239 research outputs found

    Prevenção da evasão escolar do ensino secundário na Andaluzia já que a voz dos professores: Estudo de caso

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    El fracaso escolar es un concepto complejo. Suele achacarse a los sujetos como porcentualmente inevitable y se ignoran los demás fracasos convergentes (metodológicos, curriculares, organizativos…). Los centros poseen autonomía pedagógica para afrontar este reto. Este estudio de caso presenta una medida de apoyo en contraste con la realidad del aula ordinaria. Utiliza relatos de experiencia y entrevistas en profundidad. Destaca la importancia de prevenir la construcción de trayectorias consumadas de fracaso escolar. Reivindica la flexibilización curricular, la personalización de los procesos de enseñanza-aprendizaje, mediante metodologías activas y participativas y las altas expectativas sobre el alumnadoSchool failure is a complex concept. It is usually attributed to the subjects as percentage inevitable and the other convergent failures are ignored (methodological, curricular, organizational ...). Schools have pedagogical autonomy to face this challenge. This case study presents a measure of support in contrast to the reality of the ordinary classroom. We use stories of experience and in-depth interviews. It emphasizes the importance of preventing the construction of consummate trajectories of school failure. The article calls for curricular flexibility, personalization of teaching-learning processes, through active and participative methodologies and high expectations about studentsO fracasso escolar é um conceito complexo. Geralmente atribuída aos sujeitos como uma percentagem inevitável e outros convergiram falhas (metodológicos, curriculares, organizacional ...) são ignoradas. Os centros têm autonomia pedagógica para enfrentar este desafio. Este estudo de caso apresenta uma medida de apoio em contraste com a realidade da sala de aula comum. Use relatos de experiência e entrevistas. Ele salienta a importância de prevenir a construção de fracasso escolar caminhos consumados. Vindica a flexibilidade curricular, personalização do ensino-aprendizagem através de metodologias ativas e participativas e grandes expectativas para os aluno

    Behavioural loyalty towards store brands.

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    This paper applies a consumer brand choice model to measure store brand (SB) loyalty. The aim of this paper is to examine whether SB loyalty is different across categories, and we focus on risk perception as an explanatory variable. The model is estimated using ACNielsen Spanish household scanner panel data on two laundry detergent categories over a 2 year period for more than 1107 households. Loyalty, price, socio demographics and shopping behaviour variables are included. The discrete choice model formulation is the logit modelStore brands; National brands; Brand loyalty; Logit model; Household scanner panel;

    Impact assessment of mechanical harvest on fruit physiology and consequences on oil physicochemical and sensory quality from ‘Manzanilla de Sevilla’ and ‘Manzanilla Cacereña’ super-high-density hedgerows. A preliminary study

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    BACKGROUND Super-intensive cultivation facilitates olive mechanized harvesting, allowing substantial savings in the production cost of virgin olive oil (VOO). However, the number of varieties adapted to this type of cultivation is small. This study explores the impact that harvesting with a grape straddle harvester of ‘Manzanilla de Sevilla’ and ‘Manzanilla Cacereña’ olives grown in super-intensive cultivation has on the physiology of the fruit and the quality of the oil subsequently extracted. RESULTS For both cultivars, fruits harvested mechanically showed higher respiration and ethylene production and lower firmness than fruits harvested by hand. Their oils exhibited lower phenol contents, lower oxidative stability and lower presence of positive sensory attributes. However, in these oils the values of parameters used to assess the level of quality of VOO remained within the limits required for the best commercial category. CONCLUSION Mechanical harvesting of ‘Manzanilla de Sevilla’ and ‘Manzanilla Cacereña’ super-high-density hedgerows induced physiological alterations in the fruits and a reduction in the contents of natural antioxidants and flavour components in the oils, though it did not result in a loss of the ‘Extra’ level of quality. © 2014 Society of Chemical IndustryThis work was funded by the research project AGL2011-30371-C02-02 of the Spanish State Secretary for Research and by the FEDER program. Special thanks are due to Elaia SA for providing facilities for this study and to Alejandro Trigo (technical assistant of Elaia SA), María del Carmen Martínez, Cristina Rodríguez and Antonio Montero for technical assistance.Peer Reviewe

    Rapid Determination of Olive Oil Chlorophylls and Carotenoids by Using Visible Spectroscopy

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    The determination of total chlorophylls and total carotenoids in olive oil by using visible spectroscopy (VIS) is reported. The proposed technique has been compared with the determination of these pigments by near infrared spectroscopy (NIRS) and VIS together with NIRS. Several procedures for multivariate regression were tested. The reference methods used were the determination of the extinction coefficient K670 for total chlorophylls and K470 for total carotenoids. A total of 258 samples were tested. The optimization of the calibration for total chlorophylls was set by using multiple linear regression (MLR) from the wavelengths 670¿686 nm exclusively visible. Its satisfactory performance was proven from the model coefficients standard error of calibration SEC 2.63 and R2 0.97, and the residual predictive deviation (RPD) 5.76 from the external validation. For the total carotenoids the best VIS calibration was fit by using the window of 465¿475 nm and partial least squares (PLS), which provided an RPD of 3.68. However, the model built using the entire spectrum VIS-NIRS available (350¿2,500 nm) was slightly better for this last pigment, showing an RPD of 3.86. Hence, this study showed that the proposed VIS technique can be advantageous for the determination of total chlorophylls in olive oils while it is also suitable for determining total carotenoids.The authors are indebted to the Junta de Andalucía (project AGR-6456) for its financial support, and gratefully acknowledge Antonio Montero, of the Instituto de Recursos Naturales y Agrobiología (CSIC) for his technical assistance. Our thanks are also due to the group Quality and Purity of Oils, of the Instituto de la Grasa (CSIC), for the use of the chromatographic equipmentPeer Reviewe

    Behavioural loyalty towards store brands

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    This paper applies a consumer brand choice model to measure store brand (SB) loyalty. The aim of this paper is to examine whether SB loyalty is different across categories, and we focus on risk perception as an explanatory variable. The model is estimated using ACNielsen Spanish household scanner panel data on two laundry detergent categories over a 2 year period for more than 1107 households. Loyalty, price, socio demographics and shopping behaviour variables are included. The discrete choice model formulation is the logit modelThis research was supported by Ministerio de Educación y Ciencia Dir. Gral. de Investigación, Grant SEJ2004-00672Publicad

    Reproductive traits of the Colorada Pampeana goat

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    Information on seven different flocks of the Colorada goat breed in La Pampa (Argentina) was recorded during three consecutive years (1995-1997) to estimate reproductive performance. On the average, reproductive indexes were: fecundity: 87.85 percent, fertility: 92.12 percent, actual prolificity: 1.897 and commercial prolificity: 1.752. There were no signifficant differences among years for any index. On the contrary, flocks differed for fecundity and fertility percentage. Buck percentage was on the average 1.71 percent, and duration of the mating period was about 5 months. Abortus percentage was on the average 4.45 percent, being significantly higher (12.31 percent) in the dryest year. In conclusion, reproductive performance of the Colorada Pampeana goat was high, and it may be showing the adaptation of this breed to the agronomic and environmental conditions of La Pampa province.Durante tres años consecutivos (1995 a 1997) se estudiaron 7 majadas de cabra Colorada en la provincia de La Pampa (Argentina), obteniendo como promedio los siguientes índices reproductivos: fecundidad: 87,85 p.100; fertilidad: 92,12 p.100; prolificidad real: 1,897 y prolificidad comercial: 1,752. No se detectaron diferencias significativas entre años; pero sí entre establecimientos, para los índices de fecundidad y fertilidad. El porcentaje de machos reproductores utilizados para el servicio fue del 1,71 p.100, y la duración del período reproductivo fue aproximadamente de 5 meses. El porcentaje de abortos ha sido en promedio para los 3 años del 4,45 p.100, pero fue sensiblemente superior (12,31 p.100) durante el año de mayor sequía. Los altos índices reproductivos registrados confirman la buena adaptación de la cabra Colorada al medio ambiente en el que se desempeña

    Morphologic and phaneroptic characterization of the pampean red goat

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    The morphoestructure and coat characteristics of Red Goats or Wool Goats has been deteminated and compared with the remainder goats of the zone. The Red Goats were characterized as middlesized animals with 64.2 ± 2.80 cm of height at withers in females and 73.2 ± 3.61cm in males, and a live weight of 44.4 ± 6.03 kg and 71.1 ± 8.94 kg in females and males respectively. They have a strong sexual dimorphism, with a predominantly straight, head profile medium to large ear size, and Aegagrus or arch-spiral horn type. Their mantle is uniform, with an open face of fine, silky, and curli hair. Predominant mantle colours are reddish and light brown. The remainder evaluated goats have greater variability, specially in those characters important for racial diagnosis, as the front-nasal profile, horn type, ear type, pigmentation and hair characteristics.Se determinaron las características fanerópticas y medidas e índices morfológicos de cabras regionales pampeanas, particularmente del tipo que se conoce en la zona como cabra Colorada o de Lana, y se compararon con las del resto de cabras de la zona. Las cabras Coloradas son animales mediolíneos y eumétricos, de 64,2± 2,80 de alzada a la cruz en hembras y 73,2 ± 3,61cm en machos y 44,4 ± 6,03 kg y 71,1 ± 8,94 kg de peso en hembras y machos respectivamente. Son animales de fuerte dimorfismo sexual, con perfil fronto nasal predominantemente recto, orejas medianas a grandes y cuernos de tipo Aegagrus o arcoespiral. El manto es de tipo uniforme, con un vellón de pelo largo, fino, suave, sedoso y rizado, predominando las capas de color rojizo y los tostados. El resto de cabras evaluadas presentan mayor variabilidad, especialmente en aquellos caracteres de importancia en la diagnosis racial como el perfil fronto-nasal, tipo de cuernos, tipo de orejas, pigmentación y características del pelo

    Organic cheese market (Río Cuarto, Argentina). Valuation associated variables

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    Although most argentinian ecological products are targeted for export markets, domestic markets show signs of slow, but sustained growth. In order to assess the perception and willingness to purchase a new product (an organic cheese), attitudes and consumer behaviors were studied among consumers in Rio Cuarto. Data collection methods used in the survey were personal interviews with semi-structured questionaries and tasting of the new product. Bivariate and multivariate statistical analysis were performed. It was found that the willingness to pay a premium of 25 to 35 percent for this new product was associated with: social-economical variables as well as others related to food quality, like additive free and those concerned with specific attributes of the cheese such as brand and packaging. However, price and its organic label had more influence on the products valuation and potential buying decision.Si bien la producción ecológica argentina se ha destinado principalmente al mercado externo, el mercado interno manifiesta signos de crecimiento, lento, pero sostenido. Con el objetivo de conocer la valoración de los consumidores hacia un queso ecológico se estudiaron las actitudes y el comportamiento de los consumidores de la ciudad de Río Cuarto. La investigación se implementó a través de encuestas semiestructuradas, basadas en entrevistas personales a las familias y degustación del nuevo producto. Se realizaron análisis estadísticos bivariados y multivariados. La voluntad de pagar un sobreprecio de 25 a 35 p.100 por el nuevo producto se asoció a variables socioeconómicas, como así también a variables relacionadas con la calidad alimentaria (ausencia de conservantes y aditivos) y con atributos específicos del queso, como marca y presentación. Sin embargo, el precio del producto y su imagen de calidad ecológica fueron los factores que fundamentalmente incidieron en la valoración del producto y la decisión potencial de compra

    The importance of emotional intelligence and cognitive style in institutionalized older adults’ quality of life.

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    Despite previous evidence showing a positive relationship between emotional intelligence (EI) and quality of life (QoL), associating older adults’ emotional processing with several health indicators, few studies have explored both the IE and the mechanisms through which they affect QoL. This cross-sectional study analyzes themediator role of optimistic and pessimistic cognitive styles in the relationship between perceived EI (PEI) and QoL in 115 institutionalized older adults from Southern Spain. Regression analyses showed, after controlling for cognitive style, that PEI predicted a significant percentage of variance in: Health (β = .25, p < .01), Functional abilities (β = .20, p < .05), Activity and leisure (β =.17, p<.05) and Life satisfaction (β =.21, p<.05). Additionally, multiplemediation analysis revealed that cognitive style partially mediated the relationship between PEI and Health, Activity and leisure and Life satisfaction. Thus, PEI could promote personal but not external or environmental QoL aspects, highlighting the importance of developing emotional skills for healthy aging.pre-print511 K
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