Search Results for: assessments
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3,585 results
3,585 results for: assessments
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Striving to break the global grip of malnutrition
Editor in chief Nancy Shute discusses the quest for solutions in challenges such as childhood malnutrition, Andean bear conservation and assessing AI’s cognition.
- Climate
Buying carbon credits to fight climate change? Here’s what to know
Carbon credits sold on the voluntary market are under scrutiny for not offsetting greenhouse gas emissions as claimed.
- Archaeology
A race to save Indigenous trails may change the face of archaeology
As construction of a pipeline nears, an effort to preserve an Indigenous trail in Canada tests whether heritage management can keep up with advances in archaeology.
- Artificial Intelligence
AI’s understanding and reasoning skills can’t be assessed by current tests
Assessing whether large language models — including the one that powers ChatGPT — have humanlike cognitive abilities will require better tests.
- Climate
Satellite space junk might wreak havoc on the stratosphere
Hundreds of defunct satellites plunge toward Earth every year. Scientists are studying how the chemical stew left in their wake impacts the atmosphere.
- Chemistry
Scientists may have an explanation for why some batteries don’t last
A long-standing idea of why lithium ion batteries die focuses on lithium movement into the cathode. Instead, hydrogen may be to blame.
- Planetary Science
NASA’s Europa mission is a homecoming for one planetary astronomer
Over her long career, Bonnie Buratti has seen the search for life in the solar system go from a joke to a flagship mission.
- Health & Medicine
Toxic dangers lurk in LA, even in homes that didn’t burn
Urban wildfires like LA’s make harmful chemicals from burning plastics and electronics that can make indoor air dangerous for months.
- Science & Society
The ‘Does It Fly?’ podcast separates fact from science fiction
The podcast ‘Does It Fly?’ asks whether the technology of Star Trek, Doctor Who and other popular sci-fi shows could really work.
- Health & Medicine
A new algae-based menstrual pad could stop leaks
By turning period blood into a gel, the pad’s alginate powder filler reduces leakage.
- Chemistry
Old books can have unsafe levels of chromium, but readers’ risk is low
An analysis of a university collection found that the vibrant pigments coating some Victorian-era tomes exceed exposure limits for the heavy metal.
- Health & Medicine
A new drug shows promise for hot flashes due to menopause
Two clinical trials found that the nonhormonal drug elinzanetant eased hot flashes and improved sleep, two common menopause symptoms.
