Tech
Leesburg, VA, November 20, 2020--According to an article in ARRS' American Journal of Roentgenology (AJR), although pediatric CT use has decreased for the evaluation of abdominal pain (perhaps due to implementing an ultrasound-first strategy for suspected appendicitis), CT use has continued to increase among adults with abdominal pain in U.S. emergency department (ED) visits.
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A research team at Tokyo Medical and Dental University (TMDU) find that Wipi3, a protein involved in cellular waste disposal, is crucial for neuronal health
Tokyo, Japan - A little mess never killed anyone, right? Wrong. Researchers at Tokyo Medical and Dental University (TMDU) have recently shown that a build-up of cellular "trash" in the brain can actually cause neurodegeneration, and even death.
A new paper from the University of Melbourne reveals how animals use beautiful but unreliable iridescent colours as communication signals. Special adaptations enable animals to control how these shifting colours appear so that they can convey reliable information.
The new work now published in Trends in Evolution and Ecology draws together studies from across the animal kingdom to discover how animals control the appearance of iridescent colors in nature.
Osaka, Japan - A team of researchers at Osaka University has developed a nanopowder shaped like seaweed for a water filter to help remove toxic metal ions (Fig. 1). Made of layered sodium titanate, the randomly oriented nanofibers increase the efficacy of cobalt-II (Co2+) ion capture. This work might lead to cheaper and more effective solutions for filtering water that is currently unusable due to hazardous heavy metals or radioactive fallout.
The term leukaemia is used to describe a group of malignant diseases of the haematopoietic system, in which precursors of the white blood cells (leucocytes) proliferate uncontrollably. Chemotherapy and radiotherapy are used to destroy the abnormal blood cells, which are then replaced by means of a stem cell transplant. In leukaemia, the transplantation of healthy bone marrow stem cells or haematopoietic stem cells is often the only hope of recovery for patients.
Although it might seem like it, Norway's oil history did not begin with the first major discovery at the Ekofisk field in 1969 by Phillips Petroleum Co. It didn't even begin with the Balder discovery a couple of years earlier, or Norway's claim to large areas in the North Sea in 1963.
A better place to look for a kind of beginning is the end of the 19th century. The story involves one of the richest men of all time, John D. Rockefeller, and his giant company Standard Oil.
It's also the story of how governments in small countries struggle to fight economic giants.
A team of palaeontologists described two amber pieces found in sites in Teruel (Spain) with remains from vertebrates corresponding to the Early Cretaceous. Both pieces have their origins in the same conservation process of resins, described for the first time by the researchers. One of these remains corresponds to the finding of the oldest mammalian hair in amber worldwide, and the remains found in the other piece correspond to dinosaur feathers.
ABERDEEN PROVING GROUND, Md. -- Scientists from the U.S. Army and MIT's Center for Bits and Atoms created a new way to link materials with unique mechanical properties, opening up the possibility of future military robots made of robots.
Researchers from MIPT and the RAS Institute of Problems of Chemical Physics have proposed a simple and convenient way to obtain arbitrarily sized quantum dots required for physical experiments via chemical aging. The study was published in Materials Today Chemistry.
Colloidal quantum dots are nanosized crystals whose size determines the frequency at which they emit and absorb electromagnetic radiation. They are used in solar cells, TV sets, fire alarm systems, and more.
Using x-ray lasers, researchers at Stockholm University have been able to follow the transformation between two distinct different liquid states of water, both being made of H2O molecules. At around -63 Centigrade the two liquids exist at different pressure regimes with a density difference of 20%. By rapidly varying the pressure before the sample could freeze, it was possible to observe one liquid changing into the other in real time. Their findings are published in the journal Science.
Hydrogen can be produced with renewable energies in a climate neutral way and could make a major contribution to the energy system of the future. One of the options is to use sunlight for electrolytic water splitting, either indirectly by coupling a solar cell with an electrolyser or directly in a photoelectrochemical (PEC) cell. Light-absorbing semiconductors serve as photoelectrodes. They are immersed in an electrolyte solution of water mixed with strong acids or bases, which contains high concentration of protons or hydroxide ions necessary for efficient electrolysis.
Staphylococcus aureus (which includes MRSA) is the most prevalent organism isolated from the airways of children with cystic fibrosis (CF), and is treated using antibiotics, but its role in lung disease is poorly understood
Using pig lungs from a butcher and synthetic mucus, researchers from the University of Warwick have shown that S. aureus preferentially colonises mucus, rather than the lung tissue
CAMBRIDGE, MA -- When someone struggles to open a lock with a key that doesn't quite seem to work, sometimes jiggling the key a bit will help. Now, new research from MIT suggests that coronaviruses, including the one that causes Covid-19, may use a similar method to trick cells into letting the viruses inside. The findings could be useful for determining how dangerous different strains or mutations of coronaviruses may be, and might point to a new approach for developing treatments.
SALT LAKE CITY - Utah scientists have discovered new functions of a key cellular machine that regulates gene packaging and is mutated in 20% of human cancers. The study was published in print today in the journal Molecular Cell.