Now showing items 1494-1513 of 1750

    Response of the benthic macroinvertebrate community to a point source in La Tordera stream (Catalonia, NE Spain) 

    Ortiz Durà, Jesús (Date of defense: 2005-06-30)

    Vam monitoritzar paràmetres físics i químics, macroinvertebrats bentònics, clorofil·la a, productors primaris i matèria orgànica durant un any (2001-2002) per examinar els efectes d'una font puntual sobre la composició ...

    Rethinking the governance of local cultural policy from the perspective of sustainability 

    Baltà Portolès, Jordi (Date of defense: 2023-12-05)

    This thesis considers how the climate crisis and broader sustainability challenges call for a revision of approaches to cultural policy and, more specifically, what this implies for the governance of local cultural policy. ...

    Revaloració de la fracció cel·lular de la sang de porc procedent d'escorxadors industrials 

    Toldrà i Alegret, Mònica (Date of defense: 2002-11-22)

    La sang de porc és un subproducte comestible que es genera als escorxadors industrials durant el procés d'obtenció de la canal. Aquest subproducte es caracteritza per presentar una elevada càrrega contaminant i, degut a ...

    Revisiting STEAM in the interplay between extrinsic and intrinsic goals of education: Implications for teaching and teacher training 

    Rodrigues-Silva, Jefferson (Date of defense: 2023-07-28)

    Considering non-consensual understandings, we aim to revisit STEAM exploring its distinctiveness as an educational approach embedded within the broader discourses of education and tensions between the extrinsic and intrinsic ...

    El règim jurídic del litoral català 

    Aguirre i Font, Josep M. (Date of defense: 2013-03-07)

    This thesis focuses on regional coastal planning, starting with a look at the scope of the new coastal planning responsibilities assumed by the Catalan Government as established in article 149.3 of the Statute of Autonomy ...

    Régimen fiscal especial de las aportaciones no dinerarias 

    Chasco Arellano, Benjamín (Date of defense: 2024-02-23)

    The economic environment in which companies operate has changed dramatically in recent decades. From a stable and local environment, we have moved to a global ecosystem, where technological and organizational changes happen ...

    Régimen jurídico de la seguridad alimentaria. De la policía administrativa a la gestión de riesgos 

    Rodríguez Font, Mariola (Date of defense: 2006-07-04)

    La policia administrativa, una de les més clàssiques formes d'intervenció pública en l'esfera jurídica dels particulars, ha vingut caracteritzant fins a temps recents l'acció administrativa en el sector dels aliments. No ...

    Rhode. Caracterització del jaciment i de les produccions dels seus tallers ceràmics 

    Puig i Griessenberger, Anna M. (Date of defense: 2006-12-22)

    RESUM<br/>En la primera part de la tesi es revisen els materials arqueològics i els documents de les excavacions antigues al jaciment grec de la Ciutadella de Roses (Alt Empordà). Es fan estudis comparatius i de conjunt ...

    Rhodium(I) catalyzed [2+2+2] cycloaddition reactions: experimental and theoretical studies 

    Dachs Soler, Anna (Date of defense: 2011-07-29)

    The [2+2+2] cycloaddition reaction involves the formation of three carbon-carbon bonds in one single step using alkynes, alkenes, nitriles, carbonyls and other unsaturated reagents as reactants. This is one of the most ...

    Rhodium-catalysed [2+2+2] cycloaddition reactions for the preparation of highly functionalised cyclic compounds 

    Cassú Ponsatí, Daniel (Date of defense: 2018-04-20)

    Transition metal-catalysed [2+2+2] cycloaddition reactions involving unsaturated substrates represent one of the most elegant methods in organic chemistry to prepare functionalised cyclic compound. This doctoral thesis is ...

    Rhodium-catalyzed cyclization reactions of 1,5-bisallenes involving alkenes and alkynes: experimental and theoretical studies 

    Vila Vadrí, Jordi (Date of defense: 2023-04-21)

    The development of novel catalytic methodologies involving the formation of carbon – carbon/heteroatom bonds to produce cyclic systems constitutes a field of great interest in the modern synthetic organic chemistry. Over ...

    Ricard Giralt i Casadesús, un noucentista transversal (1884-1970): arquitectura, urbanisme i municipi a la Catalunya del segle XX 

    Gil, Rosa Maria, 1962- (Date of defense: 2014-07-18)

    The present thesis studies in depth a perspective of the noucentista movement focusing on the professional career of the architect Ricard Giralt Casadesús (1884-1970) and particularly on his urban design approach and social ...

    Rice seeds as biofactories of the production of antimicrobial peptides 

    Montesinos Barreda, Laura (Date of defense: 2014-05-16)

    A series of antimicrobial peptides (AMPs) derived from the BP134 peptide (a member of the CECMEL11 library) exhibited potent bactericidal effect and low cytotoxicity, and were selected for expression in transgenic rice. ...

    Roadmap for scaling up thermophilic CO2 bioreduction to acetate : shedding light on using surplus renewable energy and industrial off gases 

    Rovira Alsina, Laura (Date of defense: 2022-12-02)

    Carbon dioxide (CO2) is largely emitted in the ignition of fossil fuels for transport, electricity generation or other industrial processes. CO2 is an inorganic compound that exists naturally on Earth, but its concentration ...

    Robot learning applied to autonomous underwater vehicles for intervention tasks 

    Carrera Viñas, Arnau (Date of defense: 2017-07-21)

    The interest in performing underwater tasks using Autonomous Underwater Vehicles (AUVs) has been growing over the past few years. In this thesis, a flexible framework for underwater interventions using a Learning ...

    Robust and fault-tolerant strategies for controlling blood glucose in patients with type 1 diabetes 

    Beneyto Tantiña, Aleix (Date of defense: 2020-12-02)

    Type 1 diabetes is a serious disease that must be monitored and controlled artificially by supplying exogenous insulin to the body. The artificial pancreas (AP) is a closed-loop system that resulted from integrating an ...

    Robust control of systems subjected to uncertain disturbances and actuator dynamics 

    Villamizar Mejia, Rodolfo (Date of defense: 2005-03-17)

    Esta tesis está enfocada al diseño y validación de controladores robustos que pueden reducir de una manera efectiva las vibraciones structurales producidas por perturbaciones externas tales como terremotos, fuertes vientos ...

    Robust image segmentation applied to magnetic resonance and ultrasound images of the prostate 

    Ghose, Soumya (Date of defense: 2012-10-19)

    Prostate segmentation in trans rectal ultrasound (TRUS) and magnetic resonance images (MRI) facilitates volume estimation, multi-modal image registration, surgical planing and image guided prostate biopsies. The objective ...

    Robustness against large-scale failures in communications networks 

    Segovia Silvero, Juan (Date of defense: 2011-12-15)

    This thesis studies robustness against large-scale failures in communications networks. If failures are isolated, they usually go unnoticed by users thanks to recovery mechanisms. However, such mechanisms are not effective ...

    Robustness on resource allocation problems 

    Muñoz i Solà, Víctor (Date of defense: 2011-02-17)

    En problemes d'assignació de recursos, normalment s'han de tenir en compte les incerteses que poden provocar canvis en les dades inicials. Aquests canvis dificulten l'aplicabilitat de les planificacions que s'hagin fet ...