1,918 research outputs found
Optimal damping algorithm for unrestricted Hartree-Fock calculations
We have developed a couple of optimal damping algorithms (ODAs) for
unrestricted Hartree-Fock (UHF) calculations of open-shell molecular systems. A
series of equations were derived for both concurrent and alternate
constructions of alpha- and beta-Fock matrices in the integral-direct
self-consistent-field (SCF) procedure. Several test calculations were performed
to check the convergence behaviors. It was shown that the concurrent algorithm
provides better performance than does the alternate one.Comment: 4 color figure
SPC18の発現は、食道癌患者において独立した予後不良因子である
広島大学(Hiroshima University)博士(医学)Doctor of Philosophy in Medical Sciencedoctora
Emergence of self-similarity in football dynamics
The multiplayer dynamics of a football game is analyzed to unveil
self-similarities in the time evolution of player and ball positioning.
Temporal fluctuations in both the team-turf boundary and the ball location are
uncovered to follow the rules of fractional Brownian motion with a Hurst
exponent of H=0.7. The persistence time below which self-similarity holds is
found to be several tens of seconds, implying a characteristic time scale that
governs far-from-equilibrium motion on a playing field.Comment: Figures 1 and 2 are blurred due to file-size restriction.
Sharply-defined images can be viewed in the final version published by
European Physical Journal
Povo versus bloco de poder: elementos para análise dialógica da identidade nacional
O objetivo deste texto é apresentar, a partir de Stuart Hall, ferramentas cognitivas capazes não só de compreender a dimensão ontológica das manifestações nacionalistas brasileiras, como também de enfocá-las segundo uma análise dialógica ou discursiva. Longe de querer fixar seu pensamento, ora delimitando-o em uma escola (Estudos Culturais), ora restringindo sua aplicação à esfera do midiático, o que se procura aqui é a possibilidade interpretativa de seus conceitos a uma abrangência de temas relacionados à questão da identidade nacional.This text aims at presenting, based on Stuart Hall, cognitive tools able not only to comprehend the ontological dimension of the Brazilian nationalist manifestations but also to focus them according to a dialogical or discursive analysis. Far from wanting to fix his thought, sometimes delimiting it in a school (Cultural Studies), sometimes restricting its application to the media sphere, what is sought here is an interpretative possibility of its concepts to a scope of themes related to the question of national identity
polarization vs. anomalies in the leptoquark models
Polarization measurements in are
useful to check consistency in new physics explanations for the and
anomalies. In this paper, we investigate the and
polarizations and focus on the new physics contributions to the fraction
of a longitudinal polarization (), which is
recently measured by the Belle collaboration , in model-independent manner and in each single leptoquark model (, and ) that can naturally explain the
anomalies. It is found that severely restricts deviation from the Standard Model (SM) prediction of
in the leptoquark models:
[0.43, 0.44], [0.42, 0.48], and [0.43, 0.47] are predicted as a range of
for the , , and leptoquark
models, respectively, where the current data of is satisfied
at level. It is also shown that the polarization observables
can much deviate from the SM predictions. The Belle II experiment, therefore,
can check such correlations between and the polarization
observables, and discriminate among the leptoquark models.Comment: 24 pages, 3 figures, 1 table; references added, version published in
JHE
Flow of Rarefied Vapour past a Liquid Sphere
This paper deals with the low Mach numbers flow of a rarefied vapour past a liquid sphere accompanied with condensation and evaporation at its surface. The linearized Bhatnager-Gross-Krook(B-G-K} equation is used for the analysis, and from it the integral equations of the density, temperature and flow velocities are derived. These integral equations are solved numerically over a wide range of the Knudsen number covering from the slip flow to the nearly free molecular flow. The drag on the sphere is also calculated and is compared with that of previous work
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