Recent Comments

    Category Uncategorized

    Dawn of the cosmos: Seeing galaxies that appeared soon after the Big Bang

    July 27, 2017, Categories  Uncategorized

    Dawn of the cosmos Seeing galaxies that appeared soon after the Big Bang — Sci_2017-07-26_19-55-06

    Arizona State University astronomers Sangeeta Malhotra and James Rhoads, working with international teams in Chile and China, have discovered 23 young galaxies, seen as they were 800 million years after the Big Bang. Long ago, about 300,000 years after the beginning of the universe (the Big Bang), the universe was dark. There were no stars or galaxies, and the universe was filled with neutral hydrogen gas. In the next half billion years or so the first galaxies and stars appeared. Their energetic radiation ionized their surroundings, illuminating and transforming the universe.
     
    This dramatic transformation, known as re-ionization, occurred sometime in the interval between 300 mill...
    Read More

    Gamma-ray Burst captured in unprecedented detail

    July 27, 2017, Categories  Uncategorized

    This image shows the most common type of gamma-ray burst, thought to occur when a massive star collapses, forms a black hole, and blasts particle jets outward at nearly the speed of light. An international team led by University of Maryland astronomers has constructed a detailed description of a similar gamma-ray burst event, named GRB160625B. Their analysis has revealed key details about the initial 'prompt' phase of gamma-ray bursts and the evolution of the large jets of matter and energy that form as a result. Credit: NASA's Goddard Space Flight Center

    This image shows the most common type of gamma-ray burst, thought to occur when a massive star collapses, forms a black hole, and blasts particle jets outward at nearly the speed of light. An international team led by University of Maryland astronomers has constructed a detailed description of a similar gamma-ray burst event, named GRB160625B. Their analysis has revealed key details about the initial ‘prompt’ phase of gamma-ray bursts and the evolution of the large jets of matter and energy that form as a result. Credit: NASA’s Goddard Space Flight Center

     
    Data from multiple telescopes used to address long-standing questions about the universe’s most powerful explosions. Gamma-ray bursts are among the most energetic and explosive events in the universe...
    Read More

    Plant reveals Anti-Alzheimer’s compounds

    June 21, 2017, Categories  Biology/Biotechnology, Health/Medical, Uncategorized

    A Systematic Strategy for Discovering a Therapeutic Drug for Alzheimer’s Disease and Its Target Molecule. Frontiers in Pharmacology, 2017; 8 DOI: 10.3389/fphar.2017.00340

    A Systematic Strategy for Discovering a Therapeutic Drug for Alzheimer’s Disease and Its Target Molecule. Frontiers in Pharmacology, 2017; 8 DOI: 10.3389/fphar.2017.00340

    Japanese scientists have developed a method to isolate and identify active compounds in plant medicines, which accurately accounts for drug behavior in the body. Using the technique, they have identified several active compounds from Drynaria Rhizome, a traditional plant medicine, which improve memory and reduce disease characteristics in a mouse model of Alzheimer’s disease.

    Traditional plant medicines have been used by humans for a long time, and these therapies are still popular in many countries...

    Read More

    Physicists find a way to Control Charged Molecules – with Quantum Logic

    May 10, 2017, Categories  Uncategorized

    Preparation and coherent manipulation of pure quantum states of a single molecular ion. Nature 545, 203–207 (11 May 2017) doi:10.1038 (link is external)/nature22338. Chemistry, Metrology, Ato Credit: N. Hanacek/NIST

    Preparation and coherent manipulation of pure quantum states of a single molecular ion. Nature 545, 203–207 (11 May 2017) doi:10.1038 (link is external)/nature22338. Chemistry, Metrology, AtoCredit: N. Hanacek/NIST

    NIST physicists have solved the seemingly intractable puzzle of how to control the quantum properties of individual charged molecules, or molecular ions. The solution is to use the same kind of “quantum logic” that drives an experimental NIST atomic clock. The new technique achieves an elusive goal, controlling molecules as effectively as laser cooling and other techniques can control atoms. Quantum control of atoms has revolutionized atomic physics, leading to applications such as atomic clocks...

    Read More