Universitat de Girona
Mostrando ítems 1710-1729 de 1765
The transformation of C-H bonds into C-O/N bonds is a process of interest in organic synthesis, but controlling the reactivity and selectivity among the multiple C-H bonds existing in most molecules is a challenging task. ...
This thesis aims to contribute to the understanding of the invasive success of two invasive fishes (Gambusia affinis and G. holbrooki). We reviewed four Internet databases and the literature to clarify their introduction ...
Accurate underwater 3D perception is essential to advance towards the automation of expensive, dangerous and/or time-consuming tasks, such as the inspection, maintenance and repair of off-shore industrial sites. Accurate ...
This thesis addresses the development of resources for accurate scaling and uncertainty estimation of image-based 3D models for scientific purposes based on data acquired with monocular or unsynchronized camera systems in ...
Omnidirectional vision has received increasing interest during the last decade from the computer vision community. However, the use of omnidirectional cameras underwater is still very limited. In this thesis we propose ...
Aquesta tesi tracta sobre el problema de la navegació per a vehicles submarins autònoms que operen en entorns artificials estructurats com ara ports, canals, plataformes marines i altres escenaris similars. A partir ...
Biological invasions have become one of the most pervasive threats to native ecosystems worldwide, causing species extinctions, disrupting the functioning of ecosystems, altering the provision of critical ecosystem services ...
The village paradigm presents some benefits compared with the library paradigm; people can adapt the answer content as a function of who is requesting the information, or furthermore, people can perform clarifications of ...
La tesis doctoral "Urbanismo Ambiental y Evaluación Estratégica" investiga y propone un renovado papel del urbanismo y muy especialmente de la ordenación del territorio como instrumentos no tan sólo de valor para la ...
The excessive use of ICT and Social Networks, and Media Multitasking among adolescents is a complex phenomenon due to the multiplicity of factors involved in its genesis. The main objective is the study of the excessive ...
PURPOSE: To determine the role of MRI and MR spectroscopy (MRSI) in the diagnosis of infertility. To stablish normal values of the metabolites involved in the spermatogenesis (choline, creatine, and lipids) and to quantify ...
The present study focuses on the characterization of solid-liquid extraction techniques for the separation and preconcentration of rare-earth elements and precious metals. We developed an impregnated resin with di ...
En les últimes dècades, l'increment dels nivells de radiació solar ultraviolada (UVR) que arriba a la Terra (principalment degut a la disminució d'ozó estratosfèric) juntament amb l'augment detectat en malalties relacionades ...
The severity of traumatic brain injury (TBI) depends on the primary injury and subsequent complications. The Glasgow Coma Scale (GCS) is used to assess its initial severity. We talk about mild TBI when the GCS score ranges ...
SDN is a network technology that separates control functions and the data plane. This separation allows flexibility in the management and use of network resources because the software is specialized in controlling the ...
Electronic Health Record are legal documents where all the bio-psycho-social information of care received by the healthcare system is recorded throughout their lives. The first causes of death in Spain are cardiovascular ...
Patients often require venous access. The lack of a scale to predict this difficulty in the emergency department makes the validation of an instrument all the more necessary. The use of ultrasounds to locate veins makes ...
Urinary incontinence (UI) is a dysfunction that has a very negative impact on the quality of life of women who suffer from it (low self-esteem, shame, restriction of social contacts, etc.). Different factors involved in ...
El paisaje se ha considerado un elemento fundamental en la preferencia para visitar espacios naturales, con alto valor ecológico y paisajístico, con el propósito de realizar actividades turísticas y recreativas. Esta tesis ...
Natural fibers have been used recently as reinforcement of polymer-matrix based composites. The present thesis examines the mechanical properties of high density polyethylene (HDPE) composite reinforced with sisal fiber, ...
