Tech
What The Study Did: This research letter looked at two categories of firearm laws to prevent child access and their association with pediatric firearm fatalities throughout the United States from 1991 to 2016.
Author: Eric W. Fleegler, M.D., M.P.H., of Boston Children's Hospital, 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/jamapediatrics.2019.6227)
Subduction zones -- places where one tectonic plate dives beneath another -- are where the world's largest and most damaging earthquakes occur. A new study has found that when underwater mountains -- also known as seamounts -- are pulled into subduction zones, not only do they set the stage for these powerful quakes, but also create conditions that end up dampening them.
A practical method for mapping the flow of a current in devices with complex geometries that could be used to optimize circuit design has been developed at KAUST.
A traditional high-school physics experiment is to place iron filings on a piece of paper above a permanent magnet. The small metal particles will arrange themselves into a series of lines connecting the two ends, or poles, of the magnet. This enables students to visualize the otherwise invisible field lines that mediate magnetic attraction and repulsion.
Researchers in the US have developed a new multi-organ-on-a-chip to test how new drugs affect the human body's vital organs.
Developing new drugs can come at enormous financial cost, which can be wasted if the drug must be withdrawn due to unforeseen side effects.
The research team believes their new system - containing representations of liver, heart, vasculature, lungs, testis, and either colon or brain tissues - could help avoid such cases.
In 1966, Japanese physicist Yosuke Nagaoka predicted the existence of a rather striking phenomenon: Nagaoka's ferromagnetism. His rigorous theory explains how materials can become magnetic, with one caveat: the specific conditions he described do not arise naturally in any material. Researchers from QuTech, a collaboration between TU Delft and TNO, have now observed experimental signatures of Nagaoka ferromagnetism using an engineered quantum system. The results were published today in Nature.
One of the world's most widely used glyphosate-based herbicides, Roundup, can trigger loss of biodiversity, making ecosystems more vulnerable to pollution and climate change, say researchers from McGill University.
New York University biologists captured highly transient interactions between transcription factors--proteins that control gene expression--and target genes in the genome and showed that these typically missed interactions have important practical implications. In a new study published in Nature Communications, the researchers developed a method to capture transient interactions of NLP7, a master transcription factor involved in nitrogen use in plants, revealing that the majority of a plant's response to nitrogen is controlled by these short-lived regulatory interactions.
When a grassland becomes a desert, or a clearwater lake shifts to turbid, the consequences can be devastating for the species that inhabit them. These abrupt environmental changes, known as regime shifts, are the subject of new research in Nature Ecology & Evolution which shows how small environmental changes trigger slow evolutionary processes that eventually precipitate collapse.
Since the 2016 U.S. presidential election, debates have raged about the reach of so-called "fake news" websites and the role they played during the campaign. A study published in Nature Human Behaviour finds that the reach of these untrustworthy websites has been overstated.
SMU Office of Research & Tech Transfer - Have you ever followed a recipe to bake some bread? If you have, congratulations; you have executed an algorithm. The algorithms that follow us around the internet to suggest items we might like, and those that control what shows up in our Facebook feeds may seem mysterious and uncanny at times. Yet, an algorithm is simply a set of instructions to be completed in a specified sequence, whether by human bakers or computer programs.
Writing in iScience, zoologists have shown that insects have the cognitive abilities to perform so called numerosity estimation, allowing them to solve simple mathematical problems. Zoologist Professor Dr Martin Paul Nawrot and doctoral student Hannes Rapp from the 'Computational Systems Neuroscience' research group at the University of Cologne demonstrated these abilities in a computational model inspired by the honeybee.
DARIEN, IL - Artificial intelligence has the potential to improve efficiencies and precision in sleep medicine, resulting in more patient-centered care and better outcomes, according to a new position statement from the American Academy of Sleep Medicine.
The "Monday Effect" is real - and it's impacting your Amazon package delivery.
So says researcher Oliver Yao, a professor of decision and technology analytics in Lehigh University's College of Business.
He's found that the "Monday Effect" - that letdown of returning to work after a weekend, which is documented to impact finance, productivity and psychology - also negatively affects supply chains.
Rats on a high sugar diet during pregnancy have altered levels of sex steroid hormones (e.g. progesterone) and dopamine in their brains, which may lead to behavioural changes that can affect care of offspring and motivation, as well as increasing the risk of diabetes and liver disease, according to a study published in the Journal of Endocrinology.
Omega-3 fats do not protect against cancer - according to new research from the University of East Anglia.
Increased consumption of omega 3 fats is widely promoted globally because of a common belief that it will protect against, or even reverse, diseases such as cancer, heart attacks and stroke.
But two systematic reviews published today find that omega 3 supplements may slightly reduce coronary heart disease mortality and events, but slightly increase risk of prostate cancer. Both beneficial and harmful effects are small.