Two-dimensional materials gets a new theory for control of properties
A grain boundary forms when graphene growth advances past an apex on a conical bump, where the curvature resembles that on a sphere; it terminates at the foot of the bump, where curvature is saddle-like. Credit: Crespi Lab / Penn State
Renewable resource: sulfur is used, replenished to produce lipoic acid
Model of the crystal structure of the lipoyl synthase enzyme (LipA) from the bacteria Mycobacterium tuberculosis revealing the destruction of one of its iron-sulfur clusters (orange and yellow balls) to use as a sulfur source for the production of lipoic acid. New research demonstrates that the iron-sulfur cluster that is destroyed during the production of lipoic acid is replaced by an iron-sulfur carrier protein, NfuA, so that LipA can continue to produce lipoic acid. Credit: Booker laboratory, Penn State
Colonel Aaron Saguil presents a holistic approach to medical school admission
Colonel Aaron Saguil
Gravitational waves + new clues from space reveal new way to make a black hole
Artist impression of gravitational waves generated by binary neutron stars. Credit: R. Hurt, Caltech/JPL
Stone Memorial Lecture set for October 23
Michael Laub
You can see that from here: New telescope attachment allows ground-based observations of new worlds to rival those from space
A team of astronomers led by researchers at Penn State have developed beam-shaping diffusers – small pieces of etched glass that can be mounted on telescopes – that increase the quality of ground-based photometric observations. Image credit left/right: Gudmundur Stefansson; middle: Caltech/Palomar Observatory
Penn State LIGO scientists celebrate 2017 Nobel Prize in Physics
Rainer Weiss, Barry C. Barish, and Kip S. Thorne—winners of the 2017 Nobel Prize in Physics. Original illustrations: Niklas Elmehed; Photo: Lovisa Engblom.
New statistical method for evaluating reproducibility in studies of genome organization
Schematic representation of the HiCRep method. HiCRep uses two steps to accurately assess the reproducibility of data from Hi-C experiments. Step 1: Data from Hi-C experiments (represented in triangle graphs) is first smoothed in order to allow researchers to see trends in the data more clearly. Step 2: The data is stratified based on distance to account for the overabundance of nearby interactions in Hi-C data. Credit: Li Laboratory, Penn State University
New gravitational wave hits Earth -- For the first time, 3 detectors zoom in on its location
Chad Hanna demonstrates gravitational waves via ripples in water. Credit: Michelle Bixby, Penn State.
Gene associated with schizophrenia risk regulates neurodevelopment
The ZNF804A protein and ribosomal protein RPSA, co-localized in mouse nerve cells, were stained with fluorescent dyes and merged into a single image. Both are involved in the translation of proteins from RNA. A new study demonstrates the role of ZNF804A during proliferation and migration of neurons in the brain as well as its contribution to psychiatric disorders like schizophrenia.
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