997 resultados para Benlloch, Josefa-Exèquies


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Do promotions in a certain category lead to higher revenues in other categories? If so, to what degree? The answers to these questions are highly relevant for retailers that supply products in different categories. Empirical findings in studies that consider a limited number of categories indicate small promotional cross-category effects. This study develops a framework to determine the impact of price promotions on category revenues that include interdependencies among a substantial number of categories at the category demand level. The own- and cross-category demand effects are moderated by variables such as promotion intensity, category characteristics (own-category effects), and spatial distances between shelf locations (cross-category effects). The empirical results based on daily store-level scanner data show that approximately half of all price promotions expand own-category revenues, especially for categories with deeper supported discounts. There is a high probability (61%) that a price promotion affects sales of at least one other category. The number of categories affected is not greater than two. Moderate evidence supports the existence of cross-promotional effects between categories more closely located in a store.

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Pese a la importancia de cuantificar el efecto de las promociones del precio sobre la venta de productos no promocionados, la evidencia empírica existente en esta área es escasa y poco concluyente. El presente trabajo analiza el efecto simultáneo de todas las promociones del precio llevadas a cabo por el minorista sobre la venta de productos no promocionados, teniendo en cuenta el papel moderador del tipo de visita que lleva a cabo el cliente al establecimiento. Los resultados de este trabajo revelan que las promociones del precio estimulan la venta de productos no promocionados, pero que la fuerza de este estímulo depende del tipo de visita y de si la promoción del precio es anunciada o no en el folleto del minorista. En concreto se evidencia que la magnitud del efecto es mayor para los clientes que llevan a cabo una visita especial y cuando las promociones del precio son anunciadas en el folleto publicitario del minorista.

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Extant research on the decomposition of unit sales bumps due to price promotions considers these effects only within a single product category. This article introduces a framework that accommodates specific cross-category effects. Empirical results based on daily data measured at the item/SKU level show that the effects of promotions on sales in other categories are modest. Between-category complementary effects (20%) are, on average, substantially larger than between-category substitution effects (11%). Hence, a promotion of an item has an average net spin-off effect of (20 - 11 =) 9% of its own effect. The number of significant cross-category effects is low, which means that we expect that, most of the time, it is sufficient to look at within-category effects only. We also find within-category complementary effects, which implies that competitive items within the category may benefit from a promotion. We find small stockpiling effects (6%), modest cross-item effects (22%), and substantial category-expansion effects (72%). The cross-item effects are the result of cross-item substitution effects within the category (26%) and within-category complementary effects (4%). Approximately 15% (= 11% / 72%) of the category-expansion effect is due to between-category substitution effects of dependent categories.

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Durante el curso pasado, la red REDITS avanzó en la identificación de diversas estrategias para mejorar la adquisición de competencias que quedaron volcadas en la memoria del proyecto desarrollado. Siguiendo con el trabajo iniciado, la red se propuso una labor de transferencia de conocimientos comparativos en prácticas docentes innovadoras para formación en competencias entre cuatro universidades españolas y una italiana. Este objetivo supone que una vez realizada una primera identificación de posibles buenas prácticas, debe realizarse su validación antes de replicarla. Una vez concluido ese trabajo se las incorporará a una Guía de buenas prácticas en didáctica de TS. Asimismo, del proceso de validación surgen debates y propuestas de análisis para supervisión y sistematización de la práctica en TS. Para este curso se seleccionaron dos buenas prácticas, la supervisión educativa y la realización de una experiencia de elaboración y edición de una revista desde criterios científicos. En la primera práctica se trabajó desde la evaluación mediante la aplicación de un cuestionario aplicado a diversas universidades con experiencia en este tipo de actividad y en el segundo caso al tratarse de una experiencia más novedosa se realizó su sistematización, recogiendo paralelamente el nivel de satisfacción del estudiantado con la práctica.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Fil: Suárez, María Josefa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Chemical Stratigraphy, or the study of the variation of chemical elements within sedimentary sequences, has gradually become an experienced tool in the research and correlation of global geologic events. In this paper 87Sr/ 86Sr ratios of the Triassic marine carbonates (Muschelkalk facies) of southeast Iberian Ranges, Iberian Peninsula, are presented and the representative Sr-isotopic curve constructed for the upper Ladinian interval. The studied stratigraphic succession is 102 meters thick, continuous, and well preserved. Previous paleontological data from macro and micro, ammonites, bivalves, foraminifera, conodonts and palynological assemblages, suggest a Fassanian-Longobardian age (Late Ladinian). Although diagenetic minerals are present in small amounts, the elemental data content of bulk carbonate samples, especially Sr contents, show a major variation that probably reflects palaeoenvironmental changes. The 87Sr/86Sr ratios curve shows a rise from 0.707649 near the base of the section to 0.707741 and then declines rapidly to 0.707624, with a final values rise up to 0.70787 in the upper part. The data up to meter 80 in the studied succession is broadly concurrent with 87Sr/86Sr ratios of sequences of similar age and complements these data. Moreover, the sequence stratigraphic framework and its key surfaces, which are difficult to be recognised just based in the facies analysis, are characterised by combining variations of the Ca, Mg, Mn, Sr and CaCO3 contents

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Citizens say they are very concerned about the environment, and they know the role they play in their deterioration; but there is a gap between this proclaimed interest and the mobilization against environmental problems. Several news published between 2010 and 2011 about the Spanish energy policy and Doñana have economic and social aspects, that sometimes are confused with environmental aspects. It is worthy of study, therefore, to analyze how the press reflects that citizen interest; and how a critical issue as the quality of the information can influence the attitude of citizens in issues related to the environment. If the journalistic practice does not meet quality its function, it will condition the social participation.

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Concept maps are a technique used to obtain a visual representation of a person's ideas about a concept or a set of related concepts. Specifically, in this paper, through a qualitative methodology, we analyze the concept maps proposed by 52 groups of teacher training students in order to find out the characteristics of the maps and the degree of adequacy of the contents with regard to the teaching of human nutrition in the 3rd cycle of primary education. The participants were enrolled in the Teacher Training Degree majoring in Primary Education, and the data collection was carried out through a training activity under the theme of what to teach about Science in Primary School? The results show that the maps are a useful tool for working in teacher education as they allow organizing, synthesizing, and communicating what students know. Moreover, through this work, it has been possible to see that future teachers have acceptable skills for representing the concepts/ideas in a concept map, although the level of adequacy of concepts/ideas about human nutrition and its relations is usually medium or low. These results are a wake-up call for teacher training, both initial and ongoing, because they shows the inability to change priorities as far as the selection of content is concerned.

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La asignatura Ciencias Sociales y su Didáctica I (Geografía) de los estudios de Grado en Educación Primaria es, en la Universitat de les Illes Balears y en la mayoría de universidades españolas, el único contacto académico que mantendrán los futuros maestros con la Geografía. Existe un ambiente de preocupación sobre la formación de los maestros en España, inquietud que no es exclusiva de los geógrafos ni de nuestro país. El presente trabajo indaga en los conocimientos mínimos de Geografía exigibles a los futuros docentes a través de una prueba de conocimientos basada, en gran parte, en el currículo de Ciencias Sociales de Educación Primaria de la Comunidad Autónoma de las Islas Baleares. Los resultados obtenidos demuestran que el alumnado del Grado en Educación Primaria no ha interiorizado esos contenidos tras su dilatada trayectoria académica. Asimismo desvelan que aunque ninguna variable es determinante, el género, la escasa presencia de materias de Geografía en el sistema educativo español y el nivel de formación de los padres son algunos de los factores que inciden en los resultados alcanzados por los alumnos en una prueba piloto sobre la que se basa la investigación.