A study published in Nature Genetics found that genetic patterns on chromosomes 9 and 22 are associated with an increased risk of melanoma. People carrying these genes are around eight times more likely to develop the disease than those with no variants.
A new class of black hole has been discovered, with masses between 100 and several hundred thousand times that of the Sun. The discovery, made by an international team of astronomers using XMM-Newton observations, confirms the existence of intermediate mass black holes.
Astronomers use ESA's XMM-Newton and Integral space observatories to study a magnetar outburst from the rare 'dead' star SGR 0501+4516. The outburst lasted over four months and released hundreds of smaller bursts, providing valuable insights into extreme matter conditions.
A team of astronomers led by Nanda Rea used European Space Agency satellites to study the eruptions of a rare magnetar, SGR 0501+4516. The object underwent hundreds of small bursts over four months, emitting high-energy X-rays during its outburst phase.
Physicists at Caltech developed a nanoscale zipper cavity that exploits mechanical properties of light to enhance interactions between light and motion. The device can detect weak classical forces and has potential applications in biology, optics, and quantum realm.
Dr. Daniel K. Podolsky receives the 2009 Julius Friedenwald Medal for his lifelong contributions to gastroenterology and groundbreaking scientific achievements. He credits his colleagues and mentors for his success, highlighting UT Southwestern's role in his career.
Using XMM-Newton's new data, astronomers have mapped the region around a supermassive black hole, estimating its mass at 3-5 million solar masses. The observations also reveal rapid spinning and accretion rates that verge on theoretical limits.
A team of researchers at the University of Illinois has demonstrated macroscopic quantum tunneling in ultrathin superconducting nanowires. They observed a process called quantum phase slip, where packs of electrons tunnel together from higher to lower current states. This finding provides evidence that quantum mechanics governs large s...
A global research collaboration has identified eight DNA regions associated with blood pressure and hypertension, six of which have never been linked to the condition before. The study found that genetic variants in these regions may hold promise for new treatments or even prevention.
A study published in Journal of Cardiac Failure found that obstructive sleep apnea and central sleep apnea are prevalent in heart failure patients, with 47% experiencing moderate to severe breathing disorders. The prevalence was not decreased by beta-blockers and spironolactone treatment.
Researchers teach computer to find regularities in nature that become established laws without prior knowledge, applicable to biology, cosmology, and complex systems. The algorithm tests equations against known derivatives, repeats until accurate equations are found.
A computer program using raw observational data teases out fundamental physical laws, particularly for biological systems that have eluded detection. The breakthrough uses a computational process inspired by biological evolution to analyze data sets and identify invariant patterns.
International experts propose MEDQUARG guidelines to study counterfeit and poor-quality medicines globally. The guidelines aim to improve the effectiveness of treatment policies by providing a standard for medicine quality surveys.
Researchers identified 14 gene variants associated with prolonged QT interval, a known risk factor for sudden cardiac death. Individuals with the top genotype scores were found to have a higher risk of prolonged QT intervals and increased mortality.
A Tel Aviv University researcher is studying how the uterus contracts before embryo implantation, suggesting optimal timing and positioning can improve IVF success rates. The research aims to reduce the risk of multiple births and genetic diseases in IVF babies.
Researchers have discovered a new connection between Carter's constant and Newtonian gravity, shedding light on the behavior of rotating black holes. The findings have significant implications for gravitational-wave astronomy, potentially allowing the detection of small black hole orbits.
Researchers have identified two common gene variants associated with increased blood pressure levels, which may lead to new therapies. The study, published in Nature Genetics, found that these variants affect proteins involved in cardiovascular response to stress, influencing blood pressure levels.
A molecule that promotes brain development may serve as a possible treatment for Rett syndrome, reversing some of its symptoms in mice. Researchers found that injecting the molecule into mice with faulty brain cells helped them develop normally and reduced symptoms.
The Autism Consortium has published a groundbreaking study defining the mechanism behind Rett syndrome, a neurodevelopmental disorder primarily affecting girls and a leading cause of autism. The research discovered that targeting the IGF1 signaling axis could be a promising therapeutic strategy for treating or reversing Rett Syndrome.
Astronomers are discovering that galaxies with actively forming stars have a bluish color, while those without do so appear red. The BAT Hard X-ray Survey of NASA's Swift spacecraft has found most nearby active galaxies to be spiral and irregular, with more than 30% being colliding.
A balance between large research groups and individual scientists is optimal for success, according to a novel theory by Adrian Bejan. Successful research groups grow naturally and contribute to the whole, while solitary thinkers have flourished throughout history due to science being good for society.
Researchers have captured a rare binary star explosion inside a planetary nebula, offering new insights into stellar evolution. The study predicts that the combined mass of the two stars could lead to a larger supernova explosion.
Theoretical physicists led by the University of Oregon's Stephen Hsu have found indications that grand unified theories may be merging into a single unified field. However, their research also suggests that this process could be slowed down or blocked by quantum fluctuations in space-time, making it more challenging to detect.
Research highlights the importance of including incarcerated populations in health studies to improve community health outcomes. The Journal of Correctional Health Care publishes original research on correctional health care topics, featuring findings on primary care, infectious disease, and mental health.
Researchers are conducting a new study to investigate the safety and effectiveness of airway bypass using drug-eluting stents for patients with advanced emphysema or COPD. The trial aims to provide a minimally invasive treatment option for patients who have limited treatment options, such as lung reduction surgery and inhalers.
Researchers at Durham University found a giant black hole emitting a regular X-ray signal, linking it to smaller black holes. This discovery sheds light on how gas behaves around super-massive black holes as they feed and develop.
MIT researchers have developed a technique called amplitude spectroscopy that can characterize the properties of artificial atoms used in quantum computing. This approach enables the study of quantum entities over broad frequency ranges, which is essential for understanding and engineering atomic-scale devices.
Researchers found that Martian gullies resemble those in Antarctica's McMurdo Dry Valleys, formed as recently as a few hundred thousand years ago. The study suggests changes in snow accumulation and glaciation are linked to Mars' spin obliquity, indicating dynamic climate change on the planet.
A study published in Psychological Science found that socially painful experiences can be revisited through memory recall, causing increased emotional pain. In contrast, physically painful events tend to fade with time. The study's findings suggest an evolutionary aspect of human brain development, particularly in the cerebral cortex, ...
Researchers found that under certain conditions, a molecule can jump forward instead of backward when collided with another atom. This 'tug-of-war' behavior is crucial for understanding chemical reactions and their mechanics.
Daan Huybrechs, a postdoctoral fellow at Belgium's Katholieke Universiteit Leuven, will receive the Richard C. DiPrima Prize for his dissertation on multiscale and hybrid methods for solving oscillatory integral equations. The prize recognizes his outstanding research in applied mathematics and computational science.
Astronomers have discovered identical twin stars that formed at different times, challenging current star-formation theories. The analysis reveals significant differences in brightness, surface temperature, and possibly size between the two stars, with one being about 2x brighter and 300 degrees hotter than its twin.
A team of Japanese astronomers has discovered that the Milky Way's central black hole, Sagittarius A*, let loose a powerful flare three centuries ago. The finding resolves a long-standing mystery about the black hole's quiescent nature.
Researchers used XMM-Newton to observe four polar BAL quasars, finding two of them emitted more X-rays than anticipated, suggesting a lack of absorbing gas. This discovery may indicate that BAL quasars are more complex than initially thought, with both equatorial and polar outflows potentially occurring simultaneously.
Researchers have successfully fired photons back and forth between a space satellite and a ground-based station, demonstrating the possibility of a secure quantum communication channel. The achievement marks an important step towards global communication via satellites using quantum mechanics.
The Operation Jupiter collaboration highlights the growing threat of fake pharmaceuticals, particularly in South-East Asia and Africa. Researchers found that counterfeit artesunate tablets contained no active ingredients or dangerously small amounts, contributing to malaria parasite resistance.
Researchers found that dreams after 9/11 showed more intense imagery but not longer or more bizarre content, contradicting expectations. The study suggests a link between the traumatic event and increased emotional intensity in dreams.
Researchers found that strong Aha! sensations involve minimal metacognitive processes and unconscious restructuring, contrasting with conscious mental restructuring. The study provides new insights into the neural mechanisms underlying cognitive insight.
Two distinct gas and dust clouds formed by different types of supernova explosions are detected in DEM L316 nebula, with one shell containing more iron suggesting a Type Ia supernova. The two shells appear to be aligned by chance in the sky due to their vastly different ages.
Researchers are developing three-dimensional photonic crystals that can reflect single colors of light, enabling compact optical semiconductor components. This technology has the potential to replace electrical signals with light-based transmission, leading to faster and more efficient data transfer in telecommunications.
Researchers created a hybrid device combining force and fluorescence to detect subtle conformational changes in biomolecules at extremely low applied forces. By probing the dynamics of Holliday junctions, they mapped transition states and deduced the structure of transient species.
The Kansas Wind for Schools program has selected several rural schools to receive Skystream 3.7 wind turbines as part of the National Renewable Energy Laboratory's initiative. The small turbines will become part of the curriculum at these schools, teaching students about wind energy and its applications.
A multi-scale modeling study at Penn reveals a new theory of behavior for domain-wall motion in ferroelectric materials, reproducing experimental data long at odds with existing theories. The study confirms that small dipoles play a key role in smoothing transition regions as the wall moves.
The 2008 IOP Awards have recognized significant contributions to physics across various fields. Notably, Professor Rowan-Robinson's research on galactic dust has shed light on the main populations of galaxies in our universe.
Astronomers have used XMM-Newton and Suzaku to measure the diameters and masses of neutron stars, confirming Einstein's predicted distortion of space-time. The technique involves observing the iron lines produced by hot atoms swirling around neutron stars.
Astronomers have pioneered a new technique to measure the properties of neutron stars, allowing them to study the extreme conditions under which matter is packed. Using XMM-Newton and Suzaku satellites, scientists observed distorted space-time around three neutron stars, confirming predictions by Einstein's theory of general relativity.
Eight scientists and one politician have been recognized by ASBMB for their groundbreaking work, advancing the field of biochemistry and molecular biology. The awards will be presented at Experimental Biology 2008 meeting in San Diego.
A study of women's moods during IVF found a strong relationship between negative mood and multiple embryo transfer. Women with more negative moods perceived lower chances of multiple pregnancies and rated their choices as riskier. This research aims to improve understanding of emotional health during IVF treatment.
Astronomers discover a bright arc of extremely hot gas in a massive galaxy cluster, suggesting an exceptionally dramatic event, such as a collision between two clusters. The temperature and mass of the cluster make it a giant among giants, with a quadrillion suns' worth of mass bound by its hot gas.
A new study found that breastfeeding rates among inner-city infants born in Baby-Friendly hospitals were comparable to the overall US population, suggesting positive effects of the initiative. The study identified factors influencing breastfeeding duration, including postpartum support and education.
Richard Lifton was honored with the prestigious Alfred Newton Richards Award at the WCN 2007, recognized for his outstanding basic research in nephrology. His work has significantly advanced our understanding of the molecular and genetic basis of renal and cardiovascular disease.
A recent analysis of the Global Burden of Disease Study (GBDS) and subsequent Global Burden of Disease Initiative (GBDI) reveals that childhood deafness is overlooked in disease control priorities. An estimated 718,000 infants worldwide suffer from permanent bilateral hearing impairment annually.
Researchers have confirmed that the 'anomalous arms' in galaxy M106 are regions of gas violently heated by shock waves, not jets of particles. The team's analysis shows clear consistency with their scenario, providing insight into the formation and evolution of these mysterious structures.
Researchers at UCSD School of Medicine have identified two variants of the natural tumor suppressor enzyme PHLPP, which control three different disease pathways. The findings suggest that therapies targeting PHLPP1 could improve insulin regulation in diabetes, while therapies targeting PHLPP2 could enhance cell survival in heart and ne...
Researchers have created a material with a refractive index of 1.05, making it an ideal building block for anti-reflection coatings. The new coating could lead to more efficient solar cells, brighter LEDs, and smarter lighting systems by controlling light properties.
The research team created field-effect transistors, diodes, sensors, and current-producing nanogenerators by bending zinc oxide nanowires and nanobelts. These devices take advantage of the relationship between mechanical and electronic coupled behavior in piezoelectric nanomaterials, enabling novel applications.
Scientists have sequenced the genome of symbiotic bacteria in giant clams living near hydrothermal vents, revealing a unique chemosynthetic process that allows them to thrive in dark depths. The bacteria fix carbon and produce nutrients for the clam, similar to how chloroplasts work in photosynthesis.
A novel Brandeis University study confirms that sight and sound use similar neural mechanisms for encoding and retrieving short-term memories from both senses. The study found that the errors made in memory for sounds are the same types of errors made in memory for sight, suggesting a common brain process.
Researchers develop atomic interferometers to improve navigation accuracy, testing fundamental laws of physics. The technology could lead to more precise location tracking and better understanding of gravity.
Astronomers have identified an X-ray-emitting binary star system in the Small Magellanic Cloud, 170,000 light-years from Earth. The system, HD 5980, features two stars with intense winds that collide and produce multimillion-degree gas radiating brilliantly in X-rays.