Universitat de Barcelona
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La captura i emmagatzematge geològic de CO2 es considera una opció viable per a la reducció de les emissions netes d’aquest gas a l’atmosfera terrestre. El procés consisteix a separar el CO2 de la resta de gasos generats ...
La epilepsia es una enfermedad con una elevada prevalencia e impacto sociosanitario. Aproximadamente un tercio de los pacientes son resistentes al tratamiento farmacológico y en estos casos debe considerarse la cirugía ...
We have investigated several properties of semiconductor electronic nanostructures. In the first part of the thesis, within the density functional theory we have addressed the ground state and the dipolar response of quantum ...
This PhD thesis is the result of our research on duality theory and completions for partially ordered sets. A first main aim of this dissertation is to propose different kind of topological dualities for some classes of ...
Tornadoes are the meteorological phenomenon which can produce the strongest surface wind on Earth, causing damage, injuries and fatalities. Several studies show that severe storm environments could be more frequent due to ...
Madangamines are a small group of marine alkaloids isolated from sponges of the order Haplosclerida collected by hand using scuba on reefs off Madang, Papua New Guinea. Madangamine A show significant in vitro cytotoxicity ...
La tesis doctoral consta de dos bloques principales. El primero es un estudio metodológico donde se estudia la preparación enantioselectiva de derivados de la cetona de Wieland-Miescher que posteriormente se empleará en ...
This doctoral thesis consists in two main parts. The first part focus in the study of methodology development in order to bring modularity and diversification to compounds studied within the research group. It consists ...
Lipophilicity is a key physicochemical descriptor used to understand the biological profile of (bio)organic compounds, xenobiotics and a broad variety of biochemical, pharmacological, and toxicological processes. This ...
The manuscript of this Doctoral Thesis has been divided into five main parts: a general introduction into the calyciphylline A-type alkaloids followed by three research chapters and conclude by a review about the radical ...
[eng] Atmospheric aerosol is an ensemble of atmospheric pollutants with a severe impact on human health and Earth climate. Particulate Matter (PM) effects vary depending on the composition and size. However, current air ...
Temporary rivers (TRs) are dynamic systems that typically shift between flowing, disconnected-pools and dry phases, and represent nearly 50% of the current global river network. Despite TRs support several unique and endemic ...
The main goal of this thesis is to combine electron tomography and electron energy loss spectroscopy (EELS) in the TEM, in order to obtain chemical and electronic information in 3D in the nanoscale. Tomography in the ...
[eng] From the observation of the cosmic microwave background radiation (CMBR) we know that the universe is isotropic on scales larger than ∼ 75 Megaparsec to at least one part in 100000. The leading paradigm for explaining ...
To better understand information behaviour and how to make information delivery systems more usable, this dissertation endeavours to investigate how people search, manage and use information resources. More precisely, this ...
To err is certainly human. Detect and correct our errors are fundamental during our interaction with the outside world. Therefore, understanding the nature of the brain mechanisms involved in the flexible evaluation of ...
[eng] We live surrounded by emergencies in a context of economic uncertainty: environmental damage, economic crises, and political conflict are only some examples that cast serious doubts about the political relevance of ...
This thesis is devoted to prove the concept of the CO(2) reduction to CH(4) with a decreasing in the voltage requirements using a photocatalytic mechanism. Subsequently, part of the solar energy is transferred to the ...
In the northwestern Mediterranean Sea, anglerfishes Lophius budegassa Spinola, 1807 and Lophius piscatorius Linnaeus, 1758 are among the most valuable demersal species and support an important fishery. Both anglerfishes ...
Psychotic disorders are psychiatric conditions with a worldwide prevalence of around 4% and a tremendous personal, economic and social burden. As complex phenotypes, psychotic disorders are caused by multiple genetic ...
