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Assessing mammal responses to perturbations in temperate aridlands of Argentina
(Academic Press Ltd - Elsevier Science Ltd, 2003-12)
Loss of species richness and reduced abundance have been the main responses to perturbations of small- and medium-sized mammals in arid and semi-arid areas. Nonetheless, some mammal species whose habitat requirements are ...
Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
(Pergamon-Elsevier Science Ltd, 2019-02)
A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and ...
Perturbation theory by the moment method and point-group symmetry
(Springer, 2015-01)
We analyze earlier applications of perturbation theory by the moment method (also called inner product method) to anharmonic oscillators. For concreteness we focus on two-dimensional models with symmetry (Formula presented.) ...
Perturbation theory for operational quantum non-Markovianity
(American Physical Society, 2020-08-19)
The definition of memory in operational approaches to quantum non-Markovianity depends on the statistical properties of different sets of outcomes related to successive measurement processes performed over the system of ...
Perturbative generation of a strange-quark asymmetry in the nucleon
(American Physical Society, 2004-10)
The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange ...
Two-dimensional hydrogen-like atom in a uniform magnetic field: Large-order perturbation theory
(Springer Verlag Berlín, 2018-12)
The well-known hypervirial perturbation method (HPM), based on hypervirial relations and the Hellmann-Feynman theorem, is suitable for the calculation of perturbation corrections of large order for the non-relativistic, ...
On the stability of certain perturbed systems of differential equations and the relationship with the magnitude of the perturbationSobre la estabilidad de ciertos sistemas perturbados de ecuaciones diferenciales y sus relaciones con la magnitud de la perturbación
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 2010)
Perturbation of whole-brain dynamics in silico reveals mechanistic differences between brain states
(Academic Press, 2018-04)
Human neuroimaging research has revealed that wakefulness and sleep involve very different activity patterns. Yet, it is not clear why brain states differ in their dynamical complexity, e.g. in the level of integration and ...