Browsing TD-Ciencias by Title
Now showing items 993-1012 of 1087
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The atomic-scale limits of magnetism and superconductivity explored by electron excitations in tunneling spectroscopy
(2019-01-25)Esta tesis estudia los fenómenos de magnetismo y superconductividad a escala atómica por medio de Microscopía y Espectroscopía de Efecto Túnel a bajas temperaturas (STM/STS) en condiciones de ultra-alto vacío. Estos ... -
The behaviour and use of space of the domestic fowl in alternative meat and egg production systems
(2016-04-18)Alternative poultry production is characterized by a large space availability provided to the birds as compared to intensive systems. A better space availability increased the behavioural and movement opportunities and, ... -
The desiccation tolerance through a unicellular and chlorophyllous fern spore
(2020-01-08)La presente tesis, por un lado, establece un protocolo universal para definir la tolerancia a la desecación en tejidos fotosintéticos y posteriormente se centra indagar las características ecofisiológicas que posibilitan ... -
The dynamics of realistic field theory solitons
(2023-05-29)Las cuerdas cósmicas son defectos topológicos que podrían haberse creado en una transición de fase en el universo primigenio. La dinámica de las redes de cuerdas cósmicas se ha estudiado por medio de dos tipos diferentes ... -
The economic evaluation of air pollution in India
(2023-02-03)This doctoral thesis consists of three empirical applications aimed to conducting in-depth research inthe fields of economic valuations. Firstly, a series of general questions regarding the individualperception and awareness ... -
The energy cost of primary metabolism vacuole expansion: central to shape toamto leaf development under ammonium nutrition
(2020-07-10)Ammonium (NH4+) is a nitrogen source of great interest in the context of sustainable agriculture. Its application in the field together with nitrification inhibitors has been extensively proven efficient to limit detrimental ... -
The forward problem for the electromagnetic Helmholtz equation
(2014-03-12)[EN]We consider the Helmholtz equation in Rd, d 3, with electric and magnetic potentials. The aim of this thesis is to study the direct problem of such an equation for potentials that decay at in nity, but also have ... -
The genus Pyrenaearia (Gastropoda, Helicoidea): molecular an dmorphological systematics, biogeography and population dynamics
(2019-05-10)En esta tesis se abordan la sistemática, la biogeografía y la dinámica poblacional del género de gasterópodos terrestres Pyrenaearia, endémico del norte de la Península Ibérica y restringido a zonas de montaña, que en un ... -
The random diffusivity approach for diffusion in heterogeneous systems.
(2020-12-16)The two hallmark features of Brownian motion are the linear growth of the meansquared displacement (MSD) with diffusion coefficient D in d spatial dimensions, andthe Gaussian distribution of displacements. With the increasing ... -
The Role of Graphene for Advanced Electrochemical Energy Storage Devices
(2022-03-24)En el presente estudio se exploran los beneficios de la integración de materiales basados en grafeno en sistemas de almacenamiento energético avanzados tales como baterías litio-azufre, baterías sodio-oxígeno, condensadores ... -
The role of H-bonds on the structure and dynamics of very concentrated polymer solutions
(2015-10-02)El proposito de la presente tesis doctoral es determinar como la presencia de moleculas de disolventes afecta las dinamicas de un polmero en diferentes escalas temporales y espaciales y como la dinamica del disolvente esta ... -
The role of the cationic and helper lipids on niosomes for gene delivery applications: transfection of retina and brain as a main goal.
(2016-09-23)Currently, gene delivery has become a tangible option for the treatment of several diseases. However, there are few available options in the market, where viral vectors are the preferred option due to their high transduction ... -
The Schrödinger Equaton and Uncertainty Principles
(2020-09-02)The main task of this thesis is the analysis of the initial data u0 of Schrödinger’s initial value problem in order to determine certain properties of its dynamical evolution. First, we consider the elliptic Schrödinger ... -
The Use of Mesenchymal Stromal Cells and Tissue-Engineered Blood Vessels for Seamless Implant Integration
(2021-09-24)In recent years, organ transplantation technology has made significant improvements regarding long-term survival, substantially decreasing the risk of graft rejection. However, with each passing year,the gap between available ... -
Theoretical approach to atomic-scale nanoplasmonics as probed by light and swift electrons
(2021-05-06)This thesis tackles the theoretical description of atomic-scale features in plasmonic nanostructures asprobed by light and swift electrons. Plasmonic nanostuctures are known to localize and enhanceelectromagnetic fields ... -
Theoretical characterization in the functionalization and design of low dimensional systems: carbon transition metal nanostructures and phosphorene isoelectronic compounds
(2017-06-30)El trabajo de esta tesis consiste en el estudio teórico mediante cálculos computacionalesbasados en la teoría del funcional de la densidad (DFT) de las propiedades electrónicas ymagnéticas de nanomateriales. Dentro de los ... -
Theoretical characterization of new dynamic bonds for responsive materials and their optical properties
(2023-06-16)En esta tesis, hemos investigado diferentes tipos de enlaces dinámicos como FLP-linker y las interacciones metal-ligando con propiedades mecánicas favorables para su incorporación en materiales poliméricos. Además de esto, ... -
Theoretical Characterization of Pentacovalent Oxyphosphorane Intermediate Structures of the Hydrolysis of RNA catalyzed by RNase A
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2010-06-25)En el presente proyecto hacemos uso de métodos teóricos para el análisis y caracterización de los mecanismos de reacción de hidrólisis del enlace fosfodiester en moléculas de ARN, y así mismo, el análisis del proceso ... -
Theoretical description of low-energy excitations in nanostructures as probed by fast electrons
(2019-05-17)En esta tesis, se describe teóricamente cómo los haces de electrones rápidos enfocados interactúan con excitaciones de baja energía de interés en el campo de la nanofotónica: fonones ópticos, vibraciones moleculares, ... -
Theoretical simulations of nanoconfined water
(2017-06-05)El objetivo de esta tesis es el estudio de las propiedades del agua bidimensional por simulacionescomputacionales. Lo hacemos basándonos en dinámica molecular utilizando potenciales empíricos ycálculos de primeros principios. ...