This thesis examines the evolution of Internet based knowledge networks (e-knowledge networks) in the domain of sustainable development. The objective of this thesis is to use an engineering systems approach to understand knowledge networks, identify the barriers to their sustainability…

La historia evolutiva de los microorganismos se remonta a más de 3500 millones de años y una parte importante de ésta ha ocurrido en el
medio marino. Desde entonces, los microorganismos constituyen un componente esencial de las redes tróficas de…

Signature schemes are fundamental cryptographic primitives, useful as a stand-alone application, and as a building block in the design of secure protocols and other cryptographic objects. In this thesis, we study both the uses that signature schemes find in protocols,…

The state of business in the U.S. automobile industry is such that competition is fierce, and consumers have a perplexing number of alternatives from which to choose. The final purchase decision by the consumer is where most industry experts focus…

Intelligent autonomous agents working cooperatively accomplish tasks more efficiently than single agents, as well as tasks that were infeasible for the single agent. For example, a single agent transporting a ton of blocks will need to take multiple trips, possibly…

(cont.) to variations in the way functional elements interact with verbal roots. Overall, my work not only contributes to our understanding of how events are syntactically represented, but also explicates interactions at the syntax-semantics interface, clarifying the relationship between surface…

El presente estudio de factibilidad tiene como objetivo principal el mostrar
el potencial económico que tiene el sector agrícola en el Ecuador enfocado
en la exportación de productos no tradicionales como es el caso de la piña.
La piña, como…

A knowledge of the shape of the cornea is of major importance for the planning and monitoring of surgery, and for the correct diagnosis of corneal diseases. Many authors have studied the geometry of the second corneal surface in the…

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