OAK RIDGE, Tenn., Aug.10, 2018 -- The first full characterization measurement of an accelerator beam in six dimensions will advance the understanding and performance of current and planned accelerators around the world.
A team of researchers led by the University of Tennessee, Knoxville conducted the measurement in a beam test facility at the Department of Energy's Oak Ridge National Laboratory using a replica of the Spallation Neutron Source's linear accelerator, or linac. The details are published in the journal Physical Review Letters.
NASA's Aqua satellite found strong storms circling the center of Tropical Storm Kristy.
On Aug. 10. Infrared data from NASA's Aqua satellite provided forecasters with temperature data that showed strong storms.
A quality-improvement project to standardize feeding practices for micro preemies--preterm infants born months before their due date-- helped to boost their weight and nearly quadrupled the frequency of lactation consultations ordered in the neonatal intensive care unit (NICU), a multidisciplinary team from Children's National Health System finds.
Historic levels of particles in the atmosphere released from pre-industrial era fires, and their cooling effect on the planet, may have been significantly underestimated according to a new study.
Fires cause large amounts of tiny particles, known as aerosols, to be released into the atmosphere. These aerosols, such as the soot in smoke or chemicals released by burning trees, can cool the planet by reflecting sunlight back into space and increasing cloud brightness.
Why does the egg size of house sparrows vary so much? Isn't it always an advantage to be big?
Perhaps not surprisingly, baby sparrows that hatch from large eggs are consistently bigger their small egg counterparts. They can store up more reserves if food becomes scarce. So you would think that it's always a good idea to lay big eggs because your offspring would seem to have a greater chance of survival.
But what really set research biologists to wondering is that the difference in volume from the smallest to the largest egg can vary by 50 per cent.
New research reveals that mothers hold similar views and attitudes when parenting their first and second children, but their parenting behaviors with their two children differ.
In the study, published in Social Development, 55 mothers were observed interacting with their first child at the age of 20 months and again, using the same procedures, when their second child was 20 months.
Army researchers have designed a computer model that more effectively calculates the behavior of atmospheric turbulence in complex environments, including cities, forests, deserts and mountainous regions.
This new technology could allow Soldiers to predict weather patterns sooner using the computers at hand and more effectively assess flight conditions for aerial vehicles on the battlefield.
Turbulence may be invisible to the naked eye, it is always present around us in the air in the form of chaotic changes in velocity and pressure.
The Icelandic Sagas tell of Erik the Red: exiled for murder in the late 10th century he fled to southwest Greenland, establishing its first Norse settlement.
The colony took root, and by the mid-12th century there were two major settlements with a population of thousands. Greenland even gained its own bishop.
By the end of the 15th century, however, the Norse of Greenland had vanished - leaving only abandoned ruins and an enduring mystery.
Scientists have identified a key gene that helps seeds decide whether to germinate.
The MFT gene stops seeds germinating in the dark or under shady conditions, where their chances of survival would be poor, according to new research from the University of York.
The study, conducted on Arabidopsis, a very close relative of oilseed rape, increases our understanding of one of the most important stages in the life cycle of a plant and may help to improve the seed quality of agricultural crops in the future.
An examination of research on oral health, commissioned by the World Health Organisation, has indicated that for oral health we should stick to whole grain carbohydrates and avoid processed ones, especially if sweet.
Food contains different types of starchy carbohydrate with varying degrees of processing. Although the researchers found no association between the total amount of starch eaten and tooth decay, they did find that more processed forms of starch increased risk of cavities. This is because they can be broken down into sugars in the mouth, by amylase found in saliva.
The plastic bag ban by the major supermarkets (and Coles’ pivot away from its ban after backlash, then pivot back to the ban after a backlash to the backlash) has left plenty of people scratching their heads.
The chemical composition of gases emitted from volcanoes - which are used to monitor changes in volcanic activity - can change depending on the size of gas bubbles rising to the surface, and relate to the way in which they erupt. The results, published in the journal Nature Geoscience, could be used to improve the forecasting of threats posed by certain volcanoes.
A team of scientists, including a volcanologist and mathematician from the University of Cambridge, discovered the phenomenon through detailed observations of gas emissions from K?lauea volcano in Hawaii.
KANSAS CITY, MO -- Researchers from the Stowers Institute for Medical Research and collaborators have identified a way to expand blood-forming, adult stem cells from human umbilical cord blood (hUCB). This development could make these cells available to more people, and be more readily accepted in those who undergo adult stem cell treatments for conditions such as leukemia, blood disorders, immune system diseases, and other types of cancers, but who do not have an appropriate available bone marrow match.
Cocaine relapse was significantly reduced in a preclinical model when brain-derived neurotropic factor (BDNF) was applied to the nucleus accumbens deep in the brain immediately before cocaine-seeking behavior, report investigators at the Medical University of South Carolina (MUSC) in an article published online in June 2018 by Addiction Biology. "We discovered that a very common protein in the brain has an additional significant role in addiction relapse," says lead author Ana-Clara Bobadilla, Ph.D., a postdoctoral scholar in the laboratory of Peter Kalivas, Ph.D., at MUSC.
RIVERSIDE, Calif. -- Many barriers prevent people from getting tested for HIV, including lack of knowledge, competing priorities during medical visits, and stigma associated with the test on the part of both the patient and provider.
Not much is known, however, about what impact age and ethnicity have on HIV testing.