A 30-year study reveals that coral bleaching is not just caused by climate change, but also by reactive nitrogen from human activities. Nitrogen levels from sewage and fertilizers are causing phosphorus starvation in corals, leading to reduced temperature thresholds for 'bleaching'.
A study reconstructs a severe megadrought interval in Australia between 1891 and 1903, revealing widespread ecosystem impacts. The findings suggest that record rainfall deficiencies can lead to mass mortality and ecosystem collapse, with over 60 genera experiencing severe stress.
A study found that HIV cells can be detected in the cerebrospinal fluid of half of participants with nearly a decade of strict treatment, associated with higher likelihood of cognitive deficits. The presence of these cells may indicate an important reservoir for the virus in the brain that cannot be overlooked.
Researchers used online restaurant data to predict key socioeconomic attributes of neighborhoods in China, including daytime and nighttime population, business numbers, and consumer spending. The method shows promise for urban planners and policymakers seeking alternative data sources.
Rice University physicists have shown single crystals of cerium zirconium pyrochlore possess the right characteristics to qualify as the first possible 3D quantum spin liquid. The material exhibits long-range magnetic order and entanglement, which are hallmarks of a quantum spin liquid.
A single-center study of 453 children with multiple sclerosis found a significant association between obesity and increased risk of pediatric MS. The study also explored the response of first-line therapy in obese children with MS, but no conclusive findings were reported.
A meta-analysis of 61 neuroimaging studies involving 1,850 participants found no correlation between biological sex and brain responses to visual sexual stimuli. The findings contradict previous assumptions about sex-dependent differences in men's and women's reactions to visual erotic stimuli.
Researchers created a mathematical model to calculate temperature suitability for citrus greening transmission, mapping areas at risk of production collapse. The study provides critical information for crop management and surveillance prevention.
A new study predicts that up to a quarter of the world's conifer species will face extinction by 2070 due to climate change. Species native to smaller islands are most at risk, with some expected to be pushed out of their fundamental niche and tolerance range.
A new species of primitive hadrosaurid, Aquilarhinus palimentus, has been identified from a complete skull found in Big Bend National Park, Texas. The discovery sheds light on the evolution of duck-billed dinosaur snouts and suggests that there may have been multiple lineages before the main radiation of hadrosaurids.
NIST's quantum logic clock has reclaimed its title as the world's most precise atomic clock, with a systematic uncertainty of 9.4×10^-19, outperforming both NIST's ytterbium and strontium lattice clocks. However, it lags behind in stability, measuring 1.2×10^15 for a 1-second measurement.
Johns Hopkins researchers found that laser treatments and retinoic acid share a common molecular pathway that senses loose RNA molecules. This pathway is also involved in mice regenerating hair follicles after a wound.
A new study by researchers from the University of California, Irvine has shed light on the weaknesses of TcdB, a toxin primarily responsible for devastating Clostridium difficile infection (CDI). The study provides a blueprint for the development of next-generation vaccines and therapeutics with enhanced potency and broad-reactivity.
Oregon State University researchers developed a new model to calculate snowpack water content, utilizing snow depth data and climate normals. The model performed better than existing ones against validation datasets, providing a valuable tool for vast areas lacking weather instrumentation.
A large retrospective study found that statins are significantly underutilized in patients with and at risk for atherosclerotic cardiovascular disease. Despite known benefits, only two-thirds of these patients were receiving moderate/high-intensity statins.
Researchers discovered 2D perovskite materials with metal-like conductive edges and insulating cores, improving optoelectronic performance. The findings boost the potential of these materials for innovative solar cells and nanoelectronics.
NASA analyzed cloud top temperatures in Tropical Storm Barry, indicating the storm's strength. The Aqua satellite found coldest cloud tops with temperatures near minus 80 degrees Fahrenheit, indicative of strong storms capable of generating heavy rainfall.
NASA's ARIA team created a flood proxy map using satellite data from the ALOS-2 satellite, depicting areas of Louisiana likely flooded due to heavy rain and Tropical storm Barry. The map can be used as guidance to identify potentially flooded areas, but its reliability is limited over urban and vegetated regions.
A new study by University of Arkansas researcher Linyin Cheng found that a warming climate amplifies the intensity and likelihood of heatwaves during severe droughts in the southern plains and southwest US. In regions with low soil moisture, higher temperatures create a 'feedback loop' that links the land and air, worsening droughts.
A team of Chinese and Canadian scientists developed a theoretical model to predict properties of hydrogen nanobubbles in metal using computer simulations. The model reveals simple rules for hydrogen trapping behavior in nanovoids, providing a powerful tool for evaluating hydrogen-induced damage in fusion reactors.
Researchers at Karlsruhe Institute of Technology (KIT) have created a platform that combines chemical synthesis with biological high-throughput screening on a single chip, called chemBIOS. This allows for the simultaneous performance of 75 parallel reactions, reducing costs and increasing efficiency.
The City College of New York research team, led by Professor Robert R. Alfano, has identified a new class of photons dubbed 'Majorana photons.' These unique photons have distinct properties that enable deeper penetration into brain tissues and microtubules, providing fundamental information about the brain's structure and function.
Researchers found that small-scale farming is destroying tropical forest wilderness in northeastern Peru, posing significant threats to biodiversity. The study highlights the need for careful management of remote areas and potential opportunities to link conservation with rural development efforts.
A recent study published in Nutrients found that an inflammatory diet increases the risk of colorectal cancer by almost twice. The researchers suggest adopting a Mediterranean diet rich in fruits, vegetables, nuts, whole grains, and healthy oils to reduce the risk of colon cancer.
A legal framework is needed to address human-induced land use change and its impact on disease risk. Patricia Farnese proposes adaptive models and guidelines for land-use planning that consider the intersection of human activities and natural landscapes.
Researchers at University of Pittsburgh receive funding to develop cost-effective method for evaluating hot gas path turbine components created by laser powder bed fusion additive manufacturing technology. The team aims to enhance confidence in adopting the process to fabricate demanding components.
Researchers found that drivers who switch insurance companies bring higher risk than 'equivalent own' customers, with a 21% higher cost to serve. Higher-risk drivers tend to be with an insurer for less than two years and generate more claims.
Australopithecus africanus mothers breastfed their infants continuously from birth to about one year of age. The research team analyzed over two-million-year-old teeth and found that nursing appears to continue in a cyclical pattern, with the mother supplementing gathered foods with breastmilk during seasonal changes and food shortages.
St. Jude Children's Research Hospital scientists have determined the structure of the minichromosome maintenance complex, a ring-shaped enzyme that plays a central role in DNA replication. The research proposes a rotary mechanism to initiate DNA replication and may help solve one of biology's greatest mysteries.
A new archaeological discovery was made at the L'Anse aux Meadows site in Newfoundland, revealing a previously unknown cultural horizon dating back to between the late 12th and 13th centuries. The layer contained trampled surfaces, charcoal, and wood working debris without any culturally diagnostic artifacts.
Researchers analyzed fossilized teeth from an extinct human species and found evidence of barium accumulation suggesting breast feeding up to a year, helping overcome seasonal food shortages. This finding may inform strategies to improve modern breast-feeding practices.
A global genome-wide association study identified eight genetic variants linked to anorexia nervosa, revealing a complex interplay between metabolic and psychiatric factors. The research suggests that integrating metabolic information may help clinicians develop better treatment approaches for this potentially lethal illness.
Research from Duke Health suggests that new e-cigarette laws could have unintended consequences on existing users, leading them to smoke more traditional tobacco cigarettes. The study found that limiting flavors or customizability of e-cigarettes might cause some users to increase their use of traditional cigarettes.
A study found grasshoppers and silkworms have antioxidant capacity similar to fresh orange juice, while crickets offer 75% the same antioxidant power. Insects are a sustainable alternative to meat and animal products, with minimal land, water, and carbon footprint.
Researchers discovered a tiny monkey species, Nanopithecus browni, 4.2 million years ago in Kenya's Kanapoi site, challenging previous assumptions about guenon evolution. The fossil, found near grasslands and open forests, provides insights into the complex history of Old World monkeys.
Researchers develop single-cell encapsulation technology to protect transplanted stem cells from clearance and immune attack, improving bone marrow transplant success rates in mice. The new microgels allow MSCs to persist in the body longer and resist immune rejection.
A new study found that living a healthy lifestyle can significantly reduce the risk of dementia for individuals with a high genetic risk. The research, published in JAMA, analyzed data from over 196,000 adults and discovered that adhering to a healthy lifestyle, regardless of genetic risk, was associated with a reduced risk of dementia.
A Baylor University researcher has made a significant discovery about the dynamic process of DNA damage recognition, providing new insights into the molecular repair machinery. The study found that the protein Rad4/XPC binds to UV-induced DNA lesions, marking them for repair and initiating the nucleotide excision repair pathway.
Infanticide by female mammals removes potential competitors for breeding space, milk, and social status. Researchers found that harsh conditions and territorial needs drive this behavior in various mammalian species.
A large observational study found that a favorable lifestyle was associated with lower dementia risk, independent of genetic risk. The study followed over 196,000 adults and found that both unhealthy lifestyles and high genetic risk were linked to higher dementia risk.
A study by researchers at New York University Langone Health found that mandatory headgear use in women's lacrosse significantly reduces the rate of head and face injuries as well as concussions. The study showed a 76% lower injury rate compared to non-headgear wearing teams.
A research team led by Prof. Rho developed a simultaneous inverse design of metamaterials using deep learning, allowing for arbitrary photonic structure designs and significant reduction in design time.
A study of 1,600 older adults found a strong association between accumulated cognitive and social activities and a slower rate of memory loss. The research suggests that individuals with higher cognitive reserve may be less likely to develop dementia, providing new insights into the prevention and treatment of this disease.
Researchers found that young athletes who fail to achieve a 90 percent score on quadricep strength tests are at increased risk for second knee injuries. Those who failed individual return-to-sport criteria were three times more likely to suffer contralateral ACL tears.
Professional baseball players with low-grade elbow injuries on the humeral side have a higher chance of returning to play and lower risk of ulnar collateral ligament surgery. Lower MRI grade and humeral location are associated with better outcomes.
Non-traumatic fatalities in football are often linked to over-exertion during conditioning sessions, which can be prevented with standardized workout design and accountability. The NCAA's acclimatization model has been ineffective in reducing exertional heat-related fatalities.
Researchers developed electrocardiomatrix technology that outperforms standard cardiac telemetry in detecting atrial fibrillation after a stroke. The technology converts ECG signals into a three-dimensional heatmap for rapid inspection of all collected heartbeats, minimizing false positives and negatives.
A new study from The Dartmouth Institute for Health Policy and Clinical Practice found that care management and coordination activities in Medicare Accountable Care Organizations (ACOs) were not associated with improved outcomes or lower spending for patients with complex medical and social needs. Researchers analyzed data from over 1....
Scientists have developed a novel nanoparticle formulation targeting PD-L1 with high specificity, allowing for improved infiltration of T cells into tumors and increased sensitivity to checkpoint blockade. This approach achieved an 80% mouse survival rate over 70 days, outperforming traditional antibody therapies.
A UTSA researcher examines how individuals use social media to engage with their cultures, finding that technology enables people to construct a 'third land' and enact ethnic identities. The study highlights the importance of online participation in shaping identity formation and sense of belonging among immigrant populations.
Researchers at Penn State College of Medicine have identified a potential therapeutic target for high-grade serous ovarian cancer cells by preventing a protein from doing its job. Inhibiting this protein led to a halt in cell division and may be an effective strategy for future therapies.
The University of Tennessee has been awarded a grant to develop a more sustainable way to manage Nashville's organic wastes. The project aims to reduce methane emissions and create jobs in the local community by using anaerobic digestion technology.
Researchers found that C. difficile spores resist treatment with recommended disinfectant and can persist on hospital gowns and stainless steel surfaces. The study highlights the need to reevaluate infection control strategies in hospitals.
A new study reveals that school suspensions are not only ineffective but also increase subsequent offending behaviors, including assault, stealing, and selling drugs. The research found that exclusionary discipline amplifies deviant behavior among youth, leading to higher crime rates in schools, neighborhoods, and communities.
A new study from the University at Buffalo found a significant association between long-term exposure to air pollution and the severity of coronary artery calcium, or plaque buildup in artery walls. The study suggests that China may need to revise its standard for nitrogen dioxide limits to reduce the risk of cardiovascular disease.
Auroraceratops rugosus is an early horned dinosaur with a complete skeleton, providing insight into bipedalism in ceratopsians. The fossil, from over 80 individuals, shows a small body size and lacks 'true' horns compared to Triceratops.
A new study from the University of Pennsylvania School of Nursing highlights the challenges faced by nurses in caring for hospitalized patients with social risk factors. The research suggests that prioritization of medical needs and lack of organizational supports can deter nurses from addressing social concerns, leading to unmet needs...
A recent study by University of Alberta scientists found that both humans and black-capped chickadees can detect high-arousal vocalizations from other species. This ability suggests an innate capacity for understanding emotional states through sound, shared among vocal learners like humans and songbirds.
Computing scientists at the University of Alberta developed a methodology combining machine-learning algorithms to recognize depression using acoustic cues. The technology could lead to apps tracking mood indicators and providing support for individuals.
Researchers at the Institut Pasteur successfully reprogrammed immune cells from individuals who naturally control HIV infection, granting them enhanced antiviral potency. This breakthrough could lead to novel treatments and potential cure options for those living with HIV, as previously described in a study published in Nature Metabolism.