Category: Science

Headwater refuges: Combined effect of drought and fire on stream communities

Headwater refuges: Combined effect of drought and fire on stream communities

Life is water, and water is life. This truism certainly applies to the Pacific coast, where streams and rivers function as the region’s arteries. The water they carry fosters plant life and wildlife in Southern California’s Mediterranean climate. They provide sanctuary during droughts and often serve as the nexus for recovery after fires. …read more

Researchers identify key RNA ‘gatekeeper’ in gene expression, pointing to possible new drug targets

Researchers identify key RNA ‘gatekeeper’ in gene expression, pointing to possible new drug targets

Researchers have identified the first non-coding RNA that controls formation of chromosome loops, which govern gene expression. Jpx RNA was previously thought to be involved only in X chromosome inactivation, a necessary step in development of female embryos. This discovery could create new targets for drug developers. …read more

Synthetic tissue can repair hearts, muscles, and vocal cords

Synthetic tissue can repair hearts, muscles, and vocal cords

Combining knowledge of chemistry, physics, biology, and engineering, scientists from McGill University develop a biomaterial tough enough to repair the heart, muscles, and vocal cords, representing a major advance in regenerative medicine. …read more

Summer rains in American Southwest are not your typical monsoon

Summer rains in American Southwest are not your typical monsoon

Monsoons are continental weather events produced when intense summer sunlight heats land more than ocean. But new supercomputer simulations show that North America’s only monsoon works differently. The North American monsoon, which drenches western Mexico and the American Southwest each summer, is generated when the jet stream collides with the Sierra Madre mountains, which diverts it southward and upward, condensing moisture laden air from the eastern Pacific into torrential rains. …read more

Holistic framework can assess fisheries’ strengths and potential weaknesses

Holistic framework can assess fisheries’ strengths and potential weaknesses

A new decision-making framework designed by an international team of fisheries researchers can help fisheries bolster their ability to adapt to a warming world. The tool is meant to take a lot of the guesswork out of finding resilience in a time of climate change. …read more

Largest comet ever observed was active at near-record distance

Largest comet ever observed was active at near-record distance

Astronomers show that comet Bernardinelli-Bernstein (BB), the largest comet ever discovered, was active long before previously thought, meaning the ice within it is vaporizing and forming an envelope of dust and vapor known as a coma. Only one active comet has been observed farther from the sun, and it was much smaller than comet BB. …read more

Researchers shrink camera to the size of a salt grain

Researchers shrink camera to the size of a salt grain

Researchers have developed an ultracompact camera the size of a coarse grain of salt. The new system can produce crisp, full-color images on par with a conventional compound camera lens 500,000 times larger in volume. …read more

Farmers spread Transeurasian languages

Farmers spread Transeurasian languages

New research provides interdisciplinary support for the ‘Farming Hypothesis’ of language dispersal, tracing Transeurasian languages back to the first farmers moving across Northeast Asia beginning in the Early Neolithic — roughly between 8-10 thousand years ago. …read more