New research reveals polar bears' metabolic rates remain high during summer ice melt, limiting their ability to conserve energy. The study suggests that as sea ice loss increases, polar bears are unable to adapt by entering a low-energy state, leaving them vulnerable to food shortages and reduced survival rates.
The newly discovered Rhombophryne longicrus is an unusually long-legged new species of frog from Madagascar that challenges the traditional burrowing behavior of its relatives. Genetic analyses reveal close relationships to another diamond frog species, highlighting concerns over extinction due to habitat destruction.
Researchers predict a new Little Ice Age may begin by 2030, with reduced solar activity leading to significant cooling of the Earth's atmosphere. This decrease in solar irradiance could result in severe winters and cold summers, similar to those experienced during the Maunder minimum in the 17th century.
A UCLA study found that the Sound Body Sound Mind curriculum tripled the percentage of students who passed California's standardized physical fitness test in under-resourced schools. The program increased students' confidence levels, enjoyment of physical activity, and knowledge about fitness.
A study published in the Financial Review shows that frequent portfolio rebalancing can significantly reduce trading costs, leading to higher risk-adjusted returns. Investors can apply these strategies to existing portfolios with ease, reducing costs by up to 90% and improving investment outcomes.
By analyzing blood flow patterns, researchers have identified 13 main brain networks that work together and can be used to diagnose neurological disorders like Alzheimer's. The study provides new insights into how the brain organizes itself and sets the stage for early diagnosis and treatment.
Researchers have developed a new catalyst for selective oxidation of methanol to dimethoxymethane, achieving high conversions and selectivities under mild conditions. The optimized catalyst, V2O5/TiO2-Al2O3, exhibits superior performance compared to traditional methods.
Scientists at Princeton University have discovered Weyl fermions, a massless particle theorized 85 years ago. The particle could enable nearly free and efficient flow of electricity in electronics, leading to greater power for computers.
A research team from the University of Lomé in Togo identified 17 species of the Pteridaceae fern family, including one first recorded in the country. The study provides a detailed identification key for all species, including new records and synonyms.
Researchers found that mosquitoes primarily use smell to detect CO2 plumes from 10-50 meters away, then switch to visual cues as they get closer. Visual and thermal sensory information are combined to create a spatial map of the host's location, allowing mosquitoes to pinpoint their target.
A clinical trial found that exercising 300 minutes per week reduced total body fat and abdominal fat in postmenopausal women, with greater effects seen in obese women. The study supports the recommendation for postmenopausal women to exercise at least 300 minutes/week for cancer prevention.
Hurricane Dolores is a category 3 hurricane with maximum sustained winds near 115mph, affecting Mexico's Revillagigedo Islands and generating rough surf. The storm is forecast to weaken gradually over the next 24 hours before moving into colder waters.
A study published in Food Quality and Preference found that women tend to buy fragrances for men, suggesting a desire to influence their partner's scent preferences. In contrast, women are less likely to share or gift fragrances with other women, citing concerns about negative connotations.
Tradable Energy Quotas (TEQs) are a policy framework that addresses the bind between climate science and political reality. By implementing a quantity-based energy quota system, TEQs offers an equitable and expeditious way to bridge the gulf between climate ambition and public support.
Lithium chloride has been shown to prevent cartilage degradation and loss of mechanical integrity associated with osteoarthritis. This breakthrough finding offers a novel potential treatment option for the devastating condition affecting over a third of people over 45 in the UK.
Researchers discovered that a plant hormone, salicylic acid, acts as a 'bacterial bouncer' below ground, sculpting the microbiome surrounding a plant's roots. This finding suggests that salicylic acid is required to assemble a normal, commensal root microbiome.
A worldwide study found a consistent biological rule governing the relationship between plant biomass and species diversity in grassland ecosystems. Plant species diversity is generally greatest at intermediate levels of plant biomass. The research has implications for managing and conserving grassland biodiversity globally.
Columbia University's Mailman School of Public Health notes that more efficient research methods are needed to continue scientific progress. Dr. Muennig's project demonstrates the potential for automation in public health research, reducing costs by over 75%.
Researchers found that existing malaria infections in mosquitoes facilitate replication of secondary infections, leading to higher parasite loads. This could disproportionately contribute to malaria transmission, especially if control measures focus on reducing mosquito feedings.
A new study published in Social Science & Medicine proposes taxing sugary drinks based on their calorie content to encourage healthier choices. This approach could lead to a reduction in obesity rates and an increase in the consumption of low-calorie alternatives.
RapidScat data showed the strongest winds in Tropical Storm Halola were located in its northeastern quadrant, reaching speeds of up to 62mph. The storm is expected to strengthen into a typhoon by July 17 and pass northeast of Iwo To island, Japan, by July 21.
Whipple, a doctoral student at the University of Minnesota School of Nursing, was awarded the NHCGNE Patricia G. Archbold Scholar Award to support her research and career development. The award aims to increase the cadre of academic geriatric nurses and build leadership capacity in the field.
Researchers at Berkeley Lab developed a new technique called SINGLE that provides 3D images of individual platinum nanoparticles in solution. This allows for the study of their structures and properties, which is crucial for applications in renewable energy, catalysis, and more.
Researchers found a new treatment approach for blood clots that allows patients to go home the same day, reducing hospital stays and costs. The treatment, rivaroxaban, also reduces recurrent thrombosis and bleeding rates.
A new study found that nearly all people in Chennai, India have been exposed to dengue and 44% to chikungunya, but only a small percentage report symptoms. The research highlights the need for better awareness and control measures to combat these mosquito-borne diseases.
Researchers found that mosquitoes employ a razor-sharp sense of smell to detect warm-blooded prey, triggering vision and other sensory systems. The team used wind tunnels to study mosquito behavior, observing how carbon dioxide triggers a strong response in the insects.
Researchers found that human screams occupy a reserved chunk of the auditory spectrum and activate a range of acoustic information. Screams have a property called roughness, which refers to how fast a sound changes in loudness, making them more terrifying.
Researchers at Yale School of Medicine have developed a stem cell study that could help predict autism spectrum disorder and identify new drug targets. The study used skin cells to generate simulated brain organoids, revealing gene expression and developmental abnormalities in autism.
Researchers have discovered a way to expand metal matrix syntactic foams applications to autos, trains, ships and others requiring lightweight structural components that retain strength when bent or compressed. The new sandwich composite increased stiffness and offered high energy absorption.
Researchers create remote controlled, next-generation tissue implant that allows neuroscientists to inject drugs and shine lights on neurons deep inside the brains of mice. The device has potential for mapping brain circuit activity and understanding disorders like stress, depression, addiction, and pain.
A new multispectral microscope has been successfully demonstrated, enabling rapid and data-rich biomedical imaging. The instrument produces a continuous series of datasets revealing the presence of multiple colors at each point in a biological sample, revolutionizing pharmaceutical research.
Researchers developed a wireless device implanted in mice brains that can deliver drugs via remote control. The technology targets specific brain circuits, promising fewer side effects for neurological disorders.
A pilot study in Parkinson's disease suggests that remote recruitment and conduct of research visits is feasible and well-received by participants. The study leverages direct-to-consumer genetic testing and telemedicine to diagnose and treat diseases, potentially increasing participation in clinical research and accelerating diagnosis.
A Phase I research study is underway to develop a vaccine that could prevent recurrence of some childhood cancers in patients who have relapsed after surgery, chemotherapy and radiation. The trial has enrolled three patients so far and aims to stimulate the immune system to attack specific tumor proteins.
Researchers at Rice University deciphered how individual neurons predict behavior in perceptual tests, finding that neurons often share the same information. The study explains a long-standing paradox in neural activity and has implications for understanding neurological disorders such as Alzheimer's disease.
Researchers find Weyl points, predicted by Hermann Weyl in 1929, in photonic crystals, opening a new area of photonics. The discovery paves the way for new photonic phenomena and applications, including angularly selective materials and powerful single-frequency lasers.
A team of physicists has confirmed the detection of Weyl points, a kind of massless particle predicted by physicist Hermann Weyl in 1929. The finding was made possible by a novel use of a photonic crystal material, which could lead to new kinds of high-power single-mode lasers and other optical devices.
A new study by David Moorman and Gary Aston-Jones found that neurons in both dorsal and ventral prefrontal cortex work together to control behavior, rather than separate areas controlling 'going' and 'stopping' actions.
The structure of Oskar's two domains has been solved, enabling researchers to understand how the protein functions in developing reproductive cells. The OSK domain binds to RNA, while the LOTUS domain interacts with an enzyme called Vasa helicase, which is crucial for germ plasm formation.
A recent study reveals that eating habits play a crucial role in the weight gain of overweight children. The researchers found that children who are triggered by food and eat when they are full tend to have a steeper BMI curve. In contrast, physical activity and TV viewing do not explain why some children's BMI increases more than others.
Researchers at Scripps Research Institute aim to suppress HIV in latently infected cells using a novel antiviral target and a molecule called didehydro-Cortistatin A. The new approach has the potential to reduce the size of the latent reservoir pool of HIV.
Researchers at Australian National University trained fairy wrens to recognize unfamiliar alarm calls and flee when threatened, demonstrating birds' ability to eavesdrop on other species. This breakthrough could aid in training captive animals to detect danger signals before release.
A new study will examine the relationship between family stress, parenting behaviors, and early childhood cavities in children aged 1-3 years. The two-year study aims to identify factors that contribute to the development of Early Childhood Caries and improve prevention strategies.
A study found that fewer than one in six healthcare workers (4/30) follow CDC guidelines for removing personal protective equipment (PPE). The researchers observed HCWs entering and exiting patient rooms without proper technique, leading to potential pathogen transmission.
A new study using data from six continents provides strong evidence supporting the humped-back model (HBM) of plant species richness. The HBM theory suggests that environmental stress can lead to low plant productivity, with highly competitive species dominating at high productivity levels. The research found a very strong correlation ...
A new study by MD Anderson researchers found that protein 14-3-3 sigma opposes and reverses tumor-promoting metabolic programs in breast cancer. The study revealed that 14-3-3 sigma suppresses cancer glycosis, preventing tumors from converting glucose into pyruvate.
The National Academies have launched an international initiative to address the technical, social, and ethical issues surrounding human genome editing. The initiative aims to provide a comprehensive understanding of human genome editing and its implications for improving human health and boosting food production.
A study suggests that massive changes in the oceans' future could lead to a fundamentally different type of production regime. Rising CO2 emissions could result in a shift from phytoplankton-driven primary production to heterotrophy, leading to changes in nutrient cycling and carbon sequestration.
Researchers at Harvard University and UC San Diego have developed a new software that predicts the most active guide RNAs for specific gene targets, facilitating faster and more efficient genome engineering experiments. This breakthrough has the potential to accelerate discoveries in gene therapies and basic genetics research.
An international team of researchers has identified two robust genetic variants associated with major depressive disorder (MDD). The study, published in Nature, found that these variants are located on chromosome 10 and may be linked to mitochondrial function.
Researchers have developed a novel imaging method to capture the 3D structures of nanocrystals, which could be used to fight cancer and collect renewable energy. The method reveals asymmetrical multi-domain structures in platinum nanoparticles.
Asthmatics are particularly sensitive to sulfur dioxide, which can cause airway irritation even at low concentrations. Scientists still don't know why asthmatics lack the ability to produce interleukin-10, a protein that stops inflammatory processes.
Researchers discovered that graphene electrons share heat when exposed to ultrafast electrical currents, behaving like a hot gas. This thermodynamic approach allows for better understanding and improvement of graphene-based nano-electronic devices.
Researchers at Duke University found that attention problems are a key factor in civilian shooting casualties. Training in response inhibition can improve shooting abilities and reduce errors.
A recent study published in the American Journal of Public Health found that healthcare providers, including doctors, nurses, and mental health professionals, hold implicit biases towards lesbian women and gay men. The study used the Sexuality Implicit Association Test to assess attitudes towards sexual orientation among over 200,000 p...
Scientists analyzed ocean temperature measurements, finding a layer between 300-1,000 feet below the surface has been accumulating more heat than previously recognized. This warming will drive a surge in global surface warming as warm water moves westward, affecting surface temperatures and climate patterns.
A new treatment method using magnetic pulses has shown promise in reducing tinnitus symptoms for more than half of study participants. The treatment, known as transcranial magnetic stimulation, targets the auditory cortex in the brain and has been approved only for depression treatment.
The RV144 HIV vaccine trial found that host genetics influenced the immune response, with specific HLA alleles modulating antibody responses. This discovery could inform the development of more effective next-generation vaccines.
A study by Northwestern University found that smartphone sensor data can detect depression with 87% accuracy, analyzing time spent on phones and daily locations. The research uses GPS tracking and algorithms to identify patterns associated with depression, paving the way for passive detection and potential interventions.
Researchers at the University of Colorado School of Medicine have developed a safe and lower-cost way to diagnose and treat digestive tract problems in children, using unsedated transnasal endoscopy. The procedure has been shown to be effective in evaluating pediatric patients with potentially chronic problems in their esophagus, reduc...