Luis Puerta - Academia.edu (original) (raw)
Papers by Luis Puerta
Opinion Juridica Publicacion De La Facultad De Derecho De La Universidad De Medellin, 2007
Palabras clave Responsabilidad contractual, adjudicación indebida de contratos, jurisprudencia de... more Palabras clave Responsabilidad contractual, adjudicación indebida de contratos, jurisprudencia del Consejo de Estado.
Universidad Empresa, 2010
Universidad Empresa, May 22, 2010
Las opiniones sólo comprometen a los autores y de ninguna manera a la Universidad del Rosario. Se... more Las opiniones sólo comprometen a los autores y de ninguna manera a la Universidad del Rosario. Se prohibe la reproducción total o parcial de los artículos incluidos en esta Revista, salvo autorización previa de los autores.
Wad Al Hayara Revista De Estudios De Guadalajara, 1987
Revista Facultad de Ingeniería
ABSTRACT
Liquid Crystals and Applications in Optics, 2007
We propose the use of low cost alphanumeric liquid crystal displays (LCD) not only as an educatio... more We propose the use of low cost alphanumeric liquid crystal displays (LCD) not only as an educational tool, to introduce students the insights of the electrooptic performance of liquid crystals, but also as a device able to be used in research to validate models describing the performance of LCDs and to be used in applications requiring monopixel optical modulation. High resolution LCDs have usually focused the research attention because of their capabilities to be used as SLMs. However low cost LCDs with a low number of pixels and directly addressed, such as segmented alphanumeric displays, may also be appealing devices. We show the characterization of one of the segments. The model applied had previously been demonstrated with high resolution LCDs, which are thin LCDs. The segmented LCD is found to be a thick LCD, thus, allowing us to verify the validity of the model in another range of conditions. Furthermore, we show that low cost alphanumeric LCDs can be used as monopixel LCDs. This is interesting since there are a number of applications, as in polarimetry or in interferometry, where monopixel LCDs may proof necessary. We optimize the modulation of the LCD both in the transmissive and in the reflective geometry to obtain amplitude-only and phase-only modulations which are useful for a number of applications.
Revista Clínica de Medicina de Familia, 2008
Page 1. Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve= 169614507002 Redal... more Page 1. Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve= 169614507002 Redalyc Sistema de Información Científica Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Puerta López-Cózar, José Luis ...
PLoS ONE, 2013
Trypanosoma cruzi, the etiologic agent of Chagas disease, is transmitted by hematophagous reduvii... more Trypanosoma cruzi, the etiologic agent of Chagas disease, is transmitted by hematophagous reduviid bugs within the subfamily Triatominae. These vectors take blood meals from a wide range of hosts, and their feeding behaviors have been used to investigate the ecology and epidemiology of T. cruzi. In this study we describe two PCR-based methodologies that amplify a fragment of the 16S mitochondrial rDNA, aimed to improve the identification of blood meal sources for Triatoma infestans: a.-Sequence analyses of two heminested PCRs that allow the identification of mammalian and avian species, and b.-restriction fragment length polymorphism (RFLP) analysis from the mammalian PCR to identify and differentiate multihost blood meals. Findings from both methodologies indicate that host DNA could be detected and the host species identified in samples from laboratory reared and field collected triatomines. The implications of this study are twofold. First, these methods can be used in areas where the fauna diversity and feeding behavior of the triatomines are unknown. Secondly, the RFLP method led to the identification of multi-host DNA from T. infestans gut contents, enhancing the information provided by this assay. These tools are important contributions for ecological and epidemiological studies of vector-borne diseases.
Revista Peruana de Biología, 2013
En este trabajo, se reúne la mayor información disponible acerca de los acantocéfalos encontrados... more En este trabajo, se reúne la mayor información disponible acerca de los acantocéfalos encontrados en el Perú y se incluyen nuevos huéspedes.
Medicina Clínica, 2009
Biblioteca de la Universidad Complutense de Madrid, Base de datos de artículos de revistas, ...
Este volumen presenta y analiza la forma como piensan y actúan dos gerentes colombianos: Luz Mary... more Este volumen presenta y analiza la forma como piensan y actúan dos gerentes colombianos: Luz Mary Guerrero Hernández, actual presidenta de Servientrega Ltda., y Carlos Hernán Peñaloza, exgerente del SENA. Su pensamiento y actuación es contrastado con el resultado de un análisis exhaustivo de marcos teóricos que permiten encontrar generalizaciones comparables con dicho pensamiento.
Opinion Juridica Publicacion De La Facultad De Derecho De La Universidad De Medellin, 2007
Palabras clave Responsabilidad contractual, adjudicación indebida de contratos, jurisprudencia de... more Palabras clave Responsabilidad contractual, adjudicación indebida de contratos, jurisprudencia del Consejo de Estado.
Universidad Empresa, 2010
Universidad Empresa, May 22, 2010
Las opiniones sólo comprometen a los autores y de ninguna manera a la Universidad del Rosario. Se... more Las opiniones sólo comprometen a los autores y de ninguna manera a la Universidad del Rosario. Se prohibe la reproducción total o parcial de los artículos incluidos en esta Revista, salvo autorización previa de los autores.
Wad Al Hayara Revista De Estudios De Guadalajara, 1987
Revista Facultad de Ingeniería
ABSTRACT
Liquid Crystals and Applications in Optics, 2007
We propose the use of low cost alphanumeric liquid crystal displays (LCD) not only as an educatio... more We propose the use of low cost alphanumeric liquid crystal displays (LCD) not only as an educational tool, to introduce students the insights of the electrooptic performance of liquid crystals, but also as a device able to be used in research to validate models describing the performance of LCDs and to be used in applications requiring monopixel optical modulation. High resolution LCDs have usually focused the research attention because of their capabilities to be used as SLMs. However low cost LCDs with a low number of pixels and directly addressed, such as segmented alphanumeric displays, may also be appealing devices. We show the characterization of one of the segments. The model applied had previously been demonstrated with high resolution LCDs, which are thin LCDs. The segmented LCD is found to be a thick LCD, thus, allowing us to verify the validity of the model in another range of conditions. Furthermore, we show that low cost alphanumeric LCDs can be used as monopixel LCDs. This is interesting since there are a number of applications, as in polarimetry or in interferometry, where monopixel LCDs may proof necessary. We optimize the modulation of the LCD both in the transmissive and in the reflective geometry to obtain amplitude-only and phase-only modulations which are useful for a number of applications.
Revista Clínica de Medicina de Familia, 2008
Page 1. Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve= 169614507002 Redal... more Page 1. Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve= 169614507002 Redalyc Sistema de Información Científica Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Puerta López-Cózar, José Luis ...
PLoS ONE, 2013
Trypanosoma cruzi, the etiologic agent of Chagas disease, is transmitted by hematophagous reduvii... more Trypanosoma cruzi, the etiologic agent of Chagas disease, is transmitted by hematophagous reduviid bugs within the subfamily Triatominae. These vectors take blood meals from a wide range of hosts, and their feeding behaviors have been used to investigate the ecology and epidemiology of T. cruzi. In this study we describe two PCR-based methodologies that amplify a fragment of the 16S mitochondrial rDNA, aimed to improve the identification of blood meal sources for Triatoma infestans: a.-Sequence analyses of two heminested PCRs that allow the identification of mammalian and avian species, and b.-restriction fragment length polymorphism (RFLP) analysis from the mammalian PCR to identify and differentiate multihost blood meals. Findings from both methodologies indicate that host DNA could be detected and the host species identified in samples from laboratory reared and field collected triatomines. The implications of this study are twofold. First, these methods can be used in areas where the fauna diversity and feeding behavior of the triatomines are unknown. Secondly, the RFLP method led to the identification of multi-host DNA from T. infestans gut contents, enhancing the information provided by this assay. These tools are important contributions for ecological and epidemiological studies of vector-borne diseases.
Revista Peruana de Biología, 2013
En este trabajo, se reúne la mayor información disponible acerca de los acantocéfalos encontrados... more En este trabajo, se reúne la mayor información disponible acerca de los acantocéfalos encontrados en el Perú y se incluyen nuevos huéspedes.
Medicina Clínica, 2009
Biblioteca de la Universidad Complutense de Madrid, Base de datos de artículos de revistas, ...
Este volumen presenta y analiza la forma como piensan y actúan dos gerentes colombianos: Luz Mary... more Este volumen presenta y analiza la forma como piensan y actúan dos gerentes colombianos: Luz Mary Guerrero Hernández, actual presidenta de Servientrega Ltda., y Carlos Hernán Peñaloza, exgerente del SENA. Su pensamiento y actuación es contrastado con el resultado de un análisis exhaustivo de marcos teóricos que permiten encontrar generalizaciones comparables con dicho pensamiento.