Now showing items 1-16 of 16

  • An approach to disaggregating total household water consumption into major end-uses 

    Fontdecaba Rigat, Sara; Sánchez Espigares, Josep Anton; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Cabrespina, Francesc; Zubelzu, Jordi (2013-01-27)
    Article
    Restricted access - publisher's policy
    The aim of this project is to assign domestic water consumption to different devices based on the information provided by the water meter. We monitored a sample of Barcelona and Murcia with flow switches that recorded ...
  • A stochastic linear model to evaluate the dielectric constant-electrical conductivity relation of a sandy soil using TDR records 

    Aljoumani, Basem; Sánchez Espigares, Josep Anton; Wessolek, G. (2018)
    Conference report
    Restricted access - publisher's policy
    Despite the importance of evaluating soil pore water electrical conductivity from soil bulk electrical conductivity in ecological and hydrological applications, it still has not been worked out very well. This study was ...
  • Brassica aphid (Hemiptera: Aphididae) populations are conditioned by climatic variables and parasitism level: a study case of Triângulo Mineiro, Brazil 

    Sampaio, M. V.; Korndörfer, A. P.; Pujade Villar, Juli; Hubaide, J.E.A.; Ferreira, S. E.; Arantes, S. O.; Bortoletto, D. M.; Guimarães, C. M.; Sánchez Espigares, Josep Anton; Caballero López, Berta (2017-03-20)
    Article
    Restricted access - publisher's policy
    Cosmopolitan pests such as Brevicoryne brassicae, Lipaphis pseudobrassicae, and Myzus persicae (Aphididae) cause significant damage to Brassicaceae crops. Assessment of the important biotic and abiotic factors that regulate ...
  • Contagion between United States and european markets during the recent crises 

    Muñoz Gracia, María del Pilar; Márquez Cebrián, Dolores; Sánchez Espigares, Josep Anton (2011-07)
    Article
    Open Access
    The main objective of this paper is to detect the existence of financial contagion between the North American and European markets during the recent crises. To accomplish this, the relationships between the US and the Euro ...
  • Disseny i implementació d’un cas pràctic d’introducció a l’estadística basat en la presa de decisions realistes sobre dades simulades 

    Tort-Martorell Llabrés, Xavier; Camps Lorente, Oriol; Grima Cintas, Pedro; Marco Almagro, Lluís; Puig Oriol, Xavier; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Riba Civil, Alexandre; Berenguer Guerra, Victor; Jurado Margarit, Adriana; Magriñà Amat, Carlos (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
    Conference report / Conference lecture
    Open Access
    Un diagnòstic de les pràctiques d'estadística va portar a proposar per a una nova assignatura un joc competitiu en línia de presa de decisions basades en l'estadística. Aquest utilitza dades simulades i un web en què ...
  • Elaboració de material docent per a assignatures d'estadística industrial 

    Marco Almagro, Lluís; Grima Cintas, Pedro; Rodero de Lamo, Lourdes; Tort-Martorell Llabrés, Xavier; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Valls i Colom, Moisès; Corredoira González, Laura; Clot Razquin, Guillem; Fontdecaba Rigat, Sara (2009-02-12T13:11:17Z)
    Conference lecture / Conference report
    Open Access
    La finalitat del projecte és elaborar material d'ajuda i suport a la docència per assignatures relacionades amb l'estadística industrial. Ens centrem fonamentalment en les assignatures “Mètodes estadístics de l’enginyeria ...
  • Estimating pore water electrical conductivity of sandy soil from time domain reflectometry records using a time-varying dynamic linear model 

    Aljoumani, Basem; Sánchez Espigares, Josep Anton; Wessolek, Gerd (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-13)
    Article
    Open Access
    Despite the importance of computing soil pore water electrical conductivity (sp) from soil bulk electrical conductivity (sb) in ecological and hydrological applications, a good method of doing so remains elusive. The ...
  • Graphical comparison of normality tests for unimodal distribution data 

    Sánchez Espigares, Josep Anton; Grima Cintas, Pedro; Marco Almagro, Lluís (2019-01-02)
    Article
    Restricted access - publisher's policy
    A methodology is proposed to compare the power of normality tests with a wide variety of alternative unimodal distributions. It is based on the representation of a distribution mosaic in which kurtosis varies vertically ...
  • Herbivores, saprovores and natural enemies respond differently to within-field plant characteristics of wheat fields 

    Caballero López, Berta; Blanco Moreno, José M.; Pujade Villar, Juli; Ventura, Daniel; Sánchez Espigares, Josep Anton; Sans Serra, Francesc Xavier (2016-05-26)
    Article
    Open Access
    Understanding ecosystem functioning in a farmland context by considering the variety of ecological strategies employed by arthropods is a core challenge in ecology and conservation science. We adopted a functional approach ...
  • Non linear statistical models to improve wind power forecasts 

    Muñoz Gracia, María del Pilar; Sánchez Espigares, Josep Anton; Márquez, M. Dolores (2013)
    Conference report
    Restricted access - publisher's policy
  • PRESTON: Juego competitivo online para el aprendizaje de la estadística 

    Camps Lorente, Oriol; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Puig Oriol, Xavier; Riba Civil, Alexandre (2013)
    Conference report
    Open Access
    Presentamos un caso de rediseño de las prácticas de una asignatura de estadística. Tras realizar un diagnóstico del diseño previo (teniendo en cuenta la introducción del EEES), se propuso un juego competitivo on-line de ...
  • The value of comparative research in major day surgery 

    Llop Girones, Alba; Vergara Duarte, Montserrat; Sánchez Espigares, Josep Anton; Tarafa, Gemma; Benach de Rovira, Joan (2017-05-19)
    Article
    Open Access
    Objective To measure time trends in major day surgery rates according to hospital ownership and other hospital characteristics among the providers of the public healthcare network of Catalonia, Spain. Method Data ...
  • Time series outlier and intervention analysis: Irrigation management influences on soil water content in silty loam soil 

    Basem, Aljoumani; Sánchez Espigares, Josep Anton; Cañameras Riba, Núria; Josa March, Ramon; Monserrat, Joaquim (2012-08)
    Article
    Restricted access - publisher's policy
    Understanding the field soil water regime is fundamental in scheduling irrigation as well as for monitoring water flow and solute transport. This study was carried out on variable interval irrigation and used time series ...
  • Transfer function and time series outlier analysis: modelling Soil salinity in loamy sand soil by including the influences of irrigation management and soil temperature 

    Aljoumani, Basem; Sánchez Espigares, Josep Anton; Cañameras Riba, Núria; Wessdek, Gerd; Josa March, Ramon (2017-12-13)
    Article
    Open Access
    In variable interval irrigation, simply including soil salinity data in the soil salinity model is not valid for making predictions, because changes in irrigation frequency must also be taken into account. This study on ...
  • Visualizing type II error in normality tests 

    Sánchez Espigares, Josep Anton; Grima Cintas, Pedro; Marco Almagro, Lluís (2018-01-26)
    Article
    Open Access
    A Skewed Exponential Power Distribution, with parameters defining kurtosis and skewness, is introduced as a way to visualize Type II error in normality tests. By varying these parameters a mosaic of distributions is built, ...
  • Weeds, aphids, and specialist parasitoids and predators benefeit differently from organic and conventional cropping of winter cereals 

    Caballero-López, Berta; Blanco-Moreno, José M.; Pérez-Hidalgo, Nicolás; Michelena-Saval, José M.; Pujade-Villar, Juli; Guerrieri, Emilio; Sánchez Espigares, Josep Anton; Sans, F. Xavier (2011-12-28)
    Article
    Restricted access - publisher's policy
    The aphid–natural enemy interaction in winter wheat fields constitutes a complex system that has been frequently studied because of its implication for biological control. However, not all of the aphids living in ...