Computer vision algorithms have made significant progress in tasks such as object identification and categorization. However, they struggle with determining whether two objects in an image are the same or different. Researchers at Brown University found that this limitation stems from the inability of these algorithms to individuate ob...
Researchers have found that boron-based nanoclusters exhibit highly stable and symmetric structures with interesting magnetic properties, making them potential molecular magnets or assembled into magnetic nanowires. The study also sheds light on the structure and chemical bonding of bulk boron lanthanides.
New research from Brown University found that Medicare Advantage plan rankings may not accurately reflect the quality of care provided to disadvantaged populations. After adjusting for social risk factors, plans serving these populations improved considerably in the rankings.
Researchers discovered that visual perceptual learning can undergo reconsolidation, with a reconsolidation window closing before 3.5 hours after initial recall. The study also found similarities between consolidation and reconsolidation processes in the brain.
Researchers at Brown University discovered that graphene forms sharp, saw-tooth kinks called quantum flexoelectric crinkles, which produce intense electrical charges. These charges can be used to direct nanoscale self-assembly and manipulate biomolecules like DNA.
A new study published in PLOS Medicine found that patients covered under Medicare's fee-for-service plan spent more time in nursing homes after hip fracture hospitalization, yet saw slightly worse health outcomes. In contrast, those covered under Medicare Advantage had shorter stays and similar or better health outcomes.
Researchers found that up to 40-50% of the spectral signal on Ceres could be explained by organics, a much higher concentration than previously reported. The findings raise questions about the source of the material, with two competing possibilities: internal production or delivery by an impact from an organic-rich comet or asteroid.
A new study published in Nature Communications suggests that individuals who are tolerant of ambiguity are more likely to cooperate with and trust others. The study found a positive correlation between ambiguity tolerance and cooperation, as well as willingness to trust others despite uncertainty about their intentions.
A new study by Brown University researchers found that children with early-life obesity had lower perceptual reasoning and working memory scores compared to lean children, while also indicating potential lower IQ scores. Obesity was shown to dysregulate hormones affecting multiple brain regions, leading to cognitive difficulties.
Researchers used a novel approach to study the movement of ancient birds and reptiles, finding that many assumed poses were impossible due to ligament limitations. This challenges traditional views on pterosaur flight and provides new methods for assessing joint mobility in extinct species.
Chemists at Brown University have developed a method to detect the intermediate state in liquid crystals, where order starts to form in discrete patches. This breakthrough could provide insights into slow molecular motion in various natural phenomena, such as Alzheimer's disease and protein tangles.
Brown University researchers found a new strategy to stimulate autophagy, the cellular recycling process, by manipulating a transcription factor. The approach increased lifespans of worms and flies, and hinted at potential treatments for Alzheimer's disease and ALS in human cells.
A study finds that ophthalmology residents face substantial burnout and depression burdens, affecting patient care. Hospitals can improve support by offering wellness programs and ensuring free time for residents.
A study found that vegan and traditional kimchi have nearly identical microbial communities after fermentation, with lactobacillus and leuconostoc dominating the samples. The findings suggest that vegan kimchi can provide probiotic benefits similar to traditional kimchi.
Experiments show that asteroids can retain up to 30% of their water content after impact, suggesting a mechanism for water delivery to the early Earth. This process could also explain later water activity in the solar system.
Researchers have developed a new theory to explain why stretching or compressing metal catalysts can make them perform better. The theory suggests that applying a strain to a catalyst's atomic lattice can tune its reactivity, enabling fine-tuning of catalyst performance throughout different reaction steps.
Researchers from Brown University and Harvard Law School urge the US to allow mitochondrial replacement therapy to prevent fatal mitochondrial diseases in children. The procedure replaces mutation-bearing mitochondria with donated mutation-free ones, saving lives and alleviating human suffering.
Researchers found that people closely watch lip movement and shape when perceiving speech, with subtle distinctions between vowel sounds suffering without these cues. The study's findings have implications for designing more intelligible avatars and improving communication devices for the hearing impaired.
A new study finds that ADHD medications increase brain glutamate, associated with subsequent positive emotional changes. The research provides clues about the effects of these drugs on healthy brains and hints at a previously undiscovered link between glutamate and mood.
Brown University engineers developed a new method of measuring the stickiness of micro-scale surfaces, which could aid in designing and building micro-electro-mechanical systems (MEMS). The technique uses thermal vibrations to calculate work of adhesion, allowing for the evaluation of material properties and surface textures.
A study by Brown University researchers maps the mineralogy of the South Pole-Aitken basin, a giant impact crater on the Moon's far side. The research identified four distinct mineralogical regions within and around the basin, providing insights for future lunar exploration and landing site selection.
Brown University researchers discovered that mesoscale eddies in the global ocean tend to merge into larger ones, unlike smaller eddies which break up into smaller scales. This finding could help develop coarser-grained ocean simulations that better capture ocean dynamics.
Researchers found that when memory demands are high, signals in the brain correlate to reinforcement learning become stronger, suggesting a cooperative interaction between the two systems. When participants can hold information in mind, signals associated with reinforcement learning weaken, indicating an increased role for working memory.
Researchers from Brown University have developed a new method, SWIF(r), to detect adaptive genetic mutations. The technique combines multiple statistical tests into a single machine-learning framework, allowing for more accurate identification of beneficial mutations and shedding light on the evolutionary history of populations.
A new study found that Rhode Island's opioid addiction treatment program for inmates reduced post-incarceration drug overdose deaths by 61% and contributed to an overall 12% reduction in overdose deaths statewide. The program provides medications for addiction treatment (MAT) for those who need it, with linkage to community treatment a...
Researchers at Brown University have developed a new titanium-based material for making lead-free, inorganic perovskite solar cells. The material has favorable properties for solar applications and can be tuned to improve efficiency.
Scientists at Brown University have created a way for robots to learn high-level abstract representations of their surroundings, enabling them to plan and act more autonomously. By using machine learning algorithms, robots can distill complex sensory data into simple, text-based descriptions that facilitate planning and skill execution.
Brown University researchers demonstrate that terahertz frequency data links can maintain acceptable bit-error-rates after bouncing off objects, enabling the possibility of non-line-of-sight links. The study's findings support the idea of terahertz local-area networks and could pave the way for future wireless networks with increased b...
A new study finds that climate change can cause political and diplomatic problems at US military bases, including unexpected cleanup costs and conflict between the US and countries hosting the bases. Rising temperatures and sea levels threaten to remobilize toxic waste, putting personnel and local inhabitants at risk.
A new study found that boosting Sirt4 gene activity extends healthy lifespan in fruit flies, with a 20% increase in longevity seen in modified flies. The researchers also discovered that Sirt4 plays a crucial role in regulating metabolism and fasting responses.
Researchers developed a one-step process to enable peak BCI performance within three minutes, allowing users to control computer cursors just by imagining movement. The new approach streamlines calibration and reduces expert intervention, bringing the system closer to clinical availability.
Researchers found a correlation between seismic tremor and lunar cycles before a surprise eruption of Ruapehu volcano in 2007. The study suggests that tidal forces could provide advanced warning of certain types of volcanic eruptions, which are otherwise hard to predict.
Researchers at Brown University aim to store billions of terabytes of data in a single flask of liquid using synthetic molecules. The project, backed by a $4.1 million DARPA award, has the potential to enable computation through chemical reactions and improve information densities.
A team of researchers has described atom-by-atom changes in a family of proteins linked to amyotrophic lateral sclerosis (ALS), a group of brain disorders. The study suggests that small chemical changes can lead to big changes in assembly and disease-associated aggregation, offering new insights into disease mechanisms.
After the Affordable Care Act eliminated cost sharing for screening mammograms, mammogram rates increased six percentage points among older women, according to a Brown University study. The study found that eliminating copayments led to an increase in their use and was concentrated among women with more education.
Researchers have discovered an enzyme called SNRK that regulates inflammation in white fat tissue and promotes brown fat metabolism. This finding suggests a potential new target for therapies aimed at curbing obesity and its complications.
A new clinical trial shows that using a generic skin cream containing fluorouracil (5-FU) for two to four weeks can reduce the risk of squamous cell carcinoma (SCC) needing surgery by 75% within a year. The study, led by Dr. Martin A. Weinstock, involved over 900 military veterans at high risk for keratinocyte carcinoma skin cancer.
Researchers at Brown University developed a new technique that enhances NMR signal strength and versatility for studying nanomaterials and exotic states of matter. By using flat NMR coils, the team was able to optimize signal detection for various sample shapes and experiment types.
Researchers at Brown University have created software that allows users to control robots remotely using virtual reality, enhancing the manipulation tasks of autonomous robots. The system uses a robot's sensors to create a point-cloud model of the environment, transmitted to a remote computer connected to a virtual reality headset.
A study at Brown University reveals a previously unknown set of matching barrel structures in the cortex, providing insight into how sensory information is processed. The discovery suggests that layer six may play a greater role than previously realized in communicating with the thalamus.
Research found that leukemia patients who rely on blood transfusions face difficulties enrolling in hospice care, leading to shorter hospice stays and delayed access to palliative care. The study suggests that adding support for transfusions to the Medicare hospice benefit could maximize its benefits.
Researchers propose a new scenario for ancient clay mineral formation on Mars, suggesting clays formed during the planet's creation from molten magma. The steamy atmosphere created by the magma ocean could have converted vast swaths of the surface to clay, leading to the widespread distribution seen today.
A new study isolates two key practices in mindfulness-based cognitive therapy (MBCT) and finds they have distinct effects on attentional control and emotional non-reactivity. The findings suggest that focusing on attention can improve attentional control, while open monitoring promotes emotional non-reactivity.
Researchers propose using gravitational wave experiments to detect merger events at redshifts greater than 40, which could indicate the presence of primordial black holes or non-Gaussianity in the early universe. A detection would bolster theories about dark matter, while a non-detection would cast doubt.
Scientists have discovered that heterogeneities in the Earth's mantle are at least a kilometer in size, enabling the survival of their chemical signature during magma transport. This finding has significant implications for our understanding of mantle convection and its impact on tectonic plate movement.
Researchers found that beta wave activity is not sustained but rather occurs in discrete bursts, and the timing of these bursts affects perception. The study's findings provide a better understanding of how beta waves help filter distractions to process sensations.
A study of over 19,000 knee dislocation cases found obesity increases complications and costs of care. Obese patients are more likely to experience vascular injury, which can lead to amputation if left untreated. Hospital stays for obese patients with vascular injury were 15.3 days, costing $131,478 on average.
A Brown University and Hasbro team is developing a smart robotic companion, ARIES, to assist older adults with simple but challenging tasks. The project aims to add artificial intelligence capabilities to the existing Joy for All Companion Pets.
A new study demonstrates that babies can learn, remember and use contextual cues in a scene to guide their search for objects of interest. The study found that 6-month-old babies showed steady improvement in finding faces in repeated scenes, but didn't get any quicker or more accurate in finding faces in new scenes.
Researchers propose a new method for directly detecting dark matter by exploiting the interaction between superfluid helium and potential dark matter particles. The strategy involves a tub of helium and a positively charged metal pin array to amplify the tiny energy signature of a released atom, enabling the detection of single atoms a...