74,921 articles mezi dny 1.12.2019 a 31.12.2020

AI-powered microscope could check cancer margins in minutes

Researchers from Rice University and MD Anderson Cancer Center have created a microscope that uses artificial intelligence to quickly and inexpensively image large tissue sections at high resolution with minimal preparation. If clinically validated, the DeepDOF microscope could allow surgeons to inspect tumor margins within minutes.

Alzheimer's disease: regulating copper in the brain stops memory loss among mice

Alzheimer's disease is characterized by the presence of amyloid plaques1 in the patient's brain. These plaques sequester copper, and contain approximately five times as much as a healthy brain. Two CNRS scientists from the Coordination Chemistry Laboratory recently developed, with their colleagues from the Guangdong University of Technology and Shenzhen University (China), a molecule that...

Artificial intelligence classifies supernova explosions with unprecedented accuracy

Scientists from the Center for Astrophysics | Harvard & Smithsonian have trained machine learning software to classify supernovae without the traditional use of spectra. The project--the first to use real supernovae data to inform its artificial intelligence--is 82% accurate. Currently, scientists take spectra of 10-percent of the ~10,000 supernovae discovered each year. When the Rubin Observatory...

Big data will analyze the mystery of Beethoven's metronome

Data science and physics research at the Universidad Carlos III de Madrid and UNED has analysed a centuries-old controversy over Beethoven's annotations about the tempo (the playing speed) of his works, which is considered to be too fast based on these marks. In this study, published in the PLOS ONE journal, it is noted that this deviation could be explained by the composer reading the metronome...

Can water saving traits help wine survive climate change?

Climate change is expected to make many grape-growing regions too hot and dry to produce high-quality wine from traditional varieties. But scientists at the University of California, Davis, have found that wine grape varieties from regions that are more prone to stress have traits that could help them cope with climate change.

Catalyst research: molecular probes require highly precise calculations

Catalysts are indispensable for many technologies. To further improve heterogeneous catalysts, it is required to analyze the complex processes on their surfaces, where the active sites are located. Scientists of Karlsruhe Institute of Technology (KIT), together with colleagues from Spain and Argentina, have now reached decisive progress: As reported in Physical Review Letters, they use calculation...

Cataract surgery in infancy increases glaucoma risk

Children who undergo cataract surgery as infants have a 22% risk of glaucoma 10 years later, whether or not they receive an intraocular lens implant. The findings come from the National Eye Institute (NEI)-funded Infant Aphakic Treatment Study, which today published 10-year follow-up results in JAMA Ophthalmology. NEI is part of the National Institutes of Health.

Change in global precipitation patterns as a result of climate change

The Earth's climate system is largely determined by the differences in temperature between the tropics and the poles. Global warming is likely to cause global atmospheric circulation to change and progressively revert to a situation similar to that of 5,000 to 10,000 years ago. This is the conclusion of a study published in Nature Communications.

Childhood intervention can prevent 'deaths of despair'

Mortality rates among young adults are rising in the US due in part to 'deaths of despair' -- preventable deaths from suicide, drug overdoses and alcohol-related liver disease. An intensive childhood intervention program called Fast Track could help reduce these deaths by reducing risky behaviors in adolescence and young adulthood, finds new research from Duke University and the Conduct Problems...

Computational model reveals how the brain manages short-term memories

Salk scientists have developed a new computational model showing how the brain maintains information short-term using specific types of neurons. Their findings, published in Nature Neuroscience on December 7, 2020, could help shed light on why working memory is impaired in a broad range of neuropsychiatric disorders, including schizophrenia, as well as in normal aging.

COVID-19 as leading cause of death in US

This Viewpoint uses Centers for Disease Control and Prevention data to compare the COVID-19 mortality rate in 2020 with prior leading causes of death (heart disease, cancer, lung disease and injury) to put into context the cost of the infection in loss of life in the United States.

Developing new classification criteria for improving antiphospholipid syndrome research

An international team of more than 80 collaborators led by Hospital for Special Surgery (HSS) investigators is developing new classification criteria for clinical research of antiphospholipid syndrome (APS), a life-threatening autoimmune clotting disorder. In a paper published online in Arthritis Care & Research, the investigators reported on the first two of four phases of criteria development.

Drinking water significant source of microplastics in human diet

In an effort to understand the potential risks associated with exposure to micro/nanoplastics, the?Emerging Risks of Micro/nanoplastics: Perspectives From Diverse Sectors symposia at the 2020 Society for Risk Analysis virtual Annual Meeting, December 13-17, 2020,?aims to highlight the current state of knowledge associated with physical and chemical transformation, hazard characterization,...

Electron-producing microbes power sustainable wastewater treatment

WSU researchers have developed a sustainable wastewater treatment system that relies on electron-producing microbial communities to clean the water. The work could someday lead to reduced reliance on the energy-intensive processes that are used to move and treat wastewater, which accounts for as much as two percent of the total electrical energy consumption in the United States.

Errant DNA boosts immunotherapy effectiveness

DALLAS - Dec. 17, 2020 - DNA that ends up where it doesn't belong in cancer cells can unleash an immune response that makes tumors more susceptible to immunotherapy, the results of two UT Southwestern studies indicate. The findings, published online today in Cancer Cell, suggest that delivering radiation - which triggers DNA release from cells - before immunotherapy could be an effective way to...