When it comes to learning numbers, culture counts
The findings of a new study suggest that number learning is a fundamental process that follows a universal pathway. However, the timing of the process depends on a child’s environment.
‘Vital signs’ of teaching captured by quick, reliable in-class evaluation
A 20-minute classroom assessment that is less subjective than traditional in-class evaluations by principals can reliably measure classroom instruction and predict student standardized test scores.
Trapping light: a long lifetime in a very small place
Physicists have created a silicon nanocavity that allows light to be trapped 10 times longer than in other similarly-sized optical cavities. Nanocavities are key components of nanophotonics circuits.
Protein anchors help keep embryonic development “just right”
Findings on the cellular-level regulation of proteins called histones by lipid droplets, or “fat depots,” shines light on chromosome production – and possible manipulation of that process.
Better tissue healing with disappearing hydrogels
When stem cells are used to regenerate bone tissue, many wind up migrating away from the repair site, which disrupts the healing process. A new technique keeps the stem cells in place, resulting in faster and better tissue regeneration.
Experiment on earth demonstrates effect observed in space
Streaming jets of high-speed matter produce some of the most stunning objects seen in space. an experiment by French and American researchers using extremely high-powered lasers offers experimental verification of one proposed mechanism for creating them.
Progress made in developing nanoscale electronics
How can you reliably control the current that flows from one electrode to another in a circuit that is the width of a single molecule? The key, according to assistant professor of chemical engineering Alexander Shestopalov, is adding a second, inert layer of molecules.
Andes mountains formed by ‘growth spurts’
Scientists have long been trying to understand how the Andes and other broad, high-elevation mountain ranges were formed. New research by Carmala Garzione, professor of earth and environmental sciences, provides an explanation.
Video gamers’ aggression linked to frustration, not violent content
The disturbing imagery of videos games are often accused of fostering feelings of aggression in players. But a new study shows hostile behavior is linked to gamers’ experiences of failure and frustration during play—not to a game’s violent content.
First 3-D image of structure below Sierra Negra volcano created
Home to some of the most active volcanoes in the world, researchers now have a better picture of the subterranean plumbing system that feeds the Galápagos volcanoes.