Universitat de Barcelona
Now showing items 3180-3199 of 11039
[eng] The overall objective of this thesis is to explore the effects of DD on C cycling in reservoirs because there are many dams under removal and many more predicted in the near future. To answer this question, we conducted ...
[eng] INTRODUCTION: Metabolic syndrome (MetS) is a clustering of different cardiovascular and cardiometabolic risk factors. In developed countries, MetS prevalence has risen to 20- 25% in the adult population, and its ...
This thesis focuses on different spatial issues in relation to the commonest weed species (<i>Avena sterilis</i> L. and <i>Lolium rigidum</i> Gaudin) in dryland cereal crops.<br/>A 3-year detailed study of <i>L. rigidum</i> ...
A central theme in ecology and evolution is to understand whether and how species respond to environmental changes. The amount of studies focusing on how species might cope with climate change has been steeply growing, ...
The overarching aim of my thesis was to assess the role of environmental variability and specially of perturbations in the population dynamics of social vertebrates. Our results emphasize the need to collect individual, ...
Inland waters are active components of the global carbon (C) cycle that transform, store and outgas more than half of the C they receive from adjacent terrestrial ecosystems. However, fundamental uncertainties regarding ...
Water availability is the primary driver of dissolved organic matter (DOM) dynamics in intermittent rivers and ephemeral streams (IRES). Therefore, current research manifests the global influence of flow disruption on ...
Intermittent rivers and ephemeral streams (IRES) are watercourses that naturally and periodically cease to flow. They represent more than half of the global river network and are expanding due to global change. In this ...
Human activities have increased dissolved inorganic nitrogen (DIN) availability and modified the relative proportion of DIN as NO3- or NH4+ in running waters. Because nitrogen (N) is an essential element for in-stream ...
[eng] Albumin exerts pleiotropic actions beyond its oncotic power, which include binding, transport and detoxification of endogenous and exogenous molecules, antioxidant activity and the modulation of immune and inflammatory ...
Parenteral nutrition-associated liver dysfunction (PNALD) is one of the most severe long-term parenteral nutrition complications, which was attributed to the phytosterols, found in vegetable oil based lipid emulsions (LE). ...
Les cèl·lules estan exposades a diferents estímuls mecànics al llarg de la seva vida. Actualment s'accepta que les forces mecàniques juguen un paper important en funcions crítiques cel·lulars com ara la proliferació, ...
Los sistemas de reacción-difusión donde el proceso difusivo es la etapa lenta están controlados, a bajas dimensionalidades, por las fluctuaciones en las distribuciones iniciales de reactivos. Concretamente, estos sistemas ...
Intestinal cells self-organize into 3-dimensional (3D) organoids that recapitulate the in vivo structural and functional characteristics when embedded in a 3D cell-derived protein mixture (Matrigel). However, these very ...
In this thesis we study the effects of the dipole-dipole interaction on the physics of ultracold quantum gases, both bosonic and fermionic, within the theoretical framework provided by the mean-field regime. This kind of ...
Cardiovascular diseases are the main cause of death worldwide and a relevant source of economic cost and physical disability. The Mediterranean Diet, associated with a high intake of virgin olive oil, has been shown to be ...
Nuclear receptors are a superfamily of ligand-dependent transcription factors that are involved in numerous biological processes in homeostasis and disease. Liver X receptors (LXRs) are members of the nuclear receptors ...
There is a consensus that CVD has been the leading cause of death worldwide in recent decades, and it is predicted that will raise from 17.5 million in 2012 to 22.2 million in 2030. Besides, CVD is a heavy economic burden ...
[eng] Many times machine learning is casted as an optimization problem. This is the case when an objective function assesses the success of an agent in a certain task and hence, learning is accomplished by optimizing that ...
INTRODUCCIÓN: El parto normal se define como el conjunto de fenómenos que conducen a la expulsión del feto y de los anejos ovulares. La posición óptima de la cabeza fetal para el parto es la que sitúa la parte posterior ...
