Education

Early childhood problems linked to persistent school absenteeism

Children who are not considered "school-ready" by their teachers are more than twice as likely to become persistently absent at some point in their education, according to a new study led by the University of Leeds.

Materials Science

Simple new process stores carbon dioxide in concrete without compromising strength

By using a carbonated—rather than a still—water-based solution during the concrete manufacturing process, a Northwestern University-led team of engineers has discovered a new way to store carbon dioxide (CO2) in the ubiquitous ...

Surprising phosphate finding in NASA's OSIRIS-REx asteroid sample

Scientists have eagerly awaited the opportunity to dig into the 4.3-ounce (121.6-gram) pristine asteroid Bennu sample collected by NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security—Regolith ...

New study reveals comet airburst evidence from 12,800 years ago

Researchers continue to expand the case for the Younger Dryas Impact hypothesis. The idea proposes that a fragmented comet smashed into the Earth's atmosphere 12,800 years ago, causing a widespread climatic shift that, among ...

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Medical Xpress

Tech Xplore

AI-generated exam submissions evade detection at UK university

In a test of the examinations system of the University of Reading in the UK, artificial intelligence (AI)-generated submissions went almost entirely undetected, and these fake answers tended to receive higher grades than ...

How forest fires also have an impact on lakes

The forest fires in Canada during the summer of 2023 were particularly devastating. With the destructive impact on human infrastructure, plumes of smoke covering thousands of square kilometers and millions of tons of CO2 ...

Determining refractive index at relativistic speeds

If you studied advanced physics at high school, there's a good chance that you remember Snell's law, which states how a ray of light bends when it crosses a boundary between two media. According to this law, the ratio of ...