A new study suggests that all chronic hepatitis C-infected patients' access to direct-acting antiviral medications must be improved to achieve the public health goal of eliminating hepatitis C infection. Denials were more common among patients with commercial insurance, with 52.4% of prescriptions denied.
New fossils from South Africa's Waterloo Farm locality reveal the first African tetrapods lived in Antarctica during the Devonian period. These early vertebrates, named Tutusius and Umzantsia, challenge previous assumptions about tetrapod evolution and terrestrialization.
Researchers at RMIT University found that honeybees can comprehend the concept of zero, a feat previously thought to be exclusive to humans and other intelligent species. This discovery has significant implications for developing artificial intelligence, as it suggests simpler approaches may be possible.
A University of Louisville researcher conducted a literature review on racism and systemic racism in public health, highlighting the need for examination of systems and structures. The study found that addressing systemic racism is crucial for reducing health inequities.
A new computational model accurately predicts the gradual progression of metabolic syndrome in mice, identifying two disease subtypes and their underlying metabolic differences. The model also correctly predicts comorbidities like fatty liver disease, offering new insights into preventing the disease.
A new University of Pittsburgh analysis found that negative social media experiences carry more weight than positive interactions in predicting depressive symptoms. While positive experiences were not strongly related, negative ones were consistently associated with higher symptoms.
Researchers have developed a compact and sensitive nanophotonic system that can identify molecules without conventional spectrometry. The system uses metapixels to generate a unique bar code for each molecule, enabling massive analysis and classification using artificial neural networks.
A new study found that white shark activity increases dramatically when interacting with cage-diving operators, indicating potential behavioral changes. The researchers tracked ten white sharks at South Australia's Neptune Islands, showing a 61% higher dynamic body acceleration when interacting with tourists.
Tropical Cyclone Ewiniar has strengthened in the South China Sea, blanketing Hainan Island with bands of thunderstorms. The storm is expected to make landfall in southeastern China's mainland and dissipate quickly, prompting severe weather warnings.
Scientists at DKFZ and SickKids found that certain antibodies can cooperate with each other to bind stronger to malaria parasites, improving the immune response. This discovery could lead to the development of more effective vaccines against malaria.
Researchers trained free-flying honey bees to recognize numbers from two to five, then introduced one and zero, demonstrating their ability to distinguish zero as lower than one.
A KAIST research team has developed a novel perovskite material, Cs2Au2I6, which exhibits high efficiency and stability compared to conventional organic-inorganic hybrid perovskites. The new material is expected to overcome the limitations of previous perovskite materials, including toxicity issues.
A study published in The Journal of Bone & Joint Surgery found that patients who take prescription opioids for a longer period before spinal surgery are more likely to continue using opioids several months after surgery. Duration of opioid use before surgery was the main risk factor for continued use. After adjustment, the likelihood o...
A Stanford-led study developed a blood test detecting premature birth with 75-80% accuracy. The test also estimates gestational age, reducing infant mortality risk and improving prenatal care in low-resource settings.
A new study published in Computers in Human Behavior found that uncertainty about a potential partner's romantic intentions decreases their sexual desirability. In contrast, feeling confident about a partner's interest and acceptance predicts higher levels of sexual desire. The research suggests that certainty serves as a gut-feeling i...
Two new species of tiny shrimps, Odontonia bagginsi and Odontonia plurellicola, are described as part of a research project at Leiden University. The shrimps are found in symbiosis with tunicates, with unique adaptations to their environment.
The McCombs School of Business at UT Austin is part of a $50 million blockchain program launched by Ripple, supporting academic research, technical development and innovation. The program aims to explore increasingly useful applications of blockchain and cryptocurrencies.
The new transmitter uses ultrafast 'frequency hopping' and data encryption to protect signals from being intercepted and jammed. This technology could secure medical devices, wearables, vehicles, and smart household technologies, making the internet of things a more secure place.
A new study by Michigan Medicine found that playing recordings of mothers' voices can significantly improve sleep quality for babies in the Neonatal Intensive Care Unit. The study, which enrolled 50 babies born after 33 weeks gestation, showed that babies slept better and woke up less often when exposed to their mother's voice. Researc...
Two new planetary systems have been discovered, one featuring three Earth-sized planets orbiting a red dwarf star. These planets are thought to be rocky worlds with temperatures tens of degrees higher than Earth due to their close proximity to the star.
A new model proposes that dark inflation drove the early universe's expansion and predicts the detectability of primordial gravitational waves. The model provides a precise chronology of events during the first moments after the Big Bang.
Researchers at Massachusetts General Hospital identify SMCHD1 as critical regulator of X chromosome inactivation, allowing genes to be suppressed. The study's findings have implications for treating diseases associated with misfolded chromatin and hold promise for reactivating the inactive X chromosome.
Researchers found that golden snub-nosed monkeys increase their energy intake from fats and carbs in winter to counteract elevated thermoregulatory costs. This adjustment enables the monkeys to balance their macronutrient content and meet specific nutritional needs, suggesting a key adaptation for survival in cold environments.
A team of researchers at the University of Freiburg has created a new model to explain how the brain stores memories of tangible events. The model is based on an experiment with mice, where they used a virtual environment and recorded the activity of their nerve cells.
The discovery of ancient tetrapod fossils in South Africa suggests that four-limbed animals evolved in environments beyond tropical regions. The presence of these animals near the poles raises questions about the role of high-latitude environments in their evolutionary transition.
A new analysis reveals that task-based fMRI experiments with typical sample sizes of about 30 participants are only modestly replicable. Larger sample sizes may be needed to improve replicability in neuroscience studies.
Colorado State University biomedical engineer Jesse Wilson is proposing a radical new imaging technology that could diagnose mitochondrial defects in an instant. His technology aims to create a cost-effective, non-invasive way to diagnose mitochondrial diseases, which affect about 1 in 5,000 children and are often fatal.
A study found that persistent illicit drug use was associated with a higher risk of kidney disease progression and early death among chronic kidney disease patients. Tobacco smoking was also linked to an increased risk of early death.
Researchers found that male dolphins keep their unique whistles to identify partners and competitors, even in strong alliances. This allows them to negotiate a complex social network of cooperative relationships.
Direct air capture technology captures CO2 from the atmosphere and converts it into fresh fuels, reducing carbon footprint of transportation with minimal disruption. The resulting fuels are compatible with existing infrastructure and have ultra-low life cycle carbon intensities.
A recent study by the University of Pittsburgh and Virginia Tech found that mucus and airway secretions protect the flu virus when it becomes airborne, regardless of humidity levels. The study refutes previous findings that suggested the virus degrades and is inactivated at higher humidity levels.
New study finds that eye dominance and visual acuity are governed by separate areas of the brain, making it possible to correct one without affecting the other. Researchers can now address acuity directly, bypassing normal eye dominance restoration.
A study at the University of Toledo identifies a new centriole in human sperm that functions in zygotes, potentially contributing to male infertility and early embryo developmental defects. The research provides new avenues for diagnostics and therapeutic strategies.
Researchers at the University of Manchester are using 4D scanning technology to predict the behavior of lava flows and volcanic eruptions. By studying crystallization in magmas, they can simulate the behavior of natural lava flows and better understand the hazards posed by fast-moving flows.
Researchers discovered that asymptomatic malaria infections do not protect against new infections, and treating these cases could help prevent the spread of malaria. Treating asymptomatic malaria carriers reduced the risk of malaria illness by 50%.
A USC research team discovered 150 proteins affecting brain development and cell activity that contribute to mental disorders. The study used stem cells to determine chemical reactions influencing nerve growth and cell functions in people.
Researchers found that male bottlenose dolphins retain individual vocal labels in long-term cooperative alliances, enabling them to track complex social relationships. This study provides insight into the role of vocal communication in coordinating social behaviors among these intelligent marine mammals.
A study in northern Tanzania found that cattle, sheep, and goats are infected with Leptospira bacteria, which can cause severe disease in humans. The research highlights the importance of understanding animal transmission to develop control measures.
A University of Kansas researcher found that helping others and building mutually beneficial relationships can boost an organization's reputation and build resources. The study analyzed studies from evolutionary biology and economics, concluding that indirect reciprocity is a key to effective cooperation.
Written resources can enhance health behavior changes and are a fundamental component of health promotion efforts. However, research reveals that over 50% of physical activity resources have reading levels above an eighth-grade level, limiting their effectiveness.
A new study by the University of Pennsylvania School of Medicine found that private insurers deny coverage for life-saving hepatitis C drugs at a rate of 52.4%, while Medicaid and Medicare deny treatment at 34.5% and 14.7% respectively. The high denial rates may be due to varying restrictions on reimbursements among states.
A study published in The BMJ found that spending more years in full-time education is associated with a greater risk of developing myopia. Every additional year of education was linked to more myopia, with university graduates being at least 1 dioptre more myopic than those who left school earlier.
A study by San Francisco State University and UCSF found that higher opportunity neighborhoods can protect children from negative health impacts associated with growing up poor. Living in such neighborhoods may mitigate stress, improve physical health, and lower cortisol levels.
A new analysis of US internet search data found a strong association between anti-Muslim and pro-ISIS searches in ethnically alike communities with high poverty levels. The study suggests that counterterrorism policies targeting Muslims may inadvertently increase radicalization in these communities.
Researchers have gained a deeper understanding of telomerase, an enzyme that maintains DNA in telomeres. Telomerase is active in cancer cells, enabling them to grow and spread. The study provides clues about how to target the enzyme's activity to develop new drugs.
A study of 50,734 Japanese children aged 3 found that prenatal and postnatal exposure to smoking was associated with an increased risk of hearing impairment. Children exposed to tobacco smoke during pregnancy or at 4 months had a higher relative risk of hearing problems compared to those not exposed.
New Cornell research finds that immediate rewards increase intrinsic motivation by increasing positive experience of a task. This can lead to improved persistence and motivation, with important implications for employee motivation and loyalty programs.
A new study found that playing a recording of a mother reading stories can improve sleep in preterm newborns in the neonatal intensive care unit. The research involved 20 near-term and 27 premature infants born between 33-34 weeks, with results showing reduced likelihood of wakefulness during peak noise levels.
Researchers discovered fossil footprints for animal appendages in the Ediacaran Period in South China, revealing evidence of early animal life. The trackways indicate that bilaterian animals with paired appendages existed during this period, raising questions about their evolutionary origins.
Tropical Depression 05W briefly reached tropical storm status before weakening back to a depression. NASA's Aqua satellite captured infrared imagery showing the storm's strength and potential for heavy rainfall.
According to a Dartmouth College study, airlines can avoid 60-80 percent of crew-related delays through sophisticated crew scheduling practices. This results in savings of up to $13 billion system-wide each year in terms of reduction in delay costs to airlines and consumers.
Researchers demonstrate large-scale fabrication of transparent conductive electrode film based on nanopatterned silver, offering high-performance and long-lasting option for use with flexible screens. The silver-based films could also enable flexible solar cells and improve existing flexible displays.
Researchers identified urinary markers that differentiate between hip replacement patients who develop bone tissue destruction and those who do not. The combination of α-CTX and IL-6 biomarkers predicted osteolysis with high accuracy.
Researchers at Embrapa have developed improved rice varieties with increased yields and reduced plant height, allowing for more efficient use of resources. Over a 45-year period, grain yield improved by an average of 0.62-0.73% per year, resulting in thousands of pounds in increased yield for farmers.
A study published in PLOS ONE found that mouse vocalizations are influenced by sex and social context, with males producing more vocalizations after social interaction. Females, on the other hand, produce similar numbers of vocalizations regardless of prior social experience.
Researchers discovered a naturally occurring antibody that binds to oxidized phospholipids, blocking inflammation and preventing arterial plaque formation. The antibody protected mice from atherosclerosis, aortic stenosis, hepatic steatosis, and prolonged their lives.
Researchers identified a neural strategy that enables the brain to rapidly select and perform different mental operations. The brain uses a combination of internal cues and external inputs to control movement times flexibly, allowing for novel computations on the fly.
Researchers are developing an evidence-based training option to teach children with severe speech impairments to use commercially available apps as communication tools. The goal is to support the development of children with disorders such as Down syndrome or cerebral palsy, who often face social and educational challenges.
Researchers discovered a key molecular machinery driving DNA segregation in yeast cells, which may hold insights into human chromosome maintenance and cancer development. Cells lacking this machinery, RSC, exhibit abnormal DNA segregation and spontaneous chromosome duplication.
A study has revealed that pyraclostrobin, a widely used fungicide, impairs silk production in silkworms by increasing caterpillar mortality up to three times and reducing cocoons size. This finding suggests that pesticide poisoning may be one of the causes of the decline in Brazilian silkworm cocoon production.