Scientists at Microsoft Research in the United States have demonstrated a system called Silica for writing and reading information in ordinary pieces of glass which can store two million books' worth of data in a thin, palm-sized square.
An Osaka Metropolitan University-led research team investigated the decay time of coherent longitudinal optical (LO) phonons both in a GaAs1−xNx epilayer and in a GaAs single crystal to clarify the effects of dilute nitridation.
Mitral regurgitation is the most prevalent valvular heart disease in humans. It's also common among dogs, especially older and smaller breed dogs. In both species, the mitral valve fails to close tightly enough to keep blood from flowing back into the left atrium as the heart is contracting. Untreated, it can lead to heart failure. Surgery is often needed to repair this issue in humans. For dogs, treatment has historically been less advanced, but veterinarians and animal researchers are taking cues from the human health world.
Imagine a material cracking—now imagine what happens if there are small inclusions in the material. Do they create an obstacle course for the crack to navigate, slowing it down? Or do they act as weak points, helping the crack spread faster?
When things vibrate, they make sounds. Molecules do too, but at frequencies far beyond human hearing. Chemical bonds stretch, bend, and twist at characteristic rates that fall in the infrared region of the electromagnetic spectrum. Infrared spectroscopy, which measures how light excites these vibrations, is often likened to listening to a molecule's voice.
When developing new drugs, one thing is particularly important: finding and producing the right molecules that can be used as active ingredients. The key elements of some drugs, such as penicillin, are small, tri- or quadripartite ring molecules. A team led by Prof Frank Glorius from the Institute of Organic Chemistry of the University of Münster (Germany) has now developed a method for efficiently converting readily available basic materials into such small, high-grade ring molecules. The product has a structure reminiscent of a line drawing of a house, hence its name "housane." The reaction is triggered by a photocatalyst that transfers light energy to the molecules to enable the conversion.
A research team led by Professor Su-Il In of the Department of Energy Science and Engineering at DGIST has uncovered the principle that the products and reaction pathways of carbon dioxide (CO2) conversion to fuel via solar energy depend on the design of atomic-level interactions in the catalyst.
NASA's new boss blasted Boeing and the space agency Thursday for Starliner's botched flight that left two astronauts stuck for months at the International Space Station.
Producing clean hydrogen from water is often compared to storing renewable energy in chemical form, but improving the efficiency of that process remains a scientific challenge. Researchers at Tohoku University have now developed a catalyst design that helps hydrogen form more smoothly under alkaline conditions, a key step toward practical green hydrogen production.
Forest loss does more than reduce tree cover. A new global study involving UBC Okanagan researchers shows it can fundamentally change how watersheds hold and release water. The research, published in the Proceedings of the National Academy of Sciences, analyzed data from 657 watersheds across six continents.
