Browsing by Title
Now showing items 29730-29749 of 41726
New biotechnological systems for the research on aryltetralin lignans in Linum album
Linum album is an herbaceous plant with medical interest due to its content of podophyllotoxin (PTOX), an aryltetralin lignan with cytotoxic activity. The study of biotechnological alternatives has generated big interest. ...
New carbocyclisations of polyunsaturated hydrazones catalysed by rhodium(I)
Some of the most powerful methods for synthesizing complex organic molecules with high levels of chemo-, diastereo- and enantioselectivity rely on metal carbene chemistry. These compounds are versatile reaction intermediates ...
New catalytic advanced oxidation processes for wastewater treatment
En cuanto a la mejora de los Procesos de Oxidación Avanzada para el tratamiento de aguas residuales, se han diseñado y estudiado nuevos procesos catalíticos Fenton y ozonización catalítica para la eliminación de contaminantes ...
New Catalytic Methods for Pauson-Khand Reactions, Isomerization and Asymmetric Hydrogenations. Application to the Synthesis of Bioactive Compounds
The main contribution of this doctoral thesis has been devoted to the field of synthetic organic chemistry. The Pauson-Khand reaction (PKR) is a metal-catalyzed [2+2+1] cycloaddition between an alkyne, an alkene and a ...
New Challenges in Learning Classifier Systems: Mining Rarities and Evolving Fuzzy Models
Durant l'última dècada, els sistemes classificadors (LCS) d'estil Michigan - sistemes d'aprenentatge automàtic que combinen tècniques de repartiment de crèdit i algorismes genètics (AG) per evolucionar una població de ...
New Challenges in Quality of Services Control Architectures in Next Generation Networks
A mesura que Internet i les xarxes IP s'han anat integrant dins la societat i les corporacions, han anat creixent les expectatives de nous serveis convergents així com les expectatives de qualitat en les comunicacions. Les ...
New challenges in Rh(I)-catalysed [2+2+2] cycloaddition reactions
This doctoral thesis studies the involvement of challenging unsaturated substrates in the transition-metal catalysed [2+2+2] cycloaddition reaction, as well as new catalytic systems for the reaction. First, Morita-Baylis-Hillman ...
New challenges in rural development: A multi-scale inquiry into emerging issues, posed by the global land rush
En los últimos años están surgiendo nuevos retos asociados al desarrollo rural, catalizados por una fiebre mundial por la adquisición de tierras a gran escala. Este fenómeno, conocido como ‘acaparamiento de tierras’, está ...
New Challenges on Web Architectures for the Homogenization of the Heterogeneity of Smart Objects in the Internet of Things
Aquesta tesi tracta de dues de les noves tecnologies relacionades amb la Internet of Things (IoT) i la seva integració amb el camp de les Smart Grids (SGs); aquestes tecnologies son la Web of Things (WoT) i la Social ...
New chiral ligands in asymmetric catalysis. Application in stabilization of metal nanoparticles
Tesi Doctoral M. Rosa Axet<br/><br/>La tesi consta del desenvolupament i aplicació de lligands difosfit derivats de carbohidrats a la reacció d'hidroformilació i hidrogenació catalitzada per rodi. També s'ha estudiat la ...
A new classification of gamma-ray bursts and its cosmological implications
Los estallidos de rayos gamma (del inglés gamma-ray bursts o GRBs para abreviar) se han clasificado tradicionalmente en GRBs cortos y duros, y GRBs largos y blandos, de acuerdo a la distribución biomodal de sus duraciones. ...
New clinical trial designs applied to the study of orphan and rare diseases: feasibility of methodological guidance to clinical development of new treatments from a regulatory perspective
Las incertidumbres reguladoras asociadas a las autorizaciones de comercialización de medicamentos huérfanos con frecuencia se relacionan con la realización de desarrollos clínicos poco convencionales, obstaculizados por ...
New clinico-pathological findings and prognostic factors of canine leishmaniasis in endemic and nonendemic areas
Canine Leishmaniasis (CanL) is due to Leishmania infantum (syn. Leishmania chagasi) and is endemic in Mediterranean countries, Portugal, Latin America and Southern Asia. In the last few decades, imported and even autochthonous ...
New colonial rescue. Appropriating a feminist discourse in the war on terror
Esta tesis es un análisis crítico del discurso de la Guerra contra el Terrorismo (GCT) y la representación de las mujeres del Oriente Medio (OM). Mi tesis se resume en que este discurso ha esencializado las mujeres del OM ...
New Computational Methods for Automated Large-Scale Archaeological Site Detection
Aquesta tesi doctoral presenta una sèrie d'enfocaments, fluxos de treball i models innovadors en el camp de l'arqueologia computacional per a la detecció automatitzada a gran escala de jaciments arqueològics. S'introdueixen ...
New computational methods for structural modeling protein-protein and protein-nucleic acid interactions
[eng] The study of the 3D structural details of protein-protein and protein-DNA interactions is essential to understand biomolecular functions at the molecular level. Given the difficulty of the structural determination ...
New concepts for electrical detection of biomolecules
Aquest treball discuteix difrerents aspects relacionats amb el disseny de sensors i sistemes de biodetecció. Descriu la fabricació i caracterització de transductors electrics particulars, així com el desenvolupament de ...
New contributions to algorithms and tools for the analysis of photometric and spectroscopic time-series in exoplanet searches
The current trend in exoplanet research focuses on the detection and characterisation of Earth-sized planets, and the study of their potential subtle and tenuous atmospheres. The aim of this thesis is the development of ...
New contributions to the ecology of gelatinous zooplankton in the Western Mediterranean: abundance, distribution and diversity
[eng] Gelatinous zooplankton has been studied in the Western Mediterranean for a long time, however, its spatial structure has been mainly addressed in coastal areas, during spring and summer periods. Hence, information ...
New contributions to the preparation of compounds derived from L-cysteine with biological activity
Una gran varietat de productes naturals i fàrmacs que inclouen sofre en les seves estructures presenten diverses activitats biològiques i aplicacions. Un exemple és la L-cisteïna, un aminoàcid essencial necessari en processos ...
