Tech
A supercell thunderstorm pelted a city center in Argentina a few years ago with hailstones so large scientists suggested a new category to describe them -- gargantuan hail.
Researchers investigating the 2018 storm found one hailstone likely measured between 7.4 and 9.3 inches across, potentially setting a new world record. The current record belongs to a hailstone that measured 8 inches across, or about the size of a volleyball, that fell near Vivian, South Dakota.
The ancient cemetery of Mözs-Icsei d?l? in present-day Hungary holds clues to a unique community formation during the beginnings of Europe's Migration Period, according to a study published April 29, 2020 in the open-access journal PLOS ONE by Corina Knipper from the Curt-Engelhorn-Center for Archaeometry, Germany, István Koncz, Tivadar Vida from the Eötvös Loránd University, Budapest, Hungary and colleagues.
A strange reversal of ground motion preceded two of the largest earthquakes in history. This is the result of a new study led by Jonathan Bedford of GFZ German Research Centre for Geosciences. Together with a diverse team of geoscientists from GFZ, FU Berlin, Chile, and USA, he investigated signals recorded in Chile and Japan capturing the movement of GNSS stations before the great Maule quake in 2010 (magnitude 8.8) and the Tohoku-oki earthquake in 2011 (magnitude 9.0) which led to a devastating tsunami and the Fukushima nuclear meltdown.
Macrophages are immune cells that patrol the body looking for potential threats like viruses, bacteria, and cancer cells, and engulf and destroy them. However, cancerous tumors have a nasty trick up their sleeves: they secrete substances that "switch" arriving macrophages from their tumor-killing state to a tumor-promoting state, in which they suppress the body's immune response, drive the growth of blood vessels to supply the tumor, and help the tumor metastasize.
What The Study Did: In this observational study, researchers examine internet searches indicative of shopping for chloroquine and hydroxychloroquine, including after high-profile endorsements.
Authors: John W. Ayers, Ph.D., M.A., of the University of California, San Diego, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamainternmed.2020.1764)
COLUMBUS, Ohio - The land masses of Japan shifted from east to west to east again in the months before the strongest earthquake in the country's recorded history, a 2011 magnitude-9 earthquake that killed more than 15,500 people, new research shows.
Algae in the oceans often steal genes from bacteria to gain beneficial attributes, such as the ability to tolerate stressful environments or break down carbohydrates for food, according to a Rutgers co-authored study.
Anemia is a global health problem common in low-income countries. Severe cases can lead to fatigue, heart problems, and complications in pregnancy. When widespread, anemia can also weigh on national economies.
Anemia's leading cause is iron deficiency. Unfortunately, iron supplements or diet diversification is not always an option for addressing anemia for the rural poor. Enhancing the iron content of farm-grown staples like beans may be a sustainable, inexpensive, and effective alternative, research shows.
Scientists have long opposed the idea that dinosaurs lived in aquatic habitats. Now, an international team of researchers, supported by the National Geographic Society, has discovered unambiguous evidence that Spinosaurus aegyptiacus, the longest predatory dinosaur known to science, was aquatic and used tail-propelled swimming locomotion to hunt for prey in a massive river system. It is the first time that such an adaptation has been reported in a dinosaur.
A new survey of U.S. primary care physicians from researchers at Johns Hopkins Bloomberg School of Public Health found that nearly one-third, 32.9 percent, do not think treating opioid use disorder with medication is any more effective than treatment without medication.
The study also found that only one-fifth, 20.2 percent, of U.S. primary care physicians have interest in treating a patient with opioid use disorder.
COLUMBIA, Mo. - Nursing home residents are often cared for by a variety of health care professionals, including licensed nursing staff. Transfers to a hospital can result from multiple factors, such as recurrent falls or medication mismanagement.
Now, researchers at the University of Missouri have found that providing advanced practice registered nurses with a multidisciplinary support team can help drastically reduce avoidable hospitalizations for nursing home residents.
Steady hands and uninterrupted, sharp vision are critical when performing surgery on delicate structures like the brain or hair-thin blood vessels. While surgical cameras have improved what surgeons see during operative procedures, the "steady hand" remains to be enhanced -- new surgical technologies, including sophisticated surgeon-guided robotic hands, cannot prevent accidental injuries when operating close to fragile tissue.
Chronic iron imbalances - having either too little or too much iron in the blood - can result in medical conditions ranging from anaemia and haemochromatosis through to more severe diseases, such as cancer, Parkinson's Disease and Alzheimer's Disease.
Haemochromatosis is one of Australia's most common hereditary diseases and the Australian Bureau of Statistics estimates approximately 780,000 people live with anaemia.
Polyurethanes (PUs) are used in many products, such as mattresses, insulation, footwear and construction materials. Wear and replacement of these products generates lots of waste and creates demand for new PUs, often made from toxic building blocks. A few methods have attempted to recycle PU waste, but these techniques result in lower-value products. Now, researchers report in ACS Central Science a way to recycle used PU into equivalent or even higher-value items.
EVANSTON, Ill. -- Researchers have developed a new method for upcycling polyurethane foams, the spongy material found in mattresses, insulation, furniture cushions and shoes.