Located in the Central Molecular Zone (CMZ), these filaments could be a part of a cyclical process in one of the galaxy’s most mysterious regions.
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A team of roboticists and AI specialists at the Robotics & Artificial Intelligence Lab in Korea has designed, built and successfully tested a four-legged robot that is capable of conducting high-speed parkour maneuvers. In their paper published in the journal Science Robotics, the group describes how they gave their robot a controller capable of both planning and tracking its own movements to allow it to freely traverse a range of environments.
Parkour is an obstacle course type athletic discipline that takes place in unpredictable, real-world, generally urban environments —it involves climbing walls, jumping between buildings, maneuvering around objects and running across difficult, uneven terrain. The objective is to get from one place to another without injury. To give their robot the ability to conduct parkour maneuvers, the team made one change right away—they gave it four legs.
The next thing they did was design and build a special kind of controller, one that was capable of planning the route to be taken and a tracker that told the robot where to place its feet and how to use its body to move forward safely.
A small team of roboticists at Robotic Systems Lab, ETH Zurich, in Switzerland, has designed, built and tested a four-legged robot capable of playing badminton with human players.
In their study, published in the journal Science Robotics, the group used a reinforcement learning-based controller to give the robot the ability to track, predict and respond to the movement of a shuttlecock in play, demonstrating the feasibility of using multi-legged robots in dynamic sports scenarios.
Badminton is a sport similar to tennis, the main difference being the use of a shuttlecock rather than a tennis ball. The goal is the same: to hit the shuttlecock over a net placed midcourt to an awaiting opponent.
Being cut off in traffic, giving a presentation or missing a meal can all trigger a suite of physiological changes that allow the body to react swiftly to stress or starvation. Critical to this “fight-or-flight” or stress response is a molecular cycle that results in the activation of protein kinase A (PKA), a protein involved in everything from metabolism to memory formation. Now, a study by researchers at Penn State has revealed how this cycle resets between stressful events, so the body is prepared to take on new challenges.
The details of this reset mechanism, uncovered through a combination of imaging, structural and biochemical techniques, are published in the Journal of the American Chemical Society.
“Some of the early changes in the fight-or-flight response include the release of hormones, like adrenaline from stress or glucagon from starvation,” said Ganesh Anand, associate professor of chemistry and of biochemistry and molecular biology in the Penn State Eberly College of Science and lead author of the paper.
Blood vessels are like big-city highways; full of curves, branches, merges, and congestion. Yet for years, lab models replicated vessels like straight, simple roads.
To better capture the complex architecture of real human blood vessels, researchers in the Department of Biomedical Engineering at Texas A&M University have developed a customizable vessel-chip method, enabling more accurate vascular disease research and a drug discovery platform.
Vessel-chips are engineered microfluidic devices that mimic human vasculature on a microscopic scale. These chips can be patient-specific and provide a non-animal method for pharmaceutical testing and studying blood flow. Jennifer Lee, a biomedical engineering master’s student, joined Dr. Abhishek Jain’s lab and designed an advanced vessel-chip that could replicate real variations in vascular structure.
Scientists develop QLED-inspired shell for nanodiamonds, transforming them into quantum sensors that can operate within living cells.
A research study led by Oxford University has developed a powerful new technique for finding the next generation of materials needed for large-scale, fault-tolerant quantum computing. This could end a decades-long search for inexpensive materials that can host unique quantum particles, ultimately facilitating the mass production of quantum computers.
The results have been published in the journal Science.
Quantum computers could unlock unprecedented computational power far beyond current supercomputers. However, the performance of quantum computers is currently limited, due to interactions with the environment degrading the quantum properties (known as quantum decoherence). Physicists have been searching for materials resistant to quantum decoherence for decades, but the search has proved experimentally challenging.
A study published in Nature Communications presents a way to create deployable structures that transform from compact folded states into expansive configurations with perfectly smooth surfaces.
New research on the CNTR shows it could drastically improve spacecraft efficiency with liquid uranium fuel.