Results 61 to 70 of about 3,357,696 (317)
, 2015 In 1983 Felderhof, Ford and Cohen gave microscopic explanation of the famous Clausius-Mossotti formula for the dielectric constant of nonpolar dielectric.
Makuch, Karol
core +1 more source
Comparison of two-quantum-cluster approximations [PDF]
Physical Review B, 2002 corrected ...
Maier, Th. A., Jarrell, M.
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Dynamical cluster approximation study of the anisotropic two-orbital Hubbard model. [PDF]
Physical Review Letters, 2009 We investigate the properties of a two-orbital Hubbard model with unequal bandwidths on the square lattice in the framework of the dynamical cluster approximation (DCA) combined with a continuous-time quantum Monte Carlo algorithm.
Hunpyo Lee +4 more
semanticscholar +1 more source
Synthesis and physico-chemical properties of high-quality expanded graphite
Хімія, фізика та технологія поверхніThe purpose of the work is to establish the possibility of obtaining expanded graphite of high purity (carbon content more than 99.5 % wt.) from flotation-enriched graphite (carbon content 94–97 % wt.) by combining into one process intercalation of ...
Yu. V. Hrebelna +9 more
doaj +1 more source
A review of R-packages for random-intercept probit regression in small clusters
Frontiers in Applied Mathematics and Statistics, 2016 Generalized Linear Mixed Models (GLMMs) are widely used to model clustered categorical outcomes. To tackle the intractable integration over the random effects distributions, several approximation approaches have been developed for likelihood-based ...
Haeike Josephy, Tom Loeys, Yves Rosseel
doaj +1 more source
Type I error control for cluster randomized trials under varying small sample structures
BMC Medical Research Methodology, 2021 Background Linear mixed models (LMM) are a common approach to analyzing data from cluster randomized trials (CRTs). Inference on parameters can be performed via Wald tests or likelihood ratio tests (LRT), but both approaches may give incorrect Type I ...
Joshua R. Nugent, Ken P. Kleinman
doaj +1 more source
Cluster correlations in the Zel'dovich approximation [PDF]
Monthly Notices of the Royal Astronomical Society, 1994 9 pages including 6 figures, uuencoded compressed postscript file, Ref.
BORGANI, STEFANO +2 more
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Parent‐to‐Child Information Disclosure in Pediatric Oncology
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor +12 more
wiley +1 more source
Spin-glass model with essential short-range competing interactions
Condensed Matter Physics, 2005 We consider a proton-glass model with an arbitrary range of competing interactions within two-particle cluster approximation for the free energy and within symmetric replica approach.
S.I.Sorokov, R.R.Levitskii, A.S.Vdovych
doaj +1 more source
Two Quantum Cluster Approximations [PDF]
, 2003 We provide microscopic diagrammatic derivations of the Molecular Coherent Potential Approximation (MCA) and Dynamical Cluster Approximation (DCA) and show that both are Phi-derivable. The MCA (DCA) maps the lattice onto a self-consistently embedded cluster with open (periodic) boundary conditions, and therefore violates (preserves) the translational ...
Maier, Th. A. +3 more
openaire +2 more sources