Tree heights and diameters of Switzerland's Sanasilva forests

Measurements of tree heights and crown sizes are essential in long-term monitoring of spatially distributed forests to assess the health of forests over time. In Switzerland, in 1994 and 1997, more than 4'500 trees have been recorded in a 8x8 km plot within the Sanasilva Inventory, which comprises the Swiss Level I sites of the International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests' (ICP Forests). Tree heights and crown sizes were measured for the dominant and co-dominant trees (n = 1,723), resulting in a data set from 171 plots in Switzerland, spreading over a broad range of climatic gradient and forest characteristics (species recorded = 20). Average tree height was 22.1 m, average DBH 34.6 cm and crown diameter 6.5 m. The data set presented here is open to use and shall foster research in allometric equation modelling.

Altered hippocampal function in major depression despite intact structure and resting perfusion

A.F. is supported by Research Capability Funding from the Northumberland-Tyne-and-Wear NHS Foundation Trust awarded to R.H.M.-W.

FEARLUS-G: A Semantic Grid Service for Land-Use Modelling,

Postprint

Inspiring young people to engage in engineering education:The Aston University Engineering Academy Birmingham

This paper initially reports concerns about the falling interest in engineering and mathematical disciplines and looks at some of the reasons for this. It then discusses the aims of the Engineering Diploma - a qualification for 14-19 year olds in the UK - and the pedagogical research that that has informed the design and development. The paper highlights the key learning theories that support the delivery of this qualification and provides an example of how this pedagogy has been applied effectively through the curriculum partnership that has been developed between a consortium of schools in the Birmingham local authority, Aston University and employers. It establishes the importance of aligning the curriculum and articulating clear engineering progression routes from the age of fourteen to enable young people to be inspired and motivated towards careers in engineering. The paper presents the view of parents, teachers and pupils involved with the Diploma, during the first year, and the way in which the partnership is informing future developments in the delivery of engineering curriculum within the region. The success of this regional partnership model has resulted in the Department of Children, Schools and Families agreeing to fund the development of the Aston University Engineering Academy Birmingham. This is a school for 14-19 year olds that will open in 2012 on the Aston Science Park adjacent to the University. The final part of the paper looks at the benefits to the young local engineers of this initiative. © 2009 Authors.

Combining Information from Multiple Sources in Bayesian Modeling

Surveys can collect important data that inform policy decisions and drive social science research. Large government surveys collect information from the U.S. population on a wide range of topics, including demographics, education, employment, and lifestyle. Analysis of survey data presents unique challenges. In particular, one needs to account for missing data, for complex sampling designs, and for measurement error. Conceptually, a survey organization could spend lots of resources getting high-quality responses from a simple random sample, resulting in survey data that are easy to analyze. However, this scenario often is not realistic. To address these practical issues, survey organizations can leverage the information available from other sources of data. For example, in longitudinal studies that suffer from attrition, they can use the information from refreshment samples to correct for potential attrition bias. They can use information from known marginal distributions or survey design to improve inferences. They can use information from gold standard sources to correct for measurement error.

This thesis presents novel approaches to combining information from multiple sources that address the three problems described above.

The first method addresses nonignorable unit nonresponse and attrition in a panel survey with a refreshment sample. Panel surveys typically suffer from attrition, which can lead to biased inference when basing analysis only on cases that complete all waves of the panel. Unfortunately, the panel data alone cannot inform the extent of the bias due to attrition, so analysts must make strong and untestable assumptions about the missing data mechanism. Many panel studies also include refreshment samples, which are data collected from a random sample of new

individuals during some later wave of the panel. Refreshment samples offer information that can be utilized to correct for biases induced by nonignorable attrition while reducing reliance on strong assumptions about the attrition process. To date, these bias correction methods have not dealt with two key practical issues in panel studies: unit nonresponse in the initial wave of the panel and in the

refreshment sample itself. As we illustrate, nonignorable unit nonresponse

can significantly compromise the analyst's ability to use the refreshment samples for attrition bias correction. Thus, it is crucial for analysts to assess how sensitive their inferences---corrected for panel attrition---are to different assumptions about the nature of the unit nonresponse. We present an approach that facilitates such sensitivity analyses, both for suspected nonignorable unit nonresponse

in the initial wave and in the refreshment sample. We illustrate the approach using simulation studies and an analysis of data from the 2007-2008 Associated Press/Yahoo News election panel study.

The second method incorporates informative prior beliefs about

marginal probabilities into Bayesian latent class models for categorical data.

The basic idea is to append synthetic observations to the original data such that

(i) the empirical distributions of the desired margins match those of the prior beliefs, and (ii) the values of the remaining variables are left missing. The degree of prior uncertainty is controlled by the number of augmented records. Posterior inferences can be obtained via typical MCMC algorithms for latent class models, tailored to deal efficiently with the missing values in the concatenated data.

We illustrate the approach using a variety of simulations based on data from the American Community Survey, including an example of how augmented records can be used to fit latent class models to data from stratified samples.

The third method leverages the information from a gold standard survey to model reporting error. Survey data are subject to reporting error when respondents misunderstand the question or accidentally select the wrong response. Sometimes survey respondents knowingly select the wrong response, for example, by reporting a higher level of education than they actually have attained. We present an approach that allows an analyst to model reporting error by incorporating information from a gold standard survey. The analyst can specify various reporting error models and assess how sensitive their conclusions are to different assumptions about the reporting error process. We illustrate the approach using simulations based on data from the 1993 National Survey of College Graduates. We use the method to impute error-corrected educational attainments in the 2010 American Community Survey using the 2010 National Survey of College Graduates as the gold standard survey.

Methods for Imputing Missing Values and Synthesizing Confidential Values for Continuous and Magnitude Data

Abstract

Continuous variable is one of the major data types collected by the survey organizations. It can be incomplete such that the data collectors need to fill in the missingness. Or, it can contain sensitive information which needs protection from re-identification. One of the approaches to protect continuous microdata is to sum them up according to different cells of features. In this thesis, I represents novel methods of multiple imputation (MI) that can be applied to impute missing values and synthesize confidential values for continuous and magnitude data.

The first method is for limiting the disclosure risk of the continuous microdata whose marginal sums are fixed. The motivation for developing such a method comes from the magnitude tables of non-negative integer values in economic surveys. I present approaches based on a mixture of Poisson distributions to describe the multivariate distribution so that the marginals of the synthetic data are guaranteed to sum to the original totals. At the same time, I present methods for assessing disclosure risks in releasing such synthetic magnitude microdata. The illustration on a survey of manufacturing establishments shows that the disclosure risks are low while the information loss is acceptable.

The second method is for releasing synthetic continuous micro data by a nonstandard MI method. Traditionally, MI fits a model on the confidential values and then generates multiple synthetic datasets from this model. Its disclosure risk tends to be high, especially when the original data contain extreme values. I present a nonstandard MI approach conditioned on the protective intervals. Its basic idea is to estimate the model parameters from these intervals rather than the confidential values. The encouraging results of simple simulation studies suggest the potential of this new approach in limiting the posterior disclosure risk.

The third method is for imputing missing values in continuous and categorical variables. It is extended from a hierarchically coupled mixture model with local dependence. However, the new method separates the variables into non-focused (e.g., almost-fully-observed) and focused (e.g., missing-a-lot) ones. The sub-model structure of focused variables is more complex than that of non-focused ones. At the same time, their cluster indicators are linked together by tensor factorization and the focused continuous variables depend locally on non-focused values. The model properties suggest that moving the strongly associated non-focused variables to the side of focused ones can help to improve estimation accuracy, which is examined by several simulation studies. And this method is applied to data from the American Community Survey.

Culture in Transfer: Translation and Transcultural Communication International Conference

It is widely acknowledged that interpreters need to have knowledge of the cultures represented by the languages they work with (e.g. Roy 2002, Angelelli 2004, Wadensjŏ 2008). However, it is not clear what interpreters are expected to do with this knowledge. Some scholars recommend that interpreters be cultural mediators (e.g. Katan 2004 & 2014). As an attempt to examine existing guidelines on interpreters��� roles in the face of cultures/cultural issues, the research reported in this paper compares and contrasts the codes of conduct for interpreters from a number of associations and institutions in the UK, the US and China. The research has collected three different sets of data and has sought to investigate (1) in what ways interpreters are expected to do with their knowledge of cultures; (2) to what extent interpreters��� role as cultural mediators is referred to or defined in these codes of conduct; and (3) whether or not relevant guidelines are practically helpful for interpreters to deal with the range of cultural issues they may encounter in interpreting. Data analysis suggests that while cultural knowledge is a requisite for interpreters, the expectation for them to be cultural mediators may depend on the types of interpreting setting they work with and further guidelines are needed so that interpreters are clear on what they are required to do in dealing with cultural issues. The paper then discusses the implications of these findings and points to some directions for future research. Key references Brunette, L., G Bastin, I. Hemlin and H. Clarke (ed.). The Critical Link 3: Interpreters in the Community. Amsterdam/Philadephia: John Benjamins. Hale, S. 2007. Community Interpreting. Hampshire, New York: Palgrave Macmillan. The International Association of Conference Interpreting, 2015. Interpreting Explained. Available from: http://aiic.net/; accessed on 24 June 2015 Katan, David, --- 2004. Translating Cultures: An Introduction for Translators, Interpreters and Mediators. St Jerome. --- 2014. Workshop: Translation at the cross-roads: time for the transcreational turn? University College London. Martín, Mayte C. & Mary Phelan, 2009. Interpreters and Cultural Mediators – different but complementary roles. In: Translocations: Migration and Social Change. ISSN Number: 2009-0420 (online) McDonough Dolmaya, Julie, (2011. Moral ambiguity: Some shortcomings of professional codes of ethics for translators. In: The Journal of Specialised Translation. Issue 15, January 2011 (online). Pöchhacker, F., 2008. Interpreting as Mediation. In: (ed.) Valero Garcés, C. and Martin, A, Crossing Borders in Community Interpreting: definitions and dilemmas, pp. 9-26. John Benjamins Amsterdam and Philadelphia. Roy, Cynthia B., 2002. The Problem with Definitions, Descriptions, and the Role Metaphors of Interpreters. In: (ed.) Pöchhacker, Franz & Miriam Shlesinger, The Interpreting Studies Reader. Routledge. Wadensjö 1998. Interpreting as Interaction. New York: Addison Wesley Longman Inc.

El género epistolar en la prensa como visión ciudadana de la esfera pública en Colombia

A partir de un análisis temático inductivo, este artículo explora la visión ciudadana sobre la esfera pública expresada en las cartas de los lectores de los diarios El Tiempo y El Heraldo de Colombia. Los resultados muestran cómo la identidad colectiva de los lectores apareció en forma transversal en las cartas, para dar cuenta de una comunidad de adultos que se autodefine como “colombianos de bien”. El análisis reveló dos unidades de significado: posturas sobre la administración de lo público y antagonismos en la esfera pública, centrada en el conflicto político con las guerrillas. A través de estas se pudieron hacer visibles los llamamientos vívidos de los lectores al gobierno, funcionarios públicos, actores al margen de la ley y a sus compatriotas, para movilizarse para exigir cambios sociales largamente esperados.

Crisis communication in politics: forgiveness as image restoration tool

Crisis communication is a widely treated field. There are lot of works and guides which provide helpful information in order to face crisis situations successfully (Alcat, 2005, Benoit, 1997) and articles about case studies (Nespereira, 2014, Blaney y Benoit 2001). Nonetheless, most of times, these guides are focused on business or corporations (Abeler, 2010) and there are not such information about crisis communications in politics (Gaspar e Ibeas, 2015). The field is smaller if we speak about forgiveness as restoration image tool in politics (Harris 2006). Despite all, we live in “forgiveness era” as Krauze said (1998) where people demand to politicians to apologize when they have mistakes (Harris et al. 2006:716). So, we will try to make an approach to forgiveness in politics as a image restoration tool and analyze its capabilities in order to face crisis management.

El periodismo deportivo condicionado por la gestión comunicativa de los clubes de fútbol: el caso del FC Barcelona

Las relaciones entre los gabinetes de Comunicación de los clubes de fútbol y los periodistas deportivos se enmarcan en el modelo de Gieber y Johnson (1961) por el que el hecho de que ambos compartan objetivos comunes, donde los gabinetes de Comunicación necesitan que los medios publiquen determinadas informaciones y los periodistas precisan de noticias que publicar, provoca una pérdida de independencia por parte de los periodistas, ya que necesitan a esos departamentos como fuentes. En la actualidad, los departamentos de Comunicación de los clubes de fútbol, como el del FC Barcelona, se han constituido en gatekeepers. Esto ha acentuado las históricas diferencias que existen entre los periodistas y los profesionales de la comunicación corporativa, incrementado por el control informativo de estos departamentos lo que provoca constantes tensiones entre ambos.

Los más pequeños toman la palabra: La Escuela Infantil que a ellos les gustaría

El derecho a ser escuchado y participar en aquellos asuntos que afectan a los niños es un derecho fundamental de la infancia escasamente respetado por el adulto, quien tiende a silenciar su voz, infravalorando su visión y posible aportación. Ante esta realidad, la Escuela Infantil se erige como un marco privilegiado para la escucha y la participación de la infancia en aquellos temas que les afectan, contribuyendo a la formación de ciudadanos democráticos. A partir de un marco de escucha donde se concibe al pequeño como un sujeto activo, competente y experto en su propia vida, se ha llevado a cabo una investigación que ha adoptado el formato de estudio de caso, en la que se ha recogido a través de las técnicas del dibujo y de las conversaciones con niños, la visión que poseen los más pequeños sobre la Escuela Infantil, analizando el bienestar del niño en el contexto escolar, el sentido y finalidad que los niños otorgan a la escuela; el grado de satisfacción con la misma; sus gustos y preferencias en el contexto escolar; la autonomía y libertad que dicen poseer en la escuela; su visión sobre los aspectos organizativos que rigen el funcionamiento del centro y su perspectiva sobre cómo es y cómo les gustaría que fuera la participación de las familias en la escuela. Finalmente, se recogen sus propuestas de mejora para hacer de la Escuela Infantil a la que asisten su escuela ideal. Los resultados del estudio ponen de manifiesto la demanda de los niños de una Escuela Infantil diferente a la que conocen y la existencia de un pensamiento divergente del pensamiento adulto que es necesario escuchar y tener en consideración, siendo sus aportaciones de gran valía para poder iniciar procesos de innovación y mejora educativa.

“Animanazo”. Song and memories. Cultural expressions and movements in the reconstruction of the past inside a north Argentinian town

This article analyses the context of production and local situations of appropriation and resignification related to the folk song “Fire on Animaná” as well as the request and mobilization (“The animanazo”) provoked by this song in order to examine different mechanisms and foundations by which a population connect with an event from its community past, identifying with this and taking it in a specific way. In this article we combine discourse analysis of the song and of interviews to participants in this event with the reconstruction —through ethnographic observation— of how to use this song.

La evolución de un paratexto singular: las subscriptiones latinas

La historia de las subscriptiones latinas revela alteraciones tanto en su frecuencia como en el tipo de información que transmiten, y en consecuencia también en su función. En un primer momento proporcionan datos escuetos con una finalidad práctica: la identificación del contenido de un libro concreto. En la Antigüedad tardía su número aumenta y transmiten mayor volumen de información, pero sobre todo adquieren relevancia los individuos que las firman, convirtiéndose en un instrumento de autorrepresentación social. Sin embargo, en época posterior estas subscriptiones tardoantiguas se siguen copiando en nuevos manuscritos y pierden su relación inicial con un ejemplar concreto; se transforman en paratextos que contribuyen a dar prestigio, ya no a un libro singular, sino a un autor o una obra.

Nuevo marco para la producción de textos académicos

Este trabajo presenta la reelaboración de un modelo de producción de textos escritos, publicado por el Grupo Didactext en 2003. Se sitúa en un marco sociocognitivo, lingüístico y didáctico, y está concebido desde la interacción de tres dimensiones simbolizadas por círculos concéntricos recurrentes. El primer círculo corresponde al ámbito cultural: las diversas esferas de la praxis humana en las que está inmersa toda actividad de composición escrita. El segundo se refiere a los contextos de producción, de los que forman parte el contexto social, el situacional, el físico, la audiencia y el medio de composición. El tercer círculo corresponde al individuo, en el que se tiene en cuenta el papel de la memoria en la producción de un texto desde el enfoque sociocultural, la motivación, las emociones y las estrategias cognitivas y metacognitivas, dentro de las cuales se conciben seis unidades funcionales que actúan en concurrencia: acceso al conocimiento, planificación, redacción, revisión y reescritura, edición, y presentación oral. La orientación didáctica se interesa por la enseñanza y el aprendizaje de la escritura académica en las aulas, as�� como por la investigación de la escritura en contextos de educación.