Now showing items 13-24 of 39

    • A geometric approach to phase response curves and its numerical computation through the parameterization method 

      Pérez Cervera, Alberto; Martínez-Seara Alonso, M. Teresa; Huguet Casades, Gemma (2019-01-01)
      Article
      Open Access
      The phase response curve (PRC) is a tool used in neuroscience that measures the phase shift experienced by an oscillator due to a perturbation applied at different phases of the limit cycle. In this paper, we present a new ...
    • Rainbow factors in hypergraphs 

      Coulson, Matthew John; Keevash, Peter; Perarnau Llobet, Guillem; Yepremyan, Liana (2020-05-01)
      Article
      Open Access
      For any r-graph H, we consider the problem of finding a rainbow H-factor in an r-graph G with large minimum l-degree and an edge-colouring that is suitably bounded. We show that the asymptotic degree threshold is the same ...
    • An improved harmonic load flow formulation 

      Rashid, Asim; Mesas García, Juan José; Sainz Sapera, Luis (Taylor & Francis, 2019-10-21)
      Article
      Restricted access - publisher's policy
      The paper contributes an improved harmonic load flow formulation with fewer convergence problems but the same accurate results as traditional formulations. The proposed formulation approaches the harmonic load flow problem ...
    • A hybridizable discontinuous Galerkin phase-field model for brittle fracture with adaptive refinement 

      Muixí Ballonga, Alba; Rodríguez Ferran, Antonio; Fernández Méndez, Sonia (John Wiley & sons, 2020-03-30)
      Article
      Restricted access - publisher's policy
      In this paper, we propose an adaptive refinement strategy for phase-field models of brittle fracture, which is based on a novel hybridizable discontinuous Galerkin (HDG) formulation of the problem. The adaptive procedure ...
    • Euler flows and singular geometric structures 

      Miranda Galcerán, Eva; Cardona Aguilar, Robert; Peralta-Salas, Daniel (Royal Society, 2019)
      Article
      Open Access
      Tichler proved in [24] that a manifold admitting a smooth non vanishing and closed one-form bers over a circle. More generally a manifold admitting k independent closed one-forms bers over a torus Tk. In this article we ...
    • Constraint algorithm for singular field theories in the k-cosymplectic framework 

      Gràcia Sabaté, Francesc Xavier; Rivas Guijarro, Xavier; Román Roy, Narciso (American Institute of Mathematical Sciences, 2020-03-15)
      Article
      Restricted access - publisher's policy
      The aim of this paper is to develop a constraint algorithm for singular classical field theories in the framework of k-cosymplectic geometry. Since these field theories are singular, we need to introduce the notion of ...
    • Damage identification in structural health monitoring: a brief review from its implementation to the Use of data-driven applications 

      Tibaduiza Burgos, Diego Alexander; Gomez Vargas, Ricardo C.; Pedraza, Cesar; Agis Cherta, David; Pozo Montero, Francesc (Multidisciplinary Digital Publishing Institute (MDPI), 2020-01-29)
      Article
      Open Access
      The damage identification process provides relevant information about the current state of a structure under inspection, and it can be approached from two different points of view. The first approach uses data-driven ...
    • Associations between fine and coarse particles and mortality in Mediterranean cities: results from the MED-PARTICLES project 

      Samoli, Evangelia; Stafoggia, Massimo; Rodopoulou, Sophia; Ostro, Bart; Declercq, Christophe; Alessandrini, Ester; Díaz, Julio; Karanasiou, Angeliki; Kelessis, Apostolos G.; Le Tertre, Alain; Pandolfi, Paolo; Randi, Giorgia; Scarinzi, Cecilia; Zauli-Sajani, Stefano; Katsouyanni, Klea; Forastiere, Francesco; Study Group, MED-PARTICLES; Agis Cherta, David (National Institute of Environmental Health Sciences, 2013-08-01)
      Article
      Open Access
      Few studies have investigated the independent health effects of different size fractions of particulate matter (PM) in multiple locations, especially in Europe. We estimated the short-term effects of PM with aerodynamic ...
    • Association between long-term exposure to traffic-related air pollution and subclinical atherosclerosis: the REGICOR study 

      Rivera, Marcela; Basagaña Flores, Xavier; Aguilera, Inmaculada; Foraster, María; Agis Cherta, David; de Groot, Eric; Perez, Laura; Mendez, Michelle A.; Bouso, Laura; Targa, Jaume; Ramos, Rafael; Sala, Joan; Marrugat, Jaume; Elosua, Roberto; Künzli, Nino (National Institute of Environmental Health Sciences, 2013-02-01)
      Article
      Open Access
      Epidemiological evidence of the effects of long-term exposure to air pollution on the chronic processes of atherogenesis is limited. We investigated the association of long-term exposure to traffic-related air pollution ...
    • Structural stability of matrix pencils and matrix pairs under contragredient equivalence 

      García Planas, María Isabel; Klymchuk, Tetiana (2019-01-01)
      Article
      Restricted access - publisher's policy
      A complex matrix pencil A-¿B is called structurally stable if there exists its neighborhood in which all pencils are strictly equivalent to this pencil. We describe all complex matrix pencils that are structurally stable. ...
    • Short-term effects of particulate matter on mortality during forest fires in Southern Europe: results of the MED-PARTICLES Project 

      Faustini, Annunziata; Alessandrini, Ester R.; Pey, Jorge; Perez Lozano, Noemi; Samoli, Evangelia; Querol, Xavier; Cadum, Ennio; Perrino, Cinzia; Ostro, Bart; Ranzi, Andrea; Sunyer, Jordi; Stafoggia, Massimo; Forastiere, Francesco; study group, MED-PARTICLES; Agis Cherta, David (2015-04-14)
      Article
      Open Access
      An association between occurrence of wildfires and mortality in the exposed population has been observed in several studies with controversial results for cause-specific mortality. In the Mediterranean area, forest fires ...
    • Air pollution and atherosclerosis: a cross-sectional analysis of four European cohort studies in the ESCAPE study 

      Perez, Laura; Wolf, Kathrin; Hennig, Frauke; Penell, Johanna; Basagaña Flores, Xavier; Foraster, María; Aguilera, Inmaculada; Agis Cherta, David; Beelen, Rob; Brunekreef, Bert; Cyrys, Josef; Fuks, Kateryna B.; Adam, Martin; Baldassarre, Damiano; Cirach, Marta; Elosua, Roberto; Dratva, Julia; Hampel, Regina; Koenig, Wolfgang; Marrugat, Jaume; de Faire, Ulf; Pershagen, Göran; Probst-Hensch, Nicole M.; De Nazelle, Audrey; Nieuwenhuijsen, Mark J.; Rathmann, Wolfgang; Rivera, Marcela; Seissler, Jochen; Schindler, Christian; Thiery, Joachim; Hoffmann, Barbara; Peters, Annette; Künzli, Nino (National Institute of Environmental Health Sciences, 2015-06-01)
      Article
      Open Access
      In four European cohorts, we investigated the cross-sectional association between long-term exposure to air pollution and intima-media thickness of the common carotid artery (CIMT), a preclinical marker of atherosclerosi ...