A Rutgers-led study estimates fishes contribute about 16 percent of the total carbon that sinks below the ocean's upper layers, with roughly 1.65 billion tons of carbon in feces and other matter annually. The impact of climate change and seafood harvesting on this process is still unclear.
Researchers found that radar overestimates precipitation rates when partially frozen droplets are larger than their solid and liquid counterparts. The phenomenon, known as reflectivity maxima above freezing (RMAF), is more common on windward slopes of mountain ranges.
A unique brain protein measured in the blood could be used to diagnose Alzheimer's disease decades before symptoms develop. Elevated glial fibrillary acidic protein (GFAP) levels in the blood are associated with increased amyloid beta in the brain, a known indicator of Alzheimer's disease.
Researchers from Ruhr-Universität Bochum and University of Copenhagen developed an approach to predict optimal composition and confirm accuracy with high-throughput experiments. The strategy enables identification of complex mechanisms at surfaces consisting of five chemical elements, overcoming limitations of previous catalysts.
A new study found that children's innate immune systems rapidly target and clear the new coronavirus, preventing severe disease. The research showed that special cells in the immune system activate neutrophils to heal damaged tissues and resolve infections, providing protection from COVID-19.
Experts discuss the ethics of criminalizing false vaccine information. Melinda Mills argues that deliberate intent to spread malicious disinformation should be considered criminal due to preventable deaths. Jonas Sivelä believes this approach may not address underlying issues like vaccine hesitancy and lack of trust in institutions.
A study of over 7,100 veterans found that those with a combination of high depression, low social support, and low psychological resilience reported poor well-being. Higher psychological resilience mitigated the impact of depression on well-being.
The new sensor measures small pressure changes in the body with high sensitivity and can detect pressure changes of just 2 kilopascals. It is designed to be implantable for long-term health monitoring and has a resolution of 2.0 kilopascals.
Scientists at DGIST create a method to image wet cell membranes without fixing or drying them, providing detailed information on cellular molecules. The technique uses graphene to protect cells from desiccation and degradation, allowing for up to ten minutes of imaging in ultra-high-vacuum environments.
Researchers identified two novel vascular smooth muscle cell subsets under high hydrostatic pressure, which promote or exacerbate endothelial dysfunction. These subsets are associated with hypertension and contribute to the pathogenesis of cardiovascular diseases such as coronary artery disease and stroke.
Researchers have developed a hydrogel that slowly releases mRNA nanoparticles, activating T cells and stimulating antibody production in mice with melanoma. The treatment causes tumors to shrink and prevents metastasis, demonstrating great potential for long-lasting cancer immunotherapy.
Most teen bullying occurs among friends and friends-of-friends as they compete for higher social rungs, highlighting the need to de-emphasize popularity contests. Researchers found that those with overlapping friendships are more likely to bully each other, leading to significant emotional pain and decreased school attachment.
A recent study published in the Journal of Marketing found that linguistically feminine brand names are perceived as warmer and more likable, leading to increased purchase intentions. Researchers discovered that brands with feminine names are more likely to be well-ranked on Interbrand's Global Top Brands list.
Researchers discovered white matter hyperintensities are more common and severe in people with frontotemporal dementia compared to Alzheimer's disease and healthy controls. The study suggests these changes contribute to cognitive problems rather than vascular factors.
A survey of 20 European countries found that only 4 prioritize COVID vaccinations for individuals with severe mental disorders. The authors call for coordinated action to protect these vulnerable patients. Many countries do not mention mental health in their vaccination priority guidance, leaving patients at risk.
A recent study found that more than half of COVID-19 patients discharged from hospital show signs of heart damage, including inflammation and scarring. The research used MRI scans to detect the damage in patients who had raised troponin levels indicating a possible problem with the heart.
Researchers found large, highly radioactive particles containing cesium released from damaged reactors during the 2011 nuclear disaster. The particles have high levels of activity and could provide valuable forensic clues about the events leading up to the accident.
Researchers at UC San Diego created a four-legged robot that doesn't need electronics, using pressurized air for controls and locomotion. The robot mimics mammalian reflexes and can navigate uneven surfaces with the help of pneumatic circuits.
A FAU professor suggests using history to make mathematics education more exciting and meaningful, by highlighting famous mathematicians' mistakes and the evolution of standards. This approach aims to encourage deeper learning and build confidence among students.
A daily oral combination therapy has been found to be reliable, safe and effective for long-term treatment of uterine fibroids. The therapy, which combines relugolix with small doses of estrogen and synthetic progesterone, led to dramatic improvements in fibroid-related measures such as volume of menstrual blood loss and pain.
Researchers discovered that cells within a single organ can synchronize their circadian rhythms without receiving timing cues from the brain or other external signals. This finding suggests a novel mechanism of coordination, where cells exchange molecules to stay in phase.
Haotian Wang, a chemical and biomolecular engineer at Rice University, has been selected as a 2021 Alfred P. Sloan Research Fellow for his outstanding contributions to the field of electrochemistry. He will receive a two-year grant of $75,000 to advance his research on electrocatalysis and sustainable chemicals production.
Researchers have developed a novel method for producing highly efficient X-ray detectors using 3D aerosol jet-printing, enabling improved performance of medical imaging devices. The new detectors utilize perovskites and graphene, resulting in record sensitivity and a four-fold improvement over existing technology.
A comprehensive review of 105 prior studies found that pre-recorded videos and video supplements improve learning outcomes, with a strong effect on teaching skills
Scientists have developed a wearable microfluidic sensor to measure lactate concentration in sweat, offering real-time insights into muscle condition during exercise. The device is designed for comfort and practicality, using a non-irritating material and a microfluidic system for sweat collection.
A recent study from Indiana University found that supply-controlling and harm-reduction policy measures implemented in response to the opioid epidemic may have unintended consequences, including motivating users to switch to alternative illicit substances, leading to higher overdose mortality.
A UNF biology professor has been awarded an NSF grant to continue researching Lake Huron's algal mats, which are thought to hold secrets of life's origins. The research will explore bacterial communication and microbial community structures.
Researchers found that older gay men living with HIV reported having supportive relationships with family, friends, or informal partners, whereas those without HIV relied mainly on primary romantic partnerships. The study highlights the importance of social support in managing chronic illness, including HIV.
Researchers have successfully demonstrated the efficacy of ozone in neutralizing Coronavirus on various surfaces, including aerosols and hard-to-reach locations. The study shows that ozone disinfection can be an inexpensive and readily available solution to combat COVID-19, with a high statistical success rate of above 90%.
A neural network system analyzes photographs to rank and distinguish suspicious skin lesions, suggesting it can aid clinicians in spotting precancerous marks during clinical visits. The platform's performance was demonstrated with a sensitivity and specificity of 90.3% and 89.9%, respectively, in identifying 'ugly duckling' lesions.
Researchers have defined how antibodies recognize phosphohistidine, a central role in some cancers like liver and breast cancer. The study provides insights into antibody structures and enables scientists to engineer more efficient antibodies.
Researchers are now able to use genomic alterations of tumors to determine prognosis and best treatment options for pediatric brain tumors. This approach has significantly changed the field of neurosurgery, enabling more effective treatment with fewer side effects.
The new online tool provides a nuanced understanding of the pandemic's impact across sub-Saharan Africa, accounting for regional risk factors and varying healthcare access. The study reveals that different drivers of viral spread, such as connectivity and chronic diseases, significantly affect local outbreak trajectories.
Researchers found a significant link between prolonged sedentary time and decreased ability to focus on tasks despite distractions. Adults with obesity or overweight who spent more time sitting for extended periods showed poorer performance on executive function tests.
A phase I clinical trial reveals adipose-derived stem cells alleviate symptoms of lymphedema, improving upper extremity function and reducing treatment use. Patients experienced sustained benefits for up to four years after treatment.
Changes in wintering bird communities are significantly faster due to less sedentary behavior and warming temperatures, while breeding community changes are slower. The study tracked over 1,200 species since the 1980s, with rapid shifts towards southern species in Europe and North America.
Researchers at Penn Medicine found that genetically manipulating a fly's Imitation SWItch/SNF (ISWI) gene led to marked sleep disturbances, memory problems, and social dysfunction. The study suggests that targeting sleep may improve symptoms in children with neurodevelopmental disorders
Scientists have discovered that the high silica content in ancient rocks formed in the Earth's mantle is linked to a significant change in the planet's interior around 2.5 billion years ago. This boundary may have been caused by changes in the mantle's flow, leading to the loss of extremely high temperatures.
A new study suggests that vaccinating all babies on the day of birth with BCG could reduce neonatal infections and death in areas with high infectious disease rates. The results also increase the possibility that the vaccine might be used to protect children and adults against COVID-19 and other new infectious diseases.
Researchers found that an enzyme from tomato fruitworm caterpillars causes stomatal closure in plants, inhibiting defensive emissions like airborne plant volatiles. This study may yield insights into plant stress tolerance and potential strategies for improving crop resilience to climate change.
Scientists used theoretical calculations to predict electronic states in topological insulators excited with laser beams, generating Dirac states that can act as if massless. This discovery may pave the way for new computers systems that waste less energy.
A University of Oregon scientist has identified myeloid-derived suppressor cells and immunosuppressive cytokine IL-10 as early predictors of treatment response in trauma cases. Abnormal immune suppression may lead to poor bone healing, motivating the need for biomarkers that can predict patient outcomes.
Researchers have found that subglacial lakes in Antarctica may be more hospitable to life than thought, thanks to geothermal heat. This heat can stimulate convection currents, allowing for dynamic flow and potentially supporting microbial life. The discovery opens up new avenues for exploring similar environments on icy moons and planets.
A study published in The BMJ found that COVID-19 deaths accounted for 15-20% of all sampled deaths in Zambia, contradicting the widely held view that the virus has largely skipped Africa. The virus was detected in 70 people, with most deaths occurring in the community and among older adults.
Scientists at MIT develop system that detects chemical and microbial content of air samples with greater sensitivity than a dog's nose. The miniaturized detection system, coupled with machine-learning process, can identify distinctive characteristics of disease-bearing samples, matching success rates of dogs in detecting prostate cancer.
A study by Jesús Bas and Núria Sebastián found that children recognize power and social hierarchies at a young age, with older children (18 months) exhibiting surprise when the person who yielded control sat in the chair. This suggests that children can infer social status without witnessing physical dominance.
A new CAD system uses convolutional deep neural networks to identify skin cancer earlier, analyzing multiple lesions and comparing them to a 'ugly duckling' metric. The technology improved upon previous systems with 90.3% sensitivity and 89.9% specificity.
A study by New York University researchers reveals the D614G mutation in SARS-CoV-2's spike protein renders the virus up to eight times more infectious. The mutation makes the virus more resistant to being cleaved and increases its ability to infect human cells, contributing to rapid spread.
A systematic review identified approaches to tackle loneliness and social isolation during the pandemic, including robotic dogs, mindfulness, and Tai Chi. The studies showed that these interventions could be effective even with social distancing measures in place.
A study by Mayo Clinic researchers has identified USP24 as a frequently missing gene in pediatric patients with neuroblastoma, an aggressive form of childhood cancer. The gene plays a crucial role in protecting cells against errors during cell division and its loss may contribute to the development of aggressive tumors.
Researchers found that people preferred drive-through clinics due to perceived safety, convenience, and reduced contagion. The study suggests drive-through clinics could rapidly vaccinate large numbers of people, transforming the COVID-19 pandemic's trajectory.
A team of paleoclimatologists found that a prolonged megadrought in Arid Central Asia hindered human movement and reduced overland travel between eastern and western Central Asia. This climate shift, lasting 640 years from 5820-5180 BP, isolated agricultural regions and delayed cultural exchange along the proto-Silk Road.
A Phase 3 clinical trial showed that a new medication, avacopan, is more effective than treatment with glucocorticoids in keeping patients with ANCA-associated vasculitis in remission for a year. Avacopan appears to work rapidly and may prevent the accumulation of disease-related damage.
Researchers developed a ceramic fuel cell with reduced nickel content, improving stability and performance by 1.5 times compared to conventional cells. The new technology suppresses reduction-oxidation failure, allowing for frequent start-ups in applications like electric vehicles.
Using sensor-based asthma inhalers may improve control of the condition and enhance the quality of life for caregivers. The study found that non-Hispanic Black participants experienced the greatest gains in asthma symptom control.
A study found that people with a loss-of-function variant of the ACTN3 gene, which lacks skeletal muscle protein α-actinin-3, have improved cold tolerance. This is due to increased muscle tone and a shift towards slow-twitch muscle fibers.
Radiological images confirm that COVID-19 can trigger autoimmune reactions leading to rheumatoid arthritis flares and other musculoskeletal disorders. Imaging helps explain prolonged symptoms and directs patients to the right physician for treatment.
Researchers report the first-ever observation of this unique reproductive strategy in Paranapiacaba Treefrogs. The study found that 3cm-long tadpoles hatch in water pools within bromeliad plant tanks and then transfer to a nearby stream to complete their development.
A study by University of Granada researchers reveals that psychological variables contributed to increased anxiety and depression among pregnant women during the COVID-19 pandemic. Women who gave birth during the pandemic reported greater stress in delivery processes and lower quality of care received.
A significant number of NHL patients achieved complete remission and progression-free survival with Kymriah, a personalized cellular therapy. The study demonstrated the durability of this approach, with most patients remaining in remission five years after treatment.