A new study finds that beluga whales in Alaska are mirroring changes in Arctic sea ice timing, delaying their migration south by up to one month. However, another population remains unaffected by these changes, suggesting variability in response across populations and time.
A study published in Nature Communications found that nearly three quarters of immune traits are genetically determined, with adaptive responses being more influenced by genetics than previously thought. The research also highlights the importance of environmental factors such as diet on shaping innate immunity in adult life.
A new Yale study suggests that delaying chemotherapy after lung cancer surgery can lead to similar outcomes and lower risk of death. The research found that initiation between 57-127 days post-surgery had a similar impact as traditional timing, indicating a potential benefit for patients.
A comprehensive study on Hong Kong's marine biodiversity reveals the territory is home to over 26% of China's recorded marine species, comparable to regions like the Caribbean Sea and East Africa. The research highlights the importance of conserving marine habitats in Hong Kong, with only 2% currently protected.
A new Northwestern University study found that 13 speedy mini-apps, IntelliCare, significantly reduced depression and anxiety in participants who used them up to four times a day. The apps offer various exercises and strategies to improve mental well-being, resulting in a 50% decrease in depressive and anxiety symptoms.
The cancer death rate has decreased by 25% since its peak in 1991, resulting in 2.1 million fewer cancer deaths between 1991 and 2014. The decline is largely driven by reductions in smoking and improvements in early detection and treatment.
Researchers have solved the atomic structure of HIV's intasome, a key piece of machinery that integrates virus into human DNA. The discovery provides structural clues informing the development of new HIV drugs and sheds light on mechanisms of viral resistance.
The Mathematical Association of America honored Martha J. Siegel, Mark F. Schilling, and Robert D. Hough with prestigious awards for distinguished service and exemplary writing at the Joint Mathematics Meeting. The MAA recognized their contributions to advancing mathematical research and strengthening the community.
A Mayo Clinic study finds that vaginal microbes are distinct in women with endometrial cancer compared to those without the disease. Researchers hope to use vaginal swabs as an early screening tool and investigate the role of the microbiome in preventing endometrial cancer.
Researchers have discovered a potential new treatment for Alzheimer's disease by inhibiting the 12/15-lipoxygenase enzyme, which is elevated in patients with the condition. The study found that this inhibitor reverses cognitive decline and neuropathology in an AD mouse model, even after symptoms have already developed.
Killer whales in captivity require enhanced living conditions to elicit natural behaviors. Experts propose changes to environmental enrichment, feeding, and husbandry systems to prioritize psychological and physical wellbeing.
A new study reveals that 50% of Canadians are unaware they have high blood pressure, highlighting the need for increased awareness and education on managing the condition. Researchers also found a significant number of participants experienced hypertensive urgency or emergency, emphasizing the importance of proper management.
Researchers at Scripps Research Institute discovered that lipid rafts on cell surfaces act as compartments to keep enzymes from mixing with their binding partners. Disrupting these rafts through touch triggers a signal that communicates the touch to responsive proteins in the cell.
A new study suggests that off-grid solar energy can have significant economic benefits for people living in remote areas, but requires a special business model to succeed. Successful business models include community interaction, partnerships, local capacity building and addressing barriers unique to the off-grid market.
Researchers found no direct association between hot weather and increased Salmonella prevalence at free range egg production farms. The study emphasizes the critical role of hand hygiene in reducing food poisoning from eggs.
Scientists discovered Ebola virus RNA lingering in the lungs of a recovering patient for about five days after it cleared from blood. The findings support the possibility of active replication in the lungs, raising potential roles for lung infection in the disease's pathogenesis and transmission.
Ian Stewart won the MAA Euler Book Prize for his book In Pursuit of the Unknown, a journey through equations that shaped history. Tim Chartier received the Beckenbach Book Prize for his book When Life is Linear, which brings linear algebra alive in everyday life.
Researchers found that iron deficiency anemia reduces the risk of malaria by 16% in African children, compared to sickle-cell trait, which only reduces it by 4%. Iron supplementation reverses this protection, increasing the risk of P. falciparum malaria.
A new study provides an integrated marketing-operations framework to help companies design more effective service policies for their call centers. The framework considers the flow of customers through the call center and their subsequent behavior, allowing companies to design different service levels for various customer types.
Recent studies in density functional theory (DFT) have raised concerns about the accuracy of approximations used in computational chemistry. Researchers found that even with improved energy calculations, the quality of electron density simulations worsened over time. This contradiction highlights a fundamental flaw in DFT's approach.
The Damon Runyon-Rachleff Innovation Awards support novel approaches to fighting cancer with $2.1 million grants to nine innovative early-career scientists. Their projects aim to significantly impact cancer prevention, diagnosis, and treatment.
The phase I trial of CAR-T therapy with axicabtagene ciloleucel resulted in a durable complete remission rate of 43% among highly refractory diffuse large B-cell lymphoma patients. The treatment showed promising clinical activity, with an overall response rate of 71%, and manageable toxicity.
A study found that high monthly doses of vitamin D reduced acute respiratory infections in older long-term care residents by 40%. However, it also increased the number of falls experienced by these individuals. The study suggests daily dosing with high levels of vitamin D may be needed to minimize risk.
Researchers found small algae-grazing sea urchins and parrotfish may take the place of larger grazers to prevent algae from overgrowing reefs. These tiny organisms, comprising up to 95% of grazing biomass, can preempt shifts from coral to algae on degraded reefs.
A recent study found that the viability of certain bacteria, nematodes, and plants declined over 12 months in stored soil, regardless of source or storage conditions. However, mortality was higher when exposed to sunlight, moisture, and desiccation than protection.
A review in Angewandte Chemie emphasizes the importance of standardized analytic protocols to accurately assess microplastic contamination in aquatic ecosystems. The authors propose a list of nine arguments for harmonized methods, including improved sampling and processing techniques, to ensure reliable data and inform risk assessments.
A Stanford study suggests that the development of face recognition entails brain tissue growth, particularly in regions that distinguish faces from other objects. The research found microscopic tissue growth in these regions, which continues into adulthood and contributes to the differences between face and place recognition areas.
Researchers redate human settlement in Tibet, pushing back timeline by thousands of years; new findings suggest permanent residence may have been established due to wetter climate, enabling pre-agricultural peopling of the plateau.
New research published in Science suggests that humans established permanent settlements on the Tibetan Plateau around 7,400 years ago. The findings contradict previous estimates of 5,200 years ago, and are consistent with genetic adaptations to high-altitude environments dating back at least 8,000 years.
Exposure to second-hand tobacco smoke even before conception appears to impair fetal brain development throughout pregnancy, damaging regions involved in learning and memory. The impact was most severe with exposures occurring in late gestation, but adverse effects also occurred when mothers were exposed prior to conception.
A new review examines the potential health benefits of resistant starch, a form of starch not digested in the small intestine. It has been linked to improved blood sugar control and enhanced gut health through increased production of short-chain fatty acids.
A recent study finds that urban centers like Hong Kong can play a crucial role in conserving globally threatened species. Introduced populations of these species have been thriving outside their native habitats, providing an opportunity to augment declining populations in their native ranges and mitigate threats to local ecosystems.
A recent study published in Springer's journal Sex Roles found that awareness campaigns targeting women can be a powerful tool to encourage collective action against female sexual objectification. The research revealed that watching a critique video clip increased women's willingness to support protests, whereas men showed no such effect.
A new study published in Nature finds that hurricanes approaching the US coast are more likely to intensify during less active Atlantic periods, contradicting previous assumptions about hurricane behavior. This discovery suggests that coastal regions may be better protected by quieter periods in the basin.
Scientists have developed a new technique to examine blood vessels in the brain using 3D Image Analysis, allowing for greater understanding of how diseases like dementia, brain cancer, and stroke affect veins and capillaries. This innovative method could help identify early warning signs of these illnesses, potentially saving lives.
Researchers found that cell phones distract individuals with lower internet usage, impairing attention and judgment. Heavy internet users, however, use mobile phones as spatial cues to enhance visual search.
A researcher at the University of Kansas is examining the role of nonprofits in community cohesion and recovery after the Deepwater Horizon oil spill. The study aims to reveal the social-ecological drivers of response and current extent of recovery in approximately 92 communities using data from various disciplines.
Researchers have pinpointed the location in the sky of a Fast Radio Burst (FRB), allowing them to determine the distance and home galaxy of one of these mysterious pulses of radio waves. The precise location enables observations using multiple telescopes, which revealed a faint dwarf galaxy at the location of the bursts.
A PLOS study found that Neotropical spotted cat species are drawn to protected areas, with habitat preferences playing less of a role than protection status in determining their distribution. The study suggests maintaining and creating reserves can help conserve the species.
A recent study published in Annals of Emergency Medicine reports a case of a 6-year-old child who ingested liquid nicotine from an e-cigarette, requiring intubation and ICU admission. The patient's mother had mixed the liquid herself, resulting in a highly concentrated substance that caused severe symptoms and altered mental status.
A recent study published in Neurology found that adhering to a Mediterranean diet can help maintain brain volume in older adults. The study, which followed 967 Scottish people aged 70 for three years, revealed that those who followed the diet more closely retained more brain volume than those who did not.
The Lucy spacecraft will launch in 2021 and fly by six Trojan asteroids between 2025 and 2033, studying their geology, surface composition, and bulk properties. The mission aims to decipher the history of the solar system and provide critical knowledge about planetary origins.
A systematic review of screening tests and interventions for type 2 diabetes prevention found low diagnostic accuracy, with lifestyle interventions showing a 37% reduction in relative risk. Population-wide approaches may be more effective than screen and treat policies alone.
A new study reveals that a minor pilin protein triggers pilus retraction in Vibrio cholerae, differing from other disease-causing bacteria. This discovery advances understanding of Type IV pili function and may aid in developing prevention and treatment strategies for cholera.
A new study using independent data from satellites and robotic floats confirms that the oceans have warmed at a rate of 0.12 degrees Celsius per decade since 2000, nearly twice as fast as earlier estimates. This finding eliminates much of the global warming hiatus, which was attributed to biases in ship measurements.
A study of 6.6 million people found that those living within 50 meters of a major road had a small increased risk of developing dementia, with up to 7-11% cases potentially attributed to traffic exposure. The study also found no link between traffic exposure and Parkinson's disease or multiple sclerosis.
A new study by Joslin Diabetes Center shows that participants in the Why WAIT weight loss program experienced reduced cardiovascular disease risks and improved insulin sensitivity even five years after completing the intervention. The study found that maintaining a 7% weight loss was a good predictor of long-term weight loss success.
A new study maps species threat hotspots across the globe, connecting consumer purchases to environmental impacts. The research found that US consumption caused hotspot zones in Southeast Asia, Madagascar, and southern Europe, among other regions.
Researchers at Brown University have discovered the optimal shape of sea sponge spicules, which provides a blueprint for increasing buckling resistance in human-made structures. The tapered shape, similar to a Clausen column, offers improved buckling resistance due to its consistent and nearly identical dimensions.
A study published in JAMA Cardiology found that only 32% of patients between 30-39 years old with high LDL-C levels were prescribed statins. For those aged 40-49, the rate was 47%, while for those over 50, it was 61%. This suggests a significant gap in treatment for younger adults with severe dyslipidemia.
A recent study found that girls from low-income families in the US are unprepared for puberty, with many reporting negative experiences during this transition. The research highlights the need for more robust interventions to support and provide information about puberty for low-income girls.
Researchers from the University of Cincinnati and others received monetary awards from PETA for contributing to the development of Adverse Outcome Pathways. These pathways help scientists design animal-free testing approaches to predict adverse effects and protect human health.
Researchers found that human pyramidal neurons have a specific membrane capacitance that is half of the universal value for biological membranes, improving signal processing and communication within and between cortical neurons. This unique property may be an evolutionary adaptation to compensate for the larger brain and cells in humans.
Larger males breed first, with offspring having better survival rates and producing more newborns, suggesting a clear reproductive advantage. This study shows the complexity of sexual selection in reverse in pipefish, highlighting factors beyond size and timing.
Researchers developed biocompatible scaffolds with controlled-release silver ions to inhibit MRSA bone infection. The antimicrobial properties of silver combined with bone-forming stem cells offer a potential implant system for treating and preventing bone infections.
Researchers at the University Health Network found that a single fecal transplant is not more effective than the standard of care in treating recurrent C. difficile infection. The study's results suggest that more research is needed to determine the effectiveness and long-term implications of fecal transplantation.
Researchers have developed an artificial leaf that converts sunlight into hydrogen fuel with improved efficiency, mimicking the natural process of underwater photosynthesis. This breakthrough has significant implications for reducing carbon dioxide emissions and providing a cheap, stable hydrogen fuel source.
A high-fiber diet triggers microorganisms in the gut to produce short-chain fatty acids, which induce neutrophil apoptosis and resolution of inflammation. This finding has important implications for treating gout and possibly other inflammatory diseases.
Researchers at Rockefeller University have identified a single mutation that enables bacteria to acquire genetic memories of viruses 100 times more frequently than naturally. This breakthrough could facilitate the creation of CRISPR-based recording systems for various applications, including data storage and cancer research.
A new study confirms the steady warming of oceans over the past 75 years, with a rate of 0.12 degrees Celsius per decade since 1997, contradicting claims of a global warming 'hiatus'. The research uses data from buoys, satellites, and Argo floats to support the NOAA findings, providing accurate measurements of ocean temperatures.