A Norwegian study found that climate events, particularly rain-on-snow events, drive synchronized population fluctuations among high-arctic vertebrates. This synchrony affects the entire community, including species such as reindeer, rock ptarmigan, and arctic foxes.
Autophagy is triggered when cells are starved for nutrients, infected, or damaged. The study reveals that AMPK regulates Vps34 kinase complexes in different ways, inhibiting non-autophagy enzymes and activating autophagic ones.
A new study found that the brain's pattern of blood flow in the prefrontal cortex alters with age during multitasking. Healthy older people had a higher and more sustained increase in oxygenated haemoglobin, indicating increased brain activity. This change is associated with normal aging and may impact dual-task performance.
A new study led by UCSF finds that trained nurse practitioners, certified nurse midwives, and physician assistants can provide clinically safe early abortion care. Outpatient abortion is very safe for all providers, regardless of qualifications.
Researchers warn of bleak outlook for savanna fuelwood supplies in Africa, with potential exhaustion in 13 years. To avoid this, reducing fuelwood use by 15% annually is proposed until only 20% of households rely on it.
The University of Minnesota has been awarded a $28 million grant to develop next-generation microelectronics, including spin-based computing and memory systems. The Center for Spintronic Materials, Interfaces, and Novel Architectures (C-SPIN) will bring together top researchers from across the nation to advance this technology.
Researchers discovered that a team of dynein motors can share a load much larger than any one motor can handle due to their ability to change gears. This allows them to work efficiently and generate large forces. In contrast, kinesin motors without gears cannot produce comparable forces.
INRS researchers are working on a compact particle accelerator that uses laser wakefield acceleration to produce ultra-short and coherent light sources. This technology has the potential to advance photonics research in Canada and develop new technologies for clinical settings.
The JPSS-1 Spacecraft has completed its delta Critical Design Review, demonstrating that the development of the spacecraft is on track to provide critical environmental data. The success of this review marks an important milestone in the project, with the spacecraft now approved to proceed into implementation.
Mothers of newborns in neonatal intensive care units struggle to find private spaces for breastfeeding due to hospital design. This lack of privacy can lead to missed feedings and increased health risks for low-weight premature babies. The study's findings highlight the need for innovative solutions to address mothers' concerns.
Scientists at Cincinnati Children's Hospital Medical Center and the University of California, San Francisco, discovered a light-response pathway that controls retinal neuron development during pregnancy. This finding has significant implications for understanding fetal eye development and ocular diseases caused by vascular disorders.
A new study found that malaria and typhoid fever are the biggest health threats for travelers to tropics, affecting 4% of returned travelers. The study analyzed over 82,000 ill travelers and found no cases of Ebola or other feared diseases.
The first series of debates on cancer development explores two major theories: Somatic Mutation Theory and Tissue Organization Field Theory. Researchers propose focusing on explaining paradoxes to advance cancer research.
The discovery of a new fossil in Tunisia reveals that African sea cow ancestors lived in freshwater environments, predating those found in Jamaica. This finding provides crucial insights into the evolutionary origins of these marine mammals.
The INRS Energy Materials Telecommunications Research Centre will have access to a cutting-edge Dynamic Transmission Electron Microscope (DTEM) with unprecedented high spatial and temporal resolution. This equipment will revolutionize materials research, enabling the study of ultrafast and ultrasmall material structures.
Preterm infants with slower growth have delayed cerebral cortex development, report Canadian researchers in a new study published in Science Translational Medicine. The cerebral cortex is involved in cognitive and motor processes, and the study's findings may lead to new discoveries on optimizing brain development.
Scientists have developed a new method to produce large amounts of the promising anti-cancer substance AMF-26, which targets the Golgi apparatus in cells. The synthetic version of AMF-26 shows equal effectiveness as its natural counterpart in laboratory tests.
Researchers analyzed studies on spring break from 1980 to 2010 and found no conclusive evidence of increased extreme behaviors. Instead, they suggest that campus behaviors are a good predictor of how students will act during spring break. The media portrayal of spring break may not accurately represent the full experience.
The Economic and Social Research Council (ESRC) is pleased to announce £30m in funding for eight new research centres and large grants. These investments will focus on various subjects, including infrastructure, interdisciplinary working, and international collaboration.
Patients who develop surgical-site infections are four times more likely to develop a deep-vein thrombosis or pulmonary embolism. Researchers recommend increased monitoring and screening for clot risk in infected patients.
Researchers at Brigham and Women's Hospital found that teams using checklists were three-fourths less likely to miss key life-saving steps in care during emergency situations. The study involved simulated surgical crisis scenarios and showed a significant reduction in failure rates when checklists were used.
A 48-week course of antiretroviral medication can delay the need for lifelong treatment and reduce virus levels in the blood for up to sixty weeks after stopping. This study suggests that early treatment may slow immune system damage and reduce the risk of transmission.
A Kansas State University-led study reveals a new protein that affects how cells in the innate immune system function and protect humans against invading bacteria. The researchers characterized a glycosyltransferase activity protein that targets GAPDH function to inhibit NF-kappaB activation, leading to enhanced disease susceptibility.
Researchers found that probiotic supplementation improved gastrointestinal immune function and reduced inflammation in SIV-infected macaques, a model for human HIV-infection. This study suggests that probiotics could benefit ARV-treated HIV patients by mitigating the damage caused by viral-induced gut inflammation.
Researchers at the US Department of Agriculture have created a biodegradable thermoplastic composite using sugar beet pulp and polylactic acid. The new material retains mechanical properties similar to traditional plastics, offering a sustainable alternative for disposable food packaging.
Researchers found that probiotic supplementation improved gastrointestinal immune function and decreased inflammation in SIV-infected macaques treated with ARV. These findings suggest that probiotics could benefit ARV-treated HIV patients, potentially leading to better treatment outcomes.
Researchers are developing economic models to reduce the economic costs of implementing carbon dioxide emission-reducing policies, encouraging low-carbon innovation. The project aims to show both positive and negative impacts of policies to encourage low-carbon innovation.
A study published in the Journal of Adolescent Research found that young adults overwhelmingly support traditional views on marriage proposals and taking a husband's last name. Researchers surveyed 277 undergraduates aged 17-26 and discovered that 68.4% of men and 66% of women prefer the man to propose, while 60.2% of women are willing...
Researchers at IDIBELL-Bellvitge Biomedical Research Institute have developed a new method to diagnose hereditary breast and ovarian cancer syndrome based on mass sequencing of BRCA1 and BRCA2 genes. The new protocol has been shown to be highly sensitive and specific, reducing costs and time for obtaining results.
Researchers identified a social chromosome in the red fire ant that enables multiple queens, outperforming single-queen colonies in busy environments. The discovery could lead to novel pest control strategies, such as deactivating genes in the social chromosome to induce social anarchy.
A mass poultry vaccination programme has been credited with a significant decline in Salmonella cases, from 1.6 cases per 1,000 person years in 1993-96 to 0.2 cases per 1,000 person years in 2008-09. The number of laboratory-confirmed cases dropped from over 18,000 in 1993 to just 459 in 2010.
A study published in the New England Journal of Medicine found that H1N1 flu shots do not increase the risk of pregnancy loss. In fact, vaccination reduces the risk of fetal loss by up to twofold compared to influenza infection alone.
Researchers at University of Michigan developed a nanoscale coating that repels over 95% of liquids, including oils, alcohols, and toxic acids. The coating uses air pockets to reduce intermolecular forces, causing liquids to bounce off the surface.
Researchers identified a host signaling pathway used by malaria parasites to escape host cells, allowing for potential new strategies to combat the disease. A compound called sotrastaurin, already tested in humans and deemed safe, showed promise as an oral antimalarial.
A new study provides a geological timeline for ice loss in West Antarctica, shedding light on the recent rapid melting of glaciers and improving predictions for future sea-level rise. The research reveals that exceptional changes in glacier retreat may occur only rarely over the past 10,000 years.
Researchers estimate that using marginal lands for growing cellulosic biomass crops could provide up to 215 gallons of ethanol per acre, with substantial greenhouse gas mitigation. The study found that mixed species cellulosic biomass can be a prime real estate for meeting the nation's alternative energy production goals.
The new camera combines active and passive infrared imaging capability into a single chip, enabling lighter and simpler devices with lower power dissipation. The device uses novel semiconductor materials to detect thermal radiation in both short- and mid-wavelength infrared ranges.
A study by Jason Schnittker and colleagues reveals a long-lasting relationship between incarceration and psychiatric conditions affecting one's mood. The research suggests that mental health treatment could help former inmates reintegrate into society, addressing difficulties such as diminished social relationships and daily activities.
A recent study by EcoHealth Alliance found Ebola virus antibodies in approximately 4% of the bats screened in Bangladesh, indicating that Rousettus fruit bats may be a natural reservoir for Ebola virus. The study extends the known range of Ebola to mainland Asia.
Researchers identified ELTD1 as a promising biomarker for diagnosing gliomas, particularly high-grade glioblastoma multiforme (GBM). Studies found that ELTD1 levels were strongly associated with glioma development and prognosis.
Researchers at Carnegie Mellon University discovered that when one brain area is injured, a 'back-up' team of secondary brain areas immediately activates, replacing the unavailable area and its confederates. This allows individuals to continue functioning after key brain areas have been damaged.
A Mayo Clinic study found that skin issues and joint disorders are the most common reasons people visit their healthcare providers. The research team tracked over 140,000 residents who visited Mayo Clinic between 2005 and 2009 and discovered that these conditions affected both genders and all age groups.
A University of Colorado Cancer Center study found that SPARC acts as an anti-inflammatory drug, reducing tumor growth and metastasis in bladder cancer. The protein is produced by healthy tissue to mute tumors, but aggressive cancers suppress its production, leading to faster disease progression.
Jute has been found to enhance the strength and resistance of mortar and concrete by working as a reinforcement fiber. The addition of jute fibers also delays the hardening process, making it beneficial for applications requiring transported pre-mixed cement aggregates.
A new robotic fish, named Grace, has been designed to glide long distances through water, gathering valuable data on lake and river quality. The robot's ability to glide is achieved through a pump system that pushes water in and out of the fish, allowing it to travel indefinitely with minimal energy consumption.
The hepatitis B virus X protein (HBx) represses microRNA-148a, leading to increased levels of the oncogenic protein HPIP and subsequent oncogenic transformation in liver cancer. This study demonstrates a cancer-associated virus promoting carcinogenesis through direct manipulation of a microRNA.
A new fossil discovery in southern California challenges earlier claims of a 'killer walrus' existing. The ancient creature was found to have a diet rich in fish, contrary to initial estimates that it preyed on marine mammals.
A study found that overweight and obese individuals are gaining weight rapidly in low-and middle-income countries, while those who are severely undernourished are not experiencing similar weight gains. This growing divide may force governments to balance priorities between addressing health issues afflicting the underweight and the obese.
Researchers find earliest recorded spring flowering in the eastern United States, exceeding 161-year history, due to warmer springs caused by climate change. Plants flower up to 4.1 days earlier with each degree Celsius rise in mean spring temperatures.
A team of economists and fish ecologists found that modern fish passage facilities were unsuccessful in allowing economically important species such as salmon, shad, and river herring to pass through dams. The study highlights the need for dam removals to restore diadromous species populations.
A new study reveals that photovoltaics (PV) outperform biofuels in terms of energy efficiency, land use, and greenhouse gas emissions. PV systems are 30-200 times more efficient than biomass-based pathways, requiring significantly less land to produce the same amount of energy.
A recent study by the Norwegian Institute of Public Health found no increased risk of fetal death associated with pandemic vaccination. The study analyzed data from pregnant women who received COVID-19 vaccines and compared them to those who did not receive vaccines.
Researchers from the University of Cambridge and collaborators have developed a new protocol that 'recycles' entanglement to increase the efficiency of quantum connections. The breakthrough enables the teleportation of multiple qubits simultaneously, paving the way for advances in quantum computing.
Research analyzed over 10,000 UK couples and found that people's preferences for a partner's height generally translate into real relationships. However, the observed patterns were not as frequent as expected based on previous studies.
Researchers found that record warm temperatures in 2010 and 2012 resulted in the earliest spring flowering in the eastern United States. Spring is arriving much earlier today than it has in the past, with plants flowering over three weeks earlier than when they were first observed.
A new study by the USDA Forest Service found an association between tree loss and increased human mortality from cardiovascular and lower respiratory disease. The study analyzed data from 1,296 counties in 15 states and found that Americans living in areas infested with the emerald ash borer suffered from more deaths from these diseases.
A recent study found that lung cancer mortality rates are disproportionately high among blacks living in the most segregated counties in the US. The study suggests that addressing socioeconomic disparities and improving access to healthcare may be key to reducing these disparities.
A study analyzing over 25,000 message board posts found that breast cancer survivors frequently discuss troublesome side effects from aromatase inhibitors, leading some to discontinue or switch therapies. The findings have broad implications for promoting proper adherence and informing patient-to-patient discussion online.
A new study from MIT researchers suggests that some epileptic seizures may originate in non-neuronal glial cells. Mutations in a gene called zydeco, which influences glial-cell communication with neurons, appear to make neurons more excitable and prone to seizures.
Tropical Storm Emang is showing moderate to heavy rainfall near its center, with estimated rates of 2 inches per hour. The storm is currently moving westward at 3 knots and expected to pass southwest La Reunion Island by January 21.