A team of scientists found that the dire wolf evolved in isolation from gray wolves and coyotes, with no evidence of interbreeding or gene flow between the two species. This discovery sheds light on the dire wolf's origins and evolution, revealing a unique genetic history.
A recent study on octopus rubescens found a significant adaptability to short-term exposure to acidic water, with metabolic rates returning to normal after 1 week. Long-term effects were less pronounced, with reduced oxygen circulation and function in low-acidity conditions.
A new class of crystalline material called avalanching nanoparticles (ANPs) overcomes the diffraction limit without heavy computation or a super-resolution microscope. ANPs enable real-time high-resolution bioimaging of cells' organelles and proteins, as well as ultrasensitive optical sensors and neuromorphic computing.
Researchers sequenced ancient DNA from dire wolf sub-fossils, showing they diverged from grey wolves over 5 million years ago. Dire wolves remained isolated in North America for millions of years, becoming genetically distinct from other canids.
A new type of high-performance optical sensor has been demonstrated that utilizes the surface tension of liquid to concentrate and trap analyte molecules at sensitive locations, enhancing sensitivity performance. The sensor can detect picogram levels of analyte mass with readily detectable optical signals.
Researchers have identified a unique genetic 'mimicry switch' that determines whether male and female Elymnias hypermnestra palmflies mimic the same or different species. The study found that sexual dimorphism arose repeatedly in different populations, linked to a gene associated with melanin localization and regulation.
Researchers identify DNA-RNA hybrids as a key factor in ALS progression, leading to increased genomic damage and genetic instability. This breakthrough opens new avenues for understanding the disease's molecular basis and developing therapies to slow its evolution.
Researchers from the University of Gothenburg developed a cheap blood test that can detect Alzheimer's disease earlier than current methods. The test analyzes phosphorylated tau protein levels in blood and shows potential for predicting and monitoring disease progression.
The University of Houston's Supply Chain & Logistics Technology bachelor's and master's degree plans have earned CILT certification, making students eligible for membership and the CILT credential. This marks the first such distinction for any academic program in the US.
A new laser-steering microrobot allows for precise control of laser beams in minimally invasive surgeries, enhancing surgical capabilities and precision. The device, developed by Harvard researchers, can be integrated into existing endoscopic tools and offers a non-disruptive solution for advancing surgery.
The Marlene and Spencer Hays Foundation has awarded COMBINEDBrain a $68,000 grant to support the development of treatments for rare genetic neurodevelopmental disorders. The consortium of patient advocacy groups, researchers, and clinicians will use the funding to prepare for clinical trials and bring in more researchers.
Researchers discovered that mosquitoes carrying Wolbachia bacteria are less susceptible to widely used pesticides. The study found that the bacterial species naturally infecting mosquitoes makes them resistant to three types of pesticide, potentially reducing their use and environmental impact.
Researchers discovered hundreds of previously unknown genetic variations affecting small molecule concentrations in the blood, which can impact diseases such as diabetes and eye disorders. The findings provide valuable biomarkers for clinical diagnosis and therapy.
A study by the University of Wyoming reveals that climate and erosion rates significantly impact the relative importance of physical and chemical weathering in rock breakdown. Anisovolumetric weathering, a previously underrecognized process, is now recognized as a common occurrence, influenced by environmental conditions.
Researchers achieved a novel approach to control the interactions between microwave photons and magnons, enabling on-demand tunability of microwave-magnonic devices. This breakthrough has significant implications for electronic devices and quantum signal processing, potentially leading to advances in both fields.
Researchers developed a new way to assess exactly what's in that cup of joe. They found 12 compounds with measurable concentrations, and two had significantly different amounts between the coffee varieties. The team's predictions were within 15% of the actual ratio.
Researchers found that adding capsaicin to perovskite solar cells increases electron density and reduces nonradiative recombination, leading to more efficient and stable devices. The addition also promotes charge transport and suppresses heat losses.
A study found nearly half of summer camps didn't have official policies requiring campers be vaccinated, with only 39% mandating staffers vaccinations. Camps allow unvaccinated children with nonmedical exemptions to attend programs.
The ETH researchers conclude that continuing to power aircraft with fossil fuels and removing CO2 emissions using Carbon Capture and Storage (CCS) is a cost-effective option for achieving carbon neutrality. Indirectly capturing CO2 from waste incineration gases also shows promise, costing significantly less than direct air capture.
A recent study by Arizona State University analyzed large-scale land acquisitions and their impact on climate change. The research found that implementing environmental regulations can significantly reduce carbon emissions, but this comes at the cost of reducing the amount of land available for agricultural development.
The study suggests that up to half of land ecosystems could reach a tipping point where they release more carbon than they absorb by 2100 under a business-as-usual emissions scenario. Biomes with high carbon storage, such as rainforests and Taiga forests, may lose over 45% of their carbon sink capabilities by midcentury.
Physicists Luca Comisso and Felipe Asenjo propose a new method to extract energy from rotating black holes by breaking and reconnecting magnetic field lines. This process could accelerate plasma particles to negative energies, allowing for massive amounts of energy extraction with an efficiency of up to 150%.
A new study by RAND Corporation found that the density of licensed and unlicensed marijuana retailers is associated with increased marijuana use among young adults. Young adults living near areas with high concentrations of licensed outlets were more likely to use marijuana, while those living near unlicensed outlets reported greater h...
Scientists at Temple University Health System have identified Kruppel-like factor 5 as a key protein driving both oxidative stress and toxic lipid accumulation in the heart. This discovery opens up new avenues for treating various types of cardiac disease, including diabetes and heart attack.
Researchers found that work addiction risk is strongly associated with high job demands, but not job control. This can lead to depression, sleep disorders, and stress. Women are also more likely to experience work addiction risk than men.
The discovery uses a deep residual neural net trained on real data to uncover warped and stretched images of distant galaxies. The new lenses provide astronomers with targets to measure fundamental properties of the Universe, including the Hubble constant.
A pilot study at Massachusetts General Hospital found that inpatient mammograms can be effective in increasing breast cancer screening rates among low-income women. The study identified 21 women who were eligible for an inpatient mammogram and successfully completed the test, with 35% having never had a mammogram before.
A new framework measures nitrogen loss across a wide variety of crops and food products, revealing significant differences between crops and livestock. The research highlights the importance of dietary change and economic incentives to reduce nitrogen loss and promote sustainable agriculture.
A new study found that 30 college campuses exceeded the threshold for high-risk counties, with over half experiencing spikes above 1,000 coronavirus cases per 100,000 people per week. Tight outbreak management and online learning can reduce peaks within two weeks.
Scientists are using brain recordings, flight analyses, and computational modeling to uncover the neural mechanisms behind insect decision-making. The study aims to inform autonomous robotics, computational neuroscience, and other fields by understanding how insects utilize movement to simplify information sampling.
A study has identified the Ocean 100, a group of 100 transnational corporations extracting majority of revenues from economic use of world's ocean. The largest companies in industries like offshore oil and gas, shipping, and cruise tourism dominate the market, taking an estimated 60% of all revenues.
Researchers demonstrate that Raman spectroscopy can distinguish between healthy tissue, OSCC, and non-cancerous lesions with high accuracy. The technique could enable non-invasive cancer screening in the dentist's chair, reducing diagnostic delays and invasive procedures.
The American Chemical Society outlines key business and policy issues in chemistry for 2021, with a focus on climate goals and the impact of open access publishing. The organization also notes that chemical firms are looking to bounce back from the COVID-19 pandemic and manufacturers will remain busy producing COVID-19 vaccines.
Researchers at the University of Innsbruck have successfully entangled two quantum bits coded on a lattice, a crucial resource for quantum computers. This achievement demonstrates key technology for future fault-tolerant quantum computers using lattice surgery.
A study published in Neurology found that individuals with primary progressive aphasia, often associated with Alzheimer's disease, may not develop memory problems. Instead, their language skills decline significantly over time.
Researchers have discovered an antibody, 2B7, that physically blocks the Non-Structural Protein 1 (NS1) protein, preventing the dengue virus from attaching to cells and slowing its spread. This breakthrough could lead to new treatments for other flaviviruses like Zika and West Nile.
A new study finds that Earth's temperature tipping point for carbon uptake is already being exceeded in nature, with potential catastrophic consequences. If emissions continue unchecked, up to half the terrestrial biosphere may experience temperatures beyond this productivity threshold by mid-century.
A new study from the University of Notre Dame finds that people tend to overestimate their financial responsibility, resulting in under-saving. The research developed an intervention to combat this 'positive illusion' by recognizing excessive spending and boosting self-perceptions of financial responsibility through increased savings.
Researchers used innovative methods to calculate limits of atomic nuclei up to medium-mass nuclei, revealing new isotopes and a roadmap for verification. The study provides insights into the structure of neutron-rich nuclei and their existence, shedding light on fundamental interactions.
Research suggests that only a small fraction of violent acts are attributable to mental illness, with most perpetrators not having a diagnosable mental illness. The special issue articles review treatments to prevent violence, violence against family members, risk assessment, mass shooting events, and gun violence prevention.
Children under 3 years old presenting with rib fractures are 77% likely to be abused; those under 18 months with humeral fractures show similar results. Diagnostic evaluation for abuse is recommended in these cases to minimize morbidity and mortality.
After Oregon expanded Medicaid in 2014, more women accessed abortion services due to reduced out-of-pocket costs. The number of abortions didn't rise, but the financial burden on low-income women decreased.
A new study published in the Journal of Marketing argues that a biological account of human behavior can benefit human welfare. The researchers found that many undesirable consumer behaviors are biologically rooted in the brain and genes, and that acceptance of biology as a causal explanation varies depending on factors such as portray...
Astronomers have detected a signature of magnetar outbursts in nearby galaxies, allowing for more precise localization and study of these extreme stars. The discovery provides new insights into the behavior of magnetars, which are thought to be the source of some types of short gamma-ray bursts.
A new study reports the highest ocean temperatures since 1955, with the upper 2,000 meters absorbing 20 more Zettajoules than in 2019. The researchers warn of severe consequences for ocean ecosystems and human societies, including increased extreme weather events and wildfires.
A low-carb diet may lead to higher rates of type 2 diabetes remission in the short term, with benefits diminishing at 12 months. The study found that low-carb diets increased weight loss and reduced medication use, but also showed worsening quality of life and cholesterol levels at longer term.
A recent study published in the Chinese Medical Journal found a high proportion of recent HIV infections among Chinese MSM college students, particularly those under 25 years old. The study suggests that regular HIV testing and TDR testing are crucial to prevent the spread of the disease. The findings highlight the need for early educa...
Researchers at Ohio State University Wexner Medical Center and College of Medicine found no link between high doses of saccharin and the development of diabetes in healthy adults. The study isolated saccharin's effects on gut microbiome and metabolic profiles, showing no change in participants.
A new study found that 1 in 256 women experienced accidental awareness during pregnancy-related surgery, with 12 reports of awareness identified. The research suggests a higher incidence of awareness in pregnant women compared to the general surgical population.
A new study identified a molecule that reduces inflammation during mechanical ventilation, but isn't enough to prevent lung damage. Delivering high levels of the molecule with nanoparticles was effective in fending off ventilator-related lung damage in mice.
A NYU Abu Dhabi study found that abnormal sleep architecture can predict stress vulnerability in mice. The research used an animal model to demonstrate how disrupted NREM sleep results in increased susceptibility to future stress.
The Endangered Wooden Architecture Programme aims to document and preserve endangered wooden building traditions, with a focus on sustainability and cultural heritage. Researchers will create open-access digital repositories, develop research capacity, and raise awareness of wooden architecture.
A new nanoparticle vaccine platform has been developed to protect against many strains of coronaviruses, including SARS-CoV-2. The vaccine, called a mosaic nanoparticle, presents the immune system with multiple different coronavirus variants at once, generating a diverse antibody response.
Researchers found fewer aeromedical retrievals during the COVID-19 lockdown in 2020, but those who were evacuated had a higher proportion of vulnerable infants and adults with heart conditions. Post-lockdown, evacuations increased significantly as oncologists resumed cancer treatments after restrictions lifted.
A study from McGill University found that mothers with multiple children experience more fragmented sleep patterns compared to mothers of a single child. However, fathers with multiple children do not exhibit significant differences in sleep quality.
Researchers predict SARS-CoV-2 will become a mild childhood disease, with older individuals providing immune protection against severe illness. The model suggests that widespread vaccination may not be necessary if primary infections are mild in children, but should continue if they become severe.
A research team at Florida Atlantic University has developed a simplified COVID-19 testing protocol that detects minimal quantities of SARS-CoV-2 using saliva samples. The protocol requires minimal molecular biology equipment and expertise, making it easily adaptable to high-throughput platforms.
Research suggests that physical and social pain share common processing in the brain, increasing the risk of addiction with long-term opioid therapy. The authors advocate for integrating physical and social pain care models to provide more effective treatment.
Researchers found that certain metabolites can predict which patients are most likely to relapse into major depressive disorder. The study identified six metabolic pathways and specific lipids associated with the condition, suggesting a new approach for predicting vulnerability to depression recurrence.
A new study from Arizona State University finds that conflict between divorced parents increases the risk of children developing physical and mental health problems. Children who experience fear of being abandoned due to parental conflict are more likely to develop future mental health problems.