Results 31 to 40 of about 22,523 (167)
Metabolites, 2019 Cerebral micro-dialysis allows continuous sampling of extracellular metabolites, including glucose, lactate and pyruvate. Transient ischemic events cause a rapid drop in glucose and a rise in lactate levels. Following such events, the lactate/pyruvate (L/
Jesper F. Havelund +7 more
doaj +1 more source
Integrated Information as a Metric for Group Interaction: Analyzing Human and Computer Groups Using a Technique Developed to Measure Consciousness [PDF]
Engel, D., Malone, T. W. (2018) Integrated information as a metric
for group interaction. PLOS ONE 13(10): e0205335.
https://doi.org/10.1371/journal.pone.0205335, 2017 Researchers in many disciplines have previously used a variety of mathematical techniques for analyzing group interactions. Here we use a new metric for this purpose, called 'integrated information' or 'phi.' Phi was originally developed by neuroscientists as a measure of consciousness in brains, but it captures, in a single mathematical quantity, two ...
arxiv +1 more source
Reconstruction-classification method for quantitative photoacoustic tomography [PDF]
, 2015 We propose a combined reconstruction-classification method for simultaneously recovering absorption and scattering in turbid media from images of absorbed optical energy. This method exploits knowledge that optical parameters are determined by a limited number of classes to iteratively improve their estimate.
arxiv +1 more source
The Ultra-High-Energy Source MGRO J1908+06 [PDF]
arXiv, 2021 The TeV gamma-ray source MGRO J1908+06 is one of the highest-energy sources known, with observed emission by the High Altitude Water Cherenkov (HAWC) Observatory extending well past 100 TeV. The source exhibits both energy-dependent morphology and a spatially-dependent spectral index.
arxiv
Overcoming the Memory Bottleneck in Auxiliary Field Quantum Monte Carlo Simulations with Interpolative Separable Density Fitting [PDF]
, 2018 We investigate the use of interpolative separable density fitting (ISDF) as a means to reduce the memory bottleneck in auxiliary field quantum Monte Carlo (AFQMC) simulations of real materials in Gaussian basis sets. We find that ISDF can reduce the memory scaling of AFQMC simulations from $\mathcal{O}(M^4)$ to $\mathcal{O}(M^2)$.
arxiv +1 more source
Accelerating Auxiliary-Field Quantum Monte Carlo Simulations of Solids with Graphical Processing Unit [PDF]
J. Chem. Theory Comput. 16, 4286-4297 (2020), 2020 We outline how auxiliary-field quantum Monte Carlo (AFQMC) can leverage graphical processing units (GPUs) to accelerate the simulation of solid state sytems. By exploiting conservation of crystal momentum in the one- and two-electron integrals we show how to efficiently formulate the algorithm to best utilize current GPU architectures.
arxiv +1 more source
Electrochemical Perspective on Hematite–Malonate Interactions
Colloids and Interfaces, 2021 Organic matter (OM) interactions with minerals are essential in OM preservation against decomposition in the environment. Here, by combining potentiometric and electrophoretic measurements, we probed the mode of coordination and the role of pH-dependent ...
Karolina Kędra +6 more
doaj +1 more source
Operator Regularization and Large Noncommutative Chern Simons Theory [PDF]
Can.J.Phys. 82 (2004) 403-409, 2002 We examine noncommutative Chern Simons theory using operator regularization. Both the zeta-function and the eta-function are needed to determine one loop effects. The contributions to these functions coming from the two point function is evaluated.
arxiv +1 more source
Mesomorphic properties of cyanobiphenyl dimers with a central malonate unit
, 2018 A series of cyanobiphenyl dimers attached via alkoxy spacers to a central malonate were prepared, and the mesomorphic behaviour was studied by differential scanning calorimetry (DSC), polarised optical microscopy and X-ray diffraction (Wide-angle X-ray ...
M. Grunwald +7 more
semanticscholar +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2016 The asymmetric unit of the title polymer, [Co2(C3H3O4)2Cl2(H2O)2]n, comprises one CoII atom, one water molecule, one singly deprotonated malonic acid molecule (HMal−; systematic name 2-carboxyacetate) and one Cl− anion.
Yasmina Bouaoud +5 more
doaj +1 more source