Mostrando ítems 21-30 de 151
Puig Broch, Sebastià (Fecha de defensa: 2008-01-15)
In the last decades, the awareness of environmental issues has increased in society considerably. There is an increasing need to improve the effluent quality of domestic wastewater treatment processes. ...
Mora Gómez, Juanita (Fecha de defensa: 2014-12-19)
This thesis studied the principal environmental controlling factors and microbial mechanisms involved in leaf litter decomposition in Mediterranean intermittent streams. Additionally, drought disturbance ...
Heras Colàs, Raquel (Fecha de defensa: 2014-06-23)
Aquest treball explora i aprofundeix en com s’integren les activitats que ofereixen els equipaments d’educació ambiental –entitats de l’àmbit educatiu no formal que es troben en espais naturals protegits–, ...
Vila Espuña, Sílvia (Fecha de defensa: 2010-04-08)
El penegal, Helicolenus dactylopterus dactylopterus (Pisces: Scorpaeniformes), és una espècie que habita profunditats d'entre els 200 i 1000 m i presenta una clara distribució batimètrica en funció de ...
Bacardit Peñarroya, Montserrat (Fecha de defensa: 2011-06-01)
Human activities have been interfering with the natural biogeochemical cycles of trace elements since the ancient civilizations. Although they are inaccessible and remote, high mountain lake catchments ...
Santos Clotas, Eric (Fecha de defensa: 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 ...
Gallardo, Belinda (Fecha de defensa: 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 ...
Varga, Diego (Fecha de defensa: 2007-11-28)
The methodology is focused on the use of digital air photos to monitor changes in land covers and to study its dynamics and its patterns in the last 50 years. The dissertation also take into account ...
Pérez Losada, Joaquim (Fecha de defensa: 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 ...
Torrent Fàbrega, Laura (Fecha de defensa: 2019-10-09)
The production of engineered nanomaterials (ENMs) has grown in last years due to their special physicochemical properties in respect to their bulk counterparts, derived from their small size (1-100 nm). ...