Now showing items 1663-1682 of 1771
Güell Serra, Mireia (Date of defense: 2009-07-30)
La presència de la química teòrica i computacional està augmentant en quasi tots els camps de la recerca en química. Els càlculs teòrics poden ajudar a entendre millor l'estructura, les propietats i la reactivitat de ...
Osuna Oliveras, Sílvia (Date of defense: 2010-03-26)
Des del descobriment del buckminster ful.lerè el 1985, s'ha despertat un interés enorme per entendre la reactivitat química així com les propietats d'aquests compostos. La funcionalització exoèdrica del ful.lerè més abundant, ...
Jiménez Halla, José Óscar Carlos (Date of defense: 2009-10-16)
En aquesta tesi s'han estudiat mecanismes de reaccions de cicloanulació en carbens de Fischer a través de mètodes teòrics, concretament fent servir el nivell de teoria B3LYP/(Wachters' basis / 6-31G**). Els alcoxi- i amino ...
Tussupbayev, Samat (Date of defense: 2009-02-26)
Esta tesis presenta un estudio computacional de los sistemas con hidruros puente. En la primera parte se estudia la química de complejos de dirutenio con cuatro hidruros puente. Esto incluye las siguientes reacciones: el ...
Acuña-Parés, Ferran (Date of defense: 2016-07-20)
One of the major current scientific goals is the development of renewable energy sources. An effective alternative to fossil fuels consists in the conversion of the sunlight energy into chemical fuels. The molecular hydrogen ...
Cabezas Llobet, Núria (Date of defense: 2019-02-28)
Huntington's disease (MH) is a progressive neurodegenerative disorder characterized by a motor dysfunction, cognitive impairment, and psychiatric symptoms. At neuropathological level, it has been described that cognitive ...
Navarro-López, Carolina (Date of defense: 2022-11-14)
Compositional data analysis is a recently applied methodology with great potential for expansion in multiple scientific disciplines.This doctoral thesis aims to help the dissemination and transfer of knowledge about the ...
Correa Pinzón, John Enrique (Date of defense: 2022-11-18)
This thesis studies the effects of hard skills and soft skills and risk attitudes on the likelihood of starting a company in the US. Hard skills are those skills that can be learned and trained. They are cognitive in nature. ...
Llaneza Hesse, Catalina (Date of defense: 2023-12-19)
This dissertation evaluates the pandemic's impact on three coexisting urban rental markets: traditional long-term rentals (LTR), short-term rentals (STR) primarily catering to tourists, and seasonal month-by-month rentals ...
Llanos Rodríguez, David Alejandro (Date of defense: 2008-10-17)
El desalineamiento temporal es la incorrespondencia de dos señales debido a una distorsión en el eje temporal. La Detección y Diagnóstico de Fallas (Fault Detection and Diagnosis-FDD) permite la detección, el diagnóstico ...
Roure Garcia, Ferran (Date of defense: 2017-03-08)
In this thesis, we did an in-depth review of the state of the art of 3D registration, evaluating the most popular methods. Given the lack of standardization in the literature, we also proposed a nomenclature and a ...
Puig Parnau, Maria (Date of defense: 2020-03-06)
This dissertation is built on the basis that during the first decades of the twenty-first century, it has appeared a diverse corpus of Catalan prose-works characterized by a new representation of both the imaginary and the ...
Ferrer Rosell, Berta (Date of defense: 2014-05-27)
This thesis compares the behaviour of tourists arriving to Spain by low cost airlines or by legacy airlines, in terms of length of stay and travel budget allocation. It also segments low cost users according to travel ...
Blasco Franch, Daniel (Date of defense: 2014-01-27)
Debates on the creation and management of tourism destinations have increased during the last decades. This dissertation endeavours to contribute to the literature on tourism destinations planning and governance, with ...
Díaz Sauceda, Judit (Date of defense: 2016-07-13)
Tourists are crossing borders naturally when consuming an area. Therefore, cross-border tourism studies are gaining relevance. A qualitative analysis showed the lack of research on cross-border tourism from the demand side. ...
Quintanas Corominas, Adrià (Date of defense: 2019-10-11)
his doctoral thesis aims at developing and implementing a computational framework for performing virtual testing of composite structures using a High-Performance Computing (HPC) environment. In this sense, this thesis ...
Montserrat Royuela, Albert (Date of defense: 2015-07-03)
In combined sewer systems (CSS) wastewater and stormwater flow through the same pipes. During severe rain episodes, the excess combined flow of untreated wastewater and stormwater is released out from the system through ...
Bouzguenda, Islam (Date of defense: 2021-02-01)
This thesis contributes to the current debate on the relationship between the participation of digital citizens in urban planning and social sustainability within the framework of the smart city concept. Recent studies ...
Boada Cahueñas, Ellana (Date of defense: 2020-07-20)
Biogas is a highly recognized alternative to fossil fuels towards a sustainable energy production. Massive use of biogas depends on the removal of contaminants that may affect performance of processing equipment and energy ...
Dimitriadis, Caterina (Date of defense: 2015-10-16)
Fisheries are complex systems, in which the process of assessment and management should explicitly consider the ecological, social and economic attributes of the system. For a responsible and sustainable management of ...