Researchers developed a statistical model to explain sudden changes and stasis in species history, finding they can be attributed to natural variability. The study supports Darwin's theory of gradual evolution by demonstrating that even abrupt changes are underpinned by directional selection.
Researchers at North Carolina State University identified a vulnerability in homomorphic encryption that allows data to be stolen during the encryption process. This discovery highlights the need for protection against side-channel attacks, which can compromise even next-generation encryption technologies.
A single-center study found that trauma patients were less likely to be vaccinated against COVID-19, even as vaccines became more widely available. The study suggests that trauma centers can play a crucial role in introducing the vaccination conversation with high-risk patients.
A new study found a strong association between school closures and declines in non-residential trips during COVID-19, leading to reduced risk of dengue transmission. Reduced time spent in public areas was closely associated with reduced dengue risk in countries where COVID-19 restriction measures began at the peak of dengue season.
Researchers analyzed mollusk shells at 4,000-year-old shell ring villages in Georgia and found environmental changes drove the formation and abandonment of these coastal communities. Smaller oyster shells and lower salinity conditions suggested depletion in oyster stocks and unsustainable fishing practices.
A UK-based research project, funded by EPSRC, is developing miniature acoustic resonator systems using metamaterials. The goal is to create wearable personal audio and medical devices that are affordable and can operate at audio frequencies.
The American Thoracic Society and European Respiratory Society have updated their technical standard for pulmonary function tests to address interpretation uncertainty and health inequity concerns. The new guidelines emphasize the importance of considering an individual's medical history, symptoms, and social circumstances when applyin...
A new Michigan Medicine study suggests that genes from oceanic bacteria have entered the human gut microbiome, enabling digestion of seaweed polysaccharides. The research found that these genes are more common than previously recognized and are linked to the ability to process certain seaweed-derived sugars.
A new chemoenzymatic cascade reaction has been proposed for sustainable and cost-effective membrane cleaning. The reaction, which combines glucose oxidase and Fe3O4 catalysis, shows improved degradation efficiency compared to traditional Fenton reactions.
A new study published in The Lancet found that the COVID-19 pandemic has exacerbated existing social and economic disparities between men and women. Women reported higher rates of employment loss, school dropouts, and perception of gender-based violence compared to men.
Scientists have created a 'greener' way to clean wastewater treatment filters by using glucose-based nanoparticles, which effectively remove contaminants without destroying the membrane. The new system is more cost-effective and environmentally friendly than traditional methods.
Research from the University of Colorado Boulder found that people exposed to more green space reported less depression and anxiety during the COVID-19 pandemic. The study also found that spending time in green spaces had a protective effect on mental health, even in times of extraordinary stressors.
Researchers found that the ability to detect a parasite and launch an immune response quickly is key to resisting parasites, with implications for understanding human conditions with scar tissue. The study's findings could lead to new treatments and faster recovery times for humans with diseases like cystic fibrosis and liver fibrosis.
Researchers at Johns Hopkins Medicine discovered 110 genes, circular RNAs, lipids and metabolites that differ between medulloblastoma patients' cerebrospinal fluid and healthy controls. These findings provide proof of principle for novel biomarkers to detect and track the disease.
Researchers explore the influence of forebody and afterbody shapes on Mars ascent vehicle aerodynamic performance. Studies reveal that conical forebodies can reduce drag in slender ascent vehicles, while exponential forebodies improve resistance performance in short blunt bodies.
A new study of Danish tweets about facemasks during the Covid-19 pandemic reveals that only a small percentage attempt to correct misinformation, instead focusing on ridicule and satire. The researchers conclude that people's primary goal is often to defend their social position among like-minded individuals.
The collaboration aims to prepare professionals to support school-aged students with autism spectrum disorder and related disabilities. Full scholarships will be awarded to 24 graduate students starting in Fall 2022.
A new study by Johns Hopkins University finds that only 6% of the $13 trillion pandemic stimulus spending went towards projects that would reduce greenhouse gases, while a majority did not address climate at all. Countries like South Korea and the European Union invested more than 30% of their packages in green projects.
A new study analyzes sediment cores from the North Sea, showing a significant accumulation of pollutants since the industrial revolution. The researchers found that the deposition of pollutants is linked to fine sediments transported by currents, causing a strong accumulation on the seabed.
Researchers at HKUST and UChicago have designed the basic elements needed for logic operations using liquid crystals, paving the way for novel computing methods. The team controlled topological defects to perform operations like amplification and switching, opening the door to potential applications in robotics and sensing.
Researchers identify three types of mechanisms underlying evolvability, including determinants providing variation, shaping the effect of variation on fitness, and shaping the selection process. Evolvability also depends on the timescale, with asexually reproducing organisms evolving faster but reaching lower adaptation levels, while s...
A recent pilot program measuring the results of online tutoring for K-12 students has shown positive and promising results. The study found that students who received more hours of online tutoring experienced better results, closing about a quarter to a third of their learning loss during COVID.
Prehistoric plant remains found in a Lake Varese settlement match crops from oldest Swiss pile dwellings. The discovery suggests settlers from the western Mediterranean may have played a key role in spreading pile-dwelling culture north of the Alps.
Two studies on hurricane and wildfire survivors found that negative personal experiences drive adaptation behaviors, while considering vulnerabilities is crucial for effective communication and policy. These findings inform public communications and policy to empower vulnerable communities.
Researchers from Osaka University report a new technique for tracking the synthesis of core–shell bimetallic nanoparticles in real time, allowing for fine-tuning of nanomaterial preparation. The technique uses a piezoelectric resonator to monitor particle shape changes and track interdiffusion of metals.
Research reveals SARS-CoV-2 can have multiple variants in one person, with some hiding in specific cells like kidneys or spleens. This can make complete virus clearance more difficult, as the body struggles to defend against dominant strains.
The tomato domestication process began with Mesoamerican plants, which later migrated southward to the Ceja de Montaña region in Peru and Ecuador. These ancient crops then went back north to Mexico, introducing new genetic variations along the way.
Researchers developed a new technique called dual-detection impulsive vibrational spectroscopy (DIVS) to measure two distinct types of vibrational signals. DIVS enables synchronous measurement of THz- and fingerprint region vibrations, offering high temporal resolution for real-time chemical analysis.
Chronic liver injury triggers bone loss through the liver-bone axis, characterized by an imbalance of PP2Ac® and LCAT. This study reveals the molecular mechanisms behind HOD disease progression.
A four-year cohort study found children who survived invasive mechanical ventilation had significantly lower subsequent IQ scores than matched siblings. Researchers also identified the existence and epidemiology of pediatric post-intensive care syndrome after acute respiratory failure.
Recent studies found that intestinal cells can change specializations in response to BMP signaling. This process, called zonation, is crucial for the proper functioning of the gut. Researchers used organoids and mouse models to confirm this discovery, which may lead to new treatments for metabolic diseases.
A novel 'double lock' system uses thermoresponsive polymer hydrogels to encrypt information, readable only at specific temperature and time windows. The system combines physical methods for decoding, increasing security while maintaining simplicity.
A team led by City University of Hong Kong researcher Dr Zhang Qingpeng found that donating 46% to 80% of COVID-19 vaccines to low- and middle-income countries can significantly reduce infection rates and mortality. The study suggests prioritizing vaccines for countries with high incidence, prevalence, and mortality rates.
A study published in Cell Reports reveals that the APOE4 variant increases the risk of Alzheimer's disease by triggering the secretion of potentially toxic lipids in astrocytes. This secretion can lead to the accumulation of harmful lipids, which may contribute to neuronal death and disease progression.
A study suggests that targeting necroptosis in muscle fibers using an inhibitor can lessen myositis-induced muscle weakness and cell death, promoting muscle regeneration. This approach shows promise for treating polymyositis with potentially fewer infectious complications than current immunosuppressive therapies.
Research by Oregon State University scientists has found that tiny tire particles inhibit growth and cause adverse behavioral changes in organisms in freshwater and coastal estuary ecosystems. The findings suggest that even at current environmental levels of tire-related pollution, aquatic ecosystems may be experiencing negative impacts.
A recent analysis of the 2017 GW170817 merger suggests that a rapid spin delay may have prolonged the merger, producing excess X-ray emissions. The radiation is thought to be produced by shocked material in the circumbinary medium, hinting at a bounce from the delayed collapse.
A nationwide survey of COVID-19 guidance for emergency medical services (EMS) reveals that nearly half of states lack online access to protocols, leaving frontline workers vulnerable. The study highlights the need for standardized guidance and improved resource allocation to mitigate the impact of future pandemics.
A new study found that a higher minimum wage was associated with fewer people defaulting on their rent payments, particularly among those at the lower end of the housing expense market. However, landlords responded by increasing rent payments, offsetting some but not all of the increased income.
Researchers have discovered signature epigenetic biomarkers in mothers and fathers of preterm infants, which may lead to a non-invasive test to predict preterm birth. This could help prevent premature births and their related health impacts on infants.
A study on wild baboons reveals that they prioritize socializing and safety over sleep, even after poor sleep quality. The research used non-invasive technology to monitor sleep patterns across a group of individuals, showing that animals in the wild face competing demands that disrupt sleep homeostasis.
A recent study has identified a family of proteins involved in yeast infections, which pose risks to both humans and crops. The research found that variations in these proteins can disrupt the signalling function that leads to filamentation, impeding its progress.
A team led by Osamu Takahashi developed a procedure to reproduce the double peak feature of x-ray emission spectroscopy spectra in liquid water. They used molecular dynamics calculations and first principles quantum mechanical calculations to estimate XES spectra, reproducing features such as the double peaks.
A recent data-driven study by Emory University researchers highlights the struggles of US farmers to make a living, even with government subsidies. The study creates a free online data hub to track farmer livelihoods and suggests that federal subsidies need to be reimagined to support innovation and adaptation in agriculture.
Scientists have discovered the signature of genes expressed by hematopoietic stem cells that can produce healthy blood cells after being transplanted. This finding could enable scientists to expand these cells outside the body or convert other types of stem cells into functional blood cells.
A study published in PLOS Medicine found that individuals in England reduced their social contacts by up to 75% during the most restrictive lockdown periods of the COVID-19 pandemic. This reduction in contact was maintained throughout the year, with people only reaching 50% of pre-pandemic levels during less stringent policies.
Dr. Jamie Clark will lead research on climate change and its effects on human behavior during the Last Glacial Period, using high-resolution paleoclimate and zooarchaeological data. This study aims to provide insight into human-environmental interactions during a key period in human evolution.
Researchers investigated the association between acute respiratory failure in early childhood and long-term neurocognitive outcomes. The study found that children who experienced severe respiratory distress were more likely to have impaired cognitive function and behavioral problems later in life.
A new study reveals that parents of young children who live near areas with high densities of bars and restaurants are more likely to drink and consume more alcohol. The researchers found that parents choose where they spend their time based on opportunities to engage in other activities, including drinking.
A new method using a thin oxide film has revealed that oxygen impurities in germanium are responsible for a surprising effect, creating holes in the material and eclipsing its semiconducting properties. This discovery has broad implications for understanding the role of thin oxide films in future semiconductor design.
A study published in Cell Metabolism shows that nicotinamide riboside supplementation significantly increases NAD levels in the human brain and improves Parkinson's disease symptoms, suggesting a potential new treatment approach.
New analysis suggests Stonehenge was designed as a solar calendar with 10-day weeks and extra months to match the solar year. The site's alignment with solstices helped calibrate the calendar, making it easier to detect errors.
Scientists have developed a new spectroscopy technique to directly measure the binding energy of biexcitons in WS2, providing insights into their dynamics and characteristic energy scales. The findings inform the development of novel devices such as compact lasers and chemical sensors.
Researchers used lab-based mimicry to reveal a new crystal structure that has major implications for our understanding of the interiors of large, rocky exoplanets. This discovery could have revolutionary implications for how we think about the dynamics of exoplanet interiors.
A study found that using a one-size-fits-all approach to blood pressure cuffs can lead to inaccuracies in measurements and diagnosis. Using an appropriately sized cuff reduced the risk of misclassification, with smaller cuffs underestimating blood pressure readings and larger cuffs overestimating them.
Researchers found that some painkillers and fever medications may help fight infection, while others can weaken the immune system. The review highlights the need for more studies on the impact of these medicines on infectious diseases.
Researchers at Martin Luther University Halle-Wittenberg have developed a new process for producing liquid crystals that is more efficient and environmentally friendly. The approach uses multi-component reactions to simplify the production process, eliminating the need for harsh solvents and reducing energy consumption.
Researchers found that two-dose mRNA vaccines against the original and early variants of the SARS-CoV-2 virus offer little to no protection against the omicron variant. A third COVID-19 mRNA vaccine booster shot, however, enhances immune response and provides comparable protection to the delta variant.
Glenn Stone's analysis reveals how precision agriculture tools, such as detailed soil mapping and autonomous vehicles, can erode peasants' ability to self-manage their communities. Small farmers may face a paradigm shift in lifestyle and subsistence, with increased dependencies on external commercial services.
Postpartum mothers experience unwanted and intrusive thoughts about harming their babies, which are not associated with an increased risk of actual harm. Research suggests these thoughts may lead to the development of obsessive-compulsive disorder (OCD) in vulnerable women.