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Achuta Kadambi, an assistant professor at the UCLA Samueli School of Engineering, published a column in the journal
Science about how medical devices can be fundamentally biased not just in dataset representation as has been widely reported, but from a deeper root: the laws of physics.
Kadambi described how the inherent physics behind medical devices could vary across race and gender. He cited several examples of potential physics-based bias. For example, recent research has shown that a pulse oximeter a medical device typically placed on a fingertip that uses infrared and light beams to measure oxygen saturation of the blood and the pulse rate is more likely to miss low levels in people with darker skin.
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IMAGE: Researchers doped cobalt oxide with tin to create a more efficient electrode for use in supercapacitors. This microscopic image shows the new material on graphene film. view more
Credit: JIA ZHU/PENN STATE
A sustainable, powerful micro-supercapacitor may be on the horizon, thanks to an international collaboration of researchers from Penn State and the University of Electronic Science and Technology of China. Until now, the high-capacity, fast-charging energy storage devices have been limited by the composition of their electrodes the connections responsible for managing the flow of electrons during charging and dispensing energy. Now, researchers have developed a better material to improve connectivity while maintaining recyclability and low cost.
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ITHACA, N.Y. - If you want to build a fully functional nanosized robot, you need to incorporate a host of capabilities, from complicated electronic circuits and photovoltaics to sensors and antennas.
But just as importantly, if you want your robot to move, you need it to be able to bend.
Cornell researchers have created micron-sized shape memory actuators that enable atomically thin two-dimensional materials to fold themselves into 3D configurations. All they require is a quick jolt of voltage. And once the material is bent, it holds its shape - even after the voltage is removed.
As a demonstration, the team created what is potentially the world s smallest self-folding origami bird. And it s not a lark.
Credit: Christian Fleury (INRS)
Finding the best materials for tomorrow s electronics is the goal of Professor Emanuele Orgiu of the Institut national de la recherche scientifique (INRS). Among the materials in which Professor Orgiu is interested, some are made of molecules that can conduct electricity. He has demonstrated the role played by molecular vibrations on electron conductivity on crystals of such materials. This finding is important for applications of these molecular materials in electronics, energy and information storage. The study, conducted in collaboration with a team from the INRS and the University of Strasbourg (France), was published in the prestigious
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IMAGE: Zakya H. Kafafi has been elected to the National Academy of Engineering. She serves as Distinguished Research Fellow in Electrical and Computer Engineering in Lehigh University s P.C. Rossin College of. view more
Credit: Lehigh University
Zakya H. Kafafi, Distinguished Research Fellow within the P.C. Rossin College of Engineering and Applied Science at Lehigh University, was recently elected to the National Academy of Engineering (NAE), one of the highest honors given to engineers in the United States.
The NAE provides guidance to the federal government and conducts independent studies in engineering while honoring individuals who have made significant contributions to research, practice, and education, and who have been influential in new fields of technology.