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    New Insights into Lung Tissue in COVID-19 disease

    August 24, 2020, Categories  Health/Medical, Biology/Biotechnology

    Sections through the three-dimensional reconstruction volume (upper left, grey) around a pulmonary alveolus with hyaline membrane (lower left, yellow). On the right, the images are superimposed. In the centre is the air bubble (alveolus). The electron density is represented by different shades of grey. On the inside of the air bubble is a layer of proteins and dead cell residues, the “hyaline membrane”. This deposit, which can be represented in its three-dimensional structure for the first time by the new method, reduces the gas exchange and leads to respiratory distress.

    Photo: Tim Salditt, Marina Eckerman

    Physicists at the University of Göttingen, together with pathologists and lung specialists at the Medical University of Hannover, have developed a 3D imaging technique that enables h...

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    Hubble snaps close-up of Celebrity Comet NEOWISE

    August 24, 2020, Categories  Astronomy/Space

    This ground-based image of comet C/2020 F3 (NEOWISE) was taken from the Northern Hemisphere on July 16, 2020. The inset image, taken by the Hubble Space Telescope on Aug. 8, 2020, reveals a close-up of the comet after its pass by the Sun. Hubble’s image zeroes in on the comet’s nucleus, which is too small to be seen. It’s estimated to measure no more than 3 miles (4.8 kilometers) across. Instead, the image shows a portion of the comet’s coma, the fuzzy glow, which measures about 11,000 miles (18,000 kilometers) across in this image. Comet NEOWISE won’t pass through the inner solar system for another nearly 7,000 years.
    Credits: NASA, ESA, STScI, Q. Zhang (Caltech); ground-based image copyright © 2020 by Zoltan G. Levay, used with permission

    NASA Hubble Space Telescope images ...

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    Mild COVID-19 cases can produce strong T cell Response

    August 21, 2020, Categories  Health/Medical, Biology/Biotechnology

    SARS-CoV-2 , COVID-19
    Colorized scanning electron micrograph of a cell (blue) heavily infected with SARS-CoV-2 virus particles (red), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: NIAID

    Mild cases of coronavirus disease 2019 (COVID-19) can trigger robust memory T cell responses, even in the absence of detectable virus-specific antibody responses, researchers report August 14 in the journal Cell. The authors say that memory T cell responses generated by natural exposure to or infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)—the virus that causes COVID-19—may be a significant immune component to prevent recurrent episodes of severe disease.

    “We are currently facing the biggest global health emerge...

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    Researchers shed light on the Building Blocks for next-generation LED displays

    August 21, 2020, Categories  Physics, Technology/Electronics

    This illustration was featured on the back cover of Nanoscale Advances, an open-access journal published by the Royal Society of Chemistry.
    Image Credit: College of Science

    Three teams of researchers at Clemson University have joined forces to unravel some of the mysteries surrounding perovskite nanocrystals, which are semiconductors with numerous applications, including LEDs, lasers, solar cells and photodetectors.

    A research article titled “The correlation between phase transition and photoluminescence properties of CsPbX3 (X=Cl, Br, I) perovskite nanocrystals” recently appeared in Nanoscale Advances, an open-access journal published by the Royal Society of Chemistry...

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