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Sample records for visuales como factor

  1. MEMORIA VISUAL COMO PARTE DEL PROCESO LECTOR

    OpenAIRE

    Gamero-Muñiz, Antonia

    2013-01-01

    Este trabajo tiene como objetivo indagar la relación entre los movimientos sacádicos, velocidad y comprensión lectora y la memoria visual en alumnos de 2ºESO, con el propósito de contribuir a la labor docente en los apoyos del aprendizaje de una correcta lectura y tomando como fundamentación teórica la importancia de la memoria visual en el proceso lector. Se ha seleccionado una muestra de 24 niños y 21 niñas con edades comprendidas entre 13 y 15 años. Se evaluaron los movimientos sacádico...

  2. La reforma agraria como factor del desarrollo regional

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    José Ambrósio Ferreira Neto

    2017-01-01

    Full Text Available Este trabajo debate la reforma agraria brasilera como instrumento de desarrollo regional, discutiendo la política actual de asentamientos rurales y su importancia en los procesos de interacción con las dinámicas locales y regionales, investigando las transformaciones que esos proyectos pueden provocar en los municipios donde están inmersos. El trabajo toma como punto central de discusión los argumentos de Polanyi sobre los factores de producción, tierra, capital y trabajo, y de Amartya Sen sobre libertad como factor de desarrollo. La discusión emprendida defiende la reforma agraria como forma de conceder oportunidades y una condición de agentes a sus beneficiarios. Argumentamos que el acceso a la tierra, y a los medios de producción, garantiza al trabajador el control sobre su fuerza de trabajo.

  3. Emprego das medidas anatômicas do buraco macular idiopático obtidas pela tomografia de coerência óptica como fator preditivo nos resultados visuais: um estudo piloto Use of anatomical measures of idiopathic macular hole obtained through optical coherence tomography as a predictive factor in visual results: a pilot study

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    Alan Diego Negretto

    2007-10-01

    Full Text Available OBJETIVO: Avaliar a anatomia do buraco macular idiopático (BMI a partir da tomografia de coerência óptica (OCT e construir índice prognóstico que possa ser correlacionado com os resultados visuais e o fechamento anatômico. MÉTODOS: Estudo prospectivo, no qual 22 olhos com BMI foram avaliados pelo OCT no pré-operatório da cirurgia do BMI. Foi criado o índice prognóstico do buraco macular (IPBM que foi correlacionado com o resultado anatômico e a acuidade visual pós-operatória seis meses após a cirurgia. RESULTADOS: Dezesseis olhos (72,7% obtiveram fechamento anatômico ao final de seis meses de acompanhamento. Na análise do IPBM, houve diferença significativa entre o grupo 1 (BM aberto e o grupo 2 (BM fechado (p=0,0018. O risco de insucesso para o fechamento anatômico é 11 vezes maior quando o diâmetro da base interna for superior a 600 µm ou o IPBM for inferior a 0,6 (p=0,0495. No que diz respeito à AV final, observou-se que o IPBM tem correlação negativa significante na AV (p=0,001. CONCLUSÃO: O IPBM se apresentou como o melhor preditor de fechamento anatômico e acuidade visual pós-operatória entre as variáveis aqui estudadas. Responde por 41% da acuidade visual pós-operatória final, nos levando a crer que outros fatores, como o tempo de história e a degeneração dos fotorreceptores nestes BM mais antigos, possam estar envolvidos nos resultados visuais.PURPOSE: To evaluate the anatomy of idiopathic macular hole (IMH using Optical Coherence Tomography (OCT and to construct a prognostic index that can be correlated with the visual outcomes and the anatomical closing. METHODS: Prospective study, in which 22 eyes with IMH had been evaluated through OCT in the daily postoperative period of IMH surgery. The Prognostic of Macular Hole Index (PMHI was created which was correlated with the anatomical result and the postoperative visual acuity (VA six months after surgery. RESULTS: Sixteen eyes (72.7% got anatomical

  4. Obesidad pregestacional como factor de riesgo asociado a preeclampsia

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    Zoila Moreno

    2003-06-01

    Full Text Available Objetivo: Evaluar la obesidad como factor de riesgo de preeclampsia. Diseño: Estudio caso control realizado en el Hospital Dos de Mayo, Lima, Perú. Material y Métodos: Después de excluir 35 pacientes, se comparó 107 mujeres preeclámpticas con 107 gestantes normotensas, pareadas para edad gestacional (±1 semana. Se correlacionó peso pregestacional con la presencia de preeclampsia usando chi-cuadrado; se empleó t de student para comparar promedios y se controló variables confusoras usando la regresión logística. Resultados: La preeclampsia estuvo asociada con una edad de 35 años o más (OR 3,0; IC 95% 1,2 a 7,9, historia de preeclampsia en el embarazo previo (OR 5,4; IC 95% 1,6 a 17,9 y obesidad (OR 6,5; 6,2 a 2,8, considerada como el tercil más alto de los parámetros índice de masa corporal (IMC, pliegue tricipital y circunferencia braquial media en el grupo control. Existió significativa tendencia linear de riesgo de preeclampsia con estos parámetros (p< 0,001. Conclusiones: Las mujeres obesas deben ser cuidadosamente controladas, para reducir la incidencia de preeclampsia y sus complicaciones.

  5. Educación universitaria como factor de movilidad social

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    María Guadalupe Vélez Vázquez

    2014-01-01

    Full Text Available El decidir entrar o no a estudiar una carrera universitaria aún es visto como una posibilidad de mantenerse o mejorar las condiciones de vida de una buena parte de la población. A mediados de los noventas las Instituciones de Educación Superior (IES de la Región del Évora, mostraron un fenómeno socio educativo,mayor participación de las mujeres en estos niveles, provenientes de diferentes municipios y localidades rurales. Esta investigación describe la dinámica y elementos o factores de movilidad social de egresadas universitarias, las categorías de estudio fueron el nivel educativo de la familia de origen (abuelos y padres, in-corporación de las egresadas a estudios pre universitarios y universitarios, situación laboral, su posición socio económica y los elementos de la movilidad o inmovilidad social. La investigación se abordó desde una perspectiva fenomenológica, con enfoque cualitativo, en la recopilación de datos se utilizaron las técnicas de investigación: entrevista estructurada y documental, se aplicaron 68 entrevistas y fichas de caracterización socio económica. De los aspectos sociales, casi en su totalidad, las familias de origen son de escasos recursos, sin estudios y residen o habitaron en contexto con características de vida rural; la mayoría de las egresadas son la primera generación que logra un nivel superior educativo, se encuentran desarrollando una actividad laboral, sin embargo, reproducen el nivel socio económico de su familia de origen, principalmente la de los padres y el elemento de movilidad social, no es sólo la educación sino es familia-educación.

  6. Educación universitaria como factor de movilidad social

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    María Guadalupe Vélez Vázquez

    2014-05-01

    Full Text Available El decidir entrar o no a estudiar una carrera universitaria aún es visto como una posibilidad de mantenerse o mejorar las condiciones de vida de una buena parte de la población. A mediados de los noventas las Instituciones de Educación Superior (IES de la Región del Évora, mostraron un fenómeno socioeducativo, mayor participación de las mujeres en estos niveles, provenientes de diferentes municipios y localidades rurales. Esta investigación describe la dinámica y elementos o factores de movilidad social de egresadas universitarias, las categorías de estudio fueron el nivel educativo de la familia de origen (abuelos y padres, incorporación de las egresadas a estudios preuniversitarios y universitarios, situación laboral, su posición socioeconómica y los elementos de la movilidad o inmovilidad social. La investigación se abordó desde una perspectiva fenomenológica, con enfoque cualitativo, en la recopilación de datos se utilizaron las técnicas de investigación: entrevista estructurada y documental, se aplicaron 68 entrevistas y fichas de caracterización socioeconómica. De los aspectos sociales, casi en su totalidad, las familias de origen son de escasos recursos, sin estudios y residen o habitaron en contexto con características de vida rural; la mayoría de las egresadas son la primera generación que logra un nivel superior educativo, se encuentran desarrollando una actividad laboral, sin embargo, reproducen el nivel socioeconómico de su familia de origen, principalmente la de los padres y el elemento de movilidad social, no es sólo la educación sino es familia-educación. Palabras clave: Movilidad social, posición socioeconómica, egresadas universitarias.

  7. A estética como factor promotor da aprendizagem

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    Fátima Maria BEZERRA BARBOSA

    2012-02-01

    Full Text Available La reflexión filosófica sobre el arte, lo hermoso, lo bueno, lo verdadero y su capacidad de promover el desarrollo humano es un tema que remonta a Platón en la cultura occidental. Considerando que la educación debe ser entendida como un fenómeno integral, que abarca no sólo las dimensiones intelectuales sino también las dimensiones sensibles, la intuición y el raciocinio, las capacidades imaginativas y creativas, el «saber ser» y el «saber estar» parejas del «conocer» y del «saber hacer», pensamos que es incuestionable la importancia de la estética en el fenómeno educativo. El objetivo de este trabajo es demostrar la importancia de la educación estética como motor fundamental de desarrollo humano y, en este sentido, como catalizador de la motivación y del aprendizaje, para que, a través de la imaginación y de la creatividad, sea posible la innovación en la construcción de vías alternativas para un mundo más humano y placentero.

  8. La visión gerencial como factor de competitividad

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    José María González A.

    2010-08-01

    Full Text Available La Maestría en Administración de Empresas de la Universidad Santo Tomás ha venido realizando un estudio sectorial para la Industria de la comunicación gráfica de Bucaramanga, mediante la aplicación del Modelo para la Modernización de la Gestión de las Organizaciones (MMGO, desarrollado por la Universidad EAN. Dicho modelo provee información sobre los múltiples aspectos gerenciales de una organización, por lo tanto, en el presente caso se utilizará la información que el modelo aplicado provee sobre la visión gerencial y sus relaciones con el desarrollo integral de la organización y otras herramientas gerenciales que la utilizan como el análisis del entorno y herramientas que la vitalizan como la capacitación y el entrenamiento. Con esta información se pretende realizar un análisis que alimente la investigación macro que se viene realizando y a la vez, aportar evidencia empírica sobre la reflexión teórica que se desarrolla en la comunidad científica alrededor del concepto de visión gerencial.

  9. El federalismo cooperativo como factor catalizador de un Gobierno Abierto

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    Rafael Enrique Valenzuela Mendoza

    2013-01-01

    Full Text Available Este artículo tiene como propósito articular un marco de análisis que justifica la importancia de la colaboración entre gobiernos, bajo el supuesto de que un sistema rígido de competencias tiende a fragmentar la solución de los asuntos públicos en las agendas de gobierno. Un federalismo cooperativo, en tanto variable productora de relaciones intergubernamentales, da forma a un contexto que favorece impulsar soluciones más integrales en torno a demandas inscritas en el plan de acción, elaborado como requisito de pertenencia a la Alianza Internacional por un Gobierno Abierto. La propuesta llevada a Brasilia por la representación de México en junio de 2012, con la idea de promover la apertura gubernamental en el plano subnacional y local, tendrá mayores posibilidades de éxito si previamente se establecen bases mínimas para un federalismo cooperativo que facilite la gestión de los asuntos públicos establecidos en el plan de acción.

  10. Medicamentos como posible factor asociado a la infertilidad masculina

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    Campos Martínez B.

    2015-09-01

    Full Text Available Revisión sistemática de las fichas técnicas (apartados 4.6 y 5.3 de los medicamentos más consumidos en España, según el Sistema Nacional de Salud, y revisión bibliográfica a través de PubMed, según un patrón de búsqueda estándar, con respecto a la influencia de éstos sobre la fertilidad masculina. Como resultado a esto nos encontramos con que de 29 principios activos estudiados, 15 no presentan datos referentes a la fertilidad masculina en su ficha técnica, para 18 no se recuperó información al respecto en la búsqueda en PubMed y 9 no disponen de material de información que provenga de ninguna de las dos fuentes de las que utilizamos. En 3 medicamentos los resultados de las dos fuentes coinciden y en 2 encontramos discrepancias. En 13 de los 29 fármacos estudiados se ha encontrado información de efectos adversos sobre la fertilidad masculina en alguna de las 2 fuentes de información revisadas. Se demuestra con esto una falta de información clara, concisa y contrastada.

  11. El trabajo nocturno como factor de riesgo psicosocial

    OpenAIRE

    Mongui Sánchez Hilda Margoth

    1993-01-01

    Las tendencias actuales de la promoción de la seguridad integral, la higiene y el bienestar en el trabajo ya no sólo tienen en cuenta los factores de riesgo tradicionales físicos, químicos, biológicos, ergonómicos y de inseguridad del ambiente laboral, sino otra serie de factores psicosociales inherentes al tipo de empresa, a la organización del trabajo y al clima organizacional que puedan influir sustancialmente en el bienestar físico mental y social del trabajador.

  12. El trabajo nocturno como factor de riesgo psicosocial

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    Mongui Sánchez Hilda Margoth

    1993-08-01

    Full Text Available

    Las tendencias actuales de la promoción de la seguridad integral, la higiene y el bienestar en el trabajo ya no sólo tienen en cuenta los factores de riesgo tradicionales físicos, químicos, biológicos, ergonómicos y de inseguridad del ambiente laboral, sino otra serie de factores psicosociales inherentes al tipo de empresa, a la organización del trabajo y al clima organizacional que puedan influir sustancialmente en el bienestar físico mental y social del trabajador.

  13. La Memoria Visual Como Predictor del Aprendizaje de la Lectura Visual Memory as Predictor of Reading Acquisition

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    Mónica Pino

    2005-05-01

    Full Text Available Se presentan los resultados de un estudio longitudinal realizado en alumnos de escuelas municipales de Santiago de Chile, cuyo objetivo fue investigar la relación entre el reconocimiento visual-ortográfico, la percepción y la memoria visual con la lectura inicial. Especialmente se analizó la relación predictiva entre el reconocimiento perceptivo visual de la Figura Compleja de Rey, la memoria visual y el reconocimiento visual-ortográfico con el aprendizaje inicial de la lectura. La muestra estuvo conformada por 105 alumnos de primero básico. Los niños se evaluaron mediante nueve pruebas destinadas al reconocimiento perceptivo visual y visual-ortográfico y una prueba utilizada para evaluar el aprendizaje de la lectura. Los resultados mostraron que la prueba de la Figura Compleja de Rey, que evalúa capacidad de percepción visual, predice significativamente el aprendizaje lector en el nivel inicial.The aim of this article is to present the results of a longitudinal study of a group of public school pupils on their visualperception, visual memory and visual-orthographic recognizing of words and their predictivity on early reading. The sample was comprised of 105 first grade students. The children were assessed using nine tests to measure visual and visual-ortographic perceptual recognition, and a test to measure their reading ability. Results show that Rey's test, which assesses visual perception ability, has a predictive value on initial reading in Spanish speaking Chilean children.

  14. Lactancia materna como factor protector de la obesidad infantil y en edades futuras

    OpenAIRE

    González López, Tamara

    2016-01-01

    Introducción: la lactancia materna (LM) previene numerosas enfermedades, tanto del niño como de la madre, y previene la obesidad del niño, tanto en la infancia, como en las demás etapas de la vida. Objetivo: El objetivo de esta revisión sistemática es analizar el valor de la lactancia materna como factor protector frente al sobrepeso y la obesidad infantil y edades futuras. Método: Se ha efectuado una búsqueda sistemática y se han obtenido más de 100 documentos diferentes sobre el tema. Aplic...

  15. Las fortalezas en personas mayores como factor que aumenta el bienestar

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    Encarnación Ramírez-Fernández

    2015-08-01

    Full Text Available En las últimas décadas se ha incrementado el estudio de las fortalezas psicológicas como factor que afecta al bienestar. Éstas pueden ser consideradas como un subconjunto de rasgos de personalidad a los que se otorga un valor moral, definiéndose como cualidades naturales que las personas están intrínsecamente motivada a utilizar porque aumentan la calidad de vida. Las investigaciones demuestran que actúan como factores de protección y prevención de la psicopatología y de los problemas de conducta en las diferentes etapas evolutivas. Hay fortalezas que son más relevantes en personas mayores y su entrenamiento estaría dirigido a influir sobre el comportamiento y el funcionamiento emocional con el objetivo de aumentar la satisfacción con la vida. En el presente trabajo se analizan las fortalezas que predominan en adultos mayores y se propone un programa de intervención para potenciarlas con la finalidad de mejorar su salud y calidad de vida. Se trata de una propuesta novedosa ya que, hasta el momento, las intervenciones en este ámbito han ido encaminadas a paliar diferentes problemas tanto de manera aislada como complemento de terapias de tipo más tradicional pero no como prevención de la aparición de trastornos habituales en edades avanzadas.

  16. LA INSATISFACCIÓN LABORAL COMO FACTOR DEL BAJO RENDIMIENTO DEL TRABAJADOR

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    Granda Carazas, Segundo Eloy

    2014-01-01

    El tema "la insatisfacción laboral como factor del bajo rendimiento del trabajador" es importante, ya que se puede constatar que en algunas organizaciones, pese a sus significativos esfuerzos para ampliar y modernizar su infraestructura, afrontan problemas de rendimiento laboral. Este artículo se orienta a determinar en qué medida la insatisfacción laboral se asocia al bajo rendimiento laboral en una organización. Como factores constituyentes de la insatisfacción laboral se considerar...

  17. A comunicação como barreira à inclusão de alunos com deficiência visual em aulas de mecânica Communication as a barrier for including visual handicapped pupils in mechanics classes

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    Eder Pires de Camargo

    2010-01-01

    Full Text Available O presente artigo encontra-se inserido em um estudo que busca compreender as principais barreiras para a inclusão de alunos com deficiência visual no contexto do ensino de física. Focalizando aulas de mecânica, analisa as dificuldades comunicacionais entre licenciandos e discentes com deficiência visual. Para tal, enfatiza as estruturas empírica e semântico-sensorial das linguagens utilizadas, indicando fatores geradores de dificuldades de acessibilidade às informações veiculadas. Recomenda, ainda, alternativas que se destinam a dar condições à participação efetiva do discente com deficiência visual no processo comunicativo. Conclui afirmando que a comunicação representa a principal barreira à participação efetiva de alunos com deficiência visual em aulas de mecânica, e enfatiza a importância da criação de canais comunicacionais adequados como condição básica à inclusão desses alunos.This paper is a part of a broader study aiming to understand the main barriers for including visual handicapped pupils in physics' teaching contexts. It analyzes communication difficulties between future physics teachers and visual handicapped pupils during Mechanics classes. It emphasizes the empirical and semantic-sensorial structures of the languages used, indicating factors which produce the accessibility difficulties for the spread of information. It recommends alternatives in order to make possible the effective participation of visual handicapped pupils in the communicative process. It concludes that communication represents the main barrier to the effective visual handicapped pupils' participation in optics classes and emphasizes the importance of creating communicatively appropriate channels as a basic condition for including these students.

  18. Evaluación del autoestima como generador de entornos positivos en mujeres con discapacidad visual

    OpenAIRE

    Ortiz Dávalos, Nancy Gabriela

    2015-01-01

    Mi trabajo está basado en las potencialidades que tiene la mujer con discapacidad visual en el cantón Cuenca de la provincia Azuay. Primero se hizo un análisis de las condiciones socio económico en que viven las mujeres con discapacidad visual; se analizó mediante el Test de Rosenberg el grado de autoestima de este grupo y se plantearon algunas conclusiones y recomendaciones con respecto al tema y en procura de elevar la autoestima de las mujeres. My work is based on the potential of wo...

  19. La corona radiata de Helios-Sol como símbolo de poder en la Cultura Visual Romana

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    Jorge Tomás García

    2017-12-01

    Full Text Available El presente trabajo pretende analizar la presencia del motivo iconográfico de la corona radiata en la cultura visual romana como símbolo de poder. Para ello, analizaremos la figura mitológica de Helios, y sus múltiples variantes en las fuentes clásicas, especialmente aquellas que más la relacionan con la divinidad del Sol en el mundo romano. Las principales categorías de interpretación de la iconografía del Sol en la cultura visual romana enriquecen las variantes iconológicas de la presencia de la corona radiata. Así, pretendemos analizar la naturaleza real o simbólica de este atributo iconográfico tan presente desde la época de Augusto como símbolo de poder y luz ligado a la realía imperial. This article aims to analyze the presence of the iconographic motif of the corona radiata in the Roman visual culture as a symbol of power. For this, we will analyze the mythological figure of Helios, and its multiple variants in the classical sources, especially those that relate more to the divinity of the Sun in the Roman world. e main categories of interpretation of the Sun's iconography in the Roman visual culture enrich the iconological variants of the presence of the corona radiata. us, we intend to analyze the real or symbolic nature of this iconographic attribute so present since the time of Augustus as a symbol of power and light linked to the imperial realia.

  20. Coupling factors, visual rhythms, and synchronization ratios

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    Udo Will

    2012-07-01

    Full Text Available The inter-group entrainment study by Lucas, Clayton, and Leante (2011 is an interesting research report that advances studies in both empirical ethnomusicology and entrainment research in several ways, and provides an important addition to the much needed empirical case studies on musical entrainment. I submit that the authors’ analysis of an instant of resistance to entrainment is a key demonstration of the complementarity of analytical and ethnographic approaches in entrainment research. Further, I suggest that the evidence for the influence of visual information on entrainment supports the idea that there are two types of visuo-temporal information, each with different influence on the entrainment process, those derived from static and those from moving visual objects. As a final point, I argue that if we take into consideration the possibility of higher-order synchronization, some of the authors’ interpretations would need modification.

  1. 3Ecologies: Visualizing sustainability factors and futures

    OpenAIRE

    Avila, Martin; Carpenter, John; Mazé, Ramia

    2010-01-01

    ‘3Ecologies’ makes visible factors affecting the sustainability of consumer products. Within engineering and economics, there are a variety of models for analyzing and ‘predicting’ the environmental factors such as energy, emissions and waste involved during production, consumption and disposal. We develop an expanded model, which emphasizes human impact and choices as well as potential consequences and futures. Psychological, sociological and environmental factors are mapped over time – thro...

  2. Los profesionales de secundaria, como factores de riesgo en el síndrome de Burnout

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    Giselle León-León

    2011-06-01

    Full Text Available Recibido 21 de julio de 2010 • Aceptado 31 de agosto de 2010 • Corregido 03 de octubre de 2010     Este artículo aborda el síndrome de Bournout, entendido como un trastorno de la adaptación ante el estrés crónico laboral que logra desencadenar síntomas físicos y psicológicos, los cuales dañan significativamente la ejecución profesional de los individuos que prestan servicios, en este particular, el trabajo de los docentes de secundaria, los cuales se describen como vulnerables por atender a adolescentes, quienes requieren mayor comunicación, atención y guía por las característica propias de esa etapa. Además se describen algunos factores que pueden incidir en el docente, desde una perspectiva individual como por ejemplo estrés, rol, edad, estado civil, entre otros. Asímismo factores laborales tales como baja implicación, sobre carga, burocracia, ambiente, consecuencias sobre el individuo y sobre la institución y medidas para prevenirlo.

  3. Color and Visual Factors in ATC Displays

    National Research Council Canada - National Science Library

    Xing, Jing

    2006-01-01

    .... While the advantages of color may be apparent, many display designs suggest that ATC technology developers have not used basic human factors and color principles to optimize the advantages of color...

  4. La internacionalización de las pymes como factor de salida a la crisis.

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    Martínez García, Francisco Javier; Montoya del Corte, Javier

    2011-01-01

    La elevada contribución de las Pymes a la tasa de empleo, así como su aportación al PIB, son factores que denotan su importancia dentro del tejido empresarial de nuestro país. Esta relevancia justifica la necesidad de dirigir principalmente una especial atención, buscando aquellos instrumentos, herramientas y estrategias que les permita combatir las dificultades del escenario económico en que nos encontramos desde 2008.

  5. LA INFLAMACIÓN COMO FACTOR CAUSAL EMERGENTE DE LA ENFERMEDAD CARDIOVASCULAR

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    T. Fernández-Mora

    2007-06-01

    Full Text Available La ateroesclerosis está involucrada en el desarrollo de la enfermedad cardiovascular, una de las principales enfermedades de morbimortalidad en el mundo. Se han determinado una serie de factores de riesgo, tanto clásicos como emergentes, implicados en el desarrollo de esta enfermedad. Recientes investigaciones han demostrado que la inflamación juega un papel clave en el desarrollo de la ateroesclerosis. Las células del sistema inmune se encuentran presentes en todos los estadios de las lesiones arterioescleróticasy sus moléculas efectoras pueden acelerar la progresión de las lesiones y orquestar los mecanismos de inflamación inducidos en los síndromes coronarios agudos. La evidencia crítica implica a mediadores de la inmunidad tanto innata como adquirida en los diferentes estados de la ateroesclerosis. Dentro de loscomponentes inmunes involucrados en el proceso de la ateroesclerosis se encuentran componentes celulares como macrófagos, linfocitos, células dendríticas, mastocitos, células NK; componentes humoralescomo anticuerpos, citocinas proinflamatorias y moduladoras de la respuesta inmune, complemento, proteínas de fase aguda; y otros componentes como moléculas de adhesión y de choque térmico. A partirdel esclarecimiento del papel del sistema inmune en el desarrollo de la arterioesclerosis, han surgido una serie de perspectivas diagnósticas y terapéuticas para la enfermedad cardiovascular.

  6. Gráfica urbana como comunicación visual preventiva

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    D.G. Natalia Vanesa Morales Suvires

    2010-11-01

    Full Text Available Este trabajo se plantea desde el enfoque del Diseño Gráfico con el fin de contribuir de manera significativa al incremento de la concientización respecto de la amenaza sísmica existente en la provincia de San Juan. Metodológicamente el proyecto se desglosó en tres etapas: 1 relevamiento de la gráfica comunicacional existente; 2 análisis y evaluación; y 3 formulación de pautas de prevención y mitigación de los efectos del riesgo sísmico. De este modo se han definido pautas de comunicación visual que responden a los aspectos de identidad cultural de la zona, las necesidades puntuales de la población, los recursos locales, y la posible aceptación de la comunidad, todo dentro del marco de la prevención sísmica.

  7. Satisfacción del usuario en la industria hotelera como factor de competitividad

    Directory of Open Access Journals (Sweden)

    Elsa Georgina González Uribe

    2016-03-01

    Full Text Available En este trabajo se evalúan las percepciones de satisfacción del usuario de servicios de hospedaje en la zona metropolitana de Guadalajara (ZMG, con el objetivo de analizar los factores que infl uyen en ésta. La preferencia por seleccionar la industria hotelera tapatía se debe a las condiciones de desarrollo turístico que tiene Jalisco, como uno de los estados con más cantidad y variedad turística, y su capital, Guadalajara, como la segunda ciudad en importancia económica en México. Se revisó la literatura relacionada con el objeto de estudio, como son la calidad, la satisfacción y los diversos factores que infl uyen en ésta, con lo cual se presenta la situación actual que tiene la actividad turística en Jalisco y particularmente en la ZMG. Se aplicó una encuesta a huéspedes en hoteles de categorías 4, 5 estrellas y gran turismo; para finalmente presentar una propuesta de un modelo de satisfacción del usuario de servicios hoteleros.

  8. Poliglobulia como factor de riesgo en Hipertensión Arterial

    Directory of Open Access Journals (Sweden)

    María Ximena Tapia Paguay

    2017-05-01

    la relación de Poliglobulia como factor de riesgo para hipertensión arterial en habitantes de ciudades de alturas superior a 2500msnm; Estudio descriptivo, transversal, no experimental. Incluye 980 personas de 20 años y más. Se tomó muestras de sangre para medir concentración de hemoglobina y hematocrito. La presión arterial se cuantificó tres veces por semana durante un mes (en horario específico a pacientes con poliglobulia, los resultados: 53,7% mujeres y 42,3% hombres, 12,2% tuvieron poliglobulia, de los cuales 60% fueron hombres mayores de 40 años. En presión arterial, 72 fueron hombres: 76,4% con prehipertensión, 23,6% estaban hipertensos. En mujeres con poliglobulia 66.7% fueron prehipertensas 33.3% tenían hipertensión, como conclusión: El incremento de hematocrito ocasiona disminución del flujo sanguíneo, favorece la resistencia arterial y aumenta las cifras tensionales. Se recomienda evaluar en los pacientes hipertensos la presencia de poliglobulia como factor de riesgo.

  9. La inflación como factor distorsionante de la información financiera

    OpenAIRE

    Betty De La Hoz; Sigilfredo Uzcátegui; Jesús Borges; Angel Velazco

    2008-01-01

    El propósito de este trabajo es analizar la inflación como factor distorsionante de la información financiera. La investigación se centra en las técnicas de medición de la inflación y el inicio del proceso de actualización o reexpresión de los datos históricos arrojados por los estados financieros, así como también, su incidencia bajo un escenario en Venezuela para el año 2006. Se efectuó una revisión documental bibliográfica basada en los fundamentos teóricos y estadísticos de: Fernández (20...

  10. Los musicogramas y otros recursos visuales como recursos para la audición musical en educación infantil

    OpenAIRE

    Sanz Rubio, Laura

    2015-01-01

    Este trabajo indaga acerca del uso de musicogramas y otros recursos visuales y audiovisuales utilizados como soporte durante los procesos de escucha musical en la etapa de educación infantil. Para ello se ha realizado un breve estudio sobre el tema, y posteriormente una búsqueda y selección de los recursos disponibles en Internet. En este tipo de recursos los elementos visuales y audiovisuales sirven como apoyo para hacia la comprensión auditiva. Grado en Educación Infantil

  11. LA PESCA COMO FACTOR DE DESARROLLO DEL TURISMO SOSTENIBLE. EL CASO DE ÁGUILAS (MURCIA

    Directory of Open Access Journals (Sweden)

    Pedro Pérez Piernas

    2012-01-01

    Full Text Available De los municipios del litoral murciano, el de Águilas ha sido el que menos ha desarrollado la actividad turística, debido a que ha centrado su economía en la agricultura y la pesca. No por ello ha quedado al margen del proceso turístico urbanizador que ha afectado al Arco Mediterráneo en la pasada década, aunque no ha llegado a desarrollar su macroproyecto turístico de Marina de Cope. Entre mayo de 2004 y 2006, Águilas, junto a otros puertos pesqueros del Mediterráneo Occidental, participa en el proyecto MARIMED: la pesca como factor de desarrollo del turismo sostenible, iniciativa INTERREG III-B, cuyo fin es el desarrollo de formas de turismo teniendo como elemento central e innovador la pesca, considerada como sistema social, económico y cultural, capaz de ofrecer un valor añadido al beneficio del mar. Con los estudios realizados en el proyecto MARIMED se recogen los materiales necesarios para la puesta en valor del la pesca como recurso turístico en Águilas. Sobre esa base se pone en marcha en 2009 el Plan de Competitividad Turística de Águilas, el Mar y la Pesca. Con esta aportación se pretende analizar el desarrollo de un producto turístico nuevo sobre un espacio donde la tradición pesquera ha dejado una huella importante en su paisaje y cultura.

  12. El factor espacial como determinante de la obesidad en la Región de Murcia

    Directory of Open Access Journals (Sweden)

    López Hernández, Fernando Ant.

    2008-01-01

    Full Text Available La obesidad es uno de los problemas de salud más graves y de más rápido crecimiento en los países desarrollados. Esta enfermedad afecta a un gran porcentaje de la población, abarcando a todas las edades, sexos y condiciones sociales. La prevalencia de la obesidad ha aumentado y continúa incrementándose de forma alarmante en nuestra sociedad, adquiriendo proporciones epidémicas. El presente trabajo tiene como objetivo analizar los factores desencadenantes de la obesidad en la Comunidad Autónoma de la Región de Murcia, prestando especial interés a aquellos factores que presentan una componente espacial. Para llevara a cabo este estudio epidemiológico se ha realizado una encuesta a 741 individuos en toda la Región, en la que se recoge información tanto de hábitos de vida saludables como medidas antropométricas de los individuos. Los resultados del análisis apuntan a la importancia del factor espacial en la obesidad y presentando el mapa de obesidad de la CARM.

  13. Socio-Demographic Factors Associated With Loss Of Visual Acuity ...

    African Journals Online (AJOL)

    The study was designed to identify the sociodemographic factors, which significantly affect the visual acuity of glaucoma patients at presentation. It is a prospective study of 154 new patients with a diagnosis of primary open angle glaucoma seen over 1 year and 8 months at the eye clinic of the University of Benin Teaching ...

  14. Human Factors Evaluation of Advanced Electric Power Grid Visualization Tools

    Energy Technology Data Exchange (ETDEWEB)

    Greitzer, Frank L.; Dauenhauer, Peter M.; Wierks, Tamara G.; Podmore, Robin

    2009-04-01

    This report describes initial human factors evaluation of four visualization tools (Graphical Contingency Analysis, Force Directed Graphs, Phasor State Estimator and Mode Meter/ Mode Shapes) developed by PNNL, and proposed test plans that may be implemented to evaluate their utility in scenario-based experiments.

  15. Factors Influencing Visual Outcome after Surgery for Retinal ...

    African Journals Online (AJOL)

    Dr femi Oderinlo

    Three factors favourably affected visual outcome and were of statistical ... These changes are likely to affect the. 10,11 ... within the South Western geopolitical region of Nigeria is one of the ... tamponade (silicon oil or C F gas in a single case), or a combination ..... studies also had similar final anatomic success rates, 90.2%.

  16. LOS GRUPOS DE SOCIALIZACION COMO FACTOR PROTECTOR CONTRA LA DEPRESION EN PERSONAS ANCIANAS. BARANQUILLA, COLOMBIA

    Directory of Open Access Journals (Sweden)

    Rafael Tuesca-Molina

    2003-01-01

    Full Text Available Fundamento: La depresión en personas ancianas es un problema de salud pública dada su prevalencia y comorbilidad. Los objetivos de este trabajo son determinar el papel de los grupos de socialización como factor protector para depresión; determinar otros factores socioculturales asociados; estimar la prevalencia y determinar la concordancia de las pruebas de cribado para depresión - criterios de la Asociación Americana de Psiquiatría y el test de Hamilton. Método: Estudio descriptivo transversal. Participaron 602 personas ancianas de entre 60 y 94 años (223 varones y 379 mujeres, muestra representativa para la población residente del sur-occidente de Barranquilla, Colombia. Previo consentimiento, se aplicó una encuesta de administración directa. Se estudiaron las variables demográficas, socioeconómicas, limitación física, enfermedades degenerativas, disfunción familiar y dos tests de depresión para determinar la concordancia. Se realizó análisis bivariado entre la depresión y la pertinencia a grupos de socialización al igual que la depresión y otras variables. Se determinó análisis de cribado e índice de Kappa para la concordancia de pruebas. Resultados: La participación en grupos de socialización fue un factor protector de presentar depresión. (OR: 0,5, IC 95%: 0,34- 0,73. La prevalencia de depresión fue de 29,9% (IC95%: 21,4%- 39,4%, siendo en los varones 32,7%. La concordancia con el test de Kappa fue 0,63. (moderada a buena La sensibilidad fue del 56,1%, (48,5% a 63,4%; la especificidad de 99,3%, (IC95%: 97,8%-99,8% y el valor predictivo positivo del 97,1% ( IC95%: 97,2%-99,3%. Conclusiones: Esta investigación determina factores de riesgo para padecer depresión en ancianos potencialmente modificables. La participación en grupos de socialización es un factor protector. La disfunción familiar de tipo moderado y severo, las limitaciones sensoriales como ceguera y sordera, la soledad, ausencia de vivienda y

  17. El turismo cultural como factor estratégico de desarrollo: el Camino de Santiago

    Directory of Open Access Journals (Sweden)

    Precedo Ledo, Andrés

    2007-06-01

    Full Text Available The objective of this investigation is to study one of the strategies of territorial marketing of greater success: the promotion of the Way of Santiago and the mark of the Xacobeo. The approach of the study attack from the perspective of its contribution to the territorial, as much rural development (the Galician section of the Way like urban (the city of Santiago de Compostela. The departure hypothesis is that, in both cases, the cultural tourism has worked like a complementary factor of development being necessary to insert it in a model of integrated development to optimize its potential of share capital.

    El objetivo de esta investigación es estudiar una de las estrategias de marketing territorial de mayor éxito: la promoción del Camino de Santiago y la marca del Xacobeo. El enfoque del estudio se aborda desde la perspectiva de su contribución al desarrollo territorial, tanto rural (el tramo gallego del Camino como urbano (la ciudad de Santiago de Compostela. La hipótesis de partida es que, en ambos casos, el turismo cultural ha funcionado como un factor complementario de desarrollo siendo necesario insertarlo en un modelo de desarrollo integrado para optimizar su potencial de capital social.

  18. Algunas reflexiones sobre el tabaquismo como factor de riesgo para diferentes enfermedades

    Directory of Open Access Journals (Sweden)

    Miriam Bolet Astoviza

    2003-08-01

    Full Text Available Se realizó una revisión sobre el tabaquismo como factor de riesgo para muchas enfermedades, entre ellas, las cardiovasculares, con el objetivo de profundizar sobre los efectos perjudiciales de esta drogadicción, y para que todos los médicos se actualicen sobre el tema. Trata la magnitud del problema, enfermedades que provoca, fumadores activos y pasivos, prevención y recomendaciones.A literature review on smoking as a risk factor in many diseases, particularly, the cardiovascular diseases was made to delve into the harmful effects of this drug addiction and to update the knowledge of all the physicians on this topic. This paper deals with the size of the problem, the diseases caused, active and passive smokers, prevention and recommendations.

  19. IMPACTO DE LA HIPERTENSIÓN ARTERIAL COMO FACTOR DE RIESGO CARDIOVASCULAR

    Directory of Open Access Journals (Sweden)

    E.U. María Teresa Lira C.

    2015-03-01

    Full Text Available La Hipertensión Arterial (HTA continúa siendo un problema de Salud Pública relevante a nivel mundial. En Chile es la principal causa de morbimortalidad y el factor de riesgo de mayor carga atribuible para la patología cardiovascular isquècmica y el accidente cerebrovascular. En este artículo se revisa su prevalencia, el grado de conocimiento, el logro de su control y tratamiento, así como su riesgo atribuible analizando la carga de enfermedad y la pècrdida de años por discapacidad. Se presentan estudios del impacto de su inclusión en el AUGE, resultados de la intervención multidisciplinaria, su interacción con otros factores de riesgo cardiovascular y se comentan algunos aspectos de las actualizaciones de las guías internacionales para su manejo.

  20. UTILIZAÇÃO DE SOFTWARES LEITORES DE TELA COMO COADJUVANTE NO PROCESSO DE APRENDIZAGEM DE PESSOAS COM DEFICIÊNCIA VISUAL

    Directory of Open Access Journals (Sweden)

    Manoel Honório Romão

    2011-03-01

    Full Text Available Este artigo apresenta os programas leitores de tela como uma maneira de possibilitar a inclusão digital de pessoas com deficiência visual. Teve como objetivo principal nortear a escolha do leitor de tela a ser instalado nos computadores do IFRN, especialmente da Biblioteca Profª Myrian Coeli, a fim de disponibilizar acesso à informação, cultura e conhecimento aos discentes que possuam alguma incapacidade visual ou de leitura, com total independência. Para tanto, o trabalho se fundamenta em uma revisão teórica das definições e direitos das pessoas com deficiência e, finalmente, apresenta as principais características dos principais leitores de tela em uso no mercado. PALAVRAS-CHAVE: acessibilidade, inclusão digital, deficiência visual, software leitor de tela, IFRN – Campus Ipanguaçu.

  1. Visual risk factors for falls in older people.

    Science.gov (United States)

    Lord, Stephen R

    2006-09-01

    Poor vision reduces postural stability and significantly increases the risk of falls and fractures in older people. Most studies have found that poor visual acuity increases the risk of falls. However, studies that have included multiple visual measures have found that reduced contrast sensitivity and depth perception are the most important visual risk factors for falls. Multifocal glasses may add to this risk because their near-vision lenses impair distance contrast sensitivity and depth perception in the lower visual field. This reduces the ability of an older person to detect environmental hazards. There is now evidence that maximising vision through cataract surgery is an effective strategy for preventing falls. Further randomised controlled trials are required to determine whether individual strategies (such as restriction of use of multifocal glasses) or multi-strategy visual improvement interventions can significantly reduce falls in older people. Public health initiatives are required to raise awareness in older people and their carers of the importance of regular eye examinations and use of appropriate prescription glasses.

  2. La obesidad como factor de riesgo en el desarrollo de cáncer

    Directory of Open Access Journals (Sweden)

    Deissy Herrera-Covarrubias

    Full Text Available De acuerdo con la Organización Mundial de la Salud, cada año fallecen 3,4 millones de personas adultas por consecuencias del sobrepeso u obesidad. Personas con un índice de masa corporal superior a 30, presentan cierto aumento en la incidencia de algunas enfermedades entre las que se encuentran algunos tipos de cánceres. En esta revisión de tipo narrativa se aborda el papel que tiene el tejido adiposo como modulador del sistema endocrino y facilitador de la inflamación crónica subclínica. Se discute cómo la obesidad puede producir un microambiente favorable para el desarrollo de tumores, principalmente por el incremento del estrés oxidativo y en las concentraciones de diversas hormonas como la leptina, la insulina y la prolactina. Se concluye que, en conjunto, estos factores incrementan la probabilidad de desarrollar cáncer

  3. El capital social como factor para el desarrollo en el Pueblo Mágico de Tapijulapa

    Directory of Open Access Journals (Sweden)

    Jose Raul Luyando Cuevas

    2016-01-01

    Full Text Available El capital social es un factor de integración con el que se pueden lograr avances en el desarrollo de una localidad, debido a las relaciones solidarias que se entretejen entre sus miembros. Esta investigación articula un análisis de la confianza y las redes sociales como fuentes de capital social que pueden facilitar u obstaculizar el proceso de cambio y de desarrollo en el Pueblo Mágico de Tapijulapa. Los resultados obtenidos mediante análisis factorial –utilizando la técnica de componentes principales– muestran la relevancia del capital social en el proceso de construcción de relaciones mutuamente beneficiosas que sirven de sustento para generar un mayor beneficio entre sus pobladores. Ponen especial atención a la participación de individuos y agrupaciones nativas para que, en conjunto con las externas, puedan consolidar las acciones, programas y proyectos.

  4. Prevalence and factors associated with childhood visual impairment in Ethiopia

    Directory of Open Access Journals (Sweden)

    Bezabih L

    2017-11-01

    Full Text Available Lidiya Bezabih,1 Tilaye Workneh Abebe,1 Robera Olana Fite2 1Department of Public Health, College of Health Sciences, Adama General Hospital and Medical College, Adama, 2Department of Nursing, College of Medicine and Health Sciences, Wolaita Sodo University, Wolaita Sodo, Ethiopia Background: Visual impairment is a significant loss of vision. It has an impact on the prosperity of different countries. It has been difficult to plan preventive measures against visual impairment due to the scarcity of data about the extent of the problem.Objectives: The study was aimed at assessing the prevalence and identifying factors associated with visual impairment among school-age children in Ethiopia.Materials and methods: A cross-sectional study design was used in four randomly selected schools found in Addis Ababa from May 15 to June 14, 2016. A total of 804 school-age students were selected using the simple random sampling method. Bivariable logistic regression and multivariable logistic regression were conducted. A p-value <0.05 was taken as a significant association.Results: A total of 718 students participated in the study, obtaining a response rate of 89.3%. In all, 7.24% of school-age children were visually impaired, of whom 3.9% had low vision and 3.34% had severe visual impairment. Factors associated with visual impairment were being female (adjusted odds ratio [AOR], 2.28; 95% confidence interval [CI], 1.06–3.50, being in the age group of 10–13 years (AOR, 2.94; 95% CI, 1.36–6.22, being in the age group of 14–18 years (AOR, 4.06; 95% CI, 2.17–11.95, being a private school student (AOR, 2.61; 95% CI, 1.81–4.41, watching television for 2–4 hours/day (AOR, 3.56; 95% CI, 1.37–7.34, watching television at <1 m (AOR, 7.65; 95% CI, 2.59–34.61, watching television at 1–2 m (AOR, 6.89; 95% CI, 1.74–25.27, mobile exposure for 2–4 hours/day (AOR, 2.61; 95% CI, 1.35–4.58, mobile exposure for >4 hours/day (AOR, 3.05; 95% CI, 1

  5. La supuestamente ilegible escritura de médico como artefacto visual y estímulo creativo para la educación artística

    OpenAIRE

    Huerta, Ricard

    2014-01-01

    El presente artículo analiza las posibilidades educativas de la particular escritura de los médicos, estudiando la componente gráfica de sus documentos, tanto históricos como recientes. Defendemos la escritura manual como un elemento gráfico importante para la educación artística, a partir de las premisas de la cultura visual. Nos basamos en los resultados positivos de la exposición ¿Caligrafías de la enfermedad. Letra de médico¿, una muestra en la que los visitantes son protagonistas, intérp...

  6. El mini computador de papy como instrumento de enseñanza de las operaciones básicas para alumnos con limitación visual

    OpenAIRE

    Rubiano, Diana; Zolaque, Francy; Mantilla, David; Rodríguez, Andrés

    2013-01-01

    La formación en la LEBEM se preocupa por suplir las necesidades de enseñanza-aprendizaje de los estudiantes, brindando espacios de formación que permiten conocer situaciones que un maestro enfrenta en su labor, como la enseñanza a estudiantes con limitación visual. Es así, como surge la propuesta de implementar un material didáctico útil y beneficioso, que permita desarrollar la actividad matemática; un material didáctico adaptado que acompañado del valor pedagógico del juego, facilita captar...

  7. Influence factors of visual quality after phacoemulsification for cataract

    Directory of Open Access Journals (Sweden)

    Zhen-Lin Lin

    2017-12-01

    Full Text Available Cataract refers to the degenerative changes in lens quality caused by various causes of reduced transparency or color change. Surgical treatment is the main treatment modality at present. Among them, phacoemulsification has become the main surgical treatment for cataract because of its advantages such as short operation time, small incision and quicker healing. Today, cataract surgery has gradually shift to refractive surgery, and is no longer simply as cataract surgery. But after cataract phacoemulsification, the symptoms and visual quality are different. The main causes include refractive error, postoperative dry eyes and postoperative corneal astigmatism. This article reviews the factors that influence the visual quality of cataract phacoemulsification and its future trends.

  8. Teoria organizacional para la gerencia humana como factor de desarrollo a escala humana

    Directory of Open Access Journals (Sweden)

    Gregoria Polo de Lobatón

    2014-01-01

    Full Text Available Hoy, se debate en los países subdesarrollados y hasta en desarrollo caso América Latina el estancamiento económico rodeado de un mar de pobreza y exclusión social, en contrario, los paísesdesarrollados a partir de la crisis de 1929 muestran su crecimiento a partir de modelos de desarrollo económico como sustento teórico del pensamiento administrativo captado para las prácticas gerenciales; resultó útil identificar los aportes de la teoría del desarrollo como fundamentación de las teorías organizacionales y su incidencia en las prácticas gerenciales como factor de desarrollo. Metodológicamente la investigación se orientó en el enfoque cualitativo para el análisis fenomenológico de los datos encontrados en revisiones documentales. Los resultados determinaron que las prácticas gerenciales se fundamentan en teorías organizacionales clásicas y contemporáneas centradas en principios de eficiencia y productividad. A partir de las teorías contemporáneas un dinamismo con enfoques sociales y ambientales, su fundamento la escuela humana con los pensadores: Weber, Elton Mayo, reformistas y otros pensadores, que tenidas en cuenta para las prácticas gerenciales centradas en la suficiencia manifiestan interés por el acercamiento al desarrollo a escala humana.Palabras clave: Teorías organizacionales; paradigma de Gerencia Humana; Desarrollo a escala humana.Organizational theory for human management as a development factor to human scale AbstractToday, there are discussions in underdeveloped countries and even in developing ones, Latin American case, the economic halt surrounded by a sea of poverty and social exclusion, in contrast, developed countries starting from the crisis of 1929 show their growth from economic development models as a theoretical backup of the management thinking captured for management practices; proved useful to identify the contributions of development theory as the foundation of organizational theories and

  9. Dieta, obesidad y sedentarismo como factores de riesgo del cáncer de mama

    Directory of Open Access Journals (Sweden)

    Carlos Antonio Oliva Anaya

    Full Text Available El cáncer de mama es la primera causa de muerte por tumores malignos entre las mujeres. Una dieta no saludable, el sedentarismo y la obesidad son factores de riesgo importantes para padecer cáncer de mama, sobre todo en mujeres posmenopáusicas. El objetivo del presente trabajo es revisar los estudios epidemiológicos más relevantes sobre dieta, obesidad y cáncer de mama en las mujeres. Se estableció una estrategia de información, educación y comunicación social como apoyo a las acciones del Programa Nacional de Control de Cáncer Mamario. Para la prevención y tratamiento de la obesidad e incidencia de cáncer de mama es necesario actividades de educación nutricional, para producir cambios en los patrones y hábitos alimentarios y por consiguiente de estilos de vida, que promuevan una dieta más variada y el aumento del ejercicio físico, entre otros aspectos.

  10. La familia política como factor de conflictos en la pareja con esterilidad

    Directory of Open Access Journals (Sweden)

    J. Carreño Meléndez

    2016-06-01

    Full Text Available La práctica profesional como psicoterapeutas de grupo con mujeres que padecen esterilidad hace que se fije la atención en los conflictos expresados por las pacientes durante su discurso respecto a las presiones a las que son sometidas por parte de la familia política haciendo descalificaciones acerca de su infertilidad. Cuando dos personas se unen, las familias de ambos también lo hacen de una manera práctica y simbólica sin estar relacionadas por lazos de consanguineidad, y pueden ser un factor de desencuentros que en ocasiones termina con la separación o con la segregación de la mujer debido a la esterilidad. Puede ser que en una pareja funcional donde la prioridad es la reproducción se vayan gestando de manera encubierta problemas en la convivencia con el objeto de alejar a uno de ellos. Es común ocultar que la infertilidad es de origen masculino, de esta manera el hombre se quita las presiones sociales. Las familias se hacen disfuncionales cuando no hay cambios generacionales, todas pasan por una desestructura pasajera por la incorporación y la formación de una nueva familia conyugal dentro de su núcleo. Dependerá de la historia de la familia que el tránsito de esa desestructura sea con o sin conflicto.

  11. Las variables emocionales como factores de riesgo de los trastornos de la conducta alimentaria

    Directory of Open Access Journals (Sweden)

    Aitziber Pascual

    2011-01-01

    Full Text Available Este estudio ex post facto analizó si determinadas variables emocionales pueden considerarse factores de riesgo de los trastornos de la conducta alimentaria (TCA. Se analizaron las siguientes variables: ansiedad-rasgo, dificultad para identificar y expresar las emociones (alexitimia, autoestima, actitud negativa hacia la expresión emocional, percepción negativa de las emociones, influuencia de la alimentación, el peso y la figura corporal en el estado de ánimo, necesidad de control y estrategias de afrontamiento. Participaron 368 mujeres: 78 con TCA, 145 en riesgo de TCA y 145 de un grupo de control normativo. La variable que mostró mayor capacidad discriminante de todos los tipos de riesgo frente al grupo de control fue la relativa a la influencia en el estado de ánimo. Asimismo, la baja autoestima mostró buena capacidad para discriminar el riesgo de purga/atracón, y el riesgo de anorexia y purga/atracón frente al grupo control; a su vez, las formas de afrontamiento acción impulsiva y expresión emocional mostraron buena capacidad para discriminar el riesgo de anorexia del grupo control. Estos resultados tienen implicaciones importantes tanto en el área de la evaluación como en el de la prevención de estos trastornos.

  12. Diabetes Mellitus como causa de perda auditiva Diabetes mellitus as etiological factor of hearing loss

    Directory of Open Access Journals (Sweden)

    Clícia Adriana S. Maia

    2005-04-01

    Full Text Available Os pacientes com diabetes mellitus freqüentemente apresentam sintomas como tontura, zumbidos e hipoacusia. Via de regra, a perda auditiva é do tipo sensorioneural, confundindo-se, por vezes, com presbiacusia, principalmente por ocorrer em pacientes acima dos 40 anos de idade. A angiopatia e a neuropatia causadas pelo diabetes mellitus têm sido considerados importantes fatores responsáveis pelas manifestações vestibulococleares nesses pacientes. Porém, existe controvérsia no que se refere à etiopatogênese da perda auditiva, sendo que parte dos autores advoga que ela ocorre devido à neuropatia, outra parte à angiopatia, e outra, ainda, à associação das duas. Porém há também os que entendem que o diabetes mellitus e a perda auditiva poderiam ser partes integrantes de uma síndrome genética e não dependentes entre si. Realizamos uma extensa revisão bibliográfica procurando analisar se há relação "causa e efeito" entre o diabetes mellitus e a perda auditiva. Pudemos observar que, apesar do grande número de estudos realizados, a controvérsia ainda é grande, sendo que novas perspectivas, como no campo da genética, estão sendo estudadas, mostrando que novos rumos podem ser tomados para se chegar à conclusão do tema.Patients with diabetes mellitus often show symptoms such as dizziness, tinnitus, and hearing impairment. In general, hearing loss is sensorineural, which is sometimes confused with presbycusis, mainly because it develops in patients older than 40 years of age. Angiopathy and neuropathy caused by diabetes mellitus have been considered important factors for the vestibular-cochlear disorders found in these patients. However, there is controversy regarding the etiopathogenesis of hearing loss, as some researchers support that it develops due to neuropathy, others say it is due to angiopathy, or even a combination of both. Yet, some researchers believe diabetes mellitus and hearing loss are part of a genetic

  13. Perceptual load corresponds with factors known to influence visual search.

    Science.gov (United States)

    Roper, Zachary J J; Cosman, Joshua D; Vecera, Shaun P

    2013-10-01

    One account of the early versus late selection debate in attention proposes that perceptual load determines the locus of selection. Attention selects stimuli at a late processing level under low-load conditions but selects stimuli at an early level under high-load conditions. Despite the successes of perceptual load theory, a noncircular definition of perceptual load remains elusive. We investigated the factors that influence perceptual load by using manipulations that have been studied extensively in visual search, namely target-distractor similarity and distractor-distractor similarity. Consistent with previous work, search was most efficient when targets and distractors were dissimilar and the displays contained homogeneous distractors; search became less efficient when target-distractor similarity increased irrespective of display heterogeneity. Importantly, we used these same stimuli in a typical perceptual load task that measured attentional spillover to a task-irrelevant flanker. We found a strong correspondence between search efficiency and perceptual load; stimuli that generated efficient searches produced flanker interference effects, suggesting that such displays involved low perceptual load. Flanker interference effects were reduced in displays that produced less efficient searches. Furthermore, our results demonstrate that search difficulty, as measured by search intercept, has little bearing on perceptual load. We conclude that rather than be arbitrarily defined, perceptual load might be defined by well-characterized, continuous factors that influence visual search. PsycINFO Database Record (c) 2013 APA, all rights reserved.

  14. Hedonism as a Decision Factor and Technologic UsageHedonismo como um Fator de Decisão e Uso TecnológicoHedonismo como un Factor de Decisión y Uso Tecnológico

    Directory of Open Access Journals (Sweden)

    ARRUDA FILHO, Emílio José Montero

    2013-09-01

    Full Text Available ABSTRACTIn the current selection and use of technological products, consumers prefer to adopt products which include new service packages and features. This article presents that all-in-one or integrated products are hedonic but explanation for use thereof is utilitarian. This paper analyzes factors of technological integration, hedonic and utilitarian behavior, in addition to the more traditional environmental factors of price, budget, brand, and choice. All variables presented can be considered decision factors or factors that change preference, given the inclusion of several integrations. Accordingly, we assessed smart phones with different services integrated, such as Internet, wireless, music, video, and camera functions. Our findings support our assertion that consumer preference is based on the integration of product features for both enjoyment and pleasure of use.RESUMOO uso de produtos tecnológicos na atualidade demonstra que consumidores preferem adotar novas tecnologias aliadas a pacotes de novos serviços incluídos nos produtos. Este artigo apresenta que produtos com multifuncionalidades ou integrações são hedônicos e possuem justificação de seu uso como se fossem utilitários, apresentando fatores de integração tecnológica, comportamento hedônico e utilitário, além de ambientes criados pelo preço, orçamento, marca e escolha, que seria o fato de comprarem o produto para si mesmos ou receberem-no como um presente. Todas as variáveis apresentadas servem como fatores de decisão ou mudanças de preferência, dada a composição de múltiplas integrações. Com isso, avaliam-se neste trabalho os dispositivos celulares conhecidos como smartphones, com diferentes serviços integrados, como internet, wireless, música, câmera fotográfica e câmera de vídeo, apresentando que mesmo quando esses produtos possuem maior qualidade, como produtos individuais, a preferência ainda é encorajada para equipamentos possuindo todas

  15. Tabaco y diabetes como factores de riesgo de enfermedades no transmisibles

    Directory of Open Access Journals (Sweden)

    Maria de la Caridad Casanova Moreno

    2014-10-01

    Full Text Available Sr. Editor: La tendencia actual en cuanto a las enfermedades no transmisibles y en especial a la diabetes mellitus se dirige a manejar el estado general del sujeto, donde el riesgo vascular ocupa un lugar importante para el control de la enfermedad, así como el aumento de peso, entre otros. En este tema, resulta muy importante la divulgación del artículo publicado en el Vol. 39, número 8 de agosto de 2014, titulado: Incidencia de factores de riesgo y modalidades de enfermedad ateroesclerótica en pacientes de Puerto Padre en el periodo comprendido entre mayo de 2012 y junio de 2013, donde se encontró que los factores de riesgo de enfermedad ateroesclerótica más incidentes fueron el hábito de fumar, la hipertensión arterial, la diabetes mellitus y la obesidad. La diabetes mellitus (DM se ha convertido en un creciente problema de salud en el mundo. Ahora se sabe que fumar causa diabetes tipo 2 (DM2, también conocida como la diabetes del adulto. Los fumadores tienen entre el 30 y el 40 % más de probabilidades de tener DM2 que los no fumadores. Mientras más cigarrillos fume una persona, más alto es su riesgo de DM. La DM puede producir complicaciones de salud graves como las enfermedades cardiacas, la ceguera, la insuficiencia renal y el daño en los nervios y los vasos sanguíneos de los pies y las piernas, lo cual puede llevar a situaciones como la amputación. Una persona con DM que fuma tiene más probabilidades de tener dificultad para regular la insulina y controlar la enfermedad que las personas con diabetes que no fuman. Tanto el tabaquismo como la diabetes causan problemas con el flujo de la sangre. Esto eleva el riesgo de ceguera y amputación. Los fumadores con DM, además, tienen más probabilidades de tener insuficiencia renal que las personas con diabetes que no fuman. (1 En Cuba la prevalencia de DM para el año 2013 fue de 53,7 x 1 000 habitantes., valor que aumentó con la edad, siendo para esta enfermedad los años de

  16. La identidad como geografía liminar. Nuevas ideas para la educación en artes visuales

    OpenAIRE

    Huerta, Ricard

    2013-01-01

    El concepto de identidad está vinculado a los gustos, las preferencias y las adscripciones de cada persona, tanto en el ámbito individual como en la relación que se mantiene con el colectivo. A lo largo de mi carrera profesional como formador de docentes me he interesado de forma muy especial por esta cuestión. Intento profundizar en la conciencia de grupo que existe entre los estudiantes de magisterio, abordando el tema desde sus narrativas personales. Por el hecho de dedicarme a la educació...

  17. DIABETES MELLITUS COMO FACTOR DE RIESGO DE DEMENCIA EN LA POBLACIÓN ADULTA MAYOR MEXICANA

    Science.gov (United States)

    Silvia, Mejía-Arango; Clemente, y Zúñiga-Gil

    2012-01-01

    Introduccion La diabetes mellitus y las demencias constituyen dos problemas crecientes de salud entre la población adulta mayor del mundo y en particular de los paises en desarrollo. Hacen falta estudios longitudinales sobre el papel de la diabetes como factor de riesgo para demencia. Objetivo Determinar el riesgo de demencia en sujetos Mexicanos con diabetes mellitus tipo 2. Materiales y Metodos Los sujetos diabéticos libres de demencia pertenecientes al Estudio Nacional de Salud y Envejecimiento en México fueron evaluados a los dos años de la línea de base. Se estudió el papel de los factores sociodemográficos, de otras comorbilidades y del tipo de tratamiento en la conversión a demencia. Resultados Durante la línea de base 749 sujetos (13.8%) tuvieron diabetes. El riesgo de desarrollar demencia en estos individuos fue el doble (RR, 2.08 IC 95%, 1.59–2.73). Se encontró un riesgo mayor en individuos de 80 años y más (RR 2.44 IC 95%, 1.46–4.08), en los hombres (RR, 2.25 IC 95%, 1.46–3.49) y en sujetos con nivel educativo menor de 7 años. El estar bajo tratamiento con insulina incrementó el riesgo de demencia (RR, 2.83, IC 95%, 1.58–5.06). Las otras comorbilidades que aumentaron el riesgo de demencia en los pacientes diabéticos fueron la hipertensión (RR, 2.75, IC 95%, 1.86–4.06) y la depresión (RR, 3.78, 95% IC 2.37–6.04). Conclusión Los sujetos con diabetes mellitus tienen un riesgo mayor de desarrollar demencia, La baja escolaridad y otras comorbilidades altamente prevalentes en la población Mexicana contribuyen a la asociación diabetes-demencia. PMID:21948010

  18. Comparação entre acuidade visual e photoscreening como métodos de triagem visual para crianças em idade escolar

    Directory of Open Access Journals (Sweden)

    Roberta Lílian Fernandes de Sousa

    2012-12-01

    Full Text Available OBJETIVO: Avaliar a sensibilidade do aparelho photoscreener na detecção de alterações oculares em crianças informantes, comparando os dados à acuidade visual obtida pela tabela E de Snellen. MÉTODOS: Foram avaliadas 500 crianças de idades entre 5 e 12 anos, de escola do município de Botucatu, estado de São Paulo. As crianças foram submetidas ao teste de acuidade visual pela tabela E de Snellen e foram fotografadas utilizando-se o aparelho photoscreenerTM system model MTI-PS100, seguindo-se a análise das fotos obtidas. RESULTADOS: Houve concordância negativa (criança com boa acuidade visual e teste negativo com o photoscreener em 81,0%; concordância positiva (acuidade visual alterada e teste positivo em 7,6% e não houve concordância de resultados em 11,0% dos casos. CONCLUSÃO: A avaliação comparativa entre o método da acuidade visual pela tabela E de Snellen e o photocreener para detecção de problemas visuais mostrou alta concordância. Os autores sugerem entretanto, a triagem usando tabelas de acuidade visual quando se trata de crianças informantes, devido aos custos com o aparelho.

  19. El Derecho Internacional de los Derechos Humanos como factor condicionante de la reforma y la mutación constitucional

    OpenAIRE

    Castro Padilla, Fernando

    2016-01-01

    La presente tesis doctoral parte del reconocimiento de la existencia de una serie de factores que identifican, actualmente, a distintos Estados democráticos iberoamericanos, a saber: 1.- Están dotados de Constituciones que se caracterizan por (i) ser textos normativos escritos, codificados y rígidos, (ii) que tienen la pretensión de consolidarse como normas con plena eficacia jurídica y como normas supremas dentro del ordenamiento jurídico estatal, y (iii) que tienen por propósito organiz...

  20. Los profesionales de secundaria, como factores de riesgo en el síndrome de Burnout

    OpenAIRE

    Giselle León-León

    2011-01-01

    Recibido 21 de julio de 2010 • Aceptado 31 de agosto de 2010 • Corregido 03 de octubre de 2010     Este artículo aborda el síndrome de Bournout, entendido como un trastorno de la adaptación ante el estrés crónico laboral que logra desencadenar síntomas físicos y psicológicos, los cuales dañan significativamente la ejecución profesional de los individuos que prestan servicios, en este particular, el trabajo de los docentes de secundaria, los cuales se describen como vulnerables por...

  1. Los profesionales de secundaria, como factores de riesgo en el síndrome de Burnout

    OpenAIRE

    León-León, Giselle

    2011-01-01

    Recibido 21 de julio de 2010 • Aceptado 31 de agosto de 2010 • Corregido 03 de octubre de 2010  Este artículo aborda el síndrome de Bournout, entendido como un trastorno de la adaptación ante el estrés crónico laboral que logra desencadenar síntomas físicos y psicológicos, los cuales dañan significativamente la ejecución profesional de los individuos que prestan servicios, en este particular, el trabajo de los docentes de secundaria, los cuales se describen como vulnerables por atender a adol...

  2. Educação em saúde inclusiva: o enfermeiro como ledor de tecnologia educacional para um deficiente visual

    OpenAIRE

    Borges, José Wicto Pereira; Souza, Ana Célia Caetano de; Moreira, Thereza Maria Magalhães; Loureiro, Aline Maria Oliveira; Meneses, Anaíze Viana Bezerra de

    2016-01-01

    O objetivo foi relatar o caso de inclusão de um deficiente visual em atividades de educação em saúde tendo o enfermeiro como ledor de uma tecnologia educacional. Trata-se de um estudo de caso realizado em Fortaleza-Ceará-Brasil. A investigação foi realizada a partir da Teoria de Virgínia Henderson. Foi diagnosticado Déficit de conhecimento. Aplicaram-se as escalas da NOC “conhecimento – controle da doença e processo da doença” para avaliar os resultados. Intervenções de enfermagem foram reali...

  3. La cadena de valor como factor esencial para el desarrollo de las empresas

    Directory of Open Access Journals (Sweden)

    Janeth Moreira de Vélez

    2012-12-01

    Full Text Available El análisis de la cadena de valor es una herramienta  moderna,  útil para establecer  los puntos fuertes y débiles en las actividades  de las empresas, pues  basa su  accionar  en  un análisis  interno detallado  de  los distintos "centros de actividad", y dentro de cada uno de ellos, de las actividades más representativas que despliegan las empresas en el día a día. La aplicación de ésta   herramienta  es  completamente  universal,  y no  se  circunscribe solamente   dentro  de  las  grandes  empresas  extranjeras y/o  nacionales, motivo por  el que,  la Dirección  de  la  Carrera de Administración de la Facultad  de Ciencias Administrativas y Económicas  de  la  Universidad Técnica de Manabí ha emprendido en un proyecto de investigacion titulado "Identificación  y Análisis  de  la  Cadena   de   Valor  de  los  negocios agroindustriales que aportan mayoritariamente al PIB de la provincia de Manabi.  Período  2008-2011 "  con  la  colaboración  de  los  docentes  y estudiantes de los últimos niveles  de  la carrera,  a efectos de demostrar también,  la  utilidad   del  análisis  de  la  cadena  de  valor  como factor fundamental para el desarrollo de la agroindustria en Manabi.

  4. Un modulador del ciclo visual como potencial tratamiento farmacológico de la DMAE seca y el Stargardt

    OpenAIRE

    Martín Nieto, José

    2010-01-01

    Un medicamento oral para la forma seca de la degeneración macular asociada a la edad (DMAE) ha entrado en la fase II de ensayos clínicos tras mostrar resultados positivos en cuanto a seguridad y eficacia en estudios previos preclínicos realizados en animales y en la fase I de ensayos en personas. Desarrollado por la compañía Acucela, el ACU-4429 es un compuesto no retinoide que actúa inhibiendo la regeneración de los pigmentos visuales y, con ello, ralentizando el ciclo visual y reduciendo la...

  5. AUXÍLIO AO PROCESSO DE INCLUSÃO DE ALUNOS COM DEFICIÊNCIA VISUAL COMO CONDIÇÃO PARA UMA APRENDIZAGEM DE QUALIDADE

    Directory of Open Access Journals (Sweden)

    Wellington Cantanhede Santos

    2013-09-01

    Full Text Available Esta pesquisa busca contribuir com a inclusão escolar de pessoas com deficiência visual, propondo mudanças no cotidiano da sala de aula, mediante a criação e produção de recursos de baixo custo que favoreçam a aprendizagem dos conhecimentos de Física do 2º ano do Ensino Médio. Discute a importância dos recursos na área de Física para alunos com deficiência visual e como contribuição principal, apresenta um conjunto de recursos elaborados e produzidos, com critério, mediante a contribuição e validação por parte de alunos com deficiência visual do 2º ano de Ensino Médio da Rede Estadual de Ensino, assistidos pelo Centro de Apoio Pedagógico para Atendimento às Pessoas Deficientes Visuais do Maranhão – CAP- MA. Os recursos elaborados referem-se aos conteúdos de lentes esféricas, comportamento óptico das lentes esféricas e construção geométrica das imagens, apresentando, também, algumas dicas para os professores tornarem o recurso o mais produtivo possível, mediante a interação dos alunos videntes com os alunos com cegueira ou baixa visão. Considera-se que este é um trabalho de extensa contribuição social, pois, com os recursos pensados e produzidos, os professores de Física podem, utilizando-os ou tomando-os como referência, dinamizar as suas aulas, favorecendo a inclusão dos alunos com deficiência visual.

  6. Cognitive factors in subjective stabilization of the visual world.

    Science.gov (United States)

    Bridgeman, B

    1981-08-01

    If an eye movement signal is fed through a galvanic mirror, to move a projected image which a subject is inspecting, prominent objects in the image may seem to jiggle or jump with the the eye when the gain is just below the threshold for detecting a jump of the entire image (Brune and Lücking 1969). We have refined and extended this observation with both naive and practiced subjects, finding results which contradict all of the current theories about the mechanism of stabilization of the visual world and suggest that cognitive factors in perception important influences on the stabilization process. Using this method with a paired photocell system to detect horizontal eye movements, some subjects saw a prominent object in the display jump slightly while the rest of the scene remained stable. The task was done first with landscape slides, then repeated with Escher prints where two sets of alternating figures completely filled the image. Subjects could concentrate on one set of forms as the "figure" and the other as the "ground", and reverse the two at will. In a majority of practiced subjects and in smaller proportion of naive subjects, motion of part of the "figure" was seen regardless of which alternative set of forms constituted it. Reversibility of the effect controlled for influence of object size, brightness, etc. in inducing the selective jump. These and related observations show that cognitive or attentional variables are as important as image properties or gain alone in determining subjective stabilization of the visual world, though current theories (inflow, outflow, cancellation, etc.) consider image position to be simple variable. Another experiment showed that image movement on the retina during saccades cannot explain saccadic suppression of displacement.

  7. El Tetris como mediador visual para el reconocimiento de movimientos rígidos en el plano (rotación y traslación

    Directory of Open Access Journals (Sweden)

    Jenny Patricia Acevedo Rincón

    2013-05-01

    Full Text Available El videojuego forma parte de la realidad de los jóvenes de la actualidad. En procura de aprovechar algunos beneficios del entorno visual del videojuego en el aula de matemáticas tales como: dinamizar la reflexión, desarrollar competencia de resolución de problemas y estimular capacidad deductiva, se desarrolló un proyecto de investigación que hace uso del videojuego en tareas de acercamiento a los conceptos geométricos de rotación y traslación. En este artículo presentamos un marco analítico para identificar procesos y habilidades de visualización que se desarrollan al aprovechar el videojuego como mediador visual y damos cuenta de un estudio investigativo a partir del cual ilustramos los efectos del uso del Tetris en la resolución de tareas desarrolladas por tres estudiantes con necesidades particulares de aprendizaje del Gimnasio Los Robles (Bogotá.

  8. La mediocridad como factor de violencia: entre la Ética y la Moral

    Directory of Open Access Journals (Sweden)

    Ricardo Romero Urrego

    2001-12-01

    Full Text Available En las circunstancias actuales que vive Colombia, ha venido haciendo carrera la actitud de no responsabilizarse por las propias acciones. Asumir que son otros los que deben hacer las cosas y tomar las decisiones. Esta actitud va reflejándose cada vez más como mediocridad y se expresa en no pocos confines de la vida cotidiana, en el trabajo, en el estudio, en todos los escenarios. Esta mediocridad contribuye a generar violencia social del más variado tipo.

  9. The photographic edition as a visual narrative construction A edição fotográfica como construção de uma narrativa visual

    Directory of Open Access Journals (Sweden)

    Fernanda Jansen Mira Catanho

    2007-01-01

    Full Text Available This article, based on the concept of intellectual montage, developed by russian movie director Sergei Eisenstein, works in the premises that the photographic edition may be responsible for the construction of a visual narrative. Thus, it adopts a photographic essay composed of 26 pictures and sends it to three specialists for edition. The results are three different narratives. With this, it becomes evident that the photographic message may undergo a creative rearrange and compose distinctive enunciation discourses. At the end, the work shows that the differences between the discourses elaborated by the editors are captured by the receiver of the photographic message. Este artigo, baseado no conceito de montagem intelectual, desenvolvido pelo cineasta russo Sergei Eisenstein, trabalha com a premissa de que a edição fotográfica pode ser responsável pela construção de uma narrativa visual. Para tanto, adota um ensaio fotográfico composto por 26 fotografias e o passa para três especialistas editá-lo. O resultado são três narrativas diferentes. Com isso, torna-se evidente que a mensagem fotográfica pode passar por uma re-elaboração criativa e formar discursos enunciativos distintos. Ao final, o trabalho mostra que as diferenças entre os discursos elaborados pelos editores são apreendidos pelo receptor da mensagem fotográfica.

  10. Trastornos de la conducta alimentaria como factor de riesgo para osteoporosis Eating disorders as risk factors for osteoporosis

    Directory of Open Access Journals (Sweden)

    Ma Teresa Rivera-Gallardo

    2005-07-01

    Full Text Available Los trastornos de la conducta alimentaria son comunes en mujeres jóvenes con una prevalencia estimada de entre 4-5%. La pérdida de masa ósea es una complicación física de la anorexia nervosa y trastorno alimentario no especificado que afecta tanto a hueso cortical como trabecular. El efecto sinérgico de la desnutrición y la deficiencia de estrógenos produce una pérdida de masa ósea a través del desacoplamiento entre resorción osteoclástica y formación osteoblástica. La severidad varía dependiendo de la duración de la enfermedad, el peso menor alcanzado y la actividad física. La repercusión a largo plazo es evidente pues existe un incremento en el riesgo de fractura en las pacientes que han padecido anorexia nervosa. La primera línea de tratamiento para recuperar la masa ósea es la rehabilitación nutricia y un incremento de peso. La terapia de reemplazo hormonal podría ser efectiva si se combina con métodos anabólicos. Los términos osteopenia y osteoporosis fueron adoptados para definir la deficiencia de masa ósea en adultos. Los autores de las publicaciones que fueron revisadas utilizaron dichos términos para definir datos densitométricos en sujetos jóvenes que no han alcanzado la masa ósea pico. Sugerimos el término "hipo-osteogenesia" para definir el desarrollo deficiente de masa ósea en adolescentes o niños.Eating disorders (TCA per its abbreviation in Spanish are common in young women, with an estimated prevalence of 4-5%. One of the physical complications of eating disorders, especially anorexia nervosa (AN and eating disorder not otherwise specified (TANE is bone mass loss, which affects both cortical and trabecular bone. The synergistic effect of malnutrition and estrogen deficiency produces significant bone mass loss, resulting from the uncoupling of bone turnover characterized by a decrease in osteoblastic bone formation and an increase in osteclastic bone resorption. The mechanisms implied in the

  11. La crisis de los frutos saludables como factor determinante de la "revolución de los comuneros"

    Directory of Open Access Journals (Sweden)

    Luis Rubén Pérez-Pinzón

    2014-07-01

    Full Text Available El artículo reflexiona acerca de los discursos e imaginarios tradicionales sobre la Revolución de los Comuneros en Colombia y los contrasta con los análisis socioculturales y las descripciones etiopatológicas de dos curas párrocos ilustrados y protomédicos del siglo XVIII en la Nueva Granada con el propósito de demostrar como factores determinantes de la revuelta popular de 1781 las dificultades monopólicas y tributarias para acceder a las yerbas, frutas y bebidas populares consideradas medicinales y saludables, así como fuentes del bienestar ambiental y la prosperidad socioeconómica de los más pobres.

  12. El miedo como factor de legitimación del desgobierno neoliberal

    Directory of Open Access Journals (Sweden)

    Antonio Giménez Merino

    2017-05-01

    Full Text Available La desigualdad que define nuestro tiempo obliga a reconsiderar la cuestión de qué tipo de legitimidad es la que permite sostener un mundo tan injusto y cómo es posible que éste no alumbre una respuesta organizada a la insatisfacción. Aquí se plantea que dicha legitimidad está conformada por una acumulación de elementos, entre los que destaca la política del miedo. El resultado es una imposición generalizada de las políticas neoliberales orientadas hacia un mismo fin, como estamos viendo en el caso de los países europeos azotados por la deuda en paralelo al más reciente caso de Brasil, ejemplo de lo que algunos ya denominan «golpes de estado blandos».

  13. Cervical cancer risk factors and feasibility of visual inspection with acetic acid screening in Sudan

    DEFF Research Database (Denmark)

    Ibrahim, Ahmed; Rasch, Vibeke; Pukkala, Eero

    2011-01-01

    To assess the risk factors of cervical cancer and the feasibility and acceptability of a visual inspection with acetic acid (VIA) screening method in a primary health center in Khartoum, Sudan.......To assess the risk factors of cervical cancer and the feasibility and acceptability of a visual inspection with acetic acid (VIA) screening method in a primary health center in Khartoum, Sudan....

  14. La metáfora como factor de textualidad en Ensayo sobre la lucidez, de José Saramago.

    Directory of Open Access Journals (Sweden)

    Olívia Maria Figueiredo

    2006-06-01

    Full Text Available La metáfora como factor de textualidad es una reflexión sobre el modo como el sistema de la lengua se operacionaliza en el discurso. En este caso concreto, como es que en la obra literaria Ensayo sobre la lucidez las expresiones idiomáticas (expresiones compósitas son transformadas de nuevo en expresiones metafóricas (expresiones componenciales. La incidencia del análisis se focaliza en la apreciación de cómo la expresión idiomática recupera su energía creadora y el primer impulso que la pone en circulación. Teniendo por fundamento las teorías de la anáfora (ampliada y de la reconceptualización, se muestra que tal reconversión se va haciendo a lo largo de la obra en un proceso de ampliación del enfoque cognitivo de que el recurso a las implicaturas es un trazo necesario para la comprensión de las explicaturas. Es preciso que el lector seleccione el contexto oportuno para entender pertinentemente el sentido comunicado. Y el sentido comunicado no es más que el cuestionamiento de la relación del hombre con el mundo por medio de la amplitud de escenarios metafóricos que sólo la lengua permite instaurar.

  15. Tipos de tabaquismo como factor de riesgo asociado a cáncer bucal. Reporte de dos casos

    Directory of Open Access Journals (Sweden)

    Martha Rebolledo Cobos

    2012-01-01

    Full Text Available El tabaquismo corresponde a uno de los hábitos más comunes en la población mundial, tanto en hombres como en mujeres, siendo un factor de riesgo para el desarrollo de lesiones neoplásicas malignas y premalignas en la cavidad bucal. Las diferentes formas de utilización de este hábito, como fumar cigarrillo de manera convencional, tabaquismo invertido y pasivo, presentan variables en cuanto a la incidencia y prevalencia de aparición de tumores, así como el tipo, cantidad y la intensidad de tabaco consumido. Las células epiteliales que recubren la mucosa bucal reaccionan como mecanismos de defensa ante el estímulo del humo y la combustión, al igual que frente a los sustancias químico- tóxicas que de ellos provienen; manifestándose como lesiones que varían entre leucoedemas, hiperqueratosis nicotínicas, fibrosis epiteliales, lesiones precancerosas, carcinomas in situ, hasta el desarrollo de verdaderas neoplasias malignas. El estomatólogo juega un rol fundamental en el diagnóstico oportuno y la prevención de estas afecciones, puesto que está entrenado para detectar cualquier lesión en estado incipiente, y así simplificar su tratamiento, mejorando la calidad de vida del paciente; pero mucho más importante que detectar la lesión es prevenir que aparezca, orientando, población y combatiendo los factores de riesgo. Se presentan dos casos de pacientes fumadoras activas que acudieron al servicio de Estomatología y Cirugía Oral de la Fundación Universitaria San Martín, sede Puerto Colombia, por presentar lesiones tumorales en cavidad bucal semejantes clínicamente a carcinomas bucales; a quienes se les realizaron biopsias que confirmaron diagnósticos de carcinoma escamocelular.

  16. El tabaco como factor de riesgo en el cáncer de pulmón

    OpenAIRE

    Fernández Hidalgo, Lorena

    2014-01-01

    El tabaco está compuesto por numerosas sustancias adictivas que producen efectos nocivos en la salud, tanto en sus consumidores activos, como en sus consumidores pasivos. Es considerado el principal factor de riesgo del cáncer de pulmón. Además, tras numerosos estudios, se ha apreciado una relación directa entre el número de cigarrillos consumidos, el tipo de cigarrillos, la edad de inicio de su consumo, el nivel de exposición y el desarrollo de esta enfermedad. A pesar de numerosas medidas a...

  17. Los intercambiadores de transporte público como factor determinante de la intermodalidad: El caso de la Ciudad de Madrid

    OpenAIRE

    Anguita Rodriguez, Francisca; Flores Ureba, Sandra; Muñoz Miguel, Juan Pedro

    2012-01-01

    XXIV Congreso Anual AEDEM del 9 al 11 de junio de 2010 El presente artículo aborda el desarrollo de la intermodalidad en el transporte urbano como factor relevante para la mejora de la movilidad urbana en las grandes ciudades. El crecimiento progresivo de la congestión, que afecta actualmente a las grandes ciudades consecuencia del desarrollo poblacional hacia las zonas metropolitanas más alejadas del centro urbano agrupadas en torno a los grandes corredores de acceso a la Ciudad, unido a ...

  18. Trastornos de la conducta alimentaria como factor de riesgo para osteoporosis Eating disorders as risk factors for osteoporosis

    OpenAIRE

    Ma Teresa Rivera-Gallardo; Ma del Socorro Parra-Cabrera; Jorge Armando Barriguete-Meléndez

    2005-01-01

    Los trastornos de la conducta alimentaria son comunes en mujeres jóvenes con una prevalencia estimada de entre 4-5%. La pérdida de masa ósea es una complicación física de la anorexia nervosa y trastorno alimentario no especificado que afecta tanto a hueso cortical como trabecular. El efecto sinérgico de la desnutrición y la deficiencia de estrógenos produce una pérdida de masa ósea a través del desacoplamiento entre resorción osteoclástica y formación osteoblástica. La severidad varía dependi...

  19. Factors Associated with Visual Fatigue from Curved Monitor Use: A Prospective Study of Healthy Subjects.

    Directory of Open Access Journals (Sweden)

    Haeng Jin Lee

    Full Text Available To investigate the factors associated with visual fatigue using monitors with various radii of curvature.Twenty normal healthy adults (8 men, 12 women; mean age, 26.2 ± 2.5 years prospectively watched five types of monitors including flat, 4000R, 3000R, 2000R, and 1000R curved monitors for 30 min. An experienced examiner measured the ophthalmological factors including near point of accommodation (NPA, near point of convergence (NPC, refraction, parameters during pupil response at light and saccadic movement just before and after the visual tasks. The questionnaires about subjective ocular symptoms were also investigated just before and after the visual tasks.The NPA increased after the visual tasks with a flat monitor compared with the curved monitors, with the 1000R curved monitor showing the smallest change (p = 0.020. The NPC increased for every monitor after the visual tasks; the largest increase occurred with the flat monitor (p = 0.001. There was no difference in refractive error, pupil response, or saccadic movement in the comparison of before and after the visual tasks. Among the nine factors in the questionnaire, the score of "eye pain" was significantly higher for the flat monitor versus the 1000R curved monitor after the visual tasks (p = 0.034.We identified NPA, NPC, and eye pain as factors associated with visual fatigue. Also, the curvature of the monitor was related to the visual fatigue.

  20. Visual attention: the interplay between ad characteristics and context factors

    NARCIS (Netherlands)

    Boerman, S.; Smit, E.; van Meurs, A.

    2011-01-01

    Using eye-tracking data, we tested what elements of the ad are able to catch the eye and whether the context of the ad can draw visual attention away. Characteristics of 183 magazine ads and their direct context were systematically coded and linked to eye-tracking data. Results showed that indeed ad

  1. Poliglobulia como factor de riesgo en Hipertensión Arterial

    OpenAIRE

    María Ximena Tapia Paguay; Viviana Margarita Espinel Jara; Rocío Elizabeth Castillo Andrade; Amparo Paola Tito Pineda

    2017-01-01

    La incidencia de complicaciones trombóticas es mayor en pacientes con diagnóstico de poliglobulia. Los episodios más frecuentes son accidentes cerebrovasculares (ACVA), infarto de miocardio, trombosis venosa profunda y tromboembolismo pulmonar. Además, los pacientes con policitemia vera pueden presentar hemorragias en el tracto gastrointestinal, por un descenso relativo de los factores de la coagulación y en algunos casos trastornos funcionales de las plaquetas, y una mayor incidencia de úlce...

  2. Poor final visual outcome after traumatic hyphema: A retrospective study of associated factors

    Directory of Open Access Journals (Sweden)

    Ayda Khalfan Al Ali

    2012-09-01

    Full Text Available OBJECTIVES: To determine the factors associated with a poor final visual outcome following a non-perforating traumatic hyphema. METHODS: The in-patient records of all traumatic hyphema patients admitted to the Department of Ophthalmology of the Hamad Medical Centre (HMC in Doha, Qatar, were retrospectively reviewed for a four-year period from January 2004 to March 2008. One hundred and seventeen patients who did not meet the exclusion criteria were divided into two groups based on their final visual outcome post-treatment. Group 1 (good outcome consisted of 100 patients with a visual acuity (VA of 6/18 or better and group 2 (worse outcome consisted of 17 patients with a VA of less than 6/18. The two groups were compared to determine the factors associated with a poor final visual outcome. RESULTS: Group 2 patients had an 82.3% incidence of complications after a traumatic hyphema compared with a 21% incidence in group 1. Of these complications, secondary glaucoma and rebleeding were significantly associated with a worse final visual outcome. Trauma from projectiles or blows did not differ significantly in their effect on the final visual outcome, although blow injuries had a greater impact on the final visual outcome. Posterior segment injuries were associated with a worse visual outcome. CONCLUSION: It was concluded that secondary glaucoma, rebleeding, and posterior segment injuries are factors associated with a poor final visual outcome.

  3. FACTORS ASSOCIATED WITH VISUAL OUTCOME AFTER MACULA-OFF RHEGMATOGENOUS RETINAL DETACHMENT SURGERY.

    Science.gov (United States)

    Park, Dae Hyun; Choi, Kyung Seek; Sun, Hae Jung; Lee, Sung Jin

    2018-01-01

    To evaluate preoperative factors influencing the visual outcome and postoperative factors associated with the changes in visual acuity, after reattachment surgery to treat macula-off rhegmatogenous retinal detachment. A total of 180 eyes of 180 patients who underwent reattachment surgery to treat macula-off rhegmatogenous retinal detachment, and who were followed up for more than 12 months, were reviewed retrospectively. Preoperative and postoperative characteristics, including optical coherence tomography findings, were comprehensively analyzed using univariate and multivariate models to evaluate preoperative factors influencing best-corrected visual acuity 12 months after macula-off rhegmatogenous retinal detachment surgery and postoperative factors associated with changes in best-corrected visual acuity after surgery. Preoperatively, the extent of detachment (P = 0.037), macula-off duration (P macula-off rhegmatogenous retinal detachment surgery were the extent of detachment, macula-off duration, and external limiting membrane integrity. Postoperatively, predictive factors were the outer retinal microstructures, particularly the photoreceptor outer segment layer.

  4. Hipertrofia ventricular izquierda como factor de riesgo cardiovascular en el paciente hipertenso

    OpenAIRE

    Llancaqueo V. Marcelo, Dr.

    2012-01-01

    La hipertrofia ventricular izquierda es una respuesta maladaptativa a la sobrecarga de presión crónica y un factor de riesgo importante para la fibrilación auricular, insuficiencia cardíaca diastólica, insuficiencia cardíaca sistólica, y la muerte súbita en pacientes con hipertensión. Dado que no todos los pacientes con hipertensión desarrollan hipertrofia ventricular izquierda, hay hallazgos clínicos que se deben tener en cuenta que puede alertar al médico sobre la presencia de hipertrofia v...

  5. Factores perinatales como predictores de severidad de la enfermedad de membrana hialina

    OpenAIRE

    Caballero Díaz, María Elvinia; Báez Camacho, Martha Lucía; Blanco Galindo, Humberto

    2010-01-01

    Objetivo: determinar los factores de riesgo asociados a la mayor severidad de EMH. Materiales y Métodos: estudio observacional con componente analítico tipo casos y controles. Resultados: total de pacientes 64, 13 (20.3%) con EMH severa y 51 EMH leve moderada. Se encontró relación entre la ruptura prematura de membranas, la cesárea sin trabajo de parto, la asfixia-acidosis fetal y la infección neonatal temprana con mayor requerimiento surfactante p

  6. Capacidad administrativa como factor de eficiencia interna y global de las organizaciones

    Directory of Open Access Journals (Sweden)

    Carlos E. Martínez Fajardo

    1997-06-01

    Full Text Available El concepto de eficiencia ha sido precisado y simplificado por los autores de la teoría clásica de la administración en el sentido de maximizar la producción de las organizaciones con los mínimos costos. En el presente artículo se analizará la eficiencia interna y global de las organizaciones de acuerdo con nuevos criterios adicionales que permitan estudiar el problema con un enfoque de mayor complejidad la naturaleza, fines y estructura de las organizaciones, entre ellos la incidencia del factor de este siglo denominado capacidad administrativa.

  7. Los espacios y la frecuencia de contacto con la diversidad cultural como factores de desarrollo de la sensibilidad intercultural

    Directory of Open Access Journals (Sweden)

    Paola Ruiz-Bernardo

    2018-01-01

    Full Text Available La globalización, y en particular sus grandes movimientos migratorios, está transformando la realidad socio-cultural de las ciudades. Estos cambios no pasan desapercibidos entre sus habitantes y, por ello, este artículo aborda el desarrollo de la sensibilidad intercultural (SI mediante la influencia de la frecuencia y los espacios que se comparten con personas de diferentes culturas. Se analizan dos factores relativos a la teoría de contacto intergrupal (TCI según los cuales se podría favorecer el desarrollo de la actitud señalada (SI. El estudio, realizado en la provincia de Castellón (España, es de tipo descriptivo de carácter correlacional. Los resultados revelan que son más sensibles, interculturalmente, aquellos que “a diario” conviven con la diversidad cultural y los que comparten espacios de mayor intimidad, como “el hogar” o “el grupo de amigos”, con personas de diferentes culturas. Se resalta la importancia de generar espacios de encuentros como estrategia de intervención socio-comunitaria y pedagógica que facilite la convivencia y cohesión social.

  8. El desarrollo local y empresarial: La formación como factor básico para orientar al emprendedor

    Directory of Open Access Journals (Sweden)

    Juan Uribe Toril

    2013-09-01

    Full Text Available Objeto: El presente artículo es un recorrido que se inicia con el repaso de las principales teorías del desarrollo local para adentrarse en el emprendedor y en el fomento de la cultura emprendedora en ámbitos rurales como medio de impulso del progreso local. También, estudiaremos la influencia de factores personales del emprendedor (experiencia, situación,… en la constitución de empresas y cómo afecta el nivel formativo (en sentido amplio en el desarrollo económico y del espíritu emprendedor a través de variables latentes, que se traduce en creación de nuevas empresas.Diseño/metodología: La investigación parte de un análisis y recopilación de la literatura existente en desarrollo local para pasar a un estudio transversal mediante procedimiento de encuesta directa. Para el tratamiento de la información obtenida se ha utilizado el análisis de clases latentes.Resultados: Del análisis de los datos se desprenden dos conclusiones principales: que la formación de partida y continua, la situación personal y el propio entorno, se configuran de una manera directa en el espíritu emprendedor y que programas de desarrollo permiten realizar diseños con garantías de éxito. De estas conclusiones emanan cinco reflexiones.Limitaciones: Encontramos una delimitación geográfica al haber sido entrevistadas empresas de la comunidad andaluza, aunque presumimos que, al centrarnos en localidades de baja densidad de población, son perfectamente extrapolables a otras zonas.Implicaciones prácticas: El estudio es de utilidad a los agentes sociales encargados del diseño de programas de capacitación empresarial y de la organización y control de herramientas potenciadoras de cultura emprendedora en entornos rurales.Implicaciones sociales: Fomento de empresas en entornos rurales que permiten disminuir la despoblación de los pueblos y mitigar la concentración humana en grandes urbes. Asimismo, a través del crecimiento económico de estos

  9. EL PERFIL COMPETITIVO LOCAL COMO FACTOR DETERMINANTE PARA EL DESARROLLO DE LA FLORICULTURA EN MADRID (CUNDINAMARCA

    Directory of Open Access Journals (Sweden)

    DANIEL HERNÁN SANTIAGO ROMERO

    2011-01-01

    Full Text Available Este artículo describe los atributos del perfil competitivo del municipio de Madrid y establece las relaciones que, con dicho perfil, ha tenido el desarrollo de cultivos de flores. Se parte de la descripción de la situación actual de la industria de la floricultura en el país. Después, tras establecer los determinantes que desde la teoría se han propuesto para medir la competitividad de un territorio, se analiza el caso particular del municipio de Madrid y define los atributos competitivos que lo caracterizan. Se presentan las relaciones entre el perfil competitivo del municipio y la floricultura, mostrando cómo aquél, se convirtió en un factor determinante para dicha actividad económica. Finalmente se presentan las conclusiones del artículo, las cuales son antecedidas por la presentación de los elementos que representan la mayor fortaleza para el desarrollo económico del municipio en el futuro.

  10. Hipertrofia ventricular izquierda como factor de riesgo cardiovascular en el paciente hipertenso

    Directory of Open Access Journals (Sweden)

    Llancaqueo V. Marcelo, Dr.

    2012-11-01

    Full Text Available La hipertrofia ventricular izquierda es una respuesta maladaptativa a la sobrecarga de presión crónica y un factor de riesgo importante para la fibrilación auricular, insuficiencia cardíaca diastólica, insuficiencia cardíaca sistólica, y la muerte súbita en pacientes con hipertensión. Dado que no todos los pacientes con hipertensión desarrollan hipertrofia ventricular izquierda, hay hallazgos clínicos que se deben tener en cuenta que puede alertar al médico sobre la presencia de hipertrofia ventricular izquierda por lo que una evaluación más definitiva se puede realizar utilizando un electrocardiograma, ecocardiograma o la resonancia magnética cardiovascular. Control de la presión arterial, la restricción de sodio, y la pérdida de peso de forma independiente facilitar la regresión de la hipertrofia ventricular izquierda. Elección de un fármaco antihipertensivo puede ser importante cuando se trata a un paciente con hipertrofia ventricular izquierda hipertensiva. Los inhibidores de la enzima convertidora o bloqueadores del receptor de angiotensina II, seguido por los antagonistas de los canales de calcio, facilitan más rápidamente la regresión de la hipertrofia ventricular izquierda. Con la regresión de la hipertrofia ventricular izquierda, la función diastólica y la reserva de flujo coronario generalmente mejoran, y disminuye el riesgo cardiovascular.

  11. Tags cloud como metáfora visual del legado investigador de la Dra. Rosario Camacho Martínez, según ISOC.

    Directory of Open Access Journals (Sweden)

    José Pino-Díaz

    2013-01-01

    Full Text Available El etiquetado de contenidos en la web se basa en el mismo concepto que las palabras clave en los documentos científicos, sintetizar en pocas palabras un texto o una imagen. Los artículos científicos son etiquetados mediante palabras clave por el autor del texto y mediante los descriptores, de un vocabulario controlado (índice o tesauro, por el documentalista indizador de la base de datos. En la web 2.0 los usuarios etiquetan los contenidos que crean mediante palabras del lenguaje natural; esta forma popular de clasificación o taxonomía se denomina folksonomía. En las bases de datos documentales los índices y los tesauros facilitan la búsqueda y la recuperación de información. En la web 2.0 la nube de etiquetas o tag cloud está ideada para que el usuario recupere información de una manera sencilla, visual. Tanto en un caso como en otro, las etiquetas (palabras clave, keywords, tags son procesadas por el sistema de gestión de la base de datos o del sitio web para obtener los documentos o contenidos a los que hacen referencia.

  12. El capital social como factor de éxito en microempresas rurales que elaboran productos procesados de nopal en Tlaxcala

    Directory of Open Access Journals (Sweden)

    Ingrid Anaid Toiber Rodríguez

    2017-01-01

    Full Text Available En México alrededor de 200,000 empresas se crean cada año, sin embargo, únicamente el 35% de ellas sobreviven después de dos años de operación. Entre las causas más importan-tes de este problema se encuentran la falta de acceso al financiamiento, fuerza de trabajo ca-rente de habilidades y deficiente información so-bre oportunidades de mercado. Dos estrategias comúnmente adoptadas por las empresas son la capacitación de sus integrantes y la participa-ción en asociaciones, como la Red Nacional de Desarrollo Rural Sustentable (Rendrus. El objetivo de este estudio fue identificar los factores de éxito de microempresas rurales que se dedican a la producción de productos procesados de nopal, en el estado de Tlaxcala, México, que han participado en las reuniones de la Rendrus. Metodología. Se utilizó la téc-nica de investigación de “Estudios de casos”, entrevistando a diversos integrantes de tres empresas. Los resultados indican que las em-presas han sobrevivido en el mercado gracias a su capital social, como el principal factor del éxito, manifestado a través de sus procesos or-ganizativos, compromiso, dedicación y soli-daridad, les ha permitido enfrentar las limi-tantes en relación a la disponibilidad de tecnología, problemas de mercadeo y canales de comercialización limitados, niveles bajos de ventas y esquemas limitados de innovación.

  13. Visual control as a key factor in a production process of a company from automotive branch

    Directory of Open Access Journals (Sweden)

    Stanisław Borkowski

    2013-04-01

    Full Text Available This article presents a theoretical basis for one type of control in enterprises – visual control. It presents the meaning of visual control in the Toyota Production System and BOST researches as a tool of measure, among other things, the importance of visual control in production companies. The level of importance of visual control usage as one of the production process elements in the analysed company was indicated. The usage of visual control is a main factor in a production process of the analyzed company, the factor which provides continuous help to employees to check whether the process differs from the standard. The characteristic progression of production process elements was indicated and the SW factor (the use of visual control took the third place, PE factor (interruption of production when it detects a problem of quality turned out to be the most important one, while the least important was the EU factor (granting power of attorney down. The main tools for this evaluation: an innovative BOST survey - Toyota's management principles in questions, in particular, the Pareto-Lorenz diagram, radar graph and series of importance as graphical interpretation tools, were used to present the importance of each factor in relation to individual assessments.

  14. Comparing the effect of visual and non-visual music on functional factors in a progressive aerobic exercise program

    Directory of Open Access Journals (Sweden)

    Faezeh Alizadeh

    2017-10-01

    Full Text Available  Objective: Aerobic exercises have a significant effect on losing weight and increasing the energy levels. This research aimed to increase the fatigue time in this type of exercises, making it more enjoyable.  Method: In this study, eight physical education female students with the same preparedness level were selected by random sampling. The subjects participated ina periodic aerobic exercise during three stages with an interval of 48 hours. The test was based on the Bruce Protocol, which measured the burnout, the maximum oxygen consumption, the perceived exercise pressure, and the heart rate in each stage.  Findings: the results revealed that there was a significant difference in the subjects’ burnout time (p = 0.039 while the impact of the visual music compared to the non-visual music in perceiving the exercise pressure was significantly different (p = 0.034. Nonetheless, while measuring the heart rate (p = 0.443, the maximum oxygen consumption (p <0.05 had no significant effect.  Conclusion: In was found in the current research that the visual music can be a stronger factor than the non-visual music in making the exercise more enjoyable and increasing the fatigue time.

  15. Environmental Factors that Determine Visual Skill Development of ...

    African Journals Online (AJOL)

    2017-10-26

    Oct 26, 2017 ... development and environmental risk factors influencing it provides useful guide for early ..... sporting activities, video games, and play with large mobile toys .... in the brain: Implications for explaining autism. Science. 2005 ...

  16. Prevalence, Causes and Social Factors of Visual Impairment among Chinese Adults: Based on a National Survey.

    Science.gov (United States)

    Guo, Chao; Wang, Zhenjie; He, Ping; Chen, Gong; Zheng, Xiaoying

    2017-09-08

    Visual impairment has become a global challenge, especially for developing countries. This study aims to estimate the prevalence, causes and social factors of visual impairment among Chinese adults. Data were from a nationally representative population-based cross-sectional study. The study population were 1,909,199 non-institutionalized adults aged 18 years and older in mainland China. In the survey, low vision and blindness were checked by ophthalmologists according to the WHO best-corrected visual acuity (BCVA) criteria. Population weighted numbers and prevalence of low vision and blindness with 95% confidence intervals (CIs) were estimated where appropriate. Multivariable logistic regression analysis was used to identify the social factors of visual impairment. The weighted prevalence of visual impairment was 17.17 (95% CI, 16.84-17.50) per 1000 Chinese adults aged 18 years and older. Cataract (57.35%), disorders of choroid and retina (9.80%), and disorders of cornea (6.49%) contributed more than 70 percent to the visual impairment in Chinese adults. Older age groups, young or middle-aged male adults, female elders, illiterate, rural dwellers, non-eastern residents, singles, unemployment, and from family with lower income were associated with visual impairment. More efforts are warranted to enhance treatment and rehabilitation among people with eye disorders to prevent visual impairment.

  17. Nutritional factors and visual function in premature infants.

    Science.gov (United States)

    Jewell, V C; Northrop-Clewes, C A; Tubman, R; Thurnham, D I

    2001-05-01

    Approximately 5-7% of all infants are born prematurely, and birth before 37 weeks is the most common cause of neonatal mortality, morbidity and long-term disability. Premature infants are poorly equipped for life outside the womb, and oxidant stress has been implicated in the aetiology of visual impairment in these infants, who are often exposed to increased O2 concentrations and high light intensity in neonatal units. The carotenoids lutein and zeaxanthin, which give the macular area of the eye its yellow colour, are located in the retinal pigment epithelium of the eye, and are believed to play a role in protecting it against oxidative and light damage. The macular pigments are of dietary origin, and green leafy vegetables are the primary source of lutein and zeaxanthin. Lutein is one of the five most common carotenoids found in the diet. There is current interest in the macular pigment in relation to age-related macular degeneration, but these pigments may also have a protective role in the retinal pigment epithelium of the newborn infant. Little information is available on blood lutein and zeaxanthin levels in neonates. Levels of lutein in human milk are two to three times higher than those of beta-carotene, whereas their concentrations in the mothers' blood are approximately the same. Human milk is the main dietary source of lutein and zeaxanthin for infants until weaning occurs. The biochemical mechanisms which mediate the transport of the macular carotenoids into the eye are not known, but tubulin has been identified as the major carotenoid-binding protein, and may play a role in the physiology of the macula.

  18. Factors affecting visualization of posterior rib fractures in abused infants

    International Nuclear Information System (INIS)

    Kleinman, P.K.; Adams, V.I.; Blackbourne, B.D.; Marks, S.C.

    1987-01-01

    Rib fractures in abused infants commonly occur in the posterior rib arcs. Fractures occurring near the costovertebral articulations are usually identified radiographically only once callus has formed. To assess the factors influencing the visibility of fractures near the costovertical articulations, the authors studied 103 posterior rib fractures occurring in 16 abused infants. Radiologic findings were correlated with CT findings and pathologic material from nine ribs in four patients. The limited visibility of fractures relates to (1) the frequent superimposition of the transverse process over the rib fracture site, (2) a fracture line that crosses at an obliquity to the x-ray beam, and (3) nondisplacement of rib fragments due to preservation of the posterior periosteum. Fresh rib fractures invisible on a frontal projection may be clearly defined on axial CT scans, or on postmortem radiographs. A knowledge of the factors influencing the visibility of these important injuries is useful in planning an appropriate diagnostic evaluation of suspected infant abuse

  19. La evanescencia del pueblo y los usos del romancero como factor de identidad política

    Directory of Open Access Journals (Sweden)

    Díaz Viana, Luis

    2011-10-01

    Full Text Available The compilation and study of the ballad tradition in general and the romancero in particular, have constituted, since they began to wake up the interest of the romantic folklorists, a specially propitious field to be used like factor of reconstruction of political identities. The fact that music and text they are in all ballad traditions united and combined fosters that potentiality. What this work discusses is why in the case of romancero the dominant tendency in research has been characterized until present times by the approach on a national or Hispanic scale, getting to even advise against the practice of the regional or provincial collections. And what methodological changes have been carried out by this position, which cannot be separated, on the other hand, from a theoretical concept of folk as national folk and which determines, in parallel, the evanescence and liquation of located and particular people, those who not only transmit, but also create culture, the true folk.

    La recopilación y el estudio de la balada en general, y del romancero en particular, ha constituido, desde que se empieza a despertar el interés de los folkloristas románticos, un campo especialmente propicio para ser utilizado como factor de reconstrucción de identidades políticas. El hecho de que música y texto estén en toda baladística inseparablemente unidos favorece esa potencialidad. Lo que este trabajo se plantea es por qué en el caso del romancero la tendencia dominante en su estudio se ha caracterizado hasta el presente por un enfoque a escala nacional o hispánico, llegando a desaconsejarse incluso la práctica de las colecciones regionales o provinciales. Y qué condicionamientos metodológicos ha acarreado esta postura, a la que no se puede desligar –de otro lado– de una determinada concepción teórica de pueblo, como pueblo-nación, la cual viene a determinar –paralelamente– la evanescencia y licuación de una gente o pueblo m

  20. Proteopedia: 3D Visualization and Annotation of Transcription Factor-DNA Readout Modes

    Science.gov (United States)

    Dantas Machado, Ana Carolina; Saleebyan, Skyler B.; Holmes, Bailey T.; Karelina, Maria; Tam, Julia; Kim, Sharon Y.; Kim, Keziah H.; Dror, Iris; Hodis, Eran; Martz, Eric; Compeau, Patricia A.; Rohs, Remo

    2012-01-01

    3D visualization assists in identifying diverse mechanisms of protein-DNA recognition that can be observed for transcription factors and other DNA binding proteins. We used Proteopedia to illustrate transcription factor-DNA readout modes with a focus on DNA shape, which can be a function of either nucleotide sequence (Hox proteins) or base pairing…

  1. El álbum visual como nueva forma promocional de la industria de la música: el caso de Let England Shake de PJ Harvey y Seamus Murphy

    Directory of Open Access Journals (Sweden)

    Ana María Sedeño-Valdellós

    2016-01-01

    Full Text Available El nuevo modelo de negocio para la industria fonográfica comienza a basar se en los contenidos digitales. Varios autores han estudiado y afirman que la industria musical experimenta un giro hacia el contenido audiovisual. Esto se enmarca en una nueva etapa de estética audiovisual caracterizada por la transmedialidad y la convergencia de medios en torno a formatos audiovi suales complejos. El álbum visual, como concepto formado por videoclips de todas las canciones de un disco, se consolida como un nuevo formato de promocional musical, híbrido entre cine y video musical. En el traba jo se realizará un análisis del álbum visual Let England Shake (PJ Harvey & Seamus Murphy, 2011, con unos criterios que tratan de buscar moti vos visuales que generen continuidad, unidad temática y narrativa para de mostrar su intensa coherencia con el álbum musical precedente. Se trata de definir el álbum visual y comenzar a delimitarlo frente a otros tipos de productos audiovisuales, así como examinar sus posibilidades de creación de sentido en la generación de una narrativa personal diferenciada para un artista/grupo musical.

  2. Visual features for perception, attention, and working memory: Toward a three-factor framework.

    Science.gov (United States)

    Huang, Liqiang

    2015-12-01

    Visual features are the general building blocks for attention, perception, and working memory. Here, I explore the factors which can quantitatively predict all the differences they make in various paradigms. I tried to combine the strengths of experimental and correlational approaches in a novel way by developing an individual-item differences analysis to extract the factors from 16 stimulus types on the basis of their roles in eight tasks. A large sample size (410) ensured that all eight tasks had a reliability (Cronbach's α) of no less than 0.975, allowing the factors to be precisely determined. Three orthogonal factors were identified which correspond respectively to featural strength (i.e., how close a stimulus is to a basic feature), visual strength (i.e., visual quality of the stimulus), and spatial strength (i.e., how well a stimulus can be represented as a spatial structure). Featural strength helped substantially in all the tasks but moderately less so in perceptual discrimination; visual strength helped substantially in low-level tasks but not in high-level tasks; and spatial strength helped change detection but hindered ensemble matching and visual search. Jointly, these three factors explained 96.4% of all the variances of the eight tasks, making it clear that they account for almost everything about the roles of these 16 stimulus types in these eight tasks. Copyright © 2015 Elsevier B.V. All rights reserved.

  3. Use of a twin dataset to identify AMD-related visual patterns controlled by genetic factors

    Science.gov (United States)

    Quellec, Gwénolé; Abràmoff, Michael D.; Russell, Stephen R.

    2010-03-01

    The mapping of genotype to the phenotype of age-related macular degeneration (AMD) is expected to improve the diagnosis and treatment of the disease in a near future. In this study, we focused on the first step to discover this mapping: we identified visual patterns related to AMD which seem to be controlled by genetic factors, without explicitly relating them to the genes. For this purpose, we used a dataset of eye fundus photographs from 74 twin pairs, either monozygotic twins, who have the same genotype, or dizygotic twins, whose genes responsible for AMD are less likely to be identical. If we are able to differentiate monozygotic twins from dizygotic twins, based on a given visual pattern, then this pattern is likely to be controlled by genetic factors. The main visible consequence of AMD is the apparition of drusen between the retinal pigment epithelium and Bruch's membrane. We developed two automated drusen detectors based on the wavelet transform: a shape-based detector for hard drusen, and a texture- and color- based detector for soft drusen. Forty visual features were evaluated at the location of the automatically detected drusen. These features characterize the texture, the shape, the color, the spatial distribution, or the amount of drusen. A distance measure between twin pairs was defined for each visual feature; a smaller distance should be measured between monozygotic twins for visual features controlled by genetic factors. The predictions of several visual features (75.7% accuracy) are comparable or better than the predictions of human experts.

  4. GF-GC Theory of Human Cognition: Differentiation of Short-Term Auditory and Visual Memory Factors.

    Science.gov (United States)

    McGhee, Ron; Lieberman, Lewis

    1994-01-01

    Study sought to determine whether separate short-term auditory and visual memory factors would emerge given a sufficient number of markers in a factor matrix. A principal component factor analysis with varimax rotation was performed. Short-term visual and short-term auditory memory factors emerged as expected. (RJM)

  5. La diversidad en aves como factor determinante de la interacción entre ecosistemas del departamento del Huila

    Directory of Open Access Journals (Sweden)

    Alfredo Ramos Moreno

    2012-01-01

    Full Text Available En este estudio se realizó una descripción y análisis, en primera aproximación, de la oferta en diversidad de aves en el predio La Primavera, vereda Estambul, municipio de Teruel, departamento del Huila. A partir de la información generada, se procedió a comparar los resultados obtenidos con los reportes de aves inventariadas en el estudio GEMA (2006 desarrollado por el Instituto de Investigación de Recursos Biológicos Alexander Von Humboldt, en el Corredor Biológico entre los PNN Puracé y Cueva de Los Guácharos, con el fin de determinar la relación entre estos espacios naturales a partir del concepto de interacción entre ecosistemas, entendido como las relaciones de suministro, flujo e intercambio de materiales, energía o información, que para el casoque compete al estudio se refiere al movimiento de aves de un ecosistema a otro. El predio La Primavera, ubicado en el municipio de Teruel en el occidentedel departamento del Huila, a una altitud promedio de 900 m. s. n. m., perteneciente a la zona de vida de bosque seco tropical, sirvió de sitio de trabajo para la identificación de 32 especies de aves medianteobservación visual directa y captura con redes de niebla, de las cuales hubo dos familias que resultaron comunes a los dos estudios, pertenecientes a laThraupinae (tángaras y Tyrannidae (atrapamoscas, lo cual indica su capacidad de adaptación a pisos altitudinales diferentes. Caso particular merece la especie Tangara vitriolina (tángara rastrojera, la cual está considerada casi endémica, lo que se traduce en una alta vulnerabilidad y de especial cuidado yvigilancia. Se sugiere la realización de otras valoraciones similares en sitios que permitan establecer esta conexión ecosistémica con el fin de identificar aquellas especies que presenten características comunes para ecosistemas diferentes.

  6. Consideración del factor Percepción Visual en el material bibliográfico sobre

    Directory of Open Access Journals (Sweden)

    Letelier Parga, Sofía

    2002-07-01

    Full Text Available Pesquisa, análisis y reflexión sobre los tópicos manejados en la postulación y discusión acerca de la movilidad urbana sostenible, que aluden o consideran explícita o implícitamente en algún grado la incidencia del factor Percepción Visual. El estudio se circunscribe a los postulados, estrategias, instrumentos, normativas, ejemplos y sugerencias proporcionados como bibliografía básica y complementaria al curso "Movilidad y Planeamiento Sostenible". Para su revisión se elige el enfoque de la Percepción Visual (PV, dada la necesidad que tiene la filosofía de la sostenibilidad de concluir en 'artes' concretas, dispositivos, señaléticas y demás artilugios que deben ser captados a distancia, para finalmente inducir conductas y comportamientos. De no ser así, no se alcanzarían resultados esperados. Este enfoque se aplica, primero, bajo la hipótesis de que la PV , no obstante ser un filtro que se apropia personalizadamente de la realidad, se apoya en mecanismos comunes a la especie pero también culturales que responden y son centralmente activados y condicionados por atributos específicos de los estímulos o por condiciones de su contexto, lo que hace que el fenómeno de la PV en sus rasgos y efectos globales estructurales , pueda ser anticipado o vaticinado. En segundo lugar, suponiendo que la PV, por ser un fenómeno activo - que 'construye la realidad' en el circuito de las significaciones e 'ideas significativas'- es una experiencia que tanto promueve como inhibe conductas y comportamientos determinados. Para el efecto, luego de una puesta en común de los aspectos de la PV que se estiman a priori como incidentes a la escala urbana y a objeto de explicitar el alcance y profundidad que nos ocupa, nos abocamos a constatar la existencia de rasgos inductores, reforzadores o facilitadores de la percepción visua,l o bien que son disuasivos, distractores, ambiguadores o entorpecedores, perceptuales , deduciendo sus efectos y

  7. El estrato socioeconómico como factor predictor del uso constante de condón en adolescentes

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    Caballero Hoyos Ramiro

    2001-01-01

    Full Text Available OBJETIVO: El estrato socioeconómico juega un rol importante en las desigualdades en salud. En México, la prevalencia más alta de casos de SIDA se encuentra en población de estratos más bajos. El propósito de lo estudio fue describir el estrato socioeconómico (ajustado por variables psicosociales, situacionales y demográficas como un factor predictor del uso consistente del condón, en adolescentes. MÉTODOS: Se incluyó en el estudio una muestra de una encuesta previa aplicada a 1.410 adolescentes de 15 a 19 años y estratificada por edad, género y estrato socioeconómico de Guadalajara, México. El análisis fue aplicado sobre los 251 adolescentes que reportaron actividad sexual. El análisis estadístico se realizó mediante Ji Cuadrada, t-test, ANOVA y regresión logística. RESULTADOS: La frecuencia de uso consistente de condón fue 30,7% y hubo una prevalencia de uso irregular. El estrato socioeconómico alto fue el principal predictor (OR= 11,1, CI95%= 2,6-47,6. Otros predictores significativos fueron el género masculino, el soporte de los pares y el nivel alto de conocimientos sobre VIH/SIDA. CONCLUSIÓN: El estrato socioeconómico es un importante factor predictor del uso consistente del condón.

  8. Female carpet weavers' visual acuity and effective factors: Fordu rural area of Qom

    Directory of Open Access Journals (Sweden)

    Khajenasiri F.

    2007-11-01

    Full Text Available Background: Healthy vision of workers is one of the important elements in carpet weaving industry which has essential role in improving of the job quality and efficiency. Visual acuity is the primary outcome measure in most studies involving eye diseases. Ihe aim of this study was determination of visual acuity and its effective factors in women carpet weaver in fordu rural area of Qom has been investigated.  Methods: In a cross-sectional (descriptive-analytical study visual acuity of 177 women carpet weaver has been determined. Job hours per day, job history, age, literacy, trauma history, diabetes history, family history of eye diseases, eye diseases history and family size  of subjects were determined .Results: The results of study indicated that the right eyes visual acuity of 72.4 % of women were desirable (0 - 0.8 and 27.6 % were undesirable (0.9-1.2. These results for the left eyes were 69.5 % and 30.5 % respectively. In addition, the result showed that with increasing the job hours and history and age, percent of women with undesirable both eyes visual acuity were increased. With higher literacy levels, percent of women with undesirable both eyes visual acuity decreased. In subjects with truma history, the undesirable visual acuity was higher. In this study the relation between visual acuity and job history, age, literacy, truma history and eye diseases history were statistically significant (in all cases P<0.05.Conclusions: High percentage of women carpet weaver were in undesirable  visual acuity and in this study the relation between visual acuity and job history, age, literacy, trauma history and eye diseases history were statistically significant (in all cases P<0.05.

  9. A method to measure the effect of food appearance factors on children's visual preferences

    DEFF Research Database (Denmark)

    Kildegaard, Heidi; Olsen, Annemarie; Gabrielsen, Gorm

    2011-01-01

    The aim of the study was to examine children’s visual preferences for two food products; yoghurts and smoothies, by using a conjoint layout. In total, 274 children performed an incomplete ranking of 8 pictures formed by three factors each with two levels (23 design). The three food appearance...... for the eight smoothies. The children visually preferred the two products without visible fruit and colour had a large influence on visual preferences too. As regards the yoghurts, the children accepted a less simple variant whereas the most preferred smoothie was very simple. Significant synergetic effects...... between food appearance factors and segmentation factors were found. Additionally gender and ethnicity were found to be influential drivers for food choice....

  10. El factor de crecimiento transformante beta como blanco terapéutico Transforming growth factor-beta as a therapeutic target

    Directory of Open Access Journals (Sweden)

    Francisco Javier Gálvez-Gastélum

    2004-08-01

    Full Text Available El factor de crecimiento transformante beta (TGF-beta es una familia de proteínas que incluye al TGF-beta, activinas y a la proteína morfogénica de hueso (BMP, por sus siglas en inglés, citocinas que son secretadas y se relacionan estructuralmente en diferentes especies de metazoarios. Los miembros de la familia del TGF-beta regulan diferentes funciones celulares como proliferación, apoptosis, diferenciación, migración, y tienen un papel clave en el desarrollo del organismo. El TGF-beta está implicado en varias patologías humanas, incluyendo desórdenes autoinmunes y vasculares, así como enfermedades fibróticas y cáncer. La activación del receptor del TGF-beta propicia su fosforilación en residuos de serina/treonina y dispara la fosforilación de proteínas efectoras intracelulares (smad, que una vez activas se translocan al núcleo para inducir la transcripción de genes blanco, y así regular procesos y funciones celulares. Se están desarrollando novedosas estrategias terapéuticas encaminadas a corregir las alteraciones presentes en patologías que involucran al TGF-beta como actor principal.Transforming growth factor-beta (TGF-beta family members include TGF-beta, activins, and bone morphogenetic proteins (BMP. These proteins are structurally related cytokines secreted in diverse Metazoans. TGF-beta family members regulate cellular functions such as proliferation, apoptosis, differentiation, and migration, and play an important role in organism development. Deregulated TGF-beta family signaling participates in various human pathologies including auto-immune diseases, vascular disorders, fibrotic disease, and cancer. Ligand-induced activation of TGF-beta family receptors with intrinsic serine/threonine kinase activity, triggers phosphorylation of the intracellular effectors of TGF-beta signaling, the Smads proteins. Once these proteins are activated they translocate into the nucleus, where they induce transcription of target

  11. Factors affecting visual outcomes after treatment of infectious endophthalmitis in northeastern Thailand

    Directory of Open Access Journals (Sweden)

    Yospaiboon Y

    2018-04-01

    Full Text Available Yosanan Yospaiboon, Anocha Intarapanich, Wipada Laovirojjanakul, Tanapat Ratanapakorn, Suthasinee Sinawat, Thuss Sanguansak, Chavakij Bhoomibunchoo KKU Eye Center, Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Objective: To determine factors affecting visual outcomes after treatment of infectious endophthalmitis during 2012–2016 at a large referral eye center in northeastern Thailand. Patients and methods: Medical charts of patients with a diagnosis of infectious endophthalmitis including demographic data, types of endophthalmitis, causative organisms, methods of treatment, anatomical, and functional outcomes were retrospectively reviewed. Factors associated with improved visual outcomes were analyzed.Results: Four hundred and eleven patients (417 eyes were recruited for the study. The three most common types were post-traumatic (44.53%, post-operative (31.87%, and endogenous endophthalmitis (17.52%. Vitreous cultures revealed causative organisms in 41.25%. Most common Gram-positive organisms were coagulase-negative Staphylococcus 30% (36/120, Bacillus spp. 20% (24/120, and Streptococcus pneumoniae 18.33% (20/120. Most common Gram-negatives were Pseudomonas spp. 24.32% (9/37, Klebsiella spp. 24.32% (9/37, and Enterobacter spp. 16.21% (6/37. Methods of treatment were medical treatment (18.71% and surgical treatment (81.29%, including pars plana vitrectomy with or without silicone oil tamponade (62.59% and destructive surgery (18.71%. After treatment, visual improvement was noted in 44.6%, stable vision in 18.47%, and worse vision in 36.93%. Factors associated with improved visual outcomes were post-operative endophthalmitis (P<0.001, coagulase-negative Staphylococcus (P=0.003, and initial visual acuity before treatment of hand motion or better (P=0.017.Conclusion: Most infectious endophthalmitis patients were post-traumatic, post-operative, and endogenous. The most common method of treatment was

  12. Prevalence and risk factors for visual impairment in preschool children the sydney paediatric eye disease study.

    Science.gov (United States)

    Pai, Amy Shih-I; Wang, Jie Jin; Samarawickrama, Chameen; Burlutsky, George; Rose, Kathryn A; Varma, Rohit; Wong, Tien Yin; Mitchell, Paul

    2011-08-01

    To assess the prevalence and associations of visual impairment (VI) in preschool children. Cross-sectional, population-based study. A total of 2461 children (73.8% participation rate), aged 6 to 72 months, were examined in the Sydney Paediatric Eye Disease Study during 2007-2009; of whom 1188, aged 30 to 72 months, with complete visual acuity (VA) data in both eyes, were included in this report. Measurement of VA was attempted on all children using the Electronic Visual Acuity (EVA) system or a logarithm of the minimum angle of resolution (logMAR) chart. Visual impairment was defined as presenting VA children aged ≥48 months and Visual impairment prevalence and its associations with child demographic factors and birth parameters. Visual impairment was found in 6.4% of the worse eye and 2.7% of the better eye in our sample. Refractive errors (69.7%) and amblyopia (26.3%) were the principal causes of VI in the worse eye. Astigmatism (51.3%) and hyperopia (28.9%) were the main refractive errors causing VI. In regression analysis controlling for other factors, VI was independently associated with low birthweight of 0.05). Visual impairment in at least 1 eye was found in 6.4% of Australian preschool children, with bilateral VI found in 2.7%. Uncorrected refractive errors and amblyopia were the principal ocular conditions associated with VI. Low birthweight was a significant risk factor independent of age, gender, and ethnicity. The author(s) have no proprietary or commercial interest in any materials discussed in this article. Copyright © 2011 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved.

  13. Designing a Visual Factors-Based Screen Display Interface: The New Role of the Graphic Technologist.

    Science.gov (United States)

    Faiola, Tony; DeBloois, Michael L.

    1988-01-01

    Discusses the role of the graphic technologist in preparing computer screen displays for interactive videodisc systems, and suggests screen design guidelines. Topics discussed include the grid system; typography; visual factors research; color; course mobility through branching and software menus; and a model of course integration. (22 references)…

  14. Risk factors for visually disabling age-related cataracts in Ibadan ...

    African Journals Online (AJOL)

    Objective: To assess the risk factors for visually disabling age related cataracts. Methods: A hospital based case-control study carried out at the university College Hospital Ibadan between May 1996 and March 1997. Three hundred and eighty three cases were matched for age and sex with five hundred and ninety nine ...

  15. A educação visual na televisão vista como educação cultural, política e estética

    Directory of Open Access Journals (Sweden)

    Milton José de Almeida

    2000-01-01

    Full Text Available Estudos sobre a educação visual e a memória produzidas pelas imagens e sons da televisão e do cinema são importantes para entender de maneira mais ampla a educação cultural, científica e política das pessoas, e não somente aquela escolar ou escolar-universitária, pois, hoje, a maior parte das populações vê o real naturalizado, reproduzido pela fotografia, pela cinematografia, pela videografia, como verdadeira representação visual do real, com a qual opinam, produzem verdades e agem tanto no mundo cotidiano como no intelectual, acadêmico. Studies about the visual education and the memory produced the images and sounds of television and of the movies are important for understanding in a wider way the cultural, scientific and political education of the people in society, and not only that of the school or university, because today most of the populations sees the naturalized Real, reproduced by photographs, movies, videos, as the true visual representation of the Real, with which they speak about, produce truths and act so much in the daily world as in the intellectual and academic world.

  16. Risk factors affecting visual-motor coordination deficit among children residing near a petrochemical industrial estate.

    Science.gov (United States)

    Aungudornpukdee, P; Vichit-Vadakan, N

    2009-12-01

    Thailand has been changed to rapid urbanization and industrialization since 1980s. During 1992 through 1996, the number of industrial factories in Rayong province increased very sharply. The major types of industries are petrol-chemical and plastic production. However, after the petrochemical industry boomed, the higher demand led to an industrial area expansion. The establishment of factories in this area leads to serious environmental and health impacts. The study aims to investigate the factors that affect visual-motor coordination deficit among children, 6-13 years of age, residing near the Petrochemical Industrial Estate, Map Ta Phut, Rayong province. A population-based cross-sectional study was employed for collecting data on neurobehavioral effects using the Digit Symbol Test. The study found one-third of 2,956 children presented with visual-motor coordination deficits. Three factors were identified that caused children to have a higher risk of visual-motor coordination deficits: gender (adjusted OR 1.934), monthly parental income (range of adjusted OR 1.977 - 2.612), and household environmental tobacco smoke (adjusted OR 1.284), while age (adjusted OR 0.874) and living period (adjusted OR 0.954) in study areas were reversed effects on visual-motor coordination deficit among children. The finding indicated that children with visual-motor coordination deficit were affected by gender, monthly parental income, age of children, length of living period, and household environmental tobacco smoke.

  17. Preeclampsia como factor de riesgo independiente para el trastorno por déficit de atención con hiperactividad. Estudio de casos y controles. Bucaramanga, Colombia

    OpenAIRE

    Yuly Andrea Castellanos-Castellanos; Mauricio Escobar-Sánchez; María Carolina Páez-Leal; Luis Alfonso Díaz-Martínez; Carlos Andrés Arias-Duran; Derlly Marcela Espitia-Orejarena; Jesica Lisette Forero-Parada

    2014-01-01

    Introducción: El trastorno por déficit de atención e hiperactividad es una condición mental que afecta a niños y adolescentes con prevalencia estimada de 5.3% en la población mundial y en Colombia es de 19-24% en hombres y 10-12% en mujeres. Su etiología es multifactorial, entre ellos se encuentra la hipoxia como factor del medio ambiente uterino; presentándose en entidades como la preeclampsia, donde se ha considerado determinante en el desarrollo del trastorno por dé...

  18. Predictive factors for postoperative visual function of primary chronic rhegmatogenous retinal detachment after scleral buckling.

    Science.gov (United States)

    Fang, Wei; Li, Jiu-Ke; Jin, Xiao-Hong; Dai, Yuan-Min; Li, Yu-Min

    2016-01-01

    To evaluate predictive factors for postoperative visual function of primary chronic rhegmatgenous retinal detachment (RRD) after sclera buckling (SB). Totally 48 patients (51 eyes) with primary chronic RRD were included in this prospective interventional clinical cases study, which underwent SB alone from June 2008 to December 2014. Age, sex, symptoms duration, detached extension, retinal hole position, size, type, fovea on/off, proliferative vitreoretinopathy (PVR), posterior vitreous detachment (PVD), baseline best corrected visual acuity (BCVA), operative duration, follow up duration, final BCVA were measured. Pearson correlation analysis, Spearman correlation analysis and multivariate linear stepwise regression were used to confirm predictive factors for better final visual acuity. Student's t-test, Wilcoxon two-sample test, Chi-square test and logistic stepwise regression were used to confirm predictive factors for better vision improvement. Baseline BCVA was 0.8313±0.6911 logMAR and final BCVA was 0.4761±0.4956 logMAR. Primary surgical success rate was 92.16% (47/51). Correlation analyses revealed shorter symptoms duration (r=0.3850, P=0.0053), less detached area (r=0.5489, Ppredictive factors were better baseline BCVA [partial R-square (PR(2))=0.5316, Ppredictive factors for better vision improvement were better baseline vision [odds ratio (OR) =50.369, P=0.0041] and longer follow up duration (OR=1.144, P=0.0067). Independent predictive factors for better visual outcome of primary chronic RRD after SB are better baseline BCVA, shorter symptoms duration, shorter operative duration and longer follow up duration, while independent predictive factors for better vision improvement after operation are better baseline vision and longer follow up duration.

  19. Modelo causal de los factores asociados al aprendizaje autorregulado como mediador del rendimiento académico en estudiantes universitarios

    OpenAIRE

    Ramírez Dorantes, María del Carmen

    2016-01-01

    El objetivo general de esta investigación fue medir, describir, relacionar y analizar las estrategias cognitivas, metacognitivas y contextuales así como la motivación hacia el aprendizaje de estudiantes universitarios mexicanos, y su relación con diversas variables educativas y socio-familiares como determinantes del rendimiento académico en la universidad, desde la teoría social-cognitiva del aprendizaje autorregulado. Mediante la aplicación y el análisis posterior de las bases de datos inst...

  20. Factors influencing visual rehabilitation after occlusion therapy in unilateral amblyopia in children.

    Science.gov (United States)

    Menon, Vimla; Chaudhuri, Zia; Saxena, Rohit; Gill, Kulwant; Sachdeva, M M

    2005-12-01

    Amblyopia is one of the most common causes of visual impairment in adults and children, and visual loss may be permanent if not treated in time. Though many studies have been done on occlusion therapy which is the mainstay in the treatment of unilateral amblyopia, discrepancies exist in literature about quantification of treatment and follow up measures. The present study was undertaken to evaluate the factors responsible for the successful outcome of treatment and the optimum time required for the same in children with unilateral amblyopia. Baseline characteristics of 63 verbal patients with unilateral amblyopia (strabismic, anisometropic, mixed) referred to the Strabismus and Amblyopia Clinic at the Dr Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi between September 2001 to December 2002 who improved to the desired level of visual acuity after treatment for amblyopia in the mentioned time period, were analyzed to assess for factors that directly or indirectly influenced the optimum visual rehabilitation and the average duration of therapy required for the same. The evaluation included assessment of the baseline best-corrected visual acuity (BCVA) and refractive status in both eyes, the age at presentation, the type of amblyopia present, fixation pattern in the amblyopic eye, inter-eye visual acuity difference, and evaluation of compliance through a parental diary system. Baseline BCVA in the amblyopic eye was similar in all the three groups. Patients with anisometropic amblyopia showed a quicker response to therapy. Compliance to treatment was the major factor affecting the overall time required for a successful outcome in most cases. The overall time required for the treatment to be successful (including the period of maintenance) was about 1,089 h. This hospital-based study showed that the average duration of occlusion therapy to achieve stable isoacuity was 7.2 months with an average occlusion of 6-7 h/day. Compliance to therapy was the most

  1. FACTORES ASOCIADOS CON EL DESEMPEÑO DEL PERSONAL QUE LABORA COMO OFICIALES DE TRÁNSITO Y SEGURIDAD EN LA UNIVERSIDAD DE COSTA RICA

    Directory of Open Access Journals (Sweden)

    Ernestina Aguirre Vidaurre

    2012-04-01

    Full Text Available El objetivo de este artículo es presentar los resultados de la investigación Factores que afectan el desempeño laboral de los y las oficiales de Tránsito y Seguridad, llevada a cabo en la Sede Ciudad Universitaria Rodrigo Facio de la Universidad de Costa Rica, durante el primer semestre del año 2009. La población estuvo conformada por 57 oficiales de tránsito y seguridad. Se aplicó un diseño cuantitativo de tipo descriptivo. Los instrumentos utilizados fueron la guía de observación y el cuestionario, los cuales fueron validados previamente. Los aspectos por analizar fueron las incapacidades, factores de riesgo que generan incapacitaciones, así como aquellos eventos que dañen el bienestar del trabajador; también, se emplearon resultados que proporcionó el Diagnóstico de Atención Primaria Ambiental (APA. Este estudio evidenció una alta incidencia de enfermedades crónicas que empeoran al exponerse a factores propios del trabajo, así como por la práctica de inadecuados estilos de vida como el tabaquismo, una mala alimentación y el sedentarismo. Del mismo modo, se presentan factores protectores como alto grado de satisfacción laboral, adecuadas relaciones interpersonales, conocimiento de los derechos y deberes laborales. Existen factores de riesgo como el grupo etáreo, jornadas laborales excesivas, horarios rotativos, así como alta movilidad por el campus. Como principal hallazgo se encontró que las causas más frecuentes de incapacidad laboral son las caídas y la gripe. Se concluye que los beneficios de un ambiente de trabajo saludable no se reducen al fortalecimiento de la salud del trabajador (a, sino a brindar un aporte positivo a la productividad e incrementar la motivación laboral, el espíritu de trabajo, la satisfacción en el trabajo y la calidad de vida general, aspectos que forman parte del objetivo de la práctica de la enfermera (o en estos espacios.

  2. Productos primarios y mano de obra no calificada, pierden participación como factores de producción

    OpenAIRE

    Salgado, Wilma

    1996-01-01

    El deterioro del mercado laboral ha sido mucho más grave de lo que indican las cifras de desempleo en el mundo industrializado en los años ochenta y noventa, aclarando que entre los nuevos empleos se incluyen empleos de baja productividad y baja remuneración, considerados propiamente como parte del "desempleo disfrazado".

  3. Visual acuity and associated factors. The Central India Eye and Medical Study.

    Directory of Open Access Journals (Sweden)

    Vinay Nangia

    Full Text Available Visual acuity is a major parameter for quality of vision and quality of life. Information on visual acuity and its associated factors in rural societies almost untouched by any industrialization is mostly non-available. It was, therefore, the purpose of our study to determine the distribution of visual acuity and its associated factors in a rural population not marked influenced by modern lifestyle. The population-based Central India Eye and Medical Study included 4711 subjects (aged 30+ years, who underwent a detailed ophthalmologic examination including visual acuity measurement. Visual acuity measurements were available for 4706 subjects with a mean age of 49.5±13.4 years (range: 30-100 years. BCVA decreased significantly (P<0.001 from the moderately hyperopic group (0.08±0.15 logMAR to the emmetropic group (0.16±0.52 logMAR, the moderately myopic group (0.28±0.33 logMAR, the highly hyperopic group (0.66±0.62 logMAR and finally the highly myopic group (1.32±0.92 logMAR. In multivariate analysis, BCVA was significantly associated with the systemic parameters of lower age (P<0.001, higher level of education (P<0.001, higher body stature (P<0.001 and higher body mass index (P<0.001, and with the ophthalmic parameters of more hyperopic refractive error (spherical equivalent (P<0.001, shorter axial length (P<0.001, lower degree of nuclear cataract (P<0.001, and lower intraocular pressure (P = 0.006. The results suggest that in the rural population of Central India, major determinants of visual acuity were socioeconomic background, body stature and body mass index, age, refractive error, cataract and intraocular pressure.

  4. Predictive Factors in OCT Analysis for Visual Outcome in Exudative AMD

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    Maria-Andreea Gamulescu

    2012-01-01

    Full Text Available Background. Reliable predictive factors for therapy outcome may enable treating physicians to counsel their patients more efficiently concerning probability of improvement or time point of discontinuation of a certain therapy. Methods. This is a retrospective analysis of 87 patients with exudative age-related macular degeneration who received three monthly intravitreal ranibizumab injections. Visual acuity before initiation of intravitreal therapy and 4–6 weeks after last intravitreal injection was compared and related to the preoperative visualisation of continuity of the outer retinal layers as assessed by OCT: external limiting membrane (ELM, inner photoreceptor segments (IPS, junction between inner and outer segments (IS/OS, and outer photoreceptor segments (OPS. Results. Visual acuity increased in 40 of 87 (46.0% patients, it remained stable in 25 (28.7%, and 22 (25.3% patients had decreased visual acuity four to six weeks after triple intravitreal ranibizumab injections. No statistically significant predictive value could be demonstrated for grade of continuity of outer retinal layers concerning visual acuity development. Conclusions. In our series of AMD patients, grade of continuity of outer retinal layers was not a significant predictive value for visual acuity development after triple ranibizumab injections.

  5. ÍNDICE ATEROGÉNICO COMO FACTOR DE RIESGO PARA EL SÍNDROME DE PREECLAMPSIA / Atherogenic index as a risk factor for preeclampsia syndrome

    Directory of Open Access Journals (Sweden)

    José P. Rueda Villalpando

    2012-10-01

    Full Text Available ResumenIntroducción y objetivos: La hipertensión inducida por el embarazo o preeclampsia presenta características fisiopatológicas similares a las de la aterosclerosis y las enfermedades cardiovasculares. El propósito del estudio fue identificar los factores de riesgo aterogénico y su relación en la preeclampsia. Método: Se realizó una investigación descriptiva de tipo transversal, con 50 pacientes en el tercer trimestre del embarazo. Mediante la entrevista se establecieron el peso y la talla, para calcular el índice de masa corporal. La tensión arterial > 140/90 mmHg acompañada de edema y proteinuria en el embarazo, se clasificó como hipertensión arterial. Se tomaron muestras de sangre para determinar los valores de colesterol sérico, triglicéridos y HDL. Las variables se expresaron en porcentajes. Resultados: En cada paciente se analizó el número de factores de riesgo y sus asociaciones. Los resultados más relevantes consistieron en que el 76 % presentó sobrepeso u obesidad. En cuanto al síndrome de preeclampsia, se mostró en el 30 % con un riesgo relativo de 3 veces más que las normolipídicas, y 30 % tuvo un índice aterogénico elevado. Conclusiones: La dislipidemia es un factor de riesgo aterogénico de importancia, y en conjunto constituyen un factor de riesgo para la preeclampsia. El incremento del índice aterogénico aumenta la susceptibilidad a la aterogénesis en la preeclampsia. La dislipidemia aparenta ser el punto de inicio de esta cadena de sucesos. El estudio del papel de la dislipidemia podría contribuir a la comprensión de los mecanismos de disfunción endotelial en la preeclampsia. / AbstractIntroduction and Objectives: Pregnancy−induced hypertension or preeclampsia presents pathophysiological features similar to atherosclerosis and cardiovascular disease. Identify atherogenic risk factors and their relationship in preeclampsia was the purpose of this study. Method: We conducted a cross

  6. Risk factors and visual fatigue of baggage X-ray security screeners: a structural equation modelling analysis.

    Science.gov (United States)

    Yu, Rui-Feng; Yang, Lin-Dong; Wu, Xin

    2017-05-01

    This study identified the risk factors influencing visual fatigue in baggage X-ray security screeners and estimated the strength of correlations between those factors and visual fatigue using structural equation modelling approach. Two hundred and five X-ray security screeners participated in a questionnaire survey. The result showed that satisfaction with the VDT's physical features and the work environment conditions were negatively correlated with the intensity of visual fatigue, whereas job stress and job burnout had direct positive influences. The path coefficient between the image quality of VDT and visual fatigue was not significant. The total effects of job burnout, job stress, the VDT's physical features and the work environment conditions on visual fatigue were 0.471, 0.469, -0.268 and -0.251 respectively. These findings indicated that both extrinsic factors relating to VDT and workplace environment and psychological factors including job burnout and job stress should be considered in the workplace design and work organisation of security screening tasks to reduce screeners' visual fatigue. Practitioner Summary: This study identified the risk factors influencing visual fatigue in baggage X-ray security screeners and estimated the strength of correlations between those factors and visual fatigue. The findings were of great importance to the workplace design and the work organisation of security screening tasks to reduce screeners' visual fatigue.

  7. Turbidity in oil-in-water-emulsions - Key factors and visual perception.

    Science.gov (United States)

    Linke, C; Drusch, S

    2016-11-01

    The aim of the present study is to systematically describe the factors affecting turbidity in beverage emulsions and to get a better understanding of visual perception of turbidity. The sensory evaluation of the human visual perception of turbidity showed that humans are most sensitive to turbidity differences between two samples in the range between 1000 and 1500 NTU (ratio) (nephelometric turbidity units). At very high turbidity values >2000 TU in NTU (ratio) were needed to distinguish between samples that they were perceived significantly different. Particle size was the most important factor affecting turbidity. It was shown that a maximum turbidity occurs at a mean volume - surface diameter of 0.2μm for the oil droplet size. Additional parameters were the refractive index, the composition of the aqueous phase and the presence of excess emulsifier. In a concentration typical for a beverage emulsion a change in the refractive index of the oil phase may allow the alteration of turbidity by up to 30%. With the knowledge on visual perception of turbidity and the determining factors, turbidity can be tailored in product development according to the customer requirements and in quality control to define acceptable variations in optical appearance. Copyright © 2016. Published by Elsevier Ltd.

  8. "Keywords" : el retorno al texto como práctica artística en la era de la hipertrofia visual : la escritura como producción de subjetividad, campo expandido y espacio de intersección : (2006-2015)

    OpenAIRE

    Marco Covelo, María José

    2016-01-01

    "Sabemos hoy que un texto no está compuesto por una línea de palabras, que producen un sentido único, de alguna manera teológico, sino un espacio de dimensiones múltiples, donde se combinan y contrastan escrituras variadas, no siendo ninguna original: el texto es un tejido de citas, entresacadas de miles de focos de la cultura". Roland Barthes. Como ya profetizó Marshall McLuhan, nos encontramos en un momento histórico de sobreproducción e hipertrofia visual. Las imágenes han conquistado n...

  9. Lo visual como construcción. Desarrollo de un modelo pictórico de representación de la imagen

    OpenAIRE

    De la Villa Liso, Lourdes

    2012-01-01

    903 páginas, bibliografía en páginas 854-895, glosario en páginas 896-903 [En] Along with the development of neuroscience in the last century until today, has arisen the comparison between our brain function and the work of art. More specifically, the neuroscience of vision compares it with painting. From the point of view of our visual sense, what defines our brain function is the visual mechanism. This thesis tries to approach such a mechanism, from the functioning of the artwork. Suc...

  10. Factors predicting visual improvement post pars plana vitrectomy for proliferative diabetic retinopathy

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    Evelyn Tai Li Min

    2017-08-01

    Full Text Available AIM: To identify factors predicting visual improvement post vitrectomy for sequelae of proliferative diabetic retinopathy(PDR.METHODS: This was a retrospective analysis of pars plana vitrectomy indicated for sequelae of PDR from Jan. to Dec. 2014 in Hospital Sultanah Bahiyah, Alor Star, Kedah, Malaysia. Data collected included patient demographics, baseline visual acuity(VAand post-operative logMAR best corrected VA at 1y. Data analysis was performed with IBM SPSS Statistics Version 22.0. RESULTS: A total of 103 patients were included. The mean age was 51.2y. On multivariable analysis, each pre-operative positive deviation of 1 logMAR from a baseline VA of 0 logMAR was associated with a post-operative improvement of 0.859 logMAR(P0.001. Likewise, an attached macula pre-operatively was associated with a 0.374(P=0.003logMAR improvement post vitrectomy. Absence of iris neovascularisation and absence of post-operative complications were associated with a post vitrectomy improvement in logMAR by 1.126(P=0.001and 0.377(P=0.005respectively. Absence of long-acting intraocular tamponade was associated with a 0.302(P=0.010improvement of logMAR post vitrectomy.CONCLUSION: Factors associated with visual improvement after vitrectomy are poor pre-operative VA, an attached macula, absence of iris neovascularisation, absence of post-operative complications and abstaining from use of long-acting intraocular tamponade. A thorough understanding of the factors predicting visual improvement will facilitate decision-making in vitreoretinal surgery.

  11. Interfaces naturales como factor de progreso cognitivo y social en personas que padecen Trastorno del Espectro Autista

    OpenAIRE

    Pons, Claudia; Contreras, Víctor; Zavala, Gonzalo; Fernández, Daniel; Holc, Matías; Passarelli, Cinthya

    2015-01-01

    El trastorno de espectro autista (TEA) es una alteración del desarrollo que se especifica por deficiencias cualitativas en la comunicación y en la interacción social, comportamiento caracterizado por patrones repetitivos y estereotipados. Los niños con trastorno del espectro autista (TEA), como también otros niños que no padecen este trastorno, presentan una característica bien definida por la aceptación a las Tecnologías de la Información y la Comunicación (TIC). Objetivo. Este proyecto t...

  12. El marketing interno como factor impulsador de la calidad del servicio en las entidades públicas

    OpenAIRE

    Silvana, Cuadrado

    2008-01-01

    El presente trabajo monográfico, realiza una investigación sobre uno de los fenómenos que han sido apuntados por el Marketing de Servicios: esto es, el Marketing Interno. El Marketing Interno incluye una diversidad de actividades internas que, como tales, no son nuevas, pero que ofrecen en la actualidad, un renovado enfoque para que los empleados desarrollen una orientación a los servicios y un mayor interés por el cliente y el marketing. El Marketing Interno se basa en la noción de que...

  13. A network and visual quality aware N-screen content recommender system using joint matrix factorization.

    Science.gov (United States)

    Ullah, Farman; Sarwar, Ghulam; Lee, Sungchang

    2014-01-01

    We propose a network and visual quality aware N-Screen content recommender system. N-Screen provides more ways than ever before to access multimedia content through multiple devices and heterogeneous access networks. The heterogeneity of devices and access networks present new questions of QoS (quality of service) in the realm of user experience with content. We propose, a recommender system that ensures a better visual quality on user's N-screen devices and the efficient utilization of available access network bandwidth with user preferences. The proposed system estimates the available bandwidth and visual quality on users N-Screen devices and integrates it with users preferences and contents genre information to personalize his N-Screen content. The objective is to recommend content that the user's N-Screen device and access network are capable of displaying and streaming with the user preferences that have not been supported in existing systems. Furthermore, we suggest a joint matrix factorization approach to jointly factorize the users rating matrix with the users N-Screen device similarity and program genres similarity. Finally, the experimental results show that we also enhance the prediction and recommendation accuracy, sparsity, and cold start issues.

  14. A Network and Visual Quality Aware N-Screen Content Recommender System Using Joint Matrix Factorization

    Directory of Open Access Journals (Sweden)

    Farman Ullah

    2014-01-01

    Full Text Available We propose a network and visual quality aware N-Screen content recommender system. N-Screen provides more ways than ever before to access multimedia content through multiple devices and heterogeneous access networks. The heterogeneity of devices and access networks present new questions of QoS (quality of service in the realm of user experience with content. We propose, a recommender system that ensures a better visual quality on user’s N-screen devices and the efficient utilization of available access network bandwidth with user preferences. The proposed system estimates the available bandwidth and visual quality on users N-Screen devices and integrates it with users preferences and contents genre information to personalize his N-Screen content. The objective is to recommend content that the user’s N-Screen device and access network are capable of displaying and streaming with the user preferences that have not been supported in existing systems. Furthermore, we suggest a joint matrix factorization approach to jointly factorize the users rating matrix with the users N-Screen device similarity and program genres similarity. Finally, the experimental results show that we also enhance the prediction and recommendation accuracy, sparsity, and cold start issues.

  15. Predictive factors of visual outcome of Malaysian cataract patients: a retrospective study

    Directory of Open Access Journals (Sweden)

    Thanigasalam Thevi

    2017-09-01

    Full Text Available AIM: To explore the associations between various characteristics of Malaysian cataract patients and their management, and their post-operative visual outcomes, to inform relevant bodies to reduce cataract-related blindness. METHODS: We conducted a descriptive secondary data analysis of cataract surgery patients in Melaka Hospital, from 2007 to 2014 using the National Eye Database (NED. Patient-related factors (demographic features, systemic and ocular comorbidities and management-related factors (surgical duration, type of surgery, type of lens were analysed for their association with visual outcome (acuity. RESULTS: Most patients were Malays (48.23% and Chinese (38.55% aged 60-79y (range 0-100y. Hypertension (58.61% and diabetes (44.89% were major systemic comorbidities. Glaucoma (6.71% and diabetic retinopathy (10.12% were the main ocular comorbidities. Other comorbidities were age-related macular degeneration, pterygium, corneal opacities, macula diseases, vitreous haemorrhage, retinal detachment and pseudoexfoliation (0.70%-1.60%. Preoperatively 7150 (55.03% eyes presented with poor vision. Uncomplicated phacoemulsification performed quickly with foldable lenses gave good results. CONCLUSION: Primary care physicians should initiate early detection to prevent late presentation of cataracts causing poor vision and should discuss the risks and benefits of cataract surgery while emphasizing the role of pre-existing comorbidities which may affect the visual outcomes. For good results, phacoemulsification should be done within 30min, without complications, using foldable posterior chamber intraocular lens.

  16. [Influencing factors of visual hallucinations in patients with Parkinson's disease and its relationship with sleep disorders].

    Science.gov (United States)

    Wu, D D; Li, S H; Jin, L Y; Jin, Y; Cui, Y Y; Zhao, H; Liu, H J; Ma, X X; Su, W; Chen, H B

    2016-04-05

    To investigate the prevalence and influencing factors of visual hallucinations in patients with Parkinson's disease(PD), and to analyze the relationship between visual hallucinations and sleep disorders. We recruited 187 patients with PD(H-Y Ⅰ-Ⅲ) from outpatient department in Beijing Hospital. The patients were investigated for general information and the use of medicine. The patients were divided into visual hallucination(VH) group and non-hallucination(non-VH) group. A comparison study was conducted between two groups. We investigated the sleep disorders of PD patients according to Non Motor Symptom Quest(NMSquest) and Parkinson's disease sleep scale(PDSS). Logistic stepwise multiple regression procedures were used to determine the best predictive model of visual hallucinations in patients with PD. (1) 42 cases(22.5%) of PD patients were accompanied by visual hallucinations; (2) the VH group and non-VH group had no difference in age, sex, duration of illness, the scores of Minimum Mental State Examination(MMSE) and levodopa equivalent doses (LED). The scores of Unified Parkinson's Disease Rating Scale(UPDRS) Ⅰ, the Hamilton Rating Scale for Anxiety(HAMA) and the Hamilton Rating Scale for Depression(HAMD) in VH group were significantly higher than those in non-VH group[3.5(2, 5) vs 2 (1, 3); 10(6.75, 15) vs 8(5, 11); 11(7.75, 17) vs 9(5, 13); Psleep behavior disorder(RBD) in VH group were significantly higher than those in non-VH group(61.9% vs 40.7%, 71.4% vs 47.6%, P0.05). The score of PDSS in VH group was significantly lower than that in non-VH group[111(92.75, 128.25) vs 123(109, 135), Psleep disorder are independently associated with VH in PD.

  17. The impact of visual layout factors on performance in Web pages: a cross-language study.

    Science.gov (United States)

    Parush, Avi; Shwarts, Yonit; Shtub, Avy; Chandra, M Jeya

    2005-01-01

    Visual layout has a strong impact on performance and is a critical factor in the design of graphical user interfaces (GUIs) and Web pages. Many design guidelines employed in Web page design were inherited from human performance literature and GUI design studies and practices. However, few studies have investigated the more specific patterns of performance with Web pages that may reflect some differences between Web page and GUI design. We investigated interactions among four visual layout factors in Web page design (quantity of links, alignment, grouping indications, and density) in two experiments: one with pages in Hebrew, entailing right-to-left reading, and the other with English pages, entailing left-to-right reading. Some performance patterns (measured by search times and eye movements) were similar between languages. Performance was particularly poor in pages with many links and variable densities, but it improved with the presence of uniform density. Alignment was not shown to be a performance-enhancing factor. The findings are discussed in terms of the similarities and differences in the impact of layout factors between GUIs and Web pages. Actual or potential applications of this research include specific guidelines for Web page design.

  18. The second visual area in the marmoset monkey: visuotopic organisation, magnification factors, architectonical boundaries, and modularity.

    Science.gov (United States)

    Rosa, M G; Fritsches, K A; Elston, G N

    1997-11-03

    The organisation of the second visual area (V2) in marmoset monkeys was studied by means of extracellular recordings of responses to visual stimulation and examination of myelin- and cytochrome oxidase-stained sections. Area V2 forms a continuous cortical belt of variable width (1-2 mm adjacent to the foveal representation of V1, and 3-3.5 mm near the midline and on the tentorial surface) bordering V1 on the lateral, dorsal, medial, and tentorial surfaces of the occipital lobe. The total surface area of V2 is approximately 100 mm2, or about 50% of the surface area of V1 in the same individuals. In each hemisphere, the receptive fields of V2 neurones cover the entire contralateral visual hemifield, forming an ordered visuotopic representation. As in other simians, the dorsal and ventral halves of V2 represent the lower and upper contralateral quadrants, respectively, with little invasion of the ipsilateral hemifield. The representation of the vertical meridian forms the caudal border of V2, with V1, whereas a field discontinuity approximately coincident with the horizontal meridian forms the rostral border of V2, with other visually responsive areas. The bridge of cortex connecting dorsal and ventral V2 contains neurones with receptive fields centred within 1 degree of the centre of the fovea. The visuotopy, size, shape and location of V2 show little variation among individuals. Analysis of cortical magnification factor (CMF) revealed that the V2 map of the visual field is highly anisotropic: for any given eccentricity, the CMF is approximately twice as large in the dimension parallel to the V1/V2 border as it is perpendicular to this border. Moreover, comparison of V2 and V1 in the same individuals demonstrated that the representation of the central visual field is emphasised in V2, relative to V1. Approximately half of the surface area of V2 is dedicated to the representation of the central 5 degrees of the visual field. Calculations based on the CMF, receptive

  19. Attention in natural scenes: Affective-motivational factors guide gaze independently of visual salience.

    Science.gov (United States)

    Schomaker, Judith; Walper, Daniel; Wittmann, Bianca C; Einhäuser, Wolfgang

    2017-04-01

    In addition to low-level stimulus characteristics and current goals, our previous experience with stimuli can also guide attentional deployment. It remains unclear, however, if such effects act independently or whether they interact in guiding attention. In the current study, we presented natural scenes including every-day objects that differed in affective-motivational impact. In the first free-viewing experiment, we presented visually-matched triads of scenes in which one critical object was replaced that varied mainly in terms of motivational value, but also in terms of valence and arousal, as confirmed by ratings by a large set of observers. Treating motivation as a categorical factor, we found that it affected gaze. A linear-effect model showed that arousal, valence, and motivation predicted fixations above and beyond visual characteristics, like object size, eccentricity, or visual salience. In a second experiment, we experimentally investigated whether the effects of emotion and motivation could be modulated by visual salience. In a medium-salience condition, we presented the same unmodified scenes as in the first experiment. In a high-salience condition, we retained the saturation of the critical object in the scene, and decreased the saturation of the background, and in a low-salience condition, we desaturated the critical object while retaining the original saturation of the background. We found that highly salient objects guided gaze, but still found additional additive effects of arousal, valence and motivation, confirming that higher-level factors can also guide attention, as measured by fixations towards objects in natural scenes. Copyright © 2017 Elsevier Ltd. All rights reserved.

  20. Consumo precoz de tabaco y alcohol como factores modificadores del riesgo de uso de marihuana Early tobacco and alcohol consumption as modifying risk factors on marijuana use

    Directory of Open Access Journals (Sweden)

    Verónica Iglesias

    2007-08-01

    Full Text Available OBJETIVO: Evaluar la relación entre consumo precoz de tabaco y alcohol y el riesgo de consumir marihuana en escolares. MÉTODOS: Estudio transversal con datos del IV Estudio Nacional de Consumo de Drogas en Población Escolar, año 2001. Se analizó 54,001 escolares de ocho a 20 años de edad. Como variables predictoras se consideró el autoreporte de consumo de tabaco y alcohol, la edad de inicio de consumo de tabaco y/o alcohol, y la intensidad de uso del tabaco. Como variable resultado se utilizó el autoreporte de uso de marihuana y la edad de inicio de consumo de ésta. Para el análisis de los datos se utilizó regresión de Poisson y regresión de Weibull. RESULTADOS: Los escolares presentaron alta prevalencia de consumo de tabaco, alcohol y marihuana (77%, 79% y 23% respectivamente. El consumo de tabaco en presencia de consumo de alcohol fue un factor de riesgo de uso de marihuana (RP=10.4; IC 95%: 8.9;12.2. El inicio tardío de consumo de tabaco (HR=0.85; IC 95%: 0.84;0.86 y alcohol (HR=0.90; IC 95%: 0.89;0.91 resultó ser un factor protector del uso de marihuana. La probabilidad de consumo de marihuana fue mayor en quienes fumaban todos o casi todos los días en relación a quienes fumaban sólo los fines de semana (RP=3.11; IC 95%: 2.96;3.26 vs. RP=1.70; IC 95%: 1.58;1.83. CONCLUSIONES: El riesgo de consumo de marihuana se asoció significativamente con la edad de inicio de consumo de tabaco, la frecuencia de consumo de tabaco y el consumo simultáneo de alcohol. Las estrategias de prevención deberían orientarse a evitar el consumo precoz de tabaco en escolares.OBJETIVO: Avaliar a relação entre consumo precoce de tabaco e álcool e o risco de consumir maconha por escolares. MÉTODOS: Estudo transversal com dados do IV Estudio Nacional de Consumo de Drogas en Población Escolar, ano 2001 no Chile. Analisaram-se 54.001 escolares de oito a 20 anos de idade. As variáveis preditoras consideradas foram: consumo de tabaco e álcool, a

  1. Emotions and personality traits as high-level factors in visual attention: a review

    Directory of Open Access Journals (Sweden)

    Kai eKaspar

    2012-11-01

    Full Text Available The visual sense has outstanding significance for human perception and behavior, and visual attention plays a central role in the processing of the sensory input. Thereby, multiple low- and high-level factors contribute to the guidance of attention. The present review focuses on two neglected high-level factors: emotion and personality. The review starts with an overview of different models of attention, providing a conceptual framework and illustrating the nature of low- and high-level factors in visual attention. Then, the ambiguous concept of emotion is described, and recommendations are made for the experimental practice. In the following, we present several studies showing the influence of emotion on overt attention, whereby the distinction between internally and externally located emotional impacts is emphasized. We also provide evidence showing that emotional stimuli influence perceptual processing outside of the focus of attention, whereby results in this field are mixed. Then, we present some detached studies showing the reversed causal effect: attention can also affect emotional responses. The final section on emotion–attention interactions addresses the interplay on the neuronal level, which has been neglected for a long time in neuroscience. In this context, several conceptual recommendations for future research are made. Finally, based on findings showing inter-individual differences in human sensitivity to emotional items, we introduce the wide range of time-independent personality traits that also influence attention, and in this context we try to raise awareness of the consideration of inter-individual differences in the field of neuroscience.

  2. [Factors influencing the satisfaction of demands on services for elderly with visual disability].

    Science.gov (United States)

    Zhang, Lei; Li, Wenfei; Zhu, Jieping; Huang, Tingting; Zhu, Lin; Chen, Gong; Zheng, Xiaoying

    2014-09-01

    To investigate the status and associated factors of demand satisfaction (DS) of services for older adults with visual disability (OAVD). Based on the 2nd National Sample Survey on Disability in 2006, a total number of 24 017 OAVD cases were included. Associated relationships among demographic, health-related, social, economic factors and services of DS, including health demand (Type I), basic livelihood demand (Type II), and environmental support demand (Type III) were analyzed. The proportions of DS of Type I, II, III services for OAVD were 35.1% , 9.3% and 4.3% respectively. Eight factors as:having pension insurance (OR = 1.64), living in urban areas (OR = 1.54), per capita household income at ≥5 000 or over Yuan (OR = 1.46)were favorable ones on OAVD DS while at age ≥80 or above (OR = 0.90), being male (OR = 0.93)were adverse factors of Type I. Four factors as:being male (OR = 1.43), living in urban areas (OR = 1.15), subjects defined as grade II (OR = 1.36) and grade I (OR = 1.70) etc., were favorable factors on OAVD DS. Five factors as: range of age groups at 15-59 (OR = 0.57) or at ≥60 (OR = 0.45), per capita household income at 1 000-1 999 Yuan (OR = 0.77), 2 000-4 999 Yuan (OR = 0.58) and ≥5 000 Yuan (OR = 0.39) were adverse factors of Type II. Factors as: living in urban areas (OR = 1.23), defined as grade II (OR = 1.38) and grade I (OR = 1.34), having pension insurance (OR = 1.62) and per capita household income at ≥5 000 Yuan (OR = 1.42) etc., were favorable factors of Type III. The DS degree of older adults with visual disability was generally very low while factors as: per capita household income, situation on social insurance, age, degree of disability, age when disability was identified, areas of residence, gender, grade of disability, marriage status, levels of education etc., were significantly associated with the service on DS.

  3. Estudo comparativo do acesso semântico no processamento visual de palavras entre brasileiros monolíngues e chineses multilíngues falantes do português do Brasil como língua estrangeira Comparative study of the semantic access in the visual processing of words between monolinguistic Brazilians and multilinguistic Chinese who speak portuguese as a foreign language

    Directory of Open Access Journals (Sweden)

    Jerusa Fumagalli de Salles

    2010-12-01

    Full Text Available O priming semântico é uma forma de avaliar o processamento semântico de palavras. Se a semântica é um importante fator contribuinte no reconhecimento visual de palavras, surge a questão de se chineses multilíngues (mandarin como L1 e inglês como L2, que estão aprendendo o português como L3, podem se beneficiar do contexto semântico em tarefa de decisão lexical na Língua Portuguesa, comparado aos controles (brasileiros universitários e crianças. Além de comparar a magnitude do efeito de priming semântico entre a amostra de chineses e de brasileiros, objetivou-se investigar nos chineses a relação entre o desempenho no experimento de priming semântico e na tarefa de consciência fonológica, ambos na língua portuguesa. Participaram do estudo 40 universitários chineses multilíngues, 31 universitários brasileiros e 26 crianças de 3ª série. Houve efeito de priming semântico nos chineses e nos brasileiros, universitários e crianças, ou seja, respostas mais rápidas na condição com prime relacionado do que na condição com prime não relacionado. Não houve diferenças significativas na magnitude do efeito entre os grupos de adultos, mas as crianças apresentaram maior magnitude de efeito do que os chineses. Considerando apenas o grupo de chineses, não houve correlação entre os escores na tarefa de decisão lexical no paradigma de priming semântico e a avaliação da consciência fonológica. Chineses parecem ter acessado o significado dos primes apresentados visualmente na Língua Portuguesa, não se diferenciando dos brasileiros adultos e crianças.The semantic priming paradigm can be used to evaluate word semantic processing. Considering that semantic is an important factor in visual word recognition, an experiment was conducted to verify if multilingual Chinese (L1 and L2 being respectively Mandarin and English that are learning Portuguese as L3 would benefit from the semantic context during a lexical decision

  4. Determinant Factors of Poor Visual Outcome After Ocular Trauma: A Retrospective Study in Central Sarawak, Malaysia.

    Science.gov (United States)

    Yong, Geng-Yi; Pan, Shin-Wei; Humayun Akhter, Faisal; Law, Thomas Ngo-Hieng; Toh, Teck-Hock

    2016-01-01

    To study the demographic characteristics of ocular trauma in Central Sarawak and identify the determinant factors of poor visual outcome. A retrospective study of ocular trauma cases presenting at the referral hospital in 2013. Patients were identified and recruited from hospital records. Those presenting for follow-up review were excluded. Case records were retrieved and reviewed after recruitment. We studied 168 patients with 179 ocular injuries, of which 44% were work related. Compared with non-work-related cases, work-related cases were more likely to be male [odds ratio (OR), 19.7; 95% confidence interval (CI), 2.6-150.9] and foreign (OR, 18.0; 95% CI, 2.3-142.0). Open globe injuries constituted a higher percentage of impaired visual acuity (VA) during the first visit: 84.6% compared with 18.1% for closed globe injuries (OR, 25.0; 95% CI, 5.3-118.4; P Sarawak were predominantly work related, occurring at industrial premises, and involving males and foreigners. Both open globe injuries and a delay in seeking treatment resulted in significantly poorer visual outcomes.

  5. La imagen como documento gráfico visual en la enseñanza de la historia en Educación Primaria en perspectiva comparada. Análisis y propuesta didáctica

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    Virginia Gámez-Ceruelo

    2017-01-01

    Full Text Available El desarrollo tecnológico del siglo XXI ha ampliado los estímulos visuales e instala la necesidad de promover una alfabetización visual progresiva. Uno de los soportes más usados en aula y con mayor presencia de imágenes son los libros de texto. Así, este artículo pretende: 1 valorar los aprendizajes promovidos en las actividades de los libros de texto que emplean imágenes en Chile y España y 2 sugerir directrices didácticas para su uso como documento gráfico visual en la enseñanza de las ciencias sociales. Se emplearon dos perspectivas metodológicas, la cualitativa y la comparada. Los resultados indican que existe un creciente desarrollo de facultades de aproximación analítica y crítica a las imágenes en Chile, mientras en Cataluña su desarrollo es muy incipiente.

  6. Factores de virulencia de Staphylococcus aureus asociados con infecciones mamarias en bovinos: relevancia y rol como agentes inmunógenos

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    Cecilia M Camussone

    Full Text Available Staphylococcus aureus es el microorganismo causante de mastitis bovina más prevalente en Argentina y en el mundo. La falta de efectividad frente a este organismo de los métodos tradicionales de control, basados en la higiene y la terapia antibiótica, ha conducido a la búsqueda de alternativas para prevenir la enfermedad. Una de ellas es la manipulación de los mecanismos defensivos del huésped mediante vacunación. La identificación de los factores de virulencia que estimulan las defensas del huésped es fundamental para el desarrollo racional de inmunógenos.S. aureus posee múltiples factores de virulencia que interactúan con el huésped en distintas etapas de la infección mamaria; algunos de ellos han mostrado capacidad de generar una respuesta inmune benéfica para el huésped. El objetivo de este artículo es revisar conceptos de estructura, función y utilización como inmunógenos de los factores de virulencia de S. aureus considerados como más relevantes en las principales etapas de la infección intramamaria.

  7. LA GESTIÓN DE INVENTARIO COMO FACTOR ESTRATÉGICO EN LA ADMINISTRACIÓN DE EMPRESAS

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    Irma Yolanda Garrido Bayas

    2017-09-01

    Full Text Available Las Pymes en la actualidad representan un porcentaje económico y financiero de la economía de los países, en el Ecuador este sector simboliza un 40% de la economía. El objetivo fue analizar la efectividad de la gestión de inventarios a través de la aplicación de modelos matemáticos /estadísticos con el fin de destacar los costos inherentes al producto que se comercializa en las Pymes del Cantón Riobamba Ecuador. Como metodología se desarrolló las bases documentales y la aplicación de modelos matemáticos sustentados en herramientas estadísticas que permitieron planear y proyectar la administración de los productos.  La muestra fue de tres empresas ubicadas en el cantón de Riobamba, se logró realizar el diagnostico correspondiente de los costos y la cantidad requerida en los inventarios de los productos. Por tanto, una administración eficaz de los inventarios garantiza las ganancias de las pymes, aumenta los ingresos y el total de los activos.

  8. Alteridad como Factor de Desarrollo para la Comprensión del Estudiante en la Etapa Infantil

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    Freddy González Silva

    2009-01-01

    Full Text Available La investigación de alteridad ya no es solo disertación de la filosofía sino que exige respuestas desde otros campos del saber. En este estudio se indaga la condición de interpretación del otro desde la dimensión del desarrollo humano. En efecto, se busca profundizar nuevas concepciones evolutivas en el escolar. De allí pues se parte de una investigación cualitativa. Por consiguiente se indagan 45 alumnos a través de entrevistas semi-estructuradas. Gracias a ello, se produce un conjunto de elementos desde donde acercarse a la realidad del "yo-tú" como parte de la estructura psicológica progresiva del infante. A partir de estos esquemas interpretativos se obtienen insumos que permiten el abordaje de los estudiantes en edades comprendidas entre 6-14 años de sectores populares. Por lo demás se propician vías para intervenciones psicológicas y educativas.

  9. El tacto como factor de humanización en la fase terminal Tact as a humanization factor during the terminal phase

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    Tiberio Alvarez Echeverri

    1993-03-01

    Full Text Available

    Se hace una descripción del tacto como el sentido que aparece más precozmente durante la vida embrionaria y de su significado para el desarrollo armónico de la personalidad y como forma de comunicación Interhumana. Se discute cuándo es apropiado el tacto en las relaciones con los demás; se describen sus cualidades y niveles comunicativos. Finalmente, se destaca la importancia del sentido del tacto como una forma muy efectiva de comunicación con el enfermo en fase terminal.

    The sense of touch is the first one to appear during embryonic Life and Its significance for the armonic development of personality and as an effective mean of communication are described, as well as, the appropiateness of touching in the relationship between persons and the quality and communicative levels of tact. Finally, the relevance of tact for communicating with terminal patients is emphasized.

  10. Úlcera péptica perforada: ¿es la forma de la metanfetamina conocida como “cristal” un nuevo factor de riesgo?

    OpenAIRE

    Martínez-Aguirre, A.E.; Romero-Mejía, C.; Chacón-Cruz, E.

    2012-01-01

    Introducción: Se ha reportado la emergencia de nuevas drogas sintéticas relacionadas con la perforación de la úlcera péptica. Recientemente, se ha observado un incremento en el consumo de metanfetamina inhalada, y hemos descrito una asociación que relaciona el uso frecuente con sintomatología de enfermedad péptica y el evento de perforación. Objetivo: Determinar si el uso de metanfetaminas es un factor relacionado con la enfermedad ácido péptica y la perforación, así como conocer las varia...

  11. "Factores de dificultad para el aprendizaje del inglés como lengua extranjera en estudiantes con bajo rendimiento en inglés de la Universidad Icesi".

    OpenAIRE

    Díaz Mejía, Diana Margarita

    2014-01-01

    El aprendizaje de una lengua es un proceso complejo. Para algunas personas éste se da sin mayores tropiezos, sin embargo, otros no tienen un buen desempeño y su aprendizaje encuentra múltiples dificultades. Diversos investigadores del área del aprendizaje de las lenguas extranjeras, han identificado que factores como la motivación, la ansiedad, los estilos de aprendizaje y las estrategias de estudio son clave en el desarrollo del aprendizaje. La presente investigación estudió de manera explor...

  12. Promover en los adolescentes la identificación de sus valores como factores que les protegen de las adicciones: un modelo vivencial centrado en el estudiante

    OpenAIRE

    González Flores, María del Pilar; Sevillano García, María Luisa; Rey Yedra, Luis

    2007-01-01

    RESUMEN: En el presente trabajo mostramos una propuesta de intervención surgida de un estudio amplio realizado en la ciudad de Xalapa, Veracruz, México con una muestra representativa de adolescentes no consumidores de sustancias adictivas. Esta propuesta pretende ser una aportación para la identificación y el fortalecimiento de los valores como factor de protección a pesar de la disponibilidad y facilidad de acceso a las drogas en el medio. Diseñamos un programa integral que ayude a los niños...

  13. [The Influence of risk factors on visual performance in of phototoxic maculopathy in occupational welders].

    Science.gov (United States)

    Li, Qingtao; Zhang, Xinfang

    2014-10-01

    To investigate the Influence of risk factors that cause the phototoxic maculopathy by welding arc in occupational welders. We examined randomly a group of 86 male occupational welders 172 eyes from some local metal manufacturing enterprise from August 2010 to December 2013. The ophthalmologic examination which the participants underwent thorough including the best visual acuity, fundus examination by the supplementary lens, fundus photography, and the high definition optical coherence tomography (OCT) scan. All participants of this study underwent thorough the medicine examined by a specialist of occupational who prior to the OCT. All the subjects were divided into groups according to age, protection degrees , length of service, operating time . The incidences of phototoxic maculopathy were compared within groups. The subjects was divided randomly into the lutein group and the placebo group. The examination including the best visual acuity, serum lutein concentrations, macular pigmentoptical density (MPOD), Contrast and glare Sensitivity. (1) The total incidence of phototoxic maculopathy is 32.0%. (2) The incidences of phototoxic maculopathy in the strict protection group, the randomed protective group and the nonprofessional protection group were respectively 21.4%, 36.7%, 53.6%. The incidence in the strict protection group was lower than the other two groups, the incidence was the highest in the nonprofessional protection group, and the difference was statistically significant. (3) The longer length of service, and operating time , the more incidence of phototoxic maculopathy develop. (4) The lutein group prior to the placebo group at the best visual acuity, serum lutein concentrations, macular pigmentoptical density (MPOD), Contrast and glare Sensitivity. The risk factors of phototoxic maculopathy in male occupational welders are the length of service, operating time, protection degrees and the lutein assistantly. The incidence of phototoxic maculopathy occurs

  14. Factores de la calidad de vida en el trabajo como predictoras de la intención de permanencia

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    Ricardo Flores Zambada

    2012-03-01

    Full Text Available La calidad de vida en el trabajo (CVT que perciben los empleados de una organización ha sido identificada como predictora de comportamientos no deseados -rotación, ausentismo, reducción en motivación y productividad-, afectando directamente el desempeño de la organización. En este artículo se reportan los resultados de una investigación realizada en una institución de educación superior, en la cual se identifican las variables de CVT que predicen la intención de los empleados de permanecer en la institución. El estudio estuvo basado en una muestra de 1 522 trabajadores quienes respondieron un cuestionario con 82 reactivos. Posteriormente, a través de modelos de regresión logística, se identificó que la equidad salarial interna, la satisfacción con el trabajo, el sentido de pertenencia, la influencia del trabajo en la familia y el ambiente de trabajo son las variables más significativas en la predicción de la intención de permanencia en el empleo.The quality of work life (QWL that employees perceive in an organization has been identifiedas a predictor of unwanted behaviors, such as turnover, absenteeism, low motivation andproductivity. These behaviors directly affect the performance of the organization. We reportthe results of an exploratory study in an institution of higher education, which identifiesvariables that predict QWL and the intentions of the employees to stay in the institution.The study included 1 522 employees who answered a questionnaire including 82 items; thequestionnaire measured 27 variables of QWL and the intention that employees had to remainin the institution. Through logistic regression models, we identify that internal equity pay, jobsatisfaction, commitment, influence of family and work environment are the most significantvariables predicting the intention to remain in the institution.

  15. Turismo como instrumento de desarrollo: Una visión alternativa desde factores humanos, sociales e institucionales

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    Ana Isabel Muñoz Mazón

    2012-01-01

    Full Text Available Se da un tácito consenso asumiendo que la actividad turística es un instrumento efi caz y efi ciente de desarrollo económico y social. Sin embargo, a pesar de las frecuentes declaraciones de índole política a tal respecto, es notoria la falta de un marco teórico-práctico de turismo para el desarrollo. Muchas cuestiones clave necesitan un análisis más profundo: (i qué entendemos como desarrollo a estos efectos; (ii cuál es la contribución del turismo a ese desarrollo; y (iii qué formulación y alcance deben tener las políticas turísticas y su gobernanza para que el turismo sea realmente un instrumento de desarrollo. En este artículo se expone un breve análisis-respuesta a estas cuestiones. A la vista de los paradigmas de desarrollo de las últimas décadas (modernización, neoliberalismo, dependencia, y sostenibilidad, se consideran propuestas apoyadas en la Nueva Economía Institucional y la Teoría del Capital Social, y posibles contenidos de la política y gobernanza del turismo vis-à-vis el desarrollo. Se presentan también a este respecto los resultados de la consulta, realizada en 2011, a 60 expertos de 15 países, en los ámbitos académico, profesional y político.

  16. Two speed factors of visual recognition independently correlated with fluid intelligence.

    Science.gov (United States)

    Tachibana, Ryosuke; Namba, Yuri; Noguchi, Yasuki

    2014-01-01

    Growing evidence indicates a moderate but significant relationship between processing speed in visuo-cognitive tasks and general intelligence. On the other hand, findings from neuroscience proposed that the primate visual system consists of two major pathways, the ventral pathway for objects recognition and the dorsal pathway for spatial processing and attentive analysis. Previous studies seeking for visuo-cognitive factors of human intelligence indicated a significant correlation between fluid intelligence and the inspection time (IT), an index for a speed of object recognition performed in the ventral pathway. We thus presently examined a possibility that neural processing speed in the dorsal pathway also represented a factor of intelligence. Specifically, we used the mental rotation (MR) task, a popular psychometric measure for mental speed of spatial processing in the dorsal pathway. We found that the speed of MR was significantly correlated with intelligence scores, while it had no correlation with one's IT (recognition speed of visual objects). Our results support the new possibility that intelligence could be explained by two types of mental speed, one related to object recognition (IT) and another for manipulation of mental images (MR).

  17. El síndrome de Burnout como factor de riesgo en la enfermería:detección y prevención (revisión bibliográfica)

    OpenAIRE

    Leonardo Díez, María Montserrat

    2015-01-01

    La enfermería se describe como una profesión vocacional, de ayuda y cuidados con elevados niveles de responsabilidad, en la que las relaciones interpersonales y las exigencias sociales juegan un importante papel. Por lo que se transcribe no sólo como una profesión agotadora físicamente sino también emocionalmente; dichos factores la engloban como el marcaje perfecto del conocido estrés laboral crónico o síndrome de burnout. Este síndrome se define como aquel cansancio emocional, consecuencia ...

  18. Los grupos de socialización como factor protector contra la depresión en personas ancianas: Baranquilla, Colombia

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    Tuesca-Molina Rafael

    2003-01-01

    Full Text Available Fundamento: La depresión en personas ancianas es un problema de salud pública dada su prevalencia y comorbilidad. Los objetivos de este trabajo son determinar el papel de los grupos de socialización como factor protector para depresión; determinar otros factores socioculturales asociados; estimar la prevalencia y determinar la concordancia de las pruebas de cribado para depresión - criterios de la Asociación Americana de Psiquiatría y el test de Hamilton. Método: Estudio descriptivo transversal. Participaron 602 personas ancianas de entre 60 y 94 años (223 varones y 379 mujeres, muestra representativa para la población residente del sur-occidente de Barranquilla, Colombia. Previo consentimiento, se aplicó una encuesta de administración directa. Se estudiaron las variables demográficas, socioeconómicas, limitación física, enfermedades degenerativas, disfunción familiar y dos tests de depresión para determinar la concordancia. Se realizó análisis bivariado entre la depresión y la pertinencia a grupos de socialización al igual que la depresión y otras variables. Se determinó análisis de cribado e índice de Kappa para la concordancia de pruebas. Resultados: La participación en grupos de socialización fue un factor protector de presentar depresión. (OR: 0,5, IC 95%: 0,34-0,73. La prevalencia de depresión fue de 29,9% (IC95%: 21,4%-39,4%, siendo en los varones 32,7%. La concordancia con el test de Kappa fue 0,63. (moderada a buena La sensibilidad fue del 56,1%, (48,5% a 63,4%; la especificidad de 99,3%, (IC95%: 97,8%-99,8% y el valor predictivo positivo del 97,1% ( IC95%: 97,2%-99,3%. Conclusiones: Esta investigación determina factores de riesgo para padecer depresión en ancianos potencialmente modificables. La participación en grupos de socialización es un factor protector. La disfunción familiar de tipo moderado y severo, las limitaciones sensoriales como ceguera y sordera, la soledad, ausencia de vivienda y bajos

  19. Analysis of Factors Affecting Women of Childbearing Age to Screen Using Visual Inspection with Acetic Acid.

    Science.gov (United States)

    Sidabutar, Sondang; Martini, Santi; Wahyuni, Chatarina Umbul

    2017-02-01

    The purpose of this study was to evaluate patient factors such as knowledge, attitude, motivation, perception, socio-economic status and travel time to health facilities and assess how these factors affected patients' decision to pursue cervical cancer screening with visual inspection with acetic acid (VIA). A total of 80 women of childbearing age who visited Kenjeran and Balongsari Public Health Centers for health assessments were involved in this study. Patients who agreed to participate in the study underwent a verbal questionnaire to evaluate various factors. Bivariate analysis concluded that knowledge, attitude, motivation, perception, socioeconomic status, and travel time to health facilities were significantly different between women who received VIA screening and women who did not receive VIA screening ( p motivation, perception, socio-economic status, and the travel time to health facilities accounted for 2.920-fold, 2.043-fold, 3.704-fold, 2.965-fold, 3.198-fold and 2.386-fold possibility, respectively, of patients to pursue cervical cancer screening with VIA. Multivariate analysis showed that perception, socio-economic status, and travel time to health facilities were the most important factors influencing whether or not women pursued VIA screening. Knowledge, attitude, motivation, perception, socio-economic status, and travel time to health facilities appears to affect women's' decision to pursue cervical cancer screening with VIA, with the largest intake being the motivational factor.

  20. Prognostic factors and visual outcome for fireworks-related burns during spring festival in South China.

    Science.gov (United States)

    Lin, Ying; Liang, Xuanwei; Liu, Xialin; Qu, Bo; Ni, Yao; Jiang, Shuhong; Liu, Yizhi

    2012-01-01

    The aim of this study was to evaluate the clinical features and the visual results of fireworks-related ocular burn injuries and to determine the prognostic factors. The authors conducted a prospective observational study of 53 eyes of 46 consecutive patients with fireworks-related ocular injury who visited Zhongshan Ophthalmic Center during the Spring Festival in Southern China. Eyes were graded using an ocular trauma classification system, which included age of the patient. Patients were followed up for a minimum of 5 months. Best-corrected visual acuity at the last follow-up was considered the final visual outcome. Data were analyzed with SPSS version 13.0 (SPSS, Inc., Chicago, IL). Results of statistical tests were considered statistically significant for P < .05. Almost all patients (89.1%) were male with a mean age of 14.3 ± 8.5 years. There was preponderance of young patients, with 63.0% (29) of the patients being younger than 15 years. In addition to their ocular injuries, 23 patients (50.0%) also had eyelid and/or facial burns. The most common initial anterior segment injuries were open-globe injuries (42, 79.3%), conjunctival burns (16, 30.2%), and foreign bodies (18, 34.0%). Others were traumatic cataract, lens subluxation and dislocation, and vitreous hemorrhage. Management after first aid included pars plana vitrectomy (9, 17.0%), aspiration of cataract (18, 34.0%), retinal reattachment (8, 15.1%), and enucleation. Amniotic membrane grafts were used in 11 patients (20.8%) with serious conjunctiva burns and corneal contusions and abrasions who were thought to have a good prognosis. Fireworks-related ocular injuries included a variety of clinical manifestations. Examinations such as B scan, optical coherence tomography, and ultrasound biomicroscopy helped to make a correct diagnosis and plan further treatment. Fireworks-related ocular injuries commonly affect young male subjects of Southern China. Visual outcomes were frequently poor and visually

  1. Gestión de inventarios como factor de competitividad, en el sector metalmecánico de la región occidental de Venezuela

    Directory of Open Access Journals (Sweden)

    Gabriel J. Aguilar O.

    2009-01-01

    Full Text Available La investigación que se presenta a continuación, tiene como objeto analizar la gestión de inventario como factor de competitividad, en las empresas del Sector Metalmecánico de la Región Occidental de Venezuela. La metodología es de tipo descriptivo, no experimental, transeccional. La población se compone de veinte (20 empresas del sector metalmecánico destinadas a la producción de máquinas herramientas, específicamente tornos y fresadoras, circunscritas a la región del occidente de Venezuela, tomándose para el estudio, la totalidad de las mismas. Los resultados obtenidos mediante el análisis estadístico, permiten concluir que la gestión de inventario dentro de la industria metalmecánica de la Región Occidental de Venezuela, no constituye un factor de competitividad en las empresas del sector

  2. LA COLABORACIÓN DOCENTE COMO FACTOR DE APRENDIZAJE Y PROMOTOR DE MEJORA. UN ESTUDIO DE CASOS

    Directory of Open Access Journals (Sweden)

    Gabriela J. Krichesky

    2018-01-01

    Full Text Available La investigación ha demostrado que la colaboración docente es una condi- ción esencial para impulsar procesos de innovación y mejora en los centros educativos. Sin embargo no todo trabajo colaborativo estimula mejoras sustanciales en la enseñanza o desarrolla la capacidad de innovación del profesorado. Por ello esta investigación pretende describir y comprender cuáles son las prácticas colaborativas que pueden potenciar el aprendizaje del profesorado, generando así mayor capacidad colectiva para implementar procesos de innovación y mejora escolar. Dada la naturaleza cualitativa de nuestra indagación, optamos por un estudio de casos instrumental y de corte etnográfico en el que se analizan en profundidad dos institutos de educación secundaria caracterizados por una acentuada cultura de trabajo colectivo y procesos de innovación exitosos. Los datos se recogieron a través de entre- vistas semi-estructuradas, análisis de documentación y observaciones parti- cipantes y no participantes. Se encontró que la colaboración docente puede manifestarse a través de prácticas ligadas a la coordinación , el desarrollo conjunto y la resolución de problemas . La coordinación se asoma como una de las modalidades más débiles de trabajo colaborativo: no requiere de valores compartidos, no genera sólidas relaciones de interdependencia y no fomenta necesariamente el aprendizaje docente. El desarrollo de proyectos interdisci- plinarios y la resolución conjunta de problemas, en cambio, demandan una fuerte interdependencia sobre la base de valores compartidos y se asientan en intercambios con una gran potencialidad para generar nuevos aprendizajes. La investigación sobre la colaboración docente resulta estratégica de cara al cambio en educación: entender qué hacen y de qué hablan los profesores cuando se reúnen y qué impacto tienen estos intercambios en su capacidad de aprendizaje permitirá sin dudas profundizar nuestro conocimiento

  3. Factors affecting the stability of visual function following cessation of occlusion therapy for amblyopia.

    Science.gov (United States)

    Tacagni, Daniel J; Stewart, Catherine E; Moseley, Merrick J; Fielder, Alistair R

    2007-06-01

    To identify factors that predict which children with amblyopia are at greatest risk of regression of visual acuity (VA) following the cessation of occlusion therapy. A retrospective analysis was performed of 182 children (mean age at cessation of treatment; 5.9+/-1.6 years) who had undergone occlusion therapy for unilateral amblyopia, and had been followed up at least once within 15 months of cessation. Statistical analysis was used to identify whether change in VA following treatment cessation had any association with various factors, including the child's age, type of amblyopia, degree of anisometropia, initial severity of amblyopia, binocular vision status, length and dose of occlusion therapy, and VA response to treatment. At 1 year, follow-up from treatment cessation, children with "mixed" amblyopia (both anisometropia and strabismus) demonstrated significantly (p=0.03) greater deterioration in VA (0.11+/-0.11 log units) than children with only anisometropia (0.02+/-0.08 log units) or only strabismus (0.05+/-0.10 log units). However, none of the other factors investigated were found to be significant predictors. This study supports previous research that it is possible to identify those children most at risk of deterioration in VA following cessation of occlusion therapy. The presence of mixed amblyopia was the only risk factor identified in this study. Management of amblyopia should take this into account, with a more intensive follow-up recommended for those with both anisometropia and strabismus (mixed) amblyopia.

  4. Viscosidade como fator frenador de rotações Viscoelastic substances as a breaking factor of ocular rotations

    Directory of Open Access Journals (Sweden)

    André Augusto Homsi Jorge

    2003-08-01

    Full Text Available OBJETIVO: Determinar se forças de atrito viscoso podem, sob o ponto de vista quantitativo, agir como possíveis promotoras de estabilização ocular com manutenção dos movimentos de rotação, dando noção dos valores necessários para a aplicabilidade no sistema ocular. MÉTODOS: Um modelo mecânico foi elaborado para a medida de forças necessárias para vencer o atrito de uma esfera de alumínio parcialmente mergulhada em um líquido viscoso. Foram testadas soluções de metilcelulose de 1% a 6% (com variação de 0,5% e dois produtos viscoelásticos (Viscoat® e Provisc®. Outra variável foi a área de contato entre a esfera e o líquido viscoso. RESULTADOS: A força encontrada, após correções e descontos apropriados, foi significativa (acima de 5 gf apenas nas soluções de metilcelulose 5,5% e 6% e somente na maior área de contato testada. CONCLUSÃO: Os líquidos viscosos testados aparentemente não são capazes de obter força de atrito suficiente para a estabilização ocular, com exceção das soluções de metilcelulose 5,5% e 6% mas somente na maior área de contato testada (que correspondeu a 26,2% da área total da esfera.PURPOSE: The aim of this study was to find out if the viscous friction forces could, from the quantitative point of view, act as possible promoters of ocular stabilization keeping the rotational movements and give an idea of the necessary amount for the applicability to the ocular system. METHODS: A mechanic model was made to measure the necessary forces to overcome the friction of the aluminium sphere partially kept in a viscous liquid. Methylcellulose solutions at 1% to 6% (with a variation of 0.5% and viscoelastic products (Viscoat® and Provisc® were tested. Another variable was the area of contact between the sphere and the viscous liquid. RESULTS: The force that was found, after appropriate corrections and discounts, was meaningful (over 5 gf only in the of methylcellulose solutions at 5.5% and 6

  5. Condiciones de trabajo en la producción de comidas como factores de riesgo para la enfermedad venosa de miembros inferiores

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    Clarissa Medeiros da Luz Bertoldi

    2007-03-01

    Full Text Available El presente estudio tiene por objetivo identificar los factores que pueden desencadenar o, según el caso, empeorar el desarrollo de enfermedades venosas en los miembros inferiores en operarios de una cocina colectiva, denominada Unidad de Alimentación y Nutrición. Se ha realizado un estudio cualitativo descriptivo de las condiciones de trabajo de los operarios de la cocina del Hospital Universitario de Florianópolis, al sur de Brasil. Se ha utilizado la metodología del Análisis Ergonómico del Trabajo. Como técnicas para la recopilación de datos se han realizado entrevistas con cuestionario aplicado por el observador, evaluación del Índice de Masa Corporal, examen clínico específico, volumetría por desplazamiento de agua de miembros inferiores, observación directa de las actividades desarrolladas en el ambiente de trabajo, con registro de imágenes y utilización de material como podómetro, cronómetro y termo-higrómetro digital. Tras la realización del estudio se ha podido observar la presencia de distintos grados de enfermedad venosa en un 78,57% de los casos, con una variación media para volumetría del 5,13%. Se han encontrado factores de riesgo para enfermedad venosa en el ambiente investigado, tales como, la postura de bipedestación por largos periodos de tiempo, temperatura y humedad elevados, la carga inadecuada de peso y el sobrepeso de los operarios.The present study evaluates which factors may influence the appearance or severity of lower limb venous disease on workers of a Unit of Food Service. A qualitative research, in the form of a case study, was carried out at a hospital Unit of Food Service located in Florianópolis, Santa Catarina, Brazil. The followed methodology was the Ergonomic Analysis of Work. As for data collection, the following were used: interviews and Body Mass Index (BMI assessment; specific clinical examination, water displacement volumetry of the lower extremities, in addition, on site direct

  6. Comparação entre acuidade visual e photoscreening como métodos de triagem visual para crianças em idade escolar Comparison between visual acuity and photoscreening used like visual screening methods for scholar aged children

    Directory of Open Access Journals (Sweden)

    Roberta Lílian Fernandes de Sousa

    2012-12-01

    Full Text Available OBJETIVO: Avaliar a sensibilidade do aparelho photoscreener na detecção de alterações oculares em crianças informantes, comparando os dados à acuidade visual obtida pela tabela E de Snellen. MÉTODOS: Foram avaliadas 500 crianças de idades entre 5 e 12 anos, de escola do município de Botucatu, estado de São Paulo. As crianças foram submetidas ao teste de acuidade visual pela tabela E de Snellen e foram fotografadas utilizando-se o aparelho photoscreenerTM system model MTI-PS100, seguindo-se a análise das fotos obtidas. RESULTADOS: Houve concordância negativa (criança com boa acuidade visual e teste negativo com o photoscreener em 81,0%; concordância positiva (acuidade visual alterada e teste positivo em 7,6% e não houve concordância de resultados em 11,0% dos casos. CONCLUSÃO: A avaliação comparativa entre o método da acuidade visual pela tabela E de Snellen e o photocreener para detecção de problemas visuais mostrou alta concordância. Os autores sugerem entretanto, a triagem usando tabelas de acuidade visual quando se trata de crianças informantes, devido aos custos com o aparelho.PURPOSE: To evaluate the sensitivity of the photoscreener equipment to detect ocular changes in informative children comparing with the data obtained by the E Snellen´s table. METHODS: We evaluated 500 children between 5 and 12 years old, from a school of Botucatu city, São Paulo state. The children were submitted to a visual acuity test using the Snellen´s E Table and were photographed with the photoscreenerTM system model MTI-PS100, following the photos' analyze. RESULTS: There were negative agreement (children with a good visual acuity and a negative test with the Photoscreener in 81.0%; positive agreement (children without a good visual acuity and a positive test in 7.6% and there was no agreement of the results in 11.0% (9 of the cases. CONCLUSION: The comparative analysis between the visual acuity test using the Snellen's E table and

  7. Percepción de calidad como factor de competitividad de la infraestructura de hoteles en Santa Marta y Barranquilla

    Directory of Open Access Journals (Sweden)

    Carlos Labarcés Ballestas

    2014-01-01

    Full Text Available Los hoteles con categoría cinco estrellas en las ciudades de Barranquilla y Santa Marta tienen un papel determinante en el desarrollo del turismo de la región; la infraestructura de sus instalaciones y el servicio prestado por el personal, son los dos factores determinantes para brindar un servicio de calidad. En este trabajo se abordará el papel que juega la infraestructura de estos hoteles en la percepción de calidad que tienen los clientes, para establecer así el nivel de competitividad e internacionalización que estos presentan. En la primera parte se establece la percepción de los clientes con respecto a las instalaciones, utilizando el modelo HOTELQUAL, seguidamente se estudia la relación existente entre infraestructura y organización en estos hoteles. Por último, se describe la incidencia de la infraestructura y el servicio desde la óptica de los gerentes.Palabras clave: calidad del servicio; competitividad; industria hotelera; infraestructura; turismo.Quality perception as a competitiviness factor within hotels infraestructure in both Santa Marta and Barranquilla citiesAbstractThe five-star hotels in the cities of Barranquilla and Santa Marta have a decisive role in the development of tourism in the region, the infrastructure of their facilities and the service provided by the staff, are the two determinant factors to provide a quality service. In this paper is addressed the role of the infrastructure of these hotels in the perception of quality that customers have, in order to establish the level of competitiveness and internationalization they present. In the first part the customer perception regarding to facilities is established, using the model HOTELQUAL next the relationship between infrastructure and organization in these hotels is studied. Finally, it is described the impact of the infrastructure and the service from the perspective of the managers.Keywords: quality of service; competitiveness; hotel industry

  8. Victimización en la pareja como factor de riesgo en mujeres en prisión

    Directory of Open Access Journals (Sweden)

    Ismael Loinaz

    2017-12-01

    Full Text Available Introducción: la presencia de victimización por violencia contra la pareja (VCP en mujeres condenadas a prisión parece ser un importante factor de riesgo para la criminalidad, la continuidad delictiva y la desadaptación social. Objetivo: en este trabajo se ha querido comparar la presencia de distintos factores de riesgo criminógenos en un grupo de mujeres internas en centros penitenciarios de Cataluña (España, comparando las que habían sido o no víctimas de VCP. Método: se analizaron 98 internas que cumplían condena de prisión por distintos tipos delictivos, evaluadas entre los años 2010 y 2012 con la herramienta para evaluar el riesgo RisCanvi. Resultados: la prevalencia de la victimización por VCP fue del 23%. El 63% presentaba problemas de empleo, el 53% contaba con expedientes penitenciarios, el 61% tenía problemas de socialización y/o crianza y el 55% mostró problemas de impulsividad y/o inestabilidad emocional. Las mujeres que habían sufrido violencia en la pareja presentaron significativamente más factores de riesgo clínicos y de personalidad y, en conjunto, más necesidades desde el punto de vista del tratamiento y la gestión del riesgo. Conclusiones: la victimización agrava el perfil de riesgo en mujeres presas. Se discuten las implicaciones de los resultados para la prevención y el tratamiento en el ámbito de la delincuencia femenina.

  9. Elevated expression of brain-derived neurotrophic factor facilitates visual imprinting in chicks.

    Science.gov (United States)

    Suzuki, Keiko; Maekawa, Fumihiko; Suzuki, Shingo; Nakamori, Tomoharu; Sugiyama, Hayato; Kanamatsu, Tomoyuki; Tanaka, Kohichi; Ohki-Hamazaki, Hiroko

    2012-12-01

    With the aim of elucidating the neural mechanisms of early learning, we studied the role of brain-derived neurotrophic factor (BDNF) in visual imprinting in birds. The telencephalic neural circuit connecting the visual Wulst and intermediate medial mesopallium is critical for imprinting, and the core region of the hyperpallium densocellulare (HDCo), situated at the center of this circuit, has a key role in regulating the activity of the circuit. We found that the number of BDNF mRNA-positive cells in the HDCo was elevated during the critical period, particularly at its onset, on the day of hatching (P0). After imprinting training on P1, BDNF mRNA-positive cells in the HDCo increased in number, and tyrosine phosphorylation of TrkB was observed. BDNF infusion into the HDCo at P1 induced imprinting, even with a weak training protocol that does not normally induce imprinting. In contrast, K252a, an antagonist of Trk, inhibited imprinting. Injection of BDNF at P7, after the critical period, did not elicit imprinting. These results suggest that BDNF promotes the induction of imprinting through TrkB exclusively during the critical period. © 2012 The Authors Journal of Neurochemistry © 2012 International Society for Neurochemistry.

  10. Epithelial ingrowth following laser in situ keratomileusis (LASIK): prevalence, risk factors, management and visual outcomes.

    Science.gov (United States)

    Ting, Darren Shu Jeng; Srinivasan, Sathish; Danjoux, Jean-Pierre

    2018-01-01

    The number of laser in situ keratomileusis (LASIK) procedures is continuing to rise. Since its first application for correcting simple refractive errors over 25 years ago, the role of LASIK has extended to treat other conditions, including postkeratoplasty astigmatism/ametropia, postcataract surgery refractive error and presbyopia, among others. The long-term effectiveness, predictability and safety have been well established by many large studies. However, due to the creation of a potential interface between the flap and the underlying stroma, interface complications such as infectious keratitis, diffuse lamellar keratitis and epithelial ingrowth may occur. Post-LASIK epithelial ingrowth (PLEI) is an uncommon complication that usually arises during the early postoperative period. The reported incidence of PLEI ranged from 0%-3.9% in primary treatment to 10%-20% in retreatment cases. It can cause a wide spectrum of clinical presentations, ranging from asymptomatic interface changes to severe visual impairment and flap melt requiring keratoplasty. PLEI can usually be treated with mechanical debridement of the affected interface; however, additional interventions, such as alcohol, mitomycin C, fibrin glue, ocular hydrogel sealant, neodymium:yttriumaluminum garnet laser and amniotic membrane graft, may be required for recurrent or refractory cases. The aims of this review are to determine the prevalence and risk factors of PLEI; to describe its pathogenesis and clinical features and to summarise the therapeutic armamentarium and the visual outcome of PLEI.

  11. LA TECNOLOGÍA DE LA INFORMACIÓN COMO FACTOR COMPETITIVO: UN ESTUDIO EN EL APL COSECHA METAL-MECÁNICO SANTA ROSA/HORIZONTINA, RS, BRASIL

    Directory of Open Access Journals (Sweden)

    Graniel, Gilmar J.

    2011-06-01

    Full Text Available El presente artículo aborda la utilización de la Tecnología de la Información (TI como factor competitivo en un Arreglo Productivo Local (APL Cosecha Metal-Mecánica en el estado de Río Grande del Sur, Brasil y tiene como objetivo buscar la comprensión de como el uso de la TI contribuye al aumento de la competitividad. Para alcanzar este objetivo, fue realizada una investigación en las empresas que componen el APL. Los resultados de la investigación indicaron que las empresas perciben la importancia del uso de la TI, pero que, en la práctica, su utilización es limitada, sobre todo tratándose de la planificación de la TI. Otro de los resultados que se encontró es que las empresas, aunque formen parte del APL, aún no colaboran entre sí, ya sea a través del cambio de informaciones, o a través de Sistemas de Información. Las principales recomendaciones ante estos resultados es que las empresas traten de actuar activamente para el fortalecimiento del APL. En lo que se refiere al uso de la TI se hace necesaria la planificación y la inversión en la adquisición de sistemas integrados para la mejor gerencia de las informaciones, lo cual contribuirá al aumento de la competitividad de las empresas que pertenecen al arreglo.

  12. Cognitive performance in visual memory and attention are influenced by many factors

    DEFF Research Database (Denmark)

    Wilms, Inge Linda; Nielsen, Simon

    Visual perception serves as the basis for much of the higher level cognitive processing as well as human activity in general. Here we present normative estimates for the following components of visual perception: the visual perceptual threshold, the visual short-term memory capacity and the visual...... perceptual encoding/decoding speed (processing speed) of visual short-term memory based on an assessment of 94 healthy subjects aged 60-75. The estimates are presented at total sample level as well as at gender level. The estimates were modelled from input from a whole-report assessment based on A Theory...... speed of Visual Short-term Memory (VTSM) but not the capacity of VSTM nor the visual threshold. The estimates will be useful for future studies into the effects of various types of intervention and training on cognition in general and visual attention in particular. (...

  13. Risk Factors for Visual Field Progression in the Groningen Longitudinal Glaucoma Study : A Comparison of Different Statistical Approaches

    NARCIS (Netherlands)

    Wesselink, Christiaan; Marcus, Michael W.; Jansonius, Nomdo M.

    2012-01-01

    Purpose: To identify risk factors for visual field progression in glaucoma and to compare different statistical approaches with this risk factor analysis. Patients and Methods: We included 221 eyes of 221 patients. Progression was analyzed using Nonparametric Progression Analysis applied to Humphrey

  14. The Advanced Glaucoma Intervention Study (AGIS): 12. Baseline risk factors for sustained loss of visual field and visual acuity in patients with advanced glaucoma.

    Science.gov (United States)

    2002-10-01

    To examine the relationships between baseline risk factors and sustained decrease of visual field (SDVF) and sustained decrease of visual acuity (SDVA). Cohort study of participants in the Advanced Glaucoma Intervention Study (AGIS). This multicenter study enrolled patients between 1988 and 1992 and followed them until 2001; 789 eyes of 591 patients with advanced glaucoma were randomly assigned to one of two surgical sequences, argon laser trabeculoplasty (ALT)-trabeculectomy-trabeculectomy (ATT) or trabeculectomy-ALT-trabeculectomy (TAT). This report is based on data from 747 eyes. Eyes were offered the next intervention in the sequence upon failure of the previous intervention. Failure was based on recurrent intraocular pressure elevation, visual field defect, and disk rim criteria. Study visits occurred every 6 months; potential follow-up ranged from 8 to 13 years. For each intervention sequence, Cox multiple regression analyses were used to examine the baseline characteristics for association with two vision outcomes: SDVF and SDVA. The magnitude of the association is measured by the hazard ratio (HR), where HR for binary variables is the relative change in the hazard (or risk) of the outcome in eyes with the factor divided by the hazard in eyes without the factor, and HR for continuous variables is the relative change in the hazard (or risk) of the outcome in eyes with a unit increase in the factor. Characteristics associated with increased SDVF risk in the ATT sequence are: less baseline visual field defect (hazard ratio [HR] = 0.86, P <.001, 95% CI = 0.82-0.90), male gender (HR = 2.23, P <.001, 1.54-3.23), and worse baseline visual acuity (HR = 0.96, P =.001, 0.94-0.98); in the TAT sequence: less baseline visual field defect (HR = 0.93, P =.001, 0.89-0.97) and diabetes (HR = 1.87, P =.007, 1.18-2.97). Characteristics associated with increased SDVA risk in both treatment sequences are better baseline acuity (ATT: HR = 1.05, P <.001, 1.02-1.09; TAT: HR = 1

  15. Aluminum as a risk factor for Alzheimer's disease Aluminio como factor de riesgo para la enfermedad de Alzheimer Alumínio como fator de risco para a doença de Alzheimer

    Directory of Open Access Journals (Sweden)

    Pricilla Costa Ferreira

    2008-02-01

    Full Text Available The purpose of the study was to condense existing scientific evidence about the relation between aluminum (Al exposure and risk for the development of Alzheimer's Disease (AD, evaluating its long-term effects on the population's health. A systematic literature review was carried out in two databases, MEDLINE and LILACS, between 1990 and 2005, using the uniterms: "Aluminum exposure and Alzheimer Disease" and "Aluminum and risk for Alzheimer Disease". After application of the Relevance Test, 34 studies were selected, among which 68% established a relation between Al and AD, 23.5% were inconclusive and 8.5% did not establish a relation between Al and AD. Results showed that Al is associated to several neurophysiologic processes that are responsible for the characteristic degeneration of AD. In spite of existing polemics all over the world about the role of Al as a risk factor for AD, in recent years, scientific evidence has demonstrated that Al is associated with the development of AD.El objetivo del estudio fue condensar la evidencia científica existente entre la exposición al aluminio (Al y el riesgo para el desarrollo de la Enfermedad de Alzheimer (EA, evaluando los efectos para la salud de la población a largo plazo. Una revisión sistemática de la literatura científica existente entre 1990 y 2005, fue realizada en dos bases de datos, MEDLINE y LILACS, utilizando los unitermos: "Aluminium exposure and Alzheimer Disease" y "Aluminium and risk for Alzheimer Disease". Fueron seleccionados 34 trabajos para la investigación, de los cuales 68% establecieron relação entre el Al y la EA, 23,5% no presentaron datos conclusivos y 8,5% no establecieron ninguna relación entre el Al y la EA. A partir de los resultados obtenidos, se verifica que el Al interviene en diversos procesos neurofisiológicos responsables por la degeneración característica de la EA. A pesar de la polémica existente en el médio científico, la evidencia cient

  16. Cerebral Damage May Be the Primary Risk Factor for Visual Impairment in Preschool Children Born Extremely Premature

    DEFF Research Database (Denmark)

    Slidsborg, Carina; Bangsgaard, Regitze; Fledelius, Hans Callø

    2012-01-01

    OBJECTIVES To investigate the importance of cerebral damage and retinopathy of prematurity (ROP) for visual impairment in preschool children born extremely premature and to determine the primary risk factor of the two. METHODS A clinical follow-up study of a Danish national cohort of children born......, 3.0-25.2; P visual impairment in children born extremely premature, and cerebral damage may be the primary risk...... participants were identified through the National Birth Register and invited to participate in a clinical examination. The children were evaluated with regard to visual acuity, foveal sequelae, and maximum ROP stage and the presence of global developmental deficits (an indicator for cerebral damage...

  17. Las capacidades de mercadotecnia como un factor de incide en la competitividad de los productores de flores en México

    Directory of Open Access Journals (Sweden)

    Ana Lilia Coria Páez

    2016-03-01

    Full Text Available En México existe un enorme potencial del sector floricultor que desafortunadamente no se ha aprovechado: la privilegiada posición geográfica de México, su cercanía con Estados Unidos y Canadá, la variedad de climas y suelos propicios para la actividad; sin embargo, la oportunidad la han aprovechado otros países. El presente estudio empírico tiene como objetivo determinar en qué medida la calidad, la innovación, las capacidades gerenciales y de mercadotecnia inciden en la competitividad de los productores del sector floricultor del pueblo de San Andrés Totoltepec, Tlalpan. Para tal efecto se realizaron entrevistas y se aplicó un cuestionario. Dentro de los hallazgos se encontró que las capacidades de mercadotecnia y la competitividad presentan una correlación apreciable y más bien alta de 0.653, lo cual aporta evidencia empírica relacionada con la mercadotecnia como uno de los factores internos con mayor capacidad para generar competitividad (Ketchen, Hult y Slater, 2007; Kloter, 1994.

  18. A Human Factors Study on an Information Visualization System for Nuclear Power Plants Decommissioning Engineering

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Chih Wei; Yang, Li Chen [Institute of Nuclear Energy Research, Atomic Energy Council, Longtan (China)

    2014-08-15

    Most nuclear power plants (NPPs) in the world have an operating life of up to 40 years. The utility should prepare a comprehensive decommissioning plan with purpose to document and to display how decommissioning activities can be safely performed. In the past, most studies related to NPPs decommissioning planning put emphasis on technical issues, little attention have been given to human factors in decommissioning activities. In fact, human factors are a critical factor to successful NPPs decommissioning. NPPs decommissioning will face potential risks. These risks include not only dismantling and moving large equipment but also treating with the radioactive materials. Using information visualization system, such as virtual reality (VR) technology, for staff training can improve decommissioning work safety and economy. Therefore, this study presents a study using VR to solve real world problems in the nuclear plant decommissioning. Then appropriate cases for introducing VR systems are summarized and future prospects are given. This study assesses availability and performance of the work training system by using heuristic evaluation and actual experiment. In the result, block type of radiation visibility was found relatively better both in performance and person's preference than other types. The results presented in this paper illustrate the VR applications a NPP decommissioning perspective.

  19. A Human Factors Study on an Information Visualization System for Nuclear Power Plants Decommissioning Engineering

    International Nuclear Information System (INIS)

    Yang, Chih Wei; Yang, Li Chen

    2014-01-01

    Most nuclear power plants (NPPs) in the world have an operating life of up to 40 years. The utility should prepare a comprehensive decommissioning plan with purpose to document and to display how decommissioning activities can be safely performed. In the past, most studies related to NPPs decommissioning planning put emphasis on technical issues, little attention have been given to human factors in decommissioning activities. In fact, human factors are a critical factor to successful NPPs decommissioning. NPPs decommissioning will face potential risks. These risks include not only dismantling and moving large equipment but also treating with the radioactive materials. Using information visualization system, such as virtual reality (VR) technology, for staff training can improve decommissioning work safety and economy. Therefore, this study presents a study using VR to solve real world problems in the nuclear plant decommissioning. Then appropriate cases for introducing VR systems are summarized and future prospects are given. This study assesses availability and performance of the work training system by using heuristic evaluation and actual experiment. In the result, block type of radiation visibility was found relatively better both in performance and person's preference than other types. The results presented in this paper illustrate the VR applications a NPP decommissioning perspective

  20. Nursing students' work, a risk factor for the consumption of alcohol and other drugs El trabajo del estudiante de enfermería como un factor de riesgo para el consumo de alcohol y otras drogas O trabalho do acadêmico de enfermagem como fator de risco para o consumo de álcool e outras drogas

    Directory of Open Access Journals (Sweden)

    Elias Barbosa de Oliveira

    2008-08-01

    Full Text Available This descriptive, qualitative study aims to describe risk factors, in the work environment, for the consumption of alcohol and other drugs, and also to confirm the importance of protective factors. Interview technique was used with 51 nursing students at the Rio de Janeiro State University, who work in the city's health services. RESULTS: students related work as a risk factor for the consumption of drugs such as alcohol, cigarettes and anxiolytics. We conclude that working with participative methodologies, valuing student's former experiences, family and group life, and individual characteristics are essential in the preventive approach. Attention to protective factors is recommended.Estudio cualitativo descriptivo que tuvo por objetivo describir los factores de riesgo dentro del ambiente laboral para el consumo de alcohol y otras drogas; así como confirmar la importancia de factores de protección. Se utilizó la técnica de entrevista con 51 estudiantes de enfermería de la Universidad del Estado de Río de Janeiro, que se encontraban en los servicios de salud de la ciudad. RESULTADOS: los alumnos consideraron al trabajo como un factor de riesgo para el consumo de alcohol, cigarro y ansiolíticos. Se concluyó que se debe trabajar en la prevención con métodos participativos y valorar las experiencias pasadas de los alumnos, la convivencia familiar y grupal y las características individuales. Fue recomendada especial atención a los factores de protección.Estudo qualitativo descritivo que objetivou descrever os fatores de risco no ambiente de trabalho para o consumo de álcool e outras drogas, e também ratificar a importância dos fatores protetores. Utilizou-se entrevista com roteiro em 51 acadêmicos de enfermagem da Universidade do Estado do Rio de Janeiro que atuam nos serviços de saúde do município. RESULTADOS: os alunos referiram ao trabalho como fator de risco para o consumo de drogas como o álcool, cigarro e ansiol

  1. Oral Candida as an aggravating factor of mucositis Induced by radiotherapy; Candida Oral como fator agravante da mucosite radioinduzida

    Energy Technology Data Exchange (ETDEWEB)

    Simoes, Cristiane Araujo; Castro, Jurema Freire Lisboa de; Cazal, Claudia [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de odontologia

    2011-07-01

    Antineoplastic treatment induces some undesirable consequences in head and neck cancer patients. Often, the emergence of major clinical manifestations, such as oral mucositis, results in temporary interruption of the treatment, decreasing the patients' quality of life, and increasing hospital costs. Radio-induced or chemo-induced oral mucositis is possibly aggravated by opportunist fungal infections, which turn the mucositis more resistant to the conventional treatments. Objective: this study aims to identify the presence of Candida sp. as a possible aggravating factor of oral mucositis in patients with head and neck cancer under antineoplastic treatment. Method: all patients with radio- or chemo-induced oral mucositis from the Cancer Hospital of Pernambuco, treated between October 2008 and April 2009, were selected for the study. The prevalence of Candida sp was measured through the cytological analysis of oral mucosa in patients with oral mucositis. The fungal presence was correlated with the mucositis severity. Results: the results showed a positive association between fungal colonization and more several lesions (degrees III and IV of mucositis). Conclusion: The outcomes shown may contribute to a solution for unconventional mucosites, which do not respond to the usual treatment. (author)

  2. Risk Factors for Visual Impairment in an Uninsured Population and the Impact of the Affordable Care Act.

    Science.gov (United States)

    Guo, Weixia; Woodward, Maria A; Heisler, Michele; Blachley, Taylor; Corneail, Leah; Cederna, Jean; Kaplan, Ariane D; Newman Casey, Paula Anne

    2016-01-01

    To assess risk factors for visual impairment in a high-risk population of people: those without medical insurance. Secondarily, we assessed risk factors for remaining uninsured after implementation of the Affordable Care Act (ACA) and evaluated whether the ACA changed demand for local safety net ophthalmology clinic services one year after its implementation. In a retrospective cohort study of patients who attended a community-academic partnership free ophthalmology clinic in Southeastern, Michigan between September 2012 - March 2015, we assessed the prevalence of presenting with visual impairment, the most common causes of presenting with visual impairment and used logistic regression to assess socio-demographic risk factors for visual impairment. We assessed the initial impact of the ACA on clinic utilization. We also analyzed risk factors for remaining uninsured one year after implementation of the ACA private insurance marketplace and Medicaid expansion in the state of Michigan. Among 335 patients, one-fifth (22%) presented with visual impairment; refractive error was the leading cause for presenting with visual impairment. Unemployment was the single significant risk factor for presenting with visual impairment after adjusting for multiple confounding factors (OR = 3.05, 95% CI 1.19-7.87, p=0.01). There was no difference in proportion of visual impairment or type of vision-threatening disease between the insured and uninsured (p=0.26). Seventy six percent of patients remained uninsured one year after ACA implementation. Patients who were white, spoke English as a first language and were US Citizens were more likely to gain insurance coverage through the ACA in our population (p≤ 0.01). There was a non-significant decline in the mean number of patient treated per clinic (52 to 43) before and after ACA implementation (p=0.69). Refractive error was a leading cause for presenting with visual impairment in this vulnerable population, and being unemployed

  3. Las competencias socioemocionales como factor protector ante la sintomatología de ansiedad y depresión en adolescentes

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    Norma Alicia Ruvalcaba Romero

    2013-01-01

    Full Text Available Abstract This research paper shows a descriptive correlational study is to identify the role of the social and emotional competences as a protective factor against anxious and depressive symptomatology in adolescents. Participants were 840 Mexican adolescents that completed the Emotional Quotient Inventory, Youth Version: EQ-I:YV by Bar-On, the Revised Children’s Manifest Anxiety Scale, RCMAS by Reynolds and Richmond, and the Children’s Depression Inventory, CDI by Kovacs. We found a negative relationship between variables. In the same way, it was observed that social and emotional competences had a predictive value of 14% on the anxious symptomatology and 39% on the depressive symptomatology. The results support the importance of developing programs emphasizing socio-emotional skills training to prevent early onset of affective disorders. Resumen El presente artículo de investigación presenta un estudio de tipo descriptivo correlacional que buscó identificar el papel de las competencias socioemocionales como un factor protector ante la sintomatología ansiosa o depresiva en adolescentes. La muestra se compuso de 840 adolescentes mexicanos a los que se les aplicó el Inventario de Coeficiente Emocional de Bar-On (EQ-i: YV, la Escala de Ansiedad Manifiesta en Niños Revisada (RCMAS, de Reynolds y Richmond, así como el Inventario de Depresión Infantil (CDI de Kovacs. Se observó una relación negativa entre las variables, y un valor predictivo de las competencias socioemocionales de un 14% para sintomatología ansiosa y de un 39% para sintomatología depresiva. Estos resultados avalan la importancia de desarrollar programas que, a partir del entrenamiento en competencias socioemocionales, contribuyan a prevenir la aparición temprana de trastornos afectivos.

  4. Transcranial direct current stimulation (tDCS) facilitates overall visual search response times but does not interact with visual search task factors.

    Science.gov (United States)

    Sung, Kyongje; Gordon, Barry

    2018-01-01

    Whether transcranial direct current stimulation (tDCS) affects mental functions, and how any such effects arise from its neural effects, continue to be debated. We investigated whether tDCS applied over the visual cortex (Oz) with a vertex (Cz) reference might affect response times (RTs) in a visual search task. We also examined whether any significant tDCS effects would interact with task factors (target presence, discrimination difficulty, and stimulus brightness) that are known to selectively influence one or the other of the two information processing stages posited by current models of visual search. Based on additive factor logic, we expected that the pattern of interactions involving a significant tDCS effect could help us colocalize the tDCS effect to one (or both) of the processing stages. In Experiment 1 (n = 12), anodal tDCS improved RTs significantly; cathodal tDCS produced a nonsignificant trend toward improvement. However, there were no interactions between the anodal tDCS effect and target presence or discrimination difficulty. In Experiment 2 (n = 18), we manipulated stimulus brightness along with target presence and discrimination difficulty. Anodal and cathodal tDCS both produced significant improvements in RTs. Again, the tDCS effects did not interact with any of the task factors. In Experiment 3 (n = 16), electrodes were placed at Cz and on the upper arm, to test for a possible effect of incidental stimulation of the motor regions under Cz. No effect of tDCS on RTs was found. These findings strengthen the case for tDCS having real effects on cerebral information processing. However, these effects did not clearly arise from either of the two processing stages of the visual search process. We suggest that this is because tDCS has a DIFFUSE, pervasive action across the task-relevant neuroanatomical region(s), not a discrete effect in terms of information processing stages.

  5. Preeclampsia como factor de riesgo independiente para el trastorno por déficit de atención con hiperactividad. Estudio de casos y controles. Bucaramanga, Colombia

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    Yuly Andrea Castellanos-Castellanos

    2014-07-01

    Full Text Available Introducción: El trastorno por déficit de atención e hiperactividad es una condición mental que afecta a niños y adolescentes con prevalencia estimada de 5.3% en la población mundial y en Colombia es de 19-24% en hombres y 10-12% en mujeres. Su etiología es multifactorial, entre ellos se encuentra la hipoxia como factor del medio ambiente uterino; presentándose en entidades como la preeclampsia, donde se ha considerado determinante en el desarrollo del trastorno por déficit de atención e hiperactividad, siendo importante evaluar su asociación. Objetivo: Determinar la asociación entre el diagnóstico trastorno por déficit de atención e hiperactividad y el antecedente perinatal de preeclampsia. Metodología: Estudio de casos y controles retrospectivo de 411 casos de trastorno por déficit de atención e hiperactividad y 404 controles no emparentados sin trastorno ni otros trastornos disruptivos del comportamiento. La evaluación psiquiátrica se hizo entre el 2005–2011, mediante entrevista estructurada que incluyó indagar el antecedente de preeclamsia en el embarazo de cada paciente. Resultados: El antecedente de preeclampsia se presentó en el 3.7% de los pacientes con trastorno por déficit de atención e hiperactividad y en el 5.5% de los controles (OR 0.66, IC95% 0.34 – 1.29; p=0.221. Esta falta de asociación se mantuvo luego de ajustar por género, ser adoptado, haber nacido por cesárea y edad de inicio del trastorno que llevó a consultar al paciente (OR 0.51, IC95% 0.22 – 1.17; p=0.115. Conclusión: El estudio no encontró significancia estadística entre el antecedente de preeclampsia materna y el trastorno por déficit de atención e hiperactividad como factor principalmente asociado en la muestra de pacientes seleccionados.

  6. Personal risk factors for carpal tunnel syndrome in female visual display unit workers.

    Science.gov (United States)

    Riccò, Matteo; Cattani, Silvia; Signorelli, Carlo

    2016-11-18

    Carpal tunnel syndrome (CTS) is the most common nerve entrapment syndrome, which since the beginning of the seventies has been linked to the keyboard and visual display unit (VDU). The objective of this study was to investigate the prevalence and personal factors associated with CTS in female VDU workers in Italy. Participants in this study were female adult subjects, working ≥ 20 h/week (N = 631, mean age 38.14±7.81 years, mean working age 12.9±7.24 years). Signs and symptoms were collected during compulsory occupational medical surveillance. The binary logistic regression was used to estimate adjusted odds ratios for the factors of interest. Diagnosis of CTS was reported in 48 cases (7.6%, 11 of them or 1.7% after a surgical correction) for the incidence of 5.94/1000 person-years. In general, signs and symptoms of CTS were associated with the following demographic factors: previous trauma of upper limb (adjusted odds ratio (ORa) = 8.093, 95% confidence interval (CI): 2.347-27.904), history (> 5 years) of oral contraceptives therapy/hormone replacement therapy (ORa = 3.77, 95% CI: 1.701-8.354) and cervical spine signs/symptoms (ORa = 4.565, 95% CI: 2.281-9.136). The prevalence of CTS was similar to the estimates for the general population of Italy. Among personal risk factors, hormone therapy, previous trauma of the upper limb and signs/symptoms of the cervical spine appeared to be associated with a higher risk of CTS syndrome. Eventually, the results reinforce interpretation of CTS in VDU workers as a work-related musculoskeletal disorder rather than a classical occupational disease. Int J Occup Med Environ Health 2016;29(6):927-936. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.

  7. Personal risk factors for carpal tunnel syndrome in female visual display unit workers

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    Matteo Riccò

    2016-12-01

    Full Text Available Objectives: Carpal tunnel syndrome (CTS is the most common nerve entrapment syndrome, which since the beginning of the seventies has been linked to the keyboard and visual display unit (VDU. The objective of this study was to investigate the prevalence and personal factors associated with CTS in female VDU workers in Italy. Material and Methods: Participants in this study were female adult subjects, working ≥ 20 h/week (N = 631, mean age 38.14±7.81 years, mean working age 12.9±7.24 years. Signs and symptoms were collected during compulsory occupational medical surveillance. The binary logistic regression was used to estimate adjusted odds ratios for the factors of interest. Results: Diagnosis of CTS was reported in 48 cases (7.6%, 11 of them or 1.7% after a surgical correction for the incidence of 5.94/1000 person-years. In general, signs and symptoms of CTS were associated with the following demographic factors: previous trauma of upper limb (adjusted odds ratio (ORa = 8.093, 95% confidence interval (CI: 2.347–27.904, history (> 5 years of oral contraceptives therapy/hormone replacement therapy (ORa = 3.77, 95% CI: 1.701–8.354 and cervical spine signs/symptoms (ORa = 4.565, 95% CI: 2.281–9.136. Conclusions: The prevalence of CTS was similar to the estimates for the general population of Italy. Among personal risk factors, hormone therapy, previous trauma of the upper limb and signs/symptoms of the cervical spine appeared to be associated with a higher risk of CTS syndrome. Eventually, the results reinforce interpretation of CTS in VDU workers as a work-related musculoskeletal disorder rather than a classical occupational disease. Int J Occup Med Environ Health 2016;29(6:927–936

  8. A survey of visually induced symptoms and associated factors in spectators of three dimensional stereoscopic movies

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    Solimini Angelo G

    2012-09-01

    Full Text Available Abstract Background The increasing popularity of commercial movies showing three dimensional (3D computer generated images has raised concern about image safety and possible side effects on population health. This study aims to (1 quantify the occurrence of visually induced symptoms suffered by the spectators during and after viewing a commercial 3D movie and (2 to assess individual and environmental factors associated to those symptoms. Methods A cross-sectional survey was carried out using a paper based, self administered questionnaire. The questionnaire includes individual and movie characteristics and selected visually induced symptoms (tired eyes, double vision, headache, dizziness, nausea and palpitations. Symptoms were queried at 3 different times: during, right after and after 2 hours from the movie. Results We collected 953 questionnaires. In our sample, 539 (60.4% individuals reported 1 or more symptoms during the movie, 392 (43.2% right after and 139 (15.3% at 2 hours from the movie. The most frequently reported symptoms were tired eyes (during the movie by 34.8%, right after by 24.0%, after 2 hours by 5.7% of individuals and headache (during the movie by 13.7%, right after by 16.8%, after 2 hours by 8.3% of individuals. Individual history for frequent headache was associated with tired eyes (OR = 1.34, 95%CI = 1.01-1.79, double vision (OR = 1.96; 95%CI = 1.13-3.41, headache (OR = 2.09; 95%CI = 1.41-3.10 during the movie and of headache after the movie (OR = 1.64; 95%CI = 1.16-2.32. Individual susceptibility to car sickness, dizziness, anxiety level, movie show time, animation 3D movie were also associated to several other symptoms. Conclusions The high occurrence of visually induced symptoms resulting from this survey suggests the need of raising public awareness on possible discomfort that susceptible individuals may suffer during and after the vision of 3D movies.

  9. Relation between visual function index and falls-related factors in patients with age-related cataract

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    Mei-Na Huang

    2016-01-01

    Full Text Available AIM:To investigate the relation between vision function index and falls-related factors in patients with age-related cataract.METHODS:Ninety-six patients with age-related cataract were interviewed using a seven-item visual function questionnaire(VF-7, then classified into poor, moderate, or good visual function group. The differences of the three groups on visual acuity, balance and mobility function, cognition, depressive symptoms, self-reported fear of falling were analyzed. RESULTS:The patients in poor visual function group had older age, tendency to depression, was more afraid of falling, compared with groups with higher score in VF-7, and they had worse visual acuity, performed worse on all balance and mobility tests. CONCLUSION:Poor visual function is related to worse visual acuity, weaker balance and mobility performance in patients with age-related cataract. The VF-7, as a simple and convenient self-reported method, can be used as a falling risk monitoring in patients with age-related cataract.

  10. Outcomes of visual acuity in carbon ion radiotherapy: Analysis of dose-volume histograms and prognostic factors

    International Nuclear Information System (INIS)

    Hasegawa, Azusa; Mizoe, Jun-etsu; Mizota, Atsushi; Tsujii, Hirohiko

    2006-01-01

    Purpose: To analyze the tolerance dose for retention of visual acuity in patients with head-and-neck tumors treated with carbon ion radiotherapy. Methods and Materials: From June 1994 to March 2000, 163 patients with tumors in the head and neck or skull base region were treated with carbon ion radiotherapy. Analysis was performed on 54 optic nerves (ONs) corresponding to 30 patients whose ONs had been included in the irradiated volume. These patients showed no evidence of visual impairment due to other factors and had a follow-up period of >4 years. All patients had been informed of the possibility of visual impairment before treatment. We evaluated the dose-complication probability and the prognostic factors for the retention of visual acuity in carbon ion radiotherapy, using dose-volume histograms and multivariate analysis. Results: The median age of 30 patients (14 men, 16 women) was 57.2 years. Median prescribed total dose was 56.0 gray equivalents (GyE) at 3.0-4.0 GyE per fraction per day (range, 48-64 GyE; 16-18 fractions; 4-6 weeks). Of 54 ONs that were analyzed, 35 had been irradiated with max ]) resulting in no visual loss. Conversely, 11 of the 19 ONs (58%) irradiated with >57 GyE (D max ) suffered a decrease of visual acuity. In all of these cases, the ONs had been involved in the tumor before carbon ion radiotherapy. In the multivariate analysis, a dose of 20% of the volume of the ON (D 2 ) was significantly associated with visual loss. Conclusions: The occurrence of visual loss seems to be correlated with a delivery of >60 GyE to 20% of the volume of the ON

  11. Training complexity is not decisive factor for improving adaptation to visual sensory conflict.

    Science.gov (United States)

    Yang, Yang; Pu, Fang; Li, Shuyu; Li, Yan; Li, Deyu; Fan, Yubo

    2012-01-01

    Ground-based preflight training utilizing unusual visual stimuli is useful for decreasing the susceptibility to space motion sickness (SMS). The effectiveness of the sensorimotor adaptation training is affected by the training tasks, but what kind of task is more effective remains unknown. Whether the complexity is the decisive factor to consider for designing the training and if other factors are more important need to be analyzed. The results from the analysis can help to optimize the preflight training tasks for astronauts. Twenty right-handed subjects were asked to draw the right path of 45° rotated maze before and after 30 min training. Subjects wore an up-down reversing prism spectacle in test and training sessions. Two training tasks were performed: drawing the right path of the horizontal maze (complex task but with different orientation feature) and drawing the L-shape lines (easy task with same orientation feature). The error rate and the executing time were measured during the test. Paired samples t test was used to compare the effects of the two training tasks. After each training, the error rate and the executing time were significantly decreased. However, the training effectiveness of the easy task was better as the test was finished more quickly and accurately. The complexity is not always the decisive factor for designing the adaptation training task, e.g. the orientation feature is more important in this study. In order to accelerate the adaptation and to counter SMS, the task for astronauts preflight adaptation training could be simple activities with the key features.

  12. El cambio de las concepciones docentes como factor de la revolución educativa. The change of the educational conceptions like factor of the educational revolution

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    Pozo Juan Ignacio

    2008-07-01

    Full Text Available El constante desarrollo de la realidad social obliga al cambio de modelos pedagógicos para la enseñanza en las escuelas, que aunque son estructurados por teóricos de la educación, la mayoría de las veces no logran pernear las Instituciones Educativas En esta conferencia, el autor resume sus experiencias y los resultados de una investigación realizada en la Universidad de Autónoma de Madrid en asocio con la Universidad de Comahue, en Argentina, en la que se plantea el modelo constructivista como el gran prototipo a seguir, enfrentándolo con la realidad de la escuela, sus docentes y alumnos. Pozo recuerda que en el modelo constructivista la función de la escuela es brindar a los estudiantes una enseñanza dirigida a formar capacidades de aprendizaje, a ordenar el flujo informativo al que se enfrentan en la vida diaria, y a brindarles varios enfoques teóricos para que sean capaces de dudar de ellos y de entender porque esos saberes son mejores que otros; pero aunque muchos docentes conocen y coinciden con las ideas del modelo, no logran aplicarlas en las aulas porque no superan sus teorías implícitas -aquellas que están guardadas en el subconsciente y que son las que realmente guían el accionar de las personas-. Lo mismo sucede con los estudiantes, quienes pese a exigir un cambio de modelo siguen con fuertes raíces hacia los modelos antiguos, que se refleja en la cultura escolar y en las actividades de enseñanza y aprendizaje. The constant development of the social reality forces at the rate of pedagogic models for the education in the schools, that though they are constructed for theoretical of the education, the majority of the times do not achieve the Educational Institutions strike. In this conference, the author summarizes his experiences and the results of an research realized in the University of Autonomous of Madrid in I associate with Comahues University, in Argentina, In that the model appears constructivista as the great

  13. NATURAL COURSE OF PATIENTS DISCONTINUING TREATMENT FOR AGE-RELATED MACULAR DEGENERATION AND FACTORS ASSOCIATED WITH VISUAL PROGNOSIS.

    Science.gov (United States)

    Kim, Jae Hui; Chang, Young Suk; Kim, Jong Woo

    2017-12-01

    To evaluate the 24-month natural course of visual changes in patients discontinuing treatment despite persistent or recurrent fluid and factors predictive of visual prognosis. This retrospective, observational study included 35 patients (35 eyes) who initially received anti-vascular endothelial growth factor treatment for neovascular age-related macular degeneration (AMD), but discontinued treatment despite persistent or recurrent fluid. The best-corrected visual acuity (BCVA) at treatment discontinuation was determined and compared with the 24-month BCVA, which was then compared between polypoidal choroidal vasculopathy and other neovascular age-related macular degeneration subtypes. Baseline characteristics predictive of visual outcome and the degree of visual change were also analyzed. The mean number of anti-vascular endothelial growth factor injections before treatment discontinuation was 4.0 ± 1.6. The mean logarithm of minimal angle of resolution of BCVA at treatment discontinuation and that at 24 months were 1.02 ± 0.20 (Snellen equivalents = 20/209) and 1.60 ± 0.56 (20/796), respectively (P age-related macular degeneration subtypes (P = 0.803). The type of fluid (intraretinal fluid vs. no intraretinal fluid) was predictive of 24-month BCVA (P = 0.004) and the degree of changes in BCVA (P = 0.043). Marked deterioration in visual acuity was noted in patients discontinuing treatment, regardless of neovascular age-related macular degeneration subtypes. The presence of intraretinal fluid was associated with worse visual prognosis, suggesting that patients with intraretinal fluid should be strongly warned about their poor prognosis before they decide to discontinue treatment.

  14. El acceso al agua como factor de identificación de problemas de desarrollo agrario sostenible en el territorio del Alto Guadiana

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    Ruiz Pulpón, Ángel Raúl

    2008-12-01

    Full Text Available The appropriation of private rights on the use of the water owes to factors of historical and economic type, being delimited and being recognized after the application of the effective legislation at the end of century XXth. The understanding of the social and economic consequences that are derived allows to establishing global frames of reference for the judgment of the environmental problem that considers in territories with problems of sustainable agrarian development, as it has happened with the Guadiana river high basin.

    La apropiación de derechos privados sobre el uso del agua se debe a factores de tipo histórico y económico, siendo delimitados y reconocidos tras la aplicación de la legislación vigente a finales del siglo XX. La comprensión de las consecuencias sociales y económicas que se derivan permite establecer marcos de referencia globales para el enjuiciamiento del problema ambiental que se plantea en territorios con problemas de desarrollo agrario sostenible, tal y como ha ocurrido con la cuenca alta del Guadiana.

  15. Liderazgo y relaciones sociales en el trabajo como factor de riesgo psicosocial: su incidencia sobre gestión humana en las organizaciones

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    Gregorio Calderón Hernández

    2013-01-01

    Full Text Available Este artículo pretende analizar los tópicos liderazgo y relaciones sociales en el trabajo, como factores de riesgo psicosocial, fundamentados en los modelos: demanda control-apoyo social, el modelo de desequilibrio esfuerzo-recompensa y el modelo dinámico de los factores de riesgo. La contrastación empírica se hizo mediante la aplicación de una batería de instrumentos validados por el Ministerio de Protección Social de Colombia a un grupo de 148 jefes y 267 profesionales y técnicos, de 44 empresas localizadas en el Eje Cafetero colombiano. Los resultados permiten identificar un alto índice de riesgo en las dimensiones relaciones con colaboradores y relaciones sociales; no se encontraron diferencias significativas en el índice de riesgo por género y tipo de cargo, pero sí diferencias entre algunos grupos de edad, tiempo de servicio y tipo de contrato.

  16. A 5-year audit of cataract surgery outcomes after posterior capsule rupture and risk factors affecting visual acuity.

    Science.gov (United States)

    Ti, Seng-Ei; Yang, You-Nian; Lang, Stephanie S; Chee, Soon Phaik

    2014-01-01

    To describe the posterior capsule rupture rates and visual outcomes after phacoemulsification, analyze risk factors for poor vision, and compare results of faculty (F) and residents (R). Retrospective audit study. Visual success of all capsule ruptures (2006-2010) was analyzed and compared to uneventful cases. Rupture rates of faculty and residents were compared (χ², P risk factors were identified using multivariate logistic regression analysis. From 2006 to 2010, there were 887 capsule ruptures in 48 377 phacoemulsification cases (rate 1.8%). Uneventful cases had significantly better visual outcomes than capsule ruptures (98.5% vs 93.9%; P .05). Ruptures most frequently occurred during phacoemulsification (59.6%) and irrigation and aspiration (24.8%) stages. Risk factors for poor outcomes included age >65 years, dropped nuclei, and other complications. The overall capsule rupture rate was 1.8%. Although residents had higher rates, visual success matched faculty's, possibly attributable to case mix and close supervision. Associated risk factors for poor vision included age >65 years, dropped nuclei, and postoperative retinal, corneal, and IOL complications. Copyright © 2014 Elsevier Inc. All rights reserved.

  17. STUDIES IN CINE-PSYCHOMETRY II--CONTINUED FACTORING OF AUDIO AND VISUAL COGNITION AND MEMORY. FINAL REPORT.

    Science.gov (United States)

    SEIBERT, WARREN F.; REID, J. CHRISTOPHER

    THREE STUDIES INVESTIGATE AUDITORY AND VISUAL MEMORY ABILITIES AND THEIR POTENTIAL ROLES AS INSTRUCTIONAL AND PERSONNEL PREDICTORS. STUDY I PRESENTS TO 185 COLLEGE FRESHMEN 42 ABILITY TESTS FROM WHICH SEVEN MAJOR ROTATED FACTORS EMERGE--SERIAL MEMORY SPAN, SERIAL INTEGRATION, ASSOCIATIVE MEMORY, ABSTRACTS FROM SOCIAL INTERACTION SITUATIONS, VERBAL…

  18. Different aspects of visual impairment as risk factors for falls and fractures in older men and women

    NARCIS (Netherlands)

    de Boer, Michiel R; Pluijm, Saskia M F; Lips, Paul; Moll, Annette C; Völker-Dieben, Hennie J; Deeg, Dorly J H; van Rens, Ger H M B

    UNLABELLED: Visual impairment has been implicated as a risk factor for falling and fractures, but results of previous studies have been inconsistent. The relationship between several aspects of vision and falling/fractures were examined in a prospective cohort study in 1,509 older men and women. The

  19. Incidence, risk factors, and clinical characteristics of unexplained visual loss after intraocular silicone oil for macula-on retinal detachment

    NARCIS (Netherlands)

    Scheerlinck, Laura M.; Schellekens, Peter A.; Liem, Albert T.; Steijns, Daan; van Leeuwen, R

    2016-01-01

    Purpose: To investigate the incidence, risk factors, and clinical characteristics of unexplained visual loss after macula-on rhegmatogenous retinal detachment (RRD). Methods: Retrospective cohort of patients with primary macula-on rhegmatogenous retinal detachment treated by vitrectomy with gas or

  20. Analysis of Factors Related to Visual Inspection with Acetic Acid Examination on Child Bearing Women

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    Esti Yunitasari

    2017-07-01

    Full Text Available Not only the health promotion about Visual Inspection with Acetic Acid (VIA examination and servical cancer but also free for VIA examination have been held in Polindes Tanjunganom, but the scope of VIA examination is still in low grade. Health Belief Model (HBM theory is used to evaluate and explain the differences of individual perception towards preventive behaviors. This study was aimed to analyze the factors correlating with VIA examination in women by HBM. Design used in this study was cross sectional. The population was all child bearing women in Puskesmas Tanjunganom region. Total sample was 50 respondents, taken according to simple random technique. The independent variabels were perceived susceptibility, perceived seriousness, perceived benefits, perceived barriers, and cues to action. The dependent variabel was VIA examination. Data were collected by using structured questionnaire and analyzed by using chi square test with level of significance of ≤ 0,05. Results showed that perceived susceptibility had correlation with VIA examination (p=0,026, perceived seriousness had correlation with VIA examination (p=0,004, perceived benefits had correlation with VIA examination (p=0,016, perceived barriers had correlation with VIA examination (p=0,016, and cues to action (p=0,000 had correlation with VIA examination. It can be concluded that HBM has correlation with VIA examination and cues to action has the strongest variabel related to VIA examination. Further studies should involve larger respondents and better measurement tools to obtain more accurate results.

  1. La agresividad en la infancia: el estilo de crianza parental como factor relacionado Aggression in childhood: Parenting style as related factor.

    Directory of Open Access Journals (Sweden)

    Antonio F. Raya

    2009-10-01

    Full Text Available

    El presente estudio se propone analizar la posible relación existente entre la agresividad en los niños medida por sus padres a través del BASC (Sistema de Evaluación de la Conducta de Niños y Adolescentes y el estilo de crianza según el PCRI (Cuestionario de Crianza Parental compuesto por siete factores: apoyo, satisfacción con la crianza, compromiso, comunicación, disciplina, autonomía y distribución de rol, en una muestra de 338 niños (182 niños y 156 niñas entre 3 y 14 años. Los resultados muestran la existencia de una relación significativa entre la agresividad en los niños y la mayoría de los factores del estilo de crianza parental. Además se establece un modelo capaz de predecir el 27% de la varianza con respecto a la agresividad en los niños, compuesto por la disciplina de ambos progenitores, el compromiso y la satisfacción con la crianza de los padres y la autonomía de las madres. Finalmente se discute la utilidad de estos resultados para el planteamiento de estrategias de intervención en el ámbito familiar basadas en el estilo disciplinario.


    Palabras clave: Agresividad, padres, estilo parental, disciplina.
    Aggression

    This current study proposes to analyse the possible relationship which exists between aggression in children reported by parents through the BASC (Behaviour Assessment System for Children, and the parenting style according to the PCRI (Parent-Child Relationship Inventory composed of seven factors such as support, satisfaction with parenting, involvement, communication, limit setting, autonomy granting, and role orientation, in a sample of 338 children (182 male & 156 female between 3 and 14 years old. The results show the existence of a significant relationship between aggression in children and the majority of the parenting factors. Furthermore, a model is established which is able to predict 27% of the variance with respect to aggression in children, made

  2. Mobility as a territorial key factor in the emission of greenhouse gases; La movilidad como factor territorial dominante en la emision de gases de efecto invernadero

    Energy Technology Data Exchange (ETDEWEB)

    Crespo Garcia, L.; Montane Lopez, M. M.; Garcia Cortes, A.; Jimenez Arroyo, F.

    2011-07-01

    Transport and energy generation are the two dominant sectors in the overall balance of energy consumption, and thus of greenhouse gases emissions. Placement of energy generation plants responds to strategic reasons relate to energy supply in the Spanish territory, while transport is an economic activity tightly related to the productive structure and territorial characteristics: density of populations, geographic situation, efficient space organization, etc. The analysis of these factors enables to prioritize different strategies according the their energetic efficiency in order to pursue an economy less dependent of fossil fuels, focused in activities of higher added value and that keeps in mind limits and strengths of Spanish reality. (Author) 9 refs.

  3. Geographical location as critical factor in design and planning for international projects; La localizacion geografica como factor critico en el diseno y planificacion de proyectos internacionales

    Energy Technology Data Exchange (ETDEWEB)

    Matranga, Mariana; Rawson, Carola; Pandolfi, Juan Martin; Guamantica, Diego; Eberle, Juan Manuel; Mastandrea, Martin [TECNA S.A., Buenos Aires (Argentina)

    2004-07-01

    The success of an international project is closely linked to the knowledge of the scene where the steps of construction, installation and operation will take place. In that sense, early consideration of geographic factors, socio-economic and environmental impact has proven to be determinant for the successful development of the phases of design, construction, transportation, assembly and operation. In the case of the Planta de Tratamiento de Gas Sabalo, taking into account the above factors not only enabled the efficient development of the various phases of the project, but also complete stages of assembly and start-up in twenty weeks. The Planta de Tratamiento de Gas Sabalo is located in the Chaco, region in the Bolivian jungle, and has a capacity of 13.4 MMSCMD gas specification, which makes the plant increased capacity in Bolivia and one of the highest capacity in South America. Companies in Brazil, Bolivia, Ecuador and Argentina were involved in the project, the latter in charge of its design, construction and management. Based on the experience of the project Sabalo, this article presents a series of lines especially applicable to international projects.

  4. Embarazo adolescente como factor de riesgo para complicaciones obstétricas y perinatales en un hospital de Lima, Perú

    Directory of Open Access Journals (Sweden)

    Javier A. Okumura

    2014-12-01

    Full Text Available Objetivos: analizar el riesgo de complicaciones obstétricas y perinatales en adolescentes embarazadas en un hospital de Lima, Perú. Métodos: estudio de cohorte retrospectiva de 67.693 gestantes atendidas en el período 2000-2010. Se evaluó complicaciones obstétricas y perinatales. Las adolescentes se clasificaron en tardías (15-19 años y tempranas (< 15 años y se compararon con las adultas (20-35 años. Se calculó OR ajustados por educación, estado civil, control prenatal, gestaciones previas, paridad e IMC pregestacional. Resultados: se encontró mayor riesgo de cesárea (OR=1,28; IC95%=1,07-1,53 e infección puerperal (OR=1,72; IC95%=1,17-2,53 en las adolescentes menores de 15 años, así como mayor riesgo (OR=1,34; IC95%=1,29-1,40de episiotomía en las adolescentes tardías. Asimismo, se identificó un menor riesgo del embarazo adolescente para preeclampsia (OR=0,90; IC95%=0,85-0,97, hemorragia de la 2da mitad del embarazo (OR=0,80; IC95%=0,71-0,92, ruptura prematura de membranas (OR=0,83; IC95%=0,79-0,87, amenaza de parto pretérmino (OR=0,87; IC95%=0,80-0,94 y desgarro vaginal (OR= 0,86; IC95%=0,79-0,93. Conclusión: el embarazo se comporta como factor de riesgo para ciertas complicaciones obstétricas en la población adolescente, especialmente en las adolescentes tempranas. Existen además otros factores, que sumados a la edad materna, constituyen la necesidad de formar equipos multidis-ciplinarios para reducir complicaciones obstétricas en esta población.

  5. Síntomas depresivos como factor de riesgo de dependencia en adultos mayores Depressive symptoms as a risk factor for dependence in elderly people

    Directory of Open Access Journals (Sweden)

    José Alberto Ávila-Funes

    2007-10-01

    Full Text Available OBJETIVO: Determinar la relación entre síntomas depresivos y dependencia funcional. MATERIAL Y MÉTODOS: Estudio longitudinal con 1 880 adultos mayores evaluados en 2001 y 2003. Se determinaron los síntomas depresivos con una versión modificada de la Escala de Depresión del Centro de Estudios Epidemiológicos y la dependencia con las escalas de Lawton y Brody, y Katz. La dependencia implicó la asistencia y ayuda para realizar alguna de las actividades interrogadas. Los análisis multifactoriales probaron el nexo entre síntomas depresivos y desarrollo de dependencia. RESULTADOS: En 2001, 37.9% mostró síntomas depresivos. En 2003, 6.1 y 12.7% desarrollaron dependencia para al menos una de las actividades básicas (ABVD e instrumentales de la vida diaria (AIVD, respectivamente. En el análisis multivariado, los síntomas depresivos fueron factor de riesgo sólo para dependencia en las AIVD. CONCLUSIONES: Los síntomas depresivos favorecen el desarrollo de dependencia funcional. Es necesario su reconocimiento sistemático durante la evaluación clínica del adulto mayor.OBJECTIVE: To determine the relationship between depressive symptoms and dependence in activities of daily living. MATERIAL AND METHODS: Participants, aged 70 to 104 (n= 1 880, were evaluated twice (2001 and 2003. Depressive symptoms were established by a modified version of Center for Epidemiologic Studies Depression scale, whereas functional dependence was assessed with Lawton & Brody and Katz scales. Dependence implies the attendance and assistance of another person to accomplish the activity. Multivariate regression analyses were used to determine the effect of depressive symptoms on incident dependence. RESULTS: At baseline, 37.9% had depressive symptoms. After two years, 6.1 and 12.7% developed functional dependence for one or more ADL and IADL, respectively. Multivariate analyses showed that depressive symptoms were a risk factor to the development of functional

  6. Factores de riesgo asociados al sexting como umbral de diversas formas de victimización. Estudio de factores correlacionados con el sexting en una muestra universitaria

    Directory of Open Access Journals (Sweden)

    Jose R. Agustina

    2016-07-01

    Full Text Available

    En los últimos años, la irrupción del fenómeno del sexting ha generado una significativa preocupación mediática y social. La práctica del sexting se ha revelado problemática, en tanto que puede producir graves consecuencias psicológicas y jurídicas, especialmente en adolescentes. La aparición de tales consecuencias ha puesto de manifiesto la urgente necesidad de desarrollar estrategias de prevención adecuadas. Más aún, mediante el envío de mensajes, imágenes o vídeos de sexting, menores (y también adultos cruzan inadvertidamente un umbral de riesgo que los expone sin vuelta atrás a diversas formas de victimización (chantajes, venganzas o simples indiscreciones altamente perjudiciales. Asimismo, puede suponer el inicio de delitos sexuales iniciados a través de las TIC (Wolak et al., 2004.

     

    En un primer momento, la mayoría de las investigaciones realizadas se centraron en analizar la prevalencia del fenómeno y los motivos que decían tener los encuestados para obrar de este modo. A pesar de las diferencias en los diversos estudios —en función del tipo de muestra y de los parámetros para definir las conductas objeto de cuantificación—, las investigaciones realizadas apuntan sin duda hacia la presencia global de un fenómeno similar. Sin embargo, la investigación apenas ha iniciado la exploración de posibles factores asociados al sexting. El presente estudio pretende —más allá de medir la prevalencia del fenómeno o describir los motivos aparentes de los encuestados— contrastar algunas hipótesis sobre factores asociados al sexting basándose en una muestra de 149 estudiantes universitarios en Barcelona (España. Los resultados obtenidos muestran una tasa relativamente alta de comportamientos de sexting en jóvenes-adultos y sugieren una relación positiva significativa con los siguientes factores: bajos estándares de

  7. El signo como emblema

    Directory of Open Access Journals (Sweden)

    Sáez, Carlos

    2003-06-01

    Full Text Available The aim of this article is to study the signs and symbols that appear in the hispanic medieval documents and manuscripts. These signs and symbols have usually been considered simply as mere elements to validate the charters. However, these alements were useful as a mean of visual communication between the high classes, able to generate charters, and the rest of medieval society—the majority illiterate— who received those charters. Because of their inability of understand an alphabetical code, they needed the graphic help to comprehend the message. Besides this, the article deals with non diplomatic signs and their function.

    Este artículo se centra en los signos o símbolos presentes en los documentos y manuscritos medievales hispanos, que habitualmente han sido tratados como meros elementos de validación de los diplomas. Pero estos elementos servían también de nexos de comunicación visual entre las clases poderosas, capaces de producir escritos, y los demás miembros de la sociedad medieval, receptores y destinatarios de tales escritos, en su mayoría analfabetos. Precisamente por esta razón, su incapacidad de descifrar un código alfabético, necesitan de auxilio gráfico para acercarse a la comprensión del mensaje. Asimismo, tratamos de los signos no diplomáticos y de su función.

  8. Factores visuales de localización de los monumentos megalíticos de la Cuenca del Sever (Portugal- España

    Directory of Open Access Journals (Sweden)

    López-Romero González de la Aleja, Elias

    2007-12-01

    Full Text Available Not Available

    Dentro de los estudios de análisis del territorio el comportamiento visual de los yacimientos arqueológicos juega un papel fundamental para la comprensión de las estrategias de ocupación del espacio. En el caso que ahora nos ocupa, el objeto de estudio viene dado por las diferentes manifestaciones de la monumentalidad neolítica de la cuenca del Sever (Portugal-España. La consideración de distintos factores que entran en juego en la visibilidad nos permite valorar el papel jugado por la topografía, las estructuras arquitectónicas y las distintas relaciones entre éstas; la importancia de la variabilidad microtopográfica como factor de limitación a la visibilidad, o las particularidades de localización respecto al entorno inmediato de los monumentos son algunos de los puntos a destacar dentro de la cuenca.

  9. Human Factors in Streaming Data Analysis: Challenges and Opportunities for Information Visualization: Human Factors in Streaming Data Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Dasgupta, Aritra [Pacific Northwest National Laboratory, Richland Washington USA; Arendt, Dustin L. [Pacific Northwest National Laboratory, Richland Washington USA; Franklin, Lyndsey R. [Pacific Northwest National Laboratory, Richland Washington USA; Wong, Pak Chung [Pacific Northwest National Laboratory, Richland Washington USA; Cook, Kristin A. [Pacific Northwest National Laboratory, Richland Washington USA

    2017-09-01

    Real-world systems change continuously and across domains like traffic monitoring, cyber security, etc., such changes occur within short time scales. This leads to a streaming data problem and produces unique challenges for the human in the loop, as analysts have to ingest and make sense of dynamic patterns in real time. In this paper, our goal is to study how the state-of-the-art in streaming data visualization handles these challenges and reflect on the gaps and opportunities. To this end, we have three contributions: i) problem characterization for identifying domain-specific goals and challenges for handling streaming data, ii) a survey and analysis of the state-of-the-art in streaming data visualization research with a focus on the visualization design space, and iii) reflections on the perceptually motivated design challenges and potential research directions for addressing them.

  10. Vein visualization: patient characteristic factors and efficacy of a new infrared vein finder technology.

    Science.gov (United States)

    Chiao, F B; Resta-Flarer, F; Lesser, J; Ng, J; Ganz, A; Pino-Luey, D; Bennett, H; Perkins, C; Witek, B

    2013-06-01

    We investigated the patient characteristic factors that correlate with identification of i.v. cannulation sites with normal eyesight. We evaluated a new infrared vein finding (VF) technology device in identifying i.v. cannulation sites. Each subject underwent two observations: one using the conventional method (CM) of normal, unassisted eyesight and the other with the infrared VF device, VueTek's Veinsite™ (VF). A power analysis for moderate effect size (β=0.95) required 54 samples for within-subject differences. Patient characteristic profiles were obtained from 384 subjects (768 observations). Our sample population exhibited an overall average of 5.8 [95% confidence interval (CI) 5.4-6.2] veins using CM. As a whole, CM vein visualization were less effective among obese [4.5 (95% CI 3.8-5.3)], African-American [4.6 (95% CI 3.6-5.5 veins)], and Asian [5.1 (95% CI 4.1-6.0)] subjects. Next, the VF technology identified an average of 9.1 (95% CI 8.6-9.5) possible cannulation sites compared with CM [average of 5.8 (95% CI 5.4-6.2)]. Seventy-six obese subjects had an average of 4.5 (95% CI 3.8-5.3) and 8.2 (95% CI 7.4-9.1) veins viewable by CM and VF, respectively. In dark skin subjects, 9.1 (95% CI 8.3-9.9) veins were visible by VF compared with 5.4 (95% CI 4.8-6.0) with CM. African-American or Asian ethnicity, and obesity were associated with decreased vein visibility. The visibility of veins eligible for cannulation increased for all subgroups using a new infrared device.

  11. Promover en los adolescentes la identificación de sus valores como factores que les protegen de las adicciones: un modelo vivencial centrado en el estudiante

    Directory of Open Access Journals (Sweden)

    María del Pilar GONZÁLEZ FLORES

    2009-05-01

    Full Text Available RESUMEN: En el presente trabajo mostramos una propuesta de intervención surgida de un estudio amplio realizado en la ciudad de Xalapa, Veracruz, México con una muestra representativa de adolescentes no consumidores de sustancias adictivas. Esta propuesta pretende ser una aportación para la identificación y el fortalecimiento de los valores como factor de protección a pesar de la disponibilidad y facilidad de acceso a las drogas en el medio. Diseñamos un programa integral que ayude a los niños y adolescentes no consumidores a mantenerse sin hacer uso de sustancias adictivas, el cual puede ser implementado en las escuelas de educación básica y media. Comprende la fundamentación teórica; destinatarios; objetivos, habilidades, procesos y actitudes a promover; metodología; evaluación; y programa desglosado.ABSTRACT: In this paper we present an intervention offer emerged from a wide study carried out in the city of Xalapa, Veracruz, Mexico with a representative sample of non-consumer of addictive substances teenagers. This proposal is intended to be a contribution for the identification and strengthening of values as a protective factor, despite the availability and easy access to drugs in the environment. We designed a comprehensive program that will help non-consumers children and adolescents to maintain themselves without making any use of addictive substances, which could be implemented in basic and media education schools. It includes the fundamental theory; recipients; objectives, abilities, processes and attitudes to promote; methodology; evaluation; and program breakdown.

  12. La enfermedad periodontal como factor de riesgo de parto pretérmino y de bajo peso al nacer en el Hospital Nacional Cayetano Heredia 2002-2003.

    Directory of Open Access Journals (Sweden)

    Christian Alberto Lizarraga Marroquin

    2005-07-01

    Full Text Available Objetivo: Evaluar la relación entre parto pretérmino (PP y de bajo peso (BP al nacer (PPBP y la enfermedad periodontal (EP materna. Materiales y Métodos: Estudio tipo casos y controles de 156 madres, 53 casos (madres de bebés con PPBP y 103 controles (bebés de madres nacidos con >37 semanas y más de 2 500g. Se interrogó a las madres y se revisó las historias clínicas, se registraron datos como: grado de instrucción, estado civil, hábitos de fumar, alcohol, drogas y otros factores de riesgo conocidos. Un solo examinador calibrado registró los indicadores periodontales: profundidad al sondaje, nivel de inserción clínica, sangrado al sondaje y presencia de placa. El análisis se hizo con técnicas de estratificación o regresión logística. Resultados: Los niños pretérminos con y sin bajo peso y a término con bajo peso tienen poco más del doble de probabilidad de tener madres con pérdida de nivel de inserción clínica OR 2,14 (IC 95% 1,24-3,68. Hay asociación de PPBP con la pérdida del nivel de inserción clínica, controlando por peso materno, número de controles prenatales y antecedentes de hijos con BP al nacer. Conclusión: La enfermedad periodontal es un factor de riesgo independiente y potencial de PPBP (Rev Med Hered 2005;16:172-177.

  13. Historia de obesidad como factor asociado al cáncer de mama en pacientes de un hospital público del Perú

    Directory of Open Access Journals (Sweden)

    José Rojas-Camayo

    2009-07-01

    Full Text Available Realizamos un estudio de casos y controles, en 123 pacientes con diagnóstico de cáncer mamario (casos y 208 pacientes sanas (controles. En la medición se consideró el índice de masa corporal (IMC antiguo (peso promedio de la vida adulta de la persona e IMC actual (peso cuantificado al momento de efectuar la investigación y otros factores de riesgo conocidos. Los IMC antiguos mostraron un riesgo incrementado tanto en mujeres en la premenopausia: sobrepeso OR: 7,29 (IC95%: 1,75 - 30,38 y obesidad OR: 23,43 (IC95%: 2,4 - 229.7; como en mujeres posmenopáusicas: obesidad OR: 3,33 (IC95%: 1,54 - 7,19 y obesidad OR: 6,04 (IC95%: 1,78 - 20,50. Por otro lado, al evaluar el IMC actual, se encontró asociación en las premenopáusicas donde el sobrepeso es un factor protector OR: 0,23 (IC95%: 0,05 - 0,99 y la obesidad no muestra asociación OR: 0,37 (IC95%: 0,08 - 1,8, asimismo, en las posmenopáusicas no se evidenció asociación con el sobrepeso OR: 0,79 (IC95%:0,35 - 1,85 ni con la obesidad OR: 1,19 (IC95%: 0,42 - 3,38. Se concluye que la historia de obesidad está asociada con un incremento de riesgo de cáncer mamario tanto en mujeres premenopáusicas y posmenopáusicas.

  14. School as a "protective factor" against drugs: perceptions of adolescents and teachers La escuela como "factor protector" para las drogas: una visión de adolescentes y maestros A escola como "fator de proteção" para drogas: uma visão dos adolescentes e professores

    Directory of Open Access Journals (Sweden)

    María del Carmen García de Jesús

    2008-08-01

    Full Text Available This study aims to discover and describe protective factors regarding the use of drugs, according to teachers and students, aged 14 to 15 years, from a Public Secondary School in Santiago de Querétaro, Mexico. This is a descriptive and exploratory study. Data collection was carried out through semi-structure interview and non-participative observation with ten students and five teachers. Three themes resulted from data analysis: school and school's environment: the school does not provide a healthy environment; use of drugs: perceived by both the students and teachers in the institution itself; prevention programs: there are health promotion and prevention programs available at the school. According to the students' and teachers' perceptions, the school represents a risk factor.El presente trabajo tuvo como objetivo conocer y describir los factores protectores en relación con el consumo de drogas, que son considerados por los profesores y alumnos entre 14 y 15 años de edad, de una escuela pública de la ciudad de Santiago de Querétaro, México. Este estudio descriptivo y exploratorio utilizó entrevistas semi-estructuradas y observación no participativa, las cuales fueron aplicadas a 10 alumnos y 5 profesores. Del análisis de los datos surgen tres temáticas: escuela y ambiente escolar: la escuela no favorece un ambiente escolar saludable; consumo de drogas: se observa que tanto los alumnos y maestros consumen drogas en la institución; programas de prevención: la escuela tiene programas de prevención y promoción a la salud, pero no alcanzan a todos los alumnos. Los resultados refieren que la escuela es un factor de riesgo según la visión de profesores y alumnos.O objetivo deste trabalho foi conhecer e descrever os fatores de proteção em relação ao consumo de drogas, considerado por professores e adolescentes, entre 14 e 15 anos de idade, de uma Escola Pública Secundária na cidade de Santiago de Querétaro, México. Este estudo

  15. As condições de trabalho como fator desencadeador do uso de substâncias psicoativas pelos trabalhadores de enfermagem Las condiciones de trabajo como factor desencadenante del uso de sustancias psicoactivas por los trabajadores de enfermería The work conditions as unleash factor of the psychoactive substance use by the workers of nursing

    Directory of Open Access Journals (Sweden)

    Elizabeth Rose Costa Martins

    2007-12-01

    Full Text Available O estudo teve como objeto o uso de substâncias psicoativas pelos trabalhadores de enfermagem e sua relação com o trabalho. O objetivo foi analisar as condições de trabalho como fator desencadeador do uso de drogas pelo trabalhador de enfermagem. O referencial teórico estruturou-se a partir do conceito de drogas e modelos explicativos da drogodependência, apoiados nas concepções de Dejours (1999 e Laurell & Noriega (1989. Estudo descritivo de abordagem qualitativa com 40 sujeitos trabalhadores de enfermagem de clínica médica de um hospital universitário no Município do Rio de Janeiro, realizado em 2005 e 2006. Como instrumento de coleta de dados utilizou-se a entrevista semi-estruturada. Os resultados mostraram que a utilização de substâncias psicoativas pelos profissionais no local de trabalho pode estar relacionada com as condições de sobrecarga de trabalho e com a facilidade de acesso e que tais substâncias comprometem a sua saúde e o desenvolvimento de suas atividades laborais.El estudio tiene como objeto el uso de substancia psicoactivas por los trabajadores de enfermería y su relación con el trabajo. El objetivo fue analizar las condiciones de trabajo como factor desencadenante al uso de drogas por el trabajador de enfermeria. El referencial teórico se estructuró a partir del concepto de drogas y modelos explicativos de la drogodependencia, apoyado en las concepciones de Dejours (1999 y Laurell y Noriega (1989. Estudio descriptivo y enfoque cualitativo con 40 sujetos trabajadores de enfermeria, de clínica médica de un hospital universitário del Municipio de Rio de Janeiro- Brasil, realizado en 2005 y 2006. Como instrumento de recolección de datos, la entrevista semiestructurada. Los resultados revelan que la utilización de substancias psicoactivas, por los profesionales, en el local de trabajo, puede estar relacionada con las condiciones y carga excesiva de trabajo, con la facilidad de acesso y con las

  16. The T?lz Temporal Topography Study: Mapping the visual field across the life span. Part II: Cognitive factors shaping visual field maps

    OpenAIRE

    Poggel, Dorothe A.; Treutwein, Bernhard; Calmanti, Claudia; Strasburger, Hans

    2012-01-01

    Part I described the topography of visual performance over the life span. Performance decline was explained only partly by deterioration of the optical apparatus. Part II therefore examines the influence of higher visual and cognitive functions. Visual field maps for 95 healthy observers of static perimetry, double-pulse resolution (DPR), reaction times, and contrast thresholds, were correlated with measures of visual attention (alertness, divided attention, spatial cueing), visual search, an...

  17. La educación como factor disuasorio en la reincidencia de la conducta delictiva en menores/The education as an inhibitory factor of minor’s criminal behavior

    Directory of Open Access Journals (Sweden)

    José Manuel Rojas Cervantes

    2012-08-01

    Full Text Available La violencia en nuestro país, presenta una tendencia definida de crecimiento, abarcando cada vez más sectores de la población y afectando la percepción que tenemos los mexicanos de nuestra dinámica social. Los menores se involucran en conductas antisociales y comportamientos delictivos con una frecuencia significativamente más alta al paso de los años. Ante este escenario, el presente artículo documenta una intervención realizada en Comunidades para Adolescentes del DF (antes tutelar para menores, que fundamenta una reflexión documental sobre cómo influye como la educación formal y el proyecto de vida de 22 miembros de esta comunidad como factor que disuada la reincidencia de este tipo de comportamientos. Encontrando que si existe influencia significativa en la relación de variables en la parte experimental, y sugiriendo alternativas de tratamiento penitenciario ambulatorio para poder solventar las carencias del sistema penitenciario en general.

  18. EL PRINCIPIO DE VARIABILIDAD COMO FACTOR DETERMINANTE EN LA TÁCTICA INDIVIDUAL DEL SAQUE EN VOLEIBOL MASCULINO DE NIVEL INTERNACIONAL

    Directory of Open Access Journals (Sweden)

    A. Oña

    2010-09-01

    Full Text Available

     

    RESUMEN

    La investigación en el voleibol masculino de alto nivel en los últimos años otorga al saque una gran importancia en la evolución de este deporte. La técnica de saque empleada se revela como un factor decisivo, sin embargo no conocemos si el rendimiento de esta acción se mantiene de manera uniforme o varía conforme transcurre el encuentro. De este modo el objetivo del presente estudio es conocer la evolución del rendimiento en el transcurso de la competición, diferenciando las mediciones por sets.
    Se tomó como población objeto de estudio a los jugadores de los Juegos Olímpicos de Atlanta en 1996, último acontecimiento de la máxima relevancia en el voleibol internacional. Un total de doce equipos nacionales masculinos, confrontados en 42 encuentros, distribuidos en 149 sets. Para seleccionar la muestra se recurrió a 33 sets de la competición masculina, de entre 14 encuentros, de los que se registraron 2030 casos de cambio de saque.
    Se encontró que la variable set influye, de manera altamente significativa, en el rendimiento de recepción, lo que nos sugiere determinadas exigencias en el planteamiento estratégico del saque.
    PALABRAS CLAVE: voleibol, saque, recepción, alto rendimiento, variabilidad.

     

    ABSTRACT

    The research in male volleyball of high level in the last years grants to serve a great importance in the evolution of this sport. The technique of serving employee is revealed as a decisive factor, however we don’t know if the performance of this action stays in an uniform way or it varies as the encounter lapses. In this way the objective of the present study is to know the evolution of the performance in the course of the competition

  19. Is MTHFR polymorphism a risk factor for Alzheimer's disease like APOE? Polimorfismo da MTHFR é um fator de risco para demência de Alzheimer como APOE?

    Directory of Open Access Journals (Sweden)

    Liana Lisboa Fernandez

    2005-03-01

    Full Text Available BACKGROUND: The role of methylenetetrahydrofolate reductase (MTHFR gene polymorphisms as risk factors for the occurence of Alzheimer's disease (AD is still controversial: OBJECTIVE: To verify the association between MTHFR and apolipoprotein E (APOE polymorphisms and Alzheimer's disease. METHOD: This work was conducted as a case-control study. Cases included thirty patients with probable AD. Controls were constituted by 29 individuals without dementia according to neuropsychological tests paired to age, sex, race and educational level. DNA was isolated from peripheral leukocytes of anticoagulated venous blood. Genotyping of APOE and MTHFR were performed by DNA amplification and digestion. The frequences of APOE and MTHFR genotypes were submitted by chi-square test corrected by Fisher test; the APOE genotypes, to chi-square linear tendency test and the frequences of MTHFR mutant and AD, by stratificated anlysis adjust by Mantel-Haenszel method. RESULTS: There was significant difference about APOE4 and APOE2 in the groups. (p=0.002 The odds ratio increased exponentially with the increased number of E4 allele (chi2 linear tendency test. No significant difference was detected on MTHFR genotypes in both case and control groups. CONCLUSION: The APOE4 is a risk factor and demonstrated a dose-depenent effect while APOE2 allele conferred a protection to AD. The MTHFR mutation had no correlation with AD.INTRODUÇÃO: O papel do polimorfismo do gene da metilenotetrahidrofolato redutase (MTHFR como um fator de risco para demência de Alzheimer (DA é controverso ainda. OBJETIVO: Verificar a associação entre os polimorfismos da MTHFR e apolipoproteína E (APOE e DA. MÉTODO: O trabalho foi conduzido como um estudo caso-controle. Trinta pacientes com DA provável foram incluídos no grupo caso. Vinte e nove indivíduos sem demência comprovadas por testes neuropsicológicos, emparelhados pela idade, sexo, cor e nível educacional constituíram o grupo

  20. Art Therapy: The Visual Spatial Factor and the Hippocampus. 2nd Revision

    Science.gov (United States)

    Del Giacco, Maureen

    2010-01-01

    In this writing related to neuro-plasticity, we are shown that changes in the brain can occur with repeated use of sensory stimuli, with both visual and motor interventions. Keeping these important scientific contributions in mind, I will briefly summarize why the choice of the arts-based DAT method of psychotherapy over traditional verbally based…

  1. Hábitos alimentarios, actividad física y binomio ansiedad/depresión como factores de riesgo asociados con el desarrollo de obesidad en población militar

    OpenAIRE

    M.A. Vazquez Guzman

    2014-01-01

    Antecedentes y objetivos: El sobrepeso y la obesidad son reconocidos como uno de los retos de salud pública del mundo. El objetivo fue determinar si los hábitos alimentarios, actividad física, y ansiedad y depresión, son factores de riesgo asociados con el desarrollo de obesidad en población militar mexicana. Material y métodos: Se realizó un estudio observacional, analítico, tipo casos y controles, en el que se determinó la prevalencia de sobrepeso-obesidad, definida como sujetos con un IMC>...

  2. Combined factors effect of menstrual cycle and background noise on visual inspection task performance: a simulation-based task.

    Science.gov (United States)

    Wijayanto, Titis; Tochihara, Yutaka; Wijaya, Andi R; Hermawati, Setia

    2009-11-01

    It is well known that women are physiologically and psychologically influenced by the menstrual cycle. In addition, the presence of background noise may affect task performance. So far, it has proven difficult to describe how the menstrual cycle and background noise affect task performance; some researchers have found an increment of performance during menstruation or during the presence of noise, others found performance deterioration, while other still have reported no dominant effect either of the menstrual cycle in performance or of the presence of noise. However, no study to date has investigated the combinational effect between the menstrual cycle and the presence of background noise in task performance. Therefore, the purpose of this study was to examine the combined factor effect of menstrual cycle and background noise on visual inspection task performance indices by Signal Detection Theory (SDT) metrics: sensitivity index (d') and response criteria index (beta). For this purpose, ten healthy female students (21.5+/-1.08 years) with a regular menstrual cycle participated in this study. A VDT-based visual inspection task was used for the experiment in 3x2 factorial designs. Two factors, menstrual phase, pre-menstruation (PMS), menstruation (M), and post-menstruation (PM) and background noise, with 80 dB(A) background noise and without noise, were analyzed as the main factors in this study. The results concluded that the sensitivity index (d') of SDT was affected in all the menstrual cycle conditions (pbackground noise (pbackground noise was found in this study. On the other hand, no significant effect was observed in the subject's tendency in visual inspection, shown by beta along the menstrual cycle and the presence of background noise. According to the response criteria for each individual subject, the presence of noise affected the tendency of some subjects in detecting the object and making decision during the visual inspection task.

  3. Factors associated with participation on the competitive labour market of people with visual impairments in The Netherlands.

    Science.gov (United States)

    Goertz, Yvonne H H; Houkes, Inge; Nijhuis, Frans J N; Bosma, Hans

    2017-01-01

    Worldwide, the employment rate of people with visual impairments (PVIs) is lower than that of the general working-age population. To improve the employment rate of this group, there is a need for knowledge about differences in modifiable factors between working and non-working PVIs. To identify modifiable factors associated with participation on the competitive labour market of PVIs. Based on the findings, we aim to develop an individual assessment instrument for determining the odds of labour market success of PVIs. Data were collected among 299 PVIs by means of a cross-sectional telephone survey based on existing (validated) and self-developed scales and items. Logistic regression analysis was used to find the strongest predictors of the dichotomous outcome of 'having paid work on the competitive labour market' (yes/no). We found three personal non-modifiable factors (level of education, comorbidity, level of visual impairment) and three modifiable factors (mobility, acceptance and optimism) to be significantly (p factors of optimism, acceptance and mobility should be included in an individual assessment instrument which can provide PVIs and their job coaches with good starting points for improving the labour market situation of the PVIs.

  4. El Soporte Conductual Positivo y la comunicación como factores clave en la intervención educativa de los niños con TEA

    OpenAIRE

    Lizondo-Nieto, Elina Marcela

    2013-01-01

    En este trabajo, vamos a estudiar el Soporte Conductual Positivo aplicado a la Escuela (SCPE) como un método de intervención educativa que permite construir el aprendizaje de los niños con trastornos del espectro autista (TEA) a partir de las conductas problemáticas que estos manifiestan convirtiéndolas en habilidades, que, a su vez, van a ser reforzadas a través del sistema TEACCH, lo que combinado con un sistema alternativo y aumentativo de comunicación (SAAC), como el PECS, va ...

  5. Número ideal de filhos como fator de risco para laqueadura tubária Ideal number of children as a risk factor for tubal ligation

    Directory of Open Access Journals (Sweden)

    Luiz Eduardo Campos de Carvalho

    2004-12-01

    Full Text Available O objetivo deste artigo é avaliar a associação entre o número ideal de filhos (NIF e a realização da laqueadura. Foi feito um estudo de caso-controle aninhado, com base em uma análise secundária de dados obtidos em um estudo de coorte sobre a saúde reprodutiva de mulheres em Campinas, São Paulo, Brasil, que teve como sujeitos 3.878 mulheres, das quais 1.012 eram laqueadas (casos. A relação entre NIF e o número de nascidos vivos (NV foi dividida em duas categorias (NIF > NV e NIF ¾ NV. Foram calculados os riscos relativos estimados (odds ratio para a realização de laqueadura e seus respectivos intervalos de confiança (IC 95% para a relação NIF/NV, estratificando-se para outras dez variáveis. Todas as variáveis preditoras foram incluídas em um modelo de regressão logística para identificar os fatores independentemente associados à esterilização definitiva. Observou-se que o risco de laqueadura foi maior entre as mulheres com NIF The purpose of this paper was to evaluate the association between ideal number of children (INC and female sterilization. A nested case-control study was performed through a secondary analysis of data from a cohort study on the reproductive health of women in Campinas, São Paulo, Brazil. A total of 3,878 women were included, 1,012 being sterilized (cases. The relationship between INC and number of live births (LB was divided in two categories (INC > LB and INC ¾ LB. The relative risks of performing tubal ligation were calculated (odds ratio with their respective 95% confidence intervals for the relation INC/LB and all control variables. All predictor variables were included in a logistic regression model in order to identify the factors independently associated with female sterilization. The results showed that the risks of tubal ligation were higher among women with INC < LB, higher age, with partners, higher family income, more than two previous pregnancies, more deliveries, fewer abortions

  6. CRITICAL THINKING TENDENCY LEVELS OF CANDITATE TEACHER OF VISUAL ARTS IN TERMS OF GENDER FACTOR

    Directory of Open Access Journals (Sweden)

    Asuman Aypek Arslan

    2017-04-01

    Full Text Available Critical thinking is an organized process aiming at obtaining knowledge in an original way, comparing, using and evaluating it. Critical thinking is a power triggering the knowledge production process and is the energy of knowledge. Science cannot be improved with the verification and repetition of what is known. It is only improved through questioning, emerging new information and new views. One of the high level needs of man in Maslow’s Needs Hierarchy is the realization of oneself. Individuals being able to realize themselves can decide what is true, what is wrong with their free wills. The most important task of education and the education of visual arts is to train creative and productive individuals being able to think all-round, learn how to learn, solve problems, respectful to humans, tolerant, having improved communication skills. It is of great importance to improve critical thinking skills at students in making them attain it. In making them attain these behaviours, it is of vital importance to improve critical thinking skills at students. In the current study, it was aimed to determine critical thinking levels of the candidates of visual arts and to determine whether the tendency of critical thinking differed in terms of gender. The data of the study was gathered through California Critical Thinking Tendency Scale. At the end of the study, it was found that candidate teachers of visual arts had tendency at medium level in general critical thinking. It was also found that the critical thinking tendencies of the candidate teachers of visual arts did not differ in terms of gender.

  7. Fatores considerados pela população como mais importantes para manutenção da saúde Factores considerados por la población como más importantes para el mantenimiento de la salud Factors considered important for health maintenance by the population

    Directory of Open Access Journals (Sweden)

    Fernando Vinholes Siqueira

    2009-12-01

    Full Text Available OBJETIVO: Analisar os fatores que adultos e idosos consideram como mais importantes para manutenção da saúde. MÉTODOS: Estudo transversal realizado com 4.060 adultos e 4.003 idosos residentes em áreas de abrangência de 240 unidades básicas de saúde das regiões Sul e Nordeste, em 2005. Um cartão com figuras e frases referentes a sete fatores relacionados com o risco de doenças e agravos não transmissíveis era mostrado aos indivíduos para que indicassem o fator mais relevante para a saúde. Os fatores eram: manter uma alimentação saudável, fazer exercício físico regularmente, não tomar bebidas alcoólicas em excesso, realizar consultas médicas regularmente, não fumar, manter o peso ideal e controlar ou evitar o estresse. As análises foram ajustadas por regressão de Poisson com cálculo de razões de prevalência ajustadas, intervalos com 95% de confiança, e valores de significância usando os Testes de Wald para heterogeneidade e tendência linear. RESULTADOS: Os fatores mais freqüentemente indicados pelos adultos foram: alimentação saudável (33,8%, realizar exercício físico (21,4% e não fumar (13,9%. Entre os idosos, os fatores mais relatados foram: alimentação saudável (36,7%, não fumar (17,7% e consultar o médico regularmente (14,2%. Foram observadas diferenças entre os fatores citados conforme a região geográfica, variáveis demográficas, socioeconômicas e de saúde. CONCLUSÕES: A maioria de adultos e idosos, de ambas regiões, reconhece e indica a necessidade de manter uma alimentação saudável e de não fumar como medidas mais importantes para manutenção da saúde. Estratégias de educação em saúde devem considerar essas características dos indivíduos para estimular medidas específicas a serem adotadas para cada segmento populacional.OBJETIVO: Analizar los factores que adultos y ancianos consideran como más importantes para mantenimiento de la salud. MÉTODOS: Estudio transversal

  8. The Tölz Temporal Topography Study: mapping the visual field across the life span. Part II: cognitive factors shaping visual field maps.

    Science.gov (United States)

    Poggel, Dorothe A; Treutwein, Bernhard; Calmanti, Claudia; Strasburger, Hans

    2012-08-01

    Part I described the topography of visual performance over the life span. Performance decline was explained only partly by deterioration of the optical apparatus. Part II therefore examines the influence of higher visual and cognitive functions. Visual field maps for 95 healthy observers of static perimetry, double-pulse resolution (DPR), reaction times, and contrast thresholds, were correlated with measures of visual attention (alertness, divided attention, spatial cueing), visual search, and the size of the attention focus. Correlations with the attentional variables were substantial, particularly for variables of temporal processing. DPR thresholds depended on the size of the attention focus. The extraction of cognitive variables from the correlations between topographical variables and participant age substantially reduced those correlations. There is a systematic top-down influence on the aging of visual functions, particularly of temporal variables, that largely explains performance decline and the change of the topography over the life span.

  9. Información y consumo de drogas. La TV como factor de riesgo en niños escolares Information Sources and Drugs Consumption. TV: a Risk Factor in Schoolchildren

    Directory of Open Access Journals (Sweden)

    Carin Alexa Prieto Cruz

    2009-10-01

    Full Text Available El uso indebido de drogas en la población en general es un área en continuo estudio que requiere de un mayor conocimiento de las variables asociadas para lograr una mejora en los programas de prevención y la información se presenta como una de las de menor estudio; el objetivo principal de la presente investigación fue determinar variables predictoras de consumo de drogas en un grupo de escolares a partir de la información que tengan de ellas. El tipo de estudio fue transversal; el modelo de regresión logística multifactorial determinó las variables asociadas al consumo de drogas en una muestra de 570 niños; se concluyó que el factor que más afectó al objeto de estudio fue la fuente de información, definida por la televisión, de la cual se piensa que la presentación de consumidores de drogas en ella es significativamente negativa y se toma de una forma simplista. Drug consumption in the population represents an area of continuous study which requires substantial knowledge of the associated variables in order to improve programs dedicated to consumption prevention. The main goal of this research was to determine the variables which can predict drug consumption in a group of 570 schoolchildren based on the knowledge the target group has got about these drugs. The type of study was transversal. The multifactorial logistic regression model determined factors associated with drug consumption in the sample. The most important factor contributing to consumption was television. The presentation of drug consumers on television is thought to be significantly negative and it is taken in a simplistic form.

  10. ESTRATEGIA DEL RENDIMENTO DE LA CALDAD COMO FACTOR COMPETITIVO EN EDUCACIÓN A DISTANCIA Y EDUCACIÓN SUPERIOR EN EDUCCIÓN UNIVERSITARIA

    Directory of Open Access Journals (Sweden)

    María Candelaria Rodríguez Pérez

    2009-07-01

    Full Text Available Se ve, a lo largo de la evaluación como algunos criterios de rendimiento académico, considerados como los más avanzados en el proceso de aprendizaje, indicadores por lo mismo de mayor cualificación, presentan logros inferiores por parte de los estudiantes de EDI (Educación a Distancia. Esto no es gratuito y tiene origen en la orientación pedagógica de la educación primaria y secundaria preocupada más por informar y desarrollar destrezas elementales, que por generar en sus alumnos capacidades de observación, análisis, síntesis y desarrollo del pensamiento divergente, de conciencia social y de capacidad de liderazgo para orientar el proceso de cambio social.

  11. Estudio de la autopercepción y los estilos de aprendizaje como factores asociados al rendimiento académico en estudiantes universitarios

    OpenAIRE

    Juan Miguel Bolívar López; Freddy Rojas Velásquez

    2014-01-01

    Los estudiantes que inician estudios universitarios, se sumergen en una nueva etapa académica totalmente desconocida. Las variables tradicionales que conforman sus estudios anteriores irrumpen de manera diferente. Por un lado, cambia la forma como adquirían sus conocimientos, las exigencias son mayores y el contenido es más denso, de ahí la necesidad de ajustar o incorporar nuevas estrategias de aprendizaje. Por el otro, por tratarse de adolescente enfrentados a un cambio educativo sustancia...

  12. A idade como fator prognóstico in vitro The age as a predictive factor in in vitro fertilization cycles

    Directory of Open Access Journals (Sweden)

    Luiz Mauro Oliveira Gomes

    2009-05-01

    Full Text Available OBJETIVO: avaliar a idade da paciente como fator indicador de resultados em um programa de fertilização in vitro. MÉTODOS: estudo transversal que incluiu 302 mulheres, com idade variando entre 24 e 46 anos, submetidas ao tratamento com fertilização in vitro (FIV, no período de Maio de 2005 a Julho de 2007. As pacientes foram divididas em três grupos, de acordo com a faixa etária: G40 (n=52. Foram avaliados: número de oócitos aspirados, taxas de fertilização, número de embriões transferidos, qualidade embrionária e taxas de gravidez. A análise estatística foi realizada pela análise de variância de Kruskal-Wallis e pelo teste do χ2. RESULTADOS: no Grupo G40, 1,6 oócitos por paciente. O número de oócitos obtidos no Grupo G>40 foi significantemente menor que nos Grupos G40, havendo redução estatisticamente significante no Grupo G>40 (p40 apresentou taxa de 9,6%, resultado significantemente inferior (p=0,0339 aos Grupos GPURPOSE: to evaluate the patient's age as an outcome predictor in an in vitro fertilization (IVF program. METHODS: transversal study, which has included 302 women with ages varying from 24 to 46 years old, submitted to IVF, from May 2005 to July 2007. The patients were divided in three groups, according to their age: G40 (n=52. The number of collected oocytes, the fertilization rates, the number of transferred embryos, the embryonary quality and the pregnancy rate were evaluated. Statistical analysis was realized through Kruskal-Wallis variance analysis and χ2 test. RESULTS: in the G40 group, 1.6. The number of oocytes obtained in G>40 group was significantly lower than in the other two groups (p40, respectively, with statistically significant decrease in the G>40 group (p40 group has presented a rate of 9.6%, a result which is significantly lower (p=0.0330 than the one presented by the G<35 and G 36-39 groups (26.1 e 27.0%, respectively, with no significant difference between themselves. CONCLUSIONS: though

  13. Predictive Factors for Visual Field Conversion: Comparison of Scanning Laser Polarimetry and Optical Coherence Tomography.

    Science.gov (United States)

    Diekmann, Theresa; Schrems-Hoesl, Laura M; Mardin, Christian Y; Laemmer, Robert; Horn, Folkert K; Kruse, Friedrich E; Schrems, Wolfgang A

    2018-02-01

    The purpose of this study was to compare the ability of scanning laser polarimetry (SLP) and spectral-domain optical coherence tomography (SD-OCT) to predict future visual field conversion of subjects with ocular hypertension and early glaucoma. All patients were recruited from the Erlangen glaucoma registry and examined using standard automated perimetry, 24-hour intraocular pressure profile, and optic disc photography. Peripapillary retinal nerve fiber layer thickness (RNFL) measurements were obtained by SLP (GDx-VCC) and SD-OCT (Spectralis OCT). Positive and negative predictive values (PPV, NPV) were calculated for morphologic parameters of SLP and SD-OCT. Kaplan-Meier survival curves were plotted and log-rank tests were performed to compare the survival distributions. Contingency tables and Venn-diagrams were calculated to compare the predictive ability. The study included 207 patients-75 with ocular hypertension, 85 with early glaucoma, and 47 controls. Median follow-up was 4.5 years. A total of 29 patients (14.0%) developed visual field conversion during follow-up. SLP temporal-inferior RNFL [0.667; 95% confidence interval (CI), 0.281-0.935] and SD-OCT temporal-inferior RNFL (0.571; 95% CI, 0.317-0.802) achieved the highest PPV; nerve fiber indicator (0.923; 95% CI, 0.876-0.957) and SD-OCT mean (0.898; 95% CI, 0.847-0.937) achieved the highest NPV of all investigated parameters. The Kaplan-Meier curves confirmed significantly higher survival for subjects within normal limits of measurements of both devices (P<0.001). Venn diagrams tested with McNemar test statistics showed no significant difference for PPV (P=0.219) or NPV (P=0.678). Both GDx-VCC and SD-OCT demonstrate comparable results in predicting future visual field conversion if taking typical scans for GDx-VCC. In addition, the likelihood ratios suggest that GDx-VCC's nerve fiber indicator<30 may be the most useful parameter to confirm future nonconversion. (http://www.ClinicalTrials.gov number, NTC

  14. Long-term outcomes of penetrating keratoplasty in keratoconus:analysis of the factors associated with final visual acuities

    Directory of Open Access Journals (Sweden)

    Jin A Choi

    2014-06-01

    Full Text Available AIM: To investigate the long-term results of penetrating keratoplasty (PK in patients with keratoconus (KC and to evaluate factors that might influence the final visual outcome.METHODS:We retrospectively reviewed the data of all patients with clinical KC who had undergone PK by a single corneal surgeon in a single center from May 1980 to December 2005. The age of the patients, preoperative best-corrected visual acuity (BCVA, corneal thickness, death to preservation time, and preservation to transplantation time were recorded. Additionally, postoperative complications such as graft rejection, development of glaucoma and specular microscopy were checked during the follow-up.RESULTS:Sixty-nine eyes from 69 patients were finally included. The follow-up period was 8.64±6.13y. Graft rejection occurred in 4 eyes of 69 cases (5.8%, and the time to graft rejection was 2.1±1.3y. A Kaplan–Meier survival analysis showed that the estimated cumulative probability of graft rejection at 6, 13, and 17y after PK were 95.6%, 90.0%, and 78.8%, respectively. When we evaluated factors that might influence final BCVA in eyes, no disparity donor-host trephine size (same graft size as well as higher spherical equivalent, and average K-value were associated with higher final BCVA. (P=0.006, 0.051, 0.092, and 0.021 in eyes with follow-up <8y; P=0.068, 0.065, and 0.030 in eyes with follow-up ≥8y, respectively.CONCLUSION: The long-term results of PK in patients with KC were favorable with a high percentage of good BCVA. Less myopic change and low average K-reading, as well as a surgical technique using the same size donor-recipient button may provide better visual outcomes particularly in patients with KC.

  15. Use of optical aids by visually impaired students: social and cultural factors Uso de auxílios ópticos por escolares com deficiência visual: fatores socioculturais

    Directory of Open Access Journals (Sweden)

    Gelse Beatriz Martins Monteiro

    2006-08-01

    Full Text Available PURPOSE: To identify conceptions, social and cultural factors regarding the use of optical aids by visually impaired students and to present information to health and educational professionals. METHODS: Qualitative research using spontaneous theater (interactive theater modality based on improvisation as research instrument. To analyze data, an adapted form of the collective subject discourse technique - procedures for organization of verbal data - was applied. Scenes, gestures, expressions, silences and behaviors were added to the original proposal. The study population included all visually impaired students from elementary public schools, aged 10 to 14 years who attended a resource room in a São Paulo state city. The students were examined at a university low vision service. RESULTS: Little knowledge about the impairment and difficult adaptation to use of optical aids were identified. The students' behavior showed denial of own problems, discomfort on public use of aids and lack of participation in own health decisions. CONCLUSION: Analysis through spontaneous theater session allows the professional to gather information which is not possible to acquire in the health assistance atmosphere. Needs, difficulties and barriers the users found before the prescribed treatment were identified.OBJETIVO: Identificar concepções e verificar aspectos socioculturais a respeito do uso de auxílios ópticos por escolares deficientes visuais e oferecer informações a profissionais das áreas de saúde e educacional. MÉTODOS: Utilizou-se pesquisa qualitativa mediante aplicação da técnica do teatro espontâneo - modalidade de teatro interativo, de improviso, construído a partir de histórias contadas pelos participantes. Para análise das informações colhidas, foi adaptada a técnica de análise do discurso do sujeito coletivo, conjunto de procedimentos de organização de dados discursivos de natureza verbal. Por se tratar de técnica psicodram

  16. CONREAL web server: identification and visualization of conserved transcription factor binding sites

    NARCIS (Netherlands)

    Berezikov, E.; Guryev, V.; Cuppen, E.

    2005-01-01

    The use of orthologous sequences and phylogenetic footprinting approaches have become popular for the recognition of conserved and potentially functional sequences. Several algorithms have been developed for the identification of conserved transcription factor binding sites (TFBSs), which are

  17. El estrato socioeconómico como factor predictor del uso constante de condón en adolescentes Socioeconomic strata as a predictor factor for consistent condom use among adolescents

    Directory of Open Access Journals (Sweden)

    Ramiro Caballero Hoyos

    2001-12-01

    Full Text Available OBJETIVO: El estrato socioeconómico juega un rol importante en las desigualdades en salud. En México, la prevalencia más alta de casos de SIDA se encuentra en población de estratos más bajos. El propósito de lo estudio fue describir el estrato socioeconómico (ajustado por variables psicosociales, situacionales y demográficas como un factor predictor del uso consistente del condón, en adolescentes. MÉTODOS: Se incluyó en el estudio una muestra de una encuesta previa aplicada a 1.410 adolescentes de 15 a 19 años y estratificada por edad, género y estrato socioeconómico de Guadalajara, México. El análisis fue aplicado sobre los 251 adolescentes que reportaron actividad sexual. El análisis estadístico se realizó mediante Ji Cuadrada, t-test, ANOVA y regresión logística. RESULTADOS: La frecuencia de uso consistente de condón fue 30,7% y hubo una prevalencia de uso irregular. El estrato socioeconómico alto fue el principal predictor (OR= 11,1, CI95%= 2,6-47,6. Otros predictores significativos fueron el género masculino, el soporte de los pares y el nivel alto de conocimientos sobre VIH/SIDA. CONCLUSIÓN: El estrato socioeconómico es un importante factor predictor del uso consistente del condón.INTRODUCTION: Socioeconomic level plays an important role in health inequalities. In Mexico, the highest prevalence of AIDS cases is among individuals of lower socioeconomic level. The purpose of the study was to describe the socioeconomic level (adjusted for psychosocial, situational and demographic variables as a predictor factor for the consistent condom use among adolescents of Guadalajara, Mexico. METHODS: A sample of 1,410 adolescents, aged 15 to 19 years, drawn from a previous survey stratified by age, gender and socioeconomic strata was included in the study. Analysis was performed in 251 adolescents who reported sexual activity. Statistical analysis was performed using Chi-square, t-test, ANOVA, and logistic regression. RESULTS

  18. Effect of Factor XIII-A G185T Polymorphism on Visual Prognosis after Photodynamic Therapy for Neovascular Macular Degeneration

    Directory of Open Access Journals (Sweden)

    Francesco Parmeggiani

    2015-08-01

    Full Text Available Macular degenerations represent leading causes of central blindness or low vision in developed countries. Most of these severe visual disabilities are due to age-related macular degeneration (AMD and pathologic myopia (PM, both of which are frequently complicated by subfoveal choroidal neovascularization (CNV. Photodynamic therapy with verteporfin (PDT-V is still employed for CNV treatment in selected cases or in combined regimen. In Caucasian patients, the common polymorphism G185T of factor XIII-A gene (FXIII-A-G185T; rs5985 has been described as predictor of poor angiographic CNV responsiveness to PDT-V. Nevertheless, the prognostic implications of this pharmacogenetic determinant on long-term visual outcome after a PDT-V regimen have not been evaluated. We retrospectively selected Caucasian patients presenting with treatment-naive CNV and receiving standardized PDT-V protocol for two years. The study population included patients affected by subfoveal CNV secondary to AMD or PM. We assessed the correlations between the polymorphic allele T of FXIII-A-G185T and: (1 total number of photodynamic treatments; and (2 change in visual acuity from baseline to the end of the follow-up period. Considering a total study population of 412 patients with neovascular AMD or PM, the carriers of 185 T-allele of FXIII-A (GT or TT genotype received a higher number of photodynamic treatments than patients without it (GG wild-type genotype (p < 0.01; mean number of PDT-V: 5.51 vs. 3.76, respectively. Moreover, patients with 185 T-allele of FXIII-A had a more marked worsening of visual acuity at 24 months than those with the GG-185 wild genotype (p < 0.01; mean difference in logMAR visual acuity: 0.22 vs. 0.08, respectively. The present findings show that the G185T polymorphism of the FXIII-A gene is associated with significant differences in the long-term therapeutic outcomes of patients treated with standardized PDT-V protocol. The comprehensive appraisal of

  19. TUBERCULOSIS COMO ENFERMEDAD OCUPACIONAL

    Science.gov (United States)

    Mendoza-Ticona, Alberto

    2014-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto. PMID:22858771

  20. La imagen de empresa como factor determinante en la elección de operador: identidad y posicionamiento de las empresas de comunicaciones móviles

    OpenAIRE

    García de los Salmones Sánchez, María del Mar

    2002-01-01

    La imagen corporativa se constituye como un activo intangible fuente de ventajas competitivas que debe ser correctamente gestionado para extraerle todo su potencial. Partiendo de una revisión de literatura sobre imagen e identidad, la Tesis profundiza en el carácter multidimensional de la imagen y en las variables que influyen en la misma. Para ello se plantean diversas hipótesis referidas a los determinantes de la elección de empresa con mejor imagen global, desarrollando al respecto un mode...

  1. Las motivaciones como factor clave de la conducta turística. Un estudio empírico en el Sureste Español

    OpenAIRE

    Beltrán Bueno, Miguel Ángel

    2014-01-01

    En estos tiempos de fuertes caídas en la demanda interna, la inversión y el gasto público, el sector turístico español ha mantenido extraordinariamente bien las cifras de empleo y de ingresos. Esto significa que, se trata de un sector muy estratégico y ha provocado que tanto empresas como instituciones públicas muestren un mayor interés por el mismo y lo conviertan en una alternativa sólida para el crecimiento y desarrollo de determinadas regiones o áreas geográficas. Desde una perspe...

  2. ANÁLISIS DEL ESTILO DE LIDERAZGO Y CULTURA ORGANIZACIONAL COMO FACTOR INFLUYENTE DE ÉXITO EN LAS REDES DE MERCADEO DE AMWAY DE VENEZUELA LLC.

    OpenAIRE

    Polanco, Betzabeth Noemi Fernández

    2016-01-01

    En un mundo globalizado donde frecuentemente hay nuevos avances tecnológicos y nuevas teorías organizacionales como el liderazgo y cultura organizacional es imprescindible ser parte de ello para aprender a adaptarse a las teorías que concuerden con cada tipo de organización e innovar continuamente agregando valor a todos los procesos de la empresa con el fin de alcanzar una mejor rentabilidad y ofrecer calidad en productos o servicios. Por ello es necesario saber distinguir los...

  3. The journal impact factor as a parameter for the evaluation of researchers and research El factor de impacto de las revistas como parámetro para la evaluacion de investigadores e investigaciones

    Directory of Open Access Journals (Sweden)

    K.-F. Kaltenborn

    2004-07-01

    Full Text Available The journal impact factor (IF, which is published annually by the Institute for Scientific Information® (USA, is meanwhile in widespread use as a scientometric parameter for the evaluation of research and researchers in Germany and other European countries. The present article subjects the IF to critical analysis. It first deals with processes of production, transfer, and use of medical knowledge, because the IF intervenes in these processes on account of its reflexivity. Secondary effects of the IF resulting from its reflexivity are discussed with the focus on the level of the author, the journal and the medical discipline as well as on social knowledge processes in society. In addition, the extent to which the IF is appropriate for evaluating the quality of a specific article, of a journal or of individual and collective research achievements is discussed. The present article calls for a research evaluation in accordance with the recommendations of the Deutsche Forschungsgemeinschaft (German Research Council, DFG and of the Arbeitsgemeinschaft der Wissenschaftlichen Medizini-schen Fachgesellschaften (Association of the Scientific Medical Societies, AWMF; and b for more intensive occupation with and organization of medical knowledge processes.El factor de impacto de las revistas (journal impact factor - IF, que publica anualmente el Institute for Scientific Information® (EE.UU., se emplea generalizadamente como parámetro cienciométrico para evaluar las investigaciones y a los investigadores en Alemania y otros países europeos. El presente artículo somete al IF a un análisis crítico. Primero trata de los procesos de producción, comunicación y empleo del conocimiento médico, pues el IF interviene en estos procesos en virtud de su reflexividad. Se exponen los efectos secundarios del IF, que surgen de esta reflexividad, centrándose en el nivel del autor, de la revista y de la disciplina médica, así como en los procesos de conocimiento

  4. La calidad en la gestión como factor de cambio institucional en las organizaciones gubernamentales del Estado de México

    Directory of Open Access Journals (Sweden)

    Leticia Contreras Orozco

    2010-01-01

    Full Text Available Los cambios económicos y políticos de las últimas décadas han impulsado cambios importantes en la gestión gubernamental, algunos de ellos se han reflejado en el uso de técnicas de calidad basadas en modelos de estandarización como el ISO 9000. Por lo anterior, el presente artículo se propone identificar los rasgos del cambio institucional que puede traer consigo la incorporación de tales prácticas en el ámbito gubernamental, así como sus posibles dificultades. El análisis de los cambios en la gestión pública a partir de la introducción de técnicas de calidad se plantea a partir de la concepción de cambio desde la visión neoinstitucionalista, y se utiliza la categoría explicativa de isomorfismo para exponer la forma en que estas prácticas son adoptadas en las organizaciones públicas.

  5. La formación como factor clave en la integración de la Pizarra Digital Interactiva. Perspectivas de profesores y coordinadores TIC.

    Directory of Open Access Journals (Sweden)

    Marta Gómez Gómez

    2016-01-01

    Full Text Available En las dos últimas décadas se han ido percibiendo cada vez más centros educativos interesados en contar con las tecnologías en sus aulas. En esta situación se encuentran los colegios públicos de Educación Infantil y Primaria de Alcorcón, Madrid. Durante el curso 2010/2011 el ayuntamiento de este municipio implantó 400 pizarras digitales interactivas en dichos centros. El primer objetivo del estudio es conocer su impacto inicial en el proceso de enseñanza-­‐aprendizaje a través de la percepción de profesores encuestados, como principales agentes de cambio. En el curso 2013/2014, trascurridos varios años, se pretendió conocer la evolución del recurso, para lo cual se entrevistaron a sus coordinadores TIC. La metodología empleada ha sido mixta y los principales resultados demuestran una buena acogida inicial a pesar de diferentes inconvenientes encontrados, tales como la escasa formación recibida, problemas técnicos, gran inversión de tiempo, etc. En definitiva, se puede concluir que la motivación, el cambio en la metodología y en la evaluación y, sobre todo, una adecuada formación técnico-­‐pedagógica son claves para su exitosa integración.

  6. VISUAL COMPONENT OF INTERNET EDITIONS AS A FACTOR IN THEIR POSITIONING AND PROMOTION

    Directory of Open Access Journals (Sweden)

    Sergey Viktorovich Murashchenkov

    2017-04-01

    Full Text Available Purpose. Identify the specificity of the perception by consumer media through its adaptation in the form of an Internet resource. Consider the possibility of establishing universal principles of design online version of the printed edition, simplified as much as possible and comfortable to use, paying particular attention to the design and layout of the publication, including news blocks, which important for the development of media in social science. Methodology. The article is an summary of original study based on the results of focus groups conducted in the context of the present topic. Methodology comprise the analytical study and psychoanalysis. Results. The results of the study are that the authors try to identify the main features of the development of the Internet version of the print edition of its region. The result of this work demonstrates the universal ways of mapping the functional and visual component layout of the site, which can be applied in the same media. Authors try to focus on the main page of the online version of the publication and attach the particular importance to the selection of fonts and color palettes for design that promotes a more comfortable use of the resource and also note the importance of adapting the site to the mobile version. Practical implications. The results of the study can be applied in the field of social psychology, advertising, design and journalism.

  7. Determination and support as successful factors for smoking cessation La determinación y el apoyo como factores de éxito en el abandono del tabaquismo Determinação e apoio como fatores de sucesso no abandono do tabagismo

    Directory of Open Access Journals (Sweden)

    Isabel Cristina Echer

    2008-06-01

    Full Text Available This study aimed to analyze determination and support as successful factors for smoking cessation. Qualitative study in which 16 individuals from Porto Alegre, Brazil, who had ceased smoking for more than six months, with score > 5 according to Fagerström scale, were interviewed. Information was examined through Content Analysis according to the following steps: pre-analysis, material investigation and result treatment. Smoking cessation was a consequence of a group of factors, with determination (the will to cease smoking and the difficulty to cease smoking and the received support (occupational; family; social, and spiritual, and through a specific course and support groups as the focus of this article. The results suggest that the smoker's determination to cease smoking together with the support of society segments and the benefits from that are helpful factors in the smoking cessation process.Este estudio tuvo como objetivo analizar los factores que contribuyen para obtener éxito en abandonar el tabaquismo. Es un estudio cualitativo, en el cual fueron entrevistados 16 individuos de Porto Alegre, en Brasil, que dejaron de fumar hace más de seis meses, con puntuación > 5 de la escala de Fagerström. Las informaciones fueron examinadas por un Análisis de Contenido, por medio de las etapas de análisis, examen del material y tratamiento de los resultados. El abandono del tabaquismo es el resultado de un conjunto de factores, siendo el foco de este artículo la determinación (querer parar y la dificultad de parar de fumar y el apoyo recibido (profesional, familiar, social y espiritual. Los resultados sugieren que la determinación del fumador de querer parar de fumar, aliada al apoyo de segmentos de la sociedad son factores que ayudan de forma significativa para el proceso de abandono del tabaquismo.Este estudo teve por objetivo analisar fatores que contribuem para o sucesso no abandono do tabagismo. Estudo qualitativo, no qual foram

  8. Contributing factors to VEP grating acuity deficit and inter-ocular acuity difference in children with cerebral visual impairment.

    Science.gov (United States)

    Cavascan, Nívea Nunes; Salomão, Solange Rios; Sacai, Paula Yuri; Pereira, Josenilson Martins; Rocha, Daniel Martins; Berezovsky, Adriana

    2014-04-01

    To investigate contributing factors to visual evoked potential (VEP) grating acuity deficit (GAD) and inter-ocular acuity difference (IAD) measured by sweep-VEPs in children with cerebral visual impairment (CVI). VEP GAD was calculated for the better acuity eye by subtracting acuity thresholds from mean normal VEP grating acuity according to norms from our own laboratory. Deficits were categorized as mild (0.17 ≤ deficit children (66 males-57 %) with ages ranging from 1.2 to 166.5 months (median = 17.7) was examined. VEP GAD ranged from 0.17 to 1.28 log units (mean = 0.68 ± 0.27; median = 0.71), and it was mild in 23 (20 %) children, moderate in 32 (28 %) and severe in 60 (52 %). Severe deficit was significantly associated with older age and anti-seizure drug therapy. IAD ranged from 0 to 0.49 log units (mean = 0.06 ± 0.08; median = 0.04) and was acceptable in 96 (83 %) children. Children with strabismus and nystagmus had IAD significantly larger compared to children with orthoposition. In a large cohort of children with CVI, variable severity of VEP GAD was found, with more than half of the children with severe deficits. Older children and those under anti-seizure therapy were at higher risk for larger deficits. Strabismus and nystagmus provided larger IADs. These results should be taken into account on the clinical management of children with this leading cause of bilateral visual impairment.

  9. Sex hormone binding globulin decrease as potential pathogenetic factor for hirsutism in adolescent girls Disminución de la globulina transportadora de hormonas sexuales como factor patogénico de hirsutismo en la adolescencia

    Directory of Open Access Journals (Sweden)

    Graciela Cross

    2008-04-01

    Full Text Available We investigated 252 non-obese female subjects aged 13-39 years to evaluate if an exaggerated descent of sex hormone binding globulin (SHBG levels during adolescence can play a role in the development of hirsutism. Body hair was assessed according to Ferriman and Gallwey (FG, with a stringent criterion of normality of 4 and controls (FG Se investigaron 252 mujeres con peso normal, de 13 a 39 años de edad, para evaluar si un descenso exagerado en los niveles de la globulina transportadora de hormonas sexuales ("sex hormone binding globulin"; SHBG puede tener un rol en el desarrollo de hirsutismo. Este signo fue evaluado con la escala de Ferriman y Gallwey (FG, empleando un criterio riguroso de normalidad 4 y controles (FG < 4, ciclos menstruales regulares, sin acné. En adolescentes de 15-18 años, los valores de SHBG fueron menores en las "hirsutas", los niveles de FT fueron similares en ambos grupos y el índice de FG correlacionó inversamente con SHBG. En las mujeres de 19-39 años, los niveles de FT fueron mayores en las "hirsutas", los valores de SHBG fueron similares en ambos grupos y FG correlacionó positivamente con FT. Los valores más bajos de SHBG se observaron entre 15 y 18 años, pero la pendiente de disminución a partir de los valores de 13-14 años fue mayor en el grupo de "hirsutas". Los valores de FT se incrementaron progresivamente con la edad, pero el aumento fue mayor en el grupo de "hirsutas". Estos resultados sugieren un rol importante del descenso de SHBG en la adolescencia vs. un incremento más acentuado de los niveles de testosterona en las adultas, como factores que condicionan el desarrollo del hirsutismo en esos dos diferentes periodos de la vida.

  10. Riesgos visuales en laboratorios ópticos y plan de selección de elementos de protección personal visual

    OpenAIRE

    Rojas Triana, Johanna Isabel; Sastoque Torres, Maritza Andrea

    2005-01-01

    Al hacer una observación del personal que labora en varios laboratorios ópticos de Bogotá, se encontró la necesidad de seleccionar los equipos de protección personal visual adecuados para los trabajadores de dichos laboratorios, por la posibilidad de exposición, ya que estos están expuestos en su puesto de trabajo a diversos factores de riesgo que pueden afectar su salud visual y ocular, tales como: factores químicos, manejo de químicos, factores mecánicos y riesgos físicos visuales. La prese...

  11. Breast cancer lymphoscintigraphy: Factors associated with sentinel lymph node non visualization.

    Science.gov (United States)

    Vaz, S C; Silva, Â; Sousa, R; Ferreira, T C; Esteves, S; Carvalho, I P; Ratão, P; Daniel, A; Salgado, L

    2015-01-01

    To evaluate factors associated with non identification of the sentinel lymph node (SLN) in lymphoscintigraphy of breast cancer patients and analyze the relationship with SLN metastases. A single-center, cross-sectional and retrospective study was performed. Forty patients with lymphoscintigraphy without sentinel lymph node identification (negative lymphoscintigraphy - NL) were enrolled. The control group included 184 patients with SLN identification (positive lymphoscintigraphy - PL). Evaluated factors were age, body mass index (BMI), tumor size, histology, localization, preoperative breast lesion hookwire (harpoon) marking and SLN metastases. The statistical analysis was performed with uni- and multivariate logistic regression models and matched-pairs analysis. Age (p=0.036) or having BMI (p=0.047) were the only factors significantly associated with NL. Being ≥60 years with a BMI ≥30 increased the odds of having a NL 2 and 3.8 times, respectively. Marking with hookwire seems to increase the likelihood of NL, but demonstrated statistical significance is lacking (p=0.087). The other tested variables did not affect the examination result. When controlling for age, BMI and marking with the harpoon, a significant association between lymph node metastization and NL was not found (p=0.565). The most important factors related with non identification of SLN in the patients were age, BMI and marking with hook wire. However, only the first two had statistical importance. When these variables were controlled, no association was found between NL and axillary metastases. Copyright © 2015 Elsevier España, S.L.U. and SEMNIM. All rights reserved.

  12. El capital humano como factor determinante de la absorción de conocimiento en la industria farmacéutica mexicana

    Directory of Open Access Journals (Sweden)

    Herlinda Canto Valencia

    2016-03-01

    Full Text Available La capacidad de absorción, entendida como la apropiación de conocimiento externo para mejorar la innovación de las empresas cuando los determinantes internos son favorables, ha cobrado interés en la última década a nivel mundial. El objetivo de la investigación cuantitativa no experimental, transversal, correlacional-causal es evaluar la relación existente entre la capacidad de absorción potencial del conocimiento externo en sus dos dimensiones: adquirida y asimilada, con el capital humano, que es un determinante que la empresa posee. Llegando a la conclusión de que existe una relación positiva y significativa entre el determinante interno capital humano y la capacidad de absorción potencial.

  13. "Usability of data integration and visualization software for multidisciplinary pediatric intensive care: a human factors approach to assessing technology".

    Science.gov (United States)

    Lin, Ying Ling; Guerguerian, Anne-Marie; Tomasi, Jessica; Laussen, Peter; Trbovich, Patricia

    2017-08-14

    Intensive care clinicians use several sources of data in order to inform decision-making. We set out to evaluate a new interactive data integration platform called T3™ made available for pediatric intensive care. Three primary functions are supported: tracking of physiologic signals, displaying trajectory, and triggering decisions, by highlighting data or estimating risk of patient instability. We designed a human factors study to identify interface usability issues, to measure ease of use, and to describe interface features that may enable or hinder clinical tasks. Twenty-two participants, consisting of bedside intensive care physicians, nurses, and respiratory therapists, tested the T3™ interface in a simulation laboratory setting. Twenty tasks were performed with a true-to-setting, fully functional, prototype, populated with physiological and therapeutic intervention patient data. Primary data visualization was time series and secondary visualizations were: 1) shading out-of-target values, 2) mini-trends with exaggerated maxima and minima (sparklines), and 3) bar graph of a 16-parameter indicator. Task completion was video recorded and assessed using a use error rating scale. Usability issues were classified in the context of task and type of clinician. A severity rating scale was used to rate potential clinical impact of usability issues. Time series supported tracking a single parameter but partially supported determining patient trajectory using multiple parameters. Visual pattern overload was observed with multiple parameter data streams. Automated data processing using shading and sparklines was often ignored but the 16-parameter data reduction algorithm, displayed as a persistent bar graph, was visually intuitive. However, by selecting or automatically processing data, triggering aids distorted the raw data that clinicians use regularly. Consequently, clinicians could not rely on new data representations because they did not know how they were

  14. Study of Factors of Marriage Motivation among Single people with Andwithout Visual Impairment

    Directory of Open Access Journals (Sweden)

    Zarrin Dadkhah

    2009-04-01

    Full Text Available Objectives: Talking about needs, it means to consider the reasons of human behavior. Because such behavior starts with one or several needs which will cause to develop different societies according to the degree of civilization, and also social-cultural factors treat differently with blinds, so these different circumstances can create different needs and motivation for them. Methods: On this basis, in order to measure marriage motivation, a, questionnaire made by researcher using Maslow's hierarchy of needs, which contains 45 questions. The participants consisted of 76 blind (In Isfahan, by using stratified sampling method and 76 normal. The two groups in respect to age, sex, education level employment and income level were matched. Results: Statistical analysis of results showed that a significant difference exists in respect and self-sufficient factors of marriage motivation between two groups (P<0.05. Discussion: With respect to the results, it seems that blind people contrary to relatively deprivation that they face, willing to act upon their own internal values. Therefore any problem in their marriage motivation can be due to their interactions with others.

  15. Usos y tendencias adictivas de una muestra de estudiantes universitarios españoles a la red social Tuenti: la actitud positiva hacia la presencia de la madre en la red como factor protector

    Directory of Open Access Journals (Sweden)

    Mercedes Durán

    2015-01-01

    Full Text Available El objetivo de este trabajo fue estudiar, desde el paradigma de usos y gratificaciones, el uso que los estudiantes universitarios españoles (N = 221 hacen de la red social Tuenti, y en qué medida estos usos se asocian con sus niveles de adicción a dicha red social. Además se analizó el papel que los progenitores tienen como facilitadores o inhibidores de dichas tendencias adictivas y el impacto del género. Los resultados muestran cuatro categorías de usos de la red Tuenti: entretenimiento, comunicación a través del muro, comunicación a nivel privado e información social. Además, la actitud positiva hacia la presencia de la madre en la red Tuenti se muestra como un factor de protección de las tendencias adictivas a la red. Por último, se han encontrado diferencias estadísticamente significativas en función del género, tanto en los usos que realizan chicos y chicas, como en sus patrones de adicción a la red Tuenti, de tal manera que los chicos informan de niveles de adicción superiores a los informados por las chicas en el uso de esta red social.

  16. Human Factors Principles in Design of Computer-Mediated Visualization for Robot Missions

    Energy Technology Data Exchange (ETDEWEB)

    David I Gertman; David J Bruemmer

    2008-12-01

    With increased use of robots as a resource in missions supporting countermine, improvised explosive devices (IEDs), and chemical, biological, radiological nuclear and conventional explosives (CBRNE), fully understanding the best means by which to complement the human operator’s underlying perceptual and cognitive processes could not be more important. Consistent with control and display integration practices in many other high technology computer-supported applications, current robotic design practices rely highly upon static guidelines and design heuristics that reflect the expertise and experience of the individual designer. In order to use what we know about human factors (HF) to drive human robot interaction (HRI) design, this paper reviews underlying human perception and cognition principles and shows how they were applied to a threat detection domain.

  17. Efeito de fatores ambientais sobre escores de avaliação visual à desmama e estimativa de parâmetros genéticos, para bezerros da raça charolês Effects of environmental factors on visual scores at weaning and genetic parameters for charolais calves

    Directory of Open Access Journals (Sweden)

    Carlos Junior Kippert

    2006-04-01

    Full Text Available Para avaliar a influência de alguns fatores de ambiente sobre escores de avaliação visual à desmama em animais da raça Charolês e estimar parâmetros genéticos, foram utilizadas informações coletadas pelo PROMEBO durante os anos de 1994 a 2002. As características estudadas foram os escores de conformação (C, precocidade (P, musculatura (M e tamanho (T à desmama. Inicialmente foi realizada uma análise de variância, para verificar quais fatores apresentavam efeito significativo sobre as características em estudo. O modelo considerou como fixo, o efeito de grupo de contemporâneos (GC, constituído por fazenda, sexo, estação e ano de nascimento e, como covariáveis, a idade da vaca ao parto (IV, a idade do bezerro à desmama (ID e a data juliana de nascimento (DJ, além do efeito residual, como aleatório. Todos os efeitos incluídos no modelo foram significativos para os escores visuais (PTo evaluate the influence of environmental factors on visual scores at weaning on Charolais breed animals, and to estimate genetic parameters, it were used records collected by PROMEBO from 1994 to 2002. The traits evaluated were the visual scores for conformation (C, precocity (P, muscling (M and size (T at weaning. First of all, it was performed an analyse of variance to verify wich environmental effects were significant on the studied characteristics. The model used considered, as fixed, the effect of contemporaneous group (GC, as covariables, the effects of age of the dam at parturition (IV, age at weaning (ID and Julian date of birth (DJ and the residual effect. All the variables included in the model affected significantly visual scores (P<0,05, except DJ, for M, P and C. From the adjusted averages for C, P, M and T it were adjusted regression equations for IV, ID and DJ. It was observed that cows freshening between 7 and 8 years produced calves with larger scores. In relation to the weaning age, it was observed that the animals weaned

  18. Comportamiento y bienestar financiero como factores competitivos en el personal académico de una institución de Educación Superior

    Directory of Open Access Journals (Sweden)

    Laura Guillermina Duarte Cáceres

    2016-03-01

    Full Text Available Los problemas de salud y de finanzas personales afectan a gran diversidad de hogares. La falta de un comportamiento adecuado en la administración de las finanzas produce, entre otras consecuencias, una gran ansiedad o estrés. El aumento de estrés y la ansiedad van de la mano cuando no se tiene control del dinero, haciendo de esta forma que no se alcance el bienestar financiero (Tyson, 2006. Este trabajo, a través de un estudio cuantitativo, tiene como objetivo establecer la relación entre el comportamiento financiero y el bienestar financiero. Los resultados se obtuvieron a través de una encuesta aplicada en el mes de agosto y septiembre de 2012. El análisis de la información determina que el modelo de regresión lineal explica de manera razonable la relación entre las variables comportamiento financiero y bienestar financiero

  19. Imagen corporal como factor de riesgo en los trastornos de la alimentación: una comparación transcultural entre México y España

    OpenAIRE

    G. GÓMEZ PERESMITRE; M. V. ACOSTA GARCIA

    2000-01-01

    El presente estudio tuvo como objetivo analizar factores de riesgo en trastornos de la alimentación, asociados con imagen corporal y con conducta alimentaria en muestras de mujeres estudiantes igualadas en edad y de diferentes culturas: la española y la mexicana. Los resultados se discuten a la luz de lo que nos aporta la literatura transcultural, y entre los hallazgos más importantes, se encontró que las mexicanas comparten un prototipo ideal de imagen corporal y que ante las mismas situacio...

  20. Factores que influyen en la aceptabilidad del uso de la vasectomía como estrategia para la disminución de embarazos no deseados por parte de miembros de las Fuerzas Militares de Colombia

    OpenAIRE

    Vidal Rivera, Yuly Anjelica; Garzón Cortes, Karen Irene

    2013-01-01

    Este trabajo de tesis se realizó con el objetivo de conocer y determinar, los factores que influyen en la aceptabilidad del uso de la vasectomía, como estrategia para la disminución de embarazos no deseados por parte de miembros de las Fuerzas Armadas de Colombia, buscando una estrategia adecuada para reducir costos del sistema de sanidad militar. Se realizo un estudio de tipo exploratorio - descriptivo con enfoque cuantitativo, en busca de identificar las causas de la baja participación ...

  1. Factores que promueven la utilización del E-commerce como medio de negociación comercial en las agencias de viaje y turismo en el distrito de San Miguel

    OpenAIRE

    Guerrero Sánchez, Julissa Jimena

    2011-01-01

    Objetivo: Determinar los factores que promueven la utilización del E- commerce, orientados en la implementación de páginas web, como medio de negociación comercial en las PYMES del sector turístico (agencias de viaje y turismo) el distrito de San Miguel. Método: Investigación exploratoria cualitativa, uso de entrevistas a profundidad, guía de observación y revisión documental. Se utilizó una muestra de 5 pequeñas y medianas empresas del sector turístico del distrito de San Miguel. Resultados:...

  2. Infecciones de vías urinarias como factor de riesgo en embarazadas multíparas del centro de salud Siete de Octubre del cantón Quevedo, Ecuador

    OpenAIRE

    Miranda Limachi, Keila Ester; Profesor Asociado, Directora de Investigación Facultad de Ciencias de la Salud, Universidad Peruana Unión. Lima

    2017-01-01

    Objetivo: Identificar los principales factores de riesgo de la infección de las vías urinarias en las embarazadas multíparas, y determinar la correlación entre las infecciones de vías urinarias y las complicaciones en las embarazadas. Materiales y Métodos: El método utilizado fue descriptivo transversal. La población comprendida por 436 mujeres embarazadas, del centro de salud “Siete de Octubre”, dando como muestra luego de aplicar la fórmula de probabilidad con un 5% de error de 204 paciente...

  3. Uma revisão sobre depressão como fator de risco na Doença de Parkinson e seu impacto na cognição Revisión sobre la depressión como factor de riesgo en el Mal de Parkinson e impacto sobre la cognición A review of depression as a risk factor in Parkinson's disease and the impact on cognition

    Directory of Open Access Journals (Sweden)

    Cláudia Débora Silberman

    2004-04-01

    utilizem critérios diagnósticos definidos e com amostras representativas da população podem trazer esclarecimento sobre o assunto.OBJETIVOS: Este trabajo tiene dos objetivos: 1 Examinar el impacto de la depresión sobre la cognición en el Mal de Parkinson (MP. 2 Examinar el papel de la depresión como factor de riesgo tanto para el MP como para trastorno cognoscitivo en el MP. METODOLOGÍA: Revisión de la literatura internacional (Medline, de artículos clínicos, seccionales, prospectivos y de caso control evaluando la función cognoscitiva de Parkinsonianos con y sin depresión, entre 1967 y 2003. Palabras clave: Mal de Parkinson, Depresión y Cognición. RESULTADOS: Los trabajos sobre el impacto de la depresión en la cognición de parkinsonianos presentan afirmaciones divergentes. Cinco artículos concluyen que hay impacto e cuatro no confirman esos datos. Puede afirmarse que la depresión es un factor de riesgos para MP así como el MP es un factor de riesgo para la depresión. No en tanto, ninguna definición fue posible en lo que se refiere a la depresión como factor de riesgo para trastornos cognoscitivos en parkinsonianos. Se observa que los datos sobre a prevalencia de la depresión y déficit cognoscitivo en el MP son inconclusivos con grande margen porcentual entre los autores. La depresión en parkinsonianos está asociada con el avance de la gravedad del MP, estado avanzado de Hoehn y Yahr, puntuación alta en la Unified Parkinson's Disease Rating Scale (UPDRS ocurrencia de caídas, baja puntuación en el Mini Examen del Estado Mental (MEEM y en la escala de Schwab y England, déficit cognoscitivo, bradykinesia axial, alteraciones en el caminar y en el balance, edad más avanzada, sexo femenino y presencia de alteración del pensamiento. CONCLUSIÓN: La interacción entre la depresión y MP es compleja y bi-direccional. La depresión es un factor de riesgo para MP así como MP es un factor de riesgo para la depresión. Es imposible trazar un perfil mas

  4. Malnutrition as a risk factor for the development of pressure ulcers Desnutrición como factor de riesgo para el desarrollo de las úlceras por presión Desnutrição como fator de risco para o desenvolvimento de úlceras por pressão

    Directory of Open Access Journals (Sweden)

    Letícia Faria Serpa

    2008-01-01

    Full Text Available Malnutrition - as a fundamental aspect both in genesis as in healing of pressure ulcers - is the object of this update paper. Countless studies point out that malnutrition, immune function alterations, hypoalbuminemia, low hemoglobin levels, as well as low diet intake, as responsible for an increase in the risk of developing these lesions. Therefore, it is essential to include the assessment of the nutrition status - monitoring of the calorie-protein intake and the difficulties to use the nutrients - in the prevention and treatment protocols of this type of chronic wound.La desnutrición - como aspecto fundamental en la génesis y cicatrización de las úlceras por presión (UP - es el tema de esta atualización. Muchos estudios destacan la desnutrición, los cambios del funcionamiento imunológico, la hipoalbuminemia, los bajos niveles de hemoglobina así como la baja aceptación alimentaria como los responsables del aumento del riesgo para el desarrollo de las UP. En conclusión, es fundamental incluir la evaluación del estado nutricional en los protocolos de prevención y tratamiento de las UP. Esa evaluación debe incluir medidas objetivas, seguimiento de la ingestión calórica y protéica y además de las dificultades para el aprovechamiento de los nutrientes.A desnutrição - como aspecto fundamental tanto na gênese como na cicatrização das úlceras por pressão - é objeto deste artigo de atualização. Inúmeros estudos salientam a desnutrição, alterações da função imune, hipoalbuminemia, níveis baixos de hemoglobina bem como a baixa aceitação dietética como responsáveis por aumentar o risco para o desenvolvimento dessas lesões. É, portanto, fundamental incluir a avaliação do estado nutricional - monitorização da ingestão calórico-protéica e das dificuldades para o aproveitamento dos nutrientes nos protocolos de prevenção e tratamento desse tipo de ferida crônica.

  5. The visualization and analysis of urban facility pois using network kernel density estimation constrained by multi-factors

    Directory of Open Access Journals (Sweden)

    Wenhao Yu

    Full Text Available The urban facility, one of the most important service providers is usually represented by sets of points in GIS applications using POI (Point of Interest model associated with certain human social activities. The knowledge about distribution intensity and pattern of facility POIs is of great significance in spatial analysis, including urban planning, business location choosing and social recommendations. Kernel Density Estimation (KDE, an efficient spatial statistics tool for facilitating the processes above, plays an important role in spatial density evaluation, because KDE method considers the decay impact of services and allows the enrichment of the information from a very simple input scatter plot to a smooth output density surface. However, the traditional KDE is mainly based on the Euclidean distance, ignoring the fact that in urban street network the service function of POI is carried out over a network-constrained structure, rather than in a Euclidean continuous space. Aiming at this question, this study proposes a computational method of KDE on a network and adopts a new visualization method by using 3-D "wall" surface. Some real conditional factors are also taken into account in this study, such as traffic capacity, road direction and facility difference. In practical works the proposed method is implemented in real POI data in Shenzhen city, China to depict the distribution characteristic of services under impacts of multi-factors.

  6. Risk factors for computer visual syndrome (CVS) among operators of two call centers in São Paulo, Brazil.

    Science.gov (United States)

    Sa, Eduardo Costa; Ferreira Junior, Mario; Rocha, Lys Esther

    2012-01-01

    The aims of this study were to investigate work conditions, to estimate the prevalence and to describe risk factors associated with Computer Vision Syndrome among two call centers' operators in São Paulo (n = 476). The methods include a quantitative cross-sectional observational study and an ergonomic work analysis, using work observation, interviews and questionnaires. The case definition was the presence of one or more specific ocular symptoms answered as always, often or sometimes. The multiple logistic regression model, were created using the stepwise forward likelihood method and remained the variables with levels below 5% (p vision (43.5%). The prevalence of Computer Vision Syndrome was 54.6%. Associations verified were: being female (OR 2.6, 95% CI 1.6 to 4.1), lack of recognition at work (OR 1.4, 95% CI 1.1 to 1.8), organization of work in call center (OR 1.4, 95% CI 1.1 to 1.7) and high demand at work (OR 1.1, 95% CI 1.0 to 1.3). The organization and psychosocial factors at work should be included in prevention programs of visual syndrome among call centers' operators.

  7. Development of human factors experimental evaluation techniques - Human factors design and evaluation of the main control room of atomic power plants using visual display terminals

    Energy Technology Data Exchange (ETDEWEB)

    Han, Sung Ho; Chung, Min Kyun; Choi, Kyung Lim; Song, Young Woong; Eoh, Hong Joon; Lee, In Suk; Kim, Bom Soo; Yeo, Yun Shin; Lee, Haeo Sun [Pohang University of Science and Technology, Pohang (Korea, Republic of)

    1995-07-01

    This study was conducted to build a prototype of the operator interface on a visual display terminal, and to provide a framework for using and applying prototyping techniques. A typical subsystem of an MCR was prototyped and validated by operator testing. Lessons learned during the development as well as prototyping techniques were described in this report for an efficient development. In addition, human factors experimental plans were surveyed and summarized for evaluating new design alternatives as well as the current design of the operator interface. The major results of this study are listed as follow: A method for designing an operator interface prototype on a VDT, A prototype of the operator interface of a typical subsystem, Guidelines for applying prototyping techniques, Characteristics and major considerations of experimental plans, Guidelines for applying prototyping techniques, Characteristics and major considerations of experimental plans, Guidelines for analyzing experimental data, A paradigm for human factors experimentation including experimental designs, procedures, and data analyses. 27 refs., 60 tabs., 47 figs. (author)

  8. Idade como fator prognóstico no câncer de mama em estádio inicial Edad como factor pronóstico en el cáncer de mama en fase inicial Age as a prognostic factor in early breast cancer

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    Bernardo Garicochea

    2009-04-01

    Full Text Available OBJETIVO: Analisar a idade como fator prognóstico no câncer de mama em estádio clínico inicial. MÉTODOS: Estudo retrospectivo que analisou as características clínicas e a sobrevida livre de doença de 280 pacientes entre 25 e 81 anos com câncer de mama estágio clínico I e II com acompanhamento em hospital de Porto Alegre (RS, de 1995 a 2000. Dados clínicos, patológicos, tratamento e desfechos foram extraídos dos prontuários das pacientes. As pacientes foram divididas em dois grupos conforme a idade ao diagnóstico (40 anos. Os dois grupos foram comparados quanto ao estágio clínico, histologia, expressão de receptores hormonais, terapia e radioterapia utilizando o teste qui-quadrado e/ou exato de Fisher e para análise de sobrevida, o teste de long-rank e método de Kaplan-Meier. RESULTADOS: Do total de 280 mulheres estudadas, 54 (19,3% tinham até 40 anos de idade. Ambos os grupos de pacientes eram similares em estágio clínico, histologia e expressão de receptores hormonais. A proporção de pacientes com sobrevida livre de doença em seguimento de 56 meses foi significativamente maior nas pacientes acima de 40 anos (84% versus 70%. Proporcionalmente, as pacientes mais jovens receberam mais terapia adjuvante (88,8% versus 77,8%. Houve diferença significativa na probabilidade das mulheres acima de 40 anos de permanecerem livre de doença (84%, sendo mais evidente quando comparadas às pacientes com OBJETIVO: Analizar la edad como factor pronóstico en el cáncer de mama en fase clínico inicial. MÉTODOS: Estudio retrospectivo que analizó las características clínicas y la sobrevida libre de enfermedad de 280 pacientes entre 25 y 81 años con cáncer de mama fase clínica I y II con acompañamiento en hospital de Porto Alegre (Sur de Brasil, de 1995 a 2000. Datos clínicos, patológicos, tratamiento y resultados fueron extraídos de los prontuarios de las pacientes. Las pacientes fueron divididas en dos grupos conforme la

  9. Las redes como un factor relevante en el desarrollo de la Resiliencia y la Calidad de vida en los adultos mayores

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    Eugenio Saavedra

    2014-12-01

    Full Text Available En la ciudad de Curicó, Séptima Región de Chile, se trabajó con un grupo de 82 adultos mayores, con la finalidad de describir sus niveles de calidad de vida auto percibidos y desarrollar un perfil de resiliencia. Los sujetos encuestados pertenecían al nivel socioeconómico bajo, de ambos sexos, con un promedio de edad cercano a los 71 años. Se administraron dos pruebas para obtener la información, a saber, la Escala de Resiliencia para Adultos SV-RES (Saavedra y Villalta, 2008 compuesta por 60 ítems divididos en 12 dimensiones y la Escala de Calidad de Vida (Varas, 2010 con 30 ítems.   El análisis de los resultados arroja un nivel de resiliencia cercano al promedio de la población, en tanto al comparar aquellos que asisten a talleres o grupos y aquellos que no asisten, se presentan fuertes diferencias tanto en la resiliencia, como también en la calidad de vida. Existe una correlación positiva entre la resiliencia y la calidad de vida, demostrando la asociación entre ambos aspectos. Se construye un perfil general de resiliencia y se comparan los resultados por sexo.   Se llevó a cabo un análisis en torno a la relevancia en pertenecer a grupos o tener una red en esta etapa de la vida y cómo aquello tiene un impacto positivo en la vida de estos adultos mayores. Lo antes expuesto, resultará de gran importancia al momento de diseñar programas de sociales e intervención y establecer fundamentos para la elaboración de políticas en torno a esta realidad.

  10. La biblioteca pública como factor de aprovechamiento popular de las leyes de transparencia y acceso a la información pública

    OpenAIRE

    Bonilla-Núñez, Samuel; Rodríguez-García, Beatriz-Elena

    2006-01-01

    The aim of this document ("The public library as a determinant factor for the people's utilization (use, usefulness N.Tr.)of the laws of transparency and access to public information") is to present a proposal that allows to assess the participation of public libraries as a determinant factor for the people's utilization (use, usefulness, N.Tr.) of the laws of transparency and access to the public information in Mexico. The results of more than three years of experience on the subject are pre...

  11. ¿Puede el ejercicio físico moderado durante el embarazo actuar como un factor de prevención de la Diabetes Gestacional? (Can moderate physical exercise during pregnancy act as a factor in preventing Gestational Diabetes?

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    Yaiza Cordero Rodríguez

    2012-01-01

    con una frecuencia de tres sesiones semanales. Nuestros resultados muestran que grupo de tratamiento presentó una menor ganancia de peso materno que en el de control (12.820±3.682 gr y 14.780±3.427 gr respectivamente, p=0,03, los valores en el Test de O´Sullivan (sobrecarga oral de glucosa fueron inferiores en el grupo de tratamiento que en el de control 102,9±17,7 gr/dL vs 125,6±30,8 gr/dL respectivamente, p=0,002. No se diagnosticó ningún caso de DG en el grupo de tratamiento mientras que en el grupo de control se diagnosticaron 2 casos. El ejercicio físico desarrollado durante el embarazo reduce la ganancia de peso materno, los valores del Test de O’Sullivan y actúa aparentemente como un factor de prevención de la DG.

  12. Prevalence and risk factors of visual impairment and blindness in Korea: the Fourth Korea National Health and Nutrition Examination Survey in 2008-2010.

    Science.gov (United States)

    Rim, Tyler H T; Nam, Jae S; Choi, Moonjung; Lee, Sung C; Lee, Christopher S

    2014-06-01

    To describe the age, gender specific prevalence and risk factors of visual impairment and blindness in Korea. From 2008 to 2010, a total 14 924 randomly selected national representative participants of the Korea National Health and Nutrition Examination Survey underwent additional ophthalmologic examinations by the Korean Ophthalmologic Society. Best Corrected Distance Visual Acuity was measured using an international standard vision chart based on Snellen scale (Jin's vision chart). Independent risk factors for visual impairment were investigated using multivariate logistic regression analysis. The overall prevalence of visual impairment (≤20/40) of adults 40 years and older was 4.1% (95% CI, 3.6-4.6) based on the better seeing eye. The overall prevalence of blindness (≤20/200) for adults 40 years and older was 0.2% (95% CI, 0.1-0.3). Risk indicators of visual impairment were increasing age, low education status, living in rural area, being unemployed, being without spouse and the absence of private health insurance. The visually impaired were more likely to have eye diseases compared with the normal subjects, and they were less likely to utilize eye care. The prevalence of visual impairment was demonstrated to be higher while that of blindness was similar to previous population studies in Asia or U.S. Sociodemographic disparities are present in the prevalence of visual impairment and more targeted efforts are needed to promote vision screening in high risk groups. © 2014 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

  13. Risk factors for predicting visual field progression in Chinese patients with primary open-angle glaucoma: A retrospective study.

    Science.gov (United States)

    Hung, Kuo-Hsuan; Cheng, Ching-Yu; Liu, Catherine Jui-Ling

    2015-07-01

    Glaucoma is a leading cause of irreversible blindness worldwide. It is characterized by progressive deterioration of the visual field (VF) that results in a complete loss of vision. This study aimed to determine the risk factors associated with VF progression in Chinese patients with primary open-angle glaucoma (POAG). We reviewed the charts of POAG patients who visited our clinic between July 2009 and June 2010. We included patients with five or more reliable VF tests using the Humphrey Field Analyzer (Humphrey Instruments, San Leandro, CA, USA) during a period of at least 2 years. The scoring system of the Collaborative Initial Glaucoma Treatment Study (CIGTS) was used to code the VF. Progression was defined as an increasing score ≥3, compared to the averaged baseline data. Univariate and multivariate logistic regression analyses were performed to identify the risk factors of VF progression. There were 92 patients (representing 92 eyes) with an average of 8.9 reliable VFs over a mean follow up of 5.4 years. Multivariate logistic regression showed that eyes with more VF tests [odds ratio (OR) = 1.500, p < 0.010] and either increased peak intraocular pressure (IOP) (OR = 1.235, p = 0.044) or a wide IOP range (OR = 1.165, p = 0.041) favored VF progression. High myopia (less than -6.0 D) was not a risk factor (OR = 1.289, p = 0.698) for VF progression in this study. In addition to a greater number of VF tests, Chinese patients with treated POAG who experienced a high peak IOP or a wide range of IOP during follow up were more likely to have VF deterioration. Copyright © 2015. Published by Elsevier Taiwan.

  14. Tecnologia Acessível: reflexões sobre a utilização de recursos tecnológicos sonoros como acessibilidade aos textos literários para o aprendiz com deficiência visual

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    Ivan Vale de Sousa

    2015-03-01

    Full Text Available This paper presents a reflection on sound technological features such as accessibility to literary texts to people with visual disabilities. Address the importance of technology; discuss the possibilities of access to information and evidence the same learning situations for students with and without disabilities are goals of this proposal. Characterized bibliographicreflective nature, this production sees Dosvox Operating System and Program MecDaisy as educational assistive technology resources as well as the Braille system. The theoretical and reflective reasoning is based on contributions from authors such as, Lira (2004, Sonza (2004, Delpizzo (2005, Barbosa (2010 and others who argue and discuss about the accessibility of literary knowledge. Thus, it is expected that the subject contributes reflective process in supply and familiarity with the literature for visually impaired students in learning situations mediated by sound and technological resources available in the regular school.

  15. A PROBLEMATIZAÇÃO COMO POSSIBILIDADE AVALIATIVA EM ARTES VISUAIS: APONTAMENTOS A PARTIR DE UMA PERSPECTIVA PÓS-MODERNA / Questioning as an evaluative possibility in visual arts: notes from a post-modern perspective

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    Marilda Oliveira de Oliveira

    2014-09-01

    Full Text Available Propusemo-nos a pensar, neste artigo, sobre o cenário contemporâneo e a produção de subjetividades, elencando a partir disso alguns pontos que nos incitaram a trazer a problematização como possibilidade avaliativa. A partir de Bauman (2007, Veiga Neto (2002 e Agamben (2009 traçamos as linhas que compõem o espaço e o tempo contemporâneo, e a partir de Guattari e Rolnik (2010 pensamos a produção das subjetividades nesse contexto. A avaliação de modo geral e a avaliação em artes visuais em particular são mapeadas a partir de autores como Sacristán (1998, Zabala (1998, Pimentel (2009 e Tourinho (2010. A partir de Deleuze (1988-1989, 1999, e Foucault (2004, pensamos o conceito de problematização, esboçando possibilidades para pensar a avaliação e a própria educação na contemporaneidade. Palavras-chave: Avaliação. Contemporaneidade. Problematização.

  16. Escala de riesgo Aristóteles como factor predictor de mortalidad en el cierre quirúrgico de persistencia de ductus arterioso en prematuros

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    Antonio Jimenez-Aceituna

    2017-07-01

    Conclusiones: La mortalidad asociada al cierre quirúrgico del ductus persistente depende más del estado de prematuridad que de la cirugía, siendo la escala Aristóteles el factor más útil para determinar el grado de prematuridad y predecir la mortalidad hospitalaria. Los prematuros con 15 o más puntos en esta escala tuvieron una mayor mortalidad, para los que se propone un manejo conservador.

  17. Hoy como ayer

    OpenAIRE

    Rodríguez M.

    2010-01-01

    Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la sit...

  18. La razonabilidad como virtud

    OpenAIRE

    Muñoz Oliveira, Luis Humberto

    2008-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Esta tesis doctoral explora la idea de que la razonabilidad es una virtud fundamental para que las sociedades plurales puedan convertirse en, o mantenerse como, un sistema de cooperación donde la justicia sea posible. La hipótesis central es que la razonabilidad como virtud es una manera de ser tolerante de forma solidaria, es entender al conciudadano, escucharlo, saber que juntos acordaron las reglas de cooperación y ac...

  19. Viscosidade como fator frenador de rotações II: estudos com carboximetilcelulose Viscoelastic substances as a breaking factor of ocular rotations II: studies with carboxymethylcellulose

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    André Augusto Homsi Jorge

    2006-02-01

    Full Text Available OBJETIVO: Determinar se forças de atrito viscoso podem, sob o ponto de vista quantitativo, agir como possíveis promotoras de estabilização ocular com manutenção dos movimentos rotacionais, dando noção dos valores necessários para a aplicabilidade no sistema ocular. MÉTODOS: Um modelo mecânico foi elaborado para a medida de forças necessárias para vencer o atrito de uma esfera de alumínio parcialmente mergulhada em um líquido viscoso. Foram testadas soluções de carboximetilcelulose de 1% a 6% (com variação de 0,5%. Outra variável foi a área de contato entre a esfera e o líquido viscoso. RESULTADOS: A força encontrada, após correções e descontos apropriados, foi significativa (acima de 5 gf nas soluções de carboximetilcelulose a partir de 3,5% na maior área de contato (587,8 mm², nas soluções de carboximetilcelulose a partir de 4,5% na área intermediária (335,9 mm², nas soluções de carboximetilcelulose a 5,5% e 6,0% na menor área (167,9 mm². CONCLUSÃO: Alguns dos líquidos viscosos testados aparentemente são capazes de obter força de atrito suficiente para a estabilização ocular, com destaque para as soluções de carboximetilcelulose a 5,5% e 6,0% que obtiveram bons resultados na menor área de contato.PURPOSE: From a quantitative point of view, to determine if the viscous friction forces could act as possible promoters of ocular stabilization keeping the rotational movements, which would provide the necessary values to be used in the ocular system. METHODS: A mechanical model was created to measure the necessary forces to overcome the friction of an alluminum sphere partially kept in a viscous liquid. Solutions of carboxymethylcellulose from 1.0% to 6.0% (with a variation of 0.5% were used. Another variant to be considered was the area of contact between the sphere and the viscous liquid. RESULTS: After appropriate corrections and discounts a meaningful force (over 5 gf was found in the solutions of

  20. O uso do teste de escape do balonete como fator preditor de laringoespasmo The use of the cuff leak test as a factor to predict laryngospasm

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    Lucas Montano Paternostro Saback

    2008-03-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: O desmame da ventilação mecânica é um desafio na prática da unidade de terapia intensiva (UTI e está relacionado a diversas complicações. Uma dessas complicações relaciona-se ao laringoespasmo pós-extubação, evento que muitas vezes pode ser previsto através do teste de escape do balonete (TEB. O objetivo deste estudo foi demonstrar que o TEB é um método simples, confiável e de baixo custo para avaliar o grau de obstrução de via aérea superior em pacientes no processo de desmame da ventilação mecânica. CONTEÚDO: Foi realizada revisão sistemática da literatura através das bases de dados MedLine, SciElo e LILACS com publicações entre 1995 e 2007. Os artigos incluídos abordaram o uso do teste do balonete como índice preditivo para laringoespasmo e falha na extubação traqueal. Não fizeram parte estudos com animais e revisões bibliográficas. Procurou-se relacionar o TEB com tempo de ventilação mecânica, idade e grupos específicos de pacientes que se beneficiaram com a técnica. CONCUSÕES: O TEB pode ser considerado bom índice preditivo para identificar a presença de laringoespasmo pós-extubação, quando levadas em consideração as características da população estudada.BACKGROUND AND OBJECTIVES: Weaning patients from mechanical ventilation is a challenge in the intensive care unit (ICU practice and is related to some complications. One of these is the pos-extubation laryngospasm, an event that can be anticipated for the cuff leak test (CLT. The objective was demonstrate that the CLT is a simple, reliable and low costs method to available the presence of obstruction in high airway in patients under weaning ventilator. CONTENTS: It was made a systematic review in databases MedLine, SciElo and LILACS with articles from 1995 to 2007. The selected studies focused the use of the CLT to predict laryngospasm and extubation failure. It was excluded studies with animals and others

  1. El Análisis de Covarianza como Mecanismo de Control de Factores de Confusión / Analysis of Covariance as a Methodology to Control Confounding Variables

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    Correa Londoño Guillermo

    2013-08-01

    Full Text Available Resumen. Parte de la variabilidad total en un estudio experimental puede explicarse por factores que son asignados y/o controlados por el investigador y que son de interés primario para este. Asimismo, los experimentos suelen involucrar factores que a pesar de su carácter secundario también afectan la respuesta. El mecanismo más comúnmente usado para controlar el efecto de factores secundarios es el bloqueo. Existen, sin embargo, situaciones en las que la fuente de variación secundaria solamente se reconoce tras haberse iniciado el experimento y/o en las que sus niveles no configuran categorías que permitan agrupar unidades experimentales homogéneas; en tales casos, podría considerarse la utilización de covariables para satisfacer los mismos objetivos que el bloqueo. Para aplicar una adecuada corrección mediante análisis de covarianza deben satisfacerse dos condiciones: la viabilidad y la pertinencia. La viabilidad se refiere a la posibilidad de explicar parte de la variabilidad de la respuesta en función de la covariable, mediante un modelo de regresión. La pertinencia tiene que ver con la adecuación de la corrección aplicada, considerando que al eliminar el efecto de la covariable no se arrastre parte del efecto de los tratamientos. La viabilidad suele evaluarse con apoyo de algún programa estadístico; la pertinencia, por su parte, exige una aproximación conceptual. / Abstract. Some portion of the total variability in an experimental study can be explained by factors that are controlled and/or assigned by the researcher, and that are of his primary interest. Likewise, experiments usually involve factors that, despite their ancillary nature, also affect the response. Blocking is the most widely used mechanism to control the effect of ancillary factors. There are, however, situations in which the secondary source of variation is recognized only after the experiment has been started and/or in which its levels don’t allow to

  2. La historia familiar y la conducta de consumo de alcohol como factor sociocultural en el adolescente. Perspectiva de enfermería

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    Nora Angélica Armendáriz-García

    2015-01-01

    Full Text Available Los adolescentes con mayor probabilidad de presentar la conducta de consumo de alcohol son los que están sometidos a diferentes factores de riesgo, los cuales pueden ser personales; dentro de estos factores se encuentra la historia familiar de consumo de alcohol (HFCA. Objetivo: establecer las diferencias y la relación entre el factor personal sociocultural a través de la HFCA y la conducta no sa- ludable de consumo de alcohol en adolescentes de preparatoria del Estado de Nuevo León. Materiales y métodos: estudio descriptivo correlacional, la población estuvo conformada por 743 adolescentes de preparatoria, la muestra fue de 240, con un poder del 90 % . Mues- treo aleatorio estratificado con asignación proporcional al tamaño del estrato. Dentro de cada estrato se empleó muestreo aleatorio por conglomerados unietápicos. Los instrumentos empleados fueron el Inventario de HFCA y el Cuestionario de Identificación de los Trastor- nos debidos al Consumo de Alcohol. Resultados: los adolescentes con HFCA positiva fueron quienes presentaron mayores prevalencias de conducta no saludable (consumo de alcohol; asimismo, el tipo de consumo de alcohol dependiente y dañino presentó esta misma tendencia observándose diferencias estadísticamente significativas (p < 0,05. Cuando se analiza la conducta de consumo de alcohol en los adolescentes se identificó una relación positiva y significativa ( r s = 0,196, p < 0,01, lo que indica que a mayor consumo de alcohol por parte de los padres, se presenta un mayor consumo por parte del hijo adolescente.

  3. La industria petrolera como factor de cambios territoriales en la economía nacional, a partir de los años setenta

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    María Teresa Sánchez Salazar

    1990-01-01

    Full Text Available Since the end of severity´s petroleum industry has become the basis of mexican economy and its crucial role in the organization of regional and national space is unquestionable. The petroleum bloom developed during this period has originated a succesion of complex and intimately correlated territorial changes, showing qualitative differences according to the spatial level analysed. In this paper, the main processes of territorial change presented in ancient and new petroleum spaces since the seventy´s bloom are studied and the role of petroleum industry as a factor of regional development is also pointed out.

  4. La hipertensión y la obesidad en el niño como factores potenciales de riesgo aterosclerótico en el adulto joven

    OpenAIRE

    Carballo Martínez, Rosario; Bosch Salado, Celia; Piñeiro Lamas, Regino; Durán Almenares, Alfredo; Fernández-Britto Rodríguez, José E

    1998-01-01

    Se estudian 320 niños y adolescentes obesos, provenientes de las consultas de Endocrinología y Nutrición del Hospital Docente Pediátrico del Cerro, en edades comprendidas entre 11 y 14 años con el propósito de comprobar la eventual relación existente entre hipertensión arterial y obesidad exógena, ambas conocidos factores de riesgo aterogénico. En todos se midió la tensión arterial (TA) según normas establecidas internacionalmente y se relacionaron con un grupo de igual edad y sexo cuyo peso ...

  5. Evaluación de los factores epidemiológicos como predictores de los resultados postquirúrgicos en patología lumbar degenerativa

    OpenAIRE

    Lozano Álvarez, Carlos

    2011-01-01

    Els resultats del tractament quirúrgic per dolor lumbar crònic i patologia degenerativa lumbar, patologies d'elevada prevalença i despesa sanitària, estan afectats per múltiples factors. En aquest treball hem estudiat com les característiques epidemiològiques dels pacients de la nostra població influeixen sobre el canvi de la qualitat de vida, la discapacitat i el dolor després de cirurgies per patologia lumbar degenerativa. Del nostre estudi, d'acord amb la revisió realitzada de la literatur...

  6. El compromiso y la confianza como factores incentivadores de la transmisión del conocimiento tácito dentro de la organización

    OpenAIRE

    Juárez Ibarra, Manuel; Trevilla Cantero, Celina

    2008-01-01

    La transmisión del conocimiento es un elemento clave para la generación de ventajas competitivas sostenibles, y dentro de la literatura se reconoce que la motivación extrínseca no es suficiente para lograr una transmisión voluntaria de conocimiento entre individuos y equipos de trabajo. En el presente artículo se destacan dos factores claves para conseguir que los empleados intercambien voluntariamente su conocimiento entre sí: el compromiso y la confianza –incluidos en la motivación intrínse...

  7. Los factores psicosociales como impacto en el bajo rendimiento escolar de los estudiantes de la Universidad Autónoma de Guerrero

    OpenAIRE

    Guadalupe Godínez Alarcón; Joaquín Reyes Añorve; María del Rocío García Sánchez; Timoteo Antúnez Salgado

    2016-01-01

    Con el objetivo de analizar las conductas psicosociales que ocasionan el bajo rendimiento escolar en las unidades académicas de psicología, derecho, sociología, economía y enfermería N° 2, se hizo un estudio en los educandos de nivel superior de la Universidad Autónoma de Guerrero (UAGro). Para ello se aplicó principalmente a educandos del sexto semestre de las cinco licenciaturas de la UAGro. un cuestionario. Los resultados permitieron descubrir que los principales factores qu...

  8. Long-Term Visual Outcomes for a Treat and Extend Anti-Vascular Endothelial Growth Factor Regimen in Eyes with Neovascular Age-Related Macular Degeneration

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    Sarah Mrejen

    2015-07-01

    Full Text Available With the advent of anti-vascular endothelial growth factor (VEGF therapy, clinicians are now focused on various treatment strategies to better control neovascular age-related macular degeneration (NVAMD, a leading cause of irreversible blindness. Herein, we retrospectively reviewed consecutive patients with treatment-naïve NVAMD initially classified based on fluorescein angiography (FA alone or with an anatomic classification utilizing both FA and optical coherence tomography (OCT and correlated long-term visual outcomes of these patients treated with an anti-VEGF Treat-and-Extend Regimen (TER with baseline characteristics including neovascular phenotype. Overall, 185 patients (210 eyes were followed over an average of 3.5 years (range 1–6.6 with a retention rate of 62.9%, and visual acuity significantly improved with a TER that required a mean number of 8.3 (±1.6 (± standard deviation intravitreal anti-VEGF injections/year (range 4–13. The number of injections and the anatomic classification were independent predictors of visual acuity at 6 months, 1, 2, 3 and 4 years. Patients with Type 1 neovascularization had better visual outcomes and received more injections than the other neovascular subtypes. There were no serious adverse events. A TER provided sustained long-term visual gains. Eyes with Type 1 neovascularization had better visual outcomes than those with other neovascular subtypes.

  9. Cesárea prévia como fator de risco para o descolamento prematuro da placenta Previous cesarean section as a risk factor for abruptio placentae

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    Fábio Roberto Cabar

    2004-10-01

    Full Text Available OBJETIVO: investigar a relação entre o antecedente de cesárea e a ocorrência do descolamento prematuro da placenta (DPP. MÉTODOS: estudo retrospectivo em que foram avaliados os dados referentes a 6495 partos realizados no período entre abril de 2001 e janeiro de 2004. Foram adotados como critérios de inclusão: diagnóstico de DPP confirmado por exame da placenta após o parto, gestação única, peso do recém-nascido superior a 500 g e idade gestacional acima de 22 semanas e ausência de história de trauma abdominal na gestação atual. Para cada caso de DPP incluído no estudo foram selecionados cinco controles, obedecendo ao seguinte pareamento: paridade, idade gestacional (30 semanas, diagnóstico materno de síndrome hipertensiva na gestação índice, antecedente de cicatriz uterina prévia não relacionada à operação cesariana, diagnóstico de rotura prematura de membranas ou diagnóstico de polidrâmnio. A análise univariada das variáveis contínuas foi realizada utilizando-se o teste t de Student e as variáveis categóricas foram avaliadas por meio de teste exato de Fisher ou teste de chi2, com níveis descritivos (p menores que 0,05 considerados significantes. RESULTADOS: 34 casos de pacientes com diagnóstico de DPP preencheram os critérios de inclusão (incidência de 0,52%. Para o grupo controle foram selecionadas 170 pacientes que obedeceram aos critérios de pareamento propostos. No grupo de pacientes com DPP, 26,5% apresentavam antecedente de parto cesárea (9 casos, ao passo que, no grupo controle, esse antecedente foi observado em 21,2% das pacientes (36 casos. Não houve diferença estatisticamente significativa na incidência de cesárea prévia entre os dois grupos estudados (p=0,65, OR=1,34, IC 95%=0,53-3,34. CONCLUSÃO: o aspecto abordado neste estudo, isto é, a associação do DPP em pacientes com cicatriz uterina de cesárea, não pôde ser confirmado com a presente casuística.PURPOSE: to study the

  10. El patrimonio geológico de Marruecos: una potencialidad para el desarrollo de un turismo de salud, como factor de lucha contra la pobreza

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    Ezaidi, A.

    2007-01-01

    Full Text Available The whole Moroccan territory conceals a rich essentially thermal and mineral geological heritage. The exploitation of this national heritage to therapeutic ends can play an important economic and social role by the generation of jobs, especially in the arid and of the Sahara zones that endure the drought, the desertification and the emigration of the farming youngsters. It is in the setting of the call of the Chief of Staff of the united Nations inviting, in the declaration of the Millennium, the nations to contribute important way to the struggle against poverty and the extreme poverty, that we proposed, for these resource less surroundings, the tourism of health like an alternative of development associating the struggle against poverty and the lasting tourism. Our article also appears in the setting of the National Initiative for the Human Development (NIHD, placing the Moroccan citizen as finality of the develop-ment strategies and first factor and strength of this development

  11. How to ask about patient satisfaction? The visual analogue scale is less vulnerable to confounding factors and ceiling effect than a symmetric Likert scale.

    Science.gov (United States)

    Voutilainen, Ari; Pitkäaho, Taina; Kvist, Tarja; Vehviläinen-Julkunen, Katri

    2016-04-01

    To study the effects of scale type (visual analogue scale vs. Likert), item order (systematic vs. random), item non-response and patient-related characteristics (age, gender, subjective health, need for assistance with filling out the questionnaire and length of stay) on the results of patient satisfaction surveys. Although patient satisfaction is one of the most intensely studied issues in the health sciences, research information about the effects of possible instrument-related confounding factors on patient satisfaction surveys is scant. A quasi-experimental design was employed. A non-randomized sample of 150 surgical patients was gathered to minimize possible alterations in care quality. Data were collected in May-September 2014 from one tertiary hospital in Finland using the Revised Humane Caring Scale instrument. New versions of the instrument were created for the present purposes. In these versions, items were either in a visual analogue format or Likert-scaled, in systematic or random order. The data were analysed using an analysis of covariance and a paired samples t-test. The visual analogue scale items were less vulnerable to bias from confounding factors than were the Likert-scaled items. The visual analogue scale also avoided the ceiling effect better than Likert and the time needed to complete the visual analogue scale questionnaire was 28% shorter than that needed to complete the Likert-scaled questionnaire. The present results supported the use of visual analogue scale rather than Likert scaling in patient satisfaction surveys and stressed the need to account for as many potential confounding factors as possible. © 2015 John Wiley & Sons Ltd.

  12. Acoso escolar como factor limitante en la inclusión educativa de niños, niñas y jóvenes con trastornos del espectro autista

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    Maribel Uribarrí Vázquez

    2016-01-01

    Full Text Available Esta investigación tuvo como propósito analizar el acoso escolar como factor limitante en la inclusión educativa de niños, niñas y jóvenes con Trastornos del Espectro Autista (TEA. La sustentación teórica se basó en la doctrina de Delgado,  Serrano, Olweusy,  Roldan,  entre otros. El tipo de investigación fue cualitativo con  método fenomenológico a través de entrevistas a profundidad y notas de campo. La  selección de informantes clave fue de7 estudiantes con TEA  asistentes a escuelas regulares. Se concluye que el acoso escolar genera en alumnos con TEA, sentimientos de inadecuación e inadaptación que conllevan al  aislamiento,    exclusión social, resistencia y deserción escolar.

  13. Doença periodontal materna como fator associado ao baixo peso ao nascer Maternal periodontal disease as a factor associated with low birth weight

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    Simone Seixas da Cruz

    2005-10-01

    Full Text Available OBJETIVO: Estudos recentes têm apresentado evidências de que a doença periodontal em gestantes pode ser um dos determinantes do baixo peso ao nascer. Realizou-se estudo para verificar a existência de associação entre doença periodontal materna e baixo peso ao nascer. MÉTODOS: Estudo do tipo caso-controle com 302 mulheres, sendo 102 mães de nascidos vivos de baixo peso (grupo caso e 200 mães de nascidos vivos com peso normal (grupo controle. A existência de associação entre doença periodontal e baixo peso ao nascer foi avaliada mediante modelo multivariado de regressão logística, considerando outros fatores de risco para o baixo peso. RESULTADOS: Ambos os grupos de mães eram comparáveis no que se refere a idade, altura, peso pré-gestacional, tabagismo, alcoolismo, doenças prévias, estado civil, situação socioeconômica, número de escovações e uso de fio dental, número de refeições diárias, e visitas ao dentista. A doença periodontal foi diagnosticada em 57,8% das mães do grupo caso e 39,0% do grupo controle. A análise de regressão logística indicou associação positiva entre doença periodontal e baixo peso ao nascer (ORbruto=2,15; IC 95%: 1,32-3,48, especialmente entre as mães com escolaridade menor ou igual a quatro anos (ORajustada=3,98; IC 95%: 1,58-10,10. CONCLUSÕES: A doença periodontal é um possível fator de risco para o baixo peso ao nascer.OBJECTIVE: Recent studies have presented evidence that periodontal disease in pregnant women may be a determining factor for low birth weight. The present investigation was carried out to verify whether or not there is an association between maternal periodontal disease and low birth weight. METHODS: This was a case-control study on 302 women, of whom 102 were the mothers of live newborns of low weight (case group and 200 were the mothers of live newborns of normal birth weight (control group. The existence of an association between periodontal disease and low

  14. Evaluación de la marcha y el equilibrio como factor de riesgo en las caídas del anciano

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    Mayté Vera Sánchez

    2003-10-01

    Full Text Available Se realizó un estudio descriptivo en el que participaron 104 ancianos de un consultorio médico perteneciente al Policlínico Docente"Mario Escalona Reguera", a los cuales se les realizó una encuesta donde se evalúan varios parámetros relacionados con la marcha y el equilibrio, para determinar el riesgo de caídas según las variaciones encotradas. Se utilizó el método estadístico del Chi cuadrado para asociación de variables y el método porcentual. Encontramos que mientras más edad tienen los ancianos, más riesgo de caídas presentan y esto se relaciona con las alteraciones de la marcha y el equilibrio. Además, el riesgo de sufrir caídas fue más frecuente en el sexo femenino, y los factores de riesgo más frecuentes fueron la necesidad de usar los brazos para levantarse y sentarse, la necesidad del bastón para estar de pie, la marcha con talones separados y no levantar el pie completamente del suelo.A descriptive study of 104 older people from a physician´s office of "Mario Escalona Reguera" teaching polyclinics was performed. These aged persons were administered a survey to evaluate several parameters related to gait and balance, with the purpose of determining fall risks according to the variations found. Chi square statistical method for association of variables and the percentage method were used. We found that risk of falling increases with the age as a result of altered gait and balance. Besides, the risk of falling down was more common in females and the most frequent risk factors were the need of using arms to stand up and sit down and a stick to be on one´s feet, gait characterized by separated heels and not raising completely the feet when walking.

  15. Estudio de factores para la planificación de un curso de español como segunda lengua. Factors study for a spanish course a second language.

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    Álvarez Correa Adriana Del Socorro

    2009-01-01

    Full Text Available En Colombia hay más de 60 lenguas vivas entre lenguas indígenas, desde el creole de San Andrés hasta el palenquero. Esta es la base empírica para que el grupo de investigación Lengua y Cultura de la Escuela de Educación y Pedagogía de la Universidad Pontificia Bolivariana – UPB – de Medellín haya realizado el estudio “Transversalidad de la competencia intercultural en metodologías para el aprendizaje de la lengua materna y del español como segunda lengua”, con el fin de determinar la pertinencia y algunas características de un curso de español como segunda lengua (L2, dirigido a maestros indígenas colombianos, desde una perspectiva psicolingüística y sociocultural de la enseñanza y el aprendizaje de L2s en diseños curriculares abiertos y centrados en los alumnos. In Colombia there are more than sixty indigenous languages; which work as the source for the research “Transversalidad de la competencia intercultural en metodologías para el aprendizaje de la lengua materna y del español como segunda lengua” made by Lengua y Cultura Research Group to determine the importance and some characteristics of a Spanish course as a second language. This course is addressed for Colombian indigenous teachers with a sociolinguistic and socio-cultural point of view of learning and teaching second languages in student centered and opened curriculum.

  16. Avaliação de pisos táteis como elemento de wayfinding em escola de ensino especial para crianças com deficiência visual

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    Tania Pietzschke Abate

    Full Text Available Resumo Este artigo busca analisar a orientação espacial dos alunos com deficiência visual em escola de educação especial localizada na cidade de São Paulo antes e após a implantação de sinalização tátil no piso, importante elemento do sistema chamado wayfinding. Na primeira etapa da pesquisa (período entre outubro e dezembro de 2012, foram realizadas observações com os alunos (pré-escola e ensino fundamental com deficiência visual (cegueira e baixa visão para avaliação da orientação durante a circulação no edifício escolar. Após a reforma do piso existente em 2014, as autoras implantaram a sinalização tátil no piso (ABNT, 2004 na área de circulação e iniciaram a segunda etapa da pesquisa (período entre agosto e setembro de 2014, com novas observações. Foram consideradas as premissas adotadas para a definição da unidade estudo de caso e os critérios de escolha do instrumento de coleta de dados. Constatou-se que a implantação da sinalização tátil no piso nas áreas de circulação de alunos com deficiência visual requer familiarização com o uso, iniciada por meio de treinamento de orientação e mobilidade (O&M; disponibilização e aprendizado de uso concomitante do mapa tátil; adoção da bengala de rastreamento; escalonamento dos horários de intervalo das diferentes classes; definição de mãos de direção; segurança no trajeto e monitoramento.

  17. Examination of factors affecting gait properties in healthy older adults: focusing on knee extension strength, visual acuity, and knee joint pain.

    Science.gov (United States)

    Demura, Tomohiro; Demura, Shin-ichi; Uchiyama, Masanobu; Sugiura, Hiroki

    2014-01-01

    Gait properties change with age because of a decrease in lower limb strength and visual acuity or knee joint disorders. Gait changes commonly result from these combined factors. This study aimed to examine the effects of knee extension strength, visual acuity, and knee joint pain on gait properties of for 181 healthy female older adults (age: 76.1 (5.7) years). Walking speed, cadence, stance time, swing time, double support time, step length, step width, walking angle, and toe angle were selected as gait parameters. Knee extension strength was measured by isometric dynamometry; and decreased visual acuity and knee joint pain were evaluated by subjective judgment whether or not such factors created a hindrance during walking. Among older adults without vision problems and knee joint pain that affected walking, those with superior knee extension strength had significantly greater walking speed and step length than those with inferior knee extension strength (P pain in both knees showed slower walking speed and longer stance time and double support time. A decrease of knee extension strength and visual acuity and knee joint pain are factors affecting gait in the female older adults. Decreased knee extension strength and knee joint pain mainly affect respective distance and time parameters of the gait.

  18. UVB suscetibilidade como fator de risco para o desenvolvimento da hanseníase virchowiana UVB susceptibility as a risk factor to the development of lepromatous leprosy

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    Mecciene Mendes Rodrigues

    2010-12-01

    Full Text Available FUNDAMENTOS: A radiação ultravioleta B (RUVB é o mais importante fator ambiental capaz de modificar a função imunológica da pele humana. OBJETIVO: estudar a associação entre o fenótipo de suscetibilidade ou resistência à radiação RUVB e as formas polares da hanseníase. MATERIAL E MÉTODOS: foram avaliados 38 pacientes com hanseníase virchowiana (MHV e 87 pacientes com hanseníase tuberculoide (MHT de acordo com a classificação de Ridley e Jopling (1966. Todos os pacientes foram submetidos ao teste para determinação do fenótipo de suscetibilidade ou resistência à RUVB por meio da aplicação de um disco de dinitroclorobenzeno (DNCB a 2% em uma área de pele previamente irradiada com duas vezes a dose eritematosa mínima (DEM. Após 21 dias, outra aplicação de um disco similar de DNCB a 0,05% na região escapular (área não exposta à RUVB foi realizada para avaliar se houve sensibilização, com leitura após 48 horas. Os pacientes que apresentaram reação positiva ao DNCB foram considerados UVB-resistentes e o oposto foi considerado para aqueles que não apresentaram resposta (UVB-suscetíveis. RESULTADOS: A frequência de UVB-suscetíveis foi de 63,2% (24 pacientes no grupo MHV e 34,4% (30 pacientes no grupo MHT (OR = 3,26; IC = 1,36-7,87; x² = 7,73; p = 0,005. CONCLUSÃO: Os resultados sugerem que a UVB-suscetibilidade é um fator de risco para o desenvolvimento da MHV.BACKGROUNDS: Ultraviolet radiation B (UVRB is the most important environmental factor capable of altering the immune function of human skin. OBJECTIVE: To evaluate the association of the phenotypes of susceptibility or resistance to ultraviolet radiation B (UVRB and the polar forms of leprosy. MATERIAL AND METHODS: We evaluated 38 patients with lepromatous leprosy (LL and 87 patients with tuberculoid (TT leprosy, according to the classification by Ridley and Jopling (1966. All the patients were submitted to a test to determine the phenotypes of

  19. Cataract Surgery Visual Outcomes and Associated Risk Factors in Secondary Level Eye Care Centers of L V Prasad Eye Institute, India.

    Science.gov (United States)

    Matta, Sumathi; Park, Jiwon; Palamaner Subash Shantha, Ghanshyam; Khanna, Rohit C; Rao, Gullapalli N

    2016-01-01

    To evaluate cataract surgery visual outcomes and associated risk factors in rural secondary level eye care centers of L V Prasad Eye Institute (LVPEI), India. The Eye Health pyramid of LVPEI has a network of rural secondary care centres (SCs) and attached vision centres (VCs) that provide high quality comprehensive eye care with permanent infrastructure to the most disadvantaged sections of society. The most common procedure performed at SCs is cataract surgery. We audited the outcome of a random sample of 2,049 cataract surgeries done from October 2009-March 2010 at eight rural SCs. All patients received a comprehensive ophthalmic examination, both before and after surgery. The World Health Organization recommended cataract surgical record was used for data entry. Visual outcomes were measured at discharge, 1-3 weeks and 4-11 weeks follow up visits. Poor outcome was defined as best corrected visual acuity gender discrimination in terms of outcome continues to be an issue and needs further investigation.

  20. Early onset of organ failure is the best predictor of mortality in acute pancreatitis El fracaso orgánico precoz como mejor factor predictivo de mortalidad en la pancreatitis aguda

    Directory of Open Access Journals (Sweden)

    I. Poves Prim

    2004-10-01

    Full Text Available Background: APACHE II is a multifactorial scoring system for predicting severity in acute pancreatitis (AP. Organ failure (OF has been correlated with mortality in AP. Objectives: to evaluate the usefulness of APACHE II as an early predictor of severity in AP, its correlation with OF, and the relevance of an early establishment of OF during the course of AP. Patients and methods: from January 1999 to November 2001, 447 consecutive cases of AP were studied. APACHE II scores and Atlanta criteria were used for defining severity and OF. Results: twenty-five percent of patients had severe acute pancreatitis (SAP. APACHE II at 24 h after admission showed a sensitivity, specificity, and positive and negative predictive value of 52, 77, 46, and 84%, respectively, for predicting severity. Mortality for SAP was 20.5%. Seventy percent of patients who developed OF did so within the first 24 hours of admission, and their mortality was 52%. Mortality was statistically significant (p Introducción: el APACHE II se ha utilizado como factor predictivo de gravedad en la pancratitis aguda (PA. La instauración de fracaso orgánico (FO en la PA se correlaciona con una mayor mortalidad. Objetivos: evaluar la utilidad del APACHE II como factor predictivo precoz de gravedad en la PA, su correlación con el FO y la relevancia del establecimiento precoz del FO en la PA. Pacientes y métodos: desde enero de 1999 hasta noviembre de 2001 se estudiaron 447 pacientes ingresados consecutivamente por PA. Se utilizó el sistema APACHE II y los criterios de Atlanta para evaluar la gravedad. Resultados: el 25% de los pacientes presentaron una pancreatitis aguda grave (PAG. El APACHE II a las 24 horas del ingreso mostró una sensibilidad, especificidad, valor predictivo positivo y negativo del 52, 77, 46 y 84%, respectivamente, como marcador de gravedad. La mortalidad global de la PAG fue del 20,5%. El 70% de los pacientes que presentaron FO lo hicieron en las primeras 24 horas

  1. A bulimia nervosa como fator de risco para distúrbios da voz: artigo de revisão Bulimia nervosa as a risk factor for voice disorders: literature review

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    Patricia Balata

    2008-06-01

    Full Text Available A bulimia nervosa é um tipo de transtorno alimentar que tem início na adolescência e que apresenta uma variedade de sintomas, dentre estes, os episódios recorrentes de vômitos que acometem a cavidade oral, podendo alcançar a laringe de forma semelhante ao refluxo gastroesofágico, ocasionando alterações laríngeas e distúrbios na voz. OBJETIVO: Este trabalho teve como objetivo investigar através da revista da literatura os estudos que relacionassem a BN como fator de risco para os distúrbios da voz. RESULTADOS: Dos noventa e três artigos levantados, vinte e três foram usados como base para esta revisão, dentre os quais, apenas três referem-se à BN com fator etiológico de alterações na voz em mulheres adultas, não sendo encontrado nenhum trabalho referindo esta relação em adolescentes bulímicos. CONCLUSÃO: Faz-se necessária a observância de sinais e sintomas laríngeos e vocais que possam estar relacionados à BN, em especial nos adolescentes cuja voz passa por significativas mudanças quando do período da muda vocal.Bulimia nervosa (BN is a type of feeding disorder that starts in adolescence and presents a variety of symptoms, recurrent vomiting in the oral cavity that may reach down to the larynx - similarly to gastro-esophageal reflux, causing laryngeal and voice disorder alterations. AIM: These studies aimed at surveying the literature and investigate the studies that considered BN a risk factor for voice disorders. RESULTS: of the ninety three papers we found, twenty-three were used as a basis for this review, among them, only three discuss BN as an etiology factor associated with voice changes in adult women, and we did not find any paper associating this with bulimic teenagers. CONCLUSION: It is necessary to observe laryngeal and vocal signs and symptoms associated with BN, especially in teenagers whose voices are going through a period of change.

  2. Creencias Desadaptativas, Estilos de Afrontamiento y Apoyo Social Como Factores Predictores de la Vulnerabilidad Psicopatológica en Mujeres Víctimas de Agresión Sexual

    Directory of Open Access Journals (Sweden)

    María Ángeles de la Cruz

    2015-01-01

    Full Text Available Se han recogido los principales factores de vulnerabilidad descritos en la literatura con objeto de comprobar su efecto sobre la sintomatología desarrollada en víctimas de agresión sexual. Las participantes fueron 77 mujeres víctimas de agresiones sexuales en la edad adulta que acudieron al Centro de Atención a Víctimas de Agresiones Sexuales (C.A.V.A.S. de Madrid, entre los años 2010 y 2013. Los factores que mayor valor predictivo han presentado han sido: elevadas creencias desadaptativas sobre uno mismo, la creencia de control futuro o la realización de conductas preventivas y, como estrategias de afrontamiento, la planificación, el apoyo social instrumental y el uso de sustancias. En cuanto a los factores que han resultado ser predictores de un mejor ajuste destacan el control presente o control sobre la recuperación, la estrategia de autodistracción y la satisfacción con el apoyo social. Finalmente, se describen las implicaciones de los resultados y se sugieren futuras líneas de investigación.

  3. La fatiga como estado motivacional subjetivo

    OpenAIRE

    D. Cárdenas; J. Conde-González; J.C. Perales

    2017-01-01

    Actualmente no existe consenso sobre los factores que determinan la aparición de la fatiga. Hay factores que se derivan exclusivamente del esfuerzo físico, otros que dependen del esfuerzo mental que este lleva aparejado, y otros de los resultados de la tarea que se está realizando. Como consecuencia, se han desarrollado diferentes modelos explicativos que pretenden aunar las diferentes razones de su aparición. No obstante, la tendencia actual es entender la fatiga como un estado motivacion...

  4. Realidad virtual: Un medio de comunicación de contenidos. Aplicación como herramienta educativa y factores de diseño e implantación en museos y espacios públicos

    Directory of Open Access Journals (Sweden)

    Antonio Otero Franco

    2011-05-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE En el presente artículo se hará una reflexión sobre las amplias posibilidades ofrecidas por la Realidad Virtual (RV en general, y los sistemas de visualización inmersiva e interactiva en particular, como vehículo de comunicación de contenidos, bajo una aproximación pedagógica orientada hacia la museística y los espacios públicos. Se analizaran las características principales de este medio de cara a la transmisión de información, así como aquellos factores de diseño e implantación más relevantes en su aplicación al ámbito de los museos y exposiciones. Se utilizaran dos casos de estudio de particular relevancia para exponer alguna de las técnicas de diseño, desarrollo e implementación más usuales a la hora de abordar un proyecto de estas características, y los procedimientos seguidos para dotarlos de un contenido relevante, coherente y didáctico. El primer trabajo presentado, denominado “Botafumeiro Virtual”, si bien tiene un alcance limitado en la proporción de contenido presentado, encierra y ejemplifica, en su concepción, los conceptos básicos de inmersión, interacción, realimentación y presencia, inherentes a los entornos virtuales, además de ser un original propuesta para la puesta en valor conceptos relativos al patrimonio-histórico-artístico-cultural, como lo demuestran los diferentes premios y menciones obtenidas. El segundo proyecto presentado, corresponde al “género” clásico de la Realidad Virtual denominado “Virtual Walktrhough”, o “Paseo Virtual” en donde se presentan una serie de contenidos, orientados hacia el patrimonio natural en este caso particular, de una forma “mixta”, utilizando las técnicas narrativas audiovisuales tradicionales, en conjunción con elementos heredados de los entornos virtuales.

  5. Ouabaina como Hormona

    OpenAIRE

    J. Hernando Ordoñez

    1996-01-01

    Comentario sobre su origen endógeno y sus aplicaciones terapéuticas

    Pocas drogas han sido más estudiadas que el grupo de los digitálicos, estrofantinas y ouabaina, cuyo estudio es objeto del presente trabajo.

    La ouabaina empezó a ser estudiada desde el siglo pasado. La primera referencia conocida corresponde a Pelikan, 1865 (1), como veneno que empleaban para las flechas en Gabón (Africa). (.)

  6. Hoy como ayer

    Directory of Open Access Journals (Sweden)

    Rodríguez M.

    2010-06-01

    Full Text Available Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la situación que se presentaba en aquel momento: “…el desprestigio de que vaya por unos cuantos desnaturalizándose el ejercicio de la farmacia en tal forma que se convierta en un comercio impuro y de la peor estofa; pero conviene mucho combatir con mano firme la tendencia a la baratería, tanto más cuanto que no puede dudarse que significa un rebajamiento a todas luces nocivo y que supone una desorganización que nos llevaría en breve a la más completa ruina, y lo que creo aún más grave, a la desmoralización y el desorden, que no se compadecen en modo alguno con lo que en realidad es hoy y ha sido siempre el ejercicio de una profesión genuinamente científica como lo es la de la farmacia”. La propuesta que se hacía para controlar la situación era “la limitación de farmacias, con vigilancia estrecha del Estado y tarifa uniforme oficial”, así como “hace falta mucha inteligencia y mucha unión, hace falta que nadie permanezca indiferente, que todos y cada uno pongan de su parte lo que puedan”. Nuestra profesión mezcla una doble vertiente sanitaria y comercial que no siempre es fácil mantener equilibrada y, por lo que se ve, esto ha ocurrido así desde siempre. El problema que existe hoy en día es la mercantilización de la farmacia, un desplazamiento de establecimiento sanitario hacia una simple empresa.

  7. Visual acuity and contrast sensitivity are two important factors affecting vision-related quality of life in advanced age-related macular degeneration.

    Science.gov (United States)

    Roh, Miin; Selivanova, Alexandra; Shin, Hyun Joon; Miller, Joan W; Jackson, Mary Lou

    2018-01-01

    Vision loss from age-related macular degeneration (AMD) has a profound effect on vision-related quality of life (VRQoL). The pupose of this study is to identify clinical factors associated with VRQoL using the Rasch- calibrated NEI VFQ-25 scales in bilateral advanced AMD patients. We retrospectively reviewed 47 patients (mean age 83.2 years) with bilateral advanced AMD. Clinical assessment included age, gender, type of AMD, high contrast visual acuity (VA), history of medical conditions, contrast sensitivity (CS), central visual field loss, report of Charles Bonnet Syndrome, current treatment for AMD and Rasch-calibrated NEI VFQ-25 visual function and socioemotional function scales. The NEI VFQ visual function scale includes items of general vision, peripheral vision, distance vision and near vision-related activity while the socioemotional function scale includes items of vision related-social functioning, role difficulties, dependency, and mental health. Multiple regression analysis (structural regression model) was performed using fixed item parameters obtained from the one-parameter item response theory model. Multivariate analysis showed that high contrast VA and CS were two factors influencing VRQoL visual function scale (β = -0.25, 95% CI-0.37 to -0.12, p<0.001 and β = 0.35, 95% CI 0.25 to 0.46, p<0.001) and socioemontional functioning scale (β = -0.2, 95% CI -0.37 to -0.03, p = 0.023, and β = 0.3, 95% CI 0.18 to 0.43, p = 0.001). Central visual field loss was not assoicated with either VRQoL visual or socioemontional functioning scale (β = -0.08, 95% CI-0.28 to 0.12,p = 0.44 and β = -0.09, 95% CI -0.03 to 0.16, p = 0.50, respectively). In patients with vision impairment secondary to bilateral advanced AMD, high contrast VA and CS are two important factors affecting VRQoL.

  8. Visual acuity and contrast sensitivity are two important factors affecting vision-related quality of life in advanced age-related macular degeneration

    Science.gov (United States)

    Selivanova, Alexandra; Shin, Hyun Joon; Miller, Joan W.; Jackson, Mary Lou

    2018-01-01

    Purpose Vision loss from age-related macular degeneration (AMD) has a profound effect on vision-related quality of life (VRQoL). The pupose of this study is to identify clinical factors associated with VRQoL using the Rasch- calibrated NEI VFQ-25 scales in bilateral advanced AMD patients. Methods We retrospectively reviewed 47 patients (mean age 83.2 years) with bilateral advanced AMD. Clinical assessment included age, gender, type of AMD, high contrast visual acuity (VA), history of medical conditions, contrast sensitivity (CS), central visual field loss, report of Charles Bonnet Syndrome, current treatment for AMD and Rasch-calibrated NEI VFQ-25 visual function and socioemotional function scales. The NEI VFQ visual function scale includes items of general vision, peripheral vision, distance vision and near vision-related activity while the socioemotional function scale includes items of vision related-social functioning, role difficulties, dependency, and mental health. Multiple regression analysis (structural regression model) was performed using fixed item parameters obtained from the one-parameter item response theory model. Results Multivariate analysis showed that high contrast VA and CS were two factors influencing VRQoL visual function scale (β = -0.25, 95% CI-0.37 to -0.12, p<0.001 and β = 0.35, 95% CI 0.25 to 0.46, p<0.001) and socioemontional functioning scale (β = -0.2, 95% CI -0.37 to -0.03, p = 0.023, and β = 0.3, 95% CI 0.18 to 0.43, p = 0.001). Central visual field loss was not assoicated with either VRQoL visual or socioemontional functioning scale (β = -0.08, 95% CI-0.28 to 0.12,p = 0.44 and β = -0.09, 95% CI -0.03 to 0.16, p = 0.50, respectively). Conclusion In patients with vision impairment secondary to bilateral advanced AMD, high contrast VA and CS are two important factors affecting VRQoL. PMID:29746512

  9. Marketing Relacional como Factor para la Competitividad

    Directory of Open Access Journals (Sweden)

    Francisca Sánchez de Dusso

    2009-12-01

    Full Text Available Durante los últimos años ha venido creciendo el interés por el estudio del marketing relacional focalizado en el establecimiento de relaciones a largo plazo con los consumidores, dejando atrás al concepto del marketing desde una perspectiva sólo transaccional. Sin embargo muy poco ha sido investigado sobre la aplicación de este nuevo paradigma en empresas de mediana y pequeña envergadura. El objetivo del presente trabajo es describir cómo el marketing relacional puede contribuir al desarrollo de las pequeñas y medianas empresas de nuestra región. Este artículo se enmarca en un estudio mayor en el que se realizará una bajada empírica.

  10. Comunicação visual como recurso de apoio a prevenção e ao controle das infecções hospitalares - valor da lavagem das mãos realçado por figuras e mensagens ilustrativas

    Directory of Open Access Journals (Sweden)

    José Luís da Silveira Baldy

    1984-11-01

    Full Text Available Proposition of visual communication, by illustrative figures and messages appealing to jokes and expressionism, as a mean to reduce the incidence of the hospital infections. The content of the messages is related to the value of the handwashing with soap and water to reach the onlookers, emphasizing the need for the physicians, nurses, students and the remaining technicians and therapists to take to the hand-washing, berfore and after the contacts with the patients, as a basic measure and a routine procedure.Proposta de recurso de comunicação visual - através de figuras e mensagens ilustrativas - para ser aplicada com o objetivo de contribuir pedagogicamente, apelando ao chiste e ao expressionismo, para a divulgação e o estimulo da prática de lavar as mãos, rotineiramente, antes e depois do contato com os doentes, como conduta de grande importância, adotada pelo pessoal médico e paramédico, entre as medidas de prevenção e controle das infecções adquiridas por pacientes hospitalizados.

  11. Gravidez na adolescência como fator de risco para baixo peso ao nascer no Município do Rio de Janeiro, 1996 a 1998 The pregnancy during adolescence as a risk factor for low birth weight, Brazil

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    Silvana Granado Nogueira da Gama

    2001-02-01

    Full Text Available OBJETIVO: Observar a evolução das taxas de fecundidade e identificar o papel da gravidez na adolescência como fator de risco para o baixo peso ao nascer (BPN. MÉTODOS: Em uma amostra de nascimentos provenientes do Sistema de Informações sobre Nascidos Vivos (SINASC/RJ, entre 1996 e 1998, os fatores determinantes do BPN foram analisados em dois grupos de mães, de 15 a 19 anos e de 20 a 24 anos. Foram estimadas as associações entre as variáveis pela razão dos produtos cruzados -- Odds Ratio (OR e respectivos intervalos de confiança. Utilizaram-se também procedimentos de regressão logística. RESULTADOS: O BPN foi significativamente maior entre o grupo de mães adolescentes do que no grupo de 20-24 anos. O pré-natal não foi realizado em 13% das adolescentes, enquanto 10% do outro grupo não tiveram atendimento. Quando realizado o pré-natal, as adolescentes tiveram menos consultas. No grupo de adolescentes, o percentual de prematuros foi significativamente maior que no outro grupo. Foram observadas diferenças por tipo de maternidade (públicas/privadas, com predomínio de uso das públicas pelas adolescentes. A análise de regressão logística mostrou que existe um efeito da idade materna na explicação do BPN, mesmo quando controlado por outras variáveis CONCLUSÕES: Os achados sugerem que investigações sobre os mecanismos explicativos da associação entre o BPN e a gravidez na adolescência devem ser realizadas, abrangendo fatores socioculturais como pobreza e marginalidade social, assim como os de natureza biológica e de alimentação na gravidez.OBJECTIVE: To identify the role of pregnancy during adolescence as a risk factor to low birth weight (LBW. METHODS: A stratified sample of live births from the Information System of Live Births in the municipality of Rio de Janeiro, in the period 1996-98, was selected. The risk factors of LBW were analyzed for the two strata composed by the mother age, 15-19 and 20-24 years old

  12. ESTRATEGIA DE INNOVACIÓN COMO FACTOR DETERMINANTE DEL ÉXITO DE LAS COOPERATIVAS VITIVINÍCOLAS DE CASTILLA LA MANCHA/INNOVATION AS STRATEGY FACTOR DETERMINING THE SUCCESS OF COOPERATIVES WINE OF LA MANCHA CASTILLA

    Directory of Open Access Journals (Sweden)

    María Valle FERNÁNDEZ MORENO

    2009-05-01

    Full Text Available La búsqueda de ventajas competitivas, como una de las principales tareas de la empresa, se ha convertido en un principio de las teorías contemporáneas de dirección estratégica (Teece, Pisano y Shuen, 1997. La innovación facilita la adaptación de la empresa al entorno global competitivo, por lo que representa un papel estratégico en el desempeño empresarial. En este sentido destaca la creciente importancia de la innovación y de la utilización de los activos tecnológicos de la empresa. Precisamente, en este trabajo se estudia el efecto en los resultados de cuatro dimensiones de la estrategia de innovación tecnológica sobre una muestra de cooperativas vitivinícolas de Castilla La- Mancha./The search for competitive advantages as one of the main activities of a company has become a principle of contemporary theories on Strategic Management (Teece, Pisano and Shuen, 1997. Innovation facilitates a company//////s adaptation to the global competitive environment, representing the important strategic role that it has to play in relation to managerial performance and, as such, underlines the growing importance of innovation and the use of a company//////s technological assets. This paper therefore studies the effect of the results of four dimensions of technological innovation strategy on a sample of wine cooperatives from Castilla-La Mancha.

  13. Los trastornos de personalidad en reclusos como factor de distorsión del clima social de la prisión Personality disorders amongst inmates as a distorting factor in the prison social climate

    Directory of Open Access Journals (Sweden)

    J.M. Arroyo

    2009-06-01

    Full Text Available Se estudia la prevalencia de los Trastornos de Personalidad (TP en una prisión y su efecto en el clima social del establecimiento. El trabajo demuestra una relación estadísticamente significativa entre indicadores de desajuste del clima social en una prisión, como por ejemplo las conductas interpersonales agresivas o la demanda compulsiva de psicofármacos en las consultas médicas y el diagnóstico de TP. Este tipo de trastorno mental, uno de los más frecuentes en prisión, requiere especial atención por parte de los servicios sanitarios y su manejo es extraordinariamente complejo en el medio penitenciario.The prevalence of Personality Disorders (PD in a prison and its effect on prison social climate are studied. Our research shows a statistically significant relationship between diagnosis of PD and indicators of social climate disruption such as aggressive interpersonal conduct or compulsive demand for psychoactive drugs in medical consultations. PD is one of the most common mental disorders in prison, and requires special attention from health services, while management of the disorder is a tremendously complex issue in the prison context.

  14. Las leyendas regionales como intangibles territoriales

    Directory of Open Access Journals (Sweden)

    Eloy Martos Núñez

    2015-01-01

    Full Text Available El artículo examina el concepto de leyenda como intangible territorial en diversas escalas, desde la local a la regional o nacional, y su relación con la construcción de mitos étnicos y la emergencia de tradiciones translocales. Para ello, se revisan la metodología de los estudios corográficos y las nociones de ecotipo y de paisaje cultural, así como la etnografía de los territorios simbólicos a la luz de conceptos como el clásico «témenos» y modernos como el «mytho-moteur» (Abadal, 1958. Se aplican estudios de casos que evidencian cómo es el Imaginario, en interacción con factores geohistóricos del lugar, el que a menudo acota y perimetrea un territorio a través de cauces como la fabulación legendaria y los ritos paralitúgicos, como procesiones o peregrinaciones. La conclusión es que las leyendas y los arquetipos de origen étnico y genealógico reescriben tradiciones que crean identidades y se pueden proyectar en ámbitos diferentes de la vida política o recreativa, con perfiles igualmente diferentes.

  15. Bronchopulmonary dysplasia as a predictor factor for motor alteration at 6 months corrected age in premature infants Displasia broncopulmonar como fator predisponente para alterações motoras aos 6 meses em prematuros

    Directory of Open Access Journals (Sweden)

    Priscila Silveira Martins

    2010-10-01

    Full Text Available OBJECTIVE: The study aimed to assess bronchopulmonary dysplasia (BPD as a predisposing factor for alteration in the psychomotor development index (PDI in premature infants and verify the incidence of neuromotor alterations at 6 months corrected age. METHOD: This was a prospective cohort study that followed the neuromotor development of 152 very low birth weight premature infants, with psychomotor development index as the outcome. The study used the Bayley Scale of Infant Development at 6 months corrected age, and neurological examination. RESULTS: Incidence of BPD was 13.2% (n=20. Logistic regression analysis showed an association between BPD and altered psychomotor development index (OR 3.98; 95%CI: 1.04-15.1 after adjusting for confounding variables. Neurological examination was altered in 67.1% of the 152 infants. CONCLUSION: Bronchopulmonary dysplasia acted as an independent predisposing factor for alteration in the psychomotor development index in premature infants at 6 months corrected age.OBJETIVO: Avaliar a displasia broncopulmonar (DBP como fator predisponente para alteração no índice de desenvolvimento psicomotor em prematuros e verificar a incidência das alterações neuromotoras aos 6 meses de idade corrigida. MéTODO: Estudo de coorte prospectivo que acompanhou o desenvolvimento neuromotor de 152 prematuros de muito baixo peso, cujo desfecho foi o desenvolvimento psicomotor. Utilizou-se a Bayley Scale of Infant Development aos 6 meses de idade corrigida e exame neurológico. RESULTADOS: A incidência de DBP foi de 13,2% (n=20. A análise de regressão logística mostrou associação entre a DBP e alteração no índice de desenvolvimento psicomotor (RC 3,98 IC 95%:1,04-15,1 após ajuste para as variáveis de confundimento. O exame neurológico apresentou-se alterado em 67,1% das 152 crianças. CONCLUSão: A displasia broncopulmonar atuou como fator predisponente independente para alteração no índice de desenvolvimento

  16. Las relaciones fabricante distribuidor como elementos básicos de un modelo competitivo en el caso del cluster cerámico español. Análisis empírico de los factores moderadores

    Directory of Open Access Journals (Sweden)

    Albors Garrigós, J.

    2008-12-01

    Full Text Available The tile ceramic industry, as other traditional industries, is immersed in a context of constant changes driven by relevant competition world-wide. The distribution function is not an exception and is playing an increasing role in a global economy. On the other hand, the abundance of information and easy access to products and services is forcing distributors and traditional intermediaries to search new forms to relate with buyers and salesmen through mechanisms which guarantee the final end user complete satisfaction. This paper objective is exploring the influence and role of distribution channels in the creation of value in the case of Spanish tile ceramic industry. In this direction three moderating factors in the model have been analyzed: market oriented activities; strategic exchange of information with manufacturers; and offer of complementary services by distributors to final clients.

    La industria cerámica, como otras industrias tradicionales, se encuentra inmersa en un contexto de constantes cambios marcado por una importante competencia a nivel mundial. La función distribución no es una excepción y viene cobrando un rol cada vez más relevante en la economía globalizada. Por otra parte, la proliferación de información y su fácil acceso sobre productos y servicios esta obligando a los distribuidores e intermediarios tradicionales a buscar nuevas formas de relacionar a compradores y vendedores a través de mecanismos que garanticen la completa satisfacción del usuario final. Este trabajo tiene como objeto explorar la influencia y el rol de los canales de distribución en la creación de valor en el sector cerámico español. En este sentido se analizan tres factores moderadores en el modelo: Actividades de orientación al mercado; intercambio de información estratégica con fabricantes; y servicios complementarios ofrecidos al cliente final.

  17. Relationship between age at menarche and exposure to sexual content in audio-visual media and other factors in Islamic junior high school girls

    Directory of Open Access Journals (Sweden)

    Tity Wulandari

    2018-01-01

    Full Text Available Background In recent decades, girls have experienced menarche at earlier ages, which may have negative effects on health. Exposure to audio-visual media and other factors may influence the age at menarche, although past studies have produced inconsistent results. Objective To assess for relationships between the age at menarche and audio-visual media exposure, socio-economic status, nutritional status, physical activity, and psychosocial dysfunction in adolescent girls. Methods This cross-sectional study was conducted from August to October 2015 in students from two integrated Islamic junior high schools in Medan, North Sumatera. There were 216 students who met the inclusion criteria: aged 10-16 years and experienced menarche. They were asked to fill out questionnaires that had been previously validated, regarding their history of exposure to audio-visual media, physical activity, and psychosocial dysfunction. The data were analyzed by Chi-square and Fisher’s exact tests in order to assess for relationships between audio-visual media exposure and other potential factors with the age at menarche. Results Of 261 female students at the two schools, 216 had undergone menarche, with a mean age at menarche of 11.6 (SD 1.13 years. There was no significant relationship between age at menarche and audio-visual media exposure (P=0.68. Also, there were no significant relationships between factors such as socio-economic and psychosocial status with age at menarche (P=0.64 and P=0.28, respectively. However, there were significant relationships between earlier age at menarche and overweight/obese nutritional status (P=0.02 as well as low physical activity (P=0.01. Multivariate logistic regression analysis showed that low physical activity had the strongest influence on early menarche (RP=2.40; 95%CI 0.92 to 6.24. Conclusion Age at menarche is not significantly associated with sexual content of audio-visual media exposure. However, there were significant

  18. O ensaio como narrativa

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    Pedro Duarte

    2016-02-01

    Full Text Available O artigo tenta demonstrar que todos os textos, mesmo aqueles cuja natureza é teórica, têm alguma forma de narrativa. Nem sempre são personagens que os ocupam, podem ser ideias, mas mesmo assim há um enredo conceitual que se passa. Modernamente, a forma dessa narrativa foi sobretudo o sistema, com a pretensão totalizadora presente, por exemplo, na filosofia de Hegel. Contemporaneamente, porém, a forma do ensaio – surgida ainda na era moderna – ganha destaque por sua forma descontínua de narrar. O objetivo do artigo é apontar que, se o ensaio é uma forma, como explicitaram Lukács, Benjamin e Adorno, ele é também uma forma de narrar – ainda que de narrar conceitualmente objetos da cultura.

  19. La Justicia como virtud

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    Martínez-Sicluna y Sepúlveda, Consuelo

    2003-07-01

    Full Text Available El sentimiento de la justicia representa el hábito de conducta por el que nos vemos obligados, en cualquier relación, a dar a cada uno lo suyo. Ahora bien, esta disposición del espíritu se inscribe en las coordenadas que definen al hombre: verdad, libertad y bien. El hombre como ser racional y por tanto libre: el único ser que se determina a sí mismo y que alcanza en el bien el sentido de su proyección personal, esto es, la perfección. Dar a cada uno lo suyo es dar al sujeto el reconocimiento de este fundamento ontológico.

  20. Como comunicar la Alegria

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    Pablo Portales

    2015-01-01

    Full Text Available Se ofrece un amplio análisis sobre la industria electoral, recordando que un candidato a presidente es "un producto para la venta". Se Desmenuzan las estrategias utilizadas en el plebiscito chileno,las elecciones norteamericanas con el NO a BUSH. El Mercadeo Social es una nueva metodología utilizada en proyectos de desarrollo a nivel de campo por ello se hace un esclarecimiento y clarifica el vínculo con la comunicación. Se agrega temas como: Los modelos de recepción de mensajes cuyos marcos conceptuales y metodologías aún no se han adaptado al potencial de esta línea de trabajo.Se analiza la agonía de las radios mineras en Bolivia en la que 42 años de historia y heroísmo se desmoronan.

  1. El inquisidor como profesor

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    Adriano PROSPERI

    2009-12-01

    Full Text Available Giovanni Botero, en una célebre página de su Ragion di stato, se detuvo sobre el tema de la fuerza de la religión en los gobiernos. Esta función de la religión cristiana —para Botero, católica— es garante del orden público y se presenta también como opuesta a la generadora de desorden de Lutero y Calvino, quienes siembran por todo cizañas y revoluciones de estados y ruinas de los reinos. Estamos en los orígenes del esquema historiografía de la periodización de la Edad Moderna que confió precisamente a la Reforma el papel de nodriza de las revoluciones que nacieron en Europa.

  2. La textura del suelo como factor regulador de la adsorción de Escherichia coli en una cuenca de la Pampa Ondulada (Argentina Soil texture as a regulating factor of Escherichia coli adsorption in a Rolling Pampa basin (Argentina

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    Filipe Behrends Kraemer

    2011-06-01

    Full Text Available El aumento de la carga animal vacuna en la Pampa Ondulada asociado a áreas frágiles supone un importante riesgo de contaminación biológica. Dicha contaminación está regulada por variables edáficas, como la textura, que controlan el transporte de contaminantes biológicos hacia los cuerpos de agua. En el presente trabajo se correlacionó la adsorción bacteriana del suelo con distintos tamaños de partículas individuales correspondientes a 27 suelos provenientes de una cuenca de la Pampa Ondulada. Para ello se utilizó una técnica de centrifugación lenta. Los valores de adsorción bacteriana, empleando en la determinación Escherichia coli ATCC 8739, variaron entre 25,3% y 73,3%, y el tamaño de partícula que mejor se correlacionó con esta propiedad fue el correspondiente a la fracción de arcillas (R² = 0,6. Esta correlación mejoró al considerar conjuntamente a todas las partículas menores de 3 µm (R² = 0,64, lo que resalta la capacidad de los limos muy finos en el fenómeno de adsorción. La curva de ajuste elaborada con los datos experimentales se comparó con la obtenida de acuerdo con el modelo propuesto por Ling et al. (2002. Se encontraron similitudes en la pendiente, no así en la ordenada al origen. Esta diferencia desapareció al emplear en la determinación una cepa autóctona aislada de deyecciones animales provenientes de la cuenca estudiada, dado que dicha cepa evidenció una adsorción 48% superior a la observada con la cepa de colección.

  3. Parental stress, harsh treatment and parental monitoring as factors associated with aggressive behaviour[Estrés parental, trato rudo y monitoreo como factores asociados a la conducta agresiva

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    Ivón Paola Guevara Marín

    2012-03-01

    Full Text Available This research studied the joint contribution of three parenting practices in the explanation of aggressive behavior. The main interest was to investigate the associations between these factors, the socioeconomic status, and the differences between the reports provided by parents in regards to the aggressive behavior of their children. The sample included 256 couples whose children were teenagers with an age range between 12 and 18 years old. The results show that parental stress, the harsh treatment, and monitoring are significantly associated with aggressive behavior of children. Parental stress was the factor with the highest degree of prediction. Significant differences were found for the three factors in high and low socioeconomic levels, but in medium and high were not. As for the versions of the parents, there were no significant differences in stress and rough management, but monitoring.

  4. Moral Responsibility and Confidence as Factors That Influence Teacher Involvement in Educational Change (Responsabilidad moral y confianza como factores que influyen en la participación del profesor en el cambio educativo)

    Science.gov (United States)

    López, Cecilio

    2010-01-01

    Various factors that are not easily observed have a strong impact on educational change. In this paper, I examine some of the issues that emerged from the data collected while exploring my informants' perceptions and attitudes towards their changing roles when confronted with curriculum innovation. This research demonstrates that the experience…

  5. Internal Labour Market as Factor in the Career Success Perceived by an EngineerMercado Interno de Trabalho como Fator de Sucesso na Carreira Percebido pelo EngenheiroMercado Interno de Trabajo como Factor de Éxito en la Carrera Percibido por Ingeniero

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    HEREDIA, Alberto Ismael Bejarano

    2011-06-01

    Full Text Available ABSTRACTThe phenomenon of the global crisis in both the financial energy sectors as well as the emergence of new technologies companies consider their success or failure depending on the ability to respond quickly to opportunities in their competitive environment. This competitiveness is found especially in the capacity of their technical professionals. On the other hand career is characterized as protean, boundaryless and directed mainly by the individual. Given this scenario, organizations should organize an internal labor market to attract, develop and retain talent. The purpose of this research is to study the impact of internal labour market and subjective career success perceived by engineers in organizations. For the study a survey was conducted via email to 1135 graduates with a response rate of 89.07%. Structural equations were then applied to identify relationships. The results show a positive relationship between internal labour market and subjective career success perceived by engineers working in the organization. The conclusions of the study can help engineers and companies to drive the careers of these knowledge workers as a way to help them to be happier and help their companies to have more dynamic and proactive engineers. At the same time, educational institutions with engineering programs will gain a better understanding of an engineer’s career, and will be able to use this knowledge to review the effectiveness of their educational programs.RESUMOPelo fenômeno da crise global nos setores financeiro e de energia, e pelo surgimento de novas tecnologias, as empresas consideram que seu sucesso ou fracasso depende da capacidade de responder rapidamente às oportunidades em seu ambiente competitivo. Esta competitividade é encontrada principalmente na capacidade de seus profissionais técnicos. Por outro lado, a carreira é caracterizada como protéana, sem fronteiras e dirigida principalmente pelo indivíduo. Diante desse cen

  6. Possible role for fundus autofluorescence as a predictive factor for visual acuity recovery after epiretinal membrane surgery.

    Science.gov (United States)

    Brito, Pedro N; Gomes, Nuno L; Vieira, Marco P; Faria, Pedro A; Fernandes, Augusto V; Rocha-Sousa, Amândio; Falcão-Reis, Fernando

    2014-02-01

    To study the potential association between fundus autofluorescence, spectral-domain optical coherence tomography, and visual acuity in patients undergoing surgery because of epiretinal membranes. Prospective, interventional case series including 26 patients submitted to vitrectomy because of symptomatic epiretinal membranes. Preoperative evaluation consisted of a complete ophthalmologic examination, autofluorescence, and spectral-domain optical coherence tomography. Studied variables included foveal autofluorescence (fov.AF), photoreceptor inner segment/outer segment (IS/OS) junction line integrity, external limiting membrane integrity, central foveal thickness, and foveal morphology. All examinations were repeated at the first, third, and sixth postoperative months. The main outcome measures were logarithm of minimal angle resolution visual acuity, fov.AF integrity, and IS/OS integrity. All cases showing a continuous IS/OS line had an intact fov.AF, whereas patients with IS/OS disruption could have either an increased area of foveal hypoautofluorescence or an intact fov.AF, with the latter being associated with IS/OS integrity recovery in follow-up spectral-domain optical coherence tomography imaging. The only preoperative variables presenting a significant correlation with final visual acuity were baseline visual acuity (P = 0.047) and fov.AF grade (P = 0.023). Recovery of IS/OS line integrity after surgery, in patients with preoperative IS/OS disruption and normal fov.AF, can be explained by the presence of a functional retinal pigment epithelium-photoreceptor complex, supporting normal photoreceptor activity. Autofluorescence imaging provides a functional component to the study of epiretinal membranes, complementing the structural information obtained with optical coherence tomography.

  7. Discriminación visual como determinante de estilo y asignación tipológica de la cerámica códice de Calakmul, Campeche Visual Discrimination as a Style and Typological Classification Determiner for "Codex"Ceramics in Calakmul, Campeche

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    Sylviane Boucher

    2012-01-01

    Full Text Available Los aproximadamente 600 fragmentos de cerámica de estilo códice recuperados por el Proyecto Arqueológico Calakmul, corresponderían a un mínimo de 86 vasijas. La mayoría proviene de contextos asociados al palacio, Estructura XX, de la Gran Acrópolis donde, probablemente, se celebraban importantes eventos sociales y políticos entre la aristocracia maya, como se ha planteado. Los análisis químicos de pasta de cerámica códice han dado como resultado divisiones principales dentro de ésta, aunque se ha propuesto como único foco de fabricación la región de la cuenca de El Mirador. Los nuevos hallazgos en Calakmul nos permiten cuestionar el origen único de este estilo. Mientras que se generan datos comparativos para una caracterización de las huellas químicas de pasta, proponemos un análisis con base en modas cerámicas y en el sistema Tipo-variedad.This paper, primarily, addresses the approximately 600 codex style sherds recovered during the Calakmul Archaeological Project. These sherds make up a minimum of 86 vessels. The majority of these come from archaeological contexts associated with the palace structure known as Structure XX in the Great Acropolis, where important social and political events took place among maya aristocracy. Paste chemical analysis of codex style ceramics have resulted in several divisions. Nevertheless it was proposed that they formed an homogeneous group, with one focus of production, El Mirador Basin. New discoveries in Calakmul permit us to question the premise of a single origin for this style. While new comparative data is generated from paste characterization of chemical fingerprints, we propose an analysis based on concepts of ceramic modes and the Type-variety system.

  8. La persona como creatura

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    Emmanuel Housset

    2010-01-01

    Full Text Available El artículo de Emmanuel Housset implica un esfuerzo de rehabilitación del concepto «persona» para la filosofía contemporánea y la fenomenología. Para ello el autor busca mostrar cómo poco a poco «persona» tomó otra significación que la de «personaje» o sujeto de derecho. Es en autores como san Agustín y santo Tomás de Aquino que se halla un acceso diferente que pone el énfasis más bien en su carácter relacional y responsivo de la persona, antes que en su dimensión autónoma y autotélica. Tal dimensión aparece, según Housset, junto con la idea de persona como creatura y en oposición a la de individuo racional dueño de sí. La dimensión afectiva, la personalidad despertada por las diversas figuras de la alteridad son algunas de las dimensiones de la persona que examina el autor a partir del examen de la carne, las pasiones, la memoria, la historicidad y el amor alteridad.Emmanuel Housset's paper is an effort to revitalize the concept of 'person' for contemporary philosophy and phenomenology To this end the author looks to show how little by little the understanding of 'person' took on a different meaning to that of 'character' or "right bearing individual". It is in authors such as St. Augustine and St. Thomas Aquinas that a different approach is found, one that puts emphasis on the relational and responsive character of a person, rather than on the autonomous and auto telic dimension. According to Housset, such a dimension appears together with the idea of the person as a creation, and in opposition to the idea of the rational individual, that is his own master. The emotional dimension and the personality that is awoken by the many figures of alterity are some of the dimensions of the person that the author analyzes, based on examining the flesh, passions, memory historicity and love.

  9. Inclusão de pessoas com deficiência na empresa como fator responsabilidade social - Inclusion of people with disabilities in the company as a factor social responsibility

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    Daniel Silva Guimarães

    2017-07-01

    O presente artigo trata do estudo da inclusão de pessoas com deficiência na empresa como fator de responsabilidade social, tendo por objetivo verificar o conceito de responsabilidade social empresarial e sua relação com esse tipo de inclusão. A responsabilidade social muitas vezes é confundida com o conceito de filantropia, o que leva muitas empresas a focarem suas ações sociais em apenas um determinado grupo de pessoas. Todavia, ser socialmente responsável é ir além de ações filantrópicas, é possuir uma gestão que se baseia na ética empresarial. E, diante do cenário atual de conquistas sociais, se torna fundamental à empresa ter o conhecimento de suas obrigações legais mediante seu papel no processo de contratação da pessoa com deficiência, pois a legislação brasileira defende a empregabilidade e a acessibilidade dessas pessoas como uma garantia de inclusão na sociedade e na empresa. Assim, com uma metodologia de pesquisa bibliográfica e estudo de caso de forma qualitativa, obteve-se a resposta para o seguinte problema de pesquisa: “há dificuldade no processo de inclusão da pessoa com deficiência na empresa?”. Palavras – chave: Responsabilidade social; Inclusão; Empresa. ABSTRACT This article deals with the study of the inclusion of people with disabilities in the company as a social responsibility factor, aiming to verify the concept of corporate social responsibility and its relationship with this type of inclusion. Social responsibility is often confused with the concept of philanthropy, which leads many companies to focus their social actions in only a certain group of people. However, being socially responsible is to go beyond philanthropy, it is to have a management that is based on business ethics. And given the current scenario of social achievements, it becomes fundamental to the company have knowledge of their legal obligations by its role in the person's contracting process with disabilities because Brazilian law

  10. PARP-1 como regulador del ciclo celular

    OpenAIRE

    Iglesias Vázquez, Pablo

    2015-01-01

    En el presente estudio hemos querido investigar las implicaciones biológicas de la interacción PARP-1/E2F-1 en escenarios en los que el factor de transcripción E2F-1 resulta de gran importancia como son el desarrollo embrionario y la oncogénesis. En este respecto, hemos demostrado que tanto PJ34, inhibidor de la actividad enzimática de PARP, como gosipol, inhibidor de las interacciones proteína-proteína, son capaces de reducir la actividad transcripcional de E2F-1 y la proli...

  11. O analista como testemunha

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    Jô Gondar

    2016-04-01

    Full Text Available Resumo A proposta deste artigo é pensar o lugar da testemunha como um lugar terceiro que o analista, na clínica do traumático, é capaz de sustentar. Nos sonhos traumáticos, segundo Ferenczi, já existe a convocação de um terceiro. Não se trata da testemunha da esfera do Direito, tampouco do lugar do pai ou da Lei simbólica. Trata-se de um terceiro espaço que pode ser chamado de potencial, espaço intersticial, indeterminado e informe no qual circula - e aos poucos ganha forma -, algo que a princípio seria incomunicável. Esse espaço permite e suporta a literalidade da narrativa testemunhal, seus titubeios, paradoxos e silêncios. Mais do que uma teoria do trauma, a noção de espaço potencial seria a grande contribuição da psicanálise às pesquisas teóricas e clínicas com sobreviventes de campos de extermínio, de situações de tortura e de violência.

  12. Arte como espelho

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    Pedro Süssekind

    2016-12-01

    Full Text Available Este artigo tem como ponto de partida o exemplo da relação espelhada entre um livro e uma pintura de mesmo nome: o retrato que Lucian Freud fez do crítico de arte Martin Gayford e o diário que esse crítico escreveu sobre seu retratista, ambas as obras chamadas Homem com cachecol azul. A partir do exemplo, discuto a metáfora do espelho para caracterizar a arte, recorrendo para isso à teoria da representação artísticas elaborada pelo filósofo norte-americano Arthur Danto no artigo “O mundo da arte”, de 1964, e no primeiro capítulo do livro A transfiguração do lugar-comum, de 1981. Recorro, por fim, a dois exemplos artísticos de espelhamento na representação analisados por Danto em O abuso da beleza, de 2003, um quadro holandês do século dezessete e um poema de Rainer Maria Rilke.

  13. El riesgo como oportunidad

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    Daniela Gargantini

    2003-01-01

    Full Text Available Durante los últimos años el crecimiento mundial de catástrofes naturales ha ido en franco aumento. Sin embargo, desde un enfoque sistémico puede verificarse que la gran mayoría de los desastres se origina en los países en desarrollo (entre ellos los latinoamericanos, siendo las pérdidas en ellos significativamente más altas que en los países industrializados. Bajo esta postura los desastres no son sólo naturales sino socio- naturales, enfatizando la estrecha relación de causalidad entre modelos de desarrollo y urbanización y procesos de generación de riesgos, al incrementar la vulnerabilidad de los sectores más desprotegidos. El desastre pone en evidencia así una situación (la pobreza y segregación urbana ya existente, pero no considerada hasta el momento de la catástrofe. Frente a este panorama el desastre aparece como oportunidad que precipita tres catalizadores de políticas habitacionales: tierra, asistencia técnica y financiamiento, incrementando la celeridad y la creatividad de las respuestas. El interrogante que surge es por qué esperar el desastre para ponerlos en marcha, cuando ninguno de ellos es estrictamente dependiente de la situación de riesgo, sino sujeto de luchas de poder.

  14. Endomarketing: como diferencial competitivo

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    Karin Birck

    2013-05-01

    Full Text Available Atualmente, com a profissionalização das empresas e com a grande concorrência no mercado, observa-se uma demanda cada vez maior de gestores comprometidos com o bem-estar pessoal e profissional de seus colaboradores. E, com esse intuito, de apresentar algumas idéias básicas de gestão voltadas à aplicação nas mais diversas técnicas de Endomarketing. Demonstra assim, a importância da utilização de feedback, tanto por parte dos colaboradores quanto dos gestores, destacando a importância de trabalhos de motivação, do clima organizacional favorável e de uma comunicação interna eficaz e a necessidade ímpar de tratar o colaborador como o diferencial dentro de uma empresa. Desta forma, foi realizada uma pesquisa bibliográfica que auxiliará e dará subsídios que lhe permitam retribuir em ações e atitudes de sucesso e, também, fazer um confronto de idéias, onde os autores apresentam suas mais diversas opiniões. Contudo, valendo-se, muitas vezes, de narrativas de experiências de outros gestores e até mesmo de suas próprias, tirando cada um suas próprias conclusões.

  15. Erros de refração como causas de baixa visual em crianças da rede de escolas públicas da regional de Botucatu - SP Refractive errors as causes of visual impairment in children from public schools of the Botucatu region - SP

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    Claudia Akemi Shiratori de Oliveira

    2009-04-01

    Full Text Available OBJETIVO: Estudar a ocorrência dos erros refracionais em escolares de nosso meio. MÉTODOS: Estudo transversal avaliando crianças da pré-escola e do ensino básico, quanto ao sexo, tipo de erro refracional, acuidade visual e tratamento realizado. RESULTADOS: Quatro mil seiscentos e vinte e três crianças foram submetidas a exame de acuidade visual, das quais 8,1% apresentaram necessidade de exame oftalmológico completo. Houve 63,2% de portadores de astigmatismo hipermetrópico, 15,7% de astigmatismo miópico, 12,5% de astigmatismo misto, 4,9% de hipermetropia e 3,7% de miopia. Foi indicada a prescrição de lentes corretoras para 48,7% da amostra estudada. A frequência de erros refracionais na população foi de 3,9%. CONCLUSÃO: O astigmatismo hipermetrópico foi o erro de refracional mais frequente, havendo necessidade de tratamento em cerca de 50% das crianças triadas com frequência de 3,9% de erro refracional passível de correção na população de estudo.PURPOSE: To evaluate the refractive errors as cause of visual impairment in school children from the Botucatu region. METHODS: A sectional study was conducted evaluating preschool and elementary school students, according to gender, refractive error, visual acuity and treatment. RESULTS: Four thousand six hundred and twenty-three (4,623 children were submitted to visual acuity evaluation and 8.1% of them were submitted to complete ocular examination. There were 63.2% hyperopic astigmatism, 15.7% myopic astigmatism, 12.5% astigmatism, 4.9% hyperopia and 3.7% myopia. Corrective lenses were prescribed for 48.7% of the evaluated children. CONCLUSION: The most frequent refractive error was hyperopic astigmatism and 50% of the children received treatment. The frequency of refractive errors was 3.9% of the studied population.

  16. Hiponatremia como factor de riesgo de muerte en pacientes internados por neumonía adquirida en la comunidad Hyponatremia as a risk factor of death in patients with community-acquired pneumonia requiring hospitalization

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    Ricardo E. Barcia

    2006-12-01

    Full Text Available Investigamos si la hiponatremia es un factor de riesgo de muerte en pacientes internados por neumonía adquirida en la comunidad (NAC y estimamos el peso relativo de otros factores de riesgo de muerte por NAC, en un estudio de cohorte, prospectivo, multicéntrico, en 5 Servicios de Clínica Médica del Area Metropolitana de Buenos Aires. Evaluamos adultos con NAC ingresados entre 21 de marzo de 2000 y 21 de diciembre del mismo año. Los factores de riesgo que mostraron asociación con evolución por análisis univariado, fueron sometidos a análisis de regresión logística, con un nivel de significación de a de 0.05. En 9 meses se internaron 238 pacientes con NAC: 150 (63% varones y 88 (36% mujeres, con edades medias 52.99 (±20.35 y 55.06 (±20.94 años, respectivamente. Fallecieron 25/238 (10.5%. En análisis multivariado, se asociaron significativamente con evolución: enfermedad vascular encefálica (EVE (B: 2.614, pWe investigated whether hyponatremia is a risk factor of death in patients hospitalized with community-acquired pneumonia (CAP and estimated the relative risk of death by CAP of other risk factors. The design was prospective multicentre cohort study. In 5 centers in Buenos Aires, Argentina, we studied adults hospitalized with CAP between March 21, 2000 and December 21, 2000. Using stepwise logistic regression, we analyzed risk factors that showed a univariate association with mortality; a significance level was 0.05. During a 9-month period, 238 patients were admitted with CAP: 150 (63% male and 88 (36% female, mean age 52.99 (±20.35 and 55.06 (±20.94, respectively. Mortality was 10.5% (25/238. By multivariate analysis, the following variables were statistically associated with evolution: cerebrovascular disease (CD (B: 2.614, p<0.001, RRE: 13.6, IC 95%: 3.7-49.6; hyponatremia at admission or during hospitalization (B: 1.994, p<0.001, RRE: 7.3, IC 95%: 2.5-20.8; and elevated blood urea (B: 0.016, p= 0.003, RRE: 1.016, IC 95

  17. Idade materna como fator de risco: estudo com primigestas na faixa etária igual ou superior a 28 anos La edad materna como un factor de riesgo: estudio com primigestas en la facha etaria igual o superior a 28 años Maternal age as a risk factor: a study on first time pregnant women with age equal or higher than 28 years old

    Directory of Open Access Journals (Sweden)

    Cristina Maria Garcia de Lima Parada

    1999-10-01

    Full Text Available Trata-se de estudo transversal, cujo objetivo foi analisar a idade materna como fator de risco ou não, através da verificação de intercorrências na gestação, parto e puerpério de primigestas com idade igual ou superior a 28 anos e das condições de nascimento e alta de seus recém-nascidos, comparando-as com o grupo de primigestas na faixa etária de 20 a 27 anos. Foi realizado em Botucatu/S.P., no período de janeiro de 1990 a junho de 1995. A análise estatística, discutida ao nível de 5% de significância, foi realizada através da prova de Mann-Whitney, teste de Goodman e avaliação do risco relativo e risco relativo corrigido, através da técnica de Mantel-Haenszel. Concluiu-se que a idade materna igual ou superior a 28 anos não constituiu fator de risco gestacional, puerperal e intra-parto mas, por outro lado, foi fator de risco, mesmo após controlado o tipo de parto, para as seguintes intercorrências perinatais: taquipnéia transitória do recém-nascido, cianose generalizada ao nascer e infecção neonatal.Es un estudio que tiene por objetivo analizar la edad materna como factor de riesgo o no, a través de la verificación de complicaciones en la gestación, parto y puerperio de primigestantes con edad igual o superior a 28 años, así como también las condiciones de nacimiento y alta de sus recien nacidos, haciendo una comparación con los grupos de primigestas en la facha etaria de 20 a 27 años. Se realizó en Botucatu/SP, del enero, 1990 al junio, 1995. El análisis de las estadísticas discutidas, tuvo un nivel significante de 5%, estas fueron realizadas a través de la prueba de Mann-Whitney y teste de Goodman. La evaluación del riesgo relativo y riesgo relativo corregido, fueron hechas a través de la técnica de Mantel-Haenszel. Se concluye que la edad maternal igual o superior a 28 años no constituye un factor de riesgo gestacional, puerperal e intra-parto, pero por outro lado, fue un factor de riesgo, mismo

  18. A 5-year multicenter prospective cohort study on the long-term visual prognosis and predictive factors for visual outcome in Japanese patients with age-related macular degeneration: the AMD2000 study.

    Science.gov (United States)

    Akagi-Kurashige, Yumiko; Tsujikawa, Akitaka; Yuzawa, Mitsuko; Ishibashi, Tatsuro; Nakanishi, Hideo; Nakatani, Eiji; Teramukai, Satoshi; Fukushima, Masanori; Yoshimura, Nagahisa

    2018-03-01

    In this study (AMD2000), we aimed to determine the visual prognosis of Japanese patients with age-related macular degeneration (AMD). This was a multicenter prospective observational cohort study. In total, 460 patients with AMD were recruited from April 2006 to March 2009 from 18 clinical trial sites in Japan. They were followed up for 5 years, as they continued to receive medical treatment. Of the 409 study eyes followed up for at least 1 year, 243 eyes (59.4%) were treated with photodynamic therapy (PDT) using verteporfin, and 58 eyes (14.2%) were treated with intravitreal injections of antivascular endothelial growth factor agents as the initial treatment. The mean best-corrected visual acuities (BCVA) for typical AMD (tAMD; 0.688 ± 0.498) and polypoidal choroidal vasculopathy (PCV; 0.451 ± 0.395) were significantly less at 2 years (tAMD, 0.779 ± 0.632, P macular edema as well as the lesion size was associated with 5-year maintenance of the baseline BCVA. In some patients, the diagnosis changed: of the 192 eyes initially diagnosed with typical AMD, 19 were newly diagnosed with PCV during follow-up. Maintaining the baseline BCVA over the long term is difficult in Japanese eyes with wet AMD.

  19. Ouabaina como Hormona

    Directory of Open Access Journals (Sweden)

    J. Hernando Ordoñez

    1996-04-01

    Full Text Available

    Comentario sobre su origen endógeno y sus aplicaciones terapéuticas

    Pocas drogas han sido más estudiadas que el grupo de los digitálicos, estrofantinas y ouabaina, cuyo estudio es objeto del presente trabajo.

    La ouabaina empezó a ser estudiada desde el siglo pasado. La primera referencia conocida corresponde a Pelikan, 1865 (1, como veneno que empleaban para las flechas en Gabón (Africa. (.

    (. Vinieron luego los trabajos de Fraser, 1869, (2, 3, 6, Polaillon, 1871 (4, Amaud, 1888 (5, Vaquez y Lutembacher, 1917 (7, Stoll, 1939 (8, Lapicque, 1929 (9, Wiggers, 1927 (10, Ytantos otros (11, 12, 13. En la obra de Kisch (14 aparecen más de 700 referencias bibliográficas sobre el particular.

    Ouabaina de origen endógeno. Purificación
    Durante muchos años se conoció la ouabaina como de origen vegetal, elaborada por las plantas Strophanthus Glaber(k-estrofantina,AcocantheraOuabaio(Ouabaina yStrophanthus Kombe (k-estrofantina y kestrofantósido. Una propiedad común a todos los digitálicos, estrofantina y ouabaina es que todos son inhibidores de la bomba de Na-K, encargada de regular la salida de Na y la entrada de K celular.

    Estudiando los inhibido res de esta bomba han encontrado en años recientes resultados extraordinarios en relación con el origen endógeno de algunos de estos inhibidores, entre ellos la ouabaina. Por considerarlos de extrema importancia y actualidad científica me permito citar algunos de ellos. Hamlyn y Manunta (15, 16, 17, 18, Y 19 hicieron estudios sobre el particular y lograron identificar en el plasma humano un compuesto igual a la ouabaina. Estos hallazgos fueron confirmados después por otros autores (20, 21, 22, 23 Y24.

    Ham bl yn (19 da varios argumentos que ponen en evidencia que el compuesto químico encontrado es ouabaina pura, y, lo que es más interesante, que tiene un origen endógeno. a Por espectroscopia de alta resoluci

  20. O direito como imperativo

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    Cloter Miglioriani

    1988-08-01

    Full Text Available We have examined one of the facets which Law presents to society, looking at the theme through a brief history of Law, in which Roman Law stands out, up to modem times, comparing current juridical systems such as the Continental System, Common Law, and Soviet Law. We have looked at Law from the viewpoint of society 's need to have basic mies for living together, with the juridical ruZe being one of the most important. We have highlighted the views of Hart and Kelsen on the foundations of the validity of Law. We have also considered the obligatoriness of Law; giving the point of view of tadbruch who, explaining his ''Theory of the Obligatoriness of Law ", concluded that the obligatoriness of Law can only be withdraw when there is a Clash between morals, law, use and social conventions. We have looked at the notion of the imperativeness of Law the central theme of the work -drawing on the views of Miguel Reale, for whom the juridical nonn cannot be reduced to a "command of a volitional nature", but rather the obligatory character of the juridical nonn arises from the pressure of social values. Del Vecchio, who is also quoted, recognized that imperativeness exists in the juridical norm, whether it is preceptive (a positive command or permissive. Also mentioned is the opinion of Tercio Sampaio Ferraz, for whom the juridical norm has imperativeness to the extent that the imposition of behaviour is unconditionally guaranteed. Foi feita a abordagem de uma das facetas com que o Direito se apresenta à sociedade, enfocando o tema a partir de um brevíssimo histórico do Direito, onde revela a fase romana, até os períodos modernos, com comparações dos sistemas jurídicos hodiernos, como o sistema continental, o da Commum Law e o soviético. Foi enfocado o Direito em face da necessidade sociedade em ter básicas de convivência, despontando a regra jurídica como das mais importantes. Foi dado destaque às posições de Hart e Kelsen, sobre os

  1. Risk factors for visual impairment and blindness amongst black adult diabetics receiving treatment at Government healthcare facilities in Mopani District, Limpopo province, South Africa.

    Science.gov (United States)

    Mabaso, Raymond G; Oduntan, Olalekan A

    2014-11-21

    Diabetes mellitus (DM) is a common systemic disease amongst Black South Africans. It may lead to diabetic retinopathy (DR), a common cause of visual impairment (VI) and blindness. DR may signifiantly increase the prevalence of VI and blindness. To assess risk factors for VI and blindness amongst a black diabetic South African population aged ≥ 40 years. The study was conducted in seven Government healthcare facilities (two hospitals, four clinics and one health centre) in Mopani District, Limpopo province, South Africa. This was a cross-sectional health facility-based quantitative study. Structured interviews were used to obtain information, which included sociodemographic profie, knowledge about DM and its ocular complications, presence of hypertension and accessibility to health facilities. Subsequently participants were examined for VI and blindness using an autorefractor, pinhole disc, ophthalmoscope and logMAR visual acuity chart. Anthropometric measurements (height, weight and waist) were also taken. Associations between 31 risk factors and VI as well as blindness were statistically examined. Participants (N = 225) included 161 women and 64 men aged 40-90 years (mean 61.5 ± 10.49 years); 41.3% of them had VI and 3.6% were blind. Cataracts (76.8%) and DR (7.1%) were the common causes of compensated VI and blindness. Risk factors that were associated with VI and blindness were age, monthly income, compliance with losing weight and physical activity. Findings suggest that lifestyle intervention and appropriate eyecare programmes may reduce VI and blindness in this population.

  2. Visual detection of glial cell line-derived neurotrophic factor based on a molecular translator and isothermal strand-displacement polymerization reaction.

    Science.gov (United States)

    Zhang, Li-Yong; Xing, Tao; Du, Li-Xin; Li, Qing-Min; Liu, Wei-Dong; Wang, Ji-Yue; Cai, Jing

    2015-01-01

    Glial cell line-derived neurotrophic factor (GDNF) is a small protein that potently promotes the survival of many types of neurons. Detection of GDNF is vital to monitoring the survival of sympathetic and sensory neurons. However, the specific method for GDNF detection is also un-discovered. The purpose of this study is to explore the method for protein detection of GDNF. A novel visual detection method based on a molecular translator and isothermal strand-displacement polymerization reaction (ISDPR) has been proposed for the detection of GDNF. In this study, a molecular translator was employed to convert the input protein to output deoxyribonucleic acid signal, which was further amplified by ISDPR. The product of ISDPR was detected by a lateral flow biosensor within 30 minutes. This novel visual detection method based on a molecular translator and ISDPR has very high sensitivity and selectivity, with a dynamic response ranging from 1 pg/mL to 10 ng/mL, and the detection limit was 1 pg/mL of GDNF. This novel visual detection method exhibits high sensitivity and selectivity, which is very simple and universal for GDNF detection to help disease therapy in clinical practice.

  3. Predictive Factors for the Occurrence of Visual and Ischemic Complications After Open Surgery for Paraclinoid Aneurysms of the Internal Carotid Artery.

    Science.gov (United States)

    Kikuta, Ken-Ichiro; Kitai, Ryuhei; Kodera, Toshihiko; Arishima, Hidetaka; Isozaki, Makoto; Hashimoto, Norichika; Neishi, Hiroyuki; Higashino, Yoshifumi; Yamada, Shinsuke; Yomo, Munenori; Awara, Kousuke

    2016-01-01

    To investigate the predictive factors for visual and ischemic complications after open surgery for paraclinoid aneurysms of the internal carotid artery (ICA). Thirty-eight consecutive patients with unruptured paraclinoid aneurysms of ICA operated on between 2009 and 2013 were included in this study. The male:female ratio was 6:32 and the ages ranged from 33 to 81 (mean: 60 ± 2). Twenty cases were asymptomatic and 18 had ophthalmological symptoms. The sizes of the aneurysms ranged from 2 to 35 mm (mean: 10.6 ± 9 mm). Twenty-three patients were treated by clipping and 15 by trapping with bypass (high-flow bypass in 11, and low-flow in 4). Twenty-four patients underwent removal of the anterior clinoid process. Among them, 8 underwent en bloc anterior clinoidectomy with a high-speed drill, and 16 had piecemeal excision with a microrongeur or ultrasonic bone curette. Intraoperative monitoring was performed using motor-evoked potentials (MEP) and visual-evoked potentials (VEP) in 27 and 15 cases, respectively. Complete obliteration of the aneurysm was achieved in 37 cases (97.4 %). The patency rate of bypass was 100 %. Postoperative worsening of visual acuity, including one case of blindness, was observed in six cases (11 %). Worsening of visual field defects occurred in 14 cases (38 %), but 10 of them were transient. Transient oculomotor nerve palsy occurred in six cases (15 %). Postoperative stroke was detected by diffusion-weighted imaging (DWI) in five cases (13 %), four of which were symptomatic. Statistical analysis showed that piecemeal anterior clinoidectomy was significantly safer than en bloc removal in preserving visual function. Trapping with high-flow bypass had a significantly greater risk of postoperative stroke than direct clipping. Intraoperative VEP monitoring might be useful for preventing postoperative worsening of visual function. Two-stage treatment with bypass and endovascular trapping might be safer than single-stage trapping

  4. Cataract Surgery Visual Outcomes and Associated Risk Factors in Secondary Level Eye Care Centers of L V Prasad Eye Institute, India.

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    Sumathi Matta

    Full Text Available To evaluate cataract surgery visual outcomes and associated risk factors in rural secondary level eye care centers of L V Prasad Eye Institute (LVPEI, India.The Eye Health pyramid of LVPEI has a network of rural secondary care centres (SCs and attached vision centres (VCs that provide high quality comprehensive eye care with permanent infrastructure to the most disadvantaged sections of society. The most common procedure performed at SCs is cataract surgery. We audited the outcome of a random sample of 2,049 cataract surgeries done from October 2009-March 2010 at eight rural SCs. All patients received a comprehensive ophthalmic examination, both before and after surgery. The World Health Organization recommended cataract surgical record was used for data entry. Visual outcomes were measured at discharge, 1-3 weeks and 4-11 weeks follow up visits. Poor outcome was defined as best corrected visual acuity <6/18.Mean age was 61.8 years (SD: 8.9 years and 1,133 (55.3% surgeries were performed on female patients. Pre-existing ocular co-morbidity was present in 165 patients (8.1%. The most common procedure was small incision cataract surgery (SICS with intraocular lens (IOL implantation (91.8%. Intraoperative complications were seen in 29 eyes (1.4%. At the 4-11 weeks follow-up visit, based on presenting visual acuity (PVA, 61.8% had a good outcome and based on best-corrected visual acuity (BCVA, 91.7% had a good outcome. Based on PVA and BCVA, those with less than 6/60 were only 2.9% and 1.6% respectively. Using multivariable analysis, poor visual outcomes were significantly higher in patients aged ≥70 (OR 4.63; 95% CI 1.61, 13.30, in females (OR 1.58; 95% CI 1.04, 2.41, those with preoperative comorbidities (odds ratio 4.68; 95% CI 2.90, 7.57, with intraoperative complications (OR 8.01; 95% CI 2.91, 22.04, eyes that underwent no IOL or anterior chamber-IOL (OR 12.63; 95% CI 2.65, 60.25 and those undergoing extracapsular cataract extraction (OR 9

  5. Análisis de la política petrolera venezolana durante el gobierno de Hugo Chávez como factor determinante de la Revolución Bolivariana (período 1999-2012)

    OpenAIRE

    Nariño Rodríguez, Valeria Isabel

    2013-01-01

    Desde 1999, la política petrolera se constituyó como base del proyecto político chavista conocido como la Revolución Bolivariana, e incluso se convirtió en el eje de la participación, polarización y de las relaciones entre los principales actores del oficialismo y de la oposición venezolana.

  6. La microalbuminuria como factor pronóstico en un grupo de pacientes hipertensos de una entidad de primer nivel de atención de Manizales (Colombia, 2010

    Directory of Open Access Journals (Sweden)

    Jonathan Andrés Arias

    2012-01-01

    Full Text Available Objetivo: Determinar el valor de la microalbuminuria en un grupo de pacientes hipertensos. Materiales y métodos: Se estudiaron pacientes inscritos en el programa de vigilancia y control de la hipertensión arterial de ASSBASALUD ESE (Manizales, Colombia, clasificados como de riesgo bajo y moderado. Se diseñó un estudio transversal para el análisis de los factores de riesgo asociados: dislipidemia, obesidad, diabetes mellitus, infarto agudo de miocardio relacionándolos con los niveles de microalbuminuria encontrados en la investigación. Resultados: El estudio se hizo con 86 pacientes hipertensos (76,7% mujeres. En 16,7% (Ic95%: 9,4-26,45 de ellos los niveles de microalbuninuria se encontraron alterados. Las cifras halladas estuvieron entre 95,1mg/dl, valor máximo, y una cifra mínima de 0,1mg/dl. El valor promedio fue de 11,77mg/dl. En 34,9% de los pacientes se registraron antecedentes patológicos, en 74,2% el antecedente fue dislipidemia y obesidad en el 32% de los casos. 64% de los pacientes tenían antecedentes familiares patológicos, hipertensión arterial en el 30,9% e infarto del miocardio en el 16,4%. Se encontró relación significativa entre microalbuminuria y el valor de índice de masa corporal (p=0,028. Conclusiones: La frecuencia de microalbuminuria positiva relacionada con dislipidemia fue similar a la obtenida en otros estudios. Se encontró una elevada prevalencia de microalbuminuria alterada en pacientes con dislipidemia. La frecuencia de microalbuminuria anormal encontrada en la población estudiada indica presencia de riesgo cardiovascular.

  7. Europa como cultura

    Directory of Open Access Journals (Sweden)

    Javier San Martín

    2012-02-01

    Full Text Available El presente texto tiene un origen muy concreto. El día 15 de marzo de 2002, con motivo de la Cumbre Europea de Barcelona, Jorge Semprún reflexionaba, en las páginas de un conocido diario madrileño, sobre el significado que para él tenía ser europeo. Para ello emprendía tres "viajes intelectuales" a Viena, Praga y Buchenwald, los tres de gran significado histórico y cultural. Dado el interés del texto y del momento, me pareció entonces oportuno glosar algunos aspectos de aquel artículo, primero, para subrayar el valor de la aportación de Semprún, luego para corregir alguna inexactitud de carácter biográfico, debida posiblemente a la rapidez de la traducción, y, tercero, para ampliar con algún comentario la valiosa contribución de Sempnín, sobre todo en lo que concierne al sentido de Europa. En este texto se toma aquel comentario como punto de partida.The origins of this text are very specific. On 15 March 2002, on the occasion of the European Summit in Barcelona, and on the pages of a well-known Madrid newspaper, Jorge Semprún reflected on the meaning that being European had for him. To do this, he embarked on three "intellectual journeys" to Vienna, Prague and Buchenwald, all three of great historical and cultural significance. Given the interest of the text and of the moment, I considered it appropriate to comment on aspects of the article -firstly, to underline the value of Semprún's contribution; secondly, to correct certain biographical inaccuracies, possibly due to a hasty translation; and thirdly, to complement Semprún's valuable contribution, essentially concerning the meaning of Europe. This text takes that comment as its starting point.

  8. Utilización del programa de visualización molecular RasMol como estrategia didáctica para la integración del contenido curricular "proteínas" Utilization of the molecular visualization program RasMol as a didactic strategy for the integration of the curricular content "proteins"

    Directory of Open Access Journals (Sweden)

    M.A. Riera

    2010-09-01

    Full Text Available Introducción. Los programas de visualización permiten profundizar el conocimiento teórico sobre la estructura proteica. Este trabajo tiene por finalidad familiarizar al alumno con el manejo del programa de visualización molecular RasMol v. 2.7.2 para el análisis de proteínas, ya que integra conocimientos previos y persigue otros objetivos generales de la formación universitaria. Materiales y métodos. El trabajo se contextualizó considerando el eje integrador de las materias. Además, se articuló con los contenidos conceptuales y procedimentales de la temática "Niveles estructurales de las proteínas". En primer lugar, se seleccionaron actividades que permitieran evaluar aspectos vinculados con la formación general pretendida para este nivel de la enseñanza formal, como expresión escrita y oral, interpretación de textos científicos en idioma inglés y manejo de base de datos bibliográficos. Resultados y conclusiones. El 70% de los alumnos pudo realizar las actividades de manera satisfactoria. La mayoría de los grupos enfatizó tanto las cuestiones teóricas como las netamente inherentes al manejo del programa. El 30% tuvo problemas de expresión oral y escrita. Se notaron algunas dificultades en la interpretación de los modelos teóricos planteados y en la interpretación del idioma inglés, pero también hubo desconocimiento previo de la temática y falta de iniciativa para la búsqueda de material complementario. Se propone la inclusión de algunas revisiones en idioma nativo, sin perjuicio de los textos en inglés, y ejemplos más sencillos de manera introductoria para los programas de visualización, con una paulatina incorporación de ejemplos más complejos que requieran lectura complementaria.Introduction. Visualizations programs allow to analyze deeply theoretical knowledge of protein structure. The aim of this work was to familiarize the students with the molecular visualization program RasMol v. 2.7.2 for protein

  9. Determination of Risk Factors and Treatment of Dry Eye Disease in Type 1 Diabetes Before Corneal Complications at Sindh Institute of Ophthalmology And Visual Sciences.

    Science.gov (United States)

    Shujaat, Shehnilla; Jawed, Muhammad; Memon, Shahzad; Talpur, Khalid Iqbal

    2017-01-01

    The objective of this study was to assess and determine the risk factors and treatment of dry eye disease in type 1 diabetes before any ocular surface or corneal complication occurs. This study was conducted at Sindh Institute of Ophthalmology And Visual Sciences, Hyderabad, Pakistan. Subjects and methods for observational study were undertaken at the Department of Ophthalmology Sindh Institute Of Ophthalmology And Visual Sciences, Hyderabad, Pakistan. Hundred confirmed cases of type 1 diabetes were included in the study by non probability convenience sampling. Tear film breakup time and schrimer test were carried out to determine dry eye disease. Data was collected by self-prepared questionnaire and entered and analyzed by using Statistical Program for Social Sciences (SPSS, version 20.0). The frequencies and percentage were recorded and any associations with predisposing factors were statistically analyzed by t test. Out of hundred patients, 71 (71%) were found to have dry eyes (Pdry eye disease (Pdry eyes in males and females. Long duration was found to be related with increased occurrence of dry eyes (Pdry eyes. There is marked increase in frequency/ risk of developing dry eye disease in type 1 diabetes patients. Therefore, it is recommended to have periodic ophthalmic examination for type 1 diabetic patients.

  10. Frequency, prevalence, incidence and risk factors associated with visual hallucinations in a sample of patients with Parkinson's disease: a longitudinal 4-year study.

    Science.gov (United States)

    Gibson, G; Mottram, P G; Burn, D J; Hindle, J V; Landau, S; Samuel, M; Hurt, C S; Brown, R G; M Wilson, K C

    2013-06-01

    To examine the prevalence, incidence and risk factors associated with visual hallucinations (VHs) amongst people suffering from Parkinson's disease (PD). We recruited 513 patients with PD from movement disorder and PD clinics within three sites in the UK. Patients were interviewed using a series of standardised clinical rating scales at baseline, 12, 24 and 36 months. Data relating to VHs were collected using the North-East Visual Hallucinations Interview. Prevalence rates for VHs at each assessment were recorded. Associations were determined using multiple regression analysis. Cross-sectional prevalence rates for VHs at baseline, 12, 24 and 36 months indicated VHs in approximately 50% of patients. A cumulative frequency of 82.7% of cases at the end of the study period exhibited VHs. The incidence rate for VHs was 457 cases per 1000 population. Longer disease duration, greater impairment in activities of daily living and higher rates of anxiety were most commonly associated with VHs. No factors predictive of VHs could be ascertained. When examined longitudinally, VHs affect more patients than is commonly assumed in cross-sectional prevalence studies. Clinicians should routinely screen for VHs throughout the disease course. Disease duration, impairment in activities of daily living and anxiety presented as co-morbidities associated with VHs in PD, and therefore those presenting with VHs should be screened for anxiety disorder and vice versa. Copyright © 2012 John Wiley & Sons, Ltd.

  11. Sangrado transvaginal durante el embarazo, como factor de riesgo para isoinmunización al antígeno Rhesus-D Transvaginal bleeding during pregnancy associated with Rhesus-D isoimmunization

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    Edgar Hernández-Andrade

    2003-12-01

    Full Text Available OBJETIVO: Evaluar el sangrado transvaginal en cualquier etapa del embarazo como factor de riesgo para la sensibilización al antígeno eritrocitario Rhesus-D en mujeres previamente no isoinmunizadas (Rh(-NI, como una alternativa para la aplicación rutinaria de gama-globulina anti-D a la semana 28 de gestación. MATERIAL Y MÉTODOS: Estudio de casos y controles consecutivos, efectuado en el Instituto Nacional de Perinatología de la Ciudad de México, en el periodo de 1995 a 2001.Casos (n=24, pacientes Rh(-NI que mostraron seroconversión positiva de anticuerpos contra el componente D del antígeno Rh durante el embarazo o en el puerperio inmediato. Controles (n=24, mujeres Rh(-NI, captadas consecutivamente y que no presentaron seroconversión positiva de anticuerpos Anti-D. En todos los casos los recién nacidos fueron Rh positivos. Ninguna de las pacientes recibió inmunoprofilaxis Anti-D a la semana 28 de gestación. Se evaluaron periodos de sangrado transvaginal en cualquier etapa del embarazo y antes del inicio del trabajo de parto. Se estimaron razones de probabilidad e intervalos de confianza de 95%. RESULTADOS: La presencia de sangrado transvaginal se observó en 18/24 (75% de los casos y en 5/24 de los controles (20%. La actividad uterina pretérmino y la amenaza de aborto fueron las causas más frecuentes identificadas como causa de este sangrado. La presencia de uno solo de estos eventos durante cualquier etapa del embarazo aumentó 11.4 veces (IC 95% 2.9-44.0 el riesgo de sensibilización al antígeno eritrocitario Rh-D, y si el sangrado se presentó después de la semana 20 el riesgo se incrementó 5.0 veces (IC 95% 1.3-19.1. La presencia de sangrado antes de la semana 20 no se asoció con un incremento significativo en el riesgo de sensibilización (OR=7.6, IC 95% 0.8-69.5. CONCLUSIONES: En presencia de cualquier sangrado transvaginal durante el embarazo en una paciente Rh-NI se recomienda la aplicación profiláctica de gama

  12. El CO2 como disolvente y como reactivo

    OpenAIRE

    La Franca Pitarresi, Vincenzo Rosario

    2016-01-01

    Existen numerosas ventajas asociada con el uso de CO2 , tanto como disolvente que como reactivo, y todas se pueden resumir en cuatro categorías generales: beneficios ambiental, beneficios de salud y seguridad, beneficios en el procedimiento y beneficios químicos. Los procesos que implican el CO2 como disolvente no aumentaría las emisiones de CO2, más bien proporcionaría una oportunidad para el reciclaje de CO2 residual. Además, los esfuerzos para secuestrar el CO2 producido de los gases de co...

  13. Estudio de los factores que intervienen en el proceso de enseñanza-aprendizaje del español como segunda lengua en el marco escolar : plan de intervención para alumnos inmigrantes marroquíes de educación secundaria obligatoria

    OpenAIRE

    Muñoz López, Belén

    2003-01-01

    Esta investigación se estructura en seis capítulos: en el primero, explicamos los objetivos, la metodología y el plan de investigación adoptado para la realización de la presente tesis; en el segundo presentamos una investigación de corte etnográfico en la que realizamos un estudios del contexto socioeducativo y de la identidad como factores que determinan el proceso de enseñanza-aprendizaje del español como segunda lengua para alumnos inmigrantes marroquíes de Educación Secundaria Obligatori...

  14. Infant Visual Recognition Memory

    Science.gov (United States)

    Rose, Susan A.; Feldman, Judith F.; Jankowski, Jeffery J.

    2004-01-01

    Visual recognition memory is a robust form of memory that is evident from early infancy, shows pronounced developmental change, and is influenced by many of the same factors that affect adult memory; it is surprisingly resistant to decay and interference. Infant visual recognition memory shows (a) modest reliability, (b) good discriminant…

  15. El empleo como factor de reducción de la pobreza : un análisis comparativo del desempeño económico de México y Brasil

    OpenAIRE

    Herrera Moreno, Paola

    2010-01-01

    Las reformas económicas emprendidas por América Latina a partir de la década de los ochenta marcaron un importante parteaguas en la nueva carrera de la región hacia el desarrollo. Particularmente, treinta años después, las economías de Brasil y México son muy diferentes, sin embargo, temas como la generación de empleo y el combate a la pobreza continúan representando grandes retos en la búsqueda del desarrollo y el bienestar de ambas sociedades. La presente investigación tiene como objetivo r...

  16. O Fator Acidentário Previdenciário como instrumento epidemiológico de controle de riscos do trabalho The work accident and social security factor as an epidemiologic tool for controlling risks in work settings

    Directory of Open Access Journals (Sweden)

    Heleno Rodrigues Corrêa Filho

    2005-12-01

    Full Text Available Este trabalho discute a validade da Resolução Ministerial n° 1.236, do Conselho Nacional de Previdência Social, que dispõe sobre padrões de freqüência, gravidade e custo no cálculo do Fator Acidentário Previdenciário. Esse fator multiplicará alíquotas de impostos sobre riscos decorrentes do trabalho, podendo reduzir em até 50% o imposto devido por empresas que aplicarem controles coletivos eficientes na sua prevenção. Analisa-se a consistência do método adotado para selecionar os grupos de morbidade destinados a construir os vetores de freqüência, gravidade e custo, bem como a validade da aplicação dos conceitos epidemiológicos à produção econômica geradora da morbidade. Contrapõem-se as listas tradicionais de morbidade aos critérios epidemiológicos móveis, como alternativas distintas que têm sido adotadas para resolução de conflitos sobre a existência de nexo causal entre doenças, lesões, acidentes e os modos de produção. Apoiam-se os grupos de riscos epidemiológicos móveis que correspondam às doenças e lesões cujo risco epidemiológico, medido por um intervalo de confiança de 99%, esteja acima do valor unitário. Conclui-se que o método proposto para determinação do Fator multiplicador atende aos requisitos epidemiológicos de definição de cálculo de riscos e validade, uma vez que é assegurada sua revisão periódica para questões de sensibilidade e especificidade. Alerta-se que não se deve confiar unicamente nos métodos como instrumentos unilaterais de ação social para avaliação, controle e prevenção dos males associados ao trabalho nas modalidades de produção do nosso desenvolvimento. Os métodos são instrumentos que devem ser considerados na tomada de decisão e na ação política que se deseja imprimir.This report discusses the validity of a Brazilian Ministry Decree that establishes standards for calculating a multiplying Factor for Accidents and Social Security. The index

  17. Uso de medicamentos como fator de risco para fratura grave decorrente de queda em idosos Medication as a risk factor for falls resulting in severe fractures in the elderly

    Directory of Open Access Journals (Sweden)

    Evandro da Silva Freire Coutinho

    2002-10-01

    Full Text Available Quedas seguidas de fraturas entre idosos constituem um importante problema de saúde pública. Um estudo caso-controle foi conduzido para avaliar o papel do uso de um conjunto de medicamentos, como fator de risco para esses acidentes entre pessoas com 60 anos ou mais, na cidade do Rio de Janeiro, Brasil. Cento e sessenta e nove casos de internação por fratura conseqüente a queda, e 315 controles hospitalares foram pareados por idade, sexo e hospital. Odds ratios (OR, ajustados por fatores potenciais de confusão, foram obtidos utilizando-se regressão logística condicional. Observou-se um aumento no risco desses acidentes para o uso de drogas bloqueadoras dos canais de cálcio (OR = 1,96, 1,16-3,30 e benzodiazepínicos (OR = 2,09, 1,08-4,05, e uma redução para o uso de diuréticos (OR = 0,40, 0,20-0,80. Antiácidos, digitálicos e laxantes mostraram-se associados a uma redução do risco de fraturas por quedas, cuja significância estatística atingiu níveis limítrofes (0,05 Falls leading to fractures among the elderly are a major public problem. A case-control study was conducted on the use of certain drugs as a risk factor for hospitalization due to fractures after falls among individuals aged 60 years or over in the city of Rio de Janeiro, Brazil. One hundred sixty-nine cases and 315 in-patient controls were matched by age, sex, and hospital. Odds ratios (OR adjusted for potential confounders were calculated using conditional logistic regression. Increased risk of such accidents was found for calcium channel antagonists (OR = 1.96, 1.16-3.30 and benzodiazepines (OR = 2.09, 1.08-4.05, and decreased risk was associated with diuretics (OR = 0.40, 0.20-0.80. Antacids, digitalis, and laxatives were associated with reduced risk of fractures after falls that reached borderline statistical significance (0.05 < p < 0.10. The findings highlight the need to weigh risks and benefits of medication in the elderly. It is also important to advise

  18. PRELIMINARY FACTOR ANALYSIS OF VISUAL COGNITION AND MEMORY. STUDIES IN CINE-PSYCHOMETRY, FINAL REPORT, PART I.

    Science.gov (United States)

    SEIBERT, WARREN F.; AND OTHERS

    PRELIMINARY ANALYSES WERE UNDERTAKEN TO DETERMINE THE POTENTIAL CONTRIBUTION OF MOTION PICTURE FILMS TO FACTOR ANALYTIC STUDIES OF HUMAN INTELLECT. OF PRIMARY CONCERN WERE THE OPERATIONS OF COGNITION AND MEMORY, FORMING TWO OF THE FIVE OPERATION COLUMNS OF GUILFORD'S "STRUCTURE OF INTELLECT." THE CORE REFERENCE FOR THE STUDY WAS DEFINED…

  19. Comparison of three techniques for evaluating skin erythemal response for determination of sun protection factors of sunscreens: high resolution laser Doppler imaging, colorimetry and visual scoring.

    Science.gov (United States)

    Wilhelm, K P; Kaspar, K; Funkel, O

    2001-04-01

    Sun protection factor (SPF) measurement is based on the determination of the minimal erythema dose (MED). The ratio of doses required to induce a minimal erythema between product-treated and untreated skin is defined as SPF. The aim of this study was to validate the conventionally used visual scoring with two non-invasive methods: high resolution laser Doppler imaging (HR-LDI) and colorimetry. Another goal was to check whether suberythemal reactions could be detected by means of HR-LDI measurements. Four sunscreens were selected. The measurements were made on the back of 10 subjects. A solar simulator SU 5000 (m.u.t., Wedel, Germany) served as radiation source. For the visual assessment, the erythema was defined according to COLIPA as the first perceptible, clearly defined unambiguous redness of the skin. For the colorimetric determination of the erythema, a Chromameter CR 300 (Minolta, Osaka, Japan) was used. The threshold for the colorimetry was chosen according to the COLIPA recommendation as an increase of the redness parameter delta a* = 2.5. For the non-contact perfusion measurements of skin blood flow, a two-dimensional high resolution laser Doppler imager (HR-LDI) (Lisca, Linköping, Sweden) was used. For the HR-LDI measurements, an optimal threshold perfusion needed to be established. For the HR-LDI measurements basal perfusion +1 standard deviation of all basal measurements was found to be a reliable threshold perfusion corresponding to the minimal erythema. Smaller thresholds, which would be necessary for detection of suberythemal responses, did not provide unambiguous data. All three methods, visual scoring, colorimetry and HR-LDI, produced similar SPFs for the test products with a variability of colorimetry are suitable, reliable and observer-independent methods for MED determination. However, they do not provide greater sensitivity and thus do not result in lower UV dose requirements for testing.

  20. Math for visualization, visualizing math

    NARCIS (Netherlands)

    Wijk, van J.J.; Hart, G.; Sarhangi, R.

    2013-01-01

    I present an overview of our work in visualization, and reflect on the role of mathematics therein. First, mathematics can be used as a tool to produce visualizations, which is illustrated with examples from information visualization, flow visualization, and cartography. Second, mathematics itself

  1. Visual art and visual perception

    NARCIS (Netherlands)

    Koenderink, Jan J.

    2015-01-01

    Visual art and visual perception ‘Visual art’ has become a minor cul-de-sac orthogonal to THE ART of the museum directors and billionaire collectors. THE ART is conceptual, instead of visual. Among its cherished items are the tins of artist’s shit (Piero Manzoni, 1961, Merda d’Artista) “worth their

  2. Relationship Between Visual Acuity and Retinal Thickness During Anti-Vascular Endothelial Growth Factor Therapy for Retinal Diseases.

    Science.gov (United States)

    Ou, William C; Brown, David M; Payne, John F; Wykoff, Charles C

    2017-08-01

    To investigate the relationship between best-corrected visual acuity (BCVA) and central retinal thickness (CRT) in eyes receiving ranibizumab for 3 common retinal diseases. Retrospective analysis of clinical trial data. Early Treatment Diabetic Retinopathy Study BCVA and spectral-domain optical coherence tomography-measured CRT of 387 eyes of 345 patients enrolled in 6 prospective clinical trials for management of neovascular age-related macular degeneration (AMD), diabetic macular edema (DME), and retinal vein occlusion (RVO) were evaluated by Pearson correlation and linear regression. At baseline, there was a small correlation between BCVA and CRT in pooled AMD trial data (r = -0.24). A medium correlation was identified in pooled DME trial data (r = -0.42). No correlation was found in pooled RVO trial data. At month 12, no correlation was found between changes from baseline in BCVA and CRT in pooled AMD trial data. Medium correlations were identified in both pooled DME (r = -0.45) and pooled RVO (r = -0.35) trial data at month 12. Changes in BCVA and CRT associated with edema recurrence upon transition from monthly to pro re nata (PRN) dosing were correlated in AMD (r = -0.27) and RVO (r = -0.72) trials, but not in DME trial data. DME demonstrated a convincing relationship between BCVA and CRT. Correlations appear to be more complex in AMD and RVO. At the inflection point between monthly and PRN dosing, when recurrence of edema is anticipated in many patients, CRT appears strongly correlated with loss of BCVA in RVO. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. Disparities in eye care utilization among the United States adults with visual impairment: findings from the behavioral risk factor surveillance system 2006-2009.

    Science.gov (United States)

    Chou, Chiu-Fang; Barker, Lawrence E; Crews, John E; Primo, Susan A; Zhang, Xinzhi; Elliott, Amanda F; McKeever Bullard, Kai; Geiss, Linda S; Saaddine, Jinan B

    2012-12-01

    To estimate the prevalence of annual eye care among visually impaired United States residents aged 40 years or older, by state, race/ethnicity, education, and annual income. Cross-sectional study. In analyses of 2006-2009 Behavioral Risk Factor Surveillance System data from 21 states, we used multivariate regression to estimate the state-level prevalence of yearly eye doctor visit in the study population by race/ethnicity (non-Hispanic white, non-Hispanic black, Hispanic, and other), annual income (≥$35,000 and education ( high school). The age-adjusted state-level prevalence of yearly eye doctor visits ranged from 48% (Missouri) to 69% (Maryland). In Alabama, Colorado, Indiana, Iowa, New Mexico, and North Carolina, the prevalence was significantly higher among respondents with more than a high school education than among those with a high school education or less (P education, and income, we also found significant disparities in the prevalence of yearly eye doctor visits among states. Among visually impaired US residents aged 40 or older, the prevalence of yearly eye examinations varied significantly by race/ethnicity, income, and education, both overall and within states. Continued and possibly enhanced collection of eye care utilization data, such as we analyzed here, may help states address disparities in vision health and identify population groups most in need of intervention programs. Copyright © 2012 Elsevier Inc. All rights reserved.

  4. A condicionalidade como zona conceitual

    Directory of Open Access Journals (Sweden)

    Taísa Peres de OLIVEIRA

    Full Text Available RESUMO Neste trabalho avaliam-se diferentes padrões de construções condicionais no português a partir dos parâmetros de condicionalidade. O objetivo principal é mostrar como a categoria está internamente organizada não apenas em termos de um núcleo prototípico, mas mostrando como os exemplares mais periféricos se relacionam a ele. As bases teóricas deste trabalho assentam-se sobre concepções funcional-cognitivistas, nos termos de Bybee (2010 e Dancygier (1998, especialmente considerando a relativa instabilidade da gramática e a fluidez da categoria. As reflexões principais apontam a condicionalidade como uma categoria bastante complexa que serve de/como abrigo de múltiplas construções.

  5. A specific and sensitive method for visualization of tumor necrosis factor in the murine central nervous system

    DEFF Research Database (Denmark)

    Lambertsen, K L; Drøjdahl, N; Owens, T

    2001-01-01

    -PCR and Western blot analysis on homogenates prepared from microdissected brain regions. Advantages and disadvantages of the methods are discussed with emphasis on the specificity and sensitivity of the histological procedures. Our strategy for detection of TNF mRNA and protein provides a solid basis...... for clarifying the cellular synthesis, regulation and function of TNF in the normal, injured or diseased CNS. Furthermore, the methodology can readily be applied in studies of other cytokines and growth factors in the CNS....

  6. El género, la edad, la formación profesional y la experiencia docente como factores diferenciadores del desempeño de los profesores en las evaluaciones adelantadas por los estudiantes de la universidad

    Directory of Open Access Journals (Sweden)

    JUAN VICENTE ORTIZ FRANCO

    2013-11-01

    las que se comprueban los desempeños según género, mostraron diferencias entre hombres y mujeres en todos los factores: actitudinal, docencia, motivacional y disciplinar, siendo superior el desempeño de las mujeres docentes que el de los hombres. Las hipótesis en donde se comprueba el desempeño de los profesores según el título último alcanzado y que evidencia su nivel de preparación, muestra diferencias entre Técnicos y Licenciados, en donde los licenciados muestran el mayor rendimiento en el desempeño. Con relación a las hipótesis planteadas frente a la experiencia en años de ejercicio docente, se observa diferencia significativa en el desempeño pedagógico, lo cual permite inferir que a mayor experiencia en el campo de la docencia, se mejora y es un factor favorable al momento de ser calificado el desempeño de los profesores. La edad no incide en la calificación favorable por parte de los estudiantes en el momento de emitir un juicio sobre buena o mala docencia; se exceptúa aquellos grupos de rangos de edad inclinados hacia un extremo de edad avanzada. En cuanto a los años laborados éstos se constituyen en factores favorables para alcanzar un mejor desempeño pedagógico. Así mismo el tener mayor edad y mayor título académico no incide en el desempeño docente. El obtener las calificaciones más bajas en el desempeño pedagógico, permite observarlo como un factor determinante en la calificación favorable de los estudiantes y probablemente en una de las características de mayor peso que incide en el rendimiento. La relación entre años laborados y cada uno de los factores evaluados presente asociación significativa con el desempeño pedagógico. Así mismo no hay diferencia significativa en los desempeños docentes entre rangos de edad y último título.   

  7. Aspectos das práticas alimentares e da atividade física como determinantes do crescimento do sobrepeso/obesidade no Brasil Dietary and physical activity factors as determinants of the increase in overweight/obesity in Brazil

    Directory of Open Access Journals (Sweden)

    Cristina Pinheiro Mendonça

    2004-06-01

    Full Text Available Os dados acerca do sobrepeso/obesidade na população brasileira demonstram um crescimento na sua prevalência entre as décadas de 70 e 90. Os dois aspectos mais apresentados como relacionados a este quadro têm sido mudanças no consumo alimentar, com aumento do fornecimento de energia pela dieta e redução da atividade física, configurando um "estilo de vida ocidental contemporâneo". Este artigo tem por objetivo identificar e avaliar alguns indicadores que se correlacionam com mudanças nas práticas alimentares e de atividade física na população brasileira nos últimos trinta anos. Apesar da carência de dados detalhados, os fatores que podem estar contribuindo para o quadro em tela incluem: migração interna; alimentação fora de casa; crescimento na oferta de refeições rápidas; mudanças no trabalho; meios de deslocamento; e equipamentos domésticos. Faltam informações mais detalhadas sobre as práticas alimentares e o padrão de atividade física no Brasil, em associação a dados antropométricos, para uma melhor explicação dessa relação. Há necessidade de projetos e programas intersetoriais que tenham metas bem definidas e que garantam a adesão da população a um estilo de vida saudável na perspectiva do controle do crescimento da prevalência do sobrepeso/obesidade no país.Data from Brazilian national surveys conducted since the 1970s have indicated an increase in the prevalence of overweight/obesity. The two most frequently cited causes of this trend have been dietary changes and reduction in physical activity, characterizing a "contemporary Western lifestyle". The objective of this paper is to identify and assess some indicators associated with changes in eating habits and physical activity patterns in the Brazilian population in the last 30 years. Despite the lack of detailed data, the following factors appear to play an important role in the process: internal migration; dining out; increased consumption of

  8. Prevalence and causes of blindness and visual impairment and their associated risk factors, in three tribal areas of Andhra Pradesh, India.

    Science.gov (United States)

    Singh, Nakul; Eeda, Shiva Shankar; Gudapati, Bala Krishna; Reddy, Srinivasa; Kanade, Pushkar; Shantha, Ghanshyam Palamaner Subash; Rani, Padmaja Kumari; Chakrabarti, Subhabrata; Khanna, Rohit C

    2014-01-01

    To assess the prevalence of blindness and visual impairment (VI), their associated causes and underlying risk factors in three tribal areas of Andhra Pradesh, India and compare this data in conjunction with data from other countries with low and middle income settings. Using a validated Rapid Assessment of Avoidable Blindness methodology, a two stage sampling survey was performed in these areas involving probability proportionate to size sampling and compact segment sampling methods. Blindness, VI and severe visual impairment (SVI) were defined as per the WHO guidelines and Indian definitions. Based on a prior enumeration, 7281 (97.1%) subjects were enrolled (mean age = 61.0+/-7.9 years). Based on the presenting visual acuity (PVA), the prevalences of VI, SVI and blindness were 16.9% (95% CI: 15.7-18.1), 2.9% (95% CI: 2.5-3.4), and 2.3% (95% CI: 1.9-2.7), respectively. When based on the Pinhole corrected visual acuity (PCVA), the prevalences were lower in VI (6.2%, 95% CI: 5.4-6.9), SVI (1.5%, 95% CI: 1.2-1.9) and blindness (2.1%, 95% CI: 1.7-2.5). Refractive error was the major cause of VI (71.4%), whereas, cataract was the major cause of SVI and blindness (70.3%). Based on the PVA, the odds ratio (OR) of blindness increased in the age groups of 60-69 years (OR = 3.8, 95% CI: 2.8, 5.1), 70-79 years (OR = 10.6, 95% CI: 7.2, 15.5) and 80 years and above (OR = 30.7, 95% CI: 19.2, 49). The ORs were relatively higher in females (OR = 1.3, 95% CI: 1.0, 1.6) and illiterate subjects (OR = 4.3, 95% CI: 2.2, 8.5), but lower in those wearing glasses (OR = 0.2, 95% CI: 0.1, 0.4). This is perhaps the first study to assess the prevalence of blindness and VI in these tribal regions and the majority of the causes of blindness and SVI were avoidable (88.5%). These findings may be useful for planning eye care services in these underserved regions.

  9. Flow visualization

    CERN Document Server

    Merzkirch, Wolfgang

    1974-01-01

    Flow Visualization describes the most widely used methods for visualizing flows. Flow visualization evaluates certain properties of a flow field directly accessible to visual perception. Organized into five chapters, this book first presents the methods that create a visible flow pattern that could be investigated by visual inspection, such as simple dye and density-sensitive visualization methods. It then deals with the application of electron beams and streaming birefringence. Optical methods for compressible flows, hydraulic analogy, and high-speed photography are discussed in other cha

  10. La lengua inglesa como neolengua

    Directory of Open Access Journals (Sweden)

    Fernando BELTRÁN LLAVADOR

    2009-11-01

    Full Text Available RESUMEN: El artículo examina algunos usos y abusos de la lengua inglesa en la actualidad en el contexto de la globalización. Se define la neolengua, se ofrecen similitudes de la misma en el lenguaje publicitario en España, se trazan sus orígenes y se apuntan algunos antecedentes en la historia de la literatura inglesa, al tiempo que se ilustran ejemplos de variantes contemporáneas de la misma bajo la denominación de «nukespeak», especialmente abundantes en el discurso de los conflictos bélicos. La lengua inglesa está indisociablemente unida a complejos factores de orden económico, tecnológico y cultural que afectan a su misma morfología. Por otra parte, la presencia ubicua de la lengua inglesa, como idioma global, opera sobre las estructuras de sentimiento, pensamiento y acción de los ciudadanos en todo el mundo. Para los profesionales de la enseñanza del idioma inglés, ello comporta la obligación de discernir y resistir sus efectos potencialmente perversos al tiempo que siguen promoviendo sus valiosos beneficios culturales.ABSTRACT: Contemporary uses and abuses of the English language are examined in the context of complex issues and globalization trends. The term «newspeak» is defined, similitudes of it are found today in the language of advertising in Spain, its origins are traced back and antecedents are located in the history of English literature, while the presence of new modalities of the Orwellian reductionist language, such as «nukespeak», is illustrated within the language of warfare. The English language is inextricably bound up with economical, technological and cultural factors which affect its very morphology just as much as the pervasive influence of English as a global language affects the structures of feeling, thought and action of citizens all over the world, which poses an obligation on the part of EFL teachers to discern and resist its ill effects while they promote its still highly valuable cultural

  11. Visual field

    Science.gov (United States)

    ... your visual field. How the Test is Performed Confrontation visual field exam. This is a quick and ... to achieve this important distinction for online health information and services. Learn more about A.D.A. ...

  12. Violência física entre parceiros íntimos na gestação como fator de risco para a má qualidade do pré-natal Violencia física entre parejas íntimas en la gestación como factor de riesgo para la mala calidad del prenatal Physical intimate partner violence during gestation as a risk factor for low quality of prenatal care

    Directory of Open Access Journals (Sweden)

    Claudia Leite Moraes

    2010-08-01

    Full Text Available OBJETIVO: Avaliar a violência física entre parceiros íntimos durante a gestação como fator de risco independente para a má qualidade da assistência pré-natal. MÉTODOS: Estudo transversal realizado em três maternidades públicas do município do Rio de Janeiro, RJ. As 528 puérperas incluídas no estudo foram selecionadas em processo de amostragem aleatória simples dentre o conjunto de nascidos vivos a termo em 2000. As informações sobre a assistência pré-natal foram obtidas a partir do cartão da gestante e por meio de entrevistas face a face. Para a avaliação da qualidade da assistência pré-natal utilizou-se o índice de Kotelchuck. Para a identificação das situações de violência, foi utilizada a versão brasileira do instrumento Revised Conflict Tactics Scales. Utilizou-se a regressão logística não condicional para avaliar o efeito da exposição, após controle de variáveis de confusão. RESULTADOS: Mesmo após o ajuste por variáveis socioeconômicas, demográficas, reprodutivas e relativas aos hábitos de vida do casal, a violência física entre parceiros íntimos durante a gestação permaneceu associada à má qualidade da assistência pré-natal. Mulheres que relataram ter sido vítimas de abuso físico durante a gestação possuíam 2,2 vezes mais chance de apresentar uma assistência pré-natal inadequada do que as sem história de violência física. CONCLUSÕES: Os resultados indicam a necessidade do rastreamento de situações de conflito familiar desde o início do pré-natal visando o seu enfrentamento e uma maior adesão das gestantes vitimizadas ao acompanhamento.OBJETIVO: Evaluar la violencia física entre parejas íntimas durante la gestación como factor de riesgo independiente para la mala calidad de la asistencia prenatal. MÉTODOS: Estudio transversal realizado en tres maternidades públicas del municipio de Rio de Janeiro, Sureste de Brasil. Las 528 puérperas incluidas en el estudio fueron

  13. Biodisponibilidade do ferro como fator de proteção contra anemia entre crianças de 12 a 16 meses Iron bioavailability as a protective factor against anemia among children aged 12 to 16 months

    Directory of Open Access Journals (Sweden)

    Márcia Regina Vitolo

    2007-02-01

    Full Text Available OBJETIVO: Este estudo investiga os fatores dietéticos determinantes da ausência de anemia entre lactentes de famílias de baixo nível socioeconômico submetidos a um programa de intervenção nutricional, bem como a adequação do consumo de ferro de acordo com as recomendações. METODOLOGIA: O estudo compreendeu 369 crianças pertencentes a uma coorte do município de São Leopoldo (RS, as quais foram randomizadas ao nascimento para constituírem dois grupos: intervenção e controle. O grupo intervenção foi submetido a orientações dietéticas no primeiro ano de vida, com visitas domiciliares mensais, e o grupo controle foi visitado aos 6 e 12 meses, sem intervenção dietética. Ao final do primeiro ano de vida, realizou-se inquérito alimentar recordatório de 24 horas. O diagnóstico de anemia foi determinado pelo nível de hemoglobina inferior a 11 g/dL. As dietas das crianças foram classificadas de acordo com a biodisponiblidade do ferro presente. RESULTADOS: A prevalência de anemia encontrada neste estudo foi de 63,7%. A proporção de crianças com consumo adequado em relação às recomendações foi estatisticamente mais elevada no grupo sem anemia (26,8% do que no grupo com anemia (17,7%. As crianças que não apresentaram anemia mostraram maior consumo de ferro (p = 0,019, vitamina C (p = 0,001, densidade energética no jantar (p = 0,006, densidade de ferro por 1.000 calorias (p = 0,045, e 16,3% delas apresentaram dieta com alta biodisponibilidade em ferro (p = 0,002. CONCLUSÕES: A prática alimentar que garante alta biodisponibilidade de ferro protege a criança contra anemia e pode ser usada como proposta de intervenção na rede básica de saúde e no âmbito das secretarias municipais de educação infantil.OBJECTIVE: This study investigates the nutritional factors that determine the absence of anemia in infants from families with a low socioeconomic background submitted to a nutrition intervention program, as well as

  14. Peer and sibling substance use: predictors of substance use among adolescents in Mexico El uso de sustancias por pares y hermanos como factor pronóstico del uso de sustancias por adolescentes en México

    Directory of Open Access Journals (Sweden)

    William Latimer

    2004-04-01

    de 1998. La participación en el estudio fue voluntaria, y las respuestas fueron confidenciales. Mediante análisis de regresión logística se estimó la asociación entre el uso de drogas por los pares y hermanos por un lado, y por el otro el diagnóstico de abuso o dependencia del alcohol y el uso de sustancias distintas del alcohol en algún momento de la vida. RESULTADOS: Los estudiantes cuyos hermanos o pares ingerían bebidas alcohólicas y consumían otras drogas mostraron mayores probabilidades de satisfacer los criterios estándares de abuso o dependencia del alcohol, según los define el Manual diagnóstico y estadístico de enfermedades mentales, cuarta edición (MDE-IV, y de haber consumido drogas distintas del alcohol. Después de controlado el efecto de posibles factores de confusión, los adolescentes con los niveles más altos de abuso de sustancias por parte de sus pares se mostraron ocho veces más propensos a satisfacer los criterios de abuso o dependencia del alcohol y cuatro veces más propensos a consumir otros tipos de sustancias. Los adolescentes cuyos hermanos consumían drogas tenían una probabilidad dos veces mayor de satisfacer los criterios de abuso o dependencia del alcohol y una probabilidad 2,5 veces mayor de consumir drogas en comparación con jóvenes cuyos hermanos no consumían ninguna sustancia. CONCLUSIONES: Tal como indican otros resultados obtenidos con adolescentes en Estados Unidos de América, el uso de sustancias por los pares y hermanos es un factor de riesgo de consumo de sustancias en escolares en México. Estos últimos podrían beneficiarse de estrategias preventivas cuya eficacia en jóvenes estadounidenses se haya demostrado.

  15. Reflexión respecto de la conexión entre la disciplina del diseño y la audiovisual, como factor estratégico de desarrollo

    OpenAIRE

    Bertolotto Navarrete, Laura; Hetz, Katherine

    2018-01-01

    El presente artículo pretende reflexionar respecto al creciente rol estratégico del Diseño Gráfico en conjunto con lo Audiovisual y su contribución al desarrollo regional frente a la globalización como proceso de cambio continuo. La relación entre diseño y medios de comunicación amplía ciertas concepciones propias del diseño, donde lo audiovisual, como producto final de la interacción de lo que se ve con lo que se escucha, complementa al diseño ampliando su rango de efectividad en el proceso ...

  16. Transtornos mentais como fatores de risco para o desenvolvimento de abuso/dependência de cocaína: estudo caso-controle Mental disorders as risk factors for the development of cocaine abuse/dependence: case-control study

    Directory of Open Access Journals (Sweden)

    Claudia S Lopes

    1999-10-01

    Full Text Available OBJETIVO: Avaliar o papel dos transtornos mentais e da dependência ao álcool como possíveis fatores de risco para o abuso/dependência de cocaína. MÉTODOS: Utilizou-se o desenho caso-controle e a técnica de bola-de-neve (snowball technique para selecionar uma amostra de usuários de cocaína não tratados na comunidade (casos e parear casos e controles por sexo, idade e amizade. A coleta de dados foi feita através da utilização do questionário CIDI (Composite International Diagnostic Interview que gera diagnósticos de acordo com os critérios do Diagnostic and Statistical Manual of Mental Disorders-III-R. A análise dos dados foi feita através de regressão logística condicional. RESULTADOS: O estudo incluiu 208 indivíduos. Os principais resultados mostraram que história passada de dependência ao álcool era o principal fator associado a um aumento no risco de desenvolvimento de abuso de cocaína (OR=15,1; IC 95% 3,8-60,2; nenhum outro transtorno mental isolado manteve-se significativamente associado ao aumento deste risco após a análise multivariada. Aumento no risco de abuso de cocaína também foi encontrado entre os indivíduos que relataram pensamentos suicidas (OR=3,1; IC 95% 0,91-10,8, sugerindo associação entre quadros mais graves de depressão e abuso de cocaína. CONCLUSÕES: Esses achados sugerem que os programas voltados para a prevenção e tratamento do abuso de cocaína devem estar preparados para o manejo de questões relacionadas à co-morbidade do abuso de drogas com o álcool e outros distúrbios psiquiátricos.OBJECTIVE: To evaluate the role of psychiatric disorders and alcohol dependence as possible risk factors for cocaine abuse/dependence. METHODS: The case-control study used the "snowball" technique in order to select untreated cocaine users (cases and to match sex, age and friendship. Information was gathered using the Composite International Diagnostic Interview (CIDI, and computer diagnosis were

  17. As práticas educativas de qualidade como fator de normalização escolar na educação infantil = Quality educational practices as a factor of school standardization in childhood education

    Directory of Open Access Journals (Sweden)

    Rudinei Barichello Augusti

    2011-07-01

    Full Text Available Esta produção intelectual persegue a busca da maior compreensão acerca das questões que perpassam o cenário educacional, mais especificamente as práticas de qualidade na Educação Infantil. Fazem-se necessárias investigações, para que se compreenda o desejo de governamento e de qualidade na Educação Infantil e, ao mesmo tempo, as práticas pedagógicas de qualidade e de controle que ocorrem nos espaços escolares. As práticas educativas de qualidade são percebidas dentro deste âmbito de relações de poder governamental. A qualidade não se faz entender como o desejo e a necessidade de cada sujeito dentro de seu contexto social e cultural, mas sim, dentro de uma perspectiva de anseios políticos, econômicos, sociais e culturais generalizados, que resulta em uma unificação do que se acopla como qualidade educativa nacional. Dessa forma, tem-se como objetivo investigar a legislação e outros referenciais teóricos, os ambientes escolares e como se dá a qualidade nas práticas normativas de educação em nível de Educação Infantil, para compreender como acontece a normalização e o controle escolar pelo viés do governamento.This intellectual production pursues a greater understanding of the issues that pervade the educational scene, especially the quality practices in early childhood education. Investigations are necessary to understand the desire for governance and quality in childhood education, as well as teaching practices of quality and control that occur in school spaces. Quality educational practices are perceived within this framework of government power relations. Quality is not understood as the desire and need of each subject within their social and cultural context, but rather within a perspective of widespread political, economic, social and cultural desires, resulting in a unification that attaches to national educational quality. Thus, the objective is to investigate the legislation and other theoretical

  18. Data visualization

    CERN Document Server

    Azzam, Tarek

    2013-01-01

    Do you communicate data and information to stakeholders? In Part 1, we introduce recent developments in the quantitative and qualitative data visualization field and provide a historical perspective on data visualization, its potential role in evaluation practice, and future directions. Part 2 delivers concrete suggestions for optimally using data visualization in evaluation, as well as suggestions for best practices in data visualization design. It focuses on specific quantitative and qualitative data visualization approaches that include data dashboards, graphic recording, and geographic information systems (GIS). Readers will get a step-by-step process for designing an effective data dashboard system for programs and organizations, and various suggestions to improve their utility.

  19. Comparison of Risk Factor Profiles for Primary Open-Angle Glaucoma Subtypes Defined by Pattern of Visual Field Loss: A Prospective Study.

    Science.gov (United States)

    Kang, Jae H; Loomis, Stephanie J; Rosner, Bernard A; Wiggs, Janey L; Pasquale, Louis R

    2015-04-01

    We explored whether risk factor associations differed by primary open-angle glaucoma (POAG) subtypes defined by visual field (VF) loss pattern (i.e., paracentral or peripheral). We included 77,157 women in the Nurses' Health Study (NHS) and 42,773 men in the Health Professionals Follow-up Study (HPFS 1986-2010), and incident medical record confirmed cases of paracentral (n = 440) and peripheral (n = 865) POAG subtypes. We evaluated African heritage, glaucoma family history, body mass index (BMI), mean arterial blood pressure, diabetes mellitus, physical activity, smoking, caffeine intake, and alcohol intake. We used competing risk Cox regression analyses modeling age as the metameter and stratified by age, cohort, and event type. We sequentially identified factors with the least significant differences in associations with POAG subtypes ("stepwise down" approach with P for heterogeneity [P-het] 0.10) adverse associations with both POAG subtypes were observed with glaucoma family history, diabetes, African heritage, greater caffeine intake, and higher mean arterial pressure. These data indicate that POAG with early paracentral VF loss has distinct as well as common determinants compared with POAG with peripheral VF loss.

  20. La creencia en la rehabilitación y reinserción social de los internos de prisión como factor protector de la salud laboral de los trabajadores || Belief in rehabilitation and social reinsertion of prisoners positive factor employees occupational health

    Directory of Open Access Journals (Sweden)

    Miguel Clemente

    2015-11-01

    Full Text Available La literatura demuestra que un factor protector de la salud de los trabajadores de instituciones penitenciarias es la creencia en la rehabilitación y la reinserción de los internos. Esta actitud positiva previene problemas de salud laboral al evitar, fundamentalmente, el síndrome de burnout. Este trabajo investiga si una actitud positiva o negativa hacia la creencia en la rehabilitación y reinserción de los penados provee de mayor o menor protección frente a problemas de salud psicosocial. Participaron en el estudio 536 trabajadores de prisiones peruanas. Se recogió información de variables personales y laborales, así como cuestionarios de burnout, satisfacción en el trabajo, conciliación entre vida laboral y familiar. Y conflicto y ambigüedad de rol. Los datos confirman que la creencia en la rehabilitación y la reinserción implica más salud laboral al provocar más satisfacción laboral, menor burnout y mayores niveles de conciliación entre la vida laboral y familiar, por otras parte implica más ambigüedad y conflicto de rol (deteriorando por lo tanto la salud psicosocial. Un análisis de regresión establece que las tres variables predictoras de la actitud positiva hacia la rehabilitación y la reinserción son la satisfacción laboral, la interacción negativa trabajo-familia, y la ambigüedad de rol. Se discuten los resultados y se proponen tanto futuras líneas de investigación como la necesidad de promocionar programas dirigidos a los trabajadores que definan más sus tareas, de cara a evitar la ambigüedad de rol.

  1. Montagem e Imagem como Paradigma

    Directory of Open Access Journals (Sweden)

    Cesar Huapaya

    2016-01-01

    Full Text Available O pensar como montagem e imagem tornou-se um método revelador nos processos de estudos práticos e teóricos do artista e dos pesquisadores nos séculos XX e XXI. Este artigo procura articular três formas de pensar por montagem: nas obras de Bertolt Brecht, Sergei Eisenstein e Georges DidiHuberman. O filósofo e historiador da arte Georges Didi-Huberman reinaugura o debate e o exercício de pensar a antropologia da imagem e a montagem como metalinguagem e forma de conhecimento.

  2. Visual Literacy and Visual Thinking.

    Science.gov (United States)

    Hortin, John A.

    It is proposed that visual literacy be defined as the ability to understand (read) and use (write) images and to think and learn in terms of images. This definition includes three basic principles: (1) visuals are a language and thus analogous to verbal language; (2) a visually literate person should be able to understand (read) images and use…

  3. Visual Literacy and Visual Culture.

    Science.gov (United States)

    Messaris, Paul

    Familiarity with specific images or sets of images plays a role in a culture's visual heritage. Two questions can be asked about this type of visual literacy: Is this a type of knowledge that is worth building into the formal educational curriculum of our schools? What are the educational implications of visual literacy? There is a three-part…

  4. Productividad, innovación y uso de tecnologías de información y las comunicaciones (tic) como factores de desarrollo de la micro, pequeña y mediana empresa (mipyme) en Bogotá.

    OpenAIRE

    Martinez Salazar, Maria del Pilar; Cardozo Molano, Fabio Ricardo

    2014-01-01

    Las TIC han impactado en el funcionamiento de las organizaciones y han aportado a su proceso evolutivo, generando diversos efectos de acuerdo a la función que estas cumplen dentro de la organización. Las TIC como consecuencia se convierten en una estrategia de gestión en un entorno complejo donde permiten alcanzar mejoras en la organización social, la actividad económica, el bienestar y el acceso a la información y el conocimiento. (Cáceres Carrasco & Aceytuno Pérez, 2008)Con el fin de entend...

  5. Eritrocitosis secundaria a hipoxemia como factor pronóstico en pacientes con neumopatía crónica exacerbada. Fundación Hospital San Carlos. Bogotá D.C., Colombia.

    OpenAIRE

    Galindo Pedraza, Javier Leonardo

    2012-01-01

    Objetivo. Establecer si existe relación entre los distintos niveles de hematocrito con el pronóstico a 30 días en pacientes admitidos a la Fundación Hospital San Carlos con impresión diagnóstica de neumopatía crónica exacerbada e hipoxemia secundaria. Contexto y tipo de estudio. Estudio observacional de una única cohorte prospectiva pronóstica, teniendo como unidad de análisis los pacientes admitidos entre marzo de 2011 a octubre de 2011. Materiales y métodos. Se llevó a cab...

  6. La ciudad como ecosistema urbano

    OpenAIRE

    Higueras García, Esther

    2013-01-01

    LA CIUDAD COMO ECOSISTEMA URBANO .- La ecología y los ecosistemas .- El ecosistema urbano, definición, alcance y oportunidad .- El metabolismo urbano .- Los síntomas de la patología urbana .- Los objetivos del nuevo ecosistema urbano .- Las aportaciones de los ecobarrios

  7. Impacto del metaverso como herramienta de enseñanza para mejorar el factor de rotación mental de la inteligencia espacial de los estudiantes del primer ciclo de la Facultad de Odontología de la Universidad de San Martín de Porres

    OpenAIRE

    Alcántara Lino, Danitza Liz

    2014-01-01

    Existen diversos estudios de cómo elevar el nivel de inteligencia espacial en estudiantes, especialmente en niños; la presente investigación demuestra cómo la herramienta del metaverso, que es una tecnología virtual en 3D, permite mejorar el factor de rotación mental de la inteligencia espacial en estudiantes universitarios de la carrera de Odontología. Para medir el factor de rotación mental de la inteligencia espacial, se utilizó como instrumento el Test de Rotación Mental de Vandenbe...

  8. Análisis de los criterios de movilidad y desarrollo de zonas verdes como factores de sustentabilidad en la implantación urbana de la Universidad de Sevilla (España

    Directory of Open Access Journals (Sweden)

    Alexis Pérez Fargallo

    2015-06-01

    Full Text Available El artículo analiza la integración de la Universidad de Sevilla, como organismo disperso en la ciudad, desde la óptica de la sustentabilidad. Las actividades universitarias deben dar lugar a hábitats desarrollados a partir de un objetivo de calidad urbana y con una voluntad de integración en la ciudad, dando lugar a una puesta en valor del entorno donde se ubican. El análisis del modelo de una universidad con una estructura dispersa desarrollada a lo largo de la historia, permite analizar las ventajas e inconvenientes que surgen, tanto en la propia institución como en el espacio urbano que la acoge y a su área de influencia. La disponibilidad de espacios públicos, la accesibilidad y la movilidad en el entorno de los centros universitarios son analizadas desde una visión de sustentabilidad para establecer un diagnóstico que genere una mejor planificación. 

  9. Implementing visual cervical cancer screening in Senegal: a cross-sectional study of risk factors and prevalence highlighting service utilization barriers

    Directory of Open Access Journals (Sweden)

    Dykens JA

    2017-01-01

    Full Text Available J Andrew Dykens,1–4 Annē M Linn,5,6 Tracy Irwin,7 Karen E Peters,8 Maria Pyra,8 Fatoumata Traoré,9 Mariama Touré Diarra,9,☪ Memoona Hasnain,1,10 Katie Wallner,11 Patrick Linn,11 Youssoupha Ndiaye12 1Department of Family Medicine, College of Medicine, 2Center for Global Health, 3Institute for Health Research and Policy, 4Cancer Center, Hospital and Health Sciences System, University of Illinois at Chicago, IL, USA; 5Master’s International Graduate School Program, Peace Corps, Dakar, Senegal; 6Rutgers School of Nursing, Newark, NJ, 7Department of Obstetrics and Gynecology, 8School of Public Health, University of Illinois at Chicago, IL, USA; 9Regional Ministry of Health and Social Affairs, Kédougou, Senegal; 10Foundation for Advancement of International Medical Education and Research, Philadelphia, PA, USA; 11Peace Corps, Dakar, 12Regional Ministry of Health and Social Affairs, Sédhiou, Senegal ☪Mariama Touré Diarra passed away on March 21, 2015 Background: Senegal ranks 15th in the world in incidence of cervical cancer, the number one cause of cancer mortality among women in this country. The estimated participation rate for cervical cancer screening throughout Senegal is very low (6.9% of women 18–69 years old, especially in rural areas and among older age groups (only 1.9% of women above the age of 40 years. There are no reliable estimates of the prevalence of cervical dysplasia or risk factors for cervical dysplasia specific to rural Senegal. The goals of this study were to estimate the prevalence of cervical dysplasia in a rural region using visual inspection of the cervix with acetic acid (VIA and to assess risk factors for cervical cancer control. Patients and methods: We conducted a cross-sectional study in which we randomly selected 38 villages across the Kédougou region using a three-stage clustering process. Between October 2013 and March 2014, we collected VIA screening results for women aged 30–50 years and

  10. LA CUESTIÓN AGRARIA COMO ENFOQUE Y COMO PROBLEMA

    Directory of Open Access Journals (Sweden)

    Carlos Salgado

    2000-01-01

    Full Text Available Este ensayo trata de llamar la atención sobre los problemas del agro hoy, colocando especial énfasis en la disrupción entre las razones tecnológicas -que se asumen como ideológicas-, económicas y políticas que han inspirado el desarrollo del agro, o mejor, sobre las cuales se han basado las políticas de crecimiento agropecuario.

  11. Traffic Visualization

    DEFF Research Database (Denmark)

    Picozzi, Matteo; Verdezoto, Nervo; Pouke, Matti

    2013-01-01

    In this paper, we present a space-time visualization to provide city's decision-makers the ability to analyse and uncover important "city events" in an understandable manner for city planning activities. An interactive Web mashup visualization is presented that integrates several visualization...... techniques to give a rapid overview of traffic data. We illustrate our approach as a case study for traffic visualization systems, using datasets from the city of Oulu that can be extended to other city planning activities. We also report the feedback of real users (traffic management employees, traffic police...

  12. Visualization Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — FUNCTION: Evaluates and improves the operational effectiveness of existing and emerging electronic warfare systems. By analyzing and visualizing simulation results...

  13. Distributed Visualization

    Data.gov (United States)

    National Aeronautics and Space Administration — Distributed Visualization allows anyone, anywhere, to see any simulation, at any time. Development focuses on algorithms, software, data formats, data systems and...

  14. Los parques naturales como factor de atracción de la población. Un estudio exploratorio sobre el fenómeno de la naturbanización en Andalucía.

    Directory of Open Access Journals (Sweden)

    María José Prados Velasco

    2006-01-01

    Full Text Available Este trabajo identifica y analiza nuevas dinámicas de áreas rurales en Andalucía pertenecientes a espacios naturales protegidos. Estas dinámicas se refieren al comportamiento demográfico reciente de estos espacios, especialmente en los últimos veinte años, así como a las repercusiones de dichos cambios en los usos del suelo y el paisaje en la planificación territorial en un sentido amplio. La autora designa a este proceso bajo el término naturbanización, a modo de paráfrasis del de contraurbanización desarrollado por Berry (BERRY, B. J., 1976 y Champion (CHAMPION, A., 1989. Mientras que la mayoría de los trabajos sobre movimientos de población y reestructuración de las áreas rurales se analizan en dependencia del comportamiento de las áreas urbanas, este trabajo insiste en valorar la importancia medioambiental de determinados ámbitos territoriales como justificación de las preferencias residenciales de la población; y en segundo lugar, cómo ello puede repercutir a medio y largo plazo en sobre la dinámica de las áreas rurales en Andalucía. Los principales resultados muestran indicios claros de procesos de naturbanización a partir del crecimiento de población en las áreas rurales pertenecientes a espacios protegidos, así como evidencias claras de la existencia de un comportamiento diferenciado entre los parques naturales en función de sus características. El estudio exploratorio señala las relaciones de los cambios en las tasas de crecimiento con el atractivo residencial de estos espacios, y apunta sus repercusiones sobre la conservación de los valores ambientales, paisajísticos y socioculturales con vistas a la implementación de política públicas.

  15. Rapid Visualization of Human Tumor Xenografts through Optical Imaging with a Near-Infrared Fluorescent Anti–Epidermal Growth Factor Receptor Nanobody

    Directory of Open Access Journals (Sweden)

    Sabrina Oliveira

    2012-01-01

    Full Text Available Given that overexpression of the epidermal growth factor receptor (EGFR is found in many types of human epithelial cancers, noninvasive molecular imaging of this receptor is of great interest. A number of studies have employed monoclonal antibodies as probes; however, their characteristic long half-life in the bloodstream has encouraged the development of smaller probes. In this study, an anti-EGFR nanobody-based probe was developed and tested in comparison with cetuximab for application in optical molecular imaging. To this aim, the anti-EGFR nanobody 7D12 and cetuximab were conjugated to the near-infrared fluorophore IRDye800CW. 7D12-IR allowed the visualization of tumors as early as 30 minutes postinjection, whereas with cetuximab-IR, no signal above background was observed at the tumor site. Quantification of the IR-conjugated proteins in the tumors revealed ≈ 17% of injected dose per gram 2 hours after injection of 7D12-IR, which was significantly higher than the tumor uptake obtained 24 hours after injection of cetuximab-IR. This difference is associated with the superior penetration and distribution of 7D12-IR within the tumor. These results demonstrate that this anti-EGFR nanobody conjugated to the NIR fluorophore has excellent properties for rapid preclinical optical imaging, which holds promise for its future use as a complementary diagnostic tool in humans.

  16. Competitividad (Negocios Electrónicos vs productividad como factor de permanencia en la industria pequeña y mediana del sector textil y de la confección de Aguascalientes, en un mundo globalizado

    Directory of Open Access Journals (Sweden)

    Bogar García Martínez

    2016-02-01

    Full Text Available Negocios electrónicos se define como empresas administradas con tecnología de información. El objetivo de la investigación es desarrollar un modelo para ubicar al sector textil y confección en el nivel de quiebra, supervivencia, permanencia, integrando variables de productividad, nivel de negocios electrónicos, competitividad, en dos fases: primera, cualitativa, segunda, cuantitativa. Los resultados ubican su nivel de negocios electrónicos entre el nivel de quiebra y el de supervivencia; son competitivos sólo dentro de su entorno local; la exposición externa generada por la globalización irá quebrando a las empresas. La conclusión: su nivel de negocios electrónicos no les permite integrarse a cadenas productivas globales.

  17. Los ancianos como actores sociales

    Directory of Open Access Journals (Sweden)

    Mª PIA ARENYS

    1996-01-01

    Full Text Available En este artículo se recogen las discusiones de grupo que se realizaron durante cuatro meses en Barcelona como preparación del "II congreso de la gent gran" (II congreso de ancianos de esta ciudad, en noviembre de 1993. las discusiones se llevaron a cabo en las sedes de cada distrito, previa presentación de la ponencia por parte de un técnico. los componentes de los grupos son personas mayores sensibilizadas y comprometidas que forman parte del consejo de bienestar social del ayuntamiento de Barcelona. la metodología utilizada es cualitativa para el análisis del discurso, que se ha estructurado en los siguientes puntos: bajo el epígrafe "los ancianos como ciudadanos de derechos y obligaciones" se recogen los temas de valoración de la vejez, la familia, la jubilación, las implicaciones de los ancianos como ciudadanos de derechos y deberes y las funciones sociales de los ancianos.-- sobre estos temas, los mayores expresaron sus opiniones, que se vertieron, resumidamente, en la redacción final de la ponencia. aquí se recogen y se han analizado los materiales que ofrecen una versión de primera mano sobre lo que opinan los ancianos respecto al tema de "la valoración de la vejez".

  18. Visual Impairment

    Science.gov (United States)

    ... site Sitio para adolescentes Body Mind Sexual Health Food & Fitness Diseases & Conditions Infections Drugs & Alcohol School & Jobs Sports Expert Answers (Q&A) Staying Safe Videos for Educators Search English Español Visual Impairment KidsHealth / For Teens / Visual Impairment What's in ...

  19. Visual attention

    NARCIS (Netherlands)

    Evans, K.K.; Horowitz, T.S.; Howe, P.; Pedersini, R.; Reijnen, E.; Pinto, Y.; Wolfe, J.M.

    2011-01-01

    A typical visual scene we encounter in everyday life is complex and filled with a huge amount of perceptual information. The term, ‘visual attention’ describes a set of mechanisms that limit some processing to a subset of incoming stimuli. Attentional mechanisms shape what we see and what we can act

  20. Factores que inciden en el proceso de enseñanza - aprendizaje del español como segunda lengua (L2, segundo grado, escuela “Santo Tomás de Umbra”, segundo semestre del año 2007.

    Directory of Open Access Journals (Sweden)

    Leandro Pekitle Pedro

    2012-09-01

    Full Text Available La temática se fundamenta en los factores que inciden en el proceso de enseñanza - aprendizaje del español como segunda lengua (L2, segundo grado de Educación Primaria, escuelabilingüe en la comunidad: “Santo Tomás de Umbra”, segundo semestre del 2007. Asimismo, identifica los factores socioeconómicos que influyen para que la niñez aprenda hablar elespañol durante su escolaridad. La metodología aplicada fue participativa, activa e interactiva entre los investigadores y los participantes en la investigación (la comunidad dado el enfoque etnográfico de la investigación, se aplicaron instrumentos como guías de entrevistas semi - estructuradas y grupos focales para madres y padres de familia, estudiantes, docentes, directores de la comunidad.Los resultados reflejan diversas situaciones que dificultan que la niñez aprenda a hablar el español como segunda lengua para la socialización y necesidades de comunicación con otras personas, destacando el factor pedagógico, la ausencia de capacitaciones, el desconocimiento y aplicación de metodologías pertinentes para la enseñanza de segunda lengua por parte de la maestra. Entre las conclusiones es que uno de los mayores problemas que incide de forma negativa en el aprendizaje del español, es la no aplicación de una metodología pertinente y el desconocimiento de las habilidades lingüísticas para que la niñez pueda ampliar su repertorio verbal para diversos fines. Así como la poca práctica del español por parte de la niñez en la comunidad. Por lo cual se recomienda a las instancias correspondientes como el MINED- PEBI, tomar cartas en el asunto para brindar mayor atención a los docentes de la comunidad, en materia de capacitación y especialmente en aplicación de metodologías para enseñanza del español y conocimientos básicos sobre lingüística.

  1. Visual Education

    DEFF Research Database (Denmark)

    Buhl, Mie; Flensborg, Ingelise

    2010-01-01

    The intrinsic breadth of various types of images creates new possibilities and challenges for visual education. The digital media have moved the boundaries between images and other kinds of modalities (e.g. writing, speech and sound) and have augmented the possibilities for integrating the functi......The intrinsic breadth of various types of images creates new possibilities and challenges for visual education. The digital media have moved the boundaries between images and other kinds of modalities (e.g. writing, speech and sound) and have augmented the possibilities for integrating...... to emerge in the interlocutory space of a global visual repertoire and diverse local interpretations. The two perspectives represent challenges for future visual education which require visual competences, not only within the arts but also within the subjects of natural sciences, social sciences, languages...

  2. La proyección como proceso y como mecanismo

    OpenAIRE

    Brusset, Bernard

    2001-01-01

    La proyección es a la vez un mecanismo elemental testimonio de la fragilidad de la organización defensiva y un proceso cuyo rol es fundamental en el funcionamiento psíquico. En este doble aspecto, la proyección guarda especificidades diferentes en la neurosis y en la psicosis al punto que se las deba considerar como fundamentalmente diferentes? O bien las diferencias de contexto, del nivel del funcionamiento psíquico, de lugar, de función pueden explicar las diferencias clínicas justificando ...

  3. Acuidade visual: Medidas e notações Visual acuity: Measurements and notations

    Directory of Open Access Journals (Sweden)

    Harley E. A. Bicas

    2002-06-01

    Full Text Available Avaliações da função visual são muito complexas por dependerem de mecanismos aferentes, eferentes e cognitivos, além de fatores externos à pessoa examinada, como o tipo de estímulo e o de sua apresentação. O exame da acuidade visual é discutido em seus aspectos formais de definições, quantificações (critérios de medição de um ângulo e tamanho dos optotipos, notações (decimal ou fracionárias, escalas (representando relações angulares, lineares, logarítmicas e unidades em que os valores são expressos (recíproca do minuto de arco, número puro, freqüência espacial, decibéis e oitavas. Como conseqüência, referências numéricas sobre a acuidade visual e operações que as envolvem (p.ex., cálculo de valores médios, determinação de variações, relações entre elas podem levar a interpretações muito diferentes e até opostas num mesmo estudo, dependendo dos critérios nele empregados.Evaluations of the visual function are very intricate since they depend on afferent, efferent and cognitive mechanisms, besides external factors of the examined subject, such as the type of the stimulus and of its presentation. Testing the visual acuity is discussed in its formal aspects related to definitions, quantifications (criteria for the measurements of an angle, size of optotypes, notations (decimal or fractionary, scales (representing angular, linear or logarithmic relationships and units in which the values are expressed (reciprocal of minutes of arc, pure number, spacial frequency, decibels, octaves. As a consequence, numerical references about visual acuity and respective operations (e.g., calculations of average values, determinations of variations, relationships between them may lead to very different interpretations of a study, sometimes even opposite, according to the criteria which are used.

  4. A diversidade de interpretações como fator constituinte da formação docente: leitura e observação The interpretations diversity as a teacher education constituting factor: reading and observation

    Directory of Open Access Journals (Sweden)

    Maria José P. M. de Almeida

    2009-01-01

    Full Text Available Neste artigo apresentamos a análise de interpretações de estudantes em trabalhos desenvolvidos em duas disciplinas de cursos de Licenciatura em Física, nas quais realizamos atividades bastante distintas, uma envolvendo a leitura e outra a observação pelos licenciandos. Buscamos compreender falas escritas pelos estudantes como parte dessas atividades, e procuramos evidenciar a diversidade de interpretações e a relevância desse trabalho para a formação inicial. O apoio teórico em que nos sustentamos foi a análise de discurso na vertente originada na França por Michel Pêcheux. A consideração da não transparência da linguagem, e as noções de condições de produção, memória discursiva e repetição, bem como alguns aportes sobre possíveis papéis da observação na construção científica, contribuíram para a compreensão de discursos escritos pelos estudantes. Mostramos a diversidade de interpretações dos licenciados: ao opinarem sobre a possibilidade ou não de se trabalhar a física moderna e contemporânea no ensino médio, depois de lerem um texto envolvendo esse tema, e ao redigirem um texto sobre a observação na pesquisa científica.In this paper we present an analysis of students' interpretations about tasks assigned during two courses taught in undergraduate physics preservice programs, in which we carried out among future physics teachers well distinct activities, one involving reading and another observation. We looked for comprehending their written speech as part of these activities, and to show the diversity of interpretations and the relevance of this task for teachers' initial training. The theoretical support of this study was the discourse analysis approach initiated in France by Michel Pêcheux. The no language transparency consideration and the production conditions, discursive memory and repetition notions, as well as some possible role played by observation in the scientific construction

  5. Inclusão digital: os limites e desafios da tecnologia como fator de inclusão social e cidadania (Digital inclusion: the limits and challenges of technology as a factor of social inclusion and citizenship

    Directory of Open Access Journals (Sweden)

    Maria Lúcia Becker

    2008-01-01

    Full Text Available Resumo:Tendo como ponto de partida a suposição de condições inéditas para o exercício da cidadania, trazidas ou potencializadas pela tecnologia digital e, principalmente, pela internet, o trabalho discute as origens do mal-estar vivido atualmente pela cidadania, refletindo sobre as possibilidades reais de uma “solução tecnológica”. Passa em revista o conceito de cidadania, lembrando que, como pertencimento, esta implica um processo de identificação que se desenvolve com base em referências a partir das quais se define a inclusão ou a exclusão dos indivíduos – daí a possibilidade de uma interseção entre os campos de significação dos conceitos de inclusão digital e cidadania. Mas, chamando a atenção para o conceito de cidadania ativa, conclui que, embora a rede possa potencializar a ação daqueles que já possuem algum grau de comprometimento/engajamento, não se consegue solucionar no nível da tecnologia questões que pertencem ao âmbito mais geral das relações sociais e políticas.Abstract: Starting from the assumption of inedited conditions for the exercise of citizenship brought or enhanced by the digital technology mainly the internet, this paper discusses the origins of the uneasiness currently experienced by citizenship, reflecting on the real possibilities of a “technological solution”. It reviews the concept of citizenship, pointing out that it implies a process of identification based on the references of which the inclusion or exclusion of individuals are defined – hence the possibility of an intersection between the fields of signification of the concepts of digital inclusion and the citizenship. However, while drawing attention to the concept of active citizenship, we concluded that even though the web might enhance the action of those ones who have already a certain degree of commitment/engagement, the issues belonging to the more general scope of social and political relationships cannot be

  6. Competencias sociales y tecnologías de la información y la comunicación como factores asociados al desempeño en estudiantes de básica primaria con experiencia de desplazamiento forzado

    Directory of Open Access Journals (Sweden)

    Inírida Avendaño-Villa

    2015-01-01

    Full Text Available El presente artículo tiene como propósito central describir los principales referentes teóricos y ha - llazgos derivados del análisis relacional entre las competencias sociales, las actitudes frente al uso de las TIC y el desempeño académico a partir de los reportes de una muestra conformada por docen - tes (9, padres de familia (60 y estudiantes (60 del nivel de básica primaria en la I.E. Villa Campo (Ma - lambo e I.E.D. Carrizal (Barranquilla, quienes han sido expuestos a la experiencia del desplazamiento forzado. Para tal efecto, se administró inicialmente el protocolo de consentimiento informado y a cada uno de los diferentes actores se les administró según su correspondencia los instrumentos de Actitudes frente al uso de las TIC, Cuestionario de Solución de Conflictos Escolares, Escalas MESSY para Estudiantes y Docentes, Inventario de Observación de Conduc - tas Escolares, Cuestionario de Caracterización So - ciodemográfica y Percepción sobre el uso de las TIC para los padres de familia. Los resultados reflejan una actitud positiva frente al uso de las TIC en los estudiantes y docentes, el empleo de estrategias de solución de conflictos ante la prevalencia de expo - sición a eventos de agresión escolar, un mayor nivel de reconocimiento de conductas Prosociales en comparación con el reporte de conductas agresivas por parte de los docentes y el establecimiento de asociaciones estadísticamente significativas en - tre las competencias sociales de conducta prosocial y solución de conflictos de forma directamente proporcional, a diferencia de la relación inversa entre la conducta agresiva y la conducta prosocial; así como una relación directamente proporcional entre las conductas Prosociales y el desempeño académico y una asociación estadísticamente significativa entre el uso de TIC y el desempeño académico.

  7. Visual attention capacity

    DEFF Research Database (Denmark)

    Habekost, Thomas; Starrfelt, Randi

    2009-01-01

    Psychophysical studies have identified two distinct limitations of visual attention capacity: processing speed and apprehension span. Using a simple test, these cognitive factors can be analyzed by Bundesen's Theory of Visual Attention (TVA). The method has strong specificity and sensitivity......, and measurements are highly reliable. As the method is theoretically founded, it also has high validity. TVA-based assessment has recently been used to investigate a broad range of neuropsychological and neurological conditions. We present the method, including the experimental paradigm and practical guidelines...... to patient testing, and review existing TVA-based patient studies organized by lesion anatomy. Lesions in three anatomical regions affect visual capacity: The parietal lobes, frontal cortex and basal ganglia, and extrastriate cortex. Visual capacity thus depends on large, bilaterally distributed anatomical...

  8. Visual cognition

    Science.gov (United States)

    Cavanagh, Patrick

    2011-01-01

    Visual cognition, high-level vision, mid-level vision and top-down processing all refer to decision-based scene analyses that combine prior knowledge with retinal input to generate representations. The label “visual cognition” is little used at present, but research and experiments on mid- and high-level, inference-based vision have flourished, becoming in the 21st century a significant, if often understated part, of current vision research. How does visual cognition work? What are its moving parts? This paper reviews the origins and architecture of visual cognition and briefly describes some work in the areas of routines, attention, surfaces, objects, and events (motion, causality, and agency). Most vision scientists avoid being too explicit when presenting concepts about visual cognition, having learned that explicit models invite easy criticism. What we see in the literature is ample evidence for visual cognition, but few or only cautious attempts to detail how it might work. This is the great unfinished business of vision research: at some point we will be done with characterizing how the visual system measures the world and we will have to return to the question of how vision constructs models of objects, surfaces, scenes, and events. PMID:21329719

  9. Visual cognition.

    Science.gov (United States)

    Cavanagh, Patrick

    2011-07-01

    Visual cognition, high-level vision, mid-level vision and top-down processing all refer to decision-based scene analyses that combine prior knowledge with retinal input to generate representations. The label "visual cognition" is little used at present, but research and experiments on mid- and high-level, inference-based vision have flourished, becoming in the 21st century a significant, if often understated part, of current vision research. How does visual cognition work? What are its moving parts? This paper reviews the origins and architecture of visual cognition and briefly describes some work in the areas of routines, attention, surfaces, objects, and events (motion, causality, and agency). Most vision scientists avoid being too explicit when presenting concepts about visual cognition, having learned that explicit models invite easy criticism. What we see in the literature is ample evidence for visual cognition, but few or only cautious attempts to detail how it might work. This is the great unfinished business of vision research: at some point we will be done with characterizing how the visual system measures the world and we will have to return to the question of how vision constructs models of objects, surfaces, scenes, and events. Copyright © 2011 Elsevier Ltd. All rights reserved.

  10. Do Visual Aids Really Matter?

    Directory of Open Access Journals (Sweden)

    Kristine Fish

    2016-01-01

    Full Text Available Educational webcasts or video lectures as a teaching tool and a form of visual aid have become widely used with the rising prevalence of online and blended courses and with the increase of web-based video materials. Thus, research pertaining to factors enhancing the effectiveness of video lectures, such as number of visual aids, is critical. This study compared student evaluations before and after embedding additional visual aids throughout video lectures in an online course. Slide transitions occurred on average every 40 seconds for the pre-treatment group with approximately 600 visuals total, compared to slide transitions every 10 seconds for the post-treatment group with approximately 2,000 visuals total. All students received the same audio recordings. Research questions addressed are: (1 Are student perceptions of the effectiveness of examples used to illustrate concepts affected by number of visual aids? (2 Is the extent to which students feel engaged during the lectures affected by number of visual aids? (3 Are students’ perceived overall learning experiences affected by number of visual aids? Surprisingly, results indicate that for questions #1 and #3, student ratings of those who viewed videos with fewer visuals rated their experiences higher than students who viewed more visuals. There was no significant difference found for question #2. Conclusion: Although some visuals have been shown to enhance learning, too many visuals may be a deterrent to learning.

  11. Modelo de promoción, fortalecimiento y evaluación de la producción oral en estudiantes adultos de inglés como lengua extranjera (ILE) basado en factores de aprendizaje de mayor impacto en un estudio de caso

    OpenAIRE

    Castelblanco Barrera, Jenny Viviana

    2012-01-01

    En esta investigación se diseñó un modelo de promoción, fortalecimiento y evaluación de la habilidad de producción oral en Inglés como Lengua Extranjera (ILE) para estudiantes adultos basado en los factores de aprendizaje con mayor impacto en esta habilidad, de acuerdo con un estudio de caso. En el estudio participaron 21 estudiantes adultos, 16 mujeres y 5 hombres, de los cursos de Extensión del Departamento de Lenguas Extranjeras de la Universidad Nacional de Colombia. Se exploraron sus con...

  12. Visual cognition

    Energy Technology Data Exchange (ETDEWEB)

    Pinker, S.

    1985-01-01

    This book consists of essays covering issues in visual cognition presenting experimental techniques from cognitive psychology, methods of modeling cognitive processes on computers from artificial intelligence, and methods of studying brain organization from neuropsychology. Topics considered include: parts of recognition; visual routines; upward direction; mental rotation, and discrimination of left and right turns in maps; individual differences in mental imagery, computational analysis and the neurological basis of mental imagery: componental analysis.

  13. Visual search, visual streams, and visual architectures.

    Science.gov (United States)

    Green, M

    1991-10-01

    Most psychological, physiological, and computational models of early vision suggest that retinal information is divided into a parallel set of feature modules. The dominant theories of visual search assume that these modules form a "blackboard" architecture: a set of independent representations that communicate only through a central processor. A review of research shows that blackboard-based theories, such as feature-integration theory, cannot easily explain the existing data. The experimental evidence is more consistent with a "network" architecture, which stresses that: (1) feature modules are directly connected to one another, (2) features and their locations are represented together, (3) feature detection and integration are not distinct processing stages, and (4) no executive control process, such as focal attention, is needed to integrate features. Attention is not a spotlight that synthesizes objects from raw features. Instead, it is better to conceptualize attention as an aperture which masks irrelevant visual information.

  14. El dictado como tarea comunicativa

    Directory of Open Access Journals (Sweden)

    Daniel Cassany

    2004-01-01

    Full Text Available El artículo explora las utilidades didácticas del dictado (la práctica comunicativa de oralizar o leer en voz alta un escrito para el aprendizaje funcional de una lengua materna o extranjera, en los diversos niveles de enseñanza. Después de criticar el uso tradicional de este ejercicio lingüístico, presentamos once formas diferentes de desarrollar un dictado en clase, con sus particulares contenidos, objetivos y metodologías. También analizamos con detalle la técnica más tradicional del dictado magistral, en la que el docente dicta palabra por palabra un texto al alumnado, poniendo énfasis en la ortografía; ofrecemos algunas orientaciones para incrementar el componente comunicativo de esta propuesta. Las conclusiones finales proponen entender esta técnica como un recurso metodológico variado, rico y sugerente, adaptado a cada situación de aprendizaje —y no como una práctica obligatoria y fosilizada.

  15. Estimative of dilution factor for radioactive liquid effluents employing the H-3 and Cs-137 radiotracers present as pollutant; Estimativa do fator de diluicao para efluentes radioativos liquidos empregando os radiotracadores H-3 e Cs-137 presentes como poluentes

    Energy Technology Data Exchange (ETDEWEB)

    Nisti, Marcelo Bessa; Santos, Adir Janete Godoy dos, E-mail: mbnisti@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-07-01

    It was estimated the dilution factor for liquid effluents at the discharge points of the IPEN, Sao Paulo, Brazil, employing as radiotracers the radioisotope routinely liberated for the sewage of 'Cidade Universitaria Armando de Salles Oliveira' - CUASO {sup 3}H and {sup 137}Cs, not generating either monetary or environmental cost associated to the estimation. The {sup 137}Cs was determined by gamma spectrometry and the {sup 3}H was determined liquid phase scintillation. The results showed that the dilution factor varied according to the employed radiotracer in a crescent order of {sup 3}H and {sup 137}Cs according to the characteristics of each element. The average of dilution factors obtained at the first and second liberation day were 4.3 and 7.4 respectively for the {sup 3}H and 6.2 and 13.9 for the {sup 137}Cs. The ratio of dilution factors of calculated {sup 3}H and {sup 137}Cs were coherent with the ratio verified at the twelve hydrometers distributed by the IPEN campus. The dilution factors were estimated in operational and laboratory study, in a single controlled discharge of the TR1 tank

  16. A aventura e o lazer como coadjuvantes do processo de educação ambiental Adventure and leisure as supporting factors in the process of environmental education La aventura y el ocio como coadyuvantes del proceso de educación ambiental

    Directory of Open Access Journals (Sweden)

    2006-11-01

    Full Text Available A natureza vem sendo constantemente foco de interesse de muitas pessoas que a procuram, devido à necessidade de interação, por inúmeras razões. Nesse sentido, busca-se ampliar a compreensão do universo relativo aos fatores relacionados ao consumo do meio natural e à conscientização acerca da implementação de uma educação para com o ambiente. Esse tipo de educação se faz premente, tendo em vista a demanda crescente pelo turismo de aventura e as práticas físicas na natureza, no âmbito do lazer. Para tanto, foi realizada uma revisão bibliográfica sobre os estudos existentes, com o propósito de apontar possíveis contribuições para a compreensão dessa temática e instigar intervenções significativas nas áreas envolvidas. PALAVRAS-CHAVE: natureza – educação – lazer Nature has constantly become the focus of interest to many people who go to it due to their need of interaction, for various reasons. In this sense, one tries to broaden the understanding of the universe related to factors which are linked to the consumption of nature and to the awereness of the need for implementation of an environmental education program. This type of education is necessary, as one considers the growing demand for adventure tourism and outdoor physical practices in the scope of leisure. To achieve this understanding, we have undertaken a bibliographic research on the existing studies on the matter, with the aim of pointing to possible contributions to the understanding of this research theme and to stimulate significant interventions in the related fields. KEYWORDS: nature – education – leisure La naturaleza viene siendo constantemente foco de interés de muchas personas que la buscan debido a la necesidad de interacción, por innúmeras razones. En ese sentido, se busca ampliar la comprensión del universo relativo a los factores relacionados al consumo del medio natural y a la concientización acerca de la implementación de una

  17. Visualizing water

    Science.gov (United States)

    Baart, F.; van Gils, A.; Hagenaars, G.; Donchyts, G.; Eisemann, E.; van Velzen, J. W.

    2016-12-01

    A compelling visualization is captivating, beautiful and narrative. Here we show how melding the skills of computer graphics, art, statistics, and environmental modeling can be used to generate innovative, attractive and very informative visualizations. We focus on the topic of visualizing forecasts and measurements of water (water level, waves, currents, density, and salinity). For the field of computer graphics and arts, water is an important topic because it occurs in many natural scenes. For environmental modeling and statistics, water is an important topic because the water is essential for transport, a healthy environment, fruitful agriculture, and a safe environment.The different disciplines take different approaches to visualizing water. In computer graphics, one focusses on creating water as realistic looking as possible. The focus on realistic perception (versus the focus on the physical balance pursued by environmental scientists) resulted in fascinating renderings, as seen in recent games and movies. Visualization techniques for statistical results have benefited from the advancement in design and journalism, resulting in enthralling infographics. The field of environmental modeling has absorbed advances in contemporary cartography as seen in the latest interactive data-driven maps. We systematically review the design emerging types of water visualizations. The examples that we analyze range from dynamically animated forecasts, interactive paintings, infographics, modern cartography to web-based photorealistic rendering. By characterizing the intended audience, the design choices, the scales (e.g. time, space), and the explorability we provide a set of guidelines and genres. The unique contributions of the different fields show how the innovations in the current state of the art of water visualization have benefited from inter-disciplinary collaborations.

  18. La cultura como verdad: pobreza latinoamericana

    Directory of Open Access Journals (Sweden)

    Ana María Rocchietti

    2000-04-01

    Full Text Available El artículo parte de un balance crítico de la obra Antropología de la Pobreza, del antropólogo Oscar Lewis para analizar el concepto de pobreza en América Latina. Se argumenta que la cultura de la pobreza ofrece la posibilidad de incluir a las formaciones simbólicas de las tradiciones vivientes y a las que emergen en la existencia comunitaria de los pobres como un factor de peso en la evolución de las relaciones de fuerza entre las clases subalternas y las clases dominantes; entre los sectores populares rurales y urbanos y los gobiernos; entre las formaciones sociales nacionales y el imperialismo.

  19. Visual comparison for information visualization

    KAUST Repository

    Gleicher, M.; Albers, D.; Walker, R.; Jusufi, I.; Hansen, C. D.; Roberts, J. C.

    2011-01-01

    Data analysis often involves the comparison of complex objects. With the ever increasing amounts and complexity of data, the demand for systems to help with these comparisons is also growing. Increasingly, information visualization tools support such comparisons explicitly, beyond simply allowing a viewer to examine each object individually. In this paper, we argue that the design of information visualizations of complex objects can, and should, be studied in general, that is independently of what those objects are. As a first step in developing this general understanding of comparison, we propose a general taxonomy of visual designs for comparison that groups designs into three basic categories, which can be combined. To clarify the taxonomy and validate its completeness, we provide a survey of work in information visualization related to comparison. Although we find a great diversity of systems and approaches, we see that all designs are assembled from the building blocks of juxtaposition, superposition and explicit encodings. This initial exploration shows the power of our model, and suggests future challenges in developing a general understanding of comparative visualization and facilitating the development of more comparative visualization tools. © The Author(s) 2011.

  20. Visual comparison for information visualization

    KAUST Repository

    Gleicher, M.

    2011-09-07

    Data analysis often involves the comparison of complex objects. With the ever increasing amounts and complexity of data, the demand for systems to help with these comparisons is also growing. Increasingly, information visualization tools support such comparisons explicitly, beyond simply allowing a viewer to examine each object individually. In this paper, we argue that the design of information visualizations of complex objects can, and should, be studied in general, that is independently of what those objects are. As a first step in developing this general understanding of comparison, we propose a general taxonomy of visual designs for comparison that groups designs into three basic categories, which can be combined. To clarify the taxonomy and validate its completeness, we provide a survey of work in information visualization related to comparison. Although we find a great diversity of systems and approaches, we see that all designs are assembled from the building blocks of juxtaposition, superposition and explicit encodings. This initial exploration shows the power of our model, and suggests future challenges in developing a general understanding of comparative visualization and facilitating the development of more comparative visualization tools. © The Author(s) 2011.

  1. Health-related quality of life among people aged ≥65 years with self-reported visual impairment: findings from the 2006-2010 behavioral risk factor surveillance system.

    Science.gov (United States)

    Crews, John E; Chou, Chiu-Fang; Zhang, Xinzhi; Zack, Matthew M; Saaddine, Jinan B

    2014-10-01

    To examine the association between health-related quality of life (HRQoL) and visual impairment among people aged ≥65 years. We used cross-sectional data from the 2006-2010 Behavioral Risk Factor Surveillance System to examine six HRQoL measures: self-reported health, physically unhealthy days, mentally unhealthy days, activity limitation days, life satisfaction, and disability. Visual impairment was categorized as no, a little, and moderate/severe. We examined the association between self-reported visual impairment and HRQoL using logistic regression accounting for the survey's complex design. People with self-reported moderate/severe visual impairment had more frequent (≥14) physically unhealthy days, mentally unhealthy days, and activity limitation days in the last 30 days compared to those reporting a little or no visual impairment. After controlling for all covariates (age, sex, marital status, race/ethnicity, education, income, diabetes, heart disease, stroke, heart attack, body mass index, leisure time activity, smoking, and medical care cost concerns) and comparing to those with no self-reported visual impairment, people reporting a little visual impairment were more likely to have fair/poor health (odds ratio, OR, 1.2, 95% confidence interval, CI, 1.1-1.3), life dissatisfaction (OR 1.6, 95% CI 1.3-2.0), and disability (OR 1.5, 95% CI 1.3-1.6), and those with self-reported moderate/severe visual impairment had more fair/poor health (OR 1.8, 95% CI 1.6-2.0), life dissatisfaction (OR 2.3, 95% CI 1.8-2.9), and disability (OR 2.0, 95% CI 1.8-2.2). They also had more frequent physically unhealthy days (OR 1.9, 95% CI 1.7-2.1), mentally unhealthy days (OR 1.8, 95% CI 1.5-2.1), and activity limitations days (OR 1.9, 95% CI 1.6-2.2). Poor HRQoL is strongly associated with the severity of self-reported visual impairment among people aged ≥65 years.

  2. Health-Related Quality of Life Among People Aged ≥65 Years with Self-reported Visual Impairment: Findings from the 2006–2010 Behavioral Risk Factor Surveillance System

    Science.gov (United States)

    Crews, John E.; Chou, Chiu-Fang; Zhang, Xinzhi; Zack, Matthew M.; Saaddine, Jinan B.

    2016-01-01

    Purpose To examine the association between health-related quality of life (HRQoL) and visual impairment among people aged ≥65 years. Methods We used cross-sectional data from the 2006–2010 Behavioral Risk Factor Surveillance System to examine six HRQoL measures: self-reported health, physically unhealthy days, mentally unhealthy days, activity limitation days, life satisfaction, and disability. Visual impairment was categorized as no, a little, and moderate/severe. We examined the association between self-reported visual impairment and HRQoL using logistic regression accounting for the survey’s complex design. Results People with self-reported moderate/severe visual impairment had more frequent (≥14) physically unhealthy days, mentally unhealthy days, and activity limitation days in the last 30 days compared to those reporting a little or no visual impairment. After controlling for all covariates (age, sex, marital status, race/ethnicity, education, income, diabetes, heart disease, stroke, heart attack, body mass index, leisure time activity, smoking, and medical care cost concerns) and comparing to those with no self-reported visual impairment, people reporting a little visual impairment were more likely to have fair/poor health (odds ratio, OR, 1.2, 95% confidence interval, CI, 1.1–1.3), life dissatisfaction (OR 1.6, 95% CI 1.3–2.0), and disability (OR 1.5, 95% CI 1.3–1.6), and those with self-reported moderate/severe visual impairment had more fair/poor health (OR 1.8, 95% CI 1.6–2.0), life dissatisfaction (OR 2.3, 95% CI 1.8–2.9), and disability (OR 2.0, 95% CI 1.8–2.2). They also had more frequent physically unhealthy days (OR 1.9, 95% CI 1.7–2.1), mentally unhealthy days (OR 1.8, 95% CI 1.5–2.1), and activity limitations days (OR 1.9, 95% CI 1.6–2.2). Conclusion Poor HRQoL is strongly associated with the severity of self-reported visual impairment among people aged ≥65 years. PMID:24955821

  3. Como Lo Hago Yo: Myelomeningocele

    Science.gov (United States)

    Lazareff, Jorge

    2014-01-01

    Fortificación con ádico fólico es efectiva, pero aún falta conciencia en los jóvenes. La legalidad del aborto aumenta la importancia de la consulta prenatal. Realizo la cirugía bajo microcoscopio por razones didácticas. Irrigación continua para reducir la temperatura del tejido. Trato a la plaqueta como tejido viable. No suturo la plaqueta. No cierro músculo. ATB por una semana después de cirugía. Hidrocefalia: Válvula en todos los casos de ventriculomegalia. Médula anclada: Desanclar una sola vez. Chiari II: Revisar la válvula. Incluir en el seguimiento rendimiento escolar, puede indicar obstrucción de la válvula o médula anclada. PMID:24791217

  4. O Corpo Queer Como "Imagem-Mentira" na Telenovela Brasileira

    Directory of Open Access Journals (Sweden)

    Juliana Ribeiro Pinto Bravo

    2016-12-01

    Full Text Available Este artigo tem o objetivo de propor a materialidade do corpo queer como um produto estilizado pela telenovela brasileira, justamente, por este corpo pertencer a um processo de montagem que prioriza na imagem a evidência de certa ausência. Dessa forma, a representação do corpo queer é um elemento visual de uma montagem ideológica coerente. Portanto, é preciso analisar as estruturas textuais televisivas, os aportes teóricos queer e as próprias definições de montagem e ausência. A partir do conceito de “Imagem-Mentira” de Didi-Huberman, nomes como John Fiske, John Hartley, Judith Butler, Michel Foucault e Jacques Rancière servirão de base teórica para a discussão.

  5. Fontes visuais, cultura visual, história visual: balanço provisório, propostas cautelares

    Directory of Open Access Journals (Sweden)

    Ulpiano T. Bezerra de Meneses

    2003-07-01

    Full Text Available O objetivo do artigo é deslocar o interesse dos historiadores, das fontes visuais (iconografia, iconologia para um tratamento mais abrangente da visualidade como uma dimensão importante da vida social e dos processos sociais. Após um rápido exame das contribuições trazidas para o estudo dos registros visuais e dos regimes visuais pela História da Arte, Antropologia Visual, Sociologia Visual e Estudos de Cultura Visual, o autor propõe algumas premissas para a consolidação de uma História Visual, concebida não como mais um feudo acadêmico, mas como uma conjunto de recursos operacionais para ampliar a consistência da pesquisa histórica em todos os seus domínios.The aim of this article is to displace the historian's focus on visual sources (iconography, iconology into a more rewarding treatment of visuality as an important dimension of social life and historical processes. After a survey of contributions brought in by Art History, Visual Anthropology, Visual Sociology and Visual Culture Studies, concerning visual records and visual regimes, the author introduces a few prerequisites for a Visual History - intended not as a new academic feud, but as a set of strategic operational means of enhancing historical research in all its domains.

  6. Bronchopulmonary dysplasia as a predictor factor for motor alteration at 6 months corrected age in premature infants Displasia broncopulmonar como fator predisponente para alterações motoras aos 6 meses em prematuros

    OpenAIRE

    Priscila Silveira Martins; Rosane Reis de Mello; Kátia Silveira da Silva

    2010-01-01

    OBJECTIVE: The study aimed to assess bronchopulmonary dysplasia (BPD) as a predisposing factor for alteration in the psychomotor development index (PDI) in premature infants and verify the incidence of neuromotor alterations at 6 months corrected age. METHOD: This was a prospective cohort study that followed the neuromotor development of 152 very low birth weight premature infants, with psychomotor development index as the outcome. The study used the Bayley Scale of Infant Development at 6 mo...

  7. Visual cognition

    Energy Technology Data Exchange (ETDEWEB)

    Pinker, S.

    1985-01-01

    This collection of research papers on visual cognition first appeared as a special issue of Cognition: International Journal of Cognitive Science. The study of visual cognition has seen enormous progress in the past decade, bringing important advances in our understanding of shape perception, visual imagery, and mental maps. Many of these discoveries are the result of converging investigations in different areas, such as cognitive and perceptual psychology, artificial intelligence, and neuropsychology. This volume is intended to highlight a sample of work at the cutting edge of this research area for the benefit of students and researchers in a variety of disciplines. The tutorial introduction that begins the volume is designed to help the nonspecialist reader bridge the gap between the contemporary research reported here and earlier textbook introductions or literature reviews.

  8. Visualizing Transformation

    DEFF Research Database (Denmark)

    Pedersen, Pia

    2012-01-01

    Transformation, defined as the step of extracting, arranging and simplifying data into visual form (M. Neurath, 1974), was developed in connection with ISOTYPE (International System Of TYpographic Picture Education) and might well be the most important legacy of Isotype to the field of graphic...... design. Recently transformation has attracted renewed interest because of the book The Transformer written by Robin Kinross and Marie Neurath. My on-going research project, summarized in this paper, identifies and depicts the essential principles of data visualization underlying the process...... of transformation with reference to Marie Neurath’s sketches on the Bilston Project. The material has been collected at the Otto and Marie Neurath Collection housed at the University of Reading, UK. By using data visualization as a research method to look directly into the process of transformation, the project...

  9. El investigador como educador musical y como divulgador

    Directory of Open Access Journals (Sweden)

    Suárez-Pajares, Javier

    2000-05-01

    Full Text Available La presente ponencia trataba de plantear en la Mesa redonda "Investigación aplicada a la educación musical" una serie de problemas que surgen no tanto a quienes se dedican profesionalmente a la educación musical, sino a quienes, dedicados a la investigación y al estudio de temas relacionados con la historia de la música desde perspectivas diversas, tienen finalmente que transmitirlos a una audiencia determinada, ya sea otros colegas, alumnos de universidad, u otros públicos en los que se centra el concepto "divulgación" aludido en el título.Se incide particularmente en los problemas de la educación musical universitaria para no especialistas y en la divulgación científica aplicada a la música, un campo casi yermo sobre el que hay mucho que reflexionar: desde las nuevas posibilidades para la explicación de la música que ofrecen soportes nuevos como el CD-Rom, hasta las tradicionales formas de relación con un público melómano a través de notas a programas y críticas de conciertos.

  10. La preeclampsia y la hipertensión gestacional como factores de riesgo para el desarrollo del estado de prehipertensión y de hipertensión arterial a las doce semanas posparto. Un estudio descriptivo prospectivo

    OpenAIRE

    Bernardo Agudelo Jaramillo; Joaquín Guillermo Gómez Dávila; Samuel Eduardo Gélvez Téllez; Elkin Darío Cuartas Arias

    2008-01-01

    OBJETIVO: explorar si la preeclampsia y la hipertensión gestacional son factores de riesgo para los estados prehipertensivo e hipertensivo a las doce semanas posparto. DISEÑO: estudio descriptivo prospectivo de pacientes del área metropolitana del valle de Aburrá, hospitalizadas por preeclampsia o hipertensión gestacional, a quienes se les atendió el parto en el Hospital Universitario San Vicente de Paúl de Medellín, Colombia, y se les hizo seguimiento hasta las doce semanas posparto. MÉTODO:...

  11. Una aproximación al concepto de mobbing “acoso psicológico en el sitio de trabajo”, un análisis del dispositivo móvil como posible factor de riesgo

    OpenAIRE

    Arango Mesa, María Alexandra

    2011-01-01

    1 CD-ROM La intención de este artículo consiste, mediante un rastreo bibliográfico, en realizar una descripción sencilla sobre el acoso moral, psicológico o laboral, conocido a nivel global bajo el término anglosajón mobbing; saber su definición, los antecedentes, formas y prevalencias del mismo y revisar los rasgos de personalidad y los factores organizacionales relacionados con el acoso laboral y sus efectos nocivos sobre las víctimas. En la parte final del texto se hace un análisis sobr...

  12. Afrontamiento al VIH, apoyo social y adherencia como factores mediadores en la calidad de vida en personas con VIH en tratamiento antirretroviral, con o sin diagnósticos múltiples por abuso de drogas

    OpenAIRE

    Vicioso Etxevarria, María Carmen

    2017-01-01

    454 p. La infección por el Virus de la Inmunodeficiencia Humana (VIH) constituye un paradigma del carácter multifactorial de la salud, con componentes biológicos, psicológicos y sociales que interactúan entre sí y convergen en un mejor o peor pronóstico en la calidad de la vida.Objetivo general: Consiste en analizar los factores que influyen en la calidad de vida de las personas con VIH en tratamiento antirretroviral (TARGA) que asisten a Centros de atención psicosocial en Bizkaia. Se estu...

  13. Determinación de variables cualitativas como factores claves en la programación de los proyectos de edificios en altura, región Coquimbo, Chile.

    OpenAIRE

    Oscar Contreras; Ronnie Kauer

    2015-01-01

    En el presente trabajo se realiza un análisis y se determina en términos cualitativos los factores claves que inciden en la adecuada programación de las duraciones de las actividades en los proyectos de construcción de edificios en altura en la ciudad de Coquimbo, Chile. El análisis profundiza el estudio y desarrollo del modelo estocástico pert/cpm modificado aplicado con antelación, del cual nace la búsqueda de explicaciones de las desviaciones obtenidas, encontrándose, variables del tipo cu...

  14. The Association of Health-Related Quality of Life with Severity of Visual Impairment among People Aged 40–64 Years: Findings from the 2006–2010 Behavioral Risk Factor Surveillance System

    Science.gov (United States)

    Crews, John E.; Chou, Chiu-Fang; Zack, Matthew M.; Zhang, Xinzhi; Bullard, Kai McKeever; Morse, Alan R.; Saaddine, Jinan B.

    2016-01-01

    Purpose To examine the association of health-related quality of life (HRQoL) with severity of visual impairment among people aged 40–64 years. Methods We used cross-sectional data from the 2006–2010 Behavioral Risk Factor Surveillance System to examine six measures of HRQoL: self-reported health, physically unhealthy days, mentally unhealthy days, activity limitation days, life satisfaction, and disability. Visual impairment was categorized as no, a little, or moderate/severe. We examined the association between visual impairment and HRQoL using logistic regression accounting for the survey’s complex design. Results Overall, 23.0% of the participants reported a little difficult seeing, while 16.8% reported moderate/severe difficulty seeing. People aged 40–64 years with moderate/severe visual impairment had more frequent (≥14) physically unhealthy days, mentally unhealthy days, and activity limitation days in the last 30 days, as well as greater life dissatisfaction, greater disability, and poorer health compared to people reporting no or a little visual impairment. After controlling for covariates (age, sex, marital status, race/ethnicity, education, income, state, year, health insurance, heart disease, stroke, heart attack, body mass index, leisure-time activity, smoking, and medical care costs), and compared to people with no visual impairment, those with moderate/severe visual impairment were more likely to have fair/poor health (odds ratio, OR, 2.01, 95% confidence interval, CI, 1.82–2.23), life dissatisfaction (OR 2.06, 95% CI 1.80–2.35), disability (OR 1.95, 95% CI 1.80–2.13), and frequent physically unhealthy days (OR 1.69, 95% CI 1.52–1.88), mentally unhealthy days (OR 1.84, 95% CI 1.66–2.05), and activity limitation days (OR 1.94, 95% CI 1.71–2.20; all p visual impairment among people aged 40–64 years. PMID:27159347

  15. Visual attention.

    Science.gov (United States)

    Evans, Karla K; Horowitz, Todd S; Howe, Piers; Pedersini, Roccardo; Reijnen, Ester; Pinto, Yair; Kuzmova, Yoana; Wolfe, Jeremy M

    2011-09-01

    A typical visual scene we encounter in everyday life is complex and filled with a huge amount of perceptual information. The term, 'visual attention' describes a set of mechanisms that limit some processing to a subset of incoming stimuli. Attentional mechanisms shape what we see and what we can act upon. They allow for concurrent selection of some (preferably, relevant) information and inhibition of other information. This selection permits the reduction of complexity and informational overload. Selection can be determined both by the 'bottom-up' saliency of information from the environment and by the 'top-down' state and goals of the perceiver. Attentional effects can take the form of modulating or enhancing the selected information. A central role for selective attention is to enable the 'binding' of selected information into unified and coherent representations of objects in the outside world. In the overview on visual attention presented here we review the mechanisms and consequences of selection and inhibition over space and time. We examine theoretical, behavioral and neurophysiologic work done on visual attention. We also discuss the relations between attention and other cognitive processes such as automaticity and awareness. WIREs Cogni Sci 2011 2 503-514 DOI: 10.1002/wcs.127 For further resources related to this article, please visit the WIREs website. Copyright © 2011 John Wiley & Sons, Ltd.

  16. Visualizing Series

    Science.gov (United States)

    Unal, Hasan

    2008-01-01

    The importance of visualisation and multiple representations in mathematics has been stressed, especially in a context of problem solving. Hanna and Sidoli comment that "Diagrams and other visual representations have long been welcomed as heuristic accompaniments to proof, where they not only facilitate the understanding of theorems and their…

  17. Investigating the Visual-Motor Integration Skills of 60-72-Month-Old Children at High and Low Socio-Economic Status as Regard the Age Factor

    Science.gov (United States)

    Ercan, Zülfiye Gül; Ahmetoglu, Emine; Aral, Neriman

    2011-01-01

    This study aims to define whether age creates any differences in the visual-motor integration skills of 60-72 months old children at low and high socio-economic status. The study was conducted on a total of 148 children consisting of 78 children representing low socio-economic status and 70 children representing high socio-economic status in the…

  18. Perceptions, Attitudes and Institutional Factors That Influence Academic Performance of Visual Arts Students in Ghana's Senior High School Core Curriculum Subjects

    Science.gov (United States)

    Opoku-Asare, Nana Afia; Tachie-Menson, Akosua; Essel, Harry Barton

    2015-01-01

    Senior High School (SHS) students in Ghana are required to pass all core and elective curricula subjects in the West Africa Senior School Certificate Examination (WASSCE) to qualify for higher education. Unfortunately, many Visual Arts students perform poorly or fail in English, Mathematics, Integrated Science and Social Studies, which constitute…

  19. Octadecanoides como reguladores de la defensa de las plantas

    OpenAIRE

    G. Camarena Gutiérrez

    2002-01-01

    En años recientes muchas moléculas lipoides muy potentes han sido identificadas, comprenden compuestos lipofílicos no derivados de lípidos como los brasinoesteroides triterpenoides, otros que parcialmente son de origen lipídico como los lipo-oligosacáridos, factores de nodulación de especies de Rhizobium que pueden tener parientes endógenos en las plantas, y un tercer grupo, los octadecanoides, cuyas estructuras son derivadas de ácidos grasos vegetales. Las señales mediadas por lípid...

  20. El desarrollo organizacional como facilitador del cambio

    Directory of Open Access Journals (Sweden)

    Henry Molina

    2000-01-01

    Full Text Available El Desarrollo Organizacional (DO ha surgido de las exigencias de un ambiente cambiante y del conocimiento originado por la evolución de las ciencias sociales aplicadas. Los cambios rápidos dentro del entorno organizacional han exigido procesos y estructuras organizacionales que sean mucho más flexibles y que brinden mayor capacidad de respuesta que las estructuras tradicionales. Se requieren nuevas capacidades individuales y organizacionales que puedan impulsar las iniciativas individuales y la disposición para asumir riesgos. Igualmente, debemos considerar que existen marcadas diferencias entre las características individuales de los gerentes, las características individuales de los profesionales del desarrollo organizacional, sus habilidades y conocimientos y los estilos de las intervenciones del desarrollo organizacional. Tbdas estas diferencias hacen que sea virtualmente imposible predecir con precisión el curso y los resultados de las intervenciones en las organizaciones cliente. En este documento presento un resumen de lecturas acerca del desarrollo organizacional como facilitador del cambio; y expongo un marco de referencia para la comprensión de los factores determinantes de la relación entre las intervenciones del DO y los cambios organizacionales con el fin de mejorar la predictabilidad y la efectividad de los esfuerzos de cambio de sus intervenciones. El propósito central de este documento es dotar a los agentes de cambio de conocimiento y herramientas para que comprendan las características del cambio, los métodos de aprendizaje tanto de las organizaciones como de la gente y de cómo los agentes de cambio deben diseñar sus intervenciones y posteriormente mejorar los resultados de las mismas

  1. The drone as an additional risk factor due to conditions not provided for in radiological safety at major events; O drone como fator adicional de risco decorrente de condicoes nao previstas na seguranca radiologica em grandes eventos

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Gilberto de Jesus

    2015-07-01

    Major international events are potential targets of terrorist actions, seeking instant publicity that events of this magnitude provide, with the intention of causing terror and disseminate its power to a large number of people worldwide. In this context, the critical analysis of additional risk factor linked to procedures and protocols adopted on radiation safety is important. The possibility of unforeseen situations of risk, especially those resulting from the current global technological development, is a fact. Radioactive material can be used in this type of terrorism in a wide range of devices and illicit trafficking of this material is a reality that worries the International Atomic Energy Agency. In the current technological development scenario of the world, the potential occurrence of terrorist acts using drones combined with radioactive material dispersal devices, is real. The recent history of drones incidents presents cases where, despite not having been necessarily terrorist motivation, their circumstances and characteristics favor the occurrence of malicious acts. This paper proposes to alert the need of updating the current security protocols, considering the potential association of this technology with radioactive dispersal devices. (author)

  2. Reperfusão rápida e homogênea como fator de risco da síndrome pós-reperfusão hepática durante transplante ortotópico de fígado Reperfusión rápida y homogénea como factor de riesgo del síndrome postreperfusión hepática durante transplante ortotópico de hígado Rapid and homogeneous reperfusion as a risk factor for postreperfusion syndrome during orthotopic liver transplantation

    Directory of Open Access Journals (Sweden)

    Lucas Cordoví de Armas

    2010-04-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A revascularização do órgão transplantado é um momento crucial no transplante ortotópico de fígado (TOF. Aproximadamente um terço dos pacientes desenvolve síndrome pós-reperfusão hepática (SPR, uma combinação de hipotermia, desordens metabólicas e instabilidade cardiovascular que podem levar à parada cardíaca. O objetivo deste estudo foi avaliar a relação velocidade-qualidade (RVQ da reperfusão do órgão transplantado como fator independente de predição da SPR. MÉTODOS: Todos os pacientes elegíveis que se submeteram ao TOF em nossa instituição de 1987 a março de 2009 foram incluídos. O OR ajustado da associação RVQ-SPR foi obtido através do modelo de regressão logística, incluindo oito variáveis de confusão. RESULTADOS: A proporção de pacientes que desenvolveram SPR foi maior nos pacientes com RVQ identificada como boa (75,8% do que naqueles com RVQ média ou baixa; o risco relativo ao comparar a RVQ de boa qualidade com a RVQ de baixa qualidade foi de 12,9 (IC 95%: 2,1 - 528,8. O OR ajustado foi de 132,9 (IC 95%: 10,5 - 1688,6 quando a RVQ de boa e baixa qualidade foram comparadas e de 90,9 (IC 95%: 13,8-645,2 comparando a RVQ boa com a intermediária. CONCLUSÕES: De acordo com nossos resultados, a RVQ pode ser considerada um bom fator preditivo da SPR.JUSTIFICATIVA Y OBJETIVOS: La revascularización del órgano transplantado es un momento crucial en el transplante ortotópico de hígado (TOH. Aproximadamente un tercio de los pacientes debuta con síndrome de post-reperfusión hepática (SPR, una combinación de hipotermia, desórdenes metabólicos e inestabilidad cardiovascular que pueden conllevar a la parada cardíaca. El objetivo de este estudio fue evaluar la relación velocidad-calidad (RVC, de la reperfusión del órgano transplantado como factor independiente de predicción de la SPR. MÉTODOS: Todos los pacientes elegibles que se sometieron al TOH en nuestra instituci

  3. Associação glicemia de jejum e fatores de risco como teste para rastreamento do diabete gestacional Fasting glycemia associated with risk factors as a screening test for gestational diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Wilson Ayach

    2005-09-01

    Full Text Available OBJETIVOS: comparar dois testes de rastreamento do diabete gestacional. MÉTODOS: estudo prospectivo no qual foram avaliadas 356 gestantes, sem diagnóstico prévio do diabete melito, submetidas, de modo independente, a dois testes de rastreamento: associação glicemia de jejum e fator de risco (GJ+FR e teste oral simplificado de tolerância à glicose (TTG50g. A comparação entre os métodos foi realizada pelos índices de sensibilidade (S, especificidade (E e valores preditivos positivo (VPP e negativo (VPN, resultados falsos, positivos (FP e negativos (FN e pela diferença dos resultados observados e esperados, avaliada pelo teste do Qui-quadrado (pOBJECTIVES: compare two gestational diabetes tests. METHODS: a prospective study in which 356 pregnant women, with no previous diabetes mellitus diagnoses independently submitted to two tests; fasting glycemia and risk factor association (FG+RF and the simplified oral test for glucose tolerance (TTG50g. Methods of comparison were performed by sensitivity (S and (ES specificity indexes, positive predictive values (PPV and negative predictive values (NPV, false results, false positive (FP and false negative (FN and by the difference of the results determined and expected, evaluated through the Chi-Square Test (p<0.05. RESULTS: FG+RF association determined diagnostic confirmation in a larger number of patients (187; 52.5% than TTG50g (49; 13.8%. This difference was significant (p<0.05. The FG+RF association indicated a sensitivity of 83.7% and negative predictive value (NPV of 95.3% as compared to TTG50g. CONCLUSIONS: the high sensitivity rates and NPV from the association of FG+RF as compared to TTG50g and its simplicity, practicality, low cost and easy replication are positive qualities for gestational diabetes testing indication.

  4. Desarrollo del talento humano como factor clave para el desarrollo organizacional, una visión desde los líderes de gestión humana en empresas de Bogotá D.C.

    Directory of Open Access Journals (Sweden)

    Claudia Esmeralda Pardo Enciso

    2014-11-01

    Full Text Available Organizational development has been a movement that emerged after 1962 as an educational mechanism that attempts tomodify the structures, beliefs and values of individuals within organizations, since the groups are inevitably subject to a process of rapid change in all areas (College of Bachelors, 2005. Moreover, this is the result of organizational change that emerges froman identified need, which occurs in the interest of changing a management strategy focused on processes or goals, improve organizational climate, transform culture, and reduce the impact of processes of division or business fusion and among other aspects, the effective participation of its members in organizational goals. It is for this reason that the role of human capital in all processes of organizational change is framed within a analysis vision, anticipate and potentiate behavior, as well as internaldynamic relations, knowledge and the what to make of people in context. The main purpose of this study is to understand how the processes of training and competences development became key to the organizational transformation in companies in Bogotá City, from the viewpoint of the leaders of Human Resources managers. The methodology is based on an exploratory - descriptive study with a co relational goal as it seeks to reach even better understanding of the phenomenon being studied. To this end the design and implementation was performed through the design and application of semi-structured interviews and surveys as tools for data collection, by which intentional results sampled 81 companies in Bogotá that developed models for staff development. The expected result is to identify how these programs have become a key factor for organizational development.

  5. Substantial adverse association of visual and vascular comorbidities on visual disability in multiple sclerosis.

    Science.gov (United States)

    Marrie, Ruth Ann; Cutter, Gary; Tyry, Tuula

    2011-12-01

    Visual comorbidities are common in multiple sclerosis (MS) but the impact of visual comorbidities on visual disability is unknown. We assessed the impact of visual and vascular comorbidities on severity of visual disability in MS. In 2006, we queried participants of the North American Research Committee on Multiple Sclerosis (NARCOMS) about cataracts, glaucoma, uveitis, hypertension, hypercholesterolemia, heart disease, diabetes and peripheral vascular disease. We assessed visual disability using the Vision subscale of Performance Scales. Using Cox regression, we investigated whether visual or vascular comorbidities affected the time between MS symptom onset and the development of mild, moderate and severe visual disability. Of 8983 respondents, 1415 (15.9%) reported a visual comorbidity while 4745 (52.8%) reported a vascular comorbidity. The median (interquartile range) visual score was 1 (0-2). In a multivariable Cox model the risk of mild visual disability was higher among participants with vascular (hazard ratio [HR] 1.45; 95% confidence interval [CI]: 1.39-1.51) and visual comorbidities (HR 1.47; 95% CI: 1.37-1.59). Vascular and visual comorbidities were similarly associated with increased risks of moderate and severe visual disability. Visual and vascular comorbidities are associated with progression of visual disability in MS. Clinicians hearing reports of worsening visual symptoms in MS patients should consider visual comorbidities as contributing factors. Further study of these issues using objective, systematic neuro-ophthalmologic evaluations is warranted.

  6. Medidas antropométricas como preditoras de fatores de risco cardiovascular na população urbana do Irã Anthropometric measures as predictors of cardiovascular disease risk factors in the urban population of Iran

    Directory of Open Access Journals (Sweden)

    Reza Gharakhanlou

    2012-02-01

    are an important public health problem in society, due to their association with various chronic diseases. OBJECTIVE: The purpose of this study is to determine the prevalence and distribution of overweight and obesity, using different anthropometric measurements and to identify the best anthropometric indicator which is most closely related to cardiovascular disease (CVD risk factors in an Iranian urban population. METHODS: This cross-sectional study was conducted with 991 men and 1188 women aged 15 to 64 years. Body mass index (BMI, waist circumference (WC, waist-to-hip ratio (WHR, waist-to-height ratio (WHtR and percentage of body fat were measured. A fasting blood specimen was obtained. CVD risk factors, including fasting blood glucose, triglycerides, total cholesterol (Tchol, low-density (LDL-C and high-density-lipoprotein cholesterol (HDL-C were assessed. RESULTS: Based on BMI, more than 49% of men and 53% of women were either overweight or obese with 10.2% of men and 18.6% of women being obese. In both men and women, the prevalence of overweight was greater among 40-49 year olds and the prevalence of obesity was greater among those 50+ years. Using the multiple regression analysis, BMI, WHtR and WHR explained the highest percentage of variation of triglycerides, Tchol/HDL-C ratio and LDL-C in men, respectively, whereas WHR explained the highest percentage of variation of triglycerides and WC explained the highest percentage of variation of Tchol/HDL-C ratio and LDL-C in women. CONCLUSION: Our data indicated that WHR and WHtR were the anthropometric indicators that best predicted CVD risk factors in men and WHR and WC in women.

  7. Visual Storytelling

    OpenAIRE

    Ting-Hao; Huang; Ferraro, Francis; Mostafazadeh, Nasrin; Misra, Ishan; Agrawal, Aishwarya; Devlin, Jacob; Girshick, Ross; He, Xiaodong; Kohli, Pushmeet; Batra, Dhruv; Zitnick, C. Lawrence; Parikh, Devi; Vanderwende, Lucy; Galley, Michel

    2016-01-01

    We introduce the first dataset for sequential vision-to-language, and explore how this data may be used for the task of visual storytelling. The first release of this dataset, SIND v.1, includes 81,743 unique photos in 20,211 sequences, aligned to both descriptive (caption) and story language. We establish several strong baselines for the storytelling task, and motivate an automatic metric to benchmark progress. Modelling concrete description as well as figurative and social language, as prov...

  8. Flow visualization

    International Nuclear Information System (INIS)

    Weinstein, L.M.

    1991-01-01

    Flow visualization techniques are reviewed, with particular attention given to those applicable to liquid helium flows. Three techniques capable of obtaining qualitative and quantitative measurements of complex 3D flow fields are discussed including focusing schlieren, particle image volocimetry, and holocinematography (HCV). It is concluded that the HCV appears to be uniquely capable of obtaining full time-varying, 3D velocity field data, but is limited to the low speeds typical of liquid helium facilities. 8 refs

  9. A Small Disc Area Is a Risk Factor for Visual Field Loss Progression in Primary Open-Angle Glaucoma: The Glaucoma Stereo Analysis Study

    Directory of Open Access Journals (Sweden)

    Yasushi Kitaoka

    2018-01-01

    Full Text Available Purpose. The Glaucoma Stereo Analysis Study, a cross-sectional multicenter collaborative study, used a stereo fundus camera (nonmyd WX to assess various morphological parameters of the optic nerve head (ONH in glaucoma patients. We compared the associations of each parameter between the visual field loss progression group and no-progression group. Methods. The study included 187 eyes of 187 patients with primary open-angle glaucoma or normal-tension glaucoma. We divided the mean deviation (MD slope values of all patients into the progression group (<−0.3 dB/year and no-progression group (≧−0.3 dB/year. ONH morphological parameters were calculated with prototype analysis software. The correlations between glaucomatous visual field progression and patient characteristics or each ONH parameter were analyzed with Spearman’s rank correlation coefficient. Results. The MD slope averages in the progression group and no-progression group were −0.58 ± 0.28 dB/year and 0.05 ± 0.26 dB/year, respectively. Among disc parameters, vertical disc width (diameter, disc area, cup area, and cup volume in the progression group were significantly less than those in the no-progression group. Logistic regression analysis revealed a significant association between the visual field progression and disc area (odds ratio 0.49/mm2 disc area. Conclusion. A smaller disc area may be associated with more rapid glaucomatous visual field progression.

  10. A Small Disc Area Is a Risk Factor for Visual Field Loss Progression in Primary Open-Angle Glaucoma: The Glaucoma Stereo Analysis Study.

    Science.gov (United States)

    Kitaoka, Yasushi; Tanito, Masaki; Yokoyama, Yu; Nitta, Koji; Katai, Maki; Omodaka, Kazuko; Nakazawa, Toru

    2018-01-01

    The Glaucoma Stereo Analysis Study, a cross-sectional multicenter collaborative study, used a stereo fundus camera (nonmyd WX) to assess various morphological parameters of the optic nerve head (ONH) in glaucoma patients. We compared the associations of each parameter between the visual field loss progression group and no-progression group. The study included 187 eyes of 187 patients with primary open-angle glaucoma or normal-tension glaucoma. We divided the mean deviation (MD) slope values of all patients into the progression group (field progression and patient characteristics or each ONH parameter were analyzed with Spearman's rank correlation coefficient. The MD slope averages in the progression group and no-progression group were -0.58 ± 0.28 dB/year and 0.05 ± 0.26 dB/year, respectively. Among disc parameters, vertical disc width (diameter), disc area, cup area, and cup volume in the progression group were significantly less than those in the no-progression group. Logistic regression analysis revealed a significant association between the visual field progression and disc area (odds ratio 0.49/mm 2 disc area). A smaller disc area may be associated with more rapid glaucomatous visual field progression.

  11. História familiar em segundo grau como fator de risco para câncer de mama Second-degree family history as a risk factor for breast cancer

    Directory of Open Access Journals (Sweden)

    Rafael Marques de Souza

    1998-09-01

    Full Text Available Objetivos: investigar a associação entre história familiar de câncer de mama em segundo grau e o risco de apresentar a doença. Métodos: estudo de caso-controle com casos incidentes. Foram avaliados 66 casos e 198 controles selecionados entre mulheres que realizaram mamografia em Serviço Privado de Radiodiagnóstico no período de janeiro de 94 a julho de 97. Casos e controles foram pareados quanto idade, idade da menarca, da primeira gestação e da menopausa, paridade, uso de anticoncepcionais orais e terapia de reposição hormonal. Resultados: não houve diferença significativa entre casos e controles em relação a outros fatores de risco que não história familiar em segundo grau. As pacientes com câncer de mama apresentaram maior chance de ter história familiar em segundo grau comparadas aos controles (RC=2,77; IC 95%, 1,03-7,38; p=0,039. Conclusões: a neoplasia maligna de mama está associada à presença de história familiar em segundo grau para essa doença.Purpose: to evaluate the association between second-degree family history of breast cancer and the risk to develop the disease. Methods: case-control study of incident cases. Sixty-six incident breast cancer cases and 198 controls were selected among women who were submitted to mammography in a private clinic between January 1994 and July 1997. Cases and controls were paired regarding age, age at menarche, at first live birth, at menopause, parity, oral contraceptives and use of hormonal replacement therapy. Results: there was no significant difference between cases and controls regarding all risk factors evaluated, besides second-degree family history. Patients with breast cancer were more likely to have second-degree relatives with breast cancer when compared to controls (OR=2.77; 95% CI, 1.03-7.38; p=0.039. Conclusions: malignant neoplasm of the breast is significantly associated with a second-degree family history of this disease.

  12. Which visual functions depend on intermediate visual regions? Insights from a case of developmental visual form agnosia.

    Science.gov (United States)

    Gilaie-Dotan, Sharon

    2016-03-01

    A key question in visual neuroscience is the causal link between specific brain areas and perceptual functions; which regions are necessary for which visual functions? While the contribution of primary visual cortex and high-level visual regions to visual perception has been extensively investigated, the contribution of intermediate visual areas (e.g. V2/V3) to visual processes remains unclear. Here I review more than 20 visual functions (early, mid, and high-level) of LG, a developmental visual agnosic and prosopagnosic young adult, whose intermediate visual regions function in a significantly abnormal fashion as revealed through extensive fMRI and ERP investigations. While expectedly, some of LG's visual functions are significantly impaired, some of his visual functions are surprisingly normal (e.g. stereopsis, color, reading, biological motion). During the period of eight-year testing described here, LG trained on a perceptual learning paradigm that was successful in improving some but not all of his visual functions. Following LG's visual performance and taking into account additional findings in the field, I propose a framework for how different visual areas contribute to different visual functions, with an emphasis on intermediate visual regions. Thus, although rewiring and plasticity in the brain can occur during development to overcome and compensate for hindering developmental factors, LG's case seems to indicate that some visual functions are much less dependent on strict hierarchical flow than others, and can develop normally in spite of abnormal mid-level visual areas, thereby probably less dependent on intermediate visual regions. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. A violência doméstica como indicador de risco no rastreamento da depressão pós-parto Domestic violence as a risk factor in the screening of for post-partum depression

    Directory of Open Access Journals (Sweden)

    Rosiane Mattar

    2007-09-01

    Full Text Available OBJETIVO: apurar a freqüência de risco para depressão pós-parto (DP em puérperas de hospital de São Paulo, região Sudeste do Brasil, e determinar fatores associados - entre eles a violência doméstica (VD. MÉTODOS: estudo descritivo, tipo corte transversal. Participaram 133 mulheres, que tiveram partos com idade gestacional de 20 semanas ou mais, no período de agosto a setembro de 2005, em maternidade terciária em São Paulo (Brasil. Foram entrevistadas empregando-se a versão em português do Abuse Assessment Screen para o diagnóstico de violência e responderam questionário de auto-avaliação do risco de DP (Edinburgh Postnatal Depression Scale. As variáveis foram representadas por freqüências absoluta e relativa. A associação entre as variáveis de interesse e DP foi avaliada pelo teste do chi2 ou exato de Fisher. Adotou-se o nível de significância de 5%. RESULTADOS: o risco de DP foi identificado em 24 puérperas (18%. Das mulheres entrevistadas, 38,3% referiram história de abusos. Observou-se associação entre a ocorrência de VD após os 15 anos de idade e o risco de depressão (p=0,03. A ocorrência de abusos no grupo de mulheres com probabilidade de apresentar DP foi de 58,3%, proporção significativamente maior do que a observada no grupo controle com 33,9%. CONCLUSÕES: a probabilidade de apresentar depressão foi alta entre as puérperas assistidas em maternidade terciária da região Sudeste do Brasil. A VD sofrida após os 15 anos de idade esteve estatisticamente associada ao risco de DP.PURPOSE: to assess the prevalence of the risk of post-partum depression in women in the post-natal ward of a hospital in São Paulo city, in the southeastern region of Brazil, and analyze the associated factors, including domestic violence (DV. METHODS: this was a descriptive, cross-sectional study. The participants were 133 women with at least 20 weeks of gestation age, who delivered their babies from August to September

  14. CUSTOMER SUBJECTIVE PERCEPTION AS A MAIN ISSUE IN CONCEPTUAL PRODUCT DESING: A METHODOLOGICAL PROPOSAL LA PERCEPCIÓN SUBJETIVA COMO FACTOR PRIMORDIAL EN EL DISEÑO CONCEPTUAL DE PRODUCTOS: UNA PROPUESTA METODOLÓGICA

    Directory of Open Access Journals (Sweden)

    Jaime A León Duarte

    2008-09-01

    Full Text Available Present economic scenarios compel organizations to introduce new strategies directed to increase their competitiveness. Industrial design is not detached from this tendency; commonly organizations declare that their products are the effect of " listening to the user" . Nevertheless, this process is identified by two basic characteristics: the associated linguistic nature to and the difficulty for interpreting, categorizing and incorporating the user's needs into product specifications. In this sense, the lack of solid and reliable mechanisms to integrate the user's perceived requirements into product characteristics is well known. A particular emphasis is made in the need to incorporate intangible attributes related to product perception by the user. A mechanism to detect and interpret product attributes in the conceptual or early desig and, a procedure to evaluate the user's subjective perception are incorporated. The methodology draws upon particular mechanisms for detection, interpretation and categorization of the requirements in two basic domains. These attributes, once identified, are incorporated in an affordances structure that shows sets of interactions in which the properties of the object are perceived by the user as action possibilities. This structure serves as a guide for the creative team in the detailed design phase, incorporating aspects that the user values the most, employing a combination of mechanisms that include the Kano method, Osgood's semantic differentials, factor analysis and fuzzy logic.El escenario económico actual obliga a las organizaciones a implantar estrategias novedosas, dirigidas a incrementar su competitividad. El diseño industrial no es ajeno a esto; en la actualidad las organizaciones presumen que sus productos son resultado de escuchar al usuario. Sin embargo, este proceso se distingue por dos características: la naturaleza lingüística asociada al mismo y la dificultad para interpretar, categorizar y

  15. A exposição ao chumbo como fator de risco para alterações no desenvolvimento da linguagem Lead exposure as a risk factor for alterations in language development

    Directory of Open Access Journals (Sweden)

    Mariana San Jorge

    2008-06-01

    deficits in the scale's language items; one of them had deficits in all items. CONCLUSION: No significant correlation was found between lead concentration and the degree of the language deficits of the subjects, however, the study suggests that lead contamination became a risk factor for deficits in language development. Therefore, further studies are necessary to verify the damages that this metal can cause in people exposed to it, especially when they are in development.

  16. Como responder ao momento presente?

    Directory of Open Access Journals (Sweden)

    Maria Filomena Molder

    2013-12-01

    Full Text Available http://dx.doi.org/10.5007/1984-784X.2013v13n19p13 Foi com esta pergunta — já um efeito de um primeiro encontro entre Irene Pimentel e eu própria — que decidimos desafiar colegas, estudantes e funci­onários da nossa Faculdade, FCSH (Faculdade de Ciências Sociais e Huma­nas, de outras Faculdades da Universidade Nova de Lisboa, de outras Uni­versidades e todos os interessados em con­siderar e discutir em comum aquilo que se passava em Portugal e que no anúncio da Jornada de 6 de De­zembro de 2012 se descrevia como um “processo de desmantela­mento social, económico e cultural sem precedentes — pese embora tantas compara­ções, baseadas na premissa da ‘eterna repetição’ — e cujas consequências não param de exceder as previsões dos responsáveis por esse desmantelamento”. Acedendo com todo o empenho e gratidão ao convite que me foi dirigido por Humberto Brito para fazer uma resenha da Jornada a publicar no primeiro número de Forma de Vida (saúdo a revista e o título, decidi-me, no entanto, a pôr de lado a resenha, que sob a forma de “Editorial” será em breve publi­cada no blogue Responder ao Momento Presente, entre­tanto criado, conjuntamente com os textos escritos pelos nossos convidados, com as parti­cipações de pessoas que corresponderam ao nosso apelo e ainda com contri­bui­ções que se alargaram para lá da Jornada; a que se juntará uma gravação em video, também disponível no Youtube.   Texto publicado originalmente em Forma de Vida, Lisboa, n.1, fev. 2013. Agrade­cemos à autora por permitir a republicação neste número do Boletim. [N.E.

  17. Morphofunctional malignancy grading is a valuable prognostic factor for colorectal cancer Graduação morfofuncional de malignidade como valioso fator prognóstico para o câncer colorretal

    Directory of Open Access Journals (Sweden)

    Denise Gonçalves Priolli

    2010-09-01

    Full Text Available CONTEXT: Novel strategies are needed to identify more efficient biomarkers to accurately diagnose prognose and improve the treatment outcome of colorectal cancer. OBJECTIVES: To analyze the functional and morphological features of colorectal cancer to identify the neoplastic patterns that affect patient survival. METHODS: Forty-five patients with colorectal cancer were followed for a minimum of 3 years. Blood levels of carcinoembryonic antigen (CEA were measured by chemiluminescence and immunohistochemical analysis of tissue expression followed by computer-assisted image processing. Tumors were assigned to three morphofunctional classes. The morphofunctional classification was based on combination between histological differentiation and cell polarization. The functional characterization was based on the CEA cell polarization. The tissue polarization of CEA was classified in well-polarized, moderately polarized or nonpolarized cells. Morphofunctional staging was defined by the association between morphofunctional class (polarization and histological differentiation and TNM by score given to each one classification. RESULTS: There was an association between increased CEA tissue expression and loss of histological differentiation (P = 0.01 or loss of polarization capacity (P = 0.03. There was a progressive increase in tissue CEA quantities in accordance with the proposed morphofunctional grading system. Plasma levels of CEA were increased in advanced tumor stages. Blood levels of CEA were increased in advanced morphofunctional stages (P = 0.001. There was a relationship between survival outcome and morphofunctional staging (P = 0.005. CONCLUSION: Morphofunctional staging is a valuable prognostic factor for colorectal cancer and it correlates with plasma CEA levels.CONTEXTO: Novas estratégias são necessárias à identificação de marcadores que promovam precisão no diagnóstico, no prognóstico e melhorem o tratamento de pacientes com c

  18. Efeito do treinamento físico como modulador positivo nas alterações no eixo neuroimunoendócrino em indivíduos com insuficiência cardíaca crônica: possível atuação do fator de necrose tumoral-alfa Efecto del entrenamiento físico como modulador positivo en las alteraciones en el eje neuroinmunoendócrino en indivíduos con insuficiência cardíaca crônica: posible actuación como factor de necrosis tumoral-alfa Effect of physical training as positive modulator on the alterations in the neuro-immune-endocrine axis in patients with chronic heart failure: possible role of the tumoral necrosis factor-alpha

    Directory of Open Access Journals (Sweden)

    Luís Fernando Bicudo Pereira Costa Rosa

    2005-08-01

    responsble por la progresión en el deterioro clínico en la ICC. En este cuadro, la principal citoquina envuelta en el cuadro fisiopatológico de la ICC es el factor de necrosis tumoral-alfa (TNF-alfa. Así, el TF puede actuar en el cuadro de ICC de dos maneras, mejorando el desempeño durante el ejercicio físico, bien como atenuando el cuadro de deterioro de elevada concentración de citoquinas pro-inflamatórias en el sistema cardiovascular, pudiendo representar una importante opción inmunomodulatoria, y de esta forma, permitir una mejora significativa en el cuadro clínico del paciente.Chronic physical exercise or physical training (PT has been widely used in the last years with therapeutic and preventive purposes in a series of pathophysiological conditions, including cardiovascular disease. Besides the cardiovascular benefits, PT seems capable to modulate in pathological conditions, at the presence of an abnormal inflammatory response, including over expression of proinflammatory cytokines through a neuro-immune-endocrine interaction. Nowadays chronic heart failure (CHF is reviewed as the consequence of an interplay of hemodynamic, neurohormonal, immunological and endocrine mechanisms. This abnormal inflammatory response, including the over expression of proinflammatory cytokines may be proposed as responsible for the progression and clinical deterioration in CHF. Tumor necrosis factor-alpha (TNF-alpha is the main proinflammatory cytokines involved in the inflammatory cascade implicated in the pathophysiological of CHF. PT may improve exercise performance by modifying the inflammatory status, as well as by allowing reversing the inflammation-induced harmful effects on the cardiovascular system, and that PT may represent an important immunomodulatory option that may be possible to intervene in the progression of the disease.

  19. Causes of visual loss and their risk factors: an incidence summary from the Barbados Eye Studies Causas de la pérdida visual y sus factores de riesgo: resumen de la incidencia a partir de los Estudios de Oftalmología de Barbados

    Directory of Open Access Journals (Sweden)

    M. Cristina Leske

    2010-04-01

    Full Text Available OBJECTIVES: To summarize incidence and risk factors for each main cause of visual loss in an African-Caribbean population and discuss the implications of these data from a public health perspective. METHODS: A nationally representative cohort (n = 4 709; ages 40-84 years at baseline had ophthalmic and other examinations over 9 years. Incidence rates were estimated by the product-limit approach. Risk factors were evaluated from Cox regression models. RESULTS: Average incidence was ~ 0.1% per year for blindness (OBJETIVO: Presentar un resumen de la incidencia y los factores de riesgo de cada causa principal de pérdida de la visión en una población afrocaribeña y examinar las implicaciones de estos datos desde una perspectiva de salud pública. MÉTODOS: En una cohorte representativa al nivel nacional (n = 4 709; edades de 40 a 84 años al inicio se hicieron exploraciones oftálmicas y de otros tipos durante nueve años. Se calcularon las tasas de incidencia mediante el método del producto-límite. Los factores de riesgo se evaluaron mediante modelos de regresión de Cox. RESULTADOS: La incidencia promedio fue ~ 0,1% al año para la ceguera (< 6/120 y de 0,7% al año para la visión deficiente (< 6/18 a 6/120, que aumentó de manera pronunciada con la edad (P < 0,05 y afectó a la calidad de vida relacionada (P < 0,05. Las cataratas y el glaucoma de ángulo abierto relacionados con la edad representaron 73,2% de los casos de ceguera, y 8,9% de los casos de retinopatía diabética; las cataratas causaron dos tercios de los casos de visión deficiente. La incidencia media fue de 5,1% al año en todos los cambios del cristalino (opacidades graduables o no graduables o afaquia, y de 0,4% al año en la cirugía de cataratas. La incidencia del glaucoma de ángulo abierto definitivo fue de 0,5% al año (0,9% en el caso de la sospecha o la probabilidad; 53% de los pacientes afectados no era conciente. Las personas que padecían diabetes tenían una

  20. Direct visualization of epidermal growth factor receptors (EGFR) in A431 and placental cell membrane by western blot with 125I-EGF

    International Nuclear Information System (INIS)

    Lin, P.H.; Selinfreund, R.; Wharton, W.

    1986-01-01

    Using the western blot technique, they have devised a new procedure that allowed the direct visualization of both the 150KD and the 170KD forms of EGFR by its natural ligand, 125 I-EGF. A431, and placental plasmalemma were purified and solubilized in either SDS-PAGE buffer (without DTT, EDTA) or Triton X-100 (0.5%), resolved on PAGE and electrophoretically transferred onto nitrocellulose (NC) paper. In the absence of boiling, SDS did not denature the EGFR. Although EGER band can be detected after hybridization with 125 I-EGF, the receptor signal was considerably improved with the addition of 0.1% Tween-20. The binding of 125 I-EGF to the both the 150KD and the 170KD bands of the EGFR was specific, reversible and increased with the amount of membrane protein present. The direct visualization of the EGFR using its natural ligand eliminated the necessity for the time consuming antibody preparation. Presently, they are using this technique to identify specific receptors for other ligands

  1. Organización como factor de crecimiento agropecuario

    OpenAIRE

    Marcos Gallacher

    2005-01-01

    This paper presents "organizational challenges" facing the Argentine agricultural and agroindustrial sector. It is argued that organization, and not only technology, determine efficiency and growth. The paper presents several case-studies refered to organizational issues, emphasizing vertical integration, managerial processes, cooperative entreprises and private production of public goods.

  2. Factores que influyen en el proceso de enseñanza – aprendizaje en el área español como segunda lengua, en quinto y sexto grado en la modalidad de multigrado en la escuela Bilingüe: “Enmanuel”. Año 2007 – 2008. Rosita, RAAN.

    Directory of Open Access Journals (Sweden)

    Isabel Lackwood Bustillo

    2012-09-01

    Full Text Available Esta investigación es de tipo cualitativa con un enfoque fenomenológico, realizada en el centro bilingüe “Emmanuel” de la Comunidad de Bambana. El objetivo de la investigación es analizar los factores que influyen en el proceso enseñanza – aprendizaje en las áreas de lengua materna y español como segunda lengua en los niveles de quinto y sexto grado, modalidad multigrada de Educación Primaria. Para la recolección de la información se realizaron entrevistas individuales a docentes, padres de familia, estudiantes, directora y coordinadora del Programa de Educación Bilingüe Intercultural –PEBI-. Se hicieron dos grupos focales: uno con docentes y otro con padres de familia que conforman el Consejo Escolar. También observaciones de clase a los docentes en las áreas de idioma español y lengua materna. Entre los factores pedagógicos que influyeron están: los docentes utilizan pocas técnicas, métodos y estrategias en el desarrollo de las clases; no disponen de materiales didácticos como: programa, guías metodológicas, guías de aprendizaje y textos en idioma miskitu; no reciben asesoría pedagógica de parte del Programa de Educación Bilingüe Intercultural. Entre los factores económicos encontrados se destaca el desempleo de los padres de familia con la consecuencia que limita la buena alimentación de la niñez.Enfermedades que afectan la salud y que repercute en la inasistencia y por ende a un bajo rendimiento académico. Las niñas y niños no reciben clases en su lengua materna miskitu, porque el docente no cuenta con materiales didácticos en idioma miskitu yporque los padres de familia no están de acuerdo en que sus hijas e hijos reciban ese idioma en la escuela, expresando que ellos lo practican en la casa. Prefieren que sean educados en idioma español para evitar dificultades en la Educación Secundaria. 

  3. Caracterización Fitoquímica y Efecto Hipoglucemiante de Tecoma stans y su Relación con la Presencia del Cromo como Factor de Tolerancia a la Glucosa Phytochemical Characterization and Hypoglycemic Effect of the Tecoma stans and its Relationship to the Presence of Chromium as a Factor for Glucose Tolerance

    OpenAIRE

    Ma. de J Ibarra; Pedro C Cantú; María J Verde; Azucena Oranday

    2009-01-01

    Se realizó la caracterización fitoquímica y la determinación del cromo en hojas de Tecoma stans, observando su efecto hipoglucemiante en animales con diabetes mellitus inducida en forma experimental. Como hiperglucemiante se utilizó estreptozotocina en ratas machos Sprague-Dawley a una dosis de 45 mg/kg de peso. Los tratamientos experimentales, todos por vía oral, fueron los siguientes para grupos diabéticos y grupos no diabéticos: agua, infusión de la planta, picolinato de cromo, e infusión ...

  4. Lenguaje escrito y lenguaje visual.

    Directory of Open Access Journals (Sweden)

    Miguel Urabayen

    2015-01-01

    Full Text Available Debe considerarse como periodistas no solo a los redactores sino también a los fotógrafos, infografistas, diseñadores e ilustradores que trabajan para el periódico pues éstos son periodistas del lenguaje visual. Por eso se sugiere a las Facultades y Escuelas de Periodismo o Comunicación incluir en la malla curricular de la comunicación estudios sobre Cultura de la imagen periodística impresa.

  5. Exposure to cats and dogs as risk factors for wheezing in preschool children: are their effects modified by removal? Exposición a perros y gatos como factores de riesgo para sibilancias en niños en edad escolar. ¿Se modifican los efectos tras la eliminación? A exposição a cães e gatos como fatores de risco para sibilância em crianças em idade pré-escolar: são os seus efeitos modificados pela remoção?

    Directory of Open Access Journals (Sweden)

    Manuel Sánchez Solís

    2013-06-01

    perros en el hogar, y mostrar hasta qué punto la retirada de los mismos modifica dicha asociación.Métodos: Los padres de 1784 niños en edad preescolar (media de edad 4,08 ± 0,8 cumplimentaron los cuestionarios que previamente habían sido validados. Se realizó una estratificación de los niños en función de la presencia (20 % o ausencia de sibilancias en el último año. Se recogió la información relacionada con la exposición actual a gatos o perros y durante el primer año de vida, además de información respecto a la retirada de las mascotas.Resultados: En el grupo con sibilancias se encontró una mayor proporción de familias que durante el primer año de vida del niño tuvieron un gato en casa. La proporción de familias con perro era ligeramente más alta en dicho grupo. La exposición a gatos apareció como factor de riesgo significativo si el gato había estado presente en el hogar durante el primer año de vida del niño (Odds Ratio ajustada [aOR] 1,73, IC 95 % 1,04 – 2,88, y se encontró una asociación incluso más alta con la exposición actual (aOR 2, IC 95 % 1,22 – 3,26. La asociación más elevada (aOR 2,68, IC 95 % 1,32 – 5,44 se encontró en el subgrupo de familias que habían retirado el gato del hogar. La exposición a perros no se mostró como factor de riesgo significativo, ni durante el primer año de vida (aOR 1,24, IC 95 % 0,88 – 1,76, ni en el momento actual (aOR 1,04, IC 95 % 0,73 – 1,50. Sin embargo, en el grupo que había retirado el perro del hogar sí se encontró una asociación significativa (aOR 5,88, IC 95 % 2,62 – 13,17.Conclusiones: La exposición a los alergenos del gato es un factor de riesgo para el asma si dicha exposición tiene lugar en los primeros 12 meses de vida. Sin embargo este factor tiene una influencia limitada si ocurre más allá del primer año de vida. Es probable que los niños con tendencia a desarrollar alergias se beneficien del control de la exposición a alergenos medioambientales

  6. La sabidur?a como competencia gerencial

    OpenAIRE

    Pinzon-Barrios, Ana-Maria; Cort?s Zapata, Gabriela

    2012-01-01

    Aunque el concepto de sabidur?a ha sido ampliamente estudiado por expertos de ?reas como la filosof?a, la religi?n y la psicolog?a, a?n enfrenta limitaciones en cuanto a su definici?n y evaluaci?n. Por esto, el presente trabajo tiene como objetivo, formular una definici?n del concepto de sabidur?a que permita realizar una propuesta de evaluaci?n del concepto como competencia en los gerentes. Para esto, se realiz? un an?lisis documental de tipo cualitativo. De esta manera, se analizaron divers...

  7. Los ritmos como terapia para la impulsividad

    Directory of Open Access Journals (Sweden)

    Mónica Triviño

    2012-10-01

    Full Text Available Investigaciones recientes muestran que el uso de patrones rítmicos facilita la respuesta óptima en el tiempo, por lo que el entrenamiento mediante ritmos podría proponerse como terapia novedosa ante problemas como la impulsividad. Esto podría beneficiar a pacientes con daño prefrontal o personas con trastorno por déficit de atención e hiperactividad (TDAH, que suelen mostrar conductas impulsivas, así como dificultad para estimar el paso del tiempo.

  8. La transparencia como objetivo del desarrollo sostenible

    OpenAIRE

    Juan José Gilli

    2017-01-01

    El presente trabajo tiene por propósito precisar el significado de la transparencia en la gestión pública como una exigencia de carácter ético relacionada con la información que los agentes deben dar en el ámbito sus funciones, reconociendo al ciudadano como el dueño de la información que producen y guardan. La transparencia tiene un especial valor como herramienta para combatir la corrupción y, de esa forma, contribuir a la meta de lograr instituciones inclusivas y efectivas para el desarrol...

  9. La universidad como organización

    Directory of Open Access Journals (Sweden)

    Luis Aurelio Ordoñez Burbano

    2001-07-01

    Full Text Available El presente artículo versa sobre la unviersidad como organización y tiene como objetivo hacer una reflexión sobre la misión de la universidad colombiana en el marco de diversos entornos. Como punto de partida, se propone una precisión sobre la misión de la universidad moderna y la investigación, a diferencia de la universidad colonial y decimonónica limitada a la divulgación de conocimientos preexistentes.

  10. Carolee Schneemann. El cine como autobiografía, la artista como actriz, el cuerpo como pincel

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    María Barbaño González-Moreno

    2017-10-01

    Full Text Available Este trabajo analiza la relación de cine y mujer a partir de la obra fílmica de Carolee Schneemann, principalmente de su obra autobiográfica Fuses (1964-1966. Desde ella, se plantea el papel de la artista como productora, directora y protagonista principal de todas sus obras. Reflexionamos así sobre el rol del creador-director como actor que derivaría en la consecución de una obra cinematográfica de tintes necesariamente autobiográficos. Asumiendo la visión vanguardista del cine como diario personal/Entendido el cine como diario personal, Schneemann va a explorar en su obra diferentes aspectos de la identidad y la sexualidad de la mujer en un cine artístico, alternativo y de tendencia política feminista. Entendido/Asumido su cine como elemento plástico, la artista explorará de forma paralela la experimentación matérica y física a través de los cuerpos filmados así como de la propia materialidad de la película, excluyendo toda posibilidad narrativa, dramática e ilusoria de proyección del espectador en el espacio cinematográfico y el espacio privado del creador.

  11. Visualization rhetoric: framing effects in narrative visualization.

    Science.gov (United States)

    Hullman, Jessica; Diakopoulos, Nicholas

    2011-12-01

    Narrative visualizations combine conventions of communicative and exploratory information visualization to convey an intended story. We demonstrate visualization rhetoric as an analytical framework for understanding how design techniques that prioritize particular interpretations in visualizations that "tell a story" can significantly affect end-user interpretation. We draw a parallel between narrative visualization interpretation and evidence from framing studies in political messaging, decision-making, and literary studies. Devices for understanding the rhetorical nature of narrative information visualizations are presented, informed by the rigorous application of concepts from critical theory, semiotics, journalism, and political theory. We draw attention to how design tactics represent additions or omissions of information at various levels-the data, visual representation, textual annotations, and interactivity-and how visualizations denote and connote phenomena with reference to unstated viewing conventions and codes. Classes of rhetorical techniques identified via a systematic analysis of recent narrative visualizations are presented, and characterized according to their rhetorical contribution to the visualization. We describe how designers and researchers can benefit from the potentially positive aspects of visualization rhetoric in designing engaging, layered narrative visualizations and how our framework can shed light on how a visualization design prioritizes specific interpretations. We identify areas where future inquiry into visualization rhetoric can improve understanding of visualization interpretation. © 2011 IEEE

  12. External aggression to the limb as a predictive factor in the evolution of patients undergoing arterial revascularization Agressão externa aos membros inferiores como fator preditivo na evolução dos pacientes submetidos a revascularização arterial

    Directory of Open Access Journals (Sweden)

    Nelson Wolosker

    2005-12-01

    Full Text Available PURPOSE: A variety of predictive factors for the evolution of arterial grafts in patients with critical ischemia have been well defined in clinical studies, including diabetes mellitus, dialytic renal insufficiency, smoking, and distal arterial runoff. The goal of this study was to determine whether patients with critical ischemia undergoing arterial reconstruction in which ischemic lesions appeared spontaneously, compared to those in which the ischemic lesion appeared following an external aggression to the limb present different patterns of evolution. METHODS: From February 2002 to January 2004, 100 patients undergoing infra-inguinal arterial reconstruction were followed. They were divided into 2 groups: 1 the spontaneous group (n = 52, comprising individuals presenting with ischemic lesions of spontaneous origin and 2 the external aggression to the limb group (n = 48, comprising individuals for which an external causal mechanism for the appearance of the ischemic lesion was identified. The variables analyzed were limb salvage and graft functioning rates. RESULTS: Patients with spontaneous lesions had rates of limb salvage and graft functioning significantly lower than those for patients with lesions that were secondary to external aggression (42.3% versus 87.5%, respectively for both outcomes; P OBJETIVO: Diversos fatores preditivos de evolução de enxertos arteriais em pacientes com isquemia grave foram definidos em estudos clínicos como diabetes mellitus, insuficiência renal, fumo e vasão distal. O objetivo deste estudo foi verificar se pacientes com isquemia grave submetidos a revascularização nos quais as lesões apareceram espontaneamente apresentam evolução diferente daquela em que as lesões apareceram após uma agressão externa ao membro. MÉTODOS: De fevereiro de 2002 a janeiro de 2004, 100 pacientes submetidos a revascularizações infra-inguinais foram seguidos. Eles foram divididos em 2 grupos: 1 Grupo com lesão espont

  13. El videojuego como material educativo: La Odisea

    Directory of Open Access Journals (Sweden)

    Belén Mainer Blanco

    2012-04-01

    Full Text Available La investigación se basa en la función educativa que pueden cumplir los videojuegos, un campo que consideramos inexplorado por tres motivos principalmente: su reciente incorporación, su impopularidad educativa (el rechazo el videojuego como herramienta de aprendizaje y considerado, por el contrario, como una distracción, y la incompleta incorporación de las nuevas tecnologías de información y comunicación (TIC en el ámbito familiar y educativo. En una segunda parte, se ha realizado una aplicación práctica tomando como referencia la gran obra universal “La Odisea”, cuya intención es mostrar la utilidad del videojuego como complemento educativo.

  14. El Derecho como argumentación

    Directory of Open Access Journals (Sweden)

    Atienza, Manuel

    1999-11-01

    Full Text Available Not available

    Frente a las concepciones del Derecho como norma, como hecho o como valor (que caracterizan, respectivamente, al norrnativismo, al realismo jurídico y al iusnaturalismo, se propone aquí un cuarto enfoque que consiste en ver el Derecho como argumentación (y que cohra especial relevancia en las sociedades democráticas. Sin embargo, no hay una única forma de entender la argumentación jurídica. Aunque conectadas entre sí, en el trabajo se distinguen tres concepciones: la formal, la material y la pragmática o dialéctica; muchas cuestiones que se plantean en el ámbito de la teoría de la argumentación jurídica pueden resolverse -o aclararse- teniendo en cuenta esa triple perspectiva.

  15. La sangre como espectáculo.

    Directory of Open Access Journals (Sweden)

    Rubén Darío Buitrón

    2015-01-01

    Full Text Available El autor asevera que cuando la información es concebida y tratada como una mercancía y no como un bien social, la avidez por el lucro la degenera en productos abyectos donde la sangre es espectáculo que sirve para exacerbar el morbo social, incrementar las ventas y los ingresos publicitarios. Señala que lamentablemente en el Ecuador este tipo de periodismo es una plaga muy bien vendida.

  16. Diagnosing cerebral visual impairment in children with good visual acuity.

    Science.gov (United States)

    van Genderen, Maria; Dekker, Marjoke; Pilon, Florine; Bals, Irmgard

    2012-06-01

    To identify elements that could facilitate the diagnosis of cerebral visual impairment (CVI) in children with good visual acuity in the general ophthalmic clinic. We retrospectively investigated the clinical characteristics of 30 children with good visual acuity and CVI and compared them with those of 23 children who were referred with a suspicion of CVI, but proved to have a different diagnosis. Clinical characteristics included medical history, MRI findings, visual acuity, crowding ratio (CR), visual field assessment, and the results of ophthalmologic and orthoptic examination. We also evaluated the additional value of a short CVI questionnaire. Eighty-three percent of the children with an abnormal medical history (mainly prematurity and perinatal hypoxia) had CVI, in contrast with none of the children with a normal medical history. Cerebral palsy, visual field defects, and partial optic atrophy only occurred in the CVI group. 41% of the children with CVI had a CR ≥2.0, which may be related to dorsal stream dysfunction. All children with CVI, but also 91% of the children without CVI gave ≥3 affirmative answers on the CVI questionnaire. An abnormal pre- or perinatal medical history is the most important risk factor for CVI in children, and therefore in deciding which children should be referred for further multidisciplinary assessment. Additional symptoms of cerebral damage, i.e., cerebral palsy, visual field defects, partial optic atrophy, and a CR ≥2 may support the diagnosis. CVI questionnaires should not be used for screening purposes as they yield too many false positives.

  17. Evaluation of baseline structural factors for predicting glaucomatous visual-field progression using optical coherence tomography, scanning laser polarimetry and confocal scanning laser ophthalmoscopy.

    Science.gov (United States)

    Sehi, M; Bhardwaj, N; Chung, Y S; Greenfield, D S

    2012-12-01

    The objective of this study is to assess whether baseline optic nerve head (ONH) topography and retinal nerve fiber layer thickness (RNFLT) are predictive of glaucomatous visual-field progression in glaucoma suspect (GS) and glaucomatous eyes, and to calculate the level of risk associated with each of these parameters. Participants with ≥28 months of follow-up were recruited from the longitudinal Advanced Imaging for Glaucoma Study. All eyes underwent standard automated perimetry (SAP), confocal scanning laser ophthalmoscopy (CSLO), time-domain optical coherence tomography (TDOCT), and scanning laser polarimetry using enhanced corneal compensation (SLPECC) every 6 months. Visual-field progression was assessed using pointwise linear-regression analysis of SAP sensitivity values (progressor) and defined as significant sensitivity loss of >1 dB/year at ≥2 adjacent test locations in the same hemifield at P<0.01. Cox proportional hazard ratios (HR) were calculated to determine the predictive ability of baseline ONH and RNFL parameters for SAP progression using univariate and multivariate models. Seventy-three eyes of 73 patients (43 GS and 30 glaucoma, mean age 63.2±9.5 years) were enrolled (mean follow-up 51.5±11.3 months). Four of 43 GS (9.3%) and 6 of 30 (20%) glaucomatous eyes demonstrated progression. Mean time to progression was 50.8±11.4 months. Using multivariate models, abnormal CSLO temporal-inferior Moorfields classification (HR=3.76, 95% confidence interval (CI): 1.02-6.80, P=0.04), SLPECC inferior RNFLT (per -1 μm, HR=1.38, 95% CI: 1.02-2.2, P=0.02), and TDOCT inferior RNFLT (per -1 μm, HR=1.11, 95% CI: 1.04-1.2, P=0.001) had significant HRs for SAP progression. Abnormal baseline ONH topography and reduced inferior RNFL are predictive of SAP progression in GS and glaucomatous eyes.

  18. La participacion ciudadana como fuente de democracia

    Directory of Open Access Journals (Sweden)

    Orlando José Cadrazco Salcedo

    2009-01-01

    Full Text Available Resumen:La Participación ciudadana es un órgano de deliberación donde confluyen todos los factores reales de poder paradecidir sobre aspectos como el plan de desarrollo, plan de ordenamiento territorial y presupuesto (atendiendo alente territorial donde se establezca , en sí este modelo es un verdadero desarrollo del concepto de democraciaparticipativa que consagra nuestra Carta Política, es un ejemplo de que la soberanía popular consagrada en elartículo tercero de la Carta va más allá del formalismo legalista y los intrincados vericuetos de la ley 134 de 1994que nunca han permitido que se ponga en marcha un verdadero desarrollo de la democracia participativa, y quepor fin salgamos de ese esquema retrogrado de la representatividad y por supuesto que a través de este modelolleguemos a un verdadero contrato social que provenga de las bases.Palabras claves:Democracia Participativa. Carta Politica, Sociedad, Participaciòn Ciudadana, Modelo Democrático, ConstituciónPolítica.Abstract:Citizen participation is a deliberative body where all the real power to decide on aspects such as the developmentplan, development plan and budget (according to the local authority where it is established, this model is itself atrue development the concept of participatory democracy enshrined in our Constitution, is an example of popularsovereignty enshrined in the third article of the Charter goes beyond the legal formalities and vericuetos the intricaciesof the law 134 of 1994 which have never been allowed to put ongoing development of a true participatorydemocracy, and they finally get out of this backward scheme of representation and of course that through this modelto create a real social contract comes from the grassroots.Keywords:Participatory Democracy. Charter Politics, Society, Politics, democratic, Constitution.

  19. LA EXPANSIÓN TERRITORIAL COMO FACTOR MOTIVADOR DE LA REESTRUCTURACIÓN DEL SISTEMA FINANCIERO ESPAÑOL: EL CASO DE LAS CAJAS DE AHORROS Y LAS COOPERATIVAS DE CRÉDITO / THE TERRITORIAL EXPANSION AS A MOTIVATING FACTOR OF THE RESTRUCTURING OF THE SPANISH FINANCIAL SYSTEM: THE CASE OF SAVING BANKS AND CREDIT COOPERATIVES

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    Milagros GUTIÉRREZ FERNÁNDEZ

    2012-01-01

    Full Text Available La actual crisis financiera internacional está actuando como catalizador de un profundo proceso de cambio en el sector bancario español que está afectando también a las entidades de crédito de la Economía Social: cajas de ahorros y cooperativas de crédito. Su modelo de banca “minorista”, centrada en la cercanía al cliente, se ha visto acompañado en los últimos años de un fuerte proceso de expansión geográfica que ha supuesto un sobredimensionamiento de su red de sucursales. Sin embargo, como consecuencia de las actuales circunstancias de la economía española en general, y del sistema bancario en particular, dicha estrategia de desarrollo interno no parece sostenible, siendo necesario que se produzca un redimensionamiento del sector, para ver recuperada la confianza en el sistema y para que éste vuelva a ser considerado como uno de los más solventes del mundo. Bajo este enfoque, el objetivo de este trabajo es analizar las distintas estrategias de expansión territorial desarrolladas por dichas entidades con el objetivo de plasmar su situación actual y comprender por qué es necesaria la reestructuración del sector. Para ello se ha empleado tanto el análisis descriptivo como el econométrico, utilizando en todo momento los datos que presentan la Confederación Española de Cajas de Ahorros (CECA y la Unión Nacional de Cooperativas de Crédito (UNACC en sus anuarios estadísticos. / The current financial international crisis is acting as catalyst of a deep process of change in the Spanish banking sector which is affecting also the credit institutions of the Social Economy: saving banks and credit cooperatives. These entities share a model of "retail" banking, centered on the nearness to the client, that has been accompanied in the last years of a strong process of geographical expansion which has supposed an oversizing of its network of branches. Nevertheless, as a consequence of the current circumstances of the Spanish

  20. Visual hallucinatory syndromes and the anatomy of the visual brain.

    Science.gov (United States)

    Santhouse, A M; Howard, R J; ffytche, D H

    2000-10-01

    We have set out to identify phenomenological correlates of cerebral functional architecture within Charles Bonnet syndrome (CBS) hallucinations by looking for associations between specific hallucination categories. Thirty-four CBS patients were examined with a structured interview/questionnaire to establish the presence of 28 different pathological visual experiences. Associations between categories of pathological experience were investigated by an exploratory factor analysis. Twelve of the pathological experiences partitioned into three segregated syndromic clusters. The first cluster consisted of hallucinations of extended landscape scenes and small figures in costumes with hats; the second, hallucinations of grotesque, disembodied and distorted faces with prominent eyes and teeth; and the third, visual perseveration and delayed palinopsia. The three visual psycho-syndromes mirror the segregation of hierarchical visual pathways into streams and suggest a novel theoretical framework for future research into the pathophysiology of neuropsychiatric syndromes.

  1. A Data Mining Project to Identify Cardiovascular Related Factors That May Contribute to Changes in Visual Acuity Within the US Astronaut Corps

    Science.gov (United States)

    Westby, Christian M.; Stein, Sydney P.; Platts, Steven H.

    2011-01-01

    Many of the cardiovascular-related adaptations that occur in the microgravity environment are due, in part, to a well-characterized cephalad-fluid shift that is evidenced by facial edema and decreased lower limb circumference. It is believed that most of these alterations occur as a compensatory response necessary to maintain a "normal" blood pressure and cardiac output while in space. However, data from both flight and analog research suggest that in some instances these microgravity-induced alterations may contribute to cardiovascular-related pathologies. Most concerning is the potential relation between the vision disturbances experienced by some long duration crewmembers and changes in cerebral blood flow and intra-ocular pressure. The purpose of this project was to identify cardiovascular measures that may potentially distinguish individuals at risk for visual disturbances after long duration space flight. Toward this goal, we constructed a dataset from Medical Operation tilt/stand test evaluations pre- (days L-15-L-5) and immediate post-flight (day R+0) on 20 (3 females, 17 males). We restricted our evaluation to only crewmembers who participated in both shuttle and space station missions. Data analysis was performed using both descriptive and analytical methods (Stata 11.2, College Station, TX) and are presented as means +/- 95% CI. Crewmembers averaged 5207 (3447 - 8934) flight hours across both long (MIR-23 through Expedition16) and short (STS-27 through STS-101) duration missions between 1988 and 2008. The mean age of the crew at the time of their most recent shuttle flight was 41 (34-44) compared to 47 (40-54) years during their time on station. In order to focus our analysis (we did not have codes to separate out subjects by symptomotology) , we performed a visual inspection of each cardiovascular measures captured during testing and plotted them against stand time, pre- to post-flight, and between mission duration. It was found that pulse pressure most

  2. Valoración del uso de retinografía como método de diagnóstico precoz de glaucoma crónico en atención primaria: validación para el cribado en población con factores de riesgo para glaucoma de ángulo abierto

    Directory of Open Access Journals (Sweden)

    Soraya Sánchez González

    2017-08-01

    Conclusiones: La retinografía no presenta un comportamiento adecuado como herramienta de diagnóstico precoz de GAA desde atención primaria según el modelo planteado en nuestro estudio. Serían necesarios ajustes que subsanasen su baja sensibilidad, como usar otras pruebas combinadas y mejorar el entrenamiento de los MAP.

  3. Visual literacy in HCI

    NARCIS (Netherlands)

    Overton, K.; Sosa-Tzec, O.; Smith, N.; Blevis, E.; Odom, W.; Hauser, S.; Wakkary, R.L.

    2016-01-01

    The goal of this workshop is to develop ideas about and expand a research agenda for visual literacy in HCI. By visual literacy, we mean the competency (i) to understand visual materials, (ii) to create visuals materials, and (iii) to think visually [2]. There are three primary motivations for this

  4. Octadecanoides como reguladores de la defensa de las plantas

    Directory of Open Access Journals (Sweden)

    G. Camarena Gutiérrez

    2002-01-01

    Full Text Available En años recientes muchas moléculas lipoides muy potentes han sido identificadas, comprenden compuestos lipofílicos no derivados de lípidos como los brasinoesteroides triterpenoides, otros que parcialmente son de origen lipídico como los lipo-oligosacáridos, factores de nodulación de especies de Rhizobium que pueden tener parientes endógenos en las plantas, y un tercer grupo, los octadecanoides, cuyas estructuras son derivadas de ácidos grasos vegetales. Las señales mediadas por lípidos son un aspecto importante de la vida de las plantas y un área de investigación en rápido crecimiento.

  5. Las directrices del costo como fuentes de ventajas competitivas.

    Directory of Open Access Journals (Sweden)

    José Reinel Bermeo Muñoz

    2005-01-01

    Full Text Available Este trabajo pretende describir con el mayor detalle y actualización posible el comportamiento de los costos dentro de una actividad de valor con base en los diez factores estructurales que influyen en el costo, denominados por Michael E. Porter (1985, como guías o directrices del costo en su libro La Ventaja Competitiva. Estas directrices actúan como fuentes directas para establecer y sostener el posicionamiento estratégico asumido por la empresa, para determinar la posición relativa de costos y para explicar, en gran parte, la generación temporal de valor en las diversas actividades desarrolladas a lo largo de la cadena de valor. Por esto constituyen uno de los fundamentos para explicar las diferencias de resultados entre empresas pertenecientes al mismo sector de actividad económica y fuentes de ventajas competitivas sostenibles.

  6. Como Lo Hago Yo: Mielomeningocele En Bolivia

    Science.gov (United States)

    Dabdoub, Carlos F.; Dabdoub, Carlos B.; Villavicencio, Ramiro; Quevedo, Germán

    2014-01-01

    ón: En esta serie, el diagnóstico prenatal del MMC fue ocasional y la derivación al HUJ de los recién nacidos con esta malformación fue generalmente tardía. No hubo predominio de género y la mayoría de los casos presentaron sus lesiones en la región lumbar y lumbosacra. La mortalidad general y postoperatoria fue similar a la reportada en la literatura. Pocos enfermos realizaron controles posteriores al alta hospitalaria. Igual que otros países de Sudamérica, las falencias en el sistema público de salud y el nivel sociocultural, son factores determinantes para un mal pronóstico en estos niños. Por sus múltiples complicaciones, el MMC requiere de una especial atención gubernamental, sobre todo de carácter preventivo mediante el uso de ácido fólico en mujeres fértiles, como también de un equipo profesional multidisciplinario, a fin de realizar un tratamiento adecuado y oportuno. Al mismo tiempo, trabajos multicéntricos en hospitales de América Latina, ayudarán al mejor manejo de estos pacientes. PMID:24791220

  7. Body image,