This thesis proposes a miethodology for the design of man-machine interfaces by combining top-down and bottom-up processes in vision. From a computational perspective, we propose that the scientific-cognitive question of combining top-down and bottom-up knowledge is similar to the engineering…

Chapter 1. Molybdenum Dinitrogen Chemistry: Formation and Reactivity of (Ar[tBu]N)3MoN2- A collection of (Ar[tBu]N)3MoN2- compounds, supported with Na+, K+, Mg2+ and Ca2+ have been prepared through a variety of synthetic routes. In several experiments, N2 was replaced with other small…

Las Escuelas de Campo (EC) son un método de extensión participativo que
permite desarrollar capacidades analíticas, pensamiento crítico y, creatividad. La investigación se realizó en la región Mazateca de Oaxaca, la
cual se caracteriza por su alto rezago tecnológico, porque…

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

Aquesta investigació s’emmarca en el context del projecte de recerca per a la “Promoció exterior de la llengua, la literatura i la cultura valenciana a través de diferents programes d'actuacions” [IVITRA-UA/Acadèmia Valenciana de la Llengua (ACADEMIAVALENCIANA2-05N)]. A més, també se…

Most neural network learning algorithms cannot use knowledge other than what is provided in the training data. Initialized using random weights, they cannot use prior knowledge such as knowledge stored in previously trained networks. This manuscript thesis addresses this problem.…

Sometimes, the presence of objects difficult the observation of other neighboring objects. This is because
part of the surface of an object occludes partially the surface of another, increasing the complexitiy in the
recognition process. Therefore, the information which is…

This work is part of the results of the research of the Laboratory of Invertebrates of the Facultad de Ciencias UNAM, partially financed by the Comision Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) developing during 2006-2007. The…

Background: In the past years, several studies begun to unravel the structure, dynamical properties, and evolution of transcriptional regulatory networks. However, even those comparative studies that focus on a group of closely related organisms are limited by the rather scarce…

Cultural resources like traditional medicinal knowledge need to be recognized in their role tied to important regional practices in Zimbabwe. This is especially as a nexus of legal definitions for biological, intellectual and cultural resources will inform a National Sui…