Researchers found that the nucleus accumbens recruited by cocaine use are largely distinct from those recruited by sucrose, offering a potential solution for treating substance use disorders without affecting biologically adaptive seeking of reward. The study identified specific neuronal ensembles and cell types involved in each response.
A machine-learning algorithm detects early stages of Alzheimer's disease using functional magnetic resonance imaging (fMRI). The algorithm uses a convolutional neural network (CNN) to analyze fMRI data and classify patients as healthy, mild cognitive impairment, or Alzheimer's disease.
A University of Illinois Chicago researcher analyzed over 13.9 million COVID-19-related tweets to track public concerns worldwide. The study found negative sentiments towards the pandemic's impact on economies and healthcare sectors until March 2020, when optimism about economic recovery grew.
Researchers found that nearly 19% of US children and adolescents are obese, with severe obesity rates higher in Hispanic and Black youth. Bariatric surgery is a safe and effective option for treating these patients, but many are not being offered the treatment due to lack of access.
Scientists have discovered that baking soda can reprogram T cells to resist cancer cells' immune-suppressive effects. The treatment has reversed the suppressive effects on T cells in 10 transplant recipients with relapsed AML.
A new article and video from Massachusetts General Hospital provide step-by-step guidance on performing a tracheostomy to facilitate ventilator weaning in COVID-19 patients, reducing aerosol transmission risk. The procedure can decrease sedating medication use and allow family members to interact with loved ones.
Research from Washington State University found that adolescent males associate cannabis use with improved sexual activity, leading them to express intentions to use marijuana. In contrast, female peers were less swayed by similar messages.
Researchers at Tokyo University of Science create a novel approach to reducing chromium toxicity in wastewater through the chemical reaction of reduction, employing photocatalysts like titanium oxide and copper complexes. The method has high efficiency and is reusable, providing a promising technology for environmental regulation.
A new study published in The BMJ provides updated estimates of the increased risks of breast cancer associated with hormone replacement therapy (HRT) use. For longer-term HRT use, the increased risks are lower than previously reported, while a more pronounced decline in risk is observed once HRT has stopped.
Researchers at Ames Laboratory discovered a correlation between broad diffraction patterns and high-quality graphene, challenging conventional wisdom. The discovery has implications for reliable quality control of 2D materials in manufacturing environments.
Researchers at UT Southwestern Medical Center found that high sugar diets worsened colitis symptoms and altered the gut microbiota in mice. The study suggests that consuming glucose from high fructose corn syrup may damage the protective mucus layer in the large intestine, increasing the risk of intestinal inflammation.
Researchers at ETH Zurich found a link between the increased availability of high-dose paracetamol tablets and a rise in poisoning cases. The study suggests that limiting pack sizes and promoting lower doses could help minimize accidental overdoses.
A study published in the International Journal of Stroke found that COVID-19 patients who develop stroke are on average 4.8 years older than those who do not. Pre-existing conditions such as high blood pressure, diabetes, and coronary artery disease also increase the risk.
A new study found that burning biomass fuels like wood and crop residues contributes to 32% of premature deaths due to inhaling fine particle pollutants in China. Residential energy use, especially indoor emissions, pose significant health risks, with indoor PM2.5 concentrations being 3 times higher than outdoor air concentrations.
The new multi-drone imaging system coordinates multiple autonomous drones to produce detailed visual surveys of penguin colonies, reducing survey time from two days to two-and-a-half hours. The system uses a route planning algorithm that prioritizes efficient coverage and maintains a safe distance from the ground.
Researchers found that alveolar macrophages fail to produce interferons when infected with SARS-CoV-2, allowing the virus to evade detection by the immune system. This suggests that asymptomatic individuals may be spreading the virus without knowing it.
LaserNetUS, a high-power laser consortium including Institut National de la Recherche Scientifique, receives $18 million from the US Department of Energy. The funding will support user support and expand LaserNetUS operations for three years.
Researchers from Italy's INGV and University of Bristol create historical catalog to estimate frequency of violent explosive events and investigate temporal recurrence relationship between eruptions. The study suggests a 50% probability of another paroxysm within 12 months after a previous explosion.
A new open-source dataset has been created to provide county-level exposure numbers for tropical cyclones and human health. This tool will enable scientists to analyze multiple storms in different places and time periods, drilling down to see what happens in different health outcomes for people.
A new analysis identifies US states that make voting easiest and those that make it more challenging. States like Oregon, Washington, Utah, Illinois, and Maryland offer convenient options such as online registration, early voting, and mail-in voting.
Researchers captured the first ocean recordings of remoras hitchhiking on blue whales, revealing their refined skillset for navigating intense hydrodynamics. The study shows remoras select optimal regions, such as behind the blowhole, to reduce drag resistance and freely move around to feed and socialize.
Scientists at the University of Groningen designed a rotary motor powered by near-infrared light, overcoming a major limitation of previous designs. The motor uses an antenna to absorb two low-energy photons, which are then transferred to initiate movement.
A study led by University of Wyoming researcher Dulcinea Groff found that seabird populations in the South Atlantic are shifting their habitats due to climate change, with many species moving to new breeding grounds. The research also highlights the importance of nutrients from seabird guano for maintaining tussac grasslands.
New research highlights barriers to adopting insect-based food, including Western consumer acceptance and safety concerns. The larvae offer a high-quality protein source with zinc, iron, and calcium content comparable to meat.
A team of researchers discovered that the mammary basal cell lineage contributes to breast cancer heterogeneity, fueling the outgrowth of multiple aggressive tumor subpopulations. By activating a signaling pathway driven by protein kinase A (PKA), they can limit self-renewal potential and impede metastasis.
Researchers have developed a graphdiyne-based metal atomic catalyst that achieves high selectivity and yield in ammonia synthesis. The catalyst, which exhibits determined electronic and chemical structure, demonstrated remarkable performance in converting nitrogen to ammonia at ambient temperatures and pressures.
Researchers used fossil records to estimate extinction risk in marine bivalves, finding that many harvested species are widespread and tolerant of environmental changes. However, the study highlights the need for more complete data on human impact to inform conservation efforts.
Research found that over 90% of individuals with mild-to-moderate COVID-19 produce antibodies strong enough to neutralize SARS-CoV-2. The antibody response is relatively stable for at least five months, correlating with the body's ability to neutralize the virus.
A new model forecasts that strategically placing marine protected areas can improve fish populations and increase local catch. The research suggests that protecting an additional 5% of the ocean could boost future catches by 9-12 million metric tons.
A recent study found that young Finnish athletes experience higher rates of menstrual dysfunction compared to non-athletes. However, athletes reported lower levels of body weight dissatisfaction. The study suggests that low energy availability may contribute to menstrual dysfunction in young athletes.
New discoveries in Northern Spain's Aitzbitarte Caves depict a previously unknown artistic style, consistent with the Gravettian cultural complex found across Europe. The study reveals a more widespread and varied culture than previously thought, spanning over 25,000 years.
A study of young cichlid species in Nicaraguan crater lakes found that new species can arise within a few hundred years through the involvement of many genes. This contradicts previous theories suggesting that speciation is a slow process driven by simple genetic changes.
As people age, their motivation to learn declines. Researchers identified a brain circuit critical for maintaining this motivation and found that it can be boosted in older mice by reactivating the circuit, which was previously shown to suppress motivation.
Researchers found that corals with high levels of parasitic bacteria are more susceptible to disease, even when appearing healthy. This discovery provides crucial insights into coral restoration efforts in the Caribbean.
Researchers found that quitting smoking at any age reduces excess risk of premature death from cardiovascular disease by about 90%. Those who quit between ages 15 to 34 had about the same risk as peers who never smoked, while those who quit later had significantly higher risks.
Active individuals showed lower incidence of anxiety and depression compared to non-active individuals during the pandemic, despite reduced exercise. The study found a connection between physical activity, mental health, and sleep problems, but no difference in sleep quality among those who changed their exercise habits.
The Endocrine Society's Clinical Practice Guideline emphasizes the importance of evaluating high cholesterol and triglycerides in adults with endocrine disorders. The guideline provides recommendations for managing lipid abnormalities and cardiovascular risk in patients with hypothyroidism, menopause, and Cushing's syndrome.
A new study reveals ocean acidification is a present-day reality on the Great Barrier Reef, with CO2 levels rising 6% over 10 years. This accelerated trend confirms atmospheric CO2's influence on seawater CO2 levels, posing significant threats to coral growth and health.
A USC study analyzed over 240 million election-related tweets, finding thousands of bots posting about President Trump and his opponent, spreading right-leaning conspiracies like QAnon. The researchers also identified significant partisan divides among humans, with users retweeting bots' messages aligned with their leanings.
Researchers discovered that stem cells have smaller and weaker centromeres compared to differentiated cells. This finding highlights a possible mechanism for the errors in cell division that limit the potential of stem cells in regenerative medicine.
A research team at Hiroshima University has unveiled the mechanism underlying quantum direction and introduced a way to potentially control movement. By manipulating the coin flipping rate, the researchers found that some control can be achieved over the walker's trajectory.
A new paper examines AI's tension between benefits and costs, offering recommendations for marketers to create valued consumer experiences. The study provides a framework that conceptualizes AI as an ecosystem with four capabilities, focusing on the consumer experience of these capabilities.
A tiny brain device called Stentrode has been shown to help patients with upper limb paralysis text, email and even shop online. The device was implanted successfully in two patients with severe ALS and enabled them to complete daily tasks wirelessly.
Scientists used CRISPR interference to study virulence genes in a mouse model of pneumonia, observing surprising variability in disease progression. The results point to several genes as having important roles in pneumococcal infections, including the bacterial capsule genes and the gene for pneumolysin.
A strain of oral bacteria has been found to be associated with severe ulcerative colitis. The discovery offers new avenues for research into the prevention and treatment of IBD. Researchers believe that targeting the oral cavity could help reduce the load of the bacteria, potentially leading to new therapies.
A new study, funded by the National Institute for Health Research Public Health programme, investigates the impact of changing bar and club opening hours on health, crime levels, and emergency services in Scotland. The study aims to understand how later opening hours affect ambulance callouts, crimes, and public services.
A new article explains how chemistry can help develop materials necessary for fully autonomous vehicles, including efficient batteries and structural materials. Safety features such as sensors and nonstick coatings are also crucial to reducing maintenance and enhancing safety.
A chemist from RUDN University developed a silica-supported heteropolyacid system that can produce ethers from waste lignocellulose products, increasing their production efficiency by 4-10 times. This method reduces energy consumption and makes biofuel manufacturing cheaper.
The study identified over 3 million novel variants in African genomes, showcasing the continent's vast genetic diversity. It also revealed complex patterns of ancestral mixing and natural selection, shedding light on population history, environmental adaptation, and disease susceptibility.
Researchers found that infant gut microbial ecosystems develop unique patterns of stability, with changes influenced by diet and antibiotic exposure. The study used genomic tools to analyze massive amounts of genetic data and identified individual strains within single species of the gut microbiome.
The H-Man robot is a compact, affordable solution for post-stroke patients to practice intensive exercises at home or in community-based settings. Clinical trials show significant improvement in upper-limb mobility and long-term retention of learning.
The University of Surrey has developed a Multimodal Transistor (MMT) that can perform complex operations as simple circuits, overcoming long-standing challenges. The device's immunity to parasitic effects enables efficient analogue computation for AI, robotic control, and unsupervised machine learning.
Researchers develop new method to classify magnetic topological materials, identifying thousands of potential compounds with unique properties. This breakthrough could lead to significant advances in thermoelectric converters, quantum computers, and magnetic storage media.
Researchers found that certain types of nudges, such as social norming and information-based interventions, were more likely to fail. The study suggests that understanding the reasons behind these failures can help develop successful behavioral interventions.
A team of scientists has created the most detailed family portrait of black holes to date, analyzing gravitational-wave data from LIGO and Virgo detectors. The study reveals new clues about black hole formation and tests Einstein's theory of general relativity, passing all tests with flying colors.
The BlueSwell Incubator Program has selected its first cohort of six startups, which will receive grants and mentorship to support the development of innovative solutions for ocean health and sustainable industries. The program aims to bridge the gaps between innovators, industry experts, and venture communities, with a focus on commer...
Researchers compare microstructure and composition of five Mexican dinosaur eggs to determine the unknown eggshell's species. The study finds that the unknown sample closely resembles ornithopod shells, supporting hypothesis it belongs to the hadrosaur family.
Researchers at Arizona State University have generated a global coral reef extent map using advanced AI, predicting the location of shallow reefs with nearly 90% accuracy. The map was created by analyzing thousands of satellite images and is now available through the Allen Coral Atlas.
Researchers have found a way to circumvent a centuries-old theory that allows them to effectively cancel magnetic fields. This breakthrough has practical benefits for various fields like medicine, quantum technology, and neuroscience.
New research by the Dian Fossey Gorilla Fund and University of Exeter reveals that mountain gorilla groups are more likely to be friendly with each other when they meet again, even if they had split over a decade earlier. This behavior is similar to human friendships and may help the group share limited space and resources.