Activity monitors have moderate validity compared to other measures of daily energy expenditure and physical activity, leaving out important information such as intensity of effort. Current accelerometers perform well at moderate walking speeds but struggle under other conditions.
Researchers found that wire-free electrodes and the round window surgical approach improved long-term hearing preservation in cochlear implant patients. The study's lead investigator notes that these findings have major implications for doctors and patients seeking to restore their hearing.
Researchers have developed a new technique called Cal-Light to visualize and control neuronal activity. This tool allows for the observation of specific populations of cells implicated in particular behaviors, enabling precise manipulation and dissection of complex neural circuits.
Researchers at Berkeley Lab found a way to pack more data in single acoustic beams for underwater communications, increasing information transmission rates. They demonstrated this by encoding binary data onto an acoustic signal, effectively increasing the amount of information that can be transmitted.
A study reveals how individual-based modeling can help researchers predict the long-term effects of introduced herbivores on invasive species, such as melaleuca. The model suggests that introducing a native beetle can reduce melaleuca growth by 83% and its reproduction by 49% over 20 years.
Researchers from the University of Utah analyzed oxygen isotope data from herbivore teeth and tusks to understand climate dynamics in the Omo-Turkana basin. The findings suggest that fluctuations in rainfall timing and interactions between plants and animals, rather than long-term drought, drove changes in the region's ecosystem.
Research suggests that night shift work impairs the body's ability to repair DNA damage caused by normal cellular processes. Suppression of melatonin, a hormone regulating the internal clock, is thought to be a key factor in this impairment. This may result in higher levels of DNA damage and potentially carcinogenic effects.
A recent study reveals that a third of marine megafauna disappeared around three to two million years ago, leading to a significant reduction in species diversity. The loss of functional entities resulted in an erosion of ecological functions, with 17% of total diversity disappearing and 21% changing.
A new study suggests that monitoring wetland extent can better predict the release of methane from thawing permafrost. Researchers found that decomposition of new organic matter is the main source of methane released, not previously frozen carbon. This knowledge can help improve predictions and understanding of climate change impacts.
Researchers at UNIGE show that Fprs, present on immune cells, also bind to molecules linked to pathogens in the nose of mice, indicating an evolutionary shift towards olfaction. This innovation resulted from two genomic 'accidents' occurring millions years apart during rodent evolution.
A study has characterized the mouse genome, revealing new insights into rare diseases and accelerating the development of new treatments. The research identified 360 new disease models and 28,406 new descriptions of genes' effects on mouse biology and disease.
A new study by Lund University researchers shows that Amazon basin deforestation can disrupt the entire rainforest's resilience and ability to absorb carbon dioxide. Deforestation creates a vicious circle of local warming and changed air circulation patterns, affecting even the untouched inner parts of the rainforest.
Research published in the journal Heart found a significant association between persistent moderate to severe mental distress and increased risk of death among patients with stable coronary heart disease. Conversely, mild or occasional distress over the long term showed no such link.
Researchers found that tweets containing moral and emotional language increase retweets by 20% per word, but only among networks aligned with the sender's ideology.
A new study links declining steelhead trout populations to poor survival rates of juvenile fish in the ocean. Ocean survival rates have declined by 77% in some areas, contributing to low adult abundance and impacting conservation efforts.
Researchers at Berkeley Lab have discovered a new type of semiconductor that can emit multiple bright colors from a single nanowire, challenging traditional quantum dot displays. The 'soft' semiconductors use ionic bonds instead of covalent bonds, making them easier to reconfigure and produce.
Researchers at Stockholm University have found that water can exist as two different liquids at low temperatures, with large differences in structure and density. The discovery was made possible through experimental studies using X-rays, which revealed the existence of these two liquid phases.
Researchers found that pre-school children respond well to simple interactions, while older children engage with robots that reference previous conversations. Interactive storytelling also boosts vocabulary and cognitive development in young children, suggesting that collaborative technology can be an effective tool for education.
Scientists at St. Jude Children's Research Hospital found that epigenetic changes cause T cell exhaustion, leading to failed immunotherapies against cancers and viruses like HIV. Treating T cells with decitabine reversed exhaustion, enabling improved treatment efficacy.
Researchers have developed a new high-throughput technique to determine protein interactions, generating massive libraries and revealing over 8,000 interactions in Arabidopsis transcription factors. This approach enables faster study of fundamental biological interactions and potential treatments for metabolic dysfunction.
The NAWI Graz researchers have developed a method to measure plasmon fields in three dimensions, enabling the focus of light at the nanoscale. This breakthrough could lead to new applications in sensor technology, photovoltaics, and computer storage.
The University of Southern California has been selected to lead a consortium to build 100-qubit quantum machines that can solve complex optimization problems. The $45 million contract aims to develop computational frameworks and design quantum annealers for enhanced quantum optimization.
Researchers at Empa investigate microfiber release from polyester textiles during washing, finding constant fiber quantity regardless of temperature or wash cycle duration. The study reveals a lack of effect from washing agents and detergents on microfiber release.
Researchers have discovered a new 2D material with unique spin properties, making it a promising candidate for spintronics applications. The material's electronic structure was characterized using X-ray and scanning tunneling microscopy techniques, revealing its potential to carry data more efficiently and with lesser power demands.
Researchers at Stanford University developed a new tool to efficiently slice cells in half, enabling faster and more standardized study of single-cell wound repair. The 'cellular guillotine' cuts Stentor cells up to 200 times faster than previous methods with similar survival rates.
Researchers found that African Americans who had at least two modifiable healthy behaviors were 20% less likely to develop high blood pressure. The study also found that those who followed six or more of the American Heart Association's Life's Simple 7 guidelines had a 90% lower risk of high blood pressure.
A new study found that patients newly diagnosed with atrial fibrillation who received early cardiology care had a 9% lower risk of stroke and an 11% lower risk of death. Early prescription of anticoagulants also appeared to lower the risk of stroke.
Researchers find that including an indirect land use change factor in biofuel policies leads to a relatively small reduction in emissions at a high economic cost. The inclusion of this factor imposes a hidden tax on all fuels, increasing their carbon emissions per gallon and fuel prices for consumers.
The ECS Toyota Young Investigator Fellowship has chosen three winners to receive $50,000 awards each for research in green energy technology. The selected fellows will also receive a one-year complimentary ECS membership and the opportunity to present and/or publish their research with ECS.
Researchers found that zolpidem can have significant effects on patients with disorders of consciousness or movement disorders, including those in comas and vegetative states. The medication's effects were often transient but repeatable, and some patients showed improvement to a minimally conscious state.
A recent study found nearly 10% of patients with definite, highly likely, or probable drug-induced liver injury to have a fatal outcome within 2 years. The majority of fatalities were directly attributed to the liver injury, highlighting the severity of this condition.
Researchers found that avoiding social threats leads to decreased mentalizing network activity and increased amygdala activity, indicating heightened threat detection. The study used a Lord of the Rings-themed experiment to investigate neural correlates of social threat perception.
New research finds that taking photos of experiences enhances visual memory, but hinders auditory memory. Participants who took photos recalled more visual details than those who didn't have a camera, while their auditory recall suffered compared to their non-photographing peers.
Women living in lower-income areas were more likely to be diagnosed with late-stage breast cancer after a substantial rollback of Medicaid coverage, according to a new analysis. The study found a significant shift towards later stage diagnosis in low-income areas compared to higher-income areas.
Researchers found that people who took a picture of a sentimental item before donating it donated between 15-35% more than those who did not receive a prompt. This is because possessions, memories, and identity are psychologically tied together.
Researchers at Rutgers University have invented a technology to clone thousands of genes simultaneously, creating massive libraries of proteins from DNA samples. This innovation could lead to rapid discovery of new medicines and biomarkers, revolutionizing the field of functional genomics.
Researchers at the University of Oxford have discovered that cancer cells manipulate a natural cell process called nonsense-mediated decay (NMD) to promote their survival. By understanding how NMD affects different types of cancer, scientists may be able to develop new treatments and therapies to control tumour growth.
Researchers at Caltech have developed two new viral vectors that can deliver genetic cargo to neurons in the central and peripheral nervous systems. The vectors, AAV-PHP.eB and AAV-PHP.S, can reach their targets via the bloodstream and are customizable for gene therapy applications. They offer a significant improvement over existing me...
Scientists at Tokyo Institute of Technology create liposomes with a DNA-based skeletal support, allowing them to withstand osmotic pressure and maintain their structure. This innovation enables controlled release of entrapped compounds and opens up new possibilities for drug delivery and cosmetics.
Researchers at the University of Wisconsin-Madison have discovered a new way that legumes, including peanuts, produce an essential amino acid called tyrosine. The team found that a single mutation in a plant enzyme is responsible for this unique pathway, which could lead to increased production of morphine and other valuable chemicals.
Researchers found that high suPAR protein levels combine with common genetic mutation to trigger disease onset and define rate of progression. The study used large cohorts of black patients with genetic risk factors for chronic kidney disease and found that plasma suPAR levels predict renal function decline.
Karin Heineman, a seasoned science communicator, emphasizes the importance of capturing underlying stories and emotions in scientific discoveries. She shares her expertise on how to effectively convey complex ideas through video, highlighting its potential to impact audiences beyond the lab.
A novel compound, FA-M-β-CyD, induces mitophagy-mediated antitumor activity by targeting FR-α-expressing tumor cells. It increases mitochondrial transmembrane potential and ROS production, leading to cancer cell death. The compound shows promise as an anticancer drug with minimal side effects.
A research team measured chimpanzee muscles and found a modest performance advantage, contrary to popular accounts of chimp 'super strength'. Chimpanzees have twice as many fast-twitch fibers, but this translates to only about 1.35 times more dynamic force and power output than humans.
Researchers at University College London and Oxford have developed magnetic implants to control eye movement, improving symptoms of nystagmus for the first time. The study, published in Ophthalmology, shows that the implants can correct oscillopsia and improve visual acuity.
A new microscope can rapidly image tumor margins during surgery, reducing the need for second surgeries. It also enables pathologists to view tissue in 3D, potentially leading to improved diagnosis and treatment decisions.
A pilot randomized trial found that about 22% of generally healthy adult patients with whole genome sequencing results had a previously unrecognized variant with potential risk for a rare Mendelian disease. However, only about 4% had a clinically relevant abnormality related to a variant.
Researchers at MIT's CSAIL have developed a system of quadcopter drones that can both fly and drive through urban environments with ease. The drones, equipped with wheels on the bottom, can navigate around obstacles in both air and ground modes, making them ideal for transporting objects or rescuing people in disaster zones.
A study reveals the importance of formal education, screening, and treatment protocols for emergency department personnel in identifying and rescuing human trafficking victims. The project increased the identification of other forms of abuse, such as domestic violence and sexual assault.
Scientists develop a simple method to make graphene oxide smart, allowing it to bend in response to changing humidity without external power. They created spider-like crawlers and claw robots that move in response to environmental changes.
Researchers found that taking a photo of sentimental items before donating them increases the likelihood of getting rid of clutter. The study suggests this strategy helps people keep memories alive while parting with possessions, benefiting nonprofits and recipients. Participants were more willing to donate items that still held sentim...
Researchers identified a network of genes expressed in myeloid cells that contribute to Alzheimer's disease pathogenesis. A protein called PU.1 regulates this gene network, which may hold promise for therapeutic targets.
A new study from Bentley University and Tufts University tracks the progress of developing new therapies for cardiovascular disease, finding that median time to first approval is greater than 40 years. The authors propose accelerating drug development by optimizing basic research and synchronizing it with growth.
Researchers discovered a biological pathway that allows plants to produce acetate when water is scarce, increasing drought tolerance. Vinegar treatment increased plant survival rates by over 70% in various crops, offering a promising, non-genetically modified solution.
Researchers at Oregon State University have identified a new therapy target for gonorrhea, an enzyme crucial for bacterial respiration in biofilms. A peptide that inhibits this enzyme's activity shows promise in killing the bacteria without promoting resistance.
Researchers found that all colors of light triggered unpleasant physiological sensations in patients with migraines, while green light had a neutral effect. Migraine sufferers reported intense emotional responses to light exposure, including anger and sadness.
Research found that sleep-deprived couples experience increased inflammatory markers when arguing, with a 10% rise for every hour of lost sleep. Getting enough sleep can help mitigate this effect and reduce the risk of chronic illnesses.
A computer model developed by neuroscientists at the University of Chicago can simulate the entire nerve response of the hand to any pattern of touch stimulation, providing insights into how the nervous system perceives touch. This tool will enable scientists to create realistic touch sensations in bionic hands for amputees.
A new study by UBC sleep expert Wendy Hall found a correlation between thoughts about infant sleep and parental depression. After a sleep intervention, parental depression lifted significantly, with a notable reduction in mothers' (30%) and fathers' (20%) high depression scores.
Researchers developed a sound-insulating curtain system that can reduce outside noise levels by up to 26 decibels. The system uses multiple layers of fabrics with different acoustical impedances attached to aluminum tracks, creating variable zones for private conversations or meetings.