Search results for "diferencia"
showing 10 items of 164 documents
Estudio del papel de PBX1 como selector terminal de las neuronas dopaminérgicas del bulbo olfatorio
2021
Tesis doctoral 177 p, figuras y tablas.
Entre el negocio y los derechos humanos
2008
La narración femenina de la guerra y el despertar de la conciencia pacifista
2015
El trabajo es una aproximación a la contribución de la literatura femenina al movimiento pacifista en el contexto de las dos guerras mundiales. El recorrido por algunos de los textos más significativos sobre la guerra de autoras contemporáneas tratará de sacar a la luz una serie de aportaciones que pueden resultar muy valiosas para una filosofía de la paz, a pesar de no provenir en la mayor parte de los casos del campo estrictamente filosófico. La escritura femenina de este periodo, que se manifiesta a través de varios géneros literarios –ensayos, novelas, autobiografías, cartas, poemas–, ha despertado un creciente interés en los últimos años, muy en especial la literatura en lengua inglesa…
El tipo de cambio real dólar-euro y el diferencial de intereses reales
2006
This paper investigates whether threshold effects exist in the relationship between dollar-euro real exchange rate and real interest differential, over the period January 1984 to December 2004. We specify a three-regime threshold model and the results provide evidence that there is no threshold effect in the short term, but the nonlinear behaviour of real exchange rate implies threshold effect in the long term. On the other hand, the nonlinearity into the behaviour of real exchange rates can be modelled by a Band-TAR which implies a symmetric response to the real interest differential outside the bank. Finally, into the threshold band the behaviour of real exchange rate is near to follow a …
Determination of neuronal antibodies in suspected and definite Creutzfeldt-Jakob disease
2014
IMPORTANCE: Creutzfeldt-Jakob disease (CJD) and autoimmune encephalitis with antibodies against neuronal surface antigens (NSA-abs) may present with similar clinical features. Establishing the correct diagnosis has practical implications in the management of care for these patients. OBJECTIVE: To determine the frequency of NSA-abs in the cerebrospinal fluid of patients with suspected CJD and in patients with pathologically confirmed (ie, definite) CJD. DESIGN, SETTING, AND PARTICIPANTS: A mixed prospective (suspected) and retrospective (definite) CJD cohort study was conducted in a reference center for detection of NSA-abs. The population included 346 patients with suspected CJD and 49 pati…
Predicting life satisfaction in Angolan elderly: the moderating effect of gender
2014
Existe abundante investigación que ha estudiado la satisfacción vital en personas mayores y ha encontrado evidencia empírica de sus mejores predictores. Cuando se estudia la satisfacción con la vida de las personas mayores y sus predictores se hallan diferencias en función del género incluyendo, por ejemplo, las interacciones con la viudedad. En este contexto, el presente estudio se ha centrado en los siguientes objetivos: (1) poner a prueba la invarianza en función del género de una medida de satisfacción con la vida, (2) predecir la satisfacción vital usando varias variables relacionadas con el proceso de envejecimiento y (3) poner a prueba el potencial efecto moderador del género en esta…
Scheduled Relaxation Jacobi method: improvements and applications
2016
Elliptic partial differential equations (ePDEs) appear in a wide variety of areas of mathematics, physics and engineering. Typically, ePDEs must be solved numerically, which sets an ever growing demand for efficient and highly parallel algorithms to tackle their computational solution. The Scheduled Relaxation Jacobi (SRJ) is a promising class of methods, atypical for combining simplicity and efficiency, that has been recently introduced for solving linear Poisson-like ePDEs. The SRJ methodology relies on computing the appropriate parameters of a multilevel approach with the goal of minimizing the number of iterations needed to cut down the residuals below specified tolerances. The efficien…
The influence of the solvent's mass on the location of the dividing surface for a model Hamiltonian
2019
The Transition State dividing surface is a key concept, not only for the precise calculation of the rate constant of a reaction, but also for the proper prediction of product ratios. The correct location of this surface is defined by the requirement that reactive trajectories do not recross it. In the case of reactions in solution the solvent plays an important role in the location of the dividing surface. In this paper we show with the aid of a model Hamiltonian that the effective mass of the solvent can dramatically change the location of the dividing surface. Keywords: Dynamical systems, Dividing surface, Reactions in solution, 2019 MSC: 00-01, 99-00
Radial conformal motions in Minkowski space–time
1999
A study of radial conformal Killing fields (RCKF) in Minkowski space-time is carried out, which leads to their classification into three disjointed classes. Their integral curves are straight or hyperbolic lines admitting orthogonal surfaces of constant curvature, whose sign is related to the causal character of the field. Otherwise, the kinematic properties of the timelike RCKF are given and their applications in kinematic cosmology is discussed.
Generalized distance-squared mappings of the plane into the plane
2016
Abstract We define generalized distance-squared mappings, and we concentrate on the plane to plane case. We classify generalized distance-squared mappings of the plane into the plane in a recognizable way.