Revascularización pulpar en dientes permanentes con ápice abierto por medio de la utilización de plasma rico en plaquetas en combinación con soportes de colágeno tipo I. : estudio descriptivo

La revascularización pulpar es el procedimiento enmarcado dentro de la endodoncia regenerativa, con el fin de lograr el cierre apical, engrosamiento de las paredes dentinales y la resolución apical producto de una patología pulpar y/o periapical en dientes inmaduros. La endodoncia regenerativa busca regenerar y no reparar, está basada en tres componentes principales: las células madre, que pueden diferenciarse en células implicadas en el desarrollo radicular; los factores de crecimiento, que inducen la diferenciación celular y por último los andamios físicos, los cuales pueden promover la migración y el crecimiento celular. Dentro de los andamios más conocidos se encuentra el Plasma Rico en Plaquetas del cual se libera diversos factores de crecimiento que promueven la proliferación y diferenciación celular, estimulando la neovascularización y mejorando la respuesta inflamatoria local. Por su parte los soportes de colágeno son útiles para la proliferación, diferenciación y crecimiento de células que sinteticen tejido duro mineralizado. La revascularización pulpar teniendo en cuenta estos andamios y demás componentes de la endodoncia regenerativa, está encaminada al éxito clínico y radiográfico en el tratamiento de dientes inmaduros.Abstract. The pulp revascularization is a regenerative endodontic procedure, which is used to achieve the apical closure, thickening of the dentin walls and apical resolution, product of pulp and/or periapical pathology in immature teeth. Regenerative endodontics seeks to regenerate, not repair, is based on three main components: stem cells, these can differentiate into cells involved in root development; growth factors, which induce cell differentiation and finally scaffolds, which can promote migration and growth cell. Within the best known scaffolds is Platelet Rich Plasma that releases several growth factors that promote cell proliferation and differentiation, stimulating neovascularization and improving the local inflammatory response. Meanwhile the collagen supports are useful for proliferation, differentiation and growth of cells that synthesize mineralized hard tissue. The pulp revascularization given these scaffolds and other components of regenerative endodontics, it is directed to the clinical and radiographic successful treatment of immature teethOtr

Gobernanza desde un ámbito político y de comunidad frente a la autogestión, calidad y cobertura del agua caso vereda San Isidro Cundinamarca

El presente artículo explora el concepto de gobernanza en la gestión que se ha dado en la comunidad de la vereda San Isidro, Cundinamarca, acerca del desarrollo del aprovechamiento del recurso hídrico en pro del auto sostenimiento de los habitantes de la vereda; se evalúa la calidad, servicio, gestión estatal y la relación de las políticas públicas para el cubrimiento de las necesidades de la sociedad. El estudio de caso arroja como conclusión, la percepción que se tiene desde la comunidad y el aporte que reciben de los entes gubernamentales, los cuales están dirigidos principalmente a la regulación del recurso que fue obtenido por iniciativa de la comunidad. No obstante la reglamentación del servicio no está enfocada tanto a mejorar las condiciones del recurso, como a limitar su uso.This article explores the concept of governance from the theoretical point of view to the management that has been given from the community of San Isidro, Cundinamarca, towards the development of the use of water resources for the self-sustainability of the inhabitants of the path, quality, service, state management and the relationship of public policies towards the coverage of society's needs are evaluated. The case study shows, as a conclusion, the perception that is had from the community and the contribution that they receive from the governmental bodies, which are mainly directed to the regulation of the resource that was obtained by initiative of the community, nevertheless such regulation does not is focused on improving the conditions of the resource, rather to limit its use

Teaching receptive vocabulary in a foreign language classroom to students with down syndrome through different methodological elements.

Nowadays the teaching of a foreign language is limited to certain populations due to the learning difficulties that they have. In the English area, it is important to consider that there are schools with students with Down syndrome whose English teachers should have knowledge about how to teach these populations. The main purpose of this research is to present the different methodological elements that predominate in the recognition of English receptive vocabulary for students with Down syndrome, to describe the learning environment in the classroom, identify the predominated methodological elements used to teach vocabulary and demonstrate how is the vocabulary recognition of a basic category of vocabulary. In order to achieve the objectives and answer the question of this research used different instruments to collect information as: surveys, observations, interviews and audiovisual materials. Hence it was possible to determine from this information the characterization of the participants, the cause of visual materials in the students, techniques and strategies that facilitated the recognition of vocabulary, the factors that supported the students in the different learning environments and the recognition of vocabulary through a basic category of vocabulary. In this case of study, it is concluded that most of these elements focused on students' visual memory through different strategies, techniques, approaches and methods, as well as the reinforcement of vocabulary in all classes, as well as the different environments that helped the student in his learning process

Análisis de fracturas y caracterización de diaclasas de la formación Villeta, sector occidental de la subcuenca de Neiva

To evaluate naturally fractured reservoirs, there are different sources of information and methods that may be of limited access or high costs, especially for formations in which their level of productivity is unknown, or that have not yet been studied to determine their viability as hydrocarbon producer. Therefore, this article presents the application of an outcrop analysis method, as a source of indirect information, to characterize and determine the possible migration routes of the Hondita and Lomagorda carbonate formations belonging to the Villeta group. In the development of this characterization, the use of rectangular window-type fracture sampling strategies was implemented, through the exercise of taking structural measures, such as direction, dip, separation and spacing, over delimited areas in the outcrops of the formations of interest. With the help of the results, were identified 7 zones of joints, with a trend in low-angle courses with ranges in the northeast direction, establishing that this would be the predominance of fluid migration; giving an expectation that these data positively improve the development of the reservoirs.Para evaluar los yacimientos naturalmente fracturados se tienen diferentes fuentes de información y métodos que pueden ser de limitado acceso o de altos costos, especialmente para formaciones en las que se desconoce su nivel de productividad, o que aún no se ha estudiado para determinar su viabilidad como productora de hidrocarburos. Por lo que en este artículo se presenta la aplicación de un método de análisis de afloramiento, como fuente de información indirecta, para caracterizar y determinar las posibles vías de migración de las formaciones carbonatadas Hondita y Lomagorda pertenecientes al grupo Villeta. En el desarrollo de esta caracterización se implementó el uso de estrategias de muestreo de fracturas de tipo ventana rectangular, mediante el ejercicio de tomar medidas estructurales, como rumbo, buzamiento, separación y espaciamiento, sobre zonas delimitadas en los afloramientos de las formaciones de interés. Con ayuda de los resultados se identificaron 7 zonas de diaclasas, con una tendencia en rumbos de bajo ángulo con rangos en dirección noreste, estableciendo que esta sería la predominancia de migración de fluidos; dando una expectativa para que estos datos mejoren positivamente el desarrollo de los yacimientos

First report and comparative genomics analysis of a blaoxa-244-haarboring escherichia coli isolate recovered in the American continent

The carbapenemase OXA-244 is a derivate of OXA-48, and its detection is very difficult in laboratories. Here, we report the identification and genomic analysis of an Escherichia coli isolate (28Eco12) harboring the blaOXA-244 gene identified in Colombia, South America. The 28Eco12 isolate was identified during a retrospective study, and it was recovered from a patient treated in Colombia. The complete nucleotide sequence was established using the PacBio platform. A comparative genomics analysis with other blaOXA-244–harboring Escherichia coli strains was performed. The 28Eco12 isolate belonged to sequence type (ST) 38, and its genome was composed of two molecules, a chromosome of 5,343,367 bp and a plasmid of 92,027 bp, which belonged to the incompatibility group IncY and did not harbor resistance genes. The blaOXA-244 gene was chromosomally encoded and mobilized by an ISR1-related Tn6237 composite transposon. Notably, this transposon was inserted and located within a new genomic island. To our knowledge, this is the first report of a blaOXA-244–harboring Escherichia coli isolate in America. Our results suggest that the introduction of the OXA-244-producing E. coli isolate was through clonal expansion of the ST38 pandemic clone. Other isolates producing OXA-244 could be circulating silently in America

Teaching receptive vocabulary in a foreign language classroom to students with down syndrome through different methodological elements.

Nowadays the teaching of a foreign language is limited to certain populations due to the learning difficulties that they have. In the English area, it is important to consider that there are schools with students with Down syndrome whose English teachers should have knowledge about how to teach these populations. The main purpose of this research is to present the different methodological elements that predominate in the recognition of English receptive vocabulary for students with Down syndrome, to describe the learning environment in the classroom, identify the predominated methodological elements used to teach vocabulary and demonstrate how is the vocabulary recognition of a basic category of vocabulary. In order to achieve the objectives and answer the question of this research used different instruments to collect information as: surveys, observations, interviews and audiovisual materials. Hence it was possible to determine from this information the characterization of the participants, the cause of visual materials in the students, techniques and strategies that facilitated the recognition of vocabulary, the factors that supported the students in the different learning environments and the recognition of vocabulary through a basic category of vocabulary. In this case of study, it is concluded that most of these elements focused on students' visual memory through different strategies, techniques, approaches and methods, as well as the reinforcement of vocabulary in all classes, as well as the different environments that helped the student in his learning process

Problemática rural en la encrucijada de la gestión de Gobiernos Autónomos Descentralizados Parroquiales. Casos de la provincia de el oro

The rurality of Ecuador and Latin America faces an oppressive reality derived from infrastructures incompatible with their productive potential, persistence of large estates and technical-scientific systems that are discordant with the sustainable and sustainable exploitation of their natural resources. Contradictorily, the State focuses its budgetary attention on urbanity, discriminating against the population and rural governments. In this context, it is questioned, what public policies are implemented by the Autonomous Decentralized Rural Parochial Governments (GAD's PR) to articulate the social realities that enhance the economy and quality of life? The objective, “To promote the strengthening of the institutional framework of the GAD's PR as determinant entities of local development: agricultural and population. The methodological approach is mixed, empirical - inductive method, non-experimental design, descriptive, explanatory, correlational scope, probabilistic sample, legal support in the constitution and current laws in Ecuador, based on theories on territorial organization and development. The results express that the level of citizen participation in collaborative community activities is 51%, which affects the functioning of the social structure, while the level of rejection towards parish managers is 77%. 28% perceive that leadership weaknesses prevent turning rural sectors into emporiums of local development.La ruralidad de Ecuador y América Latina enfrenta una realidad opresiva derivada de infraestructuras incompatibles con su potencial productivo, persistencia de latifundios y sistemas técnico – científicos discordantes con la explotación sostenible y sustentable de sus recursos naturales. Contradictoriamente el Estado centra su atención presupuestaria en la urbanidad, discriminando a la población y gobiernos rurales. Bajo este contexto se interroga ¿Qué políticas públicas implementan los Gobiernos Autónomos Descentralizados Parroquiales Rurales (GAD´s PR) para articular las realidades sociales que potencien la economía y la calidad de vida? El objetivo, “Promover el fortalecimiento de la institucionalidad de los GAD´s PR como entidades determinantes del desarrollo local: agropecuario y poblacional. El enfoque metodológico es mixto, método empírico – inductivo, diseño no experimental, alcance descriptivo, explicativo, correlacional, muestra probabilística, soporte legal en la constitución y leyes vigentes en Ecuador, con fundamentación en teorías sobre organización y desarrollo territorial. Los resultados expresan que el nivel de participación ciudadana en actividades colaborativas comunitarias es del 51 %, lo que afecta el funcionamiento de la estructura social, mientras que el nivel de rechazo hacia los gestores parroquiales está en 77%. El 28% perciben que las debilidades en el liderazgo impiden convertir a los sectores rurales en emporios del desarrollo local

Analysis technique for exceptional points in open quantum systems and QPT analogy for the appearance of irreversibility

We propose an analysis technique for the exceptional points (EPs) occurring in the discrete spectrum of open quantum systems (OQS), using a semi-infinite chain coupled to an endpoint impurity as a prototype. We outline our method to locate the EPs in OQS, further obtaining an eigenvalue expansion in the vicinity of the EPs that gives rise to characteristic exponents. We also report the precise number of EPs occurring in an OQS with a continuum described by a quadratic dispersion curve. In particular, the number of EPs occurring in a bare discrete Hamiltonian of dimension $n_\textrm{D}$ is given by $n_\textrm{D} (n_\textrm{D} - 1)$; if this discrete Hamiltonian is then coupled to continuum (or continua) to form an OQS, the interaction with the continuum generally produces an enlarged discrete solution space that includes a greater number of EPs, specifically $2^{n_\textrm{C}} (n_\textrm{C} + n_\textrm{D}) [2^{n_\textrm{C}} (n_\textrm{C} + n_\textrm{D}) - 1]$, in which $n_\textrm{C}$ is the number of (non-degenerate) continua to which the discrete sector is attached. Finally, we offer a heuristic quantum phase transition analogy for the emergence of the resonance (giving rise to irreversibility via exponential decay) in which the decay width plays the role of the order parameter; the associated critical exponent is then determined by the above eigenvalue expansion.Comment: 16 pages, 7 figure

Propuesta Estratégica de Mejora en la Implementación de los Estándares Mínimos del Sistema de Gestión de la Seguridad y Salud en el Trabajo (SG-SST) en la empresa Digitex -Campaña Telemercadeo para el primer semestre del 2019.

Propuesta estratégica de mejora en la implementacion de los estándares mínimos del sistema de gestión y salud en el trabajo (SG-SST) En la empresa Digitex- Campaña tele mercadeo para el primer semestre del 2019that one ita a vierwer about standars and minimun rules in health , security and management in digitex - 1 semester 201