Prevalencia de maloclusiones en escolares de 8-12 años del cantón Cevallos en la provincia de Tungurahua de septiembre a diciembre de 2019

BACKGROUND: Malocclusions are oral alterations that present a high prevalence in the population, therefore they are considered a Public Health problem. They are produced by the lack of harmony between the anatomophosiological controls of the stomatognathic system and the dental pieces...FUNDAMENTO: Las maloclusiones son alteraciones bucales que presentan una prevalencia alta en la población, por lo tanto se consideran un problema de Salud Pública. Se producen por la ausencia de armonía entre los controles anatomofiosiológicos del sistema estomatognático y las piezas dentales..

Sistematización del proceso creativo: la construcción de una imagen visual para la puesta en escena empleando la noción de metáfora de Elena Oliveira y el intersticio de Jean Frederic Chevallier

La redacción de esta tesis propone la sistematización de un proceso creativo a través de la metáfora y la noción de intersticio de Jean Frederic Chevallier, mediante la construcción de una imagen visual para la puesta en escena. Para lograrlo, se ha realizado una reflexión teórica de la práctica creativa como una red de creación para posteriormente, definir y conocer cada herramienta a emplearse; también, se ha recopilado información de diarios de trabajo personales para analizar y redactar el proceso de la práctica creativa de un trabajo realizado dentro de la cátedra de Composición y montaje, cuya investigación parte desde la sensación como productor de imágenes visuales y cómo este elemento es un potencial generador de experiencias estéticas que responden a un contexto social.The writing of this thesis proposes the systematization of a creative process through the metaphor and the notion of interstice of Jean Frederic Chevallier, in which the construction of a visual image for the staging is carried out. To achieve this, a theoretical reflection of creative practice has been carried out as a creation network to later define and learn about each tool to be used; Also, information has been compiled from personal work diaries to analyze and write the process of creative practice of a work carried out within the Composition and Editing Chair, whose research starts from the sensation as a producer of visual images and how this element is a potential generator of aesthetic experiences that respond to a social context.Licenciado en Artes EscénicasCuenc

Mathematics teachers’ ideas about mathematical models: a diverse landscape

This paper describes the ideas that mathematics teachers (grades 5-9) have regarding mathematical models of real-world phenomena, and explores how teachers’ ideas differ depending on their educational background. Participants were 56 United States in-service mathematics teachers. We analyzed teachers’ written responses to three open-ended questions through content analysis. A varied landscape of ideas was identified. Teachers referred to different entities as constituting models, expressed different ideas about whether data points can be part of models, and whether models convey more information than data. Interesting differences according to educational background were identified, especially between teachers with and without mathematics backgrounds

Mathematics teachers’ ideas about mathematical models: A diverse landscape

This paper describes the ideas that mathematics teachers (grades 5-9) have regarding mathematical models of real-world phenomena, and explores how teachers’ ideas differ depending on their educational background. Participants were 56 United States in-service mathematics teachers. We analyzed teachers’ written responses to three open-ended questions through content analysis. A varied landscape of ideas was identified. Teachers referred to different entities as constituting models, expressed different ideas about whether data points can be part of models, and whether models convey more information than data. Interesting differences according to educational background were identified, especially between teachers with and without mathematics backgrounds.Ideas de profesores de matemáticas sobre modelos matemáticos: un panorama diversoEste artículo describe las ideas que tienen profesores de matemáticas (grados 5-9) acerca de los modelos matemáticos de fenómenos del mundo real y explora cómo esas ideas difieren dependiendo de la formación académica de los profesores. Analizamos las respuestas de 56 profesores en ejercicio estadounidenses a tres preguntas abiertas, mediante un análisis de contenido. Identificamos un panorama variado de ideas sobre las entidades que constituyen el modelo matemático, sobre si los datos pertenecen o no al modelo, y sobre si el modelo es más o menos informativo que los datos. Encontramos diferencias interesantes entre profesores con y sin formación matemática.Handle:  http://hdl.handle.net/10481/3323

Ideas de profesores de matemáticas sobre modelos matemáticos: un panorama diverso

This paper describes the ideas that mathematics teachers (grades 5-9) have regarding mathematical models of real-world phenomena, and explores how teachers’ ideas differ depending on their educational background. Participants were 56 United States in-service mathematics teachers. We analyzed teachers’ written responses to three open-ended questions through content analysis. A varied landscape of ideas was identified. Teachers referred to different entities as constituting models, expressed different ideas about whether data points can be part of models, and whether models convey more information than data. Interesting differences according to educational background were identified, especially between teachers with and without mathematics backgrounds.Este artículo describe las ideas que tienen profesores de matemáticas (grados 5-9) acerca de los modelos matemáticos de fenómenos del mundo real y explora cómo esas ideas difieren dependiendo de la formación académica de los profesores. Analizamos las respuestas de 56 profesores en ejercicio estadounidenses a tres preguntas abiertas, mediante un análisis de contenido. Identificamos un panorama variado de ideas sobre las entidades que constituyen el modelo matemático, sobre si los datos pertenecen o no al modelo, y sobre si el modelo es más o menos informativo que los datos. Encontramos diferencias interesantes entre profesores con y sin formación matemática.This study was funded by the National Science Foundation (NSF), Grant # DUE- 0962863, “The Poincaré Institute: A Partnership for Mathematics Education.” The ideas expressed herein are those of the authors and do not necessarily reflect the ideas of the funding agency

Learning Translation Rules from Bilingual English - Filipino Corpus

PACLIC 19 / Taipei, taiwan / December 1-3, 200

CRF Mediates Stress-Induced Pathophysiological High-Frequency Oscillations in Traumatic Brain Injury

Copyright © 2019 Narla et al. It is not known why there is increased risk to have seizures with increased anxiety and stress after traumatic brain injury (TBI). Stressors cause the release of corticotropin-releasing factor (CRF) both from the hypothalamic pituitary adrenal (HPA) axis and from CNS neurons located in the central amygdala and GABAergic interneurons. We have previously shown that CRF signaling is plastic, becoming excitatory instead of inhibitory after the kindling model of epilepsy. Here, using Sprague Dawley rats we have found that CRF signaling increased excitability after TBI. Following TBI, CRF type 1 receptor (CRFR1)-mediated activity caused abnormally large electrical responses in the amygdala, including fast ripples, which are considered to be epileptogenic. After TBI, we also found the ripple (120-250 Hz) and fast ripple activity (\u3e250 Hz) was cross-frequency coupled with θ (3-8 Hz) oscillations. CRFR1 antagonists reduced the incidence of phase coupling between ripples and fast ripples. Our observations indicate that pathophysiological signaling of the CRFR1 increases the incidence of epileptiform activity after TBI. The use for CRFR1 antagonist may be useful to reduce the severity and frequency of TBI associated epileptic seizures

Cambios en los flujos de ayuda oficial al desarrollo, tras el ascenso en la clasificación de países según nivel de ingreso: caso El Salvador, periodo 2000 a 2018

La concepción de desarrollo de un país es un debate persistente en la disciplina de las Relaciones Internacionales, por ello, es oportuno abordar cómo se constituye la arquitectura de la ayuda,identificando las directrices globales emitidas y respaldadas por entidades internacionales como el Banco Mundial y la Organización para la Cooperación y el Desarrollo Económico. Estas moldean el sistema de medición y cómputo de la cooperación internacional y establecen que un país al haber alcanzado un determinado nivel de ingreso, es desplazado de la lista de países elegibles para recibir Ayuda Oficial al Desarrollo (AOD)

Is there scope for cost savings and efficiency gains in HIV services? A systematic review of the evidence from low- and middle-income countries.

OBJECTIVE: To synthesize the data available--on costs, efficiency and economies of scale and scope--for the six basic programmes of the UNAIDS Strategic Investment Framework, to inform those planning the scale-up of human immunodeficiency virus (HIV) services in low- and middle-income countries. METHODS: The relevant peer-reviewed and "grey" literature from low- and middle-income countries was systematically reviewed. Search and analysis followed Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. FINDINGS: Of the 82 empirical costing and efficiency studies identified, nine provided data on economies of scale. Scale explained much of the variation in the costs of several HIV services, particularly those of targeted HIV prevention for key populations and HIV testing and treatment. There is some evidence of economies of scope from integrating HIV counselling and testing services with several other services. Cost efficiency may also be improved by reducing input prices, task shifting and improving client adherence. CONCLUSION: HIV programmes need to optimize the scale of service provision to achieve efficiency. Interventions that may enhance the potential for economies of scale include intensifying demand-creation activities, reducing the costs for service users, expanding existing programmes rather than creating new structures, and reducing attrition of existing service users. Models for integrated service delivery--which is, potentially, more efficient than the implementation of stand-alone services--should be investigated further. Further experimental evidence is required to understand how to best achieve efficiency gains in HIV programmes and assess the cost-effectiveness of each service-delivery model