A new study found no increased risk of abnormal heart rhythms or death in patients taking daily doses of citalopram above 40mg, contradicting the FDA's warning. Higher dosages were associated with fewer adverse outcomes than lower dosages.
Scientists have identified a human gene, ITGA5, that becomes more active after sleep deprivation, offering a potential new marker for detecting sleep loss. The discovery was made through cross-translational research with fruit flies, which allowed the researchers to identify genes in humans and then test them in flies.
The NASA/ESA Hubble Space Telescope has observed the remains of a star that exploded as a supernova around 600 years ago. The wispy gas structure, known as SNR B0519-69.0, is located in the Large Magellanic Cloud and features a striking blood-red color.
A team of researchers has developed an innovative injectable nano-network that can effectively control blood sugar levels in diabetics by releasing insulin when needed, maintaining normal levels for over a week. The technology has the potential to improve the health and quality of life of diabetes patients.
Astronomers detected a record-breaking gamma-ray burst from a dying star in a distant galaxy, producing the highest-energy light ever recorded. The GRB, GRB 130427A, lasted for hours and was detectable by multiple telescopes on the ground and space-based observations.
A University of Texas at Arlington aerospace engineer is developing diagnostic and predictive tools to aid aircraft manufacturers in analyzing composite structures. The work integrates design and manufacturing processes to advance the performance of composite materials, improving safety, speed, and reliability.
Researchers identified five trajectories for patients with end-stage heart failure, providing a framework to predict the path to death and improve quality of life. The study's findings can help caregivers plan for the last months of life, enabling patients to gain control over their illness.
A NASA-led modeling study projects that global warming will lead to an increase in heavy rainfall and a decrease in moderate rainfall worldwide. The study suggests that regions around the equator, such as the Pacific Ocean and Asian monsoon areas, will experience significant increases in heavy precipitation.
Hundreds of deliberate fires were detected in Guerrero, Oaxaca, Michoacan, Colima, and Jalisco regions. The fires are managed by farmers to clear land and enhance crops, but also produce smoke degrading air quality.
Researchers at Rice University have discovered a way to create liquid crystals from negatively charged carbon nanotubes, allowing for easier functionalization and potentially leading to stronger, more conductive fibers. This breakthrough could significantly improve the creation of macro materials out of microscopic nanotubes.
The 2012-2013 first place team in the NASA RealWorld-InWorld Engineering Design Challenge consists of five high school juniors and seniors who developed innovative engineering designs for the James Webb Space Telescope. The winning team will present their design concept to Dr. John Mather at a VIP event at NASA Goddard.
Researchers from Queen Mary University of London used complex networks to map human brain connections, finding symmetrical neurons may drive synchronized activity across distant regions. This breakthrough adds to recent findings on neural network growth and development.
The Orthopaedic Journal of Sports Medicine publishes quality research, systematic reviews, and meta-analyses on orthopaedic sports medicine topics. The first three published articles include studies on ACL reconstruction, running-related injuries, and knee kinematics.
Concordia University's NSERC Smart Net-zero Energy Buildings Strategic Network has received $1 million in new funding from Natural Resources Canada. This grant will support research and testing of progressive technologies to create net-zero energy homes and commercial buildings.
Researchers developed a new compound called PC-KUS that reduces hydrogen peroxide accumulation in the hair follicle, reversing gray hair. The treatment also works on vitiligo, a skin condition causing loss of pigment, with successful repigmentation outcomes observed.
A study with zoo baboons found that they can accurately discriminate between different quantities, relying on a cognitive approach known as the analog system. This ability is shared by humans and children who have not yet learned to count, suggesting a fundamental talent for making approximate quantity judgments.
Agricultural fires are a common occurrence in eastern Russia, particularly during the planting season. The Russian military uses specially equipped transport airplanes to put out over 90 fires, highlighting the need for monitoring and intervention.
Researchers found that preordering lunch led to healthier choices by up to 48%, as students opted for nutrient-dense options when full. The study suggests that electronic or paper-based systems can encourage health-conscious decisions at school lunches.
Researchers created a new mouse model to study the development of type 2 diabetes, using middle-aged mice fed fatty food until old age. The study confirmed that inflammation in pancreatic islets leads to the disease, while DPP-4 inhibitors maintain good insulin production and prevent inflammation.
Mexican-American adults born in the US are more likely to report physical limitations compared to immigrant counterparts. This disparity is attributed to various factors including acculturation levels and lifestyle changes over time.
A University of Iowa undergraduate student has discovered that Saturn's magnetosphere changes with the seasons, helping to clarify the planet's day length. The findings may alter our understanding of the Earth's magnetosphere and Van Allen radiation belts.
Researchers used computer simulations to investigate the energy landscape of ion channels, identifying a critical amino acid that regulates their function. The study provides new insights into ion channel mechanisms, which are essential for developing targeted therapies.
Researchers will showcase advancements in sound technology, including virtual acoustic environments, novel microphone designs, and innovative methods for monitoring oil spills. The event aims to bring together experts from physics, engineering, and medicine to share their latest discoveries.
Researchers have identified a new mechanism governing critical processes in sexual reproduction during meiosis. The discovery reveals that a step-2 enzyme is modified by SUMO proteins, altering its function and working together with an unaltered enzyme to form SUMO chains.
Utah biologist Çagan Şekercioğlu has won the prestigious Whitley Gold Award for conservation twice, including this year, for his work safeguarding bird-rich wetlands in northeast Turkey. He was awarded by Princess Anne at a ceremony in London.
Using regional anesthesia instead of general anesthesia decreases major complications in patients with sleep apnea undergoing total joint replacement. This study found that neuraxial anesthesia improves outcomes, reducing pulmonary, gastrointestinal, and infectious complications, as well as acute renal failure and hospital length of stay.
A new study from Carnegie Mellon University reveals that self-affirmation can protect against the negative effects of stress on problem-solving performance. Participants who underwent a brief self-affirmation exercise showed improved problem-solving abilities under time pressure, suggesting a potential strategy for boosting performance.
A novel high-throughput screening method has identified agents that can block EZH2 methyltransferase, a key enzyme in tumor development. This approach uses AlphaLisa technology to detect methylation and accelerates the identification of small molecule inhibitors for cancer treatment.
The 2011 Tohoku earthquake and tsunami are the subject of a special issue in the Bulletin of the Seismological Society of America. Researchers investigated the rupture process, seismic radiation, geodetic deformations, and tsunami waves. The study sheds light on the processes at work during giant earthquakes.
The Springs Fire has reached the beach in Ventura County and is pushing toward the upscale city of Malibu due to howling Santa Ana winds and dry vegetation. As of early Friday morning, the fire had grown to 10,000 acres and was 10% contained, with over 2,000 homes under threat.
Astronomers may witness the birth of a black hole for the first time using a new analysis that predicts a distinct burst of light just before the black hole forms. The study suggests that this signature light burst could be detectable in nearby galaxies and provide valuable insights into black-hole formation.
A new species of small theropod dinosaur has been identified in northwestern China, with fossil remains estimated to be less than a year old. The discovery, made by a team led by George Washington University biologist James Clark, provides insights into the early evolution of meat-eating dinosaurs.
A study maps H7N9 risk in eastern China by analyzing bird migration patterns and poultry distribution. The model predicts future infection risks across central and western China, aiding surveillance and control of H7N9 infections.
A Cornell University study reveals that nearly a third of Facebook users deactivate their accounts, and one in 10 completely quit the platform. Participants cited reasons such as concerns about privacy, productivity issues, and shallow social interactions as motivations for leaving.
A mid-level solar flare with an M5.7-class rating was detected by NASA on May 3, 2013, affecting GPS and communication signals. The flare caused a temporary disruption to radio signals before subsiding.
Researchers have discovered a light-independent source of superoxide in the depths of oceans and dark environments. Bacteria common in these areas produce superoxide, which has both toxic and beneficial effects on the environment.
Researchers will explore sustainable business models for digital games with scientific goals, developing new algorithms to analyze player behaviors. The £1.2 million project brings UK game industry closer to scientists, teachers, and healthcare workers to drive innovation.