Scientists have observed a rare pre-explosion outburst occurring just one month before a massive star underwent a supernova explosion. The findings validate a particular model predicting this type of event and provide insight into the processes taking place in the cores of such massive stars.
Researchers from Jena University warn of severe environmental damage in the Antarctic due to human activities such as vehicle tracks and building work. They suggest designating the Fildes Peninsula as an 'Antarctic Specially Managed Area' to reduce conflicting interests and protect the unique flora and fauna.
A large-scale study found that abnormal microRNA levels can be used to classify triple-negative breast cancer into four subtypes. The findings could lead to more effective therapies and personalized treatments for individual patients.
The study found that growing proportions of Harris County's Asian adults are now the U.S.-born children of Asian immigrants, and they are even better educated than their parents. This demographic shift suggests a changing face for the local Asian population in Houston.
A study published in PLOS Pathogens found that HIV exploits a human cytokine called interleukin 7 (IL-7) in semen to promote its own transmission. The researchers discovered that the increased concentration of IL-7 in semen facilitates HIV transmission to cervical tissue ex vivo.
Leading crowd work researchers propose a research agenda to enhance collaboration, incorporate AI, and create career paths for workers. The plan aims to make crowd work attractive for the best workers and thinkers, reducing exploitation and increasing rewards.
Two coronal mass ejections (CMEs) were observed by NASA's Solar Terrestrial Relations Observatory and Solar and Heliospheric Observatory, emitting solar particles into space at speeds of up to 750 miles per second. Historically, CMEs of this strength have caused minimal effects on Earth
A University of Missouri nursing informatics expert suggests that sophisticated IT leads to more efficient coordination of care and better protection of patient privacy. The study found that nursing homes with technology use more frequent face-to-face communication at the bedside, while those without IT rely on verbal cues or visual cues.
A minimally invasive surgical procedure to remove blood clots in brain tissue after hemorrhagic stroke appears safe and effective in improving long-term disability and reducing hospital time. The study found that patients treated with the surgery had less disability, spent less time in the hospital, and were less likely to be in a long...
Researchers found that healthy adults acquire a memory of microbes they've never encountered before, which could explain childhood vulnerability and vaccination effectiveness. This discovery challenges the long-held assumption that immune memory only develops upon exposure.
A recent study published in Cell Reports found that sunitinib, an anticancer drug, does not cause lingering risks for patients after their treatment ends. The research suggests that sunitinib works by slowing tumor growth and prolonging survival during treatment, without altering tumor biology after the drug is stopped.
The Hastings Center has released a special report on the evolving landscape of animal research ethics, citing examples of changes improving animal welfare and replacing animal testing. Alternative models, such as human cell-based toxicity testing, are gaining traction.
Researchers have created a nanostructure that manipulates electron waves to form plasmonic halos, offering control in light filtering and potential applications in biomedical plasmonics and discrete optical filtering. The unique structure allows for selective light transmission, creating an array of colored 'halos',
Researchers from Carnegie Museum of Natural History joined an international collaboration to create the most complete picture yet of placental mammals' evolution. The study combined molecular and morphological data on over 83 species, revealing new insights into their ancestry and shedding light on extinct species.
Scientists from Harvard Medical School and business innovators used a crowdsourcing platform to analyze vast amounts of genetic data, achieving unprecedented accuracy and speed. The study demonstrates the potential for combining basic science research with commercial sector expertise to solve complex problems.
A University of Toronto Scarborough researcher helped create a family tree of placental mammals, placing humans in the tree of life. The study used genetic and physical traits to conclude that placental mammals diversified much later than previously thought, with all major groups alive today originating after the dinosaurs' extinction.
Adding fruits and vegetables to the diet has been shown to reduce metabolic acidosis and kidney injury in late-stage chronic kidney disease patients. One-year plasma total carbon dioxide levels increased in both groups, indicating a lessening of metabolic acidosis.
The Gerontological Society of America has received a three-year grant to build upon its success in training geriatric social workers. The grant aims to establish a National Center on Gerontological Social Work Excellence, focusing on collaboration with the VA and mobilizing the HGSWI Alumni Network.
A new national poll conducted by Duke University found that 64% of Americans strongly support regulating greenhouse gas emissions and requiring utilities to switch to lower-carbon fuel sources. However, support for market-based approaches like cap-and-trade or a carbon tax is low, with only 29% in favor.
Researchers at ORNL have solved the mystery of how bacteria convert mercury into methylmercury, a far more toxic form. The team identified two genes, hgcA and hgcB, responsible for this conversion process, which has significant implications for protecting human health.
Richard A. Flavell and Ruslan Medzhitov have been awarded the 2013 Vilcek Prize for Biomedical Science for their pioneering work on the fundamental roles of the innate immune system. Their research has led to important insights into immune responses, with implications for various fields of biomedical studies.
Fishing communities in Indonesian Coral Triangle's Karimunjawa National Park have improved their social well-being while reducing reliance on marine biodiversity. The co-management approach has stabilized reef fish biomass and empowered participant communities, ensuring sustainable development.
A randomized controlled trial involving 656 patients found that intra-arterial device-based approach plus standard drug therapy did not improve functional independence after 90 days. Intra-arterial therapy was more effective at removing clots and re-establishing blood flow, but it did not lead to improved disability.
A team of scientists, led by University of Florida researchers, has generated the most comprehensive tree of life on placental mammals, which includes humans. The study reveals that these mammals diversified after the extinction of dinosaurs 65 million years ago.
A USC study finds that progestin-releasing long-acting reversible contraception (LARC) devices may pose a slight negative impact on metabolic markers, raising the risk for type 2 diabetes in healthy, obese reproductive-age women. The research concludes that LARC appears safe but merits further investigation.
Research in England and Wales reveals a significant reduction in paracetamol overdose deaths due to smaller pack sizes, with a 43% decrease over 11 years. However, the study's authors caution that this trend may not continue if further measures are not taken to limit the death toll.
A molecule called Dickkopf-1 accumulates with age and inhibits the formation of new neurons in the brain. Researchers found that blocking production of Dkk1 can restore youthful levels of neurogenesis and improve memory performance.
A recent study found that soldiers returning from Iraq and Afghanistan with mild TBI have measurable abnormalities in their brains, including 'potholes' in the white matter. These abnormalities are related to the severity of the injury and are correlated with cognitive deficits.
A study found that salmon use the geomagnetic field as a navigational aid, with changes in intensity correlating with their migration route. The results suggest that the fish imprint the magnetic field during their juvenile stage and use it as a proxy for geographic location when returning as adults.
A panel of surgical experts identified 10 symptoms that may indicate complications in colorectal surgical patients, including wound drainage issues, lack of bowel movement, and abdominal swelling. The study aims to provide a standardized warning system for hospital discharge instructions.
A study at the University of Liverpool found that disease risk in ladybirds cannot be predicted without understanding disease dynamics at a small geographical scale. The researchers discovered that differences in mating rates across habitats, driven by food supply, contributed to varying disease outbreak sites.
A team of researchers led by Case Western Reserve University is investigating a new material that can operate at extremely high temperatures without cooling. They aim to develop heat-tolerant electronics with the potential to withstand over 200 degrees Celsius, benefiting industries such as aerospace and automotive.
Researchers at Rutgers Center on Public Security are using a $500,000 grant from the National Institute of Justice to conduct risk terrain modeling research. The approach, called RTM, predicts crime hotspots by analyzing historical data and environmental factors.
Scientists have identified a natural trigger that enables stem cells to develop into different cell types in the body, including liver and brain cells. The discovery of protein Tcf15 could help improve techniques for turning stem cells into other cell types in the laboratory.
Researchers found that minimally invasive delivery of tPA directly into brain clots improved functional recovery in patients with intracerebral hemorrhage, reducing hospital stays and costs. Patients who received the active tPA treatment recovered more quickly and independently after a year.
Researchers at UIC will study how young adults use e-cigarettes, snus, and other new tobacco products, seeking to understand their motivations and potential effects on tobacco dependence. The study aims to develop effective ways to convey factual information about alternative tobacco products to young adults.
Astronomers have uncovered a mysterious infant star with strobe-like flashes, revealing insights into the early stages of star formation. The flashes are thought to be caused by periodic interactions between two newly formed stars in a binary system.
A new study reveals that the decline in duck hunting, with annual sales of 'duck stamps' falling by 36%, is resulting in a significant financial loss for conservation efforts. The loss of revenue could have resulted in up to $126 million being invested in habitat conservation, with potentially 42,495 ha of wetlands being made available.
A recent study documents more than 100 species of amphibians and reptiles in Luzon's Sierra Madre Mountain Range. The region's unique biodiversity includes 32 endemic amphibian species and 76 native reptile species.
A new approach by Yale University scientists offers greater control over the three-dimensional structure of molecular compounds, enabling more effective drugs. This breakthrough can lead to the creation of novel piperidine derivatives with improved binding properties.
Researchers warn that molecularly targeted therapies may stunt growth, delay puberty, or increase the risk of diabetes in children. The lack of long-term data on these treatments raises concerns about their use in pediatric patients. Experts recommend using these drugs only in clinical trials to monitor side effects.
A new study found that up to 34% of stroke patients who had their life support withdrawn might have achieved an acceptable level of functioning if support had been continued. The study compared the outcomes of 78 patients whose life support was withdrawn with those of similar patients who remained on life support.
Scientists have determined the most precise dates yet for the dinosaur extinction and a comet or asteroid impact, which occurred around the same time. The revised dates clear up lingering confusion over whether the impact occurred before or after the extinction.
A recent study found that nearly 8% of stroke survivors in the US contemplate suicide, with risk factors including depression, age, and socioeconomic status. Regular screening for suicidal ideation is recommended to address this often-overlooked concern.
Researchers discovered zinc's role in preventing excessive inflammation by interacting with the NF-κB pathway. Zinc deficiency can lead to poor outcomes in sepsis and common colds, but supplementation may help. The study sheds light on how zinc balances the immune response.
The Case Western Reserve University School of Medicine has received a grant to study gastric cancers and explore the role of interleukin-33 (IL-33) in inflammation and its potential link to gastrointestinal cancers. The research aims to identify more effective treatments for these deadly diseases, which are currently incurable.
A new study reconstructs the common ancestor of placental mammals using 'phylophenomics,' revealing they did not diversify into present-day lineages until after the K-Pg extinction event. The study combines genomic and phenomic data, visualizing a small, insect-eating animal as their common ancestor.
A UT Arlington software engineer has developed a computer testing tool that significantly reduces the time and cost of determining whether a new program works. The Advanced Combinatorial Testing System (ACTS) uses combinatorial testing to test complex systems, such as healthcare information technology.
Researchers have shown that performing an action on one particle can immediately affect another, even if they are separated by vast distances. This has implications for secure communication methods, as entangled photons could enable fast and private data transfer.
A recent study published in Science investigates the stress state on the fault that controls a very large slip during an earthquake. The research found that the present shear stress on the fault is nearly zero, indicating a nearly complete stress change during the earthquake.
A meta-analysis of 12 studies involving 116,000 participants found no evidence of an association between job strain and overall cancer risk. Stress can cause chronic inflammation, leading to unhealthy behaviors such as smoking and excessive alcohol consumption.
Chagas disease infects an estimated 10 million people worldwide, causing significant economic burden, including USD $6.7 billion in future healthcare costs in the United States.
A proof-of-concept device that combines a single nitrogen-vacancy centre with an optical resonator and waveguide has been created. The device, described as the 'building block of future quantum networks,' could enable faster computers for certain problems.
Researchers find that broken molecular motors cause stress and anxiety in mice, potentially leading to new anti-anxiety drug candidates. The discovery highlights the critical role of these motors in transporting serotonin receptors, which regulate mood and behavior.
Researchers found that salmon imprint on the magnetic signature of their home river and seek it out during spawning migration. This discovery represents a major new phenomenon in behavioral biology, providing insights into how salmon navigate epic distances.
Scientists at Max Planck Institute for Molecular Genetics discovered a recurring pattern of over 13,000 epigenetic alterations in young mouse tumours, which is partly conserved in human colon carcinoma. This finding may facilitate the identification of novel clinical colon cancer biomarkers for early detection.
Researchers developed a method to identify the cause of infectious disease outbreaks based on online reports and data from ProMED-mail. The findings showed that three-quarters of disease outbreaks formed distinct clusters, and previously unknown outbreaks could be correctly identified 88% of the time.
Researchers tracked 73 subjects with intracerebral hemorrhage (ICH) to find that about 60% of newborns had visible seizures at the time of stroke, while 43% of older children did. Within two years, 13% of study subjects developed epilepsy, and patients with elevated brain pressure were more likely to experience later seizures.
A recent study published in Neurosurgery found that pregnancy and delivery do not increase the risk of brain aneurysm rupture. In fact, women with unruptured aneurysms have a high rate of cesarean deliveries, which may be unnecessary. The study also suggests that prompt treatment after rupture can help decrease poor outcomes.
Researchers have identified enigmatic protein aggregates in the brains of dementia patients with frontotemporal dementia and ALS. These aggregates are likely damaging and may be a target for therapy, as they are thought to contribute to disease progression.