Factores psicosociales y síntomas de estrés en los trabajadores de una empresa de fabricación de neumáticos, Jalisco, México

El objetivo de este estudio fue abundar en el conocimiento de los estresores sociales y laborales que componen una de las principales causas de riesgos en el trabajo. Se realizó un censo en los 60 trabajadores de una compañía de fabricación de neumáticos. El estudio realizado fue de carácter descriptivo, transversal y analítico. La presencia de factores psicosociales la manifestó el 49.1% de los trabajadores operativos, la prevalencia de síntomas de estrés en un 36.4%. En los resultados de la relación entre los factores psicosociales con los síntomas de estrés y estar enfermo, se observa las dos correspondencias significativas más altas en “Exigencias laborales” y “Papel laboral y desarrollo de la carrera” con estar enfermo, ambas con una p=0.007.The objective of this study was to increase the knowledge of social and labor stressors that make up one of the main causes of occupational hazards. A census was conducted on the 60 workers of a tire manufacturing company. The study was descriptive, transversal and analytical. The presence of psychosocial factors was expressed by 49.1% of operational workers, the prevalence of stress symptoms in 36.4%. In the results of the relationship between psychosocial factors with the symptoms of stress and being sick, the two highest significant correspondences are observed in “Labor requirements” and “Job role and career development” with being sick, both with a p = 0.007

Distributed System for Cognitive Stimulation Over Interactive TV.

Descripción y evaluación de sistema de estimulación cognitiva a través de la TDT orientada a personas con enfermedad de Parkinson, con supervisión por parte de sus terapeutas de forma remota. Abstract: This paper details the full design, implementation, and validation of an e-health service in order to improve the community health care services for patients with cognitive disorders. Specifically, the new service allows Parkinson’s disease patients benefit from the possibility of doing cognitive stimulation therapy (CST) at home by using a familiar device such as a TV set. Its use instead of a PC could be a major advantage for some patients whose lack of familiarity with the use of a PC means that they can do therapy only in the presence of a therapist. For these patients this solution could bring about a great improvement in their autonomy. At the same time, this service provides therapists with the ability to conduct follow-up of therapy sessions via the web,benefiting from greater and easier control of the therapy exercises performed by patients and allowing them to customize new exercises in accordance with the particular needs of each patient. As a result, this kind of CST is considered to be a complement of other therapies oriented to the Parkinson patients. Furthermore, with small changes, the system could be useful for patients with a different cognitive disease such as Alzheimer’s or mild cognitive impairment

Sistema abierto de Televisión Digital Terrestre (TDT) accesible para personas con deficiencia visual

Este artículo detalla el diseño, implementación y validación de un sistema abierto de Televisión Digital accesible para personas con deficiencia visual. La solución facilita que este colectivo pueda acceder a los contenidos de la guía electrónica de programación recibidos a través de la TDT, pudiendo configurar a demanda la interfaz de usuario gráfica (IGU) y la síntesis de voz (TTS). Se presenta el análisis de sistemas existentes, requisitos demandados por este colectivo y tecnologías disponibles, tanto de TDT como de TTS, con el fin de elegir las más apropiadas con criterios de accesibilidad, interoperabilidad y bajo coste. Los resultados obtenidos en la investigación demuestran que el sistema desarrollado es congruente con los criterios del Diseño para Todos según constata la validación realizada. El sistema ofrece combinaciones de colores y fuentes (contraste, tamaño) para diferentes necesidades de la deficiencia visual, y utiliza TTS local y adaptable para las personas con ceguera

Do maternal grandmothers influence breastfeeding duration and infant nutrition? Evidence from Merida, Mexico

Objectives: Breast-feeding is sensitive to somatic, hormonal, behavioral and psychological components of maternal capital. However, through grandmothering, older women may also influence breast-feeding by transferring informational resources to their daughters. We hypothesized that mothers with prolonged instrumental support from their own mother are more likely to have received advice and to have favorable attitudes/practices regarding breastfeeding, compared to those lacking such support, with implications for the grandchild's somatic capital. Methods: We recruited 90 mother-infant dyads (52 with grandmaternal support, 38 without) in Merida, Yucatan, Mexico. All children were first-borns, aged ~2 years. Anthropometry and body composition were assessed. Data on grandmother's breastfeeding advice and maternal breastfeeding duration were obtained by questionnaire. Maternal attitudes to breast-feeding were assessed using the Iowa Infant Feeding Attitude Scale. Results: Women with instrumental support were more likely to have received grandmaternal advice during pregnancy/infancy on exclusive breast-feeding duration (60% vs. 37%, p = 0.033) and the type of first complementary food (81% vs. 47%, p = 0.001). However, women with support had a less favorable attitude to breastfeeding than those without and breastfed their children for less time (median 5 vs. 10.5 months, p = 0.01). No group differences were found in children's length, weight, skinfolds or lean mass z-score. Discussion: Although grandmothers providing instrumental support provided advice regarding breastfeeding, their attitudes may reflect issues beyond nutritional health. Advice of maternal grandmothers did not promote extended breastfeeding, however the differences in breastfeeding attitudes were not associated with the children's nutritional status. Grandmothers should be included in public health interventions promoting breastfeeding

Propriedades psicométricas de uma escala para medir desconexão moral em crianças mexicanas

The moral disengagement has negative effects for psychosocial development in childhood, which makes it necessary to have scales to evaluate it. The present study aimed to analyze the psychometric properties of the Moral Disengagement in Children Situations of Bullying (DMAE, its initials in Spanish) scale. 661 Mexican students participated from 5th grade (51%) and 6th grade (49%), 48% girls (M age = 10.51, SD = .64 years) and 52% boys (M age = 10.59, SD = .68 years). The validity (internal and concurrent), measurement invariance for both sexes and reliability of the scale were analyzed. From the results of the confirmatory factor analysis, it was inferred that the multidimensional measurement model that measures moral justification, diffusion of responsibility and attribution of blame presents a better fit to the data than the one-dimensional one. It was also found that the DMAE presents measurement invariance in both sexes and evidence of concurrent validity. It was concluded that the scale has adequate psychometric properties for the measurement of moral disengagement in Mexican children.La desconexión moral tiene como consecuencia efectos negativos para el desarrollo psicosocial en la niñez, por lo cual se hace necesario contar con escalas para evaluarla. En el presente estudio se analizaron las propiedades psicométricas de la escala Desconexión Moral en Situaciones de Acoso en niños (DMAE). Participaron 661 estudiantes mexicanos de 5.º (51 %) y 6.º grado (49 %), 48 % niñas (M edad = 10.51, DE = .64 años) y 52 % niños (M edad = 10.59, DE = .68 años). Se analizó la validez (estructura interna y concurrente), invarianza de medida para ambos sexos y fiabilidad de la escala. De los resultados del análisis factorial confirmatorio se infirió que el modelo de medición multidimensional que mide la justificación moral, la difusión de la responsabilidad y la atribución de la culpa presenta mejor ajuste a los datos que el unidimensional. Además, se encontró que la DMAE presenta invariancia de medición en ambos sexos y evidencias de validez concurrente. Se concluye que la escala cuenta con propiedades psicométricas adecuadas para la medición de la desconexión moral en niños mexicanos.A desconexão moral tem como consequência efeitos negativos para o desenvolvimento psicossocial na infância, o que torna necessário contar com escalas para avaliá-la. Neste estudo, foram analisadas as propriedades psicométricas da escala Desconexão Moral em Situações de Assédio em Crianças. Participaram 661 estudantes mexicanos do 5º (51 %) e 6º anos (49 %), 48 % meninas (M idade = 10.51, DP = .64 anos) e 52 % meninos (M idade = 10.59, DP = .68 anos). Foi analisada a validade (estrutura interna e concorrente), invariância de medida para ambos os sexos e confiabilidade da escala. Dos resultados da análise fatorial confirmatória, foi inferido que o modelo de medição multidimensional que mede a justificativa moral, a difusão da responsabilidade e a atribuição da culpa apresenta melhor ajuste aos dados do que o unidimensional. Além disso, foi constatado que a escala apresenta invariância de medida em ambos os sexos e evidências de validade concorrente. Concluise que a escala possui propriedades psicométricas adequadas para a medição da desconexão moral em crianças mexicanas

Stress-induced waveguides in Nd:YAG by simultaneous double-beam irradiation with femtosecond pulses

We report on the fabrication of stress-induced waveguides in Nd:YAG (neodymium doped yttrium aluminum garnet, Nd:Y3Al5O12) by simultaneous double-beam irradiation with femtosecond laser pulses. An interferometer was used to generate two femtosecond laser beams that, focused with certain lateral separation inside the crystal, produced two parallel damage tracks with a single scan. The propagation of the mechanical waves simultaneously created in both focal spots produced a highly symmetrical stress field that is clearly revealed in micro-luminescence maps. The optical properties of the double-beam waveguides are studied and compared to those of single-beam irradiation, showing relevant differences. The creation of more symmetric stress patterns and a slight reduction of propagation losses are explained in terms of the fact that simultaneous inscription allows for a drastic reduction in the magnitude of “incubation” effects related to the existence of pre-damaged states.This work was supported by the Ministerio de Economía y Competitividad under Projects FIS2013-44174-P and MAT2013-47395- C4-1-R. The femtosecond laser inscription was carried out in the Spanish Pulsed Laser Center (CLPU) with their Laser Service (High-Repetition-Rate laser system) and their technical assistance, in the framework of the access agreement concerning USAL staff

Impacto del nivel de conocimientos, la fuente de información y la experiencia con la enfermedad sobre las actitudes, creencias, conocimientos y emociones asociadas a la diabetes en un grupo de estudiantes de educación secundaria

El presente estudio se diseñó con el objetivo de conocer los conocimientos, creencias, actitudes y emociones asociados a la diabetes en un grupo de jóvenes sanos con distinto grado de experiencia con la enfermedad. Participaron en el estudio 600 alumnos de 4º de ESO de nueve centros educativos seleccionados al azar durante un curso académico. Los participantes tenían edades comprendidas entre los 15 y 18 años (M= 15.62, dt= 0.70; 50.8% mujeres). Se administró en aplicaciones colectivas el Cuestionario sobre Diabetes (CSD; Vázquez y Cruz, 2004), diseñado para este estudio con el fin de evaluar en adolescentes dichas variables. Los participantes mostraron tener algún conocimiento, aunque no exhaustivo, sobre la enfermedad, y en general unas creencias y actitudes positivas hacia la misma, así como cierta emocionalidad ante el hecho de padecerla. La fuente de información, la experiencia con la enfermedad y el nivel de conocimientos tuvieron una influencia importante sobre las actitudes, creencias y emociones asociadas a esta enfermedad. Estos resultados deben tenerse en cuenta debido al impacto que estas variables pueden ejercer sobre las conductas preventivas y terapéuticas de las personas sanas y los propios pacientes, así como en las conductas de apoyo a éstos.The present study was designed to establish the knowledge, beliefs, attitudes and emotions associated with diabetes in a healthy, young sample with different experience with the illness. Six hundreds of students of 4th grade of secondary obligatory education took part in the study. They were recruited from nine educative centres randomly selected during an academic year. The age of the participants ranged from 15 to 18 years old (M = 15.62, sd = 0.70; 50.8 % women). The Cuestionario sobre Diabetes (CSD; Vázquez and Cruz, 2004) was administered in collective applications. This questionnaire was designed for this study in order to evaluate in adolescents the above mentioned variables. The participants showed some level of knowledge regarding the illness, although it was not exhaustive, and, in general, they showed positive beliefs and attitudes towards the disease, as well as certain emocionality regarding the fact of suffering from it. The source of information, the experience with the illness and the level of knowledge of the participants exerted a relevant influence on the attitudes, beliefs and emotions associated with this illness. These results must be taken into account due to the impact that these variables can exert on the preventive and therapeutic behaviors of healthy persons and patients, as well as on the supporting behaviors aimed to ill people

Servicio ubicuo de estimulación cognitiva orientado a personas con enfermedad de Parkinson

Este trabajo de investigación detalla el diseño y evaluación de un servicio de e-salud cuyo objetivo es mejorar la estimulación y seguimiento de personas con un trastorno cognitivo. Con este fin, se ha desarrollado un protocolo de transferencia de mensajes que facilita la provisión de un servicio telemático para personas afectadas de Parkinson, pudiendo así realizar estimulación cognitiva personalizada, de forma ubicua, mediante un dispositivo fácil de usar como un tablet Android. Asimismo, este servicio permite a los terapeutas adaptar y monitorizar de forma segura la terapia, vía web, beneficiándose así de una mejor calidad en el seguimiento efectivo de cada paciente. El sistema ha sido evaluado satisfactoriamente durante tres meses con 10 pacientes entre 59 y 77 años. La solución resultante es fácilmente integrable con otras terapias complementarias y puede ser adaptada para otros deterioros cognitivos, como el debido a la enfermedad de Alzheimer o el deterioro cognitivo leve

Salicylic acid and Bacillus subtilis as control of early blight (Alternaria solani) in tomato plants (Solanum lycopersicum)

Alternaria solani is the causal agent of early blight disease in tomatoes (Solanum lycopersicum) and every year is responsible for significant economic losses suffered worldwide by the producers of this crop. Since salicylic acid and Bacillus subtilis are resistance-inducing agents in plants, they were evaluated in order to know their effect on the infection caused by early blight in the tomato crop. Plants of 75 days old were transplanted in furrows 8 m wide by 43.2 m long, the exogenous application of treatments were made, growth variables (plant height and stem diameter), yield (total fruits) and damage in tomato plants were evaluated. The results show significant statistical differences between treatments compared with the control (P≤0.000). B. subtilis applied to the root and salicylic acid applied to the foliage, reduced the severity of A. solani in tomato plants, and caused a significant increment in the crop growth and yield. The use of resistance inducers can represent an alternative of sustainable production and efficient control against pathogens, aimed at reducing the use of agrochemicals and production costs.Alternaria solani is the causal agent of early blight disease in tomatoes (Solanum lycopersicum) and every year is responsible for significant economic losses suffered worldwide by the producers of this crop. Since salicylic acid and Bacillus subtilis are resistance-inducing agents in plants, they were evaluated in order to know their effect on the infection caused by early blight in the tomato crop. Plants of 75 days old were transplanted in furrows 8 m wide by 43.2 m long, the exogenous application of treatments were made, growth variables (plant height and stem diameter), yield (total fruits) and damage in tomato plants were evaluated. The results show significant statistical differences between treatments compared with the control (P≤0.000). B. subtilis applied to the root and salicylic acid applied to the foliage, reduced the severity of A. solani in tomato plants, and caused a significant increment in the crop growth and yield. The use of resistance inducers can represent an alternative of sustainable production and efficient control against pathogens, aimed at reducing the use of agrochemicals and production costs

Ácido salicílico y Bacillus subtilis como control del tizón temprano (Alternaria solani) en plantas de tomate (Solanum lycopersicum)

Alternaria solani is the causal agent of early blight disease in tomatoes (Solanum lycopersicum) and every year is responsible for significant economic losses suffered worldwide by the producers of this crop. Since salicylic acid and Bacillus subtilis are resistance-inducing agents in plants, they were evaluated in order to know their effect on the infection caused by early blight in the tomato crop. Plants of 75 days old were transplanted in furrows 8 m wide by 43.2 m long, the exogenous application of treatments were made, growth variables (plant height and stem diameter), yield (total fruits) and damage in tomato plants were evaluated. The results show significant statistical differences between treatments compared with the control (P≤0.000). B. subtilis applied to the root and salicylic acid applied to the foliage, reduced the severity of A. solani in tomato plants, and caused a significant increment in the crop growth and yield. The use of resistance inducers can represent an alternative of sustainable production and efficient control against pathogens, aimed at reducing the use of agrochemicals and production costs.Alternaria solani es el agente causal de la enfermedad del tizón temprano en el tomate (Solanum lycopersicum) y cada año es responsable de pérdidas económicas significativas sufridas por los productores de este cultivo a nivel mundial. Debido a que el ácido salicílico y Bacillus subtilis, son agentes inductores de resistencia en las plantas, estos fueron evaluados con la finalidad de conocer su efecto en la infección causada por el tizón temprano en el cultivo de tomate. Plantas de 75 días de edad se trasplantaron en surcos de 8 m de ancho por 43,2 m de largo, se realizó la aplicación exógena de los tratamientos, se evaluaron variables de crecimiento (altura de la planta y diámetro del tallo), rendimiento (frutos totales) y daño en plantas de tomate. Los resultados muestran que existen diferencias estadísticas significativas entre los tratamientos comparados con el testigo (P≤0,000). B. subtilis aplicado a la raíz y ácido salicílico aplicado al follaje, redujo la severidad de A. solani en plantas de tomate, al mismo tiempo que causó un incremento significativo en el crecimiento y rendimiento del cultivo. La utilización de inductores de resistencia puede representar una alternativa de producción sustentable y eficiente para el control de patógenos, a fin de reducir el uso de agroquímicos y los costos de producción. Palabras clave inductores de resistencia • Alternaria solani • producción sustentableFil: Espinosa-Vázquez, Miguel Ángel. Universidad de Ciencias y Artes de Chiapas (México). Facultad de Ingeniería. Maestría en Ciencias en Desarrollo Sustentable y Gestión de RiesgosFil: Espinoza-Medinilla, Eduardo Estanislao. Universidad de Ciencias y Artes de Chiapas (México). Facultad de Ingeniería. Maestría en Ciencias en Desarrollo Sustentable y Gestión de RiesgosFil: Orantes-García, Carolina. Universidad de Ciencias y Artes de Chiapas. Instituto de Ciencias BiológicasFil: Garrido-Ramírez, Eduardo. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (México)Fil: Rioja-Paradela, Tamara Mila. Universidad de Ciencias y Artes de Chiapas (México). Facultad de Ingeniería. Maestría en Ciencias en Desarrollo Sustentable y Gestión de Riesgo