Physics

Houston Medical Students to Speak Live with NASA Astronaut on Space Station

Medical students from The University of Texas Health Sciences Center (UTHealth) in Houston will speak with an astronaut aboard the International Space Station next week.

Houston Medical Students to Speak Live with NASA Astronaut on Space Station

Medical students from The University of Texas Health Sciences Center (UTHealth) in Houston will speak with an astronaut aboard the International Space Station next week.

Deep neural networks help to identify the neutrinoless double beta decay signal

A group of researchers from Shanghai Jiao Tong University and Peking University greatly improved the discrimination power of tracks from different particles passing through the gaseous detector with the help of deep convolutional neural networks. The work will help to improve the sensitivity of detection for the PandaX-III neutrinoless double beta decay experiment, and deepen our knowledge of the nature of neutrinos.

Perovskite semiconductors seeing right through next generation X-ray detectors

From observing celestial objects to medical imaging, the sensitive detection of X-rays plays a central role in countless applications. However, the methods used to detect them have undergone an interesting evolution of their own.

New observations to understand the phase transition in quantum chromodynamics

The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved nearly freely in a quark-gluon plasma.

Neutrons produce first direct 3-D maps of water during cell membrane fusion

New 3-D maps of water distribution during cellular membrane fusion are accelerating scientific understanding of cell development, which could lead to new treatments for diseases associated with cell fusion. Using neutron diffraction at the Department of Energy's Oak Ridge National Laboratory, researchers have made the first direct observations of water in lipid bilayers used to model cell membrane fusion.

Neutrons produce first direct 3-D maps of water during cell membrane fusion

New 3-D maps of water distribution during cellular membrane fusion are accelerating scientific understanding of cell development, which could lead to new treatments for diseases associated with cell fusion.

NASA Updates Live Coverage of Japanese Cargo Launch, Delays Spacewalks

Delayed due to inclement weather, the Japan Aerospace Exploration Agency (JAXA) now is targeting 1:52 p.m. EDT Saturday, Sept. 22 (2:52 a.m. Sept. 23 in Japan), for the launch of its unpiloted H-II Transfer Vehicle-7 (HTV-7) cargo spacecraft.

Researchers determine absolute duration of photoelectric effect for the first time

The photoelectric effect provides the basis for solar energy and global communications; Albert Einstein described it over a century ago. For the first time, scientists from the Technical University of Munich (TUM), the Max-Planck Institute of Quantum Optics (MPQ), and the TU Wien have now measured the absolute duration of the light absorption and of the resulting photoelectron released from a solid body.

Researchers decipher the dynamics of electrons in perovskite crystals

Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have proven that incoming light causes the electrons in warm perovskites to rotate, thus influencing the direction of the flow of electrical current. They have thus found the key to an important characteristic of these crystals, which could play an important role in the development of new solar cells. The results have now been published in Proceedings of the National Academy of Sciences.

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