synaptotagmin-3 (SYT3) as a crucial protein for replenishing neurotransmitters between neurons. This discovery sheds new light on the underlying causes of neurological disorders such as epilepsy and autism, and may lead to the development of gene therapies or pharmaceutical approaches targeting SYT3.
A Rutgers University study has revealed that spice containers are a common source of cross-contamination in kitchens, with nearly half of samples showing evidence of contamination. The study's findings highlight the importance of proper handwashing and sanitizing of kitchen surfaces to prevent the spread of foodborne illnesses.