The UCSD system uses a clever image indexing technique that allows it to cover larger collections of images at a lower computational cost. It outperforms existing approaches in terms of annotation and retrieval accuracy, as well as efficiency.
A Sandia National Laboratories handheld device determines if a patient has gum disease and quantifies its advancement in minutes from a tiny saliva sample. The device's technology also shows promise for detecting biotoxins, improving prostate and breast cancer diagnosis, and measuring animal serum in vaccines.
A new device created by MIT researchers allows biologists to physically arrange cells to be touching, close but not touching, or completely separated. This enables researchers to study cell interactions and changes over time without breaching the divide, leading to insights into liver cell differentiation and cancer.
A study found that overfishing large sharks leads to an explosion of their ray and skate prey species, which in turn devastates scallop populations. The decline of great sharks has triggered cascading effects throughout coastal food webs, impacting local communities that depend on healthy fisheries.
LCT reports a major breakthrough in islet transplantation, with a human patient showing evidence of live porcine islet cells and insulin production ten years after the transplant. The study demonstrates the long-term safety and viability of LCT's encapsulated porcine islets without immunosuppression.
Evo-devo researchers are urging scientists to select new model organisms based on their ability to shed light on specific evolutionary themes, rather than just phylogenetic position. The current choice of model organisms has been criticized for being too narrow and not representative of the diversity of life on Earth.
Astronomers have described the double asteroid Antiope in unprecedented detail, revealing its unique orbit and shape. The asteroid consists of two rubble-pile chunks of material, tidally locked and rotating around each other at the same speed as they orbit.
Researchers at the University of Illinois have discovered a technique to make metal memory, allowing metals to revert to their original shapes when heated. The discovery could lead to vanishing dents and other physical feats.
Research suggests that exclusive breastfeeding significantly lowers a baby's risk of postnatal infection with HIV. In contrast, introducing animal milks and solid foods before 14 weeks increases the risk. The study's findings warrant a revision of current infant-feeding guidelines.
Scientists discovered a protein that enables cells to bypass damaged DNA during replication, averting cell suicide. However, this protein also makes errors that may contribute to the development of cancer.
A team of Princeton University chemists has discovered a new method to synthesize molecules without toxic catalysts, reducing the risk of hazardous barriers in drug development. This breakthrough opens up new possibilities for working with ketones and aldehydes, potentially leading to more efficient synthesis of beneficial enantiomers.
Researchers at the Salk Institute discovered that GUN1, a nuclear-encoded protein, plays a crucial role in transmitting distress signals from damaged chloroplasts to the nucleus, triggering a shutdown of photosynthetic genes. This finding sheds light on the complex communication between organelles and the nucleus.
Researchers at the University of Manchester found that older women with breast cancer receive lower levels of care compared to younger women. This includes reduced likelihoods of needle biopsy, surgery, and radiotherapy, which can lead to higher local recurrence rates and mortality.
A study found that leisure-time physical activity is associated with a lower risk of work-related repetitive strain injury. The researchers analyzed data from the Canadian Community Health Survey and discovered that being physically active during free time can protect against this type of injury.
Researchers at UCSD School of Medicine discovered a cellular receptor involved in triggering cell death is also necessary for tissue repair and regeneration after liver injury. p75 neurotrophin receptor promotes the initial activation of hepatic stellate cells to stimulate new hepatic cell proliferation.
A new study estimates that 6.9 million US adults have arthritis-attributable work limitation (AAWL), with 1 in 20 working age adults reporting AAWL, and 1 in 3 among those with arthritis. Adults with AAWL have poor physical health and function, including high body mass index, joint pain, and frequent doctor's office visits.
Researchers have developed a simple and scalable assembly to integrate carbon nanotube structures on silicon chips, improving thermal management without increasing device weight. The cooling performance is comparable to that of copper, a significant advantage in miniaturized electronics.
A symposium explores the evolution of low energy nuclear reactions, with researchers presenting findings that suggest these phenomena have evolved and are supported by repeatable experimental data. Evidence includes excess heat generation, documented nuclear reaction products, and detection of high-energy atomic particles.
New research from Johns Hopkins University suggests that children who experience frequent transitions in their living situation are more likely to act out and have behavioral problems. The study found a persistent association between family instability and white children's behavior problems, but no such link for black children.
A recent study published in The Lancet found that eicosapentaenoic acid (EPA) supplementation reduced major coronary events by 19% in Japanese hypercholesterolaemic patients taking statins. This significant reduction also translated to a lower incidence of non-fatal myocardial infarction, unstable angina, and coronary revascularisation.
A new ocean model at MIT captures the diversity of underwater forests, simulating the growth and population patterns of microscopic plants that produce half the oxygen we breathe. The model's approach reflects natural selection, allowing for a more accurate representation of real-world ecosystems.
Justin Barone's research focuses on creating biodegradable plastics from agricultural byproducts like poultry feathers. He has developed polymers with improved strength, water resistance, and longevity by modifying keratin amino acid structures and using natural additives.
Researchers, Lucille Sanzero Eller and Elise Lev, are developing a targeted intervention to address physical and psychological symptoms in men with prostate cancer. The study aims to improve quality of life by reducing symptoms such as urinary and bowel incontinence and depression.
A team of astronomers has assembled the most complete picture yet of a pair of asteroids orbiting each other, thanks to combined observations from professionals and amateurs. The asteroid 90 Antiope is depicted as two slightly egg-shaped rubble piles locked in orbit, with uncertainties remaining from previous studies.
A study by the University of Virginia found that only a small percentage of elementary school classrooms provide high-quality instruction, leading to mediocre student outcomes. High-quality teaching involves active learning environments, teacher-student interaction, and emotional support, but is often lacking in US schools.
A new, nanoporous ceramic filter developed by Lehigh University engineers could make dialysis sessions more efficient and shorter. The filter promises to double the amount of toxins removed during dialysis and increase glomular filtration rate (GFR), leading to improved mortality rates and quality of life for patients.
The partnership aims to promote high-quality scientific knowledge across disciplinary boundaries, addressing key questions on climate change and polar science. The journal will cover topics such as glacier mass balance, sea ice interactions, and palaeoclimate reconstruction.
Air crew who work repeated long haul routes are at risk of menstrual cycle problems, transient psychotic disorders, and major affective disorders due to the effects of jet lag. The symptoms can last for several days and include disrupted sleep patterns, mood changes, and gastrointestinal difficulties.
Researchers at Gladstone Institute of Cardiovascular Disease identified a critical genetic factor, microRNA miR-1-2, that regulates heart form and function. The study found that deletion of this microRNA causes defects in heart growth, function, and electrical conduction, potentially leading to new treatments for cardiovascular diseases.
A study published in The Lancet found that exclusive breastfeeding can significantly reduce the risk of HIV transmission from mother to child under six months. Infants who received formula milk or solids were nearly twice as likely to be infected, highlighting the importance of breast milk protection.
Excluding consumers from promotions can actually increase their interest in a product, as they perceive others as more savvy buyers. In experiments conducted by Duke University's Fuqua School of Business, researchers found that naive consumers are attracted to products with freebies not available to them, leading them to believe that e...