Tech

Sindoor -- a cosmetic powder sold in the United States and used during Hindu religious and cultural ceremonies -- has unsafe levels of lead, according to a Rutgers University study.

New Virginia Tech research suggests there's wide variation in the risk that unmanned aircraft pose to people on the ground.

Many of the most promising applications for these aircraft -- including package delivery, public safety, and traffic management -- entail flights over people and raise the possibility, however unlikely, of an impact between the aircraft and a human.

BEER-SHEVA, Israel...Sept. 19, 2017 - Ben-Gurion University of the Negev (BGU) researchers have demonstrated that security cameras infected with malware can receive covert signals and leak sensitive information from the very same surveillance devices used to protect facilities.

The method, according to researchers, will work on both professional and home security cameras, and even LED doorbells, which can detect infrared light (IR), not visible to the human eye.

WASHINGTON, D.C., Sept. 19, 2017 -- Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a phenomenon similar to an effect observed in circular galleries, such as in some cathedrals or museums, where sound waves travel across the gallery and are reflected and refocused tightly enough that a whisper on one side can be heard on the other.

Researchers in SFU's School of Computing Science have been working with Disney Research to develop a new way to assess and predict the facial expressions of movie goers. This method could help to make artificial data created in animation look more realistic.

The method uses factorized variational autoencoders -- or FVAEs, computer algorithms that automatically analyze patterns in data. The researchers found they demonstrate "a surprising ability" to reliably predict viewers' facial expressions for the remainder of the movie after just a few minutes of observation.

PHILADELPHIA -- (Sept. 19, 2017) -- In a multi-institutional collaborative study, scientists at The Wistar Institute and the Medical University of Vienna, Austria, have identified the role of tumor-infiltrating or tumor-associated B-cells ("TABs") in melanoma progression and resistance to targeted therapy. This study provides a molecular mechanism that governs the cross-talk between TABs and tumor cells as well as a potential new therapeutic strategy for combating tumors resistant to treatment. The study was published online in Nature Communications.

WASHINGTON, D.C., September 19, 2017 -- The beautiful sound of birdsongs emerging from the trees is a wonderful example of how much nature can still teach us, even as much about their origins are still mysterious to us. About 40 percent of bird species learn to vocalize when they are exposed to a tutor, a behavior of interest to many neurologists and neurobiologists. The other 60 percent can vocalize instinctually in isolation. The variety across species, and the relationship between the nervous system and biomechanics makes birdsong production a complex process to unravel and understand.

WASHINGTON, D.C., Sept. 19, 2017 - Fluorescence microscopy gives researchers incredible power to illuminate the tiniest structures and capture the real-time activities of live cells by tagging biological molecules with a veritable rainbow of fluorescent dyes. This power comes at a cost: The technology can be expensive and time-consuming and, so far, has resisted attempts at automation.

Progress on the way to smart nanomachines: Chemists of Ludwig-Maximilians-Universitaet (LMU) in Munich have modified the synthesis of a molecular motor so as to reduce the speed of its light-driven rotation, thus permitting the researchers to analyze the mechanism of motion in complete detail.

CARVER, Mass., September 19, 2017 - A thorough review of dozens of studies led scientists to conclude that healthcare professionals should be telling their patients to have cranberry products as a first step in reducing recurrent UTIs. The comprehensive meta-analysis and assessment of human clinical trials, published in the official journal of the American Urological Association, The Journal of Urology®, assures practitioners and their patients that cranberry products are a low cost, low risk and effective way to help prevent recurrent UTIs.1