Results 51 to 60 of about 42,944 (246)

The comparison of oral health and xerostomia between hospitalized patients with schizophrenia and normal individuals [PDF]

open access: yesمجله پزشکی دانشگاه علوم پزشکی تبریز, 2021
Background: Schizophrenia is a psychiatric illness characterized by negative symptoms (apathy, social withdrawal, lack of motivation) and cognitive deficits, while impairment in self-care, grooming, and oral health is also noted.
Ali Ebrahimi   +5 more
doaj   +1 more source

Consistent LDA'+DMFT approach to electronic structure of transition metal oxides: charge transfer insulators and correlated metals

open access: yes, 2012
We discuss the recently proposed LDA'+DMFT approach providing consistent parameter free treatment of the so called double counting problem arising within the LDA+DMFT hybrid computational method for realistic strongly correlated materials.
A I Lichtenstein   +45 more
core   +1 more source

Evaluation of Oral and Dental Health among 12 Year-Old Students in Jolfa, East Azerbaijan [PDF]

open access: yesTaṣvīr-i salāmat, 2017
Background and Objectives: Twelve year-old is selected as the global indicator of age group to compare and monitor oral diseases at the international level.
Safooreh Esmaeilzadeh   +4 more
doaj  

Generalized dynamical mean-field theory in physics of strongly correlated systems

open access: yes, 2011
This review is devoted to generalization of dynamical mean-field theory (DMFT) for strongly correlated electronic systems towards the account of different types of additional interactions, necessary for correct physical description of many experimentally
Kuchinskii, E. Z.   +2 more
core   +1 more source

Orbital Selective Pressure-Driven Metal-Insulator Transition in FeO from Dynamical Mean-Field Theory [PDF]

open access: yes, 2010
In this Letter we report the first LDA+DMFT (method combining Local Density Approximation with Dynamical Mean-Field Theory) results of magnetic and spectral properties calculation for paramagnetic phases of FeO at ambient and high pressures (HP).
A. O. Shorikov   +5 more
core   +2 more sources

Dental health status of adult population in Yemen (Thamar City) [PDF]

open access: yesAl-Rafidain Dental Journal, 2006
Aims: To evaluate the oral health status (dental caries, periodontal disease and treatment needs) in Yemenis adult individuals. Material and Methods: The sample included 471 individuals, age ranging between 20–59 years of both sexes using sharp dental ...
Faraed D Salman   +2 more
doaj   +1 more source

Two-site dynamical mean-field theory

open access: yes, 2001
It is shown that a minimum realization of the dynamical mean-field theory (DMFT) can be achieved by mapping a correlated lattice model onto an impurity model in which the impurity is coupled to an uncorrelated bath that consists of a single site only ...
A. Georges   +42 more
core   +1 more source

Practical consequences of the Luttinger-Ward functional multivaluedness for cluster DMFT methods [PDF]

open access: yes, 2017
The Luttinger-Ward functional (LWF) has been a starting point for conserving approximations in many-body physics for 50 years. The recent discoveries of its multivaluedness and the associated divergence of the two-particle irreducible vertex function ...
J. Vučičević   +3 more
semanticscholar   +1 more source

LDA+DMFT approach to ordering phenomena and the structural stability of correlated materials [PDF]

open access: yesThe European Physical Journal Special Topics, 2017
Materials with correlated electrons often respond very strongly to external or internal influences, leading to instabilities and states of matter with broken symmetry.
J. Kuneš   +5 more
semanticscholar   +1 more source

DMFT+Σ approach to disordered hubbard model [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2016
We briefly review the generalized dynamical mean-field theory DMFT+Sigma treatment of both repulsive and attractive disordered Hubbard models. We examine the general problem of metal-insulator transition and the phase diagram in repulsive case, as well as BCS-BEC crossover region of attractive model, demonstrating certain universality of single ...
Kuchinskii, E. Z., Sadovskii, M. V.
openaire   +2 more sources

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