The reduced density matrix is variationally optimized for the two-dimensional Hubbard model. Exploiting all symmetries present in the system, we have been able to study $6\times6$ lattices at various fillings and different values for the on-site ...
De Baerdemacker, Stijn+4 more
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Partitioning of the molecular density matrix over atoms and bonds
A double-index atomic partitioning of the molecular first-order density matrix is proposed. Contributions diagonal in the atomic indices correspond to atomic density matrices, whereas off-diagonal contributions carry information about the bonds.
Ayers, Paul W.+4 more
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Does A Short, Thick Neck Predict Obstructive Sleep Apnea?: The Role of Physical Examination in OSA Screening [PDF]
Purpose: The purpose of this study was to determine whether a short neck, alone or together with a thick neck, can predict obstructive sleep apnea (OSA).
Daskalakis, Sc.D., Constantine+4 more
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A self-consistent Hirshfeld method for the atom in the molecule based on minimization of information loss [PDF]
Ayers, Paul W.+3 more
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The Popularity Function: A Spurious Regression? The Case of Austria
In this paper we apply the unit root and cointegration methodology of modern econometric time series analysis to estimated popularity functions for the Austrian parties in government since the mid-1970s. We find no evidence for and rather strong evidence
Neck, Reinhard, Schneider, Friedrich
core
Is neck and shoulder posture, muscle activity and discomfort influenced by tablet inclination in young adults with and without neck pain? [PDF]
Bhuanantanondh P+2 more
europepmc +1 more source
Correlation analysis between neck muscles and lifestyle habits in patients with cervical instability. [PDF]
Lu G+11 more
europepmc +1 more source
Effectiveness of Telerehabilitation Exercise Programme on Disability and Pain in Patients With Chronic Non-Specific Neck Pain: Randomised Controlled Trial Assessor-Blinded. [PDF]
Barbosa JC+6 more
europepmc +1 more source
<i>Super</i>-Superselective Level VB Neck Dissection for Papillary Thyroid Cancer. [PDF]
Hartl DM+6 more
europepmc +1 more source
Development and validation of heat resistant rolling and deformation absorbing nozzle necks for friction and reaction force reduction. [PDF]
Lee YG, Jang MS.
europepmc +1 more source