The rise in popularity of cryptocurrencies such as Bitcoin has the potential to change how we view money. At the same time, governments and societies are worried that the anonymity of these cashless transactions could allow criminal activities to flourish. Another less remarked issue is the energy demands needed to mint new coins for these cryptocurrencies.
For the first time, researchers have been able to record, frame-by-frame, how an electron interacts with certain atomic vibrations in a solid. The technique captures a process that commonly causes electrical resistance in materials while, in others, can cause the exact opposite--the absence of resistance, or superconductivity.
The increase in carbon dioxide concentration in the atmosphere has warmed the Earth since the beginning of the industrial era. Climate models try to project how much this warming trend will continue, but they differ in their global-mean temperature response to increasing concentrations of greenhouse gases.
Around 4.5 billion years ago, an interstellar molecular cloud collapsed. At its centre, the Sun was formed; around that, a disc of gas and dust appeared, out of which the earth and the other planets would form. This thoroughly mixed interstellar material included exotic grains of dust: "Stardust that had formed around other suns," explains Maria Schoenbaechler, a professor at the Institute of Geochemistry and Petrology at ETH Zurich. These dust grains only made up a small percentage of the entire dust mass and were distributed unevenly throughout the disc.
Non-alcoholic fatty liver diseases (NAFLD) and alcohol-related diseases (ALD) are currently the leading cause of chronic disease, cancer and mortality associated with this organ in developed countries.
Patients in advanced stages have a poor prognosis with regard to survival and quality of life. Similarly to cancer, liver diseases in their early stages are asymptomatic, and therefore, most patients are diagnosed in advanced stages. However, there is a lack of screening strategies in the field of public health for the detection of liver fibrosis.
Depending on the shape and orientation of their edges, graphene nanostructures (also known as nanographenes) can have very different properties - for example, they may ex-hibit conducting, semiconducting or insulating behavior. However, one property has so far been elusive: magnetism.
Bethesda, MD (Dec. 6, 2019) -- Gastric intestinal metaplasia (GIM), which is linked to non-cardia gastric cancer, is often detected during routine endoscopy, leading to questions about how patient care should be managed.
A team of researchers from the Georgia Institute of Technology and The Ohio State University has developed a soft polymer material, called magnetic shape memory polymer, that uses magnetic fields to transform into a variety of shapes. The material could enable a range of new applications from antennas that change frequencies on the fly to gripper arms for delicate or heavy objects.
A new study led by the Sainte-Justine University Hospital Centre and the University of Montreal, along with the Washington University School of Medicine in St. Louis, has found that transfusions using fresh red blood cells--cells that have spent seven days or less in storage--are no more beneficial than older red blood cells in reducing the risk of organ failure or death in critically ill children. The results are published online today in the Journal of the American Medical Association.
Aging adults are more likely to have - and die from - cardiovascular disease than their younger counterparts. New basic science research finds reason to link biological aging to the development of narrowed, hardened arteries, independent of other risk factors like high cholesterol.
Senior author Daniel Goldstein, M.D., of Michigan Medicine's Frankel Cardiovascular Center, says his team's new Circulation Research paper is the first to dissect the biological effect of aging from hyperlipidemia on atherogenesis.
A new study suggests that specialized immune cells that dampen inflammation and help repair the gut could be used as a potential therapy for children dealing with the painful symptoms of inflammatory bowel disease (IBD).
The research from BC Children's Hospital and the University of British Columbia shows that a specific type of T cell, called a Tr1 cell, produces a chemical signal that helps repair the barrier formed by cells lining the gut and encourages the production of protective mucus. This study was published in the December issue of Gastroenterology.
Children in low resourced countries are 100-200 times more likely to die after surgery than children in wealthy countries, according to a first-of-its-kind study published in Anesthesiology.
Two billion of the world's children lack access to safe surgery and anesthesia, and the need for pediatric surgery in low- and middle-income countries is growing, according to lead author Mark Newton, MD, a pediatric anesthesiologist at Monroe Carell Jr. Children's Hospital at Vanderbilt and Director of Anesthesia Global Health and Development in the Department of Anesthesiology.
PITTSBURGH--Carnegie Mellon University computer scientists have taken a deep learning method that has revolutionized face recognition and other image-based applications in recent years and redirected its power to explore the relationship between genes.
The trick, they say, is to transform massive amounts of gene expression data into something more image-like. Convolutional neural networks (CNNs), which are adept at analyzing visual imagery, can then infer which genes are interacting with each other. The CNNs outperform existing methods at this task.
ITHACA, N.Y.- Some problems are best solved with new tech or a flashy app. But sometimes adapting existing technology works best of all.
A new system developed by Cornell Tech researchers will allow thousands of patients of community health care workers in rural Africa to use a basic tool on their mobile phones - one that doesn't even require an internet connection - to provide feedback on their care anonymously, easily and inexpensively.
More than 1 million people have died in the 1800 magnitude 5+ earthquakes recorded worldwide since 2000.
Bridges are the most vulnerable parts of a transport network when earthquakes occur, obstructing emergency response, search and rescue missions and aid delivery, increasing potential fatalities.