Now showing items 21-40 of 201

    • Chronicle of an early demise, surname extinction in the fifteenth and the seventeenth centuries 

      Jordà, Joan Pau; Ameijeiras Alonso, José; Pujadas Mora, Joana Maria (Taylor & Francis, 2018)
      It has been amply demonstrated that individuals' reproductive capability is the key explanatory phenomenon for understanding onomastic disappearance during the early modern period. This article analyzes the evolution and ...
    • Ciclo de vida organizacional. Unha revisión teórica 

      Hurtado Torres, Nuria Esther; Maraver Tarifa, Guillermo; Senise Barrio, María Eugenia (Universidade de Santiago de Compostela. Servizo de Publicacións e Intercambio Científico, 1996)
    • A circular nonhomogeneous hidden Markov field for the spatial segmentation of wildfire occurrences 

      Ameijeiras Alonso, José; Lagona, Francesco; Crujeiras Casais, Rosa María (Wiley, 2019)
      Motivated by studies of wildfire seasonality, we propose a nonhomogeneous hidden Markov random field to model the spatial distribution of georeferenced fire occurrences during the year, by representing occurrence times as ...
    • A Clustering Perspective of the Collatz Conjecture 

      Tenreiro Machado, José António; Galhano, Alexandra; Cao Labora, Daniel (MDPI, 2021)
      This manuscript focuses on one of the most famous open problems in mathematics, namely the Collatz conjecture. The first part of the paper is devoted to describe the problem, providing a historical introduction to it, as ...
    • Computation of Green’s functions through algebraic decomposition of operators 

      Fernández Tojo, Fernando Adrián (Springer International Publishing, 2016-09-13)
      In this article, we use linear algebra to improve the computational time for obtaining Green’s functions of linear differential equations with reflection (DER). This is achieved by decomposing both the ‘reduced’ equation ...
    • Constant sign solution for a simply supported beam equation 

      Cabada Fernández, Alberto; Saavedra López, Lorena (University of Szeged, 2017)
      The aim of this paper is to ensure the existence of constant sign solutions for the fourth order boundary value problem. This problem models the behavior of a suspension bridge assuming that the vertical displacement ...
    • Constant Sign Solutions to Linear Fractional Integral Problems and Their Applications to the Monotone Method 

      Cao Labora, Daniel; Rodríguez López, Rosana (MDPI, 2020)
      This manuscript provides some results concerning the sign of solutions for linear fractional integral equations with constant coefficients. This information is later used to prove the existence of solutions to some ...
    • Controllability of nonlinear fractional delay dynamical systems with prescribed controls 

      Ding, Xiao-Li; Nieto Roig, Juan José (Vilnius University Press, 2018)
      In this paper, we consider controllability of nonlinear fractional delay dynamical systems with prescribed controls. We firstly give the solution representation of the fractional delay dynamical systems using Laplace ...
    • A cota de erro na medida das audiencias 

      Mira Pérez, Jorge; Sánchez Sellero, César Andrés (Academia Galega do Audiovisual, 2008)
    • Cytokine-based Predictive Models to Estimate the Probability of Chronic Periodontitis: Development of Diagnostic Nomograms 

      Tomás Carmona, Inmaculada; Arias Bujanda, Nora Adriana; Alonso Sampedro, Manuela; Casares de Cal, María Ángeles; Sánchez Sellero, César Andrés; Suárez Quintanilla, David; Balsa Castro, Carlos (Springer Nature, 2017-10-14)
      Although a distinct cytokine profile has been described in the gingival crevicular fluid (GCF) of patients with chronic periodontitis, there is no evidence of GCF cytokine-based predictive models being used to diagnose the ...
    • Determining optimum wavelengths for leaf water content estimation from reflectance: A distance correlation approach 

      Ordóñez Galán, Celestino; Oviedo de la Fuente, Manuel; Roca Pardiñas, Javier; Rodríguez Pérez, José Ramón (Elsevier, 2018)
      This paper proposes a method to estimate leaf water content from reflectance in four commercial vineyard varieties by estimating the local maxima of a distance correlation function. First, it applies four different functional ...
    • Dimensionalidade da capacidade económica nas comarcas galegas 

      Iglesias Patiño, Carlos Luis; López Vizcaíno, María Esther; Sánchez Fernández, Patricio (Universidade de Santiago de Compostela, 2000)
      Neste artigo o obxectivo xeral que se establece é realizar unha análise exploratoria dun conxunto suficientemente amplo de variables que, nun primeiro momento, están relacionadas coa capacidade económica a nivel comarcal. ...
    • Displacement Calculus 

      Márquez Albés, Ignacio; Fernández Tojo, Fernando Adrián (MDPI, 2020)
      In this work, we establish a theory of Calculus based on the new concept of displacement. We develop all the concepts and results necessary to go from the definition to differential equations, starting with topology and ...
    • Dissipativity of Fractional Navier–Stokes Equations with Variable Delay 

      Liu, Lin F.; Nieto Roig, Juan José (MDPI, 2020)
      We use classical Galerkin approximations, the generalized Aubin–Lions Lemma as well as the Bellman–Gronwall Lemma to study the asymptotical behavior of a two-dimensional fractional Navier–Stokes equation with variable ...
    • DTDA: An R Package to Analyze Randomly Truncated Data 

      Moreira, Carla; Uña Álvarez, Jacobo de; Crujeiras Casais, Rosa María (Foundation for Open Access Statistics, 2010)
      In this paper, the R package DTDA for analyzing truncated data is described. This package contains tools for performing three different but related algorithms to compute the nonparametric maximum likelihood estimator of ...
    • Dynamic Analysis of a Two-Language Competitive Model with Control Strategies 

      Nie, Lin-Fei; Teng, Zhi-Dong; Nieto Roig, Juan José; Jung, Il Hyo (Hindawi Publishing, 2013)
      The dynamic behavior of a two-language competitive model is analyzed systemically in this paper. By the linearization and the Bendixson-Dulac theorem on dynamical system, some sufficient conditions on the globally asymptotical ...
    • Effectiveness of a Psychosocial Therapy with SMS in Immigrant Women with Different Degrees of Depression 

      García Vázquez, Yolanda; Ferrás Sexto, Carlos; Ginzo Villamayor, María José (MDPI, 2020)
      Immigrant women who are forced to adapt to a new cultural context often live in low income situations, have informal jobs, and experience social inclusion difficulties; these women frequently have mental health and social ...
    • Empirical likelihood based testing for regression 

      Keilegom, Ingrid van; Sánchez Sellero, César Andrés; González Manteiga, Wenceslao (The Institute of Mathematical StatisticsThe Bernoulli Society, 2008)
      Consider a random vector (X, Y ) and let m(x) = E(Y |X = x). We are interested in testing H0 : m ∈ MΘ,G = {γ(·, θ, g) : θ ∈ Θ, g ∈ G} for some known function γ, some compact set Θ ⊂ IRp and some function set G of real ...
    • Energy, Production and Environmental Characteristics of a Conventional Weaned Piglet Farm in North West Spain 

      Fernández Rodríguez, María Dolores; Losada, Eugenio; Ortega Martínez, Juan Antonio; Arango López, Tamara; Ginzo Villamayor, María José; Besteiro Doval, Roberto; Lamosa Quinteiro, Santiago; Barrasa Rioja, Martín; Rodríguez Rodríguez, Manuel Ramiro (MDPI, 2020)
      Postweaning is one of the most sensitive and energy-demanding phases of swine production. The objective of this research was to assess the energy, production and environmental characteristics of a conventional farm with ...
    • Enrichment of rare genetic variants in astrocyte gene enriched co-expression modules altered in postmortem brain samples of schizophrenia 

      González Peñas, Javier; Costas Costas, Javier; Ginzo Villamayor, María José; Xu, Bin (Elsevier, 2019)
      The transcriptome profiles of the cingulate gyrus region from the postmortem brain tissues of a set of well-characterized patients with schizophrenia (SCZ) and matched controls were investigated using an integrated approach ...

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