Now showing items 1-20 of 157

    A deterministic model for lake clarity; application to management of Lake Tahoe (California-Nevada), USA 

    Pérez Losada, Joaquim (Date of defense: 2001-11-15)

    This dissertation has as its goal the quantitative evaluation of the application of<br/>coupled hydrodynamic, ecological and clarity models, to address the deterministic prediction of water clarity in lakes and reservoirs. ...

    Abatement of siloxanes in sewage biogas: coupling adsorption and biological treatments 

    Santos Clotas, Eric (Date of defense: 2019-11-08)

    The anaerobic digestion of organic matter causes the formation of biogas that can be used in energy conversion systems for the production of electricity and heat, injection into the gas grid or as a fuel. However, biogas ...

    Adapting forest management to climate change 

    Mur Torrentó, Rubén Javier (Date of defense: 2013-12-10)

    Climate change is one of the most important challenges of the 21st century. The increase in the concentration of CO2 in the atmosphere, in temperatures, and changes in the precipitation pattern are expected to alter the ...

    Adopción de estándares de gestión energética e integración con estándares de gestión medioambiental 

    Laskurain Iturbe, Iker (Date of defense: 2015-05-26)

    Se trata de una Tesis Doctoral realizada en la modalidad de Tesis Doctoral por artículos, con el objetivo de analizar, en una perspectiva comparada con relación a los Sistemas de Gestión Medioambiental, qué son y qué ...

    Advanced thermal analysis of ReBCO superconductor precursor films and functional oxides 

    Rasi, Silvia (Date of defense: 2019-11-12)

    High temperature superconductivity and in particular YBa2Cu3O7-x (YBCO) coated conductors (CCs) are a crucial technology for the drastic reduction of CO2 emissions. Since nowadays YBCO CCs are not competitive economically, ...

    Agenda 21 Escolar en Guanajuato, dos experiencias, dos proyectos, un destino común... 

    Gómez González, María Virginia Rosalía (Date of defense: 2013-07-19)

    There are few documented cases and active programs of environmental education (EA) that support schools and teachers in their teaching for the care of the environment in the State of Guanajuato, Mexico. Two cases will be ...

    Agricultural practices, biodiversity and ecosystem services provided by bats in Mediterranean crops 

    Puig, Xavier, 1975- (Date of defense: 2021-07-09)

    We study the effect of organic farming practices on several taxa in olive groves and vineyards. Sessile organisms show a stronger response to treatment, their diversity being higher in organic vineyards. Vagile organism ...

    Agua, actores sociales y servicios de los ecosistemas en la cuenca del río Muga. Una aproximación socioecológica 

    Garau, Enrica (Date of defense: 2022-01-31)

    This doctoral thesis aims to identify and characterize the relationships between stakeholders and water resources through the sociocultural and spatial analysis of the water ecosystem services (WES) in the social-ecological ...

    Air pollutants and mental health of children in a rural region using compositional spatio-temporal models 

    Mota Bertran, Anna (Date of defense: 2024-03-06)

    This doctoral thesis addresses the relationship between the air pollutants particulate matter (PM10), nitrogen dioxide (NO2), ozone (O3), sulphur dioxide (SO2), carbon monoxide (CO), and mental disorders in children and ...

    Allocation of GHG emissions in a paper mill, an application tool to reduce emissions 

    Aldrich Tomàs, Remei (Date of defense: 2009-04-30)

    El sector de pasta i paper és considerat un dels set sectors industrials més intensius en consum energètic. La producció i consum d'electricitat i de vapor esdevenen les fonts majoritàries d'emissions de gasos d'efecte ...

    Analysis of chemotherapy drugs and related compounds in aquatic environment: removal, transformation and risk evaluation in eco-friendly and advanced technologies 

    Ferrando Climent, Laura (Date of defense: 2016-11-28)

    In order to evaluate the increasing environmental and human risk of anticancer drugs in the environment, more information needs to be gathered about their presence, their toxicity, bioaccumulation and persistence. In ...

    Analysis, occurrence, fate and behaviour of emerging micropollutants in wastewater and the receiving environment 

    Gusmaroli, Lucia (Date of defense: 2020-05-25)

    The presence of xenobiotics - such as pharmaceutically active compounds, endocrine disrupting compounds and pesticides - in the aquatic environment has risen great environmental concern due to their high toxicity even at ...

    Anàlisi d'escenaris i tendències en l'àmbit de la gestió mediambiental a la indústria catalana 

    Giménez Leal, Gerusa (Date of defense: 2001-10-19)

    Actualment, la indústria afronta el repte d'integrar les consideracions mediambientals en els seus plans de negoci. I no tan sols pel compromís ètic vers una correcta actuació mediambiental, sinó pel fet de que els clients ...

    Anàlisi dels descartaments efectuats per la flota d'arrossegament en el Golf de Lleó 

    Mallol i Martínez, Sandra (Date of defense: 2005-07-22)

    La pesca d'arrossegament practicada al mar Mediterrani incideix sobre un rang batimètric molt ampli i afecta a nombrosos tipus de fons que presenten comunitats molt diversificades, on les espècies de peixos, crustacis, ...

    Aprendizaje móvil y ciudadanía espacial en la educación para el desarrollo sostenible. Una propuesta para la enseñanza de las ciencias sociales en educación secundaria obligatoria 

    Boulahrouz Lahmidi, Meriam (Date of defense: 2018-05-18)

    This research aims to contribute to the development and improvement of education for sustainable development (ESD) in a society increasingly knowledgeable, reflecting about appropriate ESD practices by promoting the ...

    Aquatic community patterns across environmental gradients in a Mediterranean floodplain and their application to ecosystem restoration 

    Gallardo, Belinda (Date of defense: 2009-07-10)

    El presente estudio tiene como objetivo proporcionar una base de conocimiento sólida para la restauración ecológica de ríos, basada en la respuesta de comunidades acuáticas a cambios en la conectividad hídrica, factores ...

    Arsenic and fluvial biofilms: biogeochemistry, toxicity and biotic interactions 

    Barral Fraga, Laura (Date of defense: 2017-10-26)

    Based on the current knowledge about biofilm ecotoxicology and arsenic biogeochemistry in freshwater ecosystems, this thesis studied, under realistic environmental concentrations, i) the role of benthic biofilms in the ...

    Assessment and optimisation of the operation of integrated membrane system for wastewater reclamation 

    Mamo, Julian (Date of defense: 2018-12-11)

    The combination of two membrane technologies coupled together in series has become a standard technology when it comes to producing reclaimed water of high quality for potable reclamation or industrial applications. This ...

    At the edge of aquatic systems: intermittent streambed microbial communities’ responses to hydrological alterations 

    Gionchetta, Giulia (Date of defense: 2019-10-25)

    Hydrological drought is a process of natural desiccation mainly due to large shortage of rainfall events. Reduced precipitations and prolonged droughts are spreading worldwide and threaten the integrity of aquatic ...

    Balance or imbalance? The interplay of hydrology and nutrient dynamics in Mediterranean coastal lagoons 

    Meredith, Warren (Date of defense: 2024-03-14)

    Coastal wetlands and lagoons are some of the most fluctuating and productive ecosystems in the world. As transition zones between marine and continental environments, they provide numerous ecosystem services, including the ...