Equine unsaturated estrogens are the main components of brand formulations indicated for hormonal replacement therapy in both hypogonadic and postmenopausal women. These hormones are produced by the fetoplacental unit during equine gestation. A method is described for the quantitative determination of equilenin (EL), equilin (EQ), 17alpha-dihydroequilin (17dEQ), and estrone (El) in the plasma o...

Electrolaryngeal (EL) speech produced by a laryngectomee using an electrolarynx to mechanically generate artificial excitation sounds severely suffers from unnatural fundamental frequency (F0) patterns caused by monotonic excitation sounds. To address this issue, we have previously proposed EL speech enhancement systems using statistical F0 pattern prediction methods based on a Gaussian Mixture...

This article presents numerical studies on semi-active seismic response control of structures equipped with Magneto-Rheological (MR) dampers. A multi-layer artificial neural network (ANN) was employed to mitigate the influence of time delay, This ANN was trained using data from the El-Centro earthquake. The inputs of ANN are the seismic responses of the structure in the current step, and the ou...

This paper discuss about the results from the evaluation of the motivation, user profile and level of satisfaction in the workflow using 3D augmented visualization of complex models in educational environments. The study shows the results of different experiments conducted with first and second year students from Architecture and Science and Construction Technologies (Old Spanish degree of Buil...

Studies of female waterfowl nutrient reserve use during egg production require a precise understanding of ovarian follicle dynamics to correctly interpret breeding status, and, therefore, derive proper inference. Concerns over numerical declines of North American scaup have increased the need to better understand the role of female condition in reproductive performance. We quantified ovarian fo...

El problema a resolver es mantener siempre en posición vertical la masa junto con la varilla, tratando de mover el carro para lograrlo. El péndulo esta sostenido por una chumacera, encima de un carro que a su vez tiene movimiento por medio de un sistema de deslizamiento dinámico, por lo cual éste puede adoptar dos tipos de direcciones sobre el plano x, y que afecta directamente con el ángulo te...

Título: Uso de la tecnología de comunicación para el trabajo en casa durante el tiempo fuera del trabajo y el conflicto trabajo-familia: los roles del apoyo familiar y el desapego psicológico. Resumen: Este estudio analiza la influencia del uso de las tecnologías de la comunicación para el trabajo en casa durante el tiempo fuera del trabajo en el conflicto trabajo-familia. Nuestro análisis se b...

In this paper, we present a mixed spline/spectral method to solve Volterra delay-integro-differential equations (VDIDEs). This method is based on generating the sextic spline collocation methods in all subintervals. The approximation of the integration in these subintervals, can be calculated by the El-Gendi method. Convergence results of the present method are presented. Numerical results are ...