Now showing items 2261-2280 of 3222

    On the association between chromosomal rearragements and genic evolution in mammals 

    Marquès i Bonet, Tomàs (Date of defense: 2007-01-15)

    The main objectives of this work are:<br/>a) To test the predictions of suppressed-recombination chromosomal speciation models on two different lineages of mammals: rodents and rimates. Suppressed-recombination chromosomal ...

    On the characterization of protein-DNA interactions using statistical potentials and protein-protein interactions 

    Fornés Crespo, Oriol (Date of defense: 2015-01-21)

    Protein-DNA interactions are indispensable players in the daily activities of cells. DNA-binding proteins regulate gene expression and are responsible of DNA replication, packaging, repair and recombination. Among them, ...

    On the development of computational tools for the study of protein-protein interactions and protein-protein binding 

    Marín López, Manuel Alejandro (Date of defense: 2017-01-13)

    Proteins are involved in almost all cell processes, with physical interaction between them being key to their function and dictated by its 3D structure. Hence, the study of protein-protein interactions and protein-protein ...

    On the evaluation of temporally extended experiences 

    Cojuharenco, Irina (Date of defense: 2007-06-27)

    La evaluación de las experiencias extendidas en el tiempo se puede hacer de muchas formas. El paradigma --hedometer' en economía sugiere que la evaluación global de la experiencia se puede explicar por las impresiones de ...

    On the evolution of cancer genomes : Signatures of selection reveal cancer genes across multiple tumor types 

    Zapata Ortiz, Luis (Date of defense: 2016-10-05)

    Tumors are composed of fast-growing cells that become malignant under selection of biological functions needed for cancer development. In this thesis, I intend to uncover the basic evolutionary principles underlying cancer ...

    On the flexibility of the perception and cognition of broken harmonic expectations 

    Pagès-Portabella, Carlota (Date of defense: 2023-10-19)

    La música està present en totes les cultures. Tot i tenir les mateixes habilitats auditives, la manera en la què experimentem la música depèn del context cultural, la música que escoltem en el dia a dia o si hem rebut ...

    On the legitimacy of Nationalism: minorities, majorities, and the multinational state 

    Costa, Josep (Date of defense: 2023-12-15)

    This thesis develops normative arguments about nationalism in multinational contexts. It draws consequences from the arguments used by advocates of nationalism, and analyzes their implications for a theory of the multinational ...

    On the orchestration of dorsal closure in Drosophila melanogaster : from tissue-scale control to cellular-scale remodeling 

    Hayes, D. Peran (Date of defense: 2016-12-13)

    The vast diversity of life on Earth develops from relatively uniform beginnings via self-organised movements occurring between groups of cells. Whilst the variety of shapes resulting from morphogenesis is boundless, the ...

    On the prevalence and role of epistasis in shaping fitness within and between populations 

    Söylemez, Onuralp (Date of defense: 2015-10-09)

    The role of epistasis – inter-dependent contributions of alleles to fitness – in shaping genetic variation within and between populations is an important question in evolutionary biology with significant implications for ...

    On the relationship between native and non-native speech perception and speech production 

    Schmitz, Judith (Date of defense: 2016-03-18)

    Models of speech perception differ in the nature of the relationship between speech perception and production. Whether speech perception and production processes are based on a common representations ̶ the articulatory ...

    On the relationship between structure and function of gene circuits : Study of evolvability and multi-functionality 

    Jiménez Asins, Alba (Date of defense: 2016-05-11)

    Per tal d'estudiar la relació complexa entre l'estructura d'un circuit genètic i la seva funció, ens centrem en estudiar dues proprietas: la seva capacitat evolutiva i la seva multi-functionalitat. Primer, fins a quin punt ...

    On the study of 3D structure of proteins for developing new algorithms to complete the interactome and cell signalling networks 

    Planas Iglesias, Joan (Date of defense: 2013-01-21)

    Proteins are indispensable players in virtually all biological events. The functions of proteins are determined by their three dimensional (3D) structure and coordinated through intricate networks of protein-protein ...

    On Two Sided Network Markets 

    Corominas Bosch, Margarida (Date of defense: 1999-10-13)

    Esta tesis está centrada en el estudio de mercados bilaterales en los cuales la comunicación no es completa, sino que viene dada por una red de comunicación. Las principales preguntas formuladas en la tesis son determinar ...

    ONGs ecologistas en España: discurso, negacionismo ideológico y crisis climática 

    Kramcsak Muñoz, Xuksa (Date of defense: 2020-12-15)

    Esta investigación analiza el discurso de cuatro ONGs ecologistas con sede en España —Greenpeace, WWF, Amigos de la Tierra y Ecologistas en Acción— con relación al negacionismo ideológico del cambio climático desde el 2004 ...

    Online discussion forum and political communication: Nairaland in Nigeria. An interplay between a digital platform and politics 

    Ogundeji, Olusegun Israel (Date of defense: 2024-02-02)

    There are several reasons why politics is the most discussed topic on Nigeria’s and perhaps Africa’s largest online discussion forum, Nairaland. As Nigeria grows in its population and digital landscape, including with ...

    Operationalization of collaborative blended learning scripts: a model, computational mechanisms and experiments 

    Pérez Sanagustín, Maria del Mar (Date of defense: 2011-07-01)

    Portable and interactive technologies are changing the nature of collaborative learning practices. Learning can now occur both in and beyond the classroom and furthermore combine formal and informal activities monitored ...

    Opinión pública y diplomacia británica ante la guerra de Sucesión española (1710-1713) 

    Castellano García, Manuel Alejandro (Date of defense: 2018-01-09)

    Concluir la guerra de Sucesión española supuso un ingente esfuerzo que obligó al gobierno de Robert Harley a usar todos los medios a su alcance. El presente trabajo estudia los movimientos diplomáticos y las estrategias ...

    Opposable reasons: solving conflicts of fundamental rights and norms 

    Guilanyà Serrano, Rubèn (Date of defense: 2021-05-28)

    This dissertation argues that the deadlock that constitutional courts find themselves in when justifying decisions on cases that involve conflicting constitutional norms can be best resolved by appealing to a particular ...

    Optical flow: related problems 

    Palomares, Roberto P. (Date of defense: 2017-04-06)

    Motion estimation plays a key role in many of the image processing and computer vision problems. This thesis addresses the problem of recovering a dense motion field from a scene through the Calculus of Variations. In ...

    Optimal fiscal policy, limited commitment and learning 

    Caprioli, Francesco (Date of defense: 2009-07-03)

    Esta tesis trata sobre cómo la autoridad fiscal debe fijar los impuestos distorsivos de manera óptima. El capítulo 1 analiza el problema de la política fiscal cuando el gobierno tiene un incentivo a hacer default con su ...