Tech
Tiny particles composed of metals and semiconductors could serve as light sources in components of future optical computers, as they are able to precisely localize and extremely amplify incident laser light. A team from Germany and Sweden led by Prof. Dr. Christoph Lienau and Dr. Jin-Hui Zhong from the University of Oldenburg has now explained for the first time how this process works. The study is published in the current issue of the journal Nature Communications.
The next time you eat sashimi, nigiri or other forms of raw fish, consider doing a quick check for worms.
A new study led by the University of Washington finds dramatic increases in the abundance of a worm that can be transmitted to humans who eat raw or undercooked seafood. Its 283-fold increase in abundance since the 1970s could have implications for the health of humans and marine mammals, which both can inadvertently eat the worm.
The smart watches seen on the wrists of roughly 1 in 5 Americans could be more than just a fun gimmick but a potentially useful research tool to track habitual physical activity levels. People who took more steps daily, as tracked by their watch, had lower blood pressure on average than those taking fewer steps in a study presented at the American College of Cardiology's Annual Scientific Session Together with World Congress of Cardiology (ACC.20/WCC).
We all have stress in our lives--whether it's due to financial woes, work pressures, relationship issues, illness or even natural disasters or health crises like the emerging coronavirus. For some people who survive a heart attack, it seems mental stress--as opposed to physical stress--may be a stronger predictor of a repeat heart attack or dying from heart disease, according to research presented at the American College of Cardiology's Annual Scientific Session Together with World Congress of Cardiology (ACC.20/WCC).
PHILADELPHIA - The protein peptidyl arginine deiminase 4 (PAD4), which enables some immune cells to trap bacteria, promoted breast cancer metastasis in mice when expressed in cancer cells, according to data published in Molecular Cancer Research, a journal of the American Association for Cancer Research.
A research team consisting of Ryota Kondo (Ph.D. candidate), Yamato Tani (Graduate student), and Professor Michiteru Kitazaki from Toyohashi University of Technology, Associate Professor Maki Sugimoto and Professor Kouta Minamizawa from Keio University, and Professor Masahiko Inami from The University of Tokyo has revealed that a re-association of the right thumb with the virtual left arm can be induced by visuo-motor synchronization in a virtual environment; however, this re-association may be weaker than the natural association.
A new Stanford study reveals that a common scientific approach of predicting the likelihood of future extreme weather events by analyzing how frequently they occurred in the past can lead to significant underestimates - with potentially significant consequences for people's lives.
Stanford climate scientist Noah Diffenbaugh found that predictions that relied only on historical observations underestimated by about half the actual number of extremely hot days in Europe and East Asia, and the number of extremely wet days in the U.S., Europe and East Asia.
Advances in soft robotics could someday allow robots to work alongside humans, helping them lift heavy objects or carrying them out of danger. As a step toward that future, Stanford University researchers have developed a new kind of soft robot that, by borrowing features from traditional robotics, is safe while still retaining the ability to move and change shape.
The movement of sea ice between Arctic countries is expected to significantly increase this century, raising the risk of more widely transporting pollutants like microplastics and oil, according to new research from CU Boulder.
The study in the American Geophysical Union journal Earth's Future predicts that by mid-century, the average time it takes for sea ice to travel from one region to another will decrease by more than half, and the amount of sea ice exchanged between Arctic countries such as Russia, Norway, Canada and the United States will more than triple.
To understand the behavior of quantum particles, imagine a pinball game - but rather than one metal ball, there are billions or more, all ricocheting off each other and their surroundings.
Physicists have long tried to study this interactive system of strongly correlated particles, which could help illuminate elusive physics phenomena like high-temperature superconductivity and magnetism.
WASHINGTON -- Researchers have designed a new camera that could allow hypertelescopes to image multiple stars at once. The enhanced telescope design holds the potential to obtain extremely high-resolution images of objects outside our solar system, such as planets, pulsars, globular clusters and distant galaxies.
Ion channels, which allow potassium and sodium ions to flow in and out of cells, are crucial in neuronal 'firing' in the central nervous system and for brain and heart function. These channels use a "ball-and-chain" mechanism to help regulate their ion flow, according to a new study led by Weill Cornell Medicine scientists.
The study, published March 18, 2020, in Nature, confirms a long-standing hypothesis about ion channels, and represents a key advance in the understanding of the basic biological processes at work in most cells.
WEST LAFAYETTE, Ind. - Virtual reality headsets and application programs for VR are not gaining traction with users because of a chicken-and-egg dilemma, lack of VR content and slow market penetration of custom-made VR units.
Now, Purdue University researchers have created a new approach to VR that allows multiple players to interact with the same VR game on smartphones and provides new opportunities for enterprise, education, health care and entertainment applications.
Boulder, Colo., USA: A topic of considerable interest to paleontologists is how dinosaur-dominated ecosystems were structured, how dinosaurs and co-occurring animals were distributed across the landscape, how they interacted with one another, and how these systems compared to ecosystems today. In the Late Cretaceous (~100-66 million years ago), North America was bisected into western and eastern landmasses by a shallow inland sea.
When NASA's Aqua satellite passed over the Southern Indian Ocean on Mar. 18, it gathered water vapor data that showed wind shear was adversely affecting Tropical Cyclone Herold.