According to research published by the American Psychological Association, spending between one and two hours a day on math and science homework is ideal for adolescents. Students who do their homework alone score higher than those who need help, highlighting the importance of autonomy in learning.
Researchers from the Malaspina Expedition found that dissolved organic carbon (DOC) in the deep ocean is not degraded by bacteria due to low concentrations of degradable compounds. The study provides new insights into the regulation of the carbon cycle and global climate.
Researcher David Queller and colleagues tested an alternative mathematical model to inclusive fitness theory, finding it equivalent in predictions. The model's assertions were disputed, with Queller arguing that varying relatedness undermines the Harvard authors' claims about eusociality.
A recent study found that sudden growth of Burkholderia multivorans preceded periods of acute illness in a CF patient. The team used an extensive collection of lung sputum samples to analyze the bacterial community, providing critical context for their research.
A new study reveals a blood test that measures circulating tumour cells can predict which men are benefitting least from prostate cancer drug treatment after just 12 weeks. The test may allow doctors to switch patients to alternative treatments earlier, speeding up clinical trials and improving survival rates.
Researchers apply compressed sensing to simplify chemistry calculations, reducing the need for expensive high-accuracy calculations. The technique achieves results three times faster than traditional methods, showing promising potential for a 'virtual laboratory' in chemistry research.
Researchers discovered a gene called Plexin D1 that controls fat storage and cell shape, which is associated with health risks. Zebrafish without the gene had less abdominal fat and were protected from insulin resistance.
India's TB epidemic is worsened by the failure of its Revised National Tuberculosis Control Program to engage the private sector, argues Dr. Zarir Udwadia. The program needs to provide free diagnosis and treatment to all patients, regardless of sector, to control the spread of TB.
A newly discovered frog species, Pristimantis mutabilis, has the ability to change its skin texture in minutes to blend into its surroundings. The frogs were found in Ecuador's cloud forest and their shape-shifting capability challenges traditional methods of species identification.
At least 30 dogs in England have died from a mysterious kidney disease, with evidence found in 15 breeds including English springer spaniel, Labrador retriever and cocker spaniel. The disease is believed to be Alabama rot, which causes skin lesions and kidney failure.
Researchers found that blocking two pathways, PGE2 and PD-1, boosts T-cell function and enhances viral control in mice with chronic infections. Celecoxib, a non-steroidal anti-inflammatory drug, was also shown to improve T-cell responses.
A study by American Society for Horticultural Science researchers recommends specific water content thresholds for improved irrigation management in Gardenia jasminoides. The results show that applying water only when needed leads to efficient irrigation with minimal leaching, resulting in better plant growth and root establishment.
Researchers from UEA and international partners utilized wave turbulence theory to tackle the Fermi-Pasta-Ulam problem, a 60-year-old numerical experiment. They successfully predicted long thermalization timescales and corroborated their findings with extensive simulations.
Researchers have found that people with cystic fibrosis have limited ability to uptake and use oxygen in their muscles, leading to exercise intolerance. The study uses Near Infrared Spectroscopy (NIRS) to evaluate skeletal muscle oxidative capacity in patients with CF, providing a non-invasive method for measuring muscle function.
A new study by UT Southwestern Medical Center found that women who have given birth to four or more children are more likely to experience cardiovascular changes that can indicate heart disease. Researchers compared data from the Dallas Heart Study and found a U-shaped association between the number of births and heart disease risk.
A study published in Science Advances reveals that co-infection with two parasite species can reduce the severity of a more lethal disease, East Coast fever. The researchers propose using a mild parasitic infection as a vaccine alternative, which could be safer and less costly.
A team of researchers found that the success of marine diatoms over the last 40 million years is linked to increased continental erosion. Diatoms consume massive amounts of carbon from oceans daily, producing organic matter that helps reduce atmospheric carbon dioxide levels.
Researchers developed a new technique to visualize and track molecules in real-time, revealing their dynamic behavior in living cells. This provides a more realistic picture of how molecules move within cells, shedding light on previously hidden factors involved in nanocrystal assembly.
Researchers discovered that saccharin binds to and deactivates carbonic anhydrase IX, a protein found in some aggressive cancers. This finding opens up the potential to develop novel anti-cancer drugs derived from common condiments.
The inaugural issue of ACS Central Science features a range of articles highlighting the importance of chemistry in bridging physical and life sciences. Key findings include advances in analytical chemistry enabling real-time monitoring of genetic and environmental factors, and synthetic chemistry's role in delivering genetic treatments.
A novel deuterium-containing sigma-1 agonist, C-10068, demonstrated anti-seizure and anti-inflammatory effects in a preclinical model of traumatic brain injury (TBI). It affected multiple neurochemical pathways, including sigma-1 receptors, which play a widespread modulatory role in the central nervous system.
A new study found that children who received the 4CMenB vaccine in infancy showed waning immunity to serogroup B meningococcal disease by age 5, despite receiving a booster dose at 3.5 years old. The researchers also reported lower rates of fever compared to younger children.
A team of geophysicists discovered the twin scars of two massive asteroid impacts in Central Australia, hidden deep within the earth's crust. The impact zones are estimated to be over 400 kilometers wide and are believed to have occurred millions of years ago.
Research tracked children's cardiovascular health from age 9 to 30 and found those exposed to parental smoking had a 1.7 times higher risk of carotid plaque in adulthood. Parents who smoked indoors or allowed smoke into their homes were at the highest risk.
A new study from the University of Alberta's Faculty of Medicine & Dentistry found that keeping a pain diary can have unintended consequences on patient recovery. Patients who kept diaries had slower recovery rates compared to those who did not.
The US Preventive Services Task Force finds that routine screening for thyroid dysfunction in nonpregnant, asymptomatic adults lacks sufficient evidence. In contrast, the American Diabetes Association recommends individualized treatment plans for patients with diabetes, taking into account factors like age, comorbid conditions, and car...
A majority of new general pediatricians are satisfied with their first job, with lifestyle and family considerations being the most important factor. The study found that over 80% of new pediatricians were very satisfied with their first jobs, with many wanting to spend more time in patient care and less in administrative tasks.
A new study finds that providing women with stress management skills during breast cancer treatment can lead to improved mood and quality of life many years later. Women who received the intervention had persistently less depressive symptoms and better quality of life up to 15 years post-treatment.
Researchers at Ohio State University have discovered a way to control heat with magnetic fields, using acoustic phonons to steer heat magnetically. This breakthrough opens up new possibilities for energy manipulation, potentially allowing for the control of sound waves as well.
The FARE Investigator in Food Allergy Awards support early and mid-career researchers expanding scientific understanding of food allergy through education and basic and clinical research. Recipients include Jessica O'Konek and Duane Wesemann, who will investigate nanoemulsion-based vaccines and the influence of microbial exposures on p...
Researchers discover roflumilast's mechanism of tolerance in severe COPD patients, highlighting potential for new therapeutics to improve efficacy. The study identifies key protein PKA-Cβ as a target for reducing unwanted PDE4B2 production.
Jessica Ruyle's innovative design allows communications systems to operate uninterrupted in the field, reducing performance and improving mobility. The new technology also has applications in police forces, firefighting teams, and commercial airplanes.
Research reveals anorexics' brain mechanisms that enable them to resist food temptations. Women recovered from anorexia nervosa exhibited decreased response to hunger and increased activation of cognitive control circuits.
Implementing video-based decision aids in urology led to fewer elective surgeries for benign prostatic hyperplasia and localized prostate cancer. Rates of surgical intervention declined by 32% for treated BPH patients and 27% for localized prostate cancer patients.
Researchers have identified two mechanisms by which a blood thinning agent interacts with a protein that acts as a natural HIV barrier, shedding light on the degradation of the virus. The study aims to develop drugs that inhibit HIV infection without harming langerin's protective function.
The new membranes show comparable performance to existing commercial membranes but with greater resistance to chlorine-containing chemicals. This technology can reduce operating costs and prevent decreased water flow due to biological fouling.
Researchers have analyzed the complete genome of Mycobacterium lepromatosis and compared it to that of the major leprosy-causing bacterium Mycobacterium leprae. The study reveals the origin and evolutionary history of both bacteria, offering new insights into their biology, global distribution, and possibly treatment.
Scientists have found that marijuana potency has tripled in some strains since legalization, with some samples containing up to 30% THC. However, many products lack cannabidiol, a compound with potential medical benefits, and contain contaminants such as fungi and solvents.
Research from the University of Waterloo and Perimeter Institute demonstrates that quantum mechanics can distinguish between cause-effect relations and common causes, unlike classical physics. This breakthrough enables a new approach to causal inference, potentially solving long-standing problems in science.
A previously undiscovered species of giant salamander-like amphibian was identified in southern Portugal, growing up to 2m in length and feeding mainly on fish. The discovery reveals that this group of primitive amphibians was more geographically diverse than previously thought.
A two-year study found that flower strips on farms in the UK increased common bumblebee populations by significantly boosting their numbers and nesting density. The research suggests that targeted agri-environment schemes can boost bee populations, particularly for common species, but may not benefit rarer species as much.
Researchers at Carnegie Mellon University developed a modular robot that can replicate the sharp turns of real sidewinder rattlesnakes. By analyzing the snakes' complex motion, they discovered how to change the phase and amplitude of two wave motions to achieve exceptional maneuverability.
A team of researchers, led by Yuri Lvov, has discovered that the key to thermalization in the FPU system lies in a gradual transfer of energy during coincidences of six modes. This nonreversible process leads to the irreversible transfer of energy and the eventual approach to thermal equilibrium.
A new report by the University of Manchester found that inadequate staffing and protocols contribute to suicidal deaths among mentally ill patients under observation. The study suggests that more experienced staff and improved observational practices are needed to reduce such incidents.
The UW nanolaser is built using a single atomic sheet of a tungsten-based semiconductor, which emits light efficiently and can be easily fabricated. This technology has the potential to revolutionize next-generation computing and optical communication by consuming less energy and enabling faster device performance.
Scientists at St. Jude Children's Research Hospital have identified key receptors that trigger the immune system to attack tularemia-causing bacteria, potentially leading to new protective treatments and vaccines. The discovery could also shed light on autoimmune diseases and cancers.
Researchers used genetic analysis to trace the source of infection in a British patient with multidrug-resistant tuberculosis (TB). The study found that the patient caught the infection from a healthcare worker who had worked in South Africa, highlighting the need for effective infection prevention measures.
Researchers found two ancient stars in Sculptor dwarf galaxy with unusual chemical content, suggesting a single supernova explosion may have seeded the gas cloud. This discovery provides an unprecedented view of the earliest history of another galaxy.
A randomized controlled trial aims to develop evidence-based treatment practices for primary ciliary dyskinesia, a rare respiratory disorder. Azithromycin may offer a potential maintenance prophylactic therapy for PCD patients, improving pulmonary exacerbation rates and quality of life.
A new study identifies N-acetyltransferase 2 as a key gene variant linked to insulin resistance, increasing the risk of type 2 diabetes and cardiovascular disease. Inhibition of NAT2 in a mouse model decreased insulin sensitivity, highlighting its role in complex diseases.
A new study from the University of Hawaii predicts that coastal erosion in Hawai'i will double by mid-century, threatening thousands of homes and infrastructure. The model takes into account historical changes and projected sea level rise, indicating that shorelines will retreat an average of 16-20 feet by 2050 and nearly 60 feet by 2100.
A new CU-Boulder study has found that mountain pine beetle epidemics do not significantly increase the risk of wildfires in Western US forests. Climate change and drought are considered the primary drivers of larger forest fires.
Research reveals pregnant women with severe sickle cell disease are six times more likely to die during or after pregnancy. Women with the most severe form of SCD face increased risks of high blood pressure, stillbirth, preterm delivery, and smaller-than-average infants.
New approach aims to enhance neuroplastic processes, including angiogenesis, neurogenesis, oligodendrogenesis and axonal sprouting to improve neurological recovery. Early clinical trials are underway for innovative drugs such as Glibenclamide, Minocycline and Statins.
Researchers at KAIST identify brain somatic mutations in the MTOR gene as the cause of intractable epilepsy. These mutations are specific to the brain and can lead to permanent disabilities and death. A targeted therapy using rapamycin may offer a solution, suppressing mTOR kinase activation to lessen epileptic seizures.
Archeologists discover that mobile and sedentary Maya groups co-existed and collaborated on construction projects, participating in public ceremonies. This finding challenges the idea that sedentary and mobile communities were separate.
A recent study published in the Journal of Sexual Medicine found that men who exercise more have better erectile and sexual function, regardless of race. Higher levels of physical activity were associated with improved scores for sexual function, including the ability to have erections and orgasms.
Researchers created a 3D map of the South Napa earthquake's impact using GPS and satellite readings, predicting ground shaking and estimating human and infrastructure impacts. The study could improve reaction time to deadly earthquakes, reducing fatalities and economic losses.
Researchers at National Jewish Health found a response in human cells consistent with vaccination response in mice, using a mutated insulin fragment. The finding suggests an immune response in humans could lead to a vaccine and treatment for diabetes.
The TSRI team found that a specific enzyme called ItpkB is crucial in maintaining healthy periods of inactivity in blood stem cells. Without this enzyme, HSCs become hyperactive, leading to anemia and other diseases. Researchers are now exploring the potential of targeting ItpkB to develop new therapies for these conditions.