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Sánchez-Zarza, S.C. ; Mezones-Holguin, E. ; López-Baena, M.T. ; Soto-Becerra, P. ; Pérez-López, F.R. ; Gavilanes, A.W.D. ; Chedraui, P. | Taylor and Francis Ltd. | 2020-12-14T16:10:10ZBackground: Depressive symptoms may affect female mid-life sexuality, whereas sexual problems tend to aggravate depression. Despite this, data assessing this association drawn from mid-aged Paraguayan women are scarce. Objective: This study aime[...]texto impreso
Serna Galán, Julio ; Martínez Herrero, Rosario ; Mejías Arias, Pedro Miguel | Taylor and Francis Ltd. | 1992-03The quality behaviour of Gaussian Schell-model fields propagating through general (non-orthogonal) ABCD optical systems has been characterized by introducing a number of parameters. Such parameters have been given in terms of the Wigner distribu[...]texto impreso
In this work we present a general formulation of the corrections to the Raman-Nath approximation for the diffracted field by a volume hologram, based on integral equations. An approximate analytic expression is given for the first correction. Nu[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa ; Davis, Jeffrey A. | Taylor and Francis Ltd. | 2005-12-15The paper reports studies, both experimental and using numerical simulation, of the Fresnel diffraction by recently introduced fractal zone plates associated with triadic and quintic Cantor sets. The evolution of the intensity patterns at planes[...]texto impreso
Valdivia, M. ; Soto-Becerra, P. ; Laguna-Barraza, R. ; Rojas, P.A. ; Reyes-Mandujano, I. ; Gonzáles-Reyes, P. ; Temoche, H. ; Timoteo, O.S. ; Lugo-Martinez, G. ; Calzada-Mendoza, C.C. ; Mezones-Holguin, E. | Taylor and Francis Ltd. | 2020-12-14T16:10:22ZObjective: To evaluate the effect of a herbal preparation containing glucosinolates, phytosterols and citrus flavonoids (supplement) on body weight and metabolic parameters usually impaired by menopause. Methods: A pre-clinical experimental stud[...]texto impreso
We study monomode slab and cylindrical waveguides, in which the dielectric permittivity l has both a graded spatial variation and finite discontinuities at the boundaries. New integral equations for the H-type propagation mode in the slab and fo[...]texto impreso
In this work we propose a robust fringe demodulation technique applied to the analysis of a single isochromatics fringe pattern produced in photoelasticity. The method used is a regularized phase tracking algorithm with a new sequential scanning[...]texto impreso
We present a general formulation for multiple scattering of classical electromagnetic waves by volume gratings. Fujiwara's electron multiple scattering theory is modified and extended to the case of both, the transmission and the reflection geom[...]texto impreso
Neutron waveguides in neutron optics: Green's functions formalism with Dirichlet boundary conditions
Molina de la Peña, Ignacio ; Calvo Padilla, María Luisa ; Álvarez Estrada, Ramón F. | Taylor and Francis Ltd. | 2020-06-06In neutron optics, we analyse the propagation of slow (thermal) neutrons along a semi-infinite waveguide limited by a large repulsive potential (reminding the propagation of light along an optical fibre). We set an ideal case of a straight empty[...]texto impreso
We study anisotropic cylindrical dielectric waveguides under the following conditions: (1) their cross section ? has arbitrary shape; (2) the dielectric permittivity tensor ? has discontinuities at the boundaries, as well as a graded spatial var[...]texto impreso
Quiroga Mellado, Juan Antonio ; Villa, J. ; Gómez Pedrero, José Antonio | Taylor and Francis Ltd. | 2002-11A sinusoidal least-squares fitting algorithm (SLSF) is applied to temporal evaluation of fringe patterns. The least-squares fitting of a sine function directly with the irradiance fluctuations due to a linear sensitivity variation of the optical[...]texto impreso
El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. Mining is an important industry in Peru, but local communities where mining takes place do not p[...]texto impreso
Connolly, Mark P. ; Haitsma, Gertruud ; Hernandez, Adrian V. ; Vidal, Jose E. | Taylor and Francis Ltd. | 2018-01-04T15:03:59ZA recent systematic literature and meta-analysis reported relative efficacy of trimethoprim-sulfamethoxazole (TMP-SMX) for the treatment of toxoplasmic encephalitis (TE) in HIV-infected adults. Here, we estimated relapse rates during secondary p[...]texto impreso
Quiroga Mellado, Juan Antonio ; Gómez Pedrero, José Antonio ; Servín Guirado, Manuel | Taylor and Francis Ltd. | 2004-01-10A method for temporal evaluation of fringe patterns with a spatial carrier is presented. The proposed technique consists in the recording of the temporal irradiance fluctuations obtained when a linear variation of the set-up sensitivity is intro[...]texto impreso
A new method is presented for the temporal evaluation of fringe patterns with spatial carrier. The proposed technique involves recording the irradiance fluctuations obtained when a linear variation of the set-up sensitivity is introduced. In thi[...]
