Tech
Why do carbon dioxide levels in the atmosphere wax and wane in conjunction with the warm and cold periods of Earth's past? Scientists have been trying to answer this question for many years, and thanks to chemical clues left in sediment cores extracted from deep in the ocean floor, they are starting to put together the pieces of that puzzle.
Targeted content to reduce stress, anxiety during pandemic
Improvement similar to traditional psychotherapy
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CHICAGO --- Terrified you will contract COVID-19? Feeling down, lonely and wondering when you'll be able to safely see your friends in person again?
Two vaccines for malaria based on genetically engineered malaria parasites have been found to be safe in humans and show preliminary signs of protection, according to a pair of new phase 1/2a clinical trials. Although further work is needed to determine their effectiveness, the new vaccines represent a promising approach to create a long-sought yet elusive vaccine for malaria. Drug treatments and interventions like mosquito nets have reduced the health burden of malaria over the past few decades, but the disease continues to pose a huge public health challenge in developing countries.
A team of physicists at the University of Bristol has developed the first integrated photon source with the potential to deliver large-scale quantum photonics.
The development of quantum technologies promises to have a profound impact across science, engineering and society. Quantum computers at scale will be able to solve problems intractable on even the most powerful current supercomputers, with many revolutionary applications, for example, in the design of new drugs and materials.
The world's growing population and increasing human welfare will necessitate a 30-70% increase in food production over the next three decades. At the same time, the huge quantities of food needed must be produced in such a way that protects the environment and is resistant to climate change. If we are to succeed, it will require a complete overhaul of the way we produce food. Researchers from the University of Copenhagen, among others, have now created an overview of solutions that include a number of new technologies that can collectively address this global challenge.
Physicists have measured the flight times of electrons emitted from a specific atom in a molecule upon excitation with laser light. This has enabled them to measure the influence of the molecule itself on the kinetics of emission.
It might sound like science fiction, but scientists are preparing to build colonies on the moon and, eventually, Mars. With NASA planning its next human mission to the moon in 2024, researchers are looking for options to power settlements on the lunar surface. According to a new article in Chemical & Engineering News, the weekly newsmagazine of the American Chemical Society, nuclear fission reactors have emerged as top candidates to generate electricity in space.
A recent analysis of discourse on Facebook highlights how social media and an individual's sense of identity can be used to dehumanize entire groups of people.
"Fundamentally, we wanted to examine how online platforms can normalize hatred and contribute to dehumanization," says Jessica Jameson, co-author of a paper on the work and a professor of communication at North Carolina State University. "And we found that an established model of the role identity plays in intractable conflicts seems to explain a great deal of this behavior."
Researchers examine the effectiveness of consuming hemp oil extracted from the whole Cannabis plant using a chronic neuropathic pain animal model. Researchers at The University of New Mexico (UNM) showed that legal Cannabis hemp oil reduced mechanical pain sensitivity 10-fold for several hours in mice with chronic post-operative neuropathic pain.
NASA-NOAA's Suomi NPP satellite passed over the western North Atlantic Ocean and provided forecasters with a visible image of Post Tropical Storm Arthur.
During the afternoon (Eastern Daylight Time/U.S.) of May 19, the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard Suomi NPP provided a visible image of Arthur and showed a weak circulation with the bulk of clouds northeast and east of the center. Arthur is located out in the Western Atlantic Ocean far from the U.S. coast and parallel to the Virginia/North Carolina border.
NASA satellites have been providing forecasters with various types of imagery on Typhoon Amphan as it heads toward a landfall near the border of eastern India and Bangladesh on May 20.
NASA-NOAA's Suomi NPP satellite provided visible imagery of Amphan and NASA's Aqua satellite provided an infrared view of the storm's cloud top temperatures. Amphan was moving north through the Bay of Bengal and forecast to make landfall in northeastern India near Kolkata, which is just west of the border with Bangladesh.
From testing drugs to developing vaccines, the close study of the immune system is key to improving real-world health outcomes. T-cells are integral to this research, as these white blood cells help tailor the body's immune response to specific pathogens.
With lattice light-sheet microscopy (LLSM), scientists have been able to closely examine individual cells, such as T-cells, in 4D. But with limited data points, there wasn't an effective way to analyze the LLSM data.
Conventional wisdom suggests that when a company generates more carbon emissions, investors should lower its stock price. After all, the company is generating a socially undesirable byproduct.
DALLAS – May 20, 2020 – A new UT Southwestern study shows how an effective but largely abandoned treatment for Type 2 diabetes could be used again in combination with another drug to eliminate problematic side effects.
Buckling, the sudden loss of structural stability, is usually the stuff of engineering nightmares. Mechanical buckling means catastrophic failure for every structural system from rockets to soufflés. It's what caused the Deepwater Horizon oil spill in 2010, among numerous other disasters.