Tech
Observations by NASA's Hubble Space Telescope are showing that the unexpected dimming of the supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked starlight coming from Betelgeuse's surface.
Natural mixing of lake waters may resuspend contaminants deposited in a catastrophic mine spill six years ago, according to a new paper led by a University of Alberta scientist.
The results show that the turbidity, or cloudiness, in portions of British Columbia's Quesnel Lake increases each spring and fall when the lake mixes from top to bottom in a natural process called turnover. The source of the turbidity appears to be the resuspension of spill-related material from the bottom of the lake, raising concerns about contaminants being reintroduced to the water column.
What do lynx, flying squirrels, ravens, and wolverines have in common?
They will all scavenge from snowshoe hare carcasses under the right conditions, according to a new study by University of Alberta ecologists. And they're not alone. In fact, researchers documented 24 different species feeding from snowshoe hare carcasses in Canada's northern boreal forest.
Antibiotic resistance is an increasing health problem, but new research suggests it is not only caused by the overuse of antibiotics. It's also caused by pollution.
Using a process known as genomic analysis, University of Georgia scientists found a strong correlation between antibiotic resistance and heavy metal contamination in an environment.
A major Houston health care system saw a significant increase in younger and Hispanic COVID-19 patients from the first surge to the second surge after Texas phased in reopening. Houston Methodist is the first to share such demographics in a peer-reviewed journal, publishing this analysis in a Journal of the American Medical Association (JAMA) Letter (online Aug. 13). The study shows that Houston Methodist reported a marked increase in Hispanic and younger COVID-19 patients between the first and second surges.
Researchers with the Snyder Institute for Chronic Diseases at the Cumming School of Medicine (CSM) have discovered which gut bacteria help our immune system battle cancerous tumours and how they do it. The discovery may provide a new understanding of why immunotherapy, a treatment for cancer that helps amplify the body's immune response, works in some cases, but not others.
A Canadian-Finnish collaboration has led to the discovery of a novel magnetic compound in which two magnetic dysprosium metal ions are bridged by two aromatic organic radicals forming a pancake bond. The results of this study can be utilized to improve the magnetic properties of similar compounds. The theoretical investigation of the study was carried out by the Academy Research Fellow Jani O. Moilanen at the University of Jyväskylä, whereas the experimental work was performed at the University of Ottawa in the groups of Profs. Muralee Murugesu and Jaclyn L. Brusso.
The tenth named tropical cyclone of the Atlantic Ocean hurricane season was named today, Aug. 13, after NASA-NOAA's Suomi NPP satellite provided a nighttime image of the storm.
Tropical Storm Josephine developed from Tropical Depression 11. Over the last two days, Tropical Depression 11 has been moving through the Central Atlantic Ocean and was slow to organize. Satellite imagery indicated the depression became more organized and reached tropical storm strength on Aug. 13.
Another Record-Breaker for the Season
Lisle, Ill. (August 13) -- Central America is one of the most diverse floristic regions in the world, but a lack of comprehensive plant records and knowledge of its endangered, endemic tree species impedes conservation work.
JUPITER, FL--Chemists at Scripps Research have efficiently created three families of complex, oxygen-containing molecules that are normally obtainable only from plants.
These molecules, called terpenes, are potential starting points for new drugs and other high-value products--marking an important development for multiple industries. In addition, the new approach could allow chemists to build many other classes of compounds.
The chemistry feat is detailed in the Aug. 13 edition of the journal Science.
To judge the overall effectiveness of cover crops and choose those offering the most ecosystem services, agricultural scientists must consider the plants' roots as well as above-ground biomass, according to Penn State researchers who tested the characteristics of cover crop roots in three monocultures and one mixture.
Below please find a summary and link(s) of new coronavirus-related content published today in Annals of Internal Medicine. The summary below is not intended to substitute for the full article as a source of information. A collection of coronavirus-related content is free to the public at http://go.annals.org/coronavirus.
Leesburg, VA, August 13, 2020--According to ARRS' American Journal of Roentgenology (AJR), clinicians do not read a considerable proportion of second-opinion radiology reports--"a situation that can be regarded as an appreciable but potentially reversible waste of health care resources," the authors of this AJR "Health Care Policy and Quality" article concluded.
New observations by the NASA/ESA Hubble Space Telescope suggest that the unexpected dimming of the supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked starlight coming from Betelgeuse's surface.
A research team in Korea has developed a material that may potentially replace color shifting ink in prevention of forgery of bank notes, ID cards, and so on. A team headed by Dr.