articles

Elemental sulfur, the most heavily used pesticide in California, may harm the respiratory health of children living near farms that use the pesticide, according to new research led by UC Berkeley.

In a study of children in the Salinas Valley’s agricultural community, researchers found significant associations between elemental sulfur use and poorer respiratory health. The study linked reduced lung function, more asthma-related symptoms and higher asthma medication use in children living about a half-mile or less from recent elemental sulfur applications compared to unexposed children.

Electricity distribution systems in the USA are gradually being modernized and transposed to smart grids, which make use of two-way communication and computer processing. This is making them increasingly vulnerable to cyber attacks. In a recent paper in Elsevier’s International Journal of Critical Infrastructure Protection, Dr. Sujeet Shenoi and his colleagues from the Tandy School of Computer Science, University of Tulsa, US, have analyzed these security issues. Their report provides crucial keys to ensuring the security of our power supply.

"Sophisticated cyberattacks on advanced metering infrastructures are a clear and present danger," Dr. Shenoi pointed out. Such attacks affect both customers and distribution companies and can take various forms, such as stealing customer data (allowing a burglar to determine if a residence is unoccupied, for instance), taking power from particular customers (resulting in increased power bills), disrupting the grid and denying customers power on a localized or widespread basis.

Invasive mussels and less nutrients from tributaries have altered the Lake Michigan ecosystem making it more conducive to the stocking of lake trout and steelhead than Chinook salmon, according to a recent U.S. Geological Survey and Michigan State University study.

Reduced stocking of Chinook salmon, however, would still support a substantial population of this highly desirable recreational salmon species, which is a large contributor to the Great Lakes multi-billion-dollar recreational fishery.

“Findings from our study can help managers determine the most viable ways to enhance valuable recreational fisheries in Lake Michigan, especially when the open waters of the lake are declining in productivity,” said Yu-Chun Kao, an MSU post-doctoral scientist and the lead author of the report.

A new study has shown that following brain ischemia caused by cerebral blockage in mice both immediate and delayed reduction in body temperature helped limit cell death and levels of a protein called dynamin. These results, which suggest that dynamin may have a role in—and be a potential drug target for—stroke-related neuronal cell death, are reported in Therapeutic Hypothermia and Temperature Management, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Journal website until September 16, 2017.

Additive manufacturing, also known as 3-D printing, is replacing conventional fabrication processes in critical areas ranging from aerospace components to medical implants. But because the process relies on software to control the 3-D printer, additive manufacturing could become a target for malicious attacks – as well as for unscrupulous operators who may cut corners.