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Commentary: Mary Flynn: Tips to Avoid Holiday Overeating

The holidays thrust many people, often happily, into social contexts that encourage overeating. While people often survive the holidays with, on average, only a small weight gain, overeating in December is just as unhealthy as it is at less festive times of year when holiday “license to eat” isn’t in effect. To help guide people healthfully through holiday parties, family dinners, and snacking during downtime at home, Mary Flynn, a clinical associate professor of medicine in the Warren Alpert Medical School and a research dietitian at The Miriam Hospital, offers these tips. (more…)

Fire and Ice: Wildfires Darkening Greenland Snowpack, Increasing Melting

Environment

SAN FRANCISCO — Satellite observations have revealed the first direct evidence of smoke from Arctic wildfires drifting over the Greenland ice sheet, tarnishing the ice with soot and making it more likely to melt under the sun. (more…)

Cassini Spots Mini Nile River on Saturn Moon

Science

PASADENA, Calif. – Scientists with NASA’s Cassini mission have spotted what appears to be a miniature, extraterrestrial likeness of Earth’s Nile River: a river valley on Saturn’s moon Titan that stretches more than 200 miles (400 kilometers) from its “headwaters” to a large sea. It is the first time images have revealed a river system this vast and in such high resolution anywhere other than Earth. (more…)

Do We Live in a Computer Simulation? UW Researchers Say Idea Can be Tested

Science

A decade ago, a British philosopher put forth the notion that the universe we live in might in fact be a computer simulation run by our descendants. While that seems far-fetched, perhaps even incomprehensible, a team of physicists at the University of Washington has come up with a potential test to see if the idea holds water. (more…)

Keep on Truckin’?

Technology

Friends may help reduce package delivery costs

Every day trucks ply the neighborhoods of America, driving “the last mile” of the delivery chain for goods ordered through Amazon, eBay, and other online retailers. (more…)

Prostate Cancer Now Detectable Using Imaging-Guided Biopsy, UCLA Study Shows

Health

Groundbreaking research by a team of UCLA physicians and engineers demonstrates that prostate cancer — long identifiable only through painful, hit-or-miss biopsies — can be diagnosed far more easily and accurately using a new image-guided, targeted biopsy procedure. (more…)

Seeing in Color at the Nanoscale

Science

Berkeley Lab scientists develop a new nanotech tool to probe solar-energy conversion

If nanoscience were television, we’d be in the 1950s. Although scientists can make and manipulate nanoscale objects with increasingly awesome control, they are limited to black-and-white imagery for examining those objects. Information about nanoscale chemistry and interactions with light—the atomic-microscopy equivalent to color—is tantalizingly out of reach to all but the most persistent researchers.

But that may all change with the introduction of a new microscopy tool from researchers at the Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) that delivers exquisite chemical details with a resolution once thought impossible. The team developed their tool to investigate solar-to-electric energy conversion at its most fundamental level, but their invention promises to reveal new worlds of data to researchers in all walks of nanoscience. (more…)

Environmental Issues: How True the Climate Changes Affecting Biodiversity

Environment

A changing climate has implications on biodiversity without any doubt. Species in the past have been sensitive to changes in the climate; that has been proved time and again by the fossilized remains and pollen distribution studies. It has been seen or can be concluded safely that climate changes have led to extinction of species in one area and colonization in another. (more…)