A new longitudinal study looked at how youths' self-concepts are linked to their actual academic achievement in math and reading from middle childhood to adolescence. The study found that students' self-concepts of their abilities in these two academic domains play an important role in motivating their achievements over time and across levels of achievement.
An enzyme discovered at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) proves adept at breaking down cellulose fibers regardless of whether their crystalline structure is simple or highly complex. No other enzyme has shown that ability.
Supermassive black holes found in the centers of galaxies can form gravitationally bound pairs when galaxies merge, according to a study published in the Sept. 18 issue of Nature Astronomy.
A team of scientists analyzed nearly 30 years of revenue and permitting records for individuals fishing in Alaskan waters and tracked how their fishing choices, in terms of permits purchased and species caught, influenced their year-to-year income volatility.
The mass shooting in Plano, Texas, this month was the deadliest of 2017. It also fit a pattern: The shooter had targeted his estranged wife and her friends and family -- and had a history of intimate partner violence (IPV).
PNNL researchers have measured the forces that cause certain crystals to assemble, revealing competing factors that researchers might be able to control. The work has a variety of implications in both discovery and applied science. In addition to providing insights into the formation of minerals and semiconductor nanomaterials, it might also help scientists understand soil as it expands and contracts through wetting and drying cycles.
How do multilingual people solve arithmetical tasks presented to them in different languages? The question will gain in importance in the future, as an increasingly globalized job market and accelerated migration will mean that ever more people seek work and study outside of the linguistic area of their home countries. This question was investigated by a research team led by Dr Amandine Van Rinsveld and Professor Dr Christine Schiltz from the Cognitive Science and Assessment Institute (COSA) at the University of Luxembourg.
Self-healing materials are able to repair autonomously defects, such as scratches, cracks or dents, and resume their original shape. For this purpose, they must be composed of several components whose combined properties result in the desired characteristics. Scientists of the Karlsruhe Institute of Technology (KIT) and the Technion - Israel Institute of Technology now discovered that also tiny particles of pure gold have surprising self-healing capacities.
A pioneering method, developed at Chalmers University of Technology, has demonstrated its potential in a large study, showing that metabolic fingerprints from blood samples could render important new knowledge on the connection between food and health. The study finds that diet is one of the strongest predictors of type 2 diabetes risk in older women.
New research led by the University of Delaware's Jessica Warren resolves 40 years of debate about the strength of olivine, the most abundant mineral in the Earth's mantle. Measuring the strength of olivine is critical to understanding how strong tectonic plates are, which, in turn, matters to how plates break and create subduction zones.