Tech
Herd immunity to Covid-19 could be achieved with less people being infected than previously estimated according to new research.
Our computers are becoming more and more powerful all the time. They also often become smaller - just think of what a standard smartphone can do today compared to just a few years ago.
But the development cannot last.
- With our current technology, we will soon reach the limit of how small the components within a computer can be, says Steffen Bähring from Department of Physics, Chemistry and Pharmacy, University of Southern Denmark. He studies molecules and for this study he investigated how good they are at conducting electricity.
Researchers from Russia and the Czech Republic performed numerical modelling of natural rock arcades using a mathematical model that describes a succession of arches forming as a result of weathering and then turning into rock pillars without human involvement, despite their striking resemblance to architectural arcades. The results of the study were published in the journal Geomorphology.
Conservation management around the margins of agriculture fail to protect butterfly species at greatest risk from the intensification of farming, a new study says.
The research, from the University of York, says the subsidised schemes are likely to help common, more mobile grassland species like the Ringlet (Aphantopus hyperantus) or the Meadow brown (Maniola jurtina) but not rarer species like the Duke of Burgundy (Hamearis lucina) or the Dingy skipper (Erynnis tages).
Firefighters face occupational hazards on a daily basis. Now, new research shows they face additional risk just by gearing up.
Fabric used for firefighter turnout gear tested positive for the presence of per- and polyfluorinated alkyl substances (PFAS), according to the study published in Environmental Science and Technology Letters, led by Graham Peaslee, professor of physics at the University of Notre Dame. Peaslee embarked on a more extensive study, after initial tests on gear samples showed significantly high levels of fluorine.
What happens when a molecule collides with a surface? Researchers at Swansea University have shown that the orientation of the molecule as it moves - whether it is spinning like a helicopter blade or rolling like a cartwheel - is important in determining what happens in the collision.
The interaction of molecules with surfaces lies at the heart of many research fields and applications: plant fertilizers and chemicals, industrial catalysts, atmospheric chemical reactions on ice and dust particles, and even - in space - the processes through which a star is born.
About three-quarters of U.S. workers, or 108 million people, are in jobs that cannot be done from home during a pandemic, putting these workers at increased risk of exposure to disease. This majority of workers are also at higher risk for other job disruptions such as layoffs, furloughs or hours reductions, a University of Washington study shows.
In recent years, there has been a rise in foreign and domestic large-scale land acquisitions--defined as being at least roughly one square mile--in Latin America, Asia, and Africa where investing countries and multinational investors take out long-term contracts to use the land for various enterprises.
Motorists can save as much as $14,500 on fuel costs over 15 years by driving an electric vehicle instead of a similar one fueled by gasoline, according to a new analysis conducted by researchers at the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) and Idaho National Laboratory (INL).
NASA's Aqua satellite used infrared light to analyze the strength of storms in the North Atlantic Ocean's newly formed Subtropical Depression 4. Infrared data provides temperature information to find the strongest thunderstorms that reach high into the atmosphere which have the coldest cloud top temperatures.
NOAA/NASA's Suomi NPP satellite captured this image of the Bighorn Fire on June 22, 2020, showing clouds of smoke pouring off this fire that is plaguing Arizona. On June 24, the fire has grown to 65,536 acres and is 33 percent contained. On June 05, 2020, a lightning strike started the Bighorn Fire in the Catalina Mountains northwest of Tucson, Arizona on the Coronado National Forest. Due to current dry, windy weather conditions the fire has pushed closer to communities forcing evacuation.
A University of Texas at Dallas study of 100 mobile apps for kids found that 72 violated a federal law aimed at protecting children's online privacy.
Dr. Kanad Basu, assistant professor of electrical and computer engineering in the Erik Jonsson School of Engineering and Computer Science and lead author of the study, along with colleagues elsewhere, developed a tool that can determine whether an Android game or other mobile app complies with the federal Children's Online Privacy Protection Act (COPPA).
Scientists at St. Jude Children's Research Hospital have created orthotopic patient-derived xenograft (O-PDX) models representing a variety of pediatric brain tumor types. The models are molecularly characterized and available through a cloud-based data portal. Acta Neuropathologica recently published a report detailing these models.
Rotavirus is responsible for more than 130,000 deaths in infants and young children younger than five years, every year. The virus causes severe, dehydrating diarrhea as it replicates in viral factories called viroplasms that form inside infected cells. Viroplasms have been difficult to study because they normally form very quickly, but a serendipitous observation led researchers at Baylor College of Medicine to uncover new insights into the formation of viroplasms.
BELLINGHAM, Washington, USA - An article published in the Journal of Biomedical Optics (JBO), "Point-of-care, multispectral, smartphone-based dermascopes for dermal lesion screening and erythema monitoring," shows that s