Brain

Elementary schools tend to discipline black students more harshly than white students, leading to a considerable racial gap in expulsion and suspension. That's among the findings of a new data analysis led by researchers at Brown and Princeton universities.

A new study has found that offering children a wide variety and large quantities of snack food
encourages them to eat more - and this practice may be contributing to Australia's weight problem.

The research*, led by the Murdoch Children's Research Institute and published in the latest
International Journal of Obesity, also found that how snacks are presented (in a large or small
container) has little influence on how much children snack.

A significant jump in preterm births to Latina mothers living in the U.S. occurred in the nine months following the November 8, 2016 election of President Donald Trump, according to a study led by a researcher at the Johns Hopkins Bloomberg School of Public Health.

Greenland's more than 860,000 square miles are largely covered with ice and glaciers, and its melting fuels as much as one-third of the sea level rise in Florida. That's why a team of University of South Florida geoscientists' new discovery of one of the mechanisms that allows Greenland's glaciers to collapse into the sea has special significance for the Sunshine State.

Argonne develops novel method to more clearly see complex materials physics in difficult-to-access environments.

With the right tools, scientists can have Superman-like X-ray vision that reveals hidden features buried within objects — but it’s highly complicated.

The Advanced Photon Source (APS), an Office of Science User Facility at the U.S. Department of Energy’s (DOE) Argonne National Laboratory, gives scientists access to highly penetrating X-rays that can illuminate — at the atomic level — materials contained deep within other structures.

Lower-income parents are less likely than their higher-income counterparts to involve their children in youth sports because of obstacles such as rising costs of these extracurricular activities, according to a new RAND Corporation study.

WASHINGTON -- Women have come a long way in the United States over the last 70 years, to the point where they are now seen as being as competent as men, if not more so, according to research published by the American Psychological Association.

July 18, 2019 - An article featured in the journal Weed Science sheds important new light on the genetics and potential control of Palmer amaranth and waterhemp - two troublesome Amaranthus species weeds that are resistant to multiple herbicides.

While most Amaranthus species are monoecious and contain both male and female flowers on a single plant, Palmer amaranth and waterhemp are dioecious. Some plants are female, while others are male. This reproductive difference promotes outcrossing and genetic diversity, which can fuel herbicide-resistant populations.

Scientists have confirmed that viruses can kill marine algae called diatoms and that diatom die-offs near the ocean surface may provide nutrients and organic matter for recycling by other algae, according to a Rutgers-led study.

EVANSTON, Ill. -- A stealthy new drug-delivery system disguises chemotherapeutics as fat in order to outsmart, penetrate and destroy tumors.

Thinking the drugs are tasty fats, tumors invite the drug inside. Once there, the targeted drug activates, immediately suppressing tumor growth. The drug also is lower in toxicity than current chemotherapy drugs, leading to fewer side effects.

Chemistry is more than just mixing compound A with compound B to make compound C. There are catalysts that affect the reaction rate, as well as the physical conditions of the reaction and any intermediate steps that lead to the final product. If you're trying to make a new chemical process for, say, pharmaceutical or materials research, you need to find the best of each of these variables. It's a time-consuming trial-and-error process.

Or, at least, it was.

A genetic mutation linked to dilated cardiomyopathy, a dangerous enlargement of the heart's main pumping chamber, activates a biological pathway normally turned off in healthy adult hearts, according to a study by researchers at the Stanford University School of Medicine.

Chemically inhibiting the pathway corrected the mutation's effects in patient-derived heart cells in a lab dish, the study found. The researchers accomplished this with drugs already approved by the Food and Drug Administration.

What The Study Did: This observational study included 46,000 injured workers in Tennessee who weren't taking opioids at the time of their injury and looked at how common long-term opioid use was and what factors were associated with it.

Authors: Zoe Durand, Ph.D., of the Tennessee Department of Health in Nashville, is the corresponding author.

(doi:10.1001/jamanetworkopen.2019.7222)

The U.S. recently celebrated the Fourth of July with dazzling fireworks displays in many cities. After the "oohs" and "ahhs" faded, some people might have wondered how the lingering gunpowder-scented smoke affected air quality. Now researchers reporting in ACS Earth and Space Chemistry have conducted detailed measurements and found increased levels of several pollutants after an Independence Day fireworks event in Albany, New York.

DGIST announced on July 4 that Professor Min-Soo Kim's team in the Department of Information and Communication Engineering developed the DistME (Distributed Matrix Engine) technology that can analyze 100 times more data 14 times faster than the existing technologies. This new technology is expected to be used in machine learning that needs big data processing or various industry fields to analyze large-scale data in the future.