Testing for the zero‐altered Poisson distribution with positive data
Statistica Neerlandica, Volume 79, Issue 3, August 2025.ABSTRACT This article proposes three new goodness‐of‐fit tests for the zero‐altered Poisson distribution, or equivalently for the positive Poisson distribution, based on positive data, that is, data truncated at 0, whose test statistic is built using a characterization of this law.
M.D. Jiménez‐Gamero +2 more
wiley +1 more source
Una investigación sobre competencias docentes [PDF]
, 2007 En el trabajo que se presenta se analizan las concepciones de los docentes que cursan un taller de Postítulo en Matemática y Estadística en relación al rol del problema matemático en la enseñanza.
Anido, Mercedes, Guzmán, Martha
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Tropical Medicine &International Health, Volume 30, Issue 7, Page 694-703, July 2025.Abstract Background The coronavirus disease‐19 (COVID‐19) pandemic has affected global health, influencing the prevalence of different respiratory pathogens. The aim of this study is to evaluate the distribution of agents causing acute respiratory infections in children under 5 years old before and after the COVID‐19 pandemic in Praia, Cabo Verde, and ...
Wilson Correia +5 more
wiley +1 more source
Topological Entropy of Cournot-Puu Duopoly
Discrete Dynamics in Nature and Society, 2010 The aim of this paper is to analyze a classical duopoly model introduced by Tönu Puu in 1991. For that, we compute the topological entropy of the model and characterize those parameter values with positive entropy.
Jose S. Cánovas, David López Medina
doaj +1 more source
On a Variational Method for Stiff Differential Equations Arising from Chemistry Kinetics
Mathematics, 2019 For the approximation of stiff systems of ODEs arising from chemistry kinetics, implicit integrators emerge as good candidates. This paper proposes a variational approach for this type of systems.
Sergio Amat +2 more
doaj +1 more source
Una experiencia en la capacitación de profesores: proyecto de seguimiento de la impartición de los cursos de estadística, bajo el esquema del nuevo modelo curricular del área de ciencias sociales de la Universidad de Sonora [PDF]
, 2009 En el presente escrito, se describe el desarrollo, así como los productos obtenidos en un proyecto de investigación institucional, titulado “Seguimiento de la impartición de los cursos de estadística, bajo el esquema del nuevo modelo curricular, del área
Figueroa, Gudelia, Larios, Irma Nancy
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Bird–window collisions: A comprehensive dataset for the Neotropical region
Ecology, Volume 106, Issue 6, June 2025.Abstract Our primary objective was to compile a comprehensive dataset on bird–window collisions throughout the Neotropical region, including both published and unpublished sources. On May 12, 2020, we extensively disseminated invitations to provide data via email and social media platforms.
Augusto João Piratelli +133 more
wiley +1 more source
Describing the Dynamics and Complexity of Matsumoto-Nonaka's Duopoly Model
Abstract and Applied Analysis, 2013 We study the duopoly model proposed by Matsumoto and Nonaka (2006), in which two firms produce two complementary goods, and there are externalities of different signs.
Jose S. Cánovas +1 more
doaj +1 more source
A Method for Ordering of LR-Type Fuzzy Numbers: An Important Decision Criteria
Axioms, 2016 Methods for ordering fuzzy numbers play an important role as decision criteria, with applications in areas such as optimization and data mining, among others. Although there are several proposals for ordering methods in the fuzzy literature, many of them
José A. González Campos +1 more
doaj +1 more source
Aprendizaje de la estadística descriptiva en contextos de vulnerabilidad: una relación entre lo socio-cultural y la matemática escolar [PDF]
, 2009 El trabajo centrado en la estadística descriptiva desde una perspectiva socio-cultural tiene el fin de que los estudiantes establezcan relaciones de la matemática escolar para interpretar y leer el mundo; es decir, para que los niños en los conjuntos de ...
Tamayo, Carolina
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