Recent Comments

    Spinning Electrons open the door to future Hybrid Electronics

    June 30, 2017, Categories  Technology/Electronics, Physics

    Spin injection and helicity control of surface spin photocurrent in a three dimensional topological insulator. Nature Communications, 2017; 8: 15401 DOI: 10.1038/ncomms15401

    Spin injection and helicity control of surface spin photocurrent in a three dimensional topological insulator. Nature Communications, 2017; 8: 15401 DOI: 10.1038/ncomms15401

    A discovery of how to control and transfer spinning electrons paves the way for novel hybrid devices that could outperform existing semiconductor electronics. In a study researchers at Linkoping University in Sweden demonstrate how to combine a commonly used semiconductor with a topological insulator. Just as the Earth spins around its own axis, so does an electron, in a clockwise or counter-clockwise direction. “Spintronics” is the name used to describe technologies that exploit both the spin and the charge of the electron. Current applications are limited, and the technology is mainly used in computer hard drives...

    Read More

    Prebiotic Atmosphere discovered on Accretion disk of Baby Star

    June 30, 2017, Categories  Astronomy/Space

    Jet, disk, and disk atmosphere in the HH 212 protostellar system. (a) A composite image for the HH 212 jet in different molecules, combining the images from the Very Large Telescope (McCaughrean et al. 2002) and ALMA (Lee et al. 2015). Orange image shows the dusty envelope+disk mapped with ALMA. (b) A zoom-in to the central dusty disk. The asterisk marks the position of the protostar. A size scale of our solar system is shown in the lower right corner for comparison. (c) Atmosphere of the accretion disk detected with ALMA. In the disk atmosphere, green is for deuterated methanol, blue for methanethiol, and red for formamide. Credit: ALMA (ESO/NAOJ/NRAO)/Lee et al.

    Jet, disk, and disk atmosphere in the HH 212 protostellar system. (a) A composite image for the HH 212 jet in different molecules, combining the images from the Very Large Telescope (McCaughrean et al. 2002) and ALMA (Lee et al. 2015). Orange image shows the dusty envelope+disk mapped with ALMA. (b) A zoom-in to the central dusty disk. The asterisk marks the position of the protostar. A size scale of our solar system is shown in the lower right corner for comparison. (c) Atmosphere of the accretion disk detected with ALMA. In the disk atmosphere, green is for deuterated methanol, blue for methanethiol, and red for formamide. Credit: ALMA (ESO/NAOJ/NRAO)/Lee et al.

    An international team has used the Atacama Large Millimeter/ submillimeter Array (ALMA) to detect complex organic molecules for...

    Read More

    Kepler has taught us that Rocky Planets are Common

    June 30, 2017, Categories  Astronomy/Space

    New planet candidates from the eighth Kepler planet candidate catalog show numerous terrestrial worlds that are near the size of Earth and within the habitable zone of their stars. The dark green span represents an optimistic estimate for habitable zone, while the brighter green a more conservative estimate. Blue circles are confirmed exoplanets, while yellow circles are new planet candidates that require follow-up observations. Credit: NASA/Ames Research Center/Wendy Stenzel

    New planet candidates from the eighth Kepler planet candidate catalog show numerous terrestrial worlds that are near the size of Earth and within the habitable zone of their stars. The dark green span represents an optimistic estimate for habitable zone, while the brighter green a more conservative estimate. Blue circles are confirmed exoplanets, while yellow circles are new planet candidates that require follow-up observations. Credit: NASA/Ames Research Center/Wendy Stenzel

    Rocky planets are probably a whole lot more common in our galaxy than astronomers previously believed—according to the latest release of Kepler Space Telescope data last week—a scenario that enhances the prospects for extraterrestrial life in nearby solar systems...

    Read More

    New Antiviral Drug Inhibits epidemic SARS, MERS and animal Coronaviruses

    June 29, 2017, Categories  Health/Medical, Biology/Biotechnology

    GS-5734 is effective against a diverse array of human and zoonotic CoV in HAE. (A) Neighbor-joining trees created with representatives from all four CoV genogroups showing the genetic similarity of CoV nsp12 (RdRp) and CoV spike glycoprotein, which mediates host tropism and entry into cells. Text color of the virus strain label corresponds to virus host species on the left. The heatmap adjacent to each neighbor-joining tree depicts percent amino acid identity (% A.A. identity) against SARS-CoV or MERS-CoV.

    GS-5734 is effective against a diverse array of human and zoonotic CoV in HAE.
    (A) Neighbor-joining trees created with representatives from all four CoV genogroups showing the genetic similarity of CoV nsp12 (RdRp) and CoV spike glycoprotein, which mediates host tropism and entry into cells. Text color of the virus strain label corresponds to virus host species on the left. The heatmap adjacent to each neighbor-joining tree depicts percent amino acid identity (% A.A. identity) against SARS-CoV or MERS-CoV.

    A new antiviral drug candidate inhibits a broad range of coronaviruses, including the SARS and MERS coronaviruses. The findings support further development of the drug candidate for treating and preventing current coronavirus infections and potential future epidemic outbreaks.

    Coronavirus...

    Read More