Stories : narrative activities for the language classroom.

Las historias sirven en el aula de tres formas principales: proporcionando un medio de enseñanza y aprendizaje del idioma en general, proporcionando el proceso de adquisición de una segunda lengua específicamente, y para ayudar a construir un sentido de comunidad en el aula. Este recurso es para profesores que quieren utilizar en clase cuarenta y dos actividades con diferentes géneros y narrativa, así como asesoramiento sobre su uso en la clase. Tiene referencias y recursos de carácter general, recursos comentados y recursos en internet.

OCR : citizenship studies for GCSE short and full courses. 'OCR : estudios de ciudadanía para cursos breves y completos de GCSE'.

Cumple con los requisitos del programa de estudios sobre Ciudadanía en la etapa 4 de secundaria (key stage 4) y, también, sirve para la preparación de varios cursos del título General Certificate Secondary Education (GCSE), concedido por el organismo OCR. Los objetivos de este programa son: dar las habilidades y conocimientos, que afectan a la gente en su vida cotidiana, como el derecho, la política y la economía, para ayudarles a entender mejor lo que pasa en la sociedad y en el complicado mundo en que vivimos. Y, también, ofrecer oportunidades para el debate, la acción práctica y la investigación. El libro está dividido en doce temas estructurados así: el estudio de un caso, basado en hechos reales, seguido de preguntas para la discusión y el debate, explicaciones y detalles de fondo y, por último, definiciones de palabras y de conceptos clave.

Creating stories with children.

Ofrece a los profesores ideas y actividades para ayudar a los niños a inventar sus propias historias en inglés. Fomenta la creatividad, la confianza y la fluidez y precisión en el inglés hablado y escrito, y presenta prácticas de escritura creativa para enseñar a los niños a construir relatos. Incluye actividades para la etapa de primaria y hojas de ejercicios que pueden fotocopiarse.

OCR citizenship studies revision guide : for GCSE short and full courses.

Guía de revisión para consolidar los conocimientos y la comprensión de los estudios de Ciudadanía en los cursos corto y largo para el General Certificate of Secondary Education (GCSE) especificación OCR y para ayudar a los estudiantes a revisar y darles confianza en los exámenes. Está organizada en dos temas: los derechos y responsabilidades; identidad, la democracia y la justicia y diseñada para permitir al alumno a entender lo que significa ser británico y la importancia de la cohesión de la comunidad para el desarrollo social y bienestar económico de nuestra sociedad; desarrollar y aplicar el conocimiento y la comprensión necesarios para convertirse en un ciudadano informado, activo y responsable a nivel local, nacional y mundial.

Stories of ourselves : the University of Cambridge International Examinations anthology of stories in english.

Antología de relatos de escritores de diferentes países y culturas, como Charles Dickens, H.G. Wells, Virginia Woolf, Graham Greene, V.S. Naipaul, Raymond Carver, Jhumpa Lahiri y Annie Proulx. Su contenido se adapta al estudio del CIE, IGCSE y a los exámenes del nivel AS y nivel A de literatura en inglés.

Psychometric properties of the School Anxiety Inventory-Short Version in Spanish secondary education students

Resumen tomado de la publicaci??n

A comparison of discriminant logistic regression and Item Response Theory Likelihood-Ratio Tests for Differential Item Functioning (IRTLRDIF) in polytomous short tests

Resumen tomado de la publicaci??n

Combined Analysis of the Short-Term Effects of Photochemical Air Pollutants on Mortality within the EMECAM Project

In recent years, some epidemiologic studies have attributed adverse effects of air pollutants on health not only to particles and sulfur dioxide but also to photochemical air pollutants (nitrogen dioxide and ozone). The effects are usually small, leading to some inconsistencies in the results of the studies. Furthermore, the different methodologic approaches of the studies used has made it difficult to derive generic conclusions. We provide here a quantitative summary of the short-term effects of photochemical air pollutants on mortality in seven Spanish cities involved in the EMECAM project, using generalized additive models from analyses of single and multiple pollutants. Nitrogen dioxide and ozone data were provided by seven EMECAM cities (Barcelona, Gijón, Huelva, Madrid, Oviedo, Seville, and Valencia). Mortality indicators included daily total mortality from all causes excluding external causes, daily cardiovascular mortality, and daily respiratory mortality. Individual estimates, obtained from city-specific generalized additive Poisson autoregressive models, were combined by means of fixed effects models and, if significant heterogeneity among local estimates was found, also by random effects models. Significant positive associations were found between daily mortality (all causes and cardiovascular) and NO2, once the rest of air pollutants were taken into account. A 10 μg/m3 increase in the 24-hr average 1-day NO2 level was associated with an increase in the daily number of deaths of 0.43% [95% confidence interval(CI), –0.003–0.86%] for all causes excluding external. In the case of significant relationships, relative risks for cause-specific mortality were nearly twice as much as that for total mortality for all the photochemical pollutants. Ozone was independently related only to cardiovascular daily mortality. No independent statistically significant relationship between photochemical air pollutants and respiratory mortality was found. The results in this study suggest that, given the present levels of photochemical pollutants, people living in Spanish cities are exposed to health risks derived from air pollution

Design and synthesis of short antimicrobial peptides for plant protection. Study of their mode of action

Aquesta tesi doctoral està basada en el desenvolupament de nous agents antimicrobians derivats del pèptid híbrid cecropina A-melitina WKLFKKILKVL-NH2 (Pep3) que siguin sostenibles i útils per al control de malalties de plantes. Es van dissenyar i sintetitzar més de 133 anàlegs de Pep3 mitjançant química combinatòria. Es van obtenir anàlegs de Pep3 amb una elevada activitat contra fitopatògens i que presentaven baixa toxicitat. Els millors anàlegs van presentar eficàcies comparables amb pesticides de referència en la prevenció d'infeccions causades per fitopatògens. Es va estudiar el mecanisme d'acció de KKLFKKILKYL-NH2 (BP100) investigant la seva interacció amb models de membrana mitjançant tècniques espectroscòpiques. Es va observar la capacitat de BP100 a induir la permeabilització, la neutralització, i l'agregació de vesícules lipídiques aniòniques a una determinada concentració llindar. Es va deduir una equació que relaciona la CMI d'un pèptid antimicrobià amb la constant de partició i la concentració llindar en la membrana.

Short report: Historical analysis of a near disaster: Anopheles gambiae in Brazil

Attributed to human-mediated dispersal, a species of the Anopheles gambiae complex invaded northeastern Brazil in 1930. This event is considered unique among the intercontinental introductions of disease vectors and the most serious one: ""Few threats to the future health of the Americas have equalled that inherent in the invasion of Brazil, in 1930, by Anopheles gambiae."" Because it was only in the 1960s that An. gambiae was recognized as a species complex now including seven species, the precise species identity of the Brazilian invader remains a mystery. Here we used historical DNA analysis of museum specimens, collected at the time of invasion from Brazil, and aimed at the identification of the Brazilian invader. Our results identify the arid-adapted Anopheles arabiensis as being the actual invading species. Establishing the identity of the species, in addition to being of intrinsic historical interest, can inform future threats of this sort especially in a changing environment. Furthermore, these results highlight the potential danger of human-mediated range expansions of insect disease vectors and the importance of museum collections in retrieving historical information.

Second-order model for remote and close-up short-circuit faults currents on DC traction supply

A technique to calculate the current waveform for both close-up and remote short-circuit faults on DC supplied railways and subways is presented. Exact DC short-circuit current calculation is best performed by sophisticated computer transient simulations. However, an accurate simplified calculation method based on second-order approximation which can be easily executed with the help of a calculator or a spreadsheet program is proposed.

Short-term effects of gamma ray bursts on Earth

The aim of the present work is to study the potential short-term atmospheric and biospheric influence of Gamma Ray Bursts on the Earth. We focus in the ultraviolet flash at planet`s surface, which occurs as a result of the retransmission of the gamma radiation through the atmosphere. This would be the only important short-term effect on life. We mostly consider Archean and Proterozoic eons, and for completeness we also comment on the Phanerozoic. Therefore, in our study we consider atmospheres with oxygen levels ranging from 10(-5) to 1 of the present atmospheric level, representing different moments in the oxygen rise history. Ecological consequences and some strategies to estimate their importance are outlined.

Short-term movements of the South American rattlesnake (Crotalus durissus) in southeastern Brazil

Ecological studies of movements in animals require extensive knowledge of direction, distance and frequency of movements. The purpose of this study was to describe the daily and seasonal movements in a population of the South American rattlesnake, Crotalus durissus. The study population inhabits a cerrado area in southeastern Brazil. Snakes were tracked with externally attached radio-transmitters and thread bobbins. Larger animals tended to make more extensive daily movements, moving further from the initial site of capture. There were no differences in average daily movements between sexes. Site fidelity was higher in the dry season for both sexes. Both sexes moved distances twice as long as those calculated by drawing a straight line between consecutive points. The movement pattern of C. durissus seemed to be similar to that observed in other tropical pit vipers, such as species of the genus Bothrops.