16 research outputs found

    Inteligencia emocional y su papel en la flexibilidad cognitiva de niños con y sin trastorno por déficit de atención con hiperactividad

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    The aim of this study was to compare role of emotional intelligence in cognitive flexibility of children with and without Attention Deficit Hyperactivity Disorder (ADHD). Participants were 20 children (mean age = 10.25, SD = 2.12) with ADHD and 30 normal children (mean age = 10.96, SD = 1.32) that all of they were boy. All participants completed the Emotional Intelligence Questionnaire (Schutte et al., 1998) and the classic Stroop test, as a measure of cognitive flexibility.  ADHD children performed poorer on both measures than non-ADHD children.  And emotional intelligence predictors of cognitive flexibility in two groups. Overall, in children with attention deficit – hyperactivity disorder there are low performance of emotional intelligence and cognitive flexibility.El objetivo de este estudio fue comparar el papel de la inteligencia emocional en la flexibilidad cognitiva de niños con y sin trastorno por déficit de atención e hiperactividad (TDAH). Los participantes fueron 20 niños (edad promedio = 10.25, DT = 2.12) con TDAH y 30 niños normales (edad promedio = 10.96, DT = 1.32) que todos eran niños. Todos los participantes completaron el Cuestionario de inteligencia emocional (Schutte et al., 1998) y la prueba clásica de Stroop, como una medida de la flexibilidad cognitiva. Los niños con TDAH se desempeñaron peor en ambas medidas que los niños sin TDAH. Y predictores de inteligencia emocional de la flexibilidad cognitiva en dos grupos. En general, en niños con déficit de atención - trastorno de hiperactividad hay bajo rendimiento de inteligencia emocional y flexibilidad cognitiva

    Foliar Application of Humic Acid on Quantitative and Qualitative Characteristics of Aromas Strawberry in Soilless Culture

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    ABSTRACT Consequently, the application of 1.5-3 mgL -1 humic acid is recommended in hydroponic culturing of strawberry

    Effects of Aloe Vera Gel, Salicylic acid and Hot Water on Fruit Decay and Quality Properties of Sweet Lemon Fruit during Storage

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    In order to investigate the effect of Aloe vera gel, salicylic acid and hot water treatment, on postponement of decay and improvement of fruit quality, a factorial experiment based on a completely randomized design with eight treatments and four replications was conducted in 2015. Treatments included Aloe vera gel in 3 concentrations of 0, 25 and 50%, salicylic acid at 2 rates of 1.5 and 3 mM and hot water at three temperatures of 35, 45 and 55oC for 20 minutes. Treated and untreated fruits were held at 20oC and 85-90% RH and fruits characteristics were evaluated in 15 days intervals during 60 days of storage. Traits such as the percent of fruit weight loss, fruit decay, fruit browning, Total Soluble Solid (TSS), titration acidity as well as pH and fruit skin color (a*, b* and l*) were measured. The results showed that percent of fruit weight loss, fruit decay and fruit browning in untreated fruits increased after 60 days in storage. The lowest fruit weight loss (7.64%), fruit decay (14.9%) and fruit browning (2.81%) were obtained in fruits treated with salicylic acid and Aloe vera gel when compared with untreated fruits. Also fruits treated with salicylic acid and Aloe vera gel were found to be superior in terms of color (a*, b* and l*) after 60 days in storage. Finally, application of salicylic acid at 3 mM and Aloe vera gel at 25-50% treatments may be recommended for improving the postharvest quality of sweet lemon. &nbsp

    The role of antioxidative enzymes in copper tolerance strategy of Mimosaceace prosopis farcta growing in a copper mine

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    In this study, we determined the accumulation levels of copper in tissues and the status of antioxidant enzyme activities in Mimosa­ceace prosopis fracta against Cu-toxicity in a copper mine. We measured the level of chlorophyll and the activities of superoxide dismutase, glutathione peroxidase and catalase by spectrometry, malondialdehyde and dityrosine by HPLC and the levels of Cu in tissues and soils by atomic absorption spectrometry. Total and available copper were at toxic levels for plants growing in contaminated soil (zone 1). However, there were no visual or conspicuous symptoms of Cu-toxicity in plant species. Excess copper was transferred into C. ambrosioides tissues. The Mimosaceace prosopis fracta accumulated Cu in roots and then in leaves, in which the leaves’ chloroplasts stored Cu to approximately two times that of vacuoles. In zone 1, the chlorophyll levels increased significantly in leaves of Mimosaceace prosopis fracta with respect to the same plant growing in uncontaminated soil (zone 2). The studied plants in zone 1 revealed a significant increase in tissue antioxidant enzyme activities in comparison with the same plants in zone 2. The levels of oxidative damage biomarkers of lipids, such as MDA and proteins such as dityrosine, were higher in tissues of Mimo­saceace prosopis fracta that were grown in zone 1 as compared to the same plant species in zone 2, though this difference was not significant. The levels of these biomarkers were higher in roots, stems and leaves, respectively, in both zones. There were significant differences between roots and leaves for these parameters. We concluded that elevation of antioxidative enzyme activities was a tolerance strategy in the studied plants that protected them against copper toxicity

    Emotional Intelligence and its role in Cognitive Flexibility of Children with and without Attention Deficit Hyperactivity Disorder

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    El objetivo de este estudio fue comparar el papel de la inteli- gencia emocional en la flexibilidad cognitiva de niños con y sin trastorno por déficit de atención e hiperactividad (TDAH). Los participantes fueron 20 niños (edad promedio = 10.25, DT = 2.12) con TDAH y 30 niños normales (edad promedio = 10.96, DT = 1.32) que todos eran niños. To- dos los participantes completaron el Cuestionario de inteligencia emocional (Schutte et al., 1998) y la prueba clásica de Stroop, como una medida de la flexibilidad cognitiva. Los niños con TDAH se desempeñaron peor en ambas medidas que los niños sin TDAH. Y predictores de inteligencia emocional de la flexibilidad cognitiva en dos grupos. En general, en niños con déficit de atención - trastorno de hiperactividad hay bajo rendimiento de inteligencia emocional y flexibilidad cognitiva.The aim of this study was to compare role of emotional intelli- gence in cognitive flexibility of children with and without Attention Defi- cit Hyperactivity Disorder (ADHD). Participants were 20 children (mean age = 10.25, SD = 2.12) with ADHD and 30 normal children (mean age = 10.96, SD = 1.32) that all of they were boy. All participants completed the Emotional Intelligence Questionnaire (Schutte et al., 1998) and the classic Stroop test, as a measure of cognitive flexibility. ADHD children per- formed poorer on both measures than non-ADHD children. And emo- tional intelligence predictors of cognitive flexibility in two groups. Overall, in children with attention deficit – hyperactivity disorder there are low performance of emotional intelligence and cognitive flexibility

    Foliar Application of Humic Acid on Quantitative and Qualitative Characteristics of 'Aromas' Strawberry in Soilless Culture

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    ABSTRACT In order to evaluate the effect of humic acid on quantitative and qualitative characteristics of strawberry (Fragaria ananasa cv. 'Aromas'), an experiment was conducted as factorial arrangement in randomized complete block design with three replications in a commercial hydroponic greenhouse. The rooted daughter plants of 'Aromas' strawberry were planted in pots containing perlite and cocopea

    12.22: Seismic performance of high capacity hybrid beam-columns: Comprising of high strength steel tubes subjected to lateral cyclic loading

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    ABSTRACT High strength and ultra‐high strength materials are widely used in industrial applications significantly increasing the load bearing capacity and reducing the overall weight and cost. The present study continues a series of experimental investigations on innovative fabricated hybrid sections consisting of high strength steel tubes welded to mild steel plates. This type of innovative section is proposed with the aim of promoting the application of high and ultra‐high tensile steel in construction, taking advantage of the load‐bearing capacity of these materials along with the coupled effect of ductile mild steel plates. Large‐scale hybrid columns are tested under a combination of axial load and lateral cyclic load using a multi‐axis substructure testing (MAST) facility. Lateral cyclic loadings are applied along with constant axial loads of which the hysteretic curves are obtained for various grades of steel tubes, namely, mild steel tube (grade 300), high strength steel tube (grade 800) and ultra‐high strength steel tube (grade1200). Test results are analysed to examine the seismic performance of these proposed innovative sections and obtain the combined axial and lateral cyclic capacities, drifts, strains and plastic hinge distributions along the beam‐columns. The effect of tube material is considered and the axial shortening observations are compared to constant compression. The experimental outcomes of this paper can be incorporated in nonlinear modelling of structures consisting of ultra‐high strength steel tubes
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