9 research outputs found
Petascale computations for Large-scale Atomic and Molecular collisions
Petaflop architectures are currently being utilized efficiently to perform
large scale computations in Atomic, Molecular and Optical Collisions. We solve
the Schroedinger or Dirac equation for the appropriate collision problem using
the R-matrix or R-matrix with pseudo-states approach. We briefly outline the
parallel methodology used and implemented for the current suite of Breit-Pauli
and DARC codes. Various examples are shown of our theoretical results compared
with those obtained from Synchrotron Radiation facilities and from Satellite
observations. We also indicate future directions and implementation of the
R-matrix codes on emerging GPU architectures.Comment: 14 pages, 5 figures, 3 tables, Chapter in: Workshop on Sustained
Simulated Performance 2013, Published by Springer, 2014, edited by Michael
Resch, Yevgeniya Kovalenko, Eric Focht, Wolfgang Bez and Hiroaki Kobaysah
PAMOP: Petascale atomic, molecular and optical collision calculations
Petaflop architectures are currently being utilized efficiently to perform
large scale computations in Atomic, Molecular and Optical Collisions. We solve
the Schr\"odinger or Dirac equation for the appropriate collision problem using
the R-matrix or R-matrix with pseudo-states approach. We briefly outline the
parallel methodology used and implemented for the current suite of Breit-Pauli
and DARC codes. In this report, various examples are shown from our theoretical
results compared with experimental results obtained from Synchrotron Radiation
facilities where the Cray architecture at HLRS is playing an integral part in
our computational projects.Comment: 16 pages, 6 figures, Chapter 4, in High Performance Computing in
Science and Engineering 2014, edited by W. E. Nagel, D. B. Kroner, and M.
Reich (Springer, New York and Berlin, 2014).
http://www.springer.com/mathematics/computational+science+%26+engineering/book/978-3-319-10809-
Calculation of cross sections of simultaneous ionization in ion-atom collisions by the generalized geometrical model
Electron loss from 0.74- and 1.4-MeV/u low-charge-state argon and xenon ions colliding with neon, nitrogen, and argon
Recent advances in psychoneuroimmunology: inflammation in psychiatric disorders
Psychiatric disorders are common and complex and their precise biological underpinnings remain elusive. Multiple epidemiological, molecular, genetic and gene expression studies suggest that immune system dysfunction may contribute to the risk for developing psychiatric disorders including schizophrenia, bipolar disorder, and major depressive disorder. However, the precise mechanisms by which inflammation-related events confer such risk are unclear. In this review, we examine the peripheral and central evidence for inflammation in psychiatric disorders and the potential molecular mechanisms implicated including inhibition of neurogenesis, apoptosis, the HPA-axis, the role of brain-derived neurotrophic factor and the interplay between the glutamatergic, dopaminergic and serotonergic neurotransmitter systems