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Lagragian duality for efficient large-scale reinforcement learning
Reinforcement learning is an expanding field where very often there is a mismatch between the high performance of the algorithms and their poor theoretical justification. For this reason, there is a need of algorithms ...
Lagrangian modeling of reactive transport in heterogeneous porous media
Fluid flow, solute transport, and chemical reactions in porous media are highly relevant for multiple applications and in several fields of knowledge. Aquifers are a typical example of porous media, but many others exist, ...
Lagrangian transport of sinking particles. From theoretical characterization to oceanic applications
[eng] The vertical transport of particles plays a key role in the major mechanisms driving biogeophysical cycles in the ocean and contributes to the distribution of pollulants and its accumulation on the ocean bottom. ...
Lake macroinvertebrates and the altitudinal gradient in the Pyrenees / Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos
“Lake macroinvertebrates and the altitudinal gradient in the Pyrenees [Los macroinvertebrados lacustres y el gradiente altitudinal en los Pirineos]” is a thesis about freshwater macroinvertebrate communities inhabitting ...
Lamb: a simulation tool for air-coupled lamb wave based ultrasonic NDE systems
La técnica de las ondas de Lamb acopladas por aire representa un importante avance en el área de los Ensayos No Destructivos (END) de materiales laminares.<br/>Sin embargo la compleja naturaleza de las vibraciones mecánicas ...
Land law and town planning in Hong Kong: study of the relationship between these two areas
Hong Kong es una región muy capitalista (el lugar más capitalista del mundo), un lugar donde el cambio es constante. No obstante, por desgracia nada es tan fácil como parece (o por suerte, puesto que, si no, nuestra tesis ...
Land revenue, inequality and development in colonial India (1880-1910)
[eng] The determinants of economic development have been largely studied in social sciences. Researchers have mostly pointed at geographic (Roy, 2014; Sachs and Warner, 2001) and institutional factors (Acemoglu et al., ...
Land-cover and land-use change and deforestation in Colombia: spatial dynamics, drivers and modelling
Este estudio analiza el cambio en la cobertura y uso del suelo con énfasis en los procesos de deforestación en dos regiones contrastantes de Colombia: Andes y Guyana, entre 1985 y 2005. Se aplicó un enfoque espacial y ...
Land-use changes, cultural ecosystem services, and environmental conflicts: Evidence from rural Bulgaria
Como resultado de sus interacciones e interdependencias con las personas, los agroecosistemas se obtienen servicios de ecosistemas culturales (SEC) como identidad rural, conocimiento tradicional y ceremonias relacionadas ...
Landscape Analyses for Mobility and Raw Materials Procurement Strategies:The Acheulean Site of Santa Ana Cave in Calerizo de Cáceres, Extremadura, Spain.
Aquest treball presenta un estudi de la procedència dels materials lítics quartzítics procedents de la cova de Santa Ana a Calerizo de Càceres. Calerizo de Càceres és un sistema càrstic confinat entre pujols quartzítics ...
Landscape dynamics during the last 17,550 years in Cantabria, northern Iberian Peninsula. Approaches from palaeoecology
La regió cantàbrica (nord de la península Ibèrica) és una zona de gran interès paleoecològic. Es tracta d’una de les regions europees amb més jaciments arqueològics documentats, amb evidències de presència humana des del ...
Landscape fragmentation and resilience in seagrass meadows / Fragmentación del paisaje y resiliencia en praderas de fanerógamas marinas
Overall, this thesis is an attempt at approaching seagrass ecosystems from a landscape perspective, with the aim of increasing knowledge about the processes generating patterns at large spatial scales, and understanding ...
Landslide and debris flow warning at regional scale. A real-time system using susceptibility mapping, radar rainfall and hydrometeorological thresholds
Rainfall triggered shallow slides and debris flows constitute a significant hazard that causes substantial economic losses and fatalities worldwide. Regional-scale risk mitigation for these processes is challenging. ...
Landslide motion assessment including thermal interaction : an MPM approach
Risk associated with landslides of natural or man-made origin depends on the prediction of the post-failure behaviour of the mobilized mass. Numerical models capable of integrating the landslide geometry and its evolution, ...
Landslides in reservoirs: a coupled thermo-hydromechanical approach
La ocurrencia de deslizamientos es uno de los principales problemas presentes durante el diseño, construcción y explotación de presas y embalses. La inundación del pie de los taludes, así como el desembalse rápido, pueden ...
Language acquisition in bilingual infants : Early language discrimination in the auditory and visual domains
Learning language is a cornerstone in the cognitive development during the first year of life. A fundamental difference between infants growing up in monolingual versus bilingual environments is the necessity of the latter ...
Language and Access to Work: The Role of English in Recruiting
La present tesi és un estudi etnogràfic que analitza el paper dels coneixements d’anglès a l’accés a llocs de treball de nivell júnior i sènior a Barcelona. Se centra en les operacions internes de les agències de contractació ...
Language Aptitude in Young Learners: The Elementary Modern Language Aptitude Test in Spanish and Catalan
The present dissertation is concerned with language aptitude in young learners. The first aim of this dissertation is to validate the content of two new instruments: the adaptation to both Spanish (MLAT-ES) and Catalan ...
Language attitudes in a multilingual and multicultural context. The case of autochthonous and immigrant students in Catalonia
Considerant, d’una banda, la comprovada importància que adopten les actituds lingüístiques en l'adquisició de les llengües i, de l’altra, que esdevenen potenciadores de la integració social en contextos plurilingües, com ...
Language comprehension in children with Specific Language Impairment: an Eye-Tracking study
[eng] Children with Specific Language Impairment (SLI) show considerable difficulties in the linguistic production of verbal morphology marks and function words. The present study analyzes the capacity of children with SLI ...
