Browsing by Subject "Biologia"
Now showing items 21-40 of 71
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Effectiveness of a new one-hour blood pressure monitoring method to diagnose hypertension: a diagnostic accuracy clinical trial protocol
(2019-05-01)
Article
Open AccessIntroduction 24-hour ambulatory blood pressure monitoring (ABPM) is the gold standard diagnostic method for hypertension, but has some shortcomings in clinical practice while clinical settings often lack sufficient devices ... -
Eigenanalysis analysis and metric multidimensional scaling on hierarchical structures
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1987)
Article
Open AccessThe known hierarchical clustering scheme is equivalent to the concept of ul- trametric distance. AII distance can be represented in a spatial model using multidimensional scaling. We relate both clases of representations ... -
El modelo evolutivo de Kimura, un enlace entre el álgebra, la biología i la estadística
(Real Sociedad Matemática Española, 2018-06-01)
Article
Open AccessEl álgebra y la estadística han estado presentes en biología evo- lutiva desde sus inicios. En este artículo mostramos una pequeña parte de la interrelación entre el álgebra, la estadística y la biología evolutiva centrándonos ... -
Estimation of synaptic conductances using control theory
(Universitat Politècnica de Catalunya, 2020-10)
Master thesis
Open AccessUnveiling the input a neuron receives and distinguishing between excitation and inhibition provides information on local connectivity and brain operating conditions. However, experimental techniques do not allow direct ... -
Estudi de fiabilitat i validació d’un score per avaluar la bronquiolitis en nens
(Universitat Politècnica de Catalunya, 2014-06)
Master thesis
Restricted access - author's decisionActualment no existeix un gold estàndard per valorar el pronòstic ni la gravetat de la bronquiolitis, tot hi que resultaria molt útil per optimitzar l assistència clínica. En el present treball es va avaluar si l score ... -
Force transduction and lipid binding in MscL: a continuum-molecular approach
(2014-12-01)
Article
Open AccessThe bacterial mechanosensitive channel MscL, a small protein mainly activated by membrane tension, is a central model system to study the transduction of mechanical stimuli into chemical signals. Mutagenic studies suggest ... -
Front propagation speeds of T7 virus mutants
(2015-11)
Article
Open AccessWe propose a new reaction-diffusion model with an eclipse time to study the spread of viruses on bacterial populations. This new model is both biologically and physically sound, unlike previous ones. We determine important ... -
Hybrid cell-centred/vertex model for multicellular systems with equilibrium-preserving remodelling
(John Wiley & sons, 2018-03)
Article
Open AccessWe present a hybrid vertex/cell-centred model for mechanically simulating planar cellular monolayers undergoing cell reorganisation. Cell centres are represented by a triangular nodal network, while the cell boundaries are ... -
Hypergravity induces changes in physiology, gene expression and epigenetics in zebrafish
(Universitat Politècnica de Catalunya, 2022-04-29)
Conference lecture
Open AccessAll living organisms that inhabit Earth have evolved under a common value of gravity, which amounts to an acceleration of 9.81 m/s2 at mean sea level. Changes on it could cause important alterations that affect vital ... -
Impacto del bilingüismo en el rendimiento cognitivo y en la estructura cerebral de personas sanas a riesgo de padecer la enfermedad de Alzheimer
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-06)
Master thesis
Restricted access - author's decision
Covenantee: Btech Technical CenterUno de cada tres casos de enfermedad de Alzheimer (EA) es atribuible a factores que son modificables y, en consecuencia, potencialmente evitables. Adicionalmente existen una serie de variables asociadas con la formación ... -
Inverting angiogenesis with interstitial flow and chemokine matrix-binding affinity
(Nature, 2022-05-10)
Article
Open AccessThe molecular signaling pathways that orchestrate angiogenesis have been widely studied, but the role of biophysical cues has received less attention. Interstitial flow is unavoidable in vivo, and has been shown to ... -
La investigació ambiental dels brots de legionel·losi a l'Hospitalet de Llobregat en el període 2016-21
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2022-06)
Master thesis
Open Access
Covenantee: Universitat de BarcelonaLa legionel·losi és una malaltia produïda per un bacteri anomenat legionel·la que es contrau en inhalar vapor o aerosols d'aigua contaminada. Actualment és un problema de salut pública sobretot, per la seva presentació en ... -
Lung cancer immunophenotyping with CT- radiomics
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2022-06)
Master thesis
Open Access
Covenantee: Vall d'Hebron Institut d’OncologiaThis master thesis has two aims. The first main objective is to study and obtain robust voxel-wise (3D) radiomic features for lung cancer and with them compute the habitats (unsupervised clusters) to unravel tumor heterogeneity ... -
Machine learning for cancer classification
(Universitat Politècnica de Catalunya, 2018-10)
Master thesis
Restricted access - author's decision
Covenantee: Centre de Regulació Genòmica. Departament de Teoria del Senyal i ComunicacionsIn this thesis, we used support vector machines (SVMs) to build a tissue-of-origin classifier of 17 cancer types. Our classifier, which uses RNA expression data from over 20000 genes, works with high accuracy on primary ... -
Macroscopic limit of a kinetic model describing the switch in T cell migration modes via binary interactions
(2021-12-23)
Article
Open AccessExperimental results on the immune response to cancer indicate that activation of cytotoxic T lymphocytes (CTLs) through interactions with dendritic cells (DCs) can trigger a change in CTL migration patterns. In particular, ... -
Mathematical modeling of calcium handling dysfunctions leading to atrial fibrillation
(Universitat Politècnica de Catalunya, 2017-10)
Master thesis
Open AccessThe aim of this master s thesis is to study the basic cardiac cellular electrophysiology in order to understand and examine the role of SK3 channels. Among the many channels present in an atrial myocyte, SK3 channels are ... -
Maximum-likelihood estimation of the geometric niche preemption model
(2021-12)
Article
Open AccessThe geometric series or niche preemption model is an elementary ecological model in biodiversity studies. The preemption parameter of this model is usually estimated by regression or iteratively by using May’s equation. ... -
Mechanotransmission of haemodynamic forces by the endothelial glycocalyx in a full-scale arterial model
(2019-06-05)
Article
Open AccessThe glycocalyx has been identified as a key mechano-sensor of the shear forces exerted by streaming blood onto the vascular endothelial lining. Although the biochemical reaction to the blood flow has been extensively ... -
Mining the integrated connectedness of biomedical systems
(Barcelona Supercomputing Center, 2018)
Conference report
Open Access -
Modeling and analysis of longitudinal data in clinical trials. Code of analysis implemented in R
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-10)
Master thesis
Restricted access - author's decisionEn este trabajo hemos analizado un estudio de cohorte de pacientes de VIH, se ha realizado todo el proceso de gestión de datos y estadístico necesario. Se han realizado análisis descriptivos, análisis de supervivencia y ...