Universitat de Barcelona
Now showing items 8162-8181 of 11297
This thesis presents the results of applying new strategies to understand the mechanism and explore the sensing performance of metal oxide (MOX) nanowire based gas sensors by testing individual nanowire gas sensors, running ...
Antiretroviral therapy has dramatically reduced morbidity and mortality associated with HIV-1 infection and converted AIDS into a manageable chronic disease. During the past 15 years, antiretroviral drugs have become less ...
Ischemia-reperfusion injury (IRI) is an inevitable situation in clinical settings such as liver transplantation and hepatic resection. It develops when blood flow is interrupted for a long period of time (ischemia) and ...
La sortida de mitosis comprèn tots els processos de la mitosis que van des de la segregació de les cromàtides germanes a l’obtenció de dues cèl·lules filles genèticament idèntiques. A nivell molecular, les cèl·lules inicien ...
Antiangiogenic drugs are used clinically for treatment of different types of cancers and in the case of renal cell carcinoma (RCC) are now standard first-line treatments (Rini, 2009). Nevertheless, these agents mainly serve ...
The goal of this thesis is to study the large scale structure of the Universe from a theoretical point of view. In particular, the different chapters of this thesis focus on developing statistic tools to improve the ...
La presente tesis se ha centrado en el desarrollo de nuevas tecnologías para el desarrollo de sensores de gas semiconductores. Por tal motivo se han desarrollado dos técnicas para el desarrollo de nanopartículas de ...
[eng] BACKGROUND: Low-density lipoprotein receptor-related protein 1 (LRP1) plays a key role in fatty acid metabolism and glucose homeostasis. In the context of dyslipidemia, LRP1 is positively regulated in the heart. The ...
La presente tesis doctoral es el resultado de un estudio sobre la familia y la persona, apoyado por la reflexión filosófica, y siguiendo la línea personalista. El contenido está estructurado a partir de cinco capítulos: ...
In this project, nanoparticles were produced by solution-based one-pot synthesis, particularly colloidal methods. A series of powerful tools were used to characterize the structure and surface compositions before they were ...
In this work, the effect of CO2 on the hydrogen production under substoichiometric ethanol steam reforming (ESR) conditions over nickel based catalysts was studied. A special emphasis was focused on the application of ...
La presente investigación se propone analizar el impacto de las prácticas educativas sobre la construcción identitaria de los niños indígenas mayas bilingües en el Estado de Chiapas, México. El objeto de estudio enfoca así ...
[eng] Groundwater has been traditionally considered a reliable source of freshwater. However, the low replenishment rates and the increasing contamination due to different anthropogenic activities, such as the use of ...
For the development of more compact and efficient thermal systems, nanofluids are presented as a promising option to replace conventional heat transfer fluids. Nanofluids are a suspension of low concentration of nanoparticles ...
The amount of dissolved inorganic nitrogen delivered to streams and groundwater has substantially increased in the last decades due to anthropogenic impacts. This fact has stimulated research on processes related to the ...
INTRODUCCIÓN En el ámbito de la formación de Enfermería, y como consecuencia de la adaptación al Espacio Europeo de Educación Superior, se han producido en estos últimos años numerosos retos para los docentes universitarios. ...
El creciente interés existente en la actualidad por la investigación en el campo del material particulado atmosférico se debe a la identificación de efectos adversos de este contaminante sobre la salud y los ecosistemas. ...
El propòsit inicial d'aquesta Tesi Doctoral era la de trobar algunes respostes sobre les moltes dificultats que tenen els estudiants sords en l'aprenentatge de les matemàtiques durant l'ensenyament obligatori, així com ...
[cat] A) HIPÒTESIS: Hipòtesi 1: Les persones que pateixen un primer episodi psicòtic no afectiu i no han rebut tractament antipsicòtic previ tenen concentracions basals de prolactina més elevades que les persones ...
[spa] Los receptores ionotrópicos de tipo N-metil-D-aspartato (NMDAR) son canales iónicos activados por glutamato que juegan un papel clave en la fisiología neuronal. Los avances en la secuenciación masiva han identificado ...
