UC Davis study finds that negative chat has a much longer tail and stronger snowball effect than positive chat
By Karen Nikos-Rose
We all know that those angry rants on social media can come back to hurt you—and sooner than you think. “Good,” positive chat resonates for a few seconds, generally, but negative chat, even in a chat room where exchanges happen more immediately than on Facebook or Twitter, persists for many minutes, new UC Davis research suggests.
Cognitive scientist Seth Frey used millions of chat room messages to study how positive and negative messages reflected back to their senders.
The U.S. Department of Energy recently announced $218 million in new grants for “Quantum Information Science” and researchers with the Center for Quantum Mathematics and Physics (QMAP) at UC Davis are among the recipients.
The QMAP initiative at UC Davis is aimed at fundamental research in theoretical and mathematical physics.
Professors Veronika Hubeny and Mukund Rangamani were awarded $348,000 over two years for work on “Entanglement in String Theory and the Emergence of Geometry.” They will explore connections between the nature of spacetime, quantum entanglement and string theory. Entanglement, famously described by Einstein as “spooky action at a distance,” is a phenomenon in quantum physics where the properties of pairs of particles are correlated even when they are widely separated.
Full post: Grants for Quantum Information Science
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By Andre Salles
The largest liquid-argon neutrino detector in the world has just recorded its first particle tracks, signaling the start of a new chapter in the story of the international Deep Underground Neutrino Experiment (DUNE).
The top of the steel cage for one of the two ProtoDUNE detectors is hoisted into position by crane. The prototype contains 800 tons of liquid argon: the final DUNE detector will be 20 times larger. Photo: CERN
Astronomers have spotted many Earth-like worlds around other stars, but are these exoplanets really similar to our home, and could they support life? The CLEVER Planets project, including UC Davis professor Sarah Stewart, has received a $7.7 million NASA grant to explore how rocky planets like Earth acquire, sustain, and nurture the chemical conditions necessary for life.
Credit: Courtney Dressing, Harvard-Smithsonian Center for Astrophysics
Full post: How Do You Make an Earth-like Planet?
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Traumatic experiences, such as maltreatment as children, can influence how our mind and body react to stressful situations. UC Davis psychologist Paul Hastings and colleagues at the University of Washington have shown that intensive training for parents referred to Child Protective Services can improve physiological reactions to stress in their young children.
Listen: Three Minute Egghead: Parenting and Child Physiology (Soundcloud)
Training for Parents Referred to CPS Improves Toddler’s Physiological Regulation (UC Davis News)
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UC Davis scientists are taking part in a project to build the new “Frontera” supercomputer at the University of Texas at Austin. Funded by a $60 million grant from the National Science Foundation announced last week, Frontera will be the fastest computer at any U.S. university and among the most powerful in the world.
Global simulation of Earth’s mantle convection by the NSF-funded Stampede supercomputer at UT Austin. Computational Infrastructure for Geodynamics, headquartered at UC Davis, is developing software for Earth sciences that will run on the new Frontera system. [Courtesy of ICES, UT Austin]
Six years after its discovery, the Higgs boson has at last been observed decaying to fundamental particles known as bottom quarks. The finding, presented Aug. 28 at CERN by the ATLAS and CMS collaborations at the Large Hadron Collider (LHC), is consistent with the hypothesis that the all-pervading quantum field behind the Higgs boson also gives mass to the quarks. Both teams have submitted their results for publication.
The CMS detector catches a Higgs boson decaying to two bottom quarks (b) in association with a Z boson decaying to an electron (e-) and an antielectron (e+). (Image: CMS/CERN)
Digital information may appear to exist as abstract ones and zeroes, flipping effortlessly from one to another. But in fact there is a minimum amount of energy required to run any computation system, regardless of how “energy efficient” are its component parts. A recent paper from Jim Crutchfield and Alex Boyd at the UC Davis Complexity Sciences Center with Dibyendu Mandal at UC Berkeley shows that there is some inescapable friction, or “grit in the gears” between the levels of organization in an information system.
By Talia Ogliore
The Earth has been through a lot of changes in its 4.5 billion year history, including a shift to incorporating and retaining volatile compounds such as water, nitrogen and carbon from the atmosphere in the mantle before spewing them out again through volcanic eruptions.
This transport could not have begun much before 2.5 billion years ago, according to researchers at UC Davis and Washington University in St. Louis, published Aug. 9 in the journal Nature.
By Becky Oskin
From moment to moment, the brain processes millions of pieces of information. When people need to focus on a critical task, special circuits in the brain’s attention network kick in to filter the information firehose.
A new project with UC Davis neuroscientists and bioengineers from the University of Florida will explore the brain circuits that allow us to focus our attention.