Universitat de Barcelona
Now showing items 2924-2943 of 11039
[eng] The principal challenge of conserving marine megaherbivores is that they typically range over extensive areas that far exceed the spatial scales of conventional management, transcending protected areas, and often ...
The pathogenic strains of Escherichia coli can be divided into two large groups: those that cause intestinal infections and those that cause extra- intestinal infections. The strains that belong to the first group are ...
Codification of genetic information; regulation of gene expression; transport of nutrients inside cells; immune protection against infectious agents; transduction of external signals... These are some of the crucial processes ...
Our main goal is to study certain aspects of the dynamics of fluids with magnetic particles in suspension, based on their promising practical applications as new materials as welI as on its fundamental scientific interest. In ...
Star formation is a fundamental and still largely unsolved problem of astrophysics and cosmology. Its complexity stems from the complex interaction of turbulence, magnetic fields and gravity, and from the onset of different ...
L’objectiu d’aquesta tesi és afegir una petita fulla a l’arbre del coneixement. En particular a la branca del sistemes dinàmics. La teoria de sistemes dinàmics és la branca de les matemàtiques que estudia l’evolució del ...
This thesis was part of the European consortium MESOBRAIN, a team of 5 organizations that joined efforts in nanofabrication, cell culturing, imaging and data analysis to build tailored human 3D networks. The thesis timing ...
Collapse calderas are defined as the volcanic depression that result from the disruption of the geometry of the magma chamber roof due to down faulting during the course of an eruption. These structures have received ...
Cells, either as unicellular organisms or as part of a tissue of a multicellular organism, can acquire different functions thanks to their capability of changing their expression state. The enzyme synthesis, cell division ...
Helium is the second lightest element and the second most abundant element in the universe. It is named for the Greek god of the sun, Helios, and it was first discovered by French astronomer Jules Janssen as an unknown ...
Spontaneous activity in the cerebral cortex changes in different brain states. During desynchronized brain states (e.g. wakefulness, REM sleep), populations of neurons in the cerebral cortex fire action potentials in a ...
It is estimated that within a few years chronic obstructive pulmonary disease (COPD) will be the third leading cause of death worldwide. The morbidity and mortality associated with COPD are due, in part to acute exacerbation ...
The objective of this thesis is to study the first-order dynamics of subduction systems characterized by opposite dip polarity in adjacent plate segments. The absence of previous studies analyzing the geodynamic evolution ...
The El Niño-Southern Oscillation (ENSO) is a natural mode of climate variability in the tropical Pacific, which not only perturbs the local atmosphere, but whose impacts can also reach remote, extra-tropical regions through ...
El present estudi pretén analitzar el procés de conformació política d’una comunitat local a l’edat mitjana. Tal com la historiografia ha posat de manifest, poden ser diversos els factors que intervenen en la consolidació ...
E-grocery shopping is increasingly popular, but a significant part of the food products available online do not comply with food law requirements. The official control systems designed by Member States on the basis of the ...
E-glass fiber-reinforced composites (FRC) have become popular in dental and medical applications for load-bearing applications. This is due to their enhanced biomechanical matching with living tissues compared to traditional ...
In the behavioral sciences, the concept of phenotypic plasticity can be roughly categorized into two classes: developmental and activational plasticity. Developmental plasticity denotes the capacity of an individual carrying ...
Countless environmental aggressors could damage the integrity of tissues and organs. In humans, the limited regenerative ability prevents often the recovery of injured tissues, but this is not the case of the fruit fly ...
Macrophages are key regulators of immune system connecting innate and specific immune responses. Macrophages proliferate in presence of their growth factor, M-CSF. The addition of bacterial lipopolysacharide, LPS, induces ...
