Researchers have found traces of Roman-era pollution in the ice of Mont Blanc, revealing significant atmospheric pollution from heavy metals. The study provides a record of atmospheric conditions in ancient Rome and sheds light on the impact of ancient emissions on the present-day environment in Europe.
Researchers developed a novel machine-learning approach to discover an additional mechanism by which some antibiotics kill bacteria. This secondary mechanism involves activating the bacterial metabolism of nucleotides necessary for DNA replication, leading to increased energy demands and toxic byproducts that contribute to cell death.
Researchers at Northwestern University have identified the enzyme responsible for methane-methanol conversion, which catalyzes the reaction at a single copper ion site. This discovery could lead to the development of new, human-made catalysts that convert methane to methanol with high efficiency.
A Boston University School of Medicine study found that wearing tight-fitting jeans or pants four or more times a week doubles the risk of vulvodynia, while removing hair from the mons pubis nearly triples it. The condition affects an estimated 16% of women over their lifetimes.
A study by the University of Granada found that white people have difficulty identifying genuine smiles on black faces, whereas they can accurately detect such differences among other whites. This bias is linked to racial stereotypes and a lack of eye contact with individuals from different groups.
A recent study published in The American Journal on Addictions found a significant link between childhood maltreatment and e-cigarette use during young adulthood. Childhood maltreatment was also associated with negative urgency, leading to impulsive behavior when distressed, which contributes to increased e-cigarette use.
Researchers at Penn State have found that gravitational forces within protoplanetary disks can cause super-Earths to migrate closer to their host star. This simulation shows that chaotic interactions among planets and the gas disk can lead to synchronized orbits, resulting in super-Earths being pushed towards the star.
A new model maps a country's progress towards measles elimination onto a 'canonical path,' which helps tailor vaccination efforts. The path reflects birth rate and vaccination coverage, guiding countries to adapt their control efforts as they progress towards elimination.
New observations using NASA's Spitzer Space Telescope reveal that some of the earliest galaxies in the Universe were significantly brighter than anticipated. The excess light suggests that these galaxies released high amounts of ionising radiation, which may have played a key role in the Epoch of Reionisation.
A Rutgers discovery identified a siesta-suppressing gene in fruit flies that helps creatures balance the benefits of napping against getting important activities done during the day. The 'daywake' gene regulates behavioral flexibility, allowing flies to seek food or mates when temperatures are cool.
Researchers identify predictable changes in global measles dynamics, enabling tailored vaccination and public health programs. Countries along the 'canonical path' experience declining disease incidence with increasing yearly variability, guiding informed control efforts.
Researchers found that fully linked networks between social actors and ecological resources improve ecological conditions. Building community capacity through communication and trust can also lead to better outcomes for coral reef fisheries.
Researchers discovered a previously unknown visual system allowing color vision in fish living beyond sunlight's reach. Fish such as the silver spinyfin possess multiple rod opsins, sensitive to different wavelengths, potentially used for detecting specific prey species through bioluminescent cues.
Researchers are conducting a multi-center study to determine which medication, azithromycin or roflumilast, is more effective in reducing the risk of death and hospitalization in people with COPD. The clinical trial will enroll over 3,000 patients at 30 centers across the US.
Researchers found that robopets increase social interaction among residents, family members, and staff, promoting conversation and stimulating memories. The robotic animals also offer comfort and joy to those who interact with them.
A new standardized measurement tool has been developed to track outcomes in children with pediatric facial palsy, a condition that can impact various aspects of their life. The tool assesses factors such as facial appearance, oral continence, speech, and health-related quality of life.
The LATITUDE study evaluates the effectiveness of a combination of two experimental injectable formulations of antiretroviral drugs in managing HIV infection. Volunteers will receive either conventional oral ART or long-acting injectable therapies, with the goal of achieving durable viral suppression and improved treatment adherence.
A study found that varying question formats can significantly affect the proportion of Americans who believe in human-caused climate change. The researchers surveyed over 7,000 people and found that the acceptance rate ranged from 50% to 71%, depending on the format used.
In Arabidopsis thaliana, the location of proteins within a cell and the position of the cell itself play crucial roles in determining cell type. The study found that ATML1 protein accumulation is inhibited in internal cell layers, leading to epidermal cell differentiation. This post-transcriptional regulation enables plants to form a s...
Portland State University researchers are helping to develop a mobile app called Trans Women Connected aimed at reducing HIV among transgender women. The app will offer effective HIV and sexual health messaging tailored to the community's specific needs, including social support networks and trans-friendly healthcare resources.
Researchers observed Herring Gulls developing a complicated behavior to 'skin' sea creatures, making them safe to eat. The birds grasp the sea squirt's tunic in their beaks, shake it to loosen the soft edible inner body, and then switch to hold and shake again until the inedible outer layer is removed.
A new study reveals that damage to mitochondria leads to an increased production of osteoclasts, which break down bone. This process is triggered by stress signaling in cells, leading to greater rates of bone resorption and potentially contributing to osteoporosis.
A new study found that children with inflammatory bowel disease, including ulcerative colitis and Crohn's disease, have a higher risk of developing cancer and dying early compared to the general population. The study suggests that cancer surveillance and mental health assessment are crucial for young patients with these conditions.
Researchers discovered microRNA-like RNAs that regulate the transition from saprophytes to pathogens in Arthrobotrys oligospora. The study provides new insights into understanding fungal adaptation and potential bio-control agents.
Researchers identified the retrosplenial cortex as the brain region responsible for value-based decision-making, which is crucial for neurological conditions such as schizophrenia and dementia. The study used data from tens of thousands of neurons to show that the RSC maintains subjective value information until the next experience.
Researchers at Washington State University found that an electronic tongue is more accurate and effective than human taste buds in tasting spicy foods. The e-tongue can handle high concentrations of heat without losing accuracy, allowing for faster and more precise testing of new products.
Researchers at Morgridge Institute for Research have successfully grown smooth muscle cells from pluripotent stem cells using a novel growth factor called RepSox. This breakthrough reduces the risk of intimal hyperplasia, a common cause of graft failure in bypass surgery.
Tropical Cyclone Lili forms in the Southern Indian Ocean, with NASA-NOAA's Suomi NPP satellite capturing its formation. The storm has maximum sustained winds near 40 knots (46 mph/74 kph) and is expected to strengthen slightly before weakening towards Timor.
Researchers at the University of Kent found that virtual reality helped patients recall old memories, providing positive mental stimulation. The study also showed improved social interaction between patients and their caregivers, as well as a boost in mood and motivation.
Scientists studied the impact of fragmentation on Dahl's toad headed turtle populations in Colombia, finding restricted gene flow and genetic erosion. They recommend gene flow restoration via genetic rescue to counteract these threats and provide guidance for this strategy.
The dengue virus uses nonstructural protein 1 (NS1) to replicate in infected cells, with a key role in viral RNA replication and formation of the membranous replication organelle. A novel interaction between NS1 and NS4A-2K-4B is required for viral RNA replication but not for replication organelle formation.
A VA-led study found that veterans and service members with combat-related mild traumatic brain injuries have higher levels of abnormally fast brain waves in regions critical for consciousness. This discovery may help target brain-stimulation therapies for cognitive deficits associated with TBI.
A new study using FlashTag technology and single-cell RNA sequencing identified a core set of temporally patterned genes driving the shift in fate of neural progenitor cells. These molecular 'birthmarks' are transmitted from mother to daughter cells, influencing the types of neurons they will become.
Researchers found a connection between intrahepatic cholestasis of pregnancy and non-alcoholic fatty liver disease, suggesting impaired bile acid metabolism as a potential link. Women with ICP were 5.7 times more likely to have a diagnosis of fatty liver disease than controls.
A new study by American Psychological Association found that anger is more harmful to older adults' health than sadness. Anger was associated with higher levels of inflammation and chronic illness, particularly in those over 80 years old. In contrast, sadness did not contribute to inflammation or chronic illness.
Researchers at UNC will receive up to $10.7 million to develop a chlamydia vaccine, which could help women who suffer from infertility and chronic pelvic pain due to the infection. The project aims to identify specific T-cell and antibody responses that limit infection and inform antigens and adjuvants for vaccine development.
Researchers found that adults with lupus who experienced adverse childhood events report higher disease activity, depression, and poorer overall health. The study suggests that prevention of ACEs and promotion of resilient relationships may help improve outcomes for patients.
A new study at the University of Utah Health found that drug-induced death is the most common cause of pregnancy-associated death in Utah. Postpartum women who have previously or currently struggle with substance abuse are at greater risk of overdosing.
A meta-analysis of 14 studies involving 130,994 patients found that pre-diagnosis statin use reduced the risk of early death from any cause and cancer by 15% and 18%, respectively. Post-diagnosis statin use also showed lower mortality rates
A new study finds that a third of people taking statin medications in Indiana do not reach a safe level of LDL-C, putting them at increased risk for cardiovascular disease events. Reducing their bad cholesterol levels could save $1,455 per person and avoid 1,173 cardiovascular disease events.
New research suggests that sudden and severe climate change caused widespread population decline across South America between 8,000 to 6,000 years ago. The study found that unpredictable rainfall levels had a negative impact on early populations until around 6,000 years ago.
Researchers have discovered a new type of drug that targets the genetic weakness in 'diffuse intrinsic pontine glioma', a devastating childhood brain cancer. The treatment also shows promise for patients with stone man syndrome, a rare genetic disease where muscles and ligaments turn to bone. Clinical trials are expected to begin in 2021.
A study found that parents of children with cancer frequently search for health-related information, including ways to support their child and logistical issues. The study suggests that healthcare providers should consider these day-to-day concerns when offering family education and support.
Theoretical and experimental investigations confirm the Marcus hopping model for electronic transport in organic films. The study verifies the 'inverted Marcus regime' where higher voltage generates lower current, improving understanding of organic devices.
Researchers have identified eight protein biomarkers that enable accurate differentiation between endometrioid and high-grade serous ovarian carcinomas. This breakthrough could lead to more precise diagnosis and tailored treatment for patients, reducing the risk of undertreatment or overtreatment.
A study by Fertility Centers of Illinois found that children conceived through assisted reproductive technology (ART) achieve similar developmental milestones as those conceived naturally, with a slight advantage at 12 months. The study analyzed data from over 1,800 parents and showed no significant impact on childhood development.
Bioethicists investigate body donation after medically-assisted death, highlighting ethical challenges for institutions and potential benefits for education and research.
Research finds that adult cases with respiratory symptoms are more likely to transmit the virus, highlighting the importance of targeted interventions. Contacts exposed to respiratory secretions are also at higher risk, emphasizing the need for protective measures among spouses and caregivers.
Researchers at DGIST developed a graphene-based transmission line with improved electron speed, contributing to faster processing speeds in semiconductor and communication devices. The team increased device concentration inside graphene, reducing resistance and enhancing electrical characteristics.
Physicists uncover secrets of conching, a 140-year-old mixing technique that creates smooth chocolate texture by breaking down ingredients into finer grains. The study may lead to lower-fat chocolate and more energy-efficient manufacturing processes.
Researchers from MIPT and Ioffe Institute discover Weyl semimetals as ideal gain media for lasers, eliminating Auger recombination. This breakthrough could lead to more efficient lasers in the visible and infrared range, and even terahertz applications.
The DGIST-ETH Micro Robot Research Center won 6 awards, including 3 golds and a special award from the Taiwan Invention Association, at The 47th International Exhibition of Inventions Geneva. The center's inventions featured innovative technologies such as magnetic control and video systems for surgical applications.
Researchers found buprenorphine office visits increased from 0.04% to 0.36% of ambulatory visits between 2004-2015, with 13.4 million visits from 2012-2015. Buprenorphine prescriptions were more common among white patients than those of other races/ethnicities.
A recent study found that Australian potato cyst nematodes have a single origin, suggesting effective quarantine control measures. Historical specimens were analyzed using modern technologies to determine the pest's introduction and spread in Victoria, Australia.
Researchers found that adaptive cruise control systems can create phantom jams by slowing down too much, even when the vehicle ahead speeds up. The study suggests that designing ACC systems with traffic flow in mind is crucial for alleviating jams and improving traffic efficiency.
Researchers evaluated clinical and radiological features of fibro-adipose vascular anomaly (FAVA), a soft-tissue vascular lesion. FAVA is characterized by unique clinico-radiological features, including a painful intramuscular lesion in extremities, progressive heterogeneous enhancement on MRI, and associated phlebectasia.
A team of researchers from the Universities of Münster, Oxford, and Exeter have developed a light-based hardware that mimics the behavior of neurons and synapses in the brain. The chip can process data much faster than traditional computers, enabling applications such as medical diagnoses and cancer cell identification.
A large study found Australian doctors are overprescribing flu antivirals to patients at low risk of complications, putting them at risk of unnecessary side effects. The indiscriminate use of antivirals can lead to increased risk of antimicrobial resistance, researchers say.
A study by University of California San Diego researchers found that optimism, wisdom, and social connections protect against declining cognitive and physical health. Conversely, loneliness increases the risk of mental decline. The findings can inform new interventions for aging populations.
Scientists have developed an adsorbent membrane that can remove pharmaceuticals and personal care products from water, a problem exacerbated by increasing use of these substances worldwide. The membrane, coated with porous aromatic frameworks, has shown high capacities for removing three model PPCPs and was recyclable.