A team of scientists from Vanderbilt University has invented an ultra-fast and ultra-small optical switch that can turn on and off trillions of times per second. The device is made of artificial material engineered to have properties not found in nature, breaking the miniaturization barrier for photon-based devices.
The study found that despite equal prevalence of hypertension among Hispanics and non-Hispanic whites, diagnosis rates are significantly lower, particularly among uninsured individuals. The research emphasizes the need for improved access to diagnostic and treatment services to address this disparity.
The University of Plymouth is developing a new technique using 'virtual fish' cells to study the toxicity and concentration of man-made chemicals. This method has the potential to significantly reduce the number of live animals required for scientific research, with promising results already shown in previous studies.
A UCLA study reconstructs the temperature history of a region that influences global climate, revealing significant temperature changes over 20,000 years. The findings also shed light on the mystery of retreating glaciers in the Pacific Ocean's western tropics, with implications for future climate models.
The Hastings Center President Emeritus Thomas H. Murray calls for a national conversation about the discretion parents should have in choosing their child's traits. The FDA is considering human testing of mitochondrial manipulation, which could prevent rare diseases and address female infertility, raising concerns about safety and ethics.
Researchers investigated whether the order of cardio- and resistance training affects biological adaptations. Despite differences in recovery time, long-term adaptations were similar between groups. The amount and frequency of training may play a key role in fitness outcomes.
Researchers at MIT create a self-contained autonomous soft robot capable of rapid body motion, mimicking the escape maneuver of real fish. The robotic fish uses fluid flow through flexible channels to change direction quickly and explore new advantages in soft robotics.
A team of physicists reveals how oxygen-16's nuclear shape differs between its ground and first excited states, shedding light on the element's production. The findings may improve our understanding of helium-burning reactions in red giant stars.
Researchers at UT Arlington College of Nursing, Baylor Scott & White Health, and UT Dallas developed a video-game simulation to teach doctors and nurses effective communication strategies. The project aims to enhance patient safety and improve patient outcomes by playing out tense situations in a virtual world.
A new study aims to improve patients' ability to walk after a stroke by combining brain stimulation with gait training. The treatment group will receive transcranial direct current stimulation before gait training to help restore balance in cortical excitability.
A study found that American Muslims' negative religious outlooks hinder their willingness to donate organs, while Arab Americans showed a greater acceptance. The research highlights the need for open discussion within the Muslim community and with medical authorities to address complex issues around religion and organ donation.
Researchers at UCSF found a specialized brain circuit that fires more strongly in response to movement, allowing the visual system to work better while walking or running. This discovery could have implications for human vision and navigation.
Traffic engineers at Wayne State University suggest metered roundabouts, or 'super circles,' as a solution to alleviate rush-hour congestion and enhance safety in the US. The proposed system utilizes stop lights to control peak hour traffic flow, reducing capacity issues and promoting safer intersections.
Scientists discover fossilized eggs and embryos of tiny marine crustaceans, revealing a 450-million-year-old species that took care of its young in the same way as modern relatives. The finding provides conclusive evidence of reproductive strategy conservation across millennia.
A study of 28 shoulder replacement patients found that their driving skills improved significantly at 12 weeks post-surgery, with a decrease in simulator collisions. Patients who drove less than 1,800 miles per year incurred more collisions, suggesting that long-distance driving may be safe earlier
Researchers found strong evidence of recent positive selection for lactase persistence in African populations, likely due to pastoralism. Three new genetic variants associated with the trait were identified, as well as two previously known SNPs, suggesting a link between cattle domestication and milk consumption.
UC Riverside and University of Manchester researchers discover that adding a layer of graphene to each side of a copper film increases heat conducting properties by up to 24 percent. This enhancement could further help in the downscaling of electronics.
An interdisciplinary team of researchers at KIT developed a technique to record 3D X-ray films showing internal movement dynamics in spatially precise and temporal manners. The scientists applied this method to a living weevil, generating complete 3D film sequences in real-time or slow motion.
Researchers found a strong correlation between genital malformations in newborn males and increased rates of autism and intellectual disability. County-level analysis revealed that every one percent increase in malformations was associated with a 283% increase in autism rates.
Research suggests shame is a destructive emotion that hinders social connections. Professor Thomas Scheff argues that shame can manifest in larger conflicts like wars due to the reaction to it being hidden behind rationality. A good laugh is suggested as a way to resolve hidden shame, according to Scheff.
A controlled clinical trial intervention found that mindfulness-based meditation sessions improved mood and sleep in teenagers with cancer. The study revealed significant benefits in depression scores and better sleeping patterns among girls in the mindfulness group.
Research published in Diabetologia found that cancer patients with diabetes have a higher risk of early death due to the combination of diabetes and cancer. Patients treated with insulin had the highest mortality rate, while those with oral hypoglycaemic agents or no treatment showed lower risks
Scientists have devised a pair of math equations that better describe how topography, rock compositions, and water movement affect the geologic carbon cycle. The research, supported by the National Research Foundation, aims to improve understanding of the recycling process between carbon dioxide and rocky interior.
Researchers identified key mutations and genetic disturbances that arise at certain stages of lung cancer development, including a gene called Mycl1 that is found in nearly all tumor cells. They also discovered that loss of the Pten gene leads to overactive cell growth and rapid tumor progression.
A new study by American Sociological Association found that social ties play a significant role in determining who wins certain Hollywood movie awards. The research suggests that peers tend to favor award candidates who are heavily embedded in the film industry, while critics show no such favoritism.
Columbia researchers uncover a chemical reaction that increases muscle protein elasticity in response to stretching forces. This finding could lead to new treatments for muscle disorders like dilated cardiomyopathy.
A recent study found that Mexican-Americans experience moderate functional disability and nearly one-third develop post-stroke dementia. They also score worse on measures of daily living activities and cognition. The study highlights the need for intervention strategies to improve recovery among this population.
The extinct California porpoise, Semirostrum ceruttii, had a distinctive underbite with an extended lower jaw and innervated jaws, likely used for probing prey. The species' anatomy suggests adaptations to its environment, including poor eyesight and sensitive lower jaw used for echolocation and feeding.
The 'tactile internet' aims to drive innovation in areas like medicine, transportation, and energy efficiency through the development of 5G networks. The initiative seeks to improve safety and security in public spaces and enhance mobility for people with disabilities.
A new study from the University of California - Los Angeles Health Sciences found that older Americans with more muscle mass are less likely to die prematurely. The research suggests that clinicians should focus on improving body composition rather than relying solely on body mass index (BMI) when counseling older adults.
Researchers argue that life history strategy and social behavior should guide management approaches, as 73% of carnivore species are declining. Highly cohesive social species require strict participation from all group members to ensure population persistence.
Researchers found that blocking a specific immune cell mediator can greatly reduce brain damage after a stroke. The study showed that treating mice with a compound that blocks IL-21 significantly reduced stroke damage and improved outcomes.
A team of Caltech researchers has developed a mathematical model to describe the competition between genes for regulatory proteins. The model accounts for the limited availability of transcription factors, leading to correlations between gene copies and a regime where some portion glows green all the time.
A study found that children between four and seven develop a biological understanding of the human body, shaped by education and cultural experiences. Pakistani children had accelerated understanding due to exposure to animal slaughter, while British children's knowledge improved with age through formal education.
A new species of ancient porpoise has been identified with an unprecedentedly long symphysis, a structure analogous to the human chin, measuring 85 cm. This unique feature suggests that the animal used its chin to probe the seabed for food, contradicting modern porpoises' feeding habits.
Scientists have found a novel way in which plants perceive pathogens to activate immunity, opening the door to improving crop disease resistance. The discovery reveals that phosphorylation of an amino acid called tyrosine is key for activating plant immune receptors.
A team of scientists has found a molecule that actively regulates memory loss, revealing the process of forgetting is not passive but rather an active process. The discovery could lead to new treatments for mental disorders such as Alzheimer's.
A husband's agreeable personality and good health appear crucial to preventing conflict among older couples who have been together a long time. Wives report more conflict if their husband is in poor health, but not vice versa.
Researchers at UT Southwestern Medical Center have discovered a new pathway linking two major biological processes that occur after a heart attack, leading to potential cardioprotection. The study identifies the activation of the unfolded protein response (UPR) and the hexosamine biosynthetic pathway as key events in this process.
Scientists at the University of Washington have successfully created a line of human embryonic stem cells that can develop into various tissues. The new 'naive' cells retain their natural ability to differentiate into all types of human cells without artificial genes, opening up possibilities for regenerative medicine and transplantation.
Tropical Cyclone Lusi battled vertical wind shear pushing precipitation away from its center. The storm showed strongest thunderstorms being pushed south of the circulation center.
Researchers developed a new heat-based technique for counting and measuring microscopic particles, offering advantages in simplicity, affordability, and versatility. The technique has been tested effectively for objects in the 200 micron to 90 micron range and is expected to be able to measure individual cells.
A new study by Scripps Institution of Oceanography predicts that some regions will experience an increase of up to 30 more dry days per year due to climate change. This shift in precipitation patterns will have significant impacts on vegetation, soil moisture, and water resources.
A CU-Boulder-led study found that crowdsourcing can be an accurate tool for counting lunar craters, surpassing even experienced professionals. The research compared the work of over 5,000 amateur counters to eight expert planetary crater counters, with surprising results.
A recent study by UT Arlington researchers found that employees using treadmill workstations burned an average of 74 more calories per day, while also becoming more productive at work. The study showed a carryover effect where exercise became a habit for employees, and had a positive impact on employee health in the fight against obesity.
Researchers have demonstrated a form of quantum cryptography that protects people doing business with others they may not trust. The protocol, known as 1-2 random oblivious transfer (ROT), allows two parties to securely exchange information without revealing their picks, making it ideal for secure identification and online transactions.
In a new study, researchers found that four-to-seven-year-old children rely on phonological characteristics when assigning nouns to classes, even though semantic features are more predictive. This suggests that children actively filter and select data from their environment to learn language.
A new study by North Carolina State University researchers found that approximately 90% of black sea bass with visible barotrauma survived, similar to those without injury. The findings inform stock assessments for sustainable fishing practices and may provide insights into mortality rates for other species.
Researchers found that sutures with stem cells led to quicker and stronger healing of Achilles tendon tears compared to traditional sutures. The study showed improved tendon strength and reduced risk of rerupture in rats, suggesting potential benefits for human patients.
A recent analysis suggests that people moved out from the Bering Land Bridge, with some migrating back to central Asia and others into North America. The findings support the Out-of-Beringia hypothesis, indicating a complex migration pattern.
Researchers used computational software to analyze published data on Damascus blades, proposing a new explanation for pattern formation. The study suggests that the high carbon content and microsegregation of solutes during solidification lead to the characteristic band-like formation of coarse cementite particles.
A study published in Neural Regeneration Research found that iron overload exacerbates oxidative stress injury in neural cells under high glucose concentration. The Nrf2/ARE signaling pathway plays a crucial role in this process, suggesting novel therapeutic strategies for diabetic peripheral neuropathy.
University of Notre Dame biologists Nicole Achee and Neil Lobo are leading a five-year project to develop spatial repellent products for mosquito control, aiming to prevent malaria and dengue fever. The grant will generate data on the effectiveness of this new paradigm in mosquito control.
A recent study published in the Journal of Adolescent Health found that a text-message program is an effective tool for preventing violence among at-risk teen girls. The program, which was developed with input from the teens themselves, provides personalized and positively worded messages to help them develop coping strategies and prev...
A new tyrannosaurine species, Nanuqsaurus hoglundi, has been identified from a 70-million-year-old Alaskan fossil. The smaller dinosaur is estimated to be around 25 inches in skull length compared to T. rex's 60 inches, suggesting an adaptation to arctic seasons.
A new study calls for increased routine HIV testing among older adults, citing high rates of 'late presentation' and significantly increased mortality. The UK's growing population of older individuals living with HIV requires a more comprehensive approach to care, incorporating mental, functional, and social aspects.
A study analyzing 301,718 revision total knee replacement surgeries found that periprosthetic joint infections were the most common reason for failure, occurring in 25% of patients. Mechanical loosening was also a significant cause of failure, accounting for 18.5% of cases.
A meta-analysis of 19 studies involving over 760,000 participants found that people with pre-high blood pressure were 66% more likely to develop a stroke. The study also found that nearly 20% of strokes in the study population were due to pre-high blood pressure.
A study of 9,500 residents in six US cities found that while some urban lawn care patterns were similar, others varied significantly. The research suggests that lawns may be a key indicator of where cities need to address sustainability concerns, particularly in terms of nutrient pollution.
Scientists have developed a new approach to simulate the emergence of cell metabolism on Earth by harnessing geological redox reactions. The study demonstrates that certain minerals could drive these reactions, potentially leading to biological metabolisms.