Pedro Bernal | Universidad Nacional de Colombia (National University of Colombia) (original) (raw)
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Papers by Pedro Bernal
Revista Med, Dec 1, 2010
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Acta Medica Colombiana, Jan 28, 2013
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Revista Colombiana De Cardiologia, Oct 1, 2012
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Revista Med, Dec 1, 2011
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Revista Colombiana De Cardiologia, Oct 1, 2012
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Revista De La Academia Colombiana De Ciencias Exactas Fisicas Y Naturales, Mar 1, 2011
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Revista Colombiana De Cardiologia, Jun 1, 2007
página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. experimental, ... more página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. experimental, Documentos relacionados. Id: 469036. Autor: Rodríguez, Javier; Prieto, Signed; Ortiz, Liliana; Correa, Catalina; Álvarez T., Luisa; Bernal, Pedro; Casadiego, Elkin. ...
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Revista Med, 2015
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Revista Med, Jun 1, 2013
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Revista Colombiana De Cardiologia, Apr 1, 2008
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Revista Med, Dec 1, 2011
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Revista Cubana De Ortopedia Y Traumatologia, Jun 1, 2014
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Revista Med, Jun 1, 2013
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Revista De La Academia Colombiana De Ciencias Exactas Fisicas Y Naturales, 2012
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Revista Med, 2013
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Revista de la Facultad de Medicina, Universidad Nacional de Colombia
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Revista Colombiana de Cardiologia
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Acta médica colombiana: AMC: organo de la Asociación Columbiana de Medicina Interna
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Revista Colombiana de Cardiologia
The characterization of state and evolution of systems are described by the theory of dynamic sys... more The characterization of state and evolution of systems are described by the theory of dynamic systems. Chaotic systems may be evaluated through fractal dimensions. 17 Holter were studied, four of which were diagnosed as normal and 13 with different diseases. A sequence of values of heart rate was generated from the values obtained in the clinical examination. For each simulation, an attractor was built; its fractal dimension was evaluated as well as the spaces occupied by the attractor, and finally comparisons between normality and disease, were made. Acute chaotic cardiac dynamics were differentiated from chronic and normal with measure parameters related with fractal dimension. Maximal values in spatial occupation of attractors associated to acute clinical events were found by the application of the Box Counting method. The spaces evaluated for the attractors of individuals with acute clinical events are a third of the normal ones. According to this methodology, the totality of ca...
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Revista Med, Dec 1, 2010
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Acta Medica Colombiana, Jan 28, 2013
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Revista Colombiana De Cardiologia, Oct 1, 2012
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Revista Med, Dec 1, 2011
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Revista Colombiana De Cardiologia, Oct 1, 2012
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Revista De La Academia Colombiana De Ciencias Exactas Fisicas Y Naturales, Mar 1, 2011
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Revista Colombiana De Cardiologia, Jun 1, 2007
página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. experimental, ... more página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. experimental, Documentos relacionados. Id: 469036. Autor: Rodríguez, Javier; Prieto, Signed; Ortiz, Liliana; Correa, Catalina; Álvarez T., Luisa; Bernal, Pedro; Casadiego, Elkin. ...
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Revista Med, 2015
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Revista Med, Jun 1, 2013
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Revista Colombiana De Cardiologia, Apr 1, 2008
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Revista Med, Dec 1, 2011
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Revista Cubana De Ortopedia Y Traumatologia, Jun 1, 2014
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Revista Med, Jun 1, 2013
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Revista De La Academia Colombiana De Ciencias Exactas Fisicas Y Naturales, 2012
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Revista Med, 2013
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Revista de la Facultad de Medicina, Universidad Nacional de Colombia
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Revista Colombiana de Cardiologia
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Acta médica colombiana: AMC: organo de la Asociación Columbiana de Medicina Interna
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Revista Colombiana de Cardiologia
The characterization of state and evolution of systems are described by the theory of dynamic sys... more The characterization of state and evolution of systems are described by the theory of dynamic systems. Chaotic systems may be evaluated through fractal dimensions. 17 Holter were studied, four of which were diagnosed as normal and 13 with different diseases. A sequence of values of heart rate was generated from the values obtained in the clinical examination. For each simulation, an attractor was built; its fractal dimension was evaluated as well as the spaces occupied by the attractor, and finally comparisons between normality and disease, were made. Acute chaotic cardiac dynamics were differentiated from chronic and normal with measure parameters related with fractal dimension. Maximal values in spatial occupation of attractors associated to acute clinical events were found by the application of the Box Counting method. The spaces evaluated for the attractors of individuals with acute clinical events are a third of the normal ones. According to this methodology, the totality of ca...
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