Tech

An electrode designed like a pomegranate – with silicon nanoparticles clustered like seeds in a tough carbon rind – overcomes several remaining obstacles to using silicon for a new generation of lithium-ion batteries, say its inventors at Stanford University and the Department of Energy's SLAC National Accelerator Laboratory.

Stanford Professor Mark Jacobson and his colleagues recently developed detailed plans totransform the energy infrastructure of New York, California and Washington states from fossil fuelsto 100 percent renewable resources by 2050. On Feb. 15, Jacobson will present a new roadmap torenewable energy for all 50 states at the annual meeting of the American Association for theAdvancement of Science (AAAS) in Chicago.

The weakly electric black ghost knifefish of the Amazon basin has inspired Northwestern University's Malcolm MacIver and an interdisciplinary team of researchers to develop agile fish robots that could lead to a vast improvement in underwater vehicles used to study fragile coral reefs, repair damaged deep-sea oil rigs or investigate sunken ships.

Larry Smarr, a physicist whose work at the University of Illinois at Urbana-Champaign on calculating black hole collisions led him to champion a federal commitment to dramatically enhance U.S. computing power – which in turn led to the development of NCSA Mosaic, the precursor to web browsers – was named today as the first 2014 recipient of the Golden Goose Award.

African-Americans spend more time than any other group getting to work and in some cases spend about 15 minutes more a day than whites commuting, according to research by Virginia Parks, associate professor at the University of Chicago School of Social Service Administration.

That can be a 25 percent increase over an average urban two-way commute of about an hour, she found, based on a study of 2011 U.S. Census Bureau data.

Pour sand from a bucket and it flows like a liquid, but stand on it and it supports weight like a solid. This unusual behavior is a property of granular materials, and it is one of the reasons Heinrich Jaeger, the William J. and Alicia Townsend Friedman Professor in Physics at the University of Chicago, has chosen to focus on these types of materials in his research.

DURHAM, N.C. -- Every year waste treatment facilities in the United States process more than eight million tons of semi-solid sewage called biosolids -- about half of which is recycled into fertilizer and spread on crop land.

The practice helps solve storage issues and produces revenue to support the treatment plants, but what else is being spread in that sludge?

Think of an oil spill, and images of fouled beaches and oil-soaked seabirds come to mind. But there are less visible effects as well. For instance, even low levels of oil pollution can damage the developing hearts of fish embryos and larvae, reducing the likelihood that those fish will survive. Scientists have known of this effect for some time, but the underlying mechanism has remained elusive.

Researchers at the University of Guelph examined the energy use and greenhouse gas (GHG) emissions associated with corn production in Ontario. Their findings are published today in the Agricultural Institute of Canada's (AIC) Canadian Journal of Soil Science.

Changes in the selling prices of cars can be used to improve calculations for how much people should be paying to lease a vehicle, according to a new study.

In a letter to The BMJ this week, they explain that, for more than 30 years, bodybuilders have taken tamoxifen to prevent and treat gynaecomastia (breast swelling) caused by use of anabolic steroids.

Usually, tamoxifen is sourced from the illicit market, they say. However, bodybuilding discussion forums have speculated that a dietary supplement called Esto Suppress contains tamoxifen because the label listed one of its chemical names.

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Scientists from Stanford University and the National Oceanic and Atmospheric Administration (NOAA) have discovered that crude oil interferes with fish heart cells. The toxic consequence is a slowed heart rate, reduced cardiac contractility and irregular heartbeats that can lead to cardiac arrest and sudden cardiac death.

The research, published in the Feb. 14 issue of Science, is part of the ongoing Natural Resource Damage Assessment of the April 2010 Deepwater Horizon oil spill.

The first thorough comparison of evidence for natural gas system leaks confirms that organizations including the Environmental Protection Agency (EPA) have underestimated U.S. methane emissions generally, as well as those from the natural gas industry specifically.

Cambridge, Mass. – February 13, 2014 – On the plains of Namibia, millions of tiny termites are building a mound of soil—an 8-foot-tall "lung" for their underground nest. During a year of construction, many termites will live and die, wind and rain will erode the structure, and yet the colony's life-sustaining project will continue.