Now showing items 21-40 of 3185

    A low power listening with wake up after transmissions MAC protocol for WSNs 

    Cano Bastidas, Cristina (Date of defense: 2011-03-04)

    In the last few years Wireless Sensor Networks (WSNs) have become an interesting field of research mainly due to the challenges and constraints of their design and the broad range of potential applications they can provide. ...

    A midzone-based ruler adjusts chromosome compaction to analphase spindle length 

    Neurohr, Gabriel Erich (Date of defense: 2012-04-13)

    Partitioning of chromatids during mitosis requires that chromosome compaction and spindle length scale appropriately with each other. However, it is not clear whether chromosome condensation and spindle elongation ...

    A molecular approach to taxol biosynthesis 

    Onrubia Ibáñez, Miriam (Date of defense: 2012-04-03)

    Secondary metabolism in plants produces numerous compounds with wide-ranging activities, including the antineoplastic compound taxol and related taxanes. The biotechnological production of taxol has so far been based on ...

    A multidimensional approach to precarious employment: measurement, association with poor mental health and prevalence in the Spanish workforce 

    Vives Vergara, Alejandra (Date of defense: 2010-11-22)

    Objective: To study the psychometric properties and construct validity of a multidimensional instrument to measure employment precariousness; to assess the association between employment precariousness and poor mental ...

    A Multivariate approach to study the genetic determinants of phenotypic traits 

    Garrido Martín, Diego (Date of defense: 2020-01-30)

    We have developed an efficient and reproducible pipeline for the identification of genetic variants affecting splicing (splicing quantitative trait loci or sQTLs), based on an approach that captures the intrinsically ...

    A new Ligand-Based approach to virtual screening, and prolifing or large chemical libraries 

    Gregori Puigjané, Elisabet (Date of defense: 2008-07-08)

    La representació de les molècules per mitjà de descriptors moleculars és la base de moltes de les eines computacionals pel disseny de fàrmacs. Aquests mètodes computacionals es basen en l'abstracció de l'estructura química ...

    A quantitative approach to concept analysis 

    Nazar, Rogelio (Date of defense: 2010-10-01)

    The present research focuses on the study of the distribution of lexis in corpus and its aim is to inquire into the relations that exist between concepts through the occurrences of the terms that designate them. The initial ...

    A self-organizing management platform for wireless sensor networks 

    Cao Minh, Trang (Date of defense: 2014-09-25)

    Through advances in sensor, networking, semiconductor and energy storage technologies, Wireless Sensor Networks (WSNs) are increasingly being deployed in many important applications to enable users to access information ...

    A semantic web approach to digital rights management 

    García González, Roberto (Date of defense: 2006-04-21)

    Un dels principals requeriments de la gestió de drets digitals a la Web és un llenguatge compartit per a la representació del copyright. Les aproximacions actuals es basen en solucions purament sintàctiques, simples i ...

    A statistical dynamic cardiac atlas for the virtual physiological human: construction and application 

    Hoogendoorn, Corné (Date of defense: 2014-02-26)

    This thesis is centered on the construction of a cardiac atlas to serve as a common reference frame in the Virtual Physiological Human (VPH). The construction covers the entire construction pipeline, starting from a set ...

    A study of the acquisition of English as a foreign language: integrating content and language in mainstream education in Barcelona. 

    Roquet i Pugès, Helena (Date of defense: 2011-07-21)

    Esta tesis doctoral pretende aportar nuevos datos sobre los efectos del enfoque AICLE (Aprendizaje Integrado de Contenido y Lengua Extranjera) en las habilidades productivas y receptivas de los alumnos de una escuela privada ...

    A system-level, molecular evolutionary analysis of mammalian phototransduction 

    Invergo, Brandon M. (Date of defense: 2013-11-22)

    Phototransduction is the biochemical process by which a light stimulus is converted to a neuronal signal. The process functions through complex interactions between many proteins, which work in concert to tightly control ...

    A Systems-level study of giant regulation in Drosophila melanogaster 

    Hoermann, Astrid (Date of defense: 2014-11-14)

    Esta tesis revela la regulación transcripcional del gen gap giant (gt) en el embrión blastodermal de Drosophila por ingeniería inversa: un modelo matemático infiere los mecanismos subyacentes de datos cuantitativos de ...

    A temporal and pragmatic analysis of gestures-speech association: a corpus-based approach using the novel Multimodal MultiDimensional (M3D) labeling system 

    Rohrer, Patrick Louis (Date of defense: 2022-12-16)

    Human language is essentially multimodal in that speakers use multiple channels to convey meaning, including speech prosody and gesture (e.g. Mondada, 2016; Perniss, 2018). In the last decades, studies within the field of ...

    A unified approach to the emergence of complex communication 

    Corominas Murtra, Bernat (Date of defense: 2011-07-12)

    Aquesta tesi estudia l'emergència de complexitat en sistemes de comunicació naturals, prenent el llenguatge humà com a principal objecte d'estudi. Ens centrem en i) Patrons estadístics de complexitat, ii) Mecanismes ...

    A. C. elegans model for X-linked adrenoleukodystrophy : roles of pmp-4 fatty acid transporter in the nervous system 

    Guha, Sanjib Kumar (Date of defense: 2015-12-18)

    X-linked adrenoleukodystrophy (X-ALD) is an inherited neurodegenerative disorder. The genetic bases for all its different phenotypic variants are mutation in the gene encoding the peroxisomal ATP-binding cassette (ABC) ...

    The abject-other in the abolitionist feminist discourse on prostitution 

    Costa, Ana Lúcia Correira da (Date of defense: 2022-03-18)

    This work analyses the abolitionist feminist discourse on prostitution as elaborated by second-wave feminists in the last decades of the twentieth century. Its aim is to deconstruct such a discourse, to locate the point ...

    Abortion: what we ought to believe: an ontological and normative analysis 

    Páez Conesa, José Ezequiel (Date of defense: 2014-01-27)

    En esta tesis me pregunto si, moralmente hablando, debemos concebir el aborto como matar a alguien o, más bien, como impedir que alguien exista. En primer lugar, presento algunas distinciones preliminares acerca de valores ...

    Accesibilidad y usos positivos aplicados de la realidad extendida (virtual, aumentada y mixta) para personas con movilidad reducida: hacia un Metaverso inclusivo 

    Cañellas-Mayor, Alicia (Date of defense: 2023-02-13)

    Las tecnologías de la Realidad Extendida (XR) presentan retos de accesibilidad para las personas con movilidad reducida (PCMR), aunque también oportunidades que pueden beneficiar su bienestar. Para abordar ambos aspectos, ...

    Acceso a la atención en los sistemas de salud de Colombia y Brasil . Un análisis de las barreras, los factores determinantes y la equidad en el acceso 

    García Subirats, Irene (Date of defense: 2015-07-14)

    El acceso a la atención en salud es una de las principales preocupaciones de las políticas sanitarias, y su evaluación es fundamental para su diseño. El objetivo de esta tesis es analizar el acceso a los diferentes niveles ...