Mostrando ítems 1166-1185 de 1776
Montero Mirabet, Maria (Fecha de defensa: 2012-06-22)
Genetically modified crops are submitted to strict regulation to ensure the safety of consumers and the environment. To complement the comparison between GM plants and their counterparts, in the present Thesis, we evaluated ...
Quiroga Quiroga, Oscar Arnulfo (Fecha de defensa: 2012-12-18)
This thesis proposes a formalism to analyse and automatically exploit sequences of events, which are related with faults occurred in power distribution networks and are recorded by power quality monitors at substations. ...
Verdaguer Planas, Marta (Fecha de defensa: 2012-12-21)
The thesis presents and evaluates the application of the paradigm of agents to the management of the urban wastewater system. The system is conceptualised as a multi-agent system from the development of the models of ...
Puiggalí, Joan (Fecha de defensa: 2012-11-07)
The research we have conducted has been aimed at developing a new mechanism of extraction and use of parallelism at a high level, based on speculation techniques, in cluster environments. This allows our mechanism to be ...
Patiño Masó, Josefina (Fecha de defensa: 2012-11-09)
The main goal is to identify the prevalence and pattern of cocaine consumption among young people. The results obtained from surveys of a sample of 2139 university students served as input to harness new results ...
Genís i Mas, Daniel (Fecha de defensa: 2012-11-09)
Bernat Desclot finished writing his Chronicle at the end of the 13th century, but it was not published until 1616, in a Spanish translation written by the Barcelona historian and politician Rafael Cervera. The reasons for ...
Miàs Oller, Cristina (Fecha de defensa: 2012-12-03)
In this work, long-term behaviour of FRP RC beams has been investigated both analytically and experimentally to further extend the knowledge in this particular research domain. In this respect, a new methodology to determine ...
Masgrau Juanola, Mariona (Fecha de defensa: 2011-04-27)
This research examines the nature of visual poetry and its educational potential in the processes of teaching and learning reading and writing in primary education. The first part looks into the internal and external logic ...
Luis Luis, Josep Maria (Fecha de defensa: 1999-06-28)
The vibrational contribution to nonlinear optics (NLO) properties is the mean goal of study of this Thesis. The vibrational contribution can be split in the nuclear relaxation contribution and the curvature contribution. ...
Camas Roda, Ferran (Fecha de defensa: 1999-12-21)
The aim of this doctoral thesis is to consolidate the preventive perspective as one of priority action, both by public authorities and private companies, in order to protect the health and safety of employees. To this end, ...
Blanco Aparicio, Carmen (Fecha de defensa: 1998-07-17)
In this work we report that potato carboxypeptidase inhibitor suppresses the growth of several human and mouse pancreatic adenocarcinoma cell lines. The inhibitor also reduces the growth of solid tumors obtained by ...
Ribó i Panosa, Marc (Fecha de defensa: 1994-12-16)
The answer to whether or not, human pancreatic ribonuclease may have a diagnostic value as a serum marker of pancreatic disease, depend upon the specific detection of ribonucleases originated in pancreas amogn those ...
García-Berthou, Emili (Fecha de defensa: 1994-11-03)
Before 1910, the fish assemblage of Banyoles Lake (Catalonia, Spain) consisted of: eel (Anguilla anguilla), Mediterranean barbel (Barbus meridionalis), freshwater blenny (Bennius fluviatilis), three-spined stickleback ...
Borrego i Moré, Carles (Fecha de defensa: 1996-11-15)
Green bacteria possess one of the most complexes antenna systems within the group of the photosynthetic microorganisms. One reason for this complexity is the high diversity of pigments antenna, the bacteriochlorophylls ...
Verdaguer Murlà, Dolors (Fecha de defensa: 1995-01-12)
This thesis is a study of the structure and development of the young radicular system of Quercus suber. The work is focused on the sprouting capacity of the radicular system of the seedling, the development and organization ...
Amaya Molinar, Carlos Mario (Fecha de defensa: 2012-10-22)
The study applies in an innovative way a set of marketing concepts to sun and sea tourist destinations in two continents. The frame of reference analyzes mass tourism, tourist destinations and its management mechanisms; ...
Costas Salgueiro, Miquel (Fecha de defensa: 1999-02-26)
This thesis is organized in seven independent chapters: I) a description of the structure and reactivity of the metalloproteins of copper and iron which deal with the oxygen processing into living organisms; II) an study ...
Sánchez Navarro, Juan Manuel (Fecha de defensa: 1999-03-17)
For the selective separation of Noble Metals, different new chelating polymers with the same functional group, based on tri-isobutylphosphine sulphide, have been synthesised. Different spacers between the polymeric matrix ...
Planas i Grabuleda, Marta (Fecha de defensa: 1996-03-15)
Spiro-γ-lactones are widely distributed among natural products, several of them being well known by their interesting biological activities. We describe herein the synthesis of 1-oxaspiro[4.4]nonan derivatives and ...
Heras i Corominas, Montserrat (Fecha de defensa: 1999-07-27)
According to a strategy based on an Aza-Wittig reaction type, an efficient methodology in solution toward the synthesis of libraries of 2-aminoimidazolones with high molecular diversity has been developed. The strategy is ...