Aprendamos sobre sexo : sexualidad y reproducción humanas.

Este trabajo obtuvo la primera mención especial de la modalidad A de los Premios Joaquín Sama 2005. El enlace html es el mismo para los documentos con códigos 00920063000155, 00920063000156 y 00920063000157

Otras actividades complementarias para mejorar la docencia universitaria: elaboración y utilización de blogs.

Resumen tomado de la publicación

Percepción de futuros maestros sobre el potencial de las TIC en la educación : de las expectativas a la realidad

Resumen tomado de la publicación.

Estudio de metabolitos secundarios de especies endémicas canarias de los géneros tolpis y pulicaria. Aplicaciones quimiotaxonómicas de actividad biológica = Study of secondary metabolites of endemic canary species from the genera Tolpis and Pulicaria: chemotaxomonic and biological activity applications

Doctorado en Ciencias Químicas

Estudio químico y actividad citotóxica de compuestos de Pulicaria burchardii y Pulicaria canariensis ssp. lanata

[ES]El género Pulicaria (Asteraceae: Inuleae; Inulinae) está representado en las Islas Canarias por tres especies localizadas en las islas más orientales de las que dos son endémicas P. burchardii Hutch y P. canariensis Bolle, que a su vez presenta dos subespecies P. canariensis ssp. canariensis, previamente estudiada por nuestro grupo [1], y P. canariensis ssp. lanata [2]. En el presente trabajo damos a conocer los resultados obtenidos del estudio químico de los extractos etanólicos de las partes aéreas de P. burchardii A. Hans. & Sund. ssp. burchardii y de P. canariensis ssp. lanata.

Estudio de la respuesta inmune frente a Haemonchus Contortus en dos razas ovinas canarias

Eliminadas las páginas en blanco

Secondary metabolites from two species of ·Tolpis and their biological activities

[EN] Phytochemical research of two Tolpis species, T. proustii and T. lagopoda, led to the isolation of three new compounds: 30-chloro-3beta-acetoxy-22alfa-hydroxyl-20(21)- taraxastene (1), 3beta,22alfa-diacetoxy-30-ethoxy-20(21)-taraxastene (2) and 3beta,28-dihydroxy- 11alfa-hydroperoxy-12-ursene (3). The structures of the new compounds were elucidated by means of extensive IR, NMR, and MS data and by comparison of data reported in the literature. The in vitro antioxidant activities of the extracts were assessed by the DPPH and ABTS scavenging methods. The cytotoxicity of several known compounds and its derivatives was also assessed against human myeloid leukemia K-562 and K-562/ADR cell lines.

Interacción parásito-hospedador entre nematodos gastrointestinales y razas ovinas canarias : papel de los linfocitos T γδ y los eosinófilos

Programa de doctorado: Sanidad animal

Mathematical model for manoeuvrability of a riverine support patrol vessel with a pump-jet propulsion system

A study on the manoeuvrability of a riverine support patrol vessel is made to derive a mathematical model and simulate maneuvers with this ship. The vessel is mainly characterized by both its wide-beam and the unconventional propulsion system, that is, a pump-jet type azimuthal propulsion. By processing experimental data and the ship characteristics with diverse formulae to find the proper hydrodynamic coefficients and propulsion forces, a system of three differential equations is completed and tuned to carry out simulations of the turning test. The simulation is able to accept variable speed, jet angle and water depth as input parameters and its output consists of time series of the state variables and a plot of the simulated path and heading of the ship during the maneuver. Thanks to the data of full-scale trials previously performed with the studied vessel, a process of validation was made, which shows a good fit between simulated and full-scale experimental results, especially on the turning diameter

A study on the shallow water effect on a ship's pivot point

Information on the pivot point of a turning ship is collected, taking into account practical notes and manuals on ship maneuvering as well as experimental data and simulated results which all together reveal a consistent behavior when varying water depth or some ship particulars. Results from the studies already carried out on the Riverine Support Patrol Vessel (RSPV) of the Colombian Navy are included in this one, in order to estimate the pivot point’s position and to contrast those results with theory and available empirical observations. Linear manoeuvrability theory is tested and its results show poor approximation with respect to the kinematic equations. As to the depth variation effect, by means of fullscale experiments it is confirmed that the pivot point’s position, when going to shallow water, always varies in the same way, proving to be coherent with the available information on this phenomenon.