Una mirada al m??n de les falles des de l'escola

Resumen basado en el de la publicaci??n

El Museu dels Volcans de la Garrotxa

Resumen basado en el de la publicaci??n

Elaboraci??n y validaci??n de una escala de creencias de los alumnos de Educaci??n Secundaria Obligatoria respecto al medio ambiente

Resumen tomado de la publicaci??n

El desarrollo dial??gico de la argumentaci??n informal en el comentario de texto

Resumen basado en el de la publicaci??n

La relación entre el aprendizaje léxico y el desarrollo gramatical

El presente trabajo se centra en estudiar la relación que existe entre el desarrollo de léxico y el de la morfosintaxis. Concretamente pretendemos explorar el tipo de vocabulario que mejor predice el desarrollo de la morfología verbal y el de la complejidad gramatical, así como establecer el tipo de relación entre desarrollo léxico y desarrollo morfosintáctico. La muestra comprende 517 niños de edades comprendidas entre los 18 meses y los 30 meses. Los datos se han recogido a partir de la adaptación al catalán del instrumento MacArthur-Bates Communicative Development Inventories (CDI). Los resultados muestran que el mejor predictor del desarrollo morfológico y gramatical es el vocabulario de clase cerrada, conjuntamente con el vocabulario general. Por otra parte, se observa una relación predominantemente lineal entre el desarrollo del léxico y el desarrollo morfosintáctico

Narration for instructional video: operation and maintenance of the Nucleus 22 Channel Cochlear Implant

This paper presents the narration for an educational video on cochlear implants and the implantation process aimed at parents and teachers of hearing-impaired children.

Evaluación sobre el cumplimiento del Plan de Acción de Durban

El Estado Ecuatoriano es suscriptor de la Convención Internacional sobre la Eliminación de todas las Formas de Discriminación Racial. Desde el 2001, en que se adoptó la Declaración y el Plan de Acción de Durban, el Estado no ha aplicado una política sostenida, integral que fomente una amplia aplicación de este plan. Aunque se han implementado una serie de mecanismos que le ayudan en este propósito, sin embargo el nivel de racismo y discriminación en el país es muy alto, bordea el 10%, de personas que se reconocen abiertamente racistas. Es necesario redoblar los esfuerzos, para cumplir con la Constitución 2008, y los instrumentos internacionales de protección.

Kipus: revista andina de letras. 15 (Reseñas)

Presenta las reseñas de los siguientes libros: Susana Zanetti, LA DORADA GARRA DE LA LECTURA. LECTORAS y LECTORES DE NOVELA EN AMÉRICA LATINA, Rosario: Beatriz Viterbo, 2002, 448 pp. -- Orlando Pérez, LA CELEBRACiÓN DE LA LIBERTAD, Quito: Libresa, Colección Crónica de sueños, 2002. -- Martha Rodríguez, PERO ES DESPUÉS, BAJO EL SOL, Quito: Libresa, Colección Crónica de sueños, 2002, 95 pp. -- Tomás Eloy Martínez, EL VUELO DE LA REINA, Madrid: Alfaguara, 2002, 295 pp. -- Gabriela Alemán, FUGA PERMANENTE, Quito: Eskeletra, 2a. ed., 2002, 113 pp. -- Alfonso Monsalve, CUENTOS DE PELÍCULA, Quito: Eskeletra, 2002, 182 pp. -- Galo Mora W. UN PÁJARO REDONDO PARA JUGAR, Quito: Eskeletra, 2002,289 pp. -- Sonia Navarro, SABOR A OLVIDO (BIOGRAFÍA DE LA SRA. RENÉ), Guayaquil: Centro de Difusión y Publicaciones Espol, 165 pp. -- Margarito Cuéllar, LOS RIESGOS DEL PLACER, Carolina Andrade Monterrey, Nuevo León: Ediciones Castillo S. A.de C. V., 2002, 78 pp.

Construction of a historical Water Pollution Index for the Mersey Basin

The Mersey Basin has been significantly polluted for over 200 years. However, there is a lack of quantitative historical water quality data as effective water quality monitoring and data recording only began 30-40 years ago. This paper assesses water pollution in the Mersey Basin using a Water Pollution Index constructed from social and economic data. Methodology, output and the difficulties involved with validation are discussed. With the limited data input available the index approximately reproduces historical water quality. The paper illustrates how historical studies of environmental water quality may provide valuable identification of factors responsible for pollution and a marker set for contemporary and future water quality issues in the context of the past. This is an issue of growing research interest.

Database Engines for Geographical Information Systems

Our ability to identify, acquire, store, enquire on and analyse data is increasing as never before, especially in the GIS field. Technologies are becoming available to manage a wider variety of data and to make intelligent inferences on that data. The mainstream arrival of large-scale database engines is not far away. The experience of using the first such products tells us that they will radically change data management in the GIS field.

On the steadiness of separating meandering currents

The existence of inertial steady currents that separate from a coast and meander afterward is investigated. By integrating the zonal momentum equation over a suitable area, it is shown that retroflecting currents cannot be steady in a reduced gravity or in a barotropic model of the ocean. Even friction cannot negate this conclusion. Previous literature on this subject, notably the discrepancy between several articles by Nof and Pichevin on the unsteadiness of retroflecting currents and steady solutions presented in other papers, is critically discussed. For more general separating current systems, a local analysis of the zonal momentum balance shows that given a coastal current with a specific zonal momentum structure, an inertial, steady, separating current is unlikely, and the only analytical solution provided in the literature is shown to be inconsistent. In a basin-wide view of these separating current systems, a scaling analysis reveals that steady separation is impossible when the interior flow is nondissipative (e.g., linear Sverdrup-like). These findings point to the possibility that a large part of the variability in the world’s oceans is due to the separation process rather than to instability of a free jet.

The population genetic structure of clonal organisms generated by exponentially bounded and fat-tailed dispersal

Long distance dispersal (LDD) plays an important role in many population processes like colonization, range expansion, and epidemics. LDD of small particles like fungal spores is often a result of turbulent wind dispersal and is best described by functions with power-law behavior in the tails ("fat tailed"). The influence of fat-tailed LDD on population genetic structure is reported in this article. In computer simulations, the population structure generated by power-law dispersal with exponents in the range of -2 to -1, in distinct contrast to that generated by exponential dispersal, has a fractal structure. As the power-law exponent becomes smaller, the distribution of individual genotypes becomes more self-similar at different scales. Common statistics like G(ST) are not well suited to summarizing differences between the population genetic structures. Instead, fractal and self-similarity statistics demonstrated differences in structure arising from fat-tailed and exponential dispersal. When dispersal is fat tailed, a log-log plot of the Simpson index against distance between subpopulations has an approximately constant gradient over a large range of spatial scales. The fractal dimension D-2 is linearly inversely related to the power-law exponent, with a slope of similar to -2. In a large simulation arena, fat-tailed LDD allows colonization of the entire space by all genotypes whereas exponentially bounded dispersal eventually confines all descendants of a single clonal lineage to a relatively small area.