The National Institute of Information and Communications Technology (NICT) generated a real-time signal of an accurate time scale by combining an optical lattice clock and a hydrogen maser. The signal generated in this optical-microwave hybrid system continued for half a year without interruption. The resultant 'one second' deviated by 0.8 ns in half a year relative to TT(BIPM). This demonstration proves the capability to keep time with respect to the future optical definition of the second.
A new particle detector design proposed at the US Department of Energy's Berkeley Lab could greatly broaden the search for dark matter -- which makes up 85 percent of the total mass of the universe yet we don't know what it's made of - into an unexplored realm.
A pair of autonomous robots developed by Carnegie Mellon University's Robotics Institute will soon be driving through miles of pipes at the US Department of Energy's former uranium enrichment plant in Piketon, Ohio, to identify uranium deposits on pipe walls.
Professor CAI Gang from USTC and Professor Jacques Côté's team reports the 4.7 Å structure of the yeast NuA4/TIP60 complex, which elucidates the detailed architecture and molecular interactions between NuA4 subunits. A related study is published online in Nature Communications on March 19.
A new class of hybrid materials shows promise as an affordable and sustainable product for reducing particulate matter in air and organic pollutants in wastewater. The material, produced inexpensively from an industrial waste by-product and naturally abundant polymers, performed more efficiently than activated carbon, the current gold standard.
Bacterial infections that target the intestine can cause conditions that range from uncomfortable to deadly. While it's easy to blame the bacteria, it's actually the toxins the bacteria produce that trigger inflammation, diarrhea, fever and cramps. Researchers now report the development of a microgel scavenger that targets toxins instead of bacteria. They will present their results today at the 255th National Meeting & Exposition of the American Chemical Society.
Stainless steel is the gold standard for kitchen appliances and cookware, but bacteria can grow on these surfaces, contaminating food. Current coatings available on the market are pricey and potentially harmful, so scientists have now developed an affordable specialized polymer coating for such surfaces that they can recharge with bleach treatments. The researchers are presenting their results today at the 255th National Meeting & Exposition of the American Chemical Society.
The recent Thomas Fire was the largest wildfire in in California's modern history. Now, researchers report that wildfires in forested watersheds can have a variable but predictable impact on the substances that are released from soils and flow into drinking water sources. The research provides important insights for water utilities evaluating treatment options after severe wildfires. The scientists will present their results today at the 255th National Meeting & Exposition of the American Chemical Society.
If scientists are going to deliver on the promise of implantable artificial organs or clothing that dries itself, they'll first need to solve the problem of inflexible batteries that run out of juice too quickly. Today, researchers report that they've developed a new material by weaving two polymers together in a way that increases charge storage capacity. The researchers are presenting their results at the 255th National Meeting & Exposition of the American Chemical Society.
Infusing foods with smoke can impart delicious nuanced flavors, but could also come with an unwelcome side of carcinogens. To reduce the carcinogen content of smoked foods, researchers took a lesson from the automobile industry, running the smoke through a zeolite filter to remove harmful compounds. It worked, and with a happy bonus: superior smoke flavor. The researchers will present their results today at the 255th National Meeting & Exposition of the American Chemical Society.