Tech
Scientists from the National University of Science and Technology MISIS together with colleagues from Germany and Sweden achieved a result that seemed impossible. The researchers managed to create at ultra-high pressures a new material that preserves the structure and properties even under normal atmospheric pressure. Moreover, it turned out that it can be recreated in more "trivial" laboratory conditions via complex chemical reactions. The results of the experiment alongside with their theoretical explanation are presented in Nature Communications.
Nowadays the words "uncertainty" and "multicriteria" characterize in a best way the relevance and complexity of modern problems of management of a variety of dynamic objects and processes.
Top fashion companies that are pledging to end worker exploitation in their global supply chains are hampering progress through their own irresponsible sourcing practices, concludes a new report published today on working conditions in the Southern Indian garment industry powerhouse.
Short production windows, cost pressures and constant fluctuations in orders by brands and retail chains like Nike, H&M, Adidas, Primark and Walmart make it very difficult for local suppliers to comply with the standards on decent working practice that the companies say they expect.
WASHINGTON, D.C., September 3, 2019 -- An explosion is a complex event involving quickly changing temperatures, pressures and chemical concentrations. In a paper in the Journal of Applied Physics, from AIP Publishing, a special type of infrared laser, known as a swept-wavelength external cavity quantum cascade laser (swept-ECQCL), is used to study explosions. This versatile instrument has a broad wavelength tuning range that allows the measurement of multiple chemical substances, even large molecules, in an explosive fireball.
Remora fishes are famed hitchhikers of the marine world, possessing high-powered suction disks on the back of their head for attaching themselves in torpedo-like fashion to larger hosts that can provide food and safety -- from whales and sharks to boats and divers.
Selective browsing by white-tailed deer has been blamed by many for changing the character and composition of forest understories in the eastern U.S.; however, its impact on the forest canopy was previously unknown.
Now, a new study led by a Penn State researcher suggests that while deer browsing has impacted tree regeneration in the understory, it has not had much of an impact on forest canopies -- and in fact likely has slowed the forest densification process slightly.
Tropical Storm 14W formed as a depression a couple of days ago in the Northwestern Pacific Ocean and strengthened into a tropical storm on Sept. 2. Infrared data from NASA's Aqua satellite shows some powerful thunderstorms fueling further intensification.
The storm that became Typhoon Lingling strengthened very quickly in the Northwestern Pacific Ocean and infrared imagery from NASA revealed the powerful thunderstorms fueling that intensification.
Lingling formed on Sept. 2 as Tropical Depression 15W and strengthened quickly into a tropical storm and then a typhoon. Although Lingling is to the northeast of Luzon, northern Philippines, there are still some warning signals in effect on Sept. 3. Tropical cyclone wind signal #1 is in effect over the Luzon province of Batanes.
The Global Precipitation Measurement mission or GPM core satellite provided a look at rainfall rates in Tropical Depression Kajiki after it made a quick landfall in Vietnam.
On Sept. 2, Kajiki formed as Tropical Depression 16W in the South China Sea close to the Vietnam coast. It briefly strengthened to a tropical storm and was renamed Kajiki before weakening back to depression status.
Social network interventions can have a significant effect on a range of health behaviors and outcomes both in the short and long term, according to a new study published this week in PLOS Medicine by Ruth Hunter of Queen's University Belfast, UK, and colleagues.
Electric solid propellants are being explored for use in dual-mode rocket engines because they aren't susceptible to ignite from a spark or flame and can be turned on and off electrically.
Researchers from the University of Illinois at Urbana-Champaign, Missouri University of Science and Technology, and NASA conducted experiments to understand the behavior of a high-performance electric propellant compared with a traditional propellant.
With warming temperatures, average snowfall frequency is estimated to decline across the Pacific Northwest by 2100 -- and at a faster rate if greenhouse emissions are not reduced, according to a new Portland State University study.
Another Atlantic Ocean basin depression formed while Hurricane Dorian is still wreaking havoc on the Bahamas and affecting the southeastern U.S. Infrared imagery from NASA's Aqua satellite shows that Tropical Depression 7 in the western Gulf of Mexico has developed powerful thunderstorms with heavy rain capabilities. That potential for heavy rainfall includes southern Texas and northeastern Mexico.
NASA conducts research on tropical cyclones and provides various data to forecasters at NOAA's National Hurricane Center (NHC) to consider in their forecasts.
In the early hours of Tuesday, September 3, Hurricane Dorian had been stationary over the island of Grand Bahama for 18 hours, most of the time as a category 5 hurricane. Storm-total rain accumulation over parts of Grand Bahama and Abaco Islands have exceeded 24 inches according to NASA satellite-based estimates.
Bottom Line: The U.S. Preventive Services Task Force (USPSTF) added aromatase inhibitors to its recommendation that clinicians offer medications to reduce the risk of breast cancer (tamoxifen, raloxifene or aromatase inhibitors) to asymptomatic women 35 and older, including those with previous benign breast lesions, who are at increased risk of developing the disease but at low risk for adverse effects from the medications. The USPSTF recommends against routine use of these medications in women not at increased risk for breast cancer.