This article provides a multidimensional study based on data and text mining of prosecuted disput... more This article provides a multidimensional study based on data and text mining of prosecuted disputes on water rights in Chile, and an analysis of the state’s capacity, particularly of the institutions related to water regulation. This study shows not only a substantial increase of legal disputes regarding water rights over the years (1981–2014), but also clear patterns in the geographic location of these conflicts, as well as in the types of legal actions, arguments and strategies used in their pursuit. Through a topic analysis, we find a growing diversification over time of the subjects contained in the legal claims, suggesting an increase in structure and complexity.
We have developed a new methodology for examining and extracting patterns from brain electric act... more We have developed a new methodology for examining and extracting patterns from brain electric activity by using data mining and machine learning techniques. Data was collected from experiments focused on the study of cognitive processes that might evoke different specific strategies in the resolution of math problems. A binary classification problem was constructed using correlations and phase synchronization between different electroencephalographic channels as characteristics and, as labels or classes, the math performances of individuals participating in specially designed experiments. The proposed methodology is based on using well-established procedures of feature selection, which were used to determine a suitable brain functional network size related to math problem solving strategies and also to discover the most relevant links in this network without including noisy connections or excluding significant connections.
RESUMEN Se presentó el caso de un paciente con enfermedad de Creutzfeldt-Jakob, con antecedentes ... more RESUMEN Se presentó el caso de un paciente con enfermedad de Creutzfeldt-Jakob, con antecedentes de enfermedad cerebrovascular isquémica previa y un cuadro típico de demencia, ataxia, mioclonías y cambios típicos en el electroencefalograma con ...
... Fidel Espinosa Rivera, I Marcia Hart Casares, II María del Carmen Halley Posada, I René Zamor... more ... Fidel Espinosa Rivera, I Marcia Hart Casares, II María del Carmen Halley Posada, I René Zamora Marín III. ... 9. Espinosa Rivera F, Hart Casares M, Mar, Halley Posada MC, Martínez Batista ML., Pardo Núñez A. Resistencia bacteriana de cepas aisladas en el Hospital "Hermanos ...
Computational and Mathematical Methods in Medicine, 2013
We address the problem of long-term dynamics of tuberculosis (TB) and latent tuberculosis (LTB) i... more We address the problem of long-term dynamics of tuberculosis (TB) and latent tuberculosis (LTB) in semiclosed communities. These communities are congregate settings with the potential for sustained daily contact for weeks, months, and even years between their members. Basic examples of these communities are prisons, but certain urban/rural communities, some schools, among others could possibly fit well into this definition. These communities present a sort of ideal conditions for TB spread. In order to describe key relevant dynamics of the disease in these communities, we consider a five compartments SEIR model with five possible routes toward TB infection: primary infection after a contact with infected and infectious individuals (fast TB), endogenous reactivation after a period of latency (slow TB), relapse by natural causes after a cure, exogenous reinfection of latently infected, and exogenous reinfection of recovered individuals. We discuss the possible existence of multiple en...
La nutrición es la base de la propia existencia. Todos los sistemas vivos necesitan de los alimen... more La nutrición es la base de la propia existencia. Todos los sistemas vivos necesitan de los alimentos y sus nutrimentos contenidos para poder garantizar funciones vitales. El metabolismo es la función biológica más importante, fuera de la cual no se puede hablar de existencia de vida. La ...
This article provides a multidimensional study based on data and text mining of prosecuted disput... more This article provides a multidimensional study based on data and text mining of prosecuted disputes on water rights in Chile, and an analysis of the state’s capacity, particularly of the institutions related to water regulation. This study shows not only a substantial increase of legal disputes regarding water rights over the years (1981–2014), but also clear patterns in the geographic location of these conflicts, as well as in the types of legal actions, arguments and strategies used in their pursuit. Through a topic analysis, we find a growing diversification over time of the subjects contained in the legal claims, suggesting an increase in structure and complexity.
We have developed a new methodology for examining and extracting patterns from brain electric act... more We have developed a new methodology for examining and extracting patterns from brain electric activity by using data mining and machine learning techniques. Data was collected from experiments focused on the study of cognitive processes that might evoke different specific strategies in the resolution of math problems. A binary classification problem was constructed using correlations and phase synchronization between different electroencephalographic channels as characteristics and, as labels or classes, the math performances of individuals participating in specially designed experiments. The proposed methodology is based on using well-established procedures of feature selection, which were used to determine a suitable brain functional network size related to math problem solving strategies and also to discover the most relevant links in this network without including noisy connections or excluding significant connections.
RESUMEN Se presentó el caso de un paciente con enfermedad de Creutzfeldt-Jakob, con antecedentes ... more RESUMEN Se presentó el caso de un paciente con enfermedad de Creutzfeldt-Jakob, con antecedentes de enfermedad cerebrovascular isquémica previa y un cuadro típico de demencia, ataxia, mioclonías y cambios típicos en el electroencefalograma con ...
... Fidel Espinosa Rivera, I Marcia Hart Casares, II María del Carmen Halley Posada, I René Zamor... more ... Fidel Espinosa Rivera, I Marcia Hart Casares, II María del Carmen Halley Posada, I René Zamora Marín III. ... 9. Espinosa Rivera F, Hart Casares M, Mar, Halley Posada MC, Martínez Batista ML., Pardo Núñez A. Resistencia bacteriana de cepas aisladas en el Hospital "Hermanos ...
Computational and Mathematical Methods in Medicine, 2013
We address the problem of long-term dynamics of tuberculosis (TB) and latent tuberculosis (LTB) i... more We address the problem of long-term dynamics of tuberculosis (TB) and latent tuberculosis (LTB) in semiclosed communities. These communities are congregate settings with the potential for sustained daily contact for weeks, months, and even years between their members. Basic examples of these communities are prisons, but certain urban/rural communities, some schools, among others could possibly fit well into this definition. These communities present a sort of ideal conditions for TB spread. In order to describe key relevant dynamics of the disease in these communities, we consider a five compartments SEIR model with five possible routes toward TB infection: primary infection after a contact with infected and infectious individuals (fast TB), endogenous reactivation after a period of latency (slow TB), relapse by natural causes after a cure, exogenous reinfection of latently infected, and exogenous reinfection of recovered individuals. We discuss the possible existence of multiple en...
La nutrición es la base de la propia existencia. Todos los sistemas vivos necesitan de los alimen... more La nutrición es la base de la propia existencia. Todos los sistemas vivos necesitan de los alimentos y sus nutrimentos contenidos para poder garantizar funciones vitales. El metabolismo es la función biológica más importante, fuera de la cual no se puede hablar de existencia de vida. La ...
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