446 research outputs found

    Use of Internet for General and Dental Health along Acculturation Features in a Sample of Mexican Americans

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    The objectives of this study were to explore self-reported Internet and electronic platforms used to search for and store medical and dental information among people of Mexican origin. A sample of adults self-identified as European American (250) and as Mexican American (255), residing in Central Indiana, answered a one-time survey that included technology use questions and measured acculturation via the Psychological-Behavioral Acculturation Scale. Overall use of information technologies was estimated through an Information and Communication Technology score. Overall, participants with higher scores searched online for general and oral health information at higher rates than those with lower scores. Younger Mexican Americans and those with higher use scores were more likely to search online for general health information, as were those more psychologically and behaviorally acculturated. Interestingly, Mexican Americans were more likely than European Americans to search online for dental health information. All participants demonstrated high interest in accessing and storing their own health information especially on paper format; storage in other places, such as personal computers, smartphones, or USB flash drives, was less endorsed. Most participants would allow spouses access to their health records; however, there were significant differences between both population groups regarding access given to physicians, dentists and other family members, with Mexican Americans reporting more restrictions. Our findings provide initial information on differential use pattern of electronic health resources among Mexican Americans and suggest that new information technologies reach population groups traditionally underserved; such features may help address disparities in general and dental health

    Sugestión del recuerdo en busca de los sentidos : una propuesta didáctica para el fortalecimiento de la comprensión lectora desde el texto poético

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    La presente propuesta investigativa, tiene como objetivo, diseñar una secuencia didáctica apoyada en la lectura del texto literario poético que permite fortalecer la comprensión lectora en estudiantes de grado 9° EBS, en esa medida, se pretende que los estudiantes tengan una nueva mirada sobre el texto poético y éste pase a ser visto de forma diferente en las aulas de clase y los aprendices encuentren su aplicación e importancia en los contextos sociales en los cuales se desarrolla su vida. Con la implementación de esta secuencia didáctica, se busca que el texto poético, sea tenido en cuanta en las contenidos curriculares de las áreas de conocimiento, especialmente en el área de español y ésta tenga un papel protagónico y no sea implementada solo en los actos culturales que realizan en las instituciones educativas para fechas de celebración, sino que sea un vehículo que permita despertar la sensibilidad en el estudiante y adquiera las herramientas necesarias para comprender, que la poesía hace parte de su realidad y la puede encontrar en las canciones que escucha a diario, en las cartas que escribe y en las muestras de afecto que dirige hacía un ser especial. Con lo anterior, se debe tener en cuenta que la presente propuesta investigativa está apoyado en los documentos teóricos aportados por el MEN, que corresponden a los Lineamientos Curriculares de Lengua Castellana, Estándares Básicos de Aprendizaje, Los Derechos Básicos de Aprendizaje entre otros

    Out-Of-Pocket Expenditures on Dental Care for Schoolchildren Aged 6 to 12 Years: A Cross-Sectional Estimate in a Less-Developed Country Setting

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    Aim: The objective of this study was to estimate the Out-Of-Pocket Expenditures (OOPEs) incurred by households on dental care, as well as to analyze the sociodemographic, economic, and oral health factors associated with such expenditures. Method: A cross-sectional study was conducted among 763 schoolchildren in Mexico. A questionnaire was distributed to parents to determine the variables related to OOPEs on dental care. The amounts were updated in 2017 in Mexican pesos and later converted to 2017 international dollars (purchasing power parities-PPP US ).Multivariatemodelswerecreated:alinearregressionmodel(whichmodeledtheamountofOOPEs),andalogisticregressionmodel(whichmodeledthelikelihoodofincurringOOPEs).Results:TheOOPEsondentalcareforthe763schoolchildrenwerePPPUS). Multivariate models were created: a linear regression model (which modeled the amount of OOPEs), and a logistic regression model (which modeled the likelihood of incurring OOPEs). Results: The OOPEs on dental care for the 763 schoolchildren were PPP US 53,578, averaging a PPP of US 70.2±123.7perchild.DisbursementsfortreatmentweretheprincipalitemwithintheOOPEs.ThefactorsassociatedwithOOPEswerethechildsage,numberofdentalvisits,previousdentalpain,mainreasonfordentalvisit,educationallevelofmother,typeofhealthinsurance,householdcarownership,andsocioeconomicposition.Conclusions:TheaveragecostofdentalcarewasPPPUS70.2 ± 123.7 per child. Disbursements for treatment were the principal item within the OOPEs. The factors associated with OOPEs were the child's age, number of dental visits, previous dental pain, main reason for dental visit, educational level of mother, type of health insurance, household car ownership, and socioeconomic position. Conclusions: The average cost of dental care was PPP US 70.2 ± 123.7. Our study shows that households with higher school-aged children exhibiting the highest report of dental morbidity-as well as those without insurance-face the highest OOPEs. An array of variables were associated with higher expenditures. In general, higher-income households spent more on dental care. However, the present study did not estimate unmet needs across the socioeconomic gradient, and thus, future research is needed to fully ascertain disease burden

    Habilidades directivas y el desempeño docente en los centros técnicos productivos de la UGEL Nº 05 San Juan de Lurigancho 2016

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    Para las variables: V1 habilidades directivas, V2 desempeño docente, el estudio se abordó desde el enfoque cuantitativo ya que se centra en una investigación social. Según Hernández, Fernández y Batista (2010, p. 4) dijeron: “Enfoque cuantitativo usa la recolección de datos para probar hipótesis, con base en la medición numérica y el análisis estadístico, para establecer patrones de comportamiento y probar teorías”. Tal enfoque parte de un paradigma positivista cuyo objetivo es explicar y describir casualmente, así como generalizar, extrapolar, y universalizar, siendo el objeto de esa investigación hechos objetivos existentes sometidos a leyes y patrones generales. Se ha formulado la hipótesis general: Existe relación significativa entre las habilidades directivas y el desempeño docente en los centros técnicos productivos de la UGEL Nº 05 San Juan de Lurigancho. Metodológicamente se enmarcó en el tipo básico, nivel correlacional con un diseño no experimental transversal, el método es hipotético- deductivo, porque se observó el problema, se formuló hipótesis y se realizó la prueba oportuna. La población general fue 138 docentes de los centros técnicos productivos de la UGEL Nº 05 San Juan de Lurigancho, y se tomó una muestra de 107 docentes. En relación a la instrumentalización, se han formulado dos instrumentos de recolección de datos y ambos han pasado por los filtros correspondientes, cada uno de ellos con 20 ítems y con cinco alternativas de respuestas. Los resultados de la investigación se han realizado mediante el análisis descriptivo de las variables y el análisis inferencial para conocer el nivel de correlación mediante la prueba de Rho Spearman, contestando de esta manera al problema, verificando el cumplimiento de los objetivos y rechazando la hipótesis nula. Se llegó a la conclusión que existe una correlación significativa de 0,847** puntos entre las variables habilidades directivas y desempeño docente

    Focalización y caracterización de la transmisión de dengue en áreas prioritarias del departamento del Vichada Colombia

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    La presente investigación desarrolló un análisis de la situación epidemiológica del dengue en el departamento del Vichada durante los últimos siete años (2007-2013), utilizando como fuente de información el sistema de vigilancia en salud pública nacional (SIVIGILA); con el objetivo de determinar las áreas prioritarias de transmisión a nivel departamental y municipal para el desarrollo de un estudio entomológico enfocado a establecer los índices de infestación y de productividad de Stegomyia (Stegomyia) aegypti (Linnaeus, 1762), realizando la caracterización de viviendas y muestreos de las formas inmaduras del vector aplicando el modelo de barrido. Además se analizaron los factores climáticos como temperatura, humedad y precipitación y se relacionaron con la presencia de casos en el área de estudio. El municipio de Puerto Carreño presentó la mayor frecuencia de casos de dengue (60%), es un municipio con crecimiento urbanístico poco planificado, con niveles bajos de saneamiento básico, con un servicio de agua no continuo por lo cual se requiere el almacenamiento del liquido. Los barrios: Mateo, Simón Bolívar y Primavera poseen la mayor frecuencia de la enfermedad (30%); estos asentamientos urbanos conservan un alto porcentaje de la población municipal. No se evidenciaron diferencias significativas en la proporción de casos por genero (P0,05) pero si por edad (P0,05), las personas jóvenes entre los 10 a los 29 años de edad han sido las más afectadas por dengue. Los índices entomológicos no mostraron una variación estadísticamente significativa entre las épocas climáticas (P0,05); y no se evidenció una relación entre los casos de dengue y los valores de los índices entomológicos hallados. Los tanques bajos representaron el criadero con mayor peso porcentual y con mayor productividad, lo que los coloca como el criadero foco en las localidades prioritarias del municipio de Puerto Carreño. La productividad de St. (Stg.) aegypti demostró que Puerto Carreño presenta áreas con producción permanente del vector, durante todo el año. El mayor porcentaje de casos de dengue se ha presentado durante el periodo de sequía y transición sequia a lluvia, sin embargo, no se encontró una relación estadísticamente significativa entre los casos dengue y los parámetros ambientales analizados.Abstract. This research made an analysis of the epidemiological situation of dengue in the department of Vichada during the last seven years (2007-2013), using as an information source the national surveillance on public health system (SIVIGILA); with the objective to identify priority areas of transmission at the departmental and municipal level for the development of an entomological study focused on establishing Stegomyia (Stegomyia) aegypti (Linnaeus, 1762) infestation indices and its productivity, making housing characterization and sampling the vector immature forms applying a sweeping method. Besides climatic factors such as temperature, humidity and precipitation were analyzed and related to the occurrence in the study area. The municipality of Puerto Carreño had the highest frequency of dengue cases ( 60%), It is a town with poorly planned urban growth, with low levels of basic sanitation, with no continuous water service whereby the liquid storage is required. Neighborhoods: Mateo, Simon Bolivar and Primavera presented the highest prevalence of the disease (30%); these urban settlements conserve a high percentage of the municipal population. There were not significant differences in the proportion of cases by gender (P0.05), but by age (P0.05), nor a relationship between dengue cases and the values found for the entomological indices. Tanks were the most representative breeding site with the highest percentage weight and increased productivity, placing them as the focus on priority areas of the municipality of Puerto Carreño. St. (Stg.) aegypti productivity showed that Puerto Carreño has permanent vector production areas all the year. The highest percentage of dengue cases has been presented during the drought and drought to rain transition, however, no statistically significant relationship between dengue cases and environmental parameters analyzed were found.Otr

    Aspects of quantum information in finite density field theory

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    We study different aspects of quantum field theory at finite density using methods from quantum information theory. For simplicity we focus on massive Dirac fermions with nonzero chemical potential, and work in 1 + 1 space-time dimensions. Using the entanglement entropy on an interval, we construct an entropic c-function that is finite. Unlike what happens in Lorentz-invariant theories, this c-function exhibits a strong violation of monotonicity; it also encodes the creation of long-range entanglement from the Fermi surface. Motivated by previous works on lattice models, we next calculate numerically the Renyi entropies and find Friedel-type oscillations; these are understood in terms of a defect operator product expansion. Furthermore, we consider the mutual information as a measure of correlation functions between different regions. Using a long-distance expansion previously developed by Cardy, we argue that the mutual information detects Fermi surface correlations already at leading order in the expansion. We also analyze the relative entropy and its Renyi generalizations in order to distinguish states with different charge and/or mass. In particular, we show that states in different superselection sectors give rise to a super-extensive behavior in the relative entropy. Finally, we discuss possible extensions to interacting theories, and argue for the relevance of some of these measures for probing non-Fermi liquids.Fil: Daguerre, Lucas. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Medina, Raimel. Austria Institute of Technology; AustriaFil: Solís Delgadillo, Juan Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Torroba, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentin

    Ensamble de hormigas (Hymenoptera: Formicidae) en fragmentos de bosque seco en el complejo carbonífero el Cerrejón (La Guajira, Colombia)

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    An ant community was studied in nine areas in the complex mining of Cerrejón Ltd. in the Cerrejón Valley (Department of Guajira-Colombia). In each site, 10 sampling stations were installed over four time periods, covering the different climatic events of the region. Ants were collected using pitfall traps, mini-Winklerbags, manual capture and Malaise traps. For the comparisons between areas, we applied non parametric estimators of richness, diversity indices and similarity coefficients. 3.935 individuals were collected in 2.652 capture events, 71 species belonging to eight subfamilies, 19 tribes and 37 genera were identified. The estimators of richness produced estimates of 73 species (ICE), 73 (Chao 1) and 77 (Jacknife 1) respectively, for the nine areas. No significant differences between the diversity values were detected. The Bray-Curtis similarity coefficient showed that the sites are not similar in relation to their richness and abundance. Each area contributed species to the total diversity of Formicidae, which suggest that they should be conserved to maintain the local and regional biodiversity.Se estudió la comunidad de hormigas en nueve áreas del Valle del Cerrejón (departamento de La Guajira- Colombia), dentro del complejo minero del Cerrejón Ltda. En cada área se instalaron 10 estaciones de muestreo en cuatro épocas, cubriendo los diferentes eventos climáticos de la región. Se recolectaron hormigas usando trampas de caída, sacos mini-Winkler, captura manual y trampas Malaise. Para las comparaciones entre áreas se aplicaron estimadores no paramétricos de riqueza, índices de diversidad y coeficientes de similitud. Se recolectaron 3.935 individuos en 2.652 eventos de captura, se identificaron 71 especies de ocho subfamilias, 19 tribus y 37 géneros. La riqueza estimada fue de 73 especies (ICE), 73 (Chao1) y 77 (Jacknife 1). No se encontró una diferencia significativa entre los valores de diversidad. El coeficiente de similitud de Bray-Curtis registró que los sitios no son similares en relación con su riqueza y abundancia. Cada una de las áreas aportó especies a la diversidad total de Formicidae, lo cual sugiere que deben ser conservadas para mantener la biodiversidad local y regional

    Análisis exploratorio de la percepción en niños preescolares sobre la interacción recíproca con sus madres

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    Objective. Although conceptual advances and empirical evidence with school-age children and adolescents suggest that children’s perceptions are relevant in understanding the reciprocal reactions between parents and children, the level of knowledge in the case of pre - school children is almost non - existent. The main objective of this study was to explore the perception of preschool children of the relationships with their mothers, and to determine whether scores were related with differences on parenting competence, as well as with other parenting factors. Method. Data were collected from 50 mothers who responded to several questionnaires and their children ( n = 50) , who answered a pictorial test of perception of the relationships with their mothers. Results. Results indicated that scores from the questionnaires were consistent with perceptions of children regarding appropriate or inappropriate interactions: for mothers on parental competence, stress, and subjective well - being, and for children on psychosocial adaptation, stress, and behavior problems; as well as with scores relating to the temperament of both. Conclusion. The results and their implications are discussed in terms of establishing coherence between conceptual advances and the empirical evidence on reciprocal interactions.Objetivo. Aunque los avances conceptuales y las evidencias empíricas con niños en edad escolar y adolescentes sugieren que las percepciones de los niños son relevantes para comprender las interacciones recíprocas padres - hijos, el estado de conocimiento es prácticamente nulo en niños preescolares. El principal objetivo de este estudio buscó explorar la percepción de niños preescolares sobre las relaciones con sus madres y analizar si los puntajes diferenciales de la percepción de los niños indican diferencias en la competencia parental, así como en otros factores que tienen relación con su crianza. Método . La muestra estuvo conformada por 50 mamás que contestaron los autorreportes y sus niños ( n = 50) que contestaron una prueba pictórica de percepción de las relaciones con sus madres. Resultados . Los resultados indicaron que las percepciones de los niños sobre las interacciones adecuadas o inadecuadas fueron congruentes con los puntajes de los cuestionarios, en particular, con la competencia parental, el estrés y el bienestar subjetivo maternos y con la adaptación psicosocial, el estrés y los problemas de comportamiento de los niños, así como con el temperamento de ambos. Conclusión . Se discuten los resultados y sus implicaciones para establecer congruencia entre el avance conceptual y las evidencias empíricas sobre las interacciones recíprocas.Escopo . Ainda que os avanços conceituais e as evidencias empíricas com crianças em idade escolar e adolescentes sugerem que as percepções das crianças são relevantes para compreender as interações recíprocas pais-filhos, o estado de conhecimento é praticamente nulo com crianças pré - escolares. O principal escopo de este estudo foi o de explorar a percepção de crianças pré - escolares sobre as relações com suas mães e analisar sim pontuações diferentes da percepção das crianças indicam diferencias na competência parental, assim como em outros fatores que tem relação com a educação. Metodologia . A mostra foi formada com 50 mães que contestaram os auto - reportes e suas crianças ( n = 50) que contestaram uma prova pictórica de percepção das relações com suas mães. Resultados . Os resultados indicaram que as percepções das crianças sobre as interações adequadas ou inadequadas foram congruentes com as pontuações dos questionários; em particular, com a competência parental, o stress e o bem-estar subjetivo maternos e com a adaptação psicossocial, o stress e os problemas de comportamento das crianças; assim como o temperamento de ambos. Conclusão. Foram discutidos os resultados e suas implicações para estabelecer congruência entre o avanço conceitual e as evidencias empíricas sobre interações recíprocas

    Confirmation of symmetrical distributions of clinical attachment loss and tooth loss in a homogeneous Mexican adult male population

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    Background/purpose To ascertain whether or not clinical attachment loss and tooth loss are present with similar severity and prevalence across the two sides of the mouth in a homogeneous sample of urban male adults. Materials and methods A cross-sectional study was carried out on 161 policemen (a largely homogeneous group in terms of ethnic background, socioeconomic status, sex, occupation, and medical/dental insurance) in Campeche, Mexico. Periodontal examinations were undertaken using the Florida Probe System in a dental chair by one trained and standardized examiner (kappa ≥ 0.60) to determine clinical attachment loss and tooth loss. We examined six sites in all teeth present in the mouth (a maximum of 168 sites, no third molars). Because of correlated data between observations, McNemar (for tooth loss) and Wilcoxon (for attachment loss) signed-rank tests were used to compare right and left sites within the same patient. Results The mean age was 38.4 ± 11.0 years. The mean number of teeth present was 24.4 ± 4.6; the mean number of periodontal sites/person was 146.7 ± 27.8. All P values were ≥ 0.05 (except for attachment loss in the upper first premolars), suggesting that there were no statistically significant differences between the right and left sides for the frequency of presentation of these two conditions. Conclusion Tooth loss and attachment loss measurements largely resemble each other on both sides of the mouth

    Determinación de nitritos y nitratos en hot dogs de consumo directo por estudiantes del 5º y 6º grado de educación primaria del distrito de Villa el Salvador

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    El presente es un estudio transversal y descriptivo realizado en 23 instituciones educativas estatales del distrito de Villa El Salvador, con el objetivo de determinar las concentraciones de nitritos y nitratos presentes en los hot dogs de consumo directo que se expenden en dichas instituciones educativas, debido a sus reconocidos efectos tóxicos sobre la salud, como son la metahemoglobinemia y la formación de nitrosaminas carcinogénicas. Para tal fin, se determinaron las concentraciones de estos aditivos mediante análisis espectrofotométrico en un equipo Spectronic – G Bauch y Lomb, y luego se comparó estos valores con las cantidades establecidas por las normativas nacional (INDECOPI) e internacional (Codex Alimentarius) vigentes. El método analítico se basa en la Norma Técnica Peruana ISO 2918:2006 para el caso de nitritos y en la Norma Técnica Peruana ISO 3091:2005 en el caso de nitratos. Los valores encontrados para nitritos y nitratos en las 23 muestras analizadas varían en un rango de 122 ppm hasta 399 ppm y de 482 ppm hasta 738 ppm, respectivamente y el promedio de las concentraciones para el caso de los nitritos es de 176.96 ppm y para el caso de los nitratos es de 530.31 ppm. Paralelamente, se determinó el porcentaje y frecuencia de consumo de los hot dogs en los alumnos del quinto y sexto grado de primaria de las mismas instituciones educativas seleccionadas, mediante la realización de una encuesta de consumo semanal, la cual nos indica que el 55,4 % de los alumnos consume hot dog en el colegio, mientras que la frecuencia de consumo se da mayormente una vez a la semana principalmente en los kioscos de las instituciones educativas estatales. Por lo tanto se concluye que las concentraciones de nitritos y nitratos presentes en las muestras analizadas de hot dogs de las 23 instituciones educativas estatales del distrito de Villa El Salvador superan los niveles máximos permitidos dados por el Codex Alimentarius e INDECOPI respectivamente y el porcentaje de consumo en estudiantes de 5º y 6º grado de educación primaria es también elevado. -- Palabras Claves: productos cárnicos, nitritos, nitratos, hot dogs, análisis toxicológico.-- This is a cross-sectional and descriptive study conducted in 23 state educational institutions in the district of Villa El Salvador, with the aim of determining concentrations of nitrites and nitrates in hot dogs that are sold for direct consumption in these educational institutions, because of their known toxic effects on health, such as methemoglobinemia and formation of carcinogenic nitrosamines. For this purpose, it was determined the concentrations of these additives in samples of hot dog in the 23 schools through spectrophotometric analysis on a Spectronic - G Bauch and Lomb, and then compared these values with the quantities established by national (INDECOPI) and international (Codex Alimentarius) regulations nowadays. The analytical method is based on the Peruvian Technical Standard ISO 2918:2006 for the case of nitrite and the Peruvian Technical Standard ISO 3091:2005 in the case of nitrate. The values found for nitrites and nitrates in the 23 samples analyzed varied in a range from 122 ppm to 399 ppm and 482 ppm to 738 ppm, respectively, and average concentrations of nitrite in the case is 176.96 ppm and for the case of potassium nitrate is 530.31 ppm. In parallel, we determined the percentage and frequency of consumption of hot dogs in the students of fifth and sixth grade primary educational institutions themselves by conducting a weekly consumer survey, which indicates that 55.4% the students themselves consumed hot dog at school, while the frequency of consumption occurs mostly once a week mainly in the stores of state educational institutions. Therefore concluded that the concentrations of nitrites and nitrates present in samples of hot dogs in the 23 state educational institutions in the district of Villa El Salvador exceeds the maximum permissible levels given by the Codex Alimentarius and INDECOPI respectively and the rate of consumption students in grades 5 and 6th grade of primary education is also high. -- Key Words: meat products, nitrites, nitrates, hot dogs, toxicological analysis.Tesi
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