Deforestation may have far greater consequences for climate change in some soils than in others, according to new research led by Yale University scientists — a finding that could provide critical insights into which ecosystems must be managed with extra care because they are vulnerable to biodiversity loss and which ecosystems are more resilient to widespread tree removal.
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PULLMAN, Wash. – Researchers in Washington State University's School of Electrical Engineering and Computer Science have developed a method to allow a computer to give advice and teach skills to another computer in a way that mimics how a real teacher and student might interact.
Matthew E. Taylor, WSU's Allred Distinguished Professor in Artificial Intelligence, reports on his method in the journal Connection Science. The work was funded in part by the National Science Foundation (NSF).
Researchers in China, [J. Appl. Cryst. (2014). 47, 527-531] have found a convenient way to selectively prepare germanium sulfide nanostructures, including nanosheets and nanowires, that are more active than their bulk counterparts and could open the way to lower cost and safer optoelectronics, solar energy conversion and faster computer circuitry.
Bottom Line: Parental monitoring of the time children spend watching television, playing video games and being online can be associated with more sleep, improved school performance and better behavior by the children.
Author: Douglas A. Gentile, Ph.D., of Iowa State University, Ames, and colleagues.
Background: Previous research suggests high levels of screen time are associated with less sleep, attention problems and lower academic progress.
A Yale University-led study has found that using more wood and less steel and concrete in building and bridge construction would substantially reduce global carbon dioxide emissions and fossil fuel consumption.
Despite an established forest conservation theory holding that tree harvesting should be strictly minimized to prevent the loss of biodiversity and to maintain carbon storage capacity, the new study shows that sustainable management of wood resources can achieve both goals while also reducing fossil fuel burning.
Consuming foods grown in urban gardens may offer a variety of health benefits, but a lack of knowledge about the soil used for planting, could pose a health threat for both consumers and gardeners. In a new study from the Johns Hopkins Center for a Livable Future (CLF), researchers identified a range of factors and challenges related to the perceived risk of soil contamination among urban community gardeners and found a need for clear and concise information on how best to prevent and manage soil contamination. The results are featured online in PLOS ONE .
Researchers at the USC Viterbi School of Engineering have improved the performance and capacity of lithium batteries by developing better-performing, cheaper materials for use in anodes and cathodes (negative and positive electrodes, respectively).
What makes cities in India and China so frustrating to drive in—heavy traffic, aggressive driving style, few freeways—makes them ideal for saving fuel with hybrid vehicles, according to new research by scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab). In a pair of studies using real-world driving conditions, they found that hybrid cars are significantly more fuel-efficient in India and China than they are in the United States.
Objects with sizes in the nanometer range, such as the molecular building blocks of living cells or nano-technological devices, are continuously exposed to random collisions with surrounding molecules.
In such fluctuating environments the fundamental laws of thermodynamics that govern our macroscopic world need to be rewritten. An international team of researchers from Barcelona, Zurich and Vienna found that a nanoparticle trapped with laser light temporarily violates the famous second law of thermodynamics, something that is impossible on human time and length scale.
In the first study of its kind, research undertaken at the University of Southampton has cast significant doubt over the use of biochar to alleviate climate change.
Biochar is produced when wood is combusted at high temperatures to make bio-oil and has been proposed as a method of geoengineering. When buried in the soil, this carbon rich substance could potentially lock-up carbon and reduced greenhouse gas emissions. The global potential of biochar is considered to be large, with up to 12 percent of emissions reduced by biochar soil application.
MINNEAPOLIS, MN – March 29, 2014 – Minneapolis Heart Institute Chief Cardiology Fellow Ankur Kalra, MD has been named as a finalist for the 2014 ACCF Young Investigators Awards. Kalra's research, funded by the Minneapolis Heart Institute Foundation (MHIF), supports the ongoing quest to better identify, with noninvasive tools, which heart attack survivors are at greatest risk for sudden cardiac death, and therefore may benefit from ICD (implantable cardioverter defibrillator) therapy.
MINNEAPOLIS, MN – March 31, 2014 – Minneapolis Heart Institute Chief Cardiology Fellow Ankur Kalra, MD has been named as a finalist for the 2014 ACCF Young Investigators Awards. Kalra's research, funded by the Minneapolis Heart Institute Foundation (MHIF), supports the ongoing quest to better identify, with noninvasive tools, which heart attack survivors are at greatest risk for sudden cardiac death, and therefore may benefit from ICD (implantable cardioverter defibrillator) therapy.
The human mind tends to devalue future rewards compared to immediate ones – a phenomenon that often leads to favoring immediate gratification over long-term wellbeing. As a consequence, patience has long been recognized to be a virtue. And indeed, the inability to resist temptation underlies a host of problems ranging from credit card debt and inadequate savings to unhealthy eating and drug addiction.
A mixture of diamond nanoparticles and mineral oil easily outperforms other types of fluid created for heat-transfer applications, according to new research by Rice University.
Rice scientists mixed very low concentrations of diamond particles (about 6 nanometers in diameter) with mineral oil to test the nanofluid's thermal conductivity and how temperature would affect its viscosity. They found it to be much better than nanofluids that contain higher amounts of oxide, nitride or carbide ceramics, metals, semiconductors, carbon nanotubes and other composite materials.
AURORA, Colo. (March 31, 2014) Diabetic ketoacidosis (DKA), a life-threatening but preventable condition, remains an important problem for youth with diabetes and their families. Diabetic ketoacidosis is due to a severe lack of insulin and it is often the presenting symptom of type 1 diabetes. It can also be present at the onset of type 2 diabetes.