Universitat de Barcelona
Now showing items 5529-5548 of 11095
Heteropteran bugs make an important contribution to the hyperdiversity of insects. As with other insect taxa, the proper species identification of heteropteran bugs requires diagnostic dichotomous keys. Faunistic studies ...
Helerotrophic (cetoenzymatic and respiratory activities) and autotrophic (photosynthetic activity) metabolism on epilithic strearn biofilms have been measured, analyzed and studied in this thesis.<br/><br/>The main objective ...
Los receptores de cannabinoides, CB1R y CB2R, que forman parte del sistema endocannabinoide, pertenecen a la superfamilia de receptores acoplados a proteína G (GPCR). El sistema endocannabinoide se encuentra estrechamente ...
Los receptores cannabinoides CB1R y CB2R son GPCRs que forman parte del sistema endocannabinoide y son considerados dianas potenciales para numerosas enfermedades. Su compleja farmacología junto con la naturaleza lipofílica ...
La desregulación de la transmisión dopaminérgica da lugar a la enfermedad de Parkinson. Los receptores de dopamina interaccionan con receptores tanto de la misma familia como con otros tipos de receptores, para formar ...
Los GPCRs son proteínas de membrana versátiles capaces de ser activadas por una amplia variedad de estímulos y son responsables de la transducción de señales extracelulares de manera específica. Regulan múltiples procesos ...
El Objetivo General de esta Tesis ha sido investigar la formación y función de heterómeros entre receptores de dopamina y otros receptores que puedan estar implicados en la regulación de la transmisión dopaminérgica, como ...
La modificació de les superfícies dels materials permet obtenir propietats diferents a les que presenta el substrat prèviament o preservar-lo del medi que l’envolta. Les tècniques emprades amb aquest objectiu són molt ...
L’objectiu del present treball ha consistit en l’obtenció i caracterització d’hidrogels i materials porosos d’àcid hialurònic (HA) entrecreuat amb butanediol diglicidil èter (BDDE) per a ser utilitzats com a sistemes ...
El Se és un micronutrient essencial que participa en diferents funcions en humans i en animals a través de la seva incorporació en forma de selenocisteïna (Sec) a les selenoproteïnes. Una ingesta inadequada de Se es considera ...
This thesis has as an objective the study of very energetic phenomena in the central regions of active galaxies. Intense star formation is triggered by mergers of galaxies, and the funneling of large quantities of gas ...
The high energy astrophysics, specifically the gamma-ray astrophysics, studies the processes that cannot be caused by hot matter but by other mechanisms colled non thermaland processes, which involve matter with energies ...
High-elevation and high-latitude ecosystems are expected to be especially vulnerable to global change. Dwarf shrub species cover extensive areas in high mountain ecosystems, and warmer temperatures and land-use change have ...
High-mountain ranges are suitable ecosystems for studying local environmental shifts driven by large-scale climate changes. Sedimentary records obtained from those regions contain information that allows to understand past ...
Gaia is an extremely ambitious astrometric space mission adopted within the scientific programme of the European Space Agency (ESA) in October 2000. It aims to measure with very high accuracy the positions, motions and ...
Macromolecular structure, and, specifically, its dynamics and flexibility, play a crucial role in its final biological function. Intense efforts are being made to obtain experimental information about macromolecular ...
[eng] Determining the acidity (pKa) and lipophilicity (log Po/w) of organic compounds is fundamental in analytical chemistry fields, with potential relevance in drug development, material science, analytical separation, ...
This thesis is devoted to the study of the optical and vibrational properties of indium nitride (InN) and indium gallium nitride (InGaN) at room and high-pressure conditions. For this purpose, we have employed spectroscopic ...
Multiple initiatives are being implemented to mitigate and, in the worst-case scenarios, adapt society to climate change. The vast majority consider renewable energies key to accomplishing a necessary transition from fossil ...
Global climate change effects on agroecosystems together with increasing world population is already threatening food security and endangering ecosystem stability. Meet global food demand with crops production under climate ...
