Male dragonflies have evolved larger melanin wing patches in cooler climates to cope with warmer temperatures. Climate change may lead to even smaller patches in the future, according to research published in PNAS.
A prospective cohort study found that treatment at an infusion center is associated with substantially better outcomes than treatment in the emergency department for patients with sickle cell disease. Patients treated in ICs received parenteral pain medication faster and were more likely to have their pain reassessed within 30 minutes.
A new online calculator, RESPECT, uses big data to predict death within 6 months in older adults, prioritizing quality of remaining life over curative care. The tool was developed based on data from over 491,000 community-dwelling older adults and aims to support families and healthcare professionals in planning end-of-life care.
A new study estimates that Wisconsin's wolf population declined between 27-33% between April 2020 and April 2021, with a majority of additional deaths attributed to cryptic poaching. The researchers estimate the current wolf population is between 695-751, which may represent the maximum due to optimistic assumptions about growth.
Researchers have developed 3D-printed tissue scaffolds that degrade harmlessly while promoting tissue regeneration. The scaffolds showed excellent biocompatibility and the ability to support cell migration, ingrowth of tissues, and revascularisation.
A team of researchers has developed an AI system that can detect COVID-19 through automatic cough analysis. The system uses spectrogram features and demonstrates improved accuracy when incorporating gender information, which is found to be a significant factor in distinguishing between male and female coughs.
Researchers at UCL and the London School of Hygiene & Tropical Medicine argue that modern society's emphasis on cleanliness does not impede childhood immunity. Instead, they suggest exposing children to beneficial microorganisms through maternal contact, family members, and natural environments is crucial for immune system development.
The neocortex's layered structure is critical for healthy brain function. A team from Charité - Universitätsmedizin Berlin identified two key processes that direct this organization, involving the regulatory protein Zeb2.
A team of researchers from Tokyo University of Agriculture and Technology has developed a new approach to identifying and tagging specific proteins. They used multivalent gold nanoparticles as a scaffold to attach carbohydrate ligands and electrophiles, which allowed them to highly efficiently and selectively label carbohydrate-binding...
Academician GUO Guangcan's team demonstrates measurement-dependent property of quantum memory effects, proving non-Markovianity in multi-step evolution. This study has implications for approximating quantum processes with memory.
A study by ITQB NOVA researchers found that asymptomatic adults in Portugal can carry pneumococci for several months, with a median duration of almost two months. This suggests that some adults may act as reservoirs of the bacterium, potentially impacting herd immunity.
A new face identification ability test, GFMT2, has been developed to identify high-performing facial recognition individuals known as super-recognisers. This test will help prevent false identity matches made by facial recognition software and improve recruitment for roles such as visa processors and passport issuers.
Researchers used seismic sensors to study subglacial water flow on the Argentière glacier. The study revealed a complex drainage system with multiple cavities producing high water pressure, accelerating glacier movement.
A new study published in Environmental Research found that various dolphin species can coexist without competing for food, even though they hunt at the same depth. The researchers used stable nitrogen isotopes to determine the trophic level of each species, revealing surprising differences in their diets.
A research team found an unusual competition between charge density wave (CDW) and superconductivity in CsV3Sb5. They discovered that increasing pressure can suppress the CDW state, leading to an abnormal superconducting phase diagram with a double dome shape.
A seabird colony on Ascension Island creates a 'halo' of depleted fish stocks, with reduced flying fish numbers detected up to 90 miles from the island. The study provides rare evidence for Ashmole's halo, a pattern of prey depletion first proposed 60 years ago.
Researchers discovered how flies choose their food based on neural activity and hunger levels, with findings that may apply to human food choices too. Hungry fruit flies prefer sweet, nutritious food over lower-calorie options when hungry, but adapt their preferences when presented with novel foods.
A retrospective cohort study found that COVID-19 surges in hardest-hit US hospitals doubled mortality rates. Researchers also discovered that nearly a third of persons with mild to moderate COVID-19 experience lingering symptoms months after infection.
A study found that male dragonflies evolve less wing pigmentation in regions with hotter climates to regulate body temperature. This adaptation helps them survive but may also make it harder for them to attract mates.
Research at Kumamoto University found that LSD1 produces unique metabolic profiles depending on the type of acute myeloid leukemia cells. LSD1 inhibitors may be effective in treating erythroleukemia (EL) with high LSD1 expression levels, and could lead to personalized therapies for various leukemia types.
Researchers have elucidated the structure of VIPP1, a protein essential for thylakoid membrane assembly and stability. The study's findings will facilitate biotechnological efforts to enhance plant resistance to environmental stresses.
Smithsonian scientists discovered shark denticles on fossil- and modern coral reefs, revealing changing shark roles over 7000 years. Shark populations declined due to human hunting and habitat loss, impacting ecosystem balance.
A family planning program in Bangladesh from 1977 to 2012 showed significant differences in lifetime contraceptive behavior and fertility among women. Women who participated in the program experienced increased body mass index compared to non-participants, particularly those born between 1950 and 1961.
Julian West's lab receives a five-year, $1.8 million NIH grant to simplify the synthesis of organic chemicals, enabling new hydrogen atom transfer modules and 'mutase-like' catalysis. This will accelerate the development of new drugs and compounds with improved properties.
Researchers discovered that glioblastoma (GBM) causes epigenetic changes in CD4 T-cells, affecting their function and differentiation. The study found significant inter-patient variability in these changes, which could help select patients for immunotherapy.
A study analyzed fossil dermal denticles from ancient coral reefs and modern reefs to estimate Caribbean shark abundance before and after human settlement. The results show a significant decline in shark populations, with fast-swimming species facing the greatest losses.
Researchers developed amperometric biosensors to determine diclofenac levels in food, improving detection limits and accuracy. The study found that diclofenac inhibits tyrosinase enzyme activity, enabling its detection in milk and other dairy products.
A team of FAU researchers has developed an innovative process for producing asymmetrical hexaarylbenzene (HAB) molecules with six different aromatic rings. The four-step domino reaction allows for the efficient synthesis of large quantities of these complex molecules without toxic metals.
The MasSpec Pen technology has been shown to accurately identify healthy and cancerous tissue in pancreatic cancer surgeries, giving patients the greatest chance of survival. The device is over 100 times faster than current gold standard diagnostic methods.
A new study by University of Miami researchers documents how coral genes respond to stony coral tissue loss disease, a rapidly spreading disease killing corals in Florida and the Caribbean. The study found that a network of genes important for cell death, immunity, and tissue rearrangement are triggered in response to the disease.
Researchers at Uppsala University discovered lymph node-like structures in brain cancer patients where immune cells can be activated. Immunotherapy enhanced these structure formation in a mouse model, suggesting new ways to regulate the anti-tumour response.
A comprehensive genetic study led by the University of Bonn has identified 45 new regions in the human genome associated with an increased risk of cleft lip and palate. These regions are linked to variations in DNA sequences that regulate gene activity, disrupting normal facial development.
Researchers have identified the gene responsible for faba bean's production of vicine and convicine, two compounds that cause favism in susceptible individuals. The team has also found a specific mutation within this gene that reduces synthesis, leading to low vicine and convicine content in certain varieties.
Cells undergoing EMT promote tumor growth by acquiring an endothelial phenotype or contributing to vascular transdifferentiation. FOXC2 is crucial for these processes.
A prospective study analyzing plasma metabolomics during general anesthesia in patients with pancreatic malignancy reveals perioperative tryptophan depletion and increased taurine synthesis. This finding has implications for personalized perioperative management and may identify therapeutic windows for immunotherapy or chemotherapy.
The article emphasizes the importance of integrating different disciplines and stakeholders in conservation efforts. Key findings include the need for increased funding and expert guidance for transdisciplinary research, as well as the benefits of such approaches, including improved data quality and innovation.
Researchers found that the presence of beneficial bacteria in plant roots promotes growth under low light conditions, but reduces defense against leaf pathogens. The study suggests a complex interplay between plant growth and defense responses mediated by root microbiota.
Photonic researchers successfully demonstrated a temporal compression system that can squeeze light in time by 11 times, allowing more data to be transmitted in a given time duration. This technology also enables the spectral compression of light, which could facilitate higher spectral densities and faster optical communications networks.
Research found that unsustainable irrigation can increase global BECCS potential by 60-71%, but sustainably constrained irrigation only boosts it by 5-6%. The study suggests a reexamination of the role of BECCS in achieving climate goals due to its environmental impacts.
Research reveals that Asian houbara birds use internal temperature cues to fine-tune their migration departure times, adapting to annual temperature variability without genetic changes. Temperature cues are more consistently used than other environmental factors like daylight length or wind velocity.
Researchers from Oak Ridge National Laboratory used Stampede2 to refine the screening of potential drug molecules targeting COVID-19's spike protein. The method, developed by Stephan Irle and Van Quan Vuong, uses quantum mechanics-based ranking refinement and binding analysis to identify top candidates for further testing.
African countries can better interpret complex data with a new data-driven framework, tracking and predicting country-level case incidence. The framework considers factors like testing capacity, social policy, landlocked status, temperature, and humidity.
The study reveals a higher-than-expected black hole fraction, with some having masses up to 20 times that of the Sun. The researchers used simulations to understand how these massive black holes formed and influenced the cluster's evolution.
Researchers found a 51,000-year-old engraved bone in the Unicorn Cave, showing evidence of Neanderthal creative talent. The carved notches suggest that Neanderthals independently developed artistic skills before modern humans arrived in Europe.
A study suggests that the Toba supereruption led to regional variations in climate impacts, with cooling predictions ranging from 4°C to 10°C in the Northern Hemisphere. Early human populations in these regions thrived despite the eruption's severity, according to independent archaeological evidence.
The report argues for greater standardization of immersive technologies in healthcare training and education. It recommends developing a set of principles and guidelines for the use of immersive technology in medical treatment to make training more accessible and effective.
Researchers found ancient diamonds with gases similar to those in the modern mantle, indicating little change in atmospheric volatiles over the last 2.7 billion years. This suggests that essential volatile elements like carbon and nitrogen were present on Earth soon after its formation.
Researchers find constructed wetlands are most cost-effective way to reduce nitrate and sediment loads in large streams and rivers. Wetlands slow down water and contain vegetation that processes nutrients, removing excess nitrates from the water.
Researchers developed a new method to quantify proton kinetic properties of triple conducting oxides (TCOs), revealing two orders of magnitude higher proton tracer diffusion coefficient. This led to improved electrochemical performance for protonic ceramic fuel cells, with recorded values exceeding previous benchmarks.
Scientists used next-generation sequencing to study bumblebee health, finding evidence of pesticide exposure, including neonicotinoids, as well as pathogens. The technology allowed for quick detection of diseases and stressors, shedding light on the decline of bumblebee populations.
Researchers found that combining anti-rheumatic drugs can reduce the risk of cardiovascular disease in rheumatoid arthritis patients. Two specific combinations - tumour necrosis factor inhibitors and hydroxychloroquine - showed promise in preserving endothelial function.
Scientists have developed a new method to identify the movements of criminals by analyzing soil and dust found on equipment, clothing, and cars. This technique uses geochemical analysis to match soil remnants to regional samples, allowing police to pinpoint crime scenes. The method has been tested in a trial with promising results.
The Gulf Coast region is well-positioned to develop a carbon storage economy, thanks to its unique geology and high concentration of industry. The study highlights the region's potential for capturing and storing CO2, which can help reduce emissions in the near term.
A recent study by Yale researchers found that psilocybin increases the density of dendritic spines, aiding information transmission between neurons and potentially treating depression. Mice subjected to stress showed behavioral improvements after receiving psilocybin, suggesting a possible therapeutic effect.
Scientists reconstructed ancient shark communities using fossil shark scales, revealing a three-fold decline in abundance since prehistoric times. The study provides insight into what a 'healthy' shark community might look like on a coral reef before human exploitation.
An international team has discovered a persistent pattern formation dynamics in viscous fingering, a phenomenon relevant to oil recovery and spreading of groundwater. The study's findings show that the pattern is different from classical radial and rectilinear forms.
Researchers discovered that seabirds' reliance on flying fish as prey leads to reduced fish populations over 150 km from breeding colonies. This depletion effect is worsened by fisheries, posing a threat to seabirds' survival.
A new international study found that laboratory-developed protein spikes consistent with COVID-19 virus are highly similar, providing reassurance for vaccine design and antibody testing. The study used glycan coatings to mimic the infectious virus and showed consistent results across five laboratories worldwide.
A collaborative project between Simon Fraser University and local First Nations aims to conserve iconic western redcedar trees suitable for traditional carving and ceremonial purposes. Researchers found that these trees are generally rare, with nearly extinct forms being targeted by industrial logging.
Researchers have determined that a massive star, rather than the young sun, was responsible for the split in oxygen isotopes found in the sun and other planets. The study, led by Lionel Vacher, used an unusual meteorite named Acfer 094 to gain insight into the solar system's past.
Researchers at the University of Konstanz have identified genetic pathways controlling fin spine development, showing how spines arise during embryonic development and evolve independently in different fish lineages. This study provides insights into the evolution of fin spines, which offer a strong evolutionary advantage to fish.
Studies have shown that oxytocin neurons connecting the hypothalamus to a reward area fire when vole fathers care for their offspring, increasing paternal behavior. This neural pathway is also involved in maternal behavior, highlighting potential connections between fatherly and motherly care.
Researchers found that metal-based nanomaterials like silver and zinc oxide can cross an in vitro model of the blood-brain barrier, affecting astrocyte cells and potentially leading to neurotoxicity. The study's discovery could help design safer nanomaterials and target brain diseases.
A study analyzing age-at-death records of 33,715 Indigenous people in central California between 3050 BCE and 1870 CE found that Spanish settlers contributed to severe demographic collapse. The research suggests extreme social disruption caused by the presence of Europeans led to increased mortality rates among both males and females.
A team of scientists has developed an electrochemical reduction reaction pathway that converts CO2 into 1-butanol without CO dimerization. The use of copper phosphide as a cathode enables high product selectivity and efficiency, making it a promising alternative to traditional fossil fuels.