Compositional data analysis of vote shares in the 2001 Australian Federal election

First application of compositional data analysis techniques to Australian election data

Regression analysis of compositional data when both the dependent variable and independent variable are components

It is well known that regression analyses involving compositional data need special attention because the data are not of full rank. For a regression analysis where both the dependent and independent variable are components we propose a transformation of the components emphasizing their role as dependent and independent variables. A simple linear regression can be performed on the transformed components. The regression line can be depicted in a ternary diagram facilitating the interpretation of the analysis in terms of components. An exemple with time-budgets illustrates the method and the graphical features

Statistical Analysis of Eco-Toxicologic Data of Mammals from a Polluted Area

Several eco-toxicological studies have shown that insectivorous mammals, due to their feeding habits, easily accumulate high amounts of pollutants in relation to other mammal species. To assess the bio-accumulation levels of toxic metals and their in°uence on essential metals, we quantified the concentration of 19 elements (Ca, K, Fe, B, P, S, Na, Al, Zn, Ba, Rb, Sr, Cu, Mn, Hg, Cd, Mo, Cr and Pb) in bones of 105 greater white-toothed shrews (Crocidura russula) from a polluted (Ebro Delta) and a control (Medas Islands) area. Since chemical contents of a bio-indicator are mainly compositional data, conventional statistical analyses currently used in eco-toxicology can give misleading results. Therefore, to improve the interpretation of the data obtained, we used statistical techniques for compositional data analysis to define groups of metals and to evaluate the relationships between them, from an inter-population viewpoint. Hypothesis testing on the adequate balance-coordinates allow us to confirm intuition based hypothesis and some previous results. The main statistical goal was to test equal means of balance-coordinates for the two defined populations. After checking normality, one-way ANOVA or Mann-Whitney tests were carried out for the inter-group balances

Scalable real-time crisis mapping and analytics of social media streams for disaster management and breaking news

Real-time geoparsing of social media streams (e.g. Twitter, YouTube, Instagram, Flickr, FourSquare) is providing a new 'virtual sensor' capability to end users such as emergency response agencies (e.g. Tsunami early warning centres, Civil protection authorities) and news agencies (e.g. Deutsche Welle, BBC News). Challenges in this area include scaling up natural language processing (NLP) and information retrieval (IR) approaches to handle real-time traffic volumes, reducing false positives, creating real-time infographic displays useful for effective decision support and providing support for trust and credibility analysis using geosemantics. I will present in this seminar on-going work by the IT Innovation Centre over the last 4 years (TRIDEC and REVEAL FP7 projects) in building such systems, and highlights our research towards improving trustworthy and credible of crisis map displays and real-time analytics for trending topics and influential social networks during major news worthy events.

"Thematically Analysing Social Network Content During Disasters Through the Lens of the Disaster Management Lifecycle" & "Investigating Similarity Between Privacy Policies of Social Networking Sites as a Precursor for Standardization"

Abstract 1: Social Networks such as Twitter are often used for disseminating and collecting information during natural disasters. The potential for its use in Disaster Management has been acknowledged. However, more nuanced understanding of the communications that take place on social networks are required to more effectively integrate this information into the processes within disaster management. The type and value of information shared should be assessed, determining the benefits and issues, with credibility and reliability as known concerns. Mapping the tweets in relation to the modelled stages of a disaster can be a useful evaluation for determining the benefits/drawbacks of using data from social networks, such as Twitter, in disaster management.A thematic analysis of tweets’ content, language and tone during the UK Storms and Floods 2013/14 was conducted. Manual scripting was used to determine the official sequence of events, and classify the stages of the disaster into the phases of the Disaster Management Lifecycle, to produce a timeline. Twenty- five topics discussed on Twitter emerged, and three key types of tweets, based on the language and tone, were identified. The timeline represents the events of the disaster, according to the Met Office reports, classed into B. Faulkner’s Disaster Management Lifecycle framework. Context is provided when observing the analysed tweets against the timeline. This illustrates a potential basis and benefit for mapping tweets into the Disaster Management Lifecycle phases. Comparing the number of tweets submitted in each month with the timeline, suggests users tweet more as an event heightens and persists. Furthermore, users generally express greater emotion and urgency in their tweets.This paper concludes that the thematic analysis of content on social networks, such as Twitter, can be useful in gaining additional perspectives for disaster management. It demonstrates that mapping tweets into the phases of a Disaster Management Lifecycle model can have benefits in the recovery phase, not just in the response phase, to potentially improve future policies and activities. Abstract2: The current execution of privacy policies, as a mode of communicating information to users, is unsatisfactory. Social networking sites (SNS) exemplify this issue, attracting growing concerns regarding their use of personal data and its effect on user privacy. This demonstrates the need for more informative policies. However, SNS lack the incentives required to improve policies, which is exacerbated by the difficulties of creating a policy that is both concise and compliant. Standardization addresses many of these issues, providing benefits for users and SNS, although it is only possible if policies share attributes which can be standardized. This investigation used thematic analysis and cross- document structure theory, to assess the similarity of attributes between the privacy policies (as available in August 2014), of the six most frequently visited SNS globally. Using the Jaccard similarity coefficient, two types of attribute were measured; the clauses used by SNS and the coverage of forty recommendations made by the UK Information Commissioner’s Office. Analysis showed that whilst similarity in the clauses used was low, similarity in the recommendations covered was high, indicating that SNS use different clauses, but to convey similar information. The analysis also showed that low similarity in the clauses was largely due to differences in semantics, elaboration and functionality between SNS. Therefore, this paper proposes that the policies of SNS already share attributes, indicating the feasibility of standardization and five recommendations are made to begin facilitating this, based on the findings of the investigation.

Analysis of psychological aspects of Lovemarks formation

El presente trabajo es una revisión de literatura que busca contribuir al entendimiento de los procesos psicológicos subyacentes en la Teoría de Roberts sobre Lovemarks que, dentro del campo del marketing, ha buscado reemplazar la idea que se tiene sobre las marcas. La primera parte proporciona una introducción de lo que ha sido la evolución de las marcas desde una perspectiva psicológica y de mercadeo. En la segunda parte se explica la teoría de Lovemarks haciendo énfasis en sus componentes: el eje amor/respeto, las características de misterio, sensualidad e intimidad. Adicionalmente, se soporta esta teoría a través de literatura complementaria y casos de aplicación exitosos. La tercera parte, corresponde a la identificación y análisis de los procesos y aspectos psicológicos que explican la formación de un Lovemark: percepción, memoria, motivación individual y social y emoción. La cuarta y última parte contiene las conclusiones e implicaciones en la formación de la relación entre el consumidor y una marca.

Conceptual Rapprochement and the Analysis of the Historical, Normative and Jurisprudential Treatment of the Rural Workers, as Regards the Need for Special Protection

This article aims to present an approach to the issue of farm or rural zone workers, including a labour law study of agrarian legal decisions, so as to demonstrate their importance in respect to social, economic and cultural rights in Colombia. The study will serve to illustrate through the history, the applicable law and the jurisprudence, the different ways in which farmers have been treated from the time of the origin until the arrival of modern systems of industrialization. It calls into question the effectiveness of existing laws and the role of the courts, in spite of globalization, to maintain the minimum rights and guarantees of farm workers who are considered to be a vulnerable population. In conclusion, this study seeks to illustrate the current role of the Labor law and the National Health Service in the area of demonstrating of the existence or absence of mechanisms to protect workers in rural areas and the need to create some mechanisms that involve social justice given its prime importance in the Constitution of 1991.

Conceptual and critical analysis of the Implicit Leadership Theory

The purpose of this essay is to present a conceptual and critical analysis of the Implicit Leadership Theory (ILT). The objectives are: 1) explaining the main concepts of the ILT; 2) explaining the main processes of the ILT; 3) identifying constructivist assumptions in the ILT; 4) identifying constructionist assumptions in the ILT, and 5) analyzing critically theoretical assumptions of the ILT. At analyzing constructivism and constructionism assumptions in the ILP, the constructivist leadership and the constructionist leadership are described. At the end, a critical analysis of TLP ILT and conclusions are presented.

The persistent colombian conflict bubnational analysis of the duration of violence

The growing empirical literature on the analysis of civil war has recently included the study of conflict duration at the cross-country level. This paper presents, for the first time, a within-country analysis of the determinants of violence duration. I focus on the experience of the Colombian armed conflict. While the conflict has been active for about five decades, local violence ebbs and flows and areas experiencing continuous conflict coexist with places that have been able to resile and where violence is mostly absent. I examine a wide range of factors potentially associated with violence duration at the municipal level, including scale variables, geographical conditions, economic and social variables, institutions and state presence, inequality, government intervention, and victimization variables. I characterize a few variables robustly correlated with the persistence of localized conflict, both across specifications and using different econometric models of duration analysis.

First verbal productions of a bilingual child learning Basque and Spanish simultaneously : analysis of the noun phrase. 'Primeras producciones verbales de niños bilingües aprendiendo castellano y euskera simultáneamente : análisis de los sustantivos en la frase'.

Estudiar la evolución del lenguaje en niños bilingües que hablan euskera y castellano. Hipótesis: se encontrarán pocas marcas gramaticales en las frases. En euskera aparecerán ciertos sufijos de declinación; se espera encontrar el determinante 'A', marca de los casos locativo y posesivo y posiblemente algunos dativos. En castellano se espera no encontrar marcas gramaticales con preposiciones y artículos y sí en los casos locativo y posesivo. No se hallarán marcas formales y sí algunas construcciones lingüísticas por categorías ya que parece que los sistemas gramaticales funcionan de manera autónoma. Un niño en su período entre un año y once meses hasta dos años y tres meses, que se desenvuelve en euskera en el ambiente familiar y en castellano en su ambiente social. Se trata de un estudio descriptivo que está dividido en cuatro apartados: relato del ambiente familiar y social en el que se desenvuelve el niño. Diferencias entre el castellano y el euskera. Teorías que explican este tipo de problemas. Análisis de datos recogidos en las cintas. Las marcas gramaticales en castellano y euskera se clasifican en dos grupos: prefijos y unidades aisladas que preceden al nombre como artículos, pseudoartículos. Sufijos, incluyendo las marcas de casos, y calificativos. Grabaciones en vídeo sobre la producción en castellano y en euskera en situaciones familiares espontáneas. Cada sesión de grabación dura 30 minutos para cada idioma. Análisis de los datos recogidos en la grabación después de haber realizado la transcripción. En este caso, el artículo castellano no aparece inmediatamente. Los artículos indefinidos son más frecuentes que los definidos. Las formas masculinas predominan sobre las femeninas. Los artículos en castellano y los nombres en castellano y euskera son las unidades gramaticales más numerosas. Hay pocos ejemplos de sufijos locativos y posesivos. Aparecen pocas marcas de plural en los nombres. Se usan otras cuantificaciones como números, palabras 'otro', 'más'. A este nivel gramatical no hay fusión de marcas de los dos idiomas: no hay terminaciones 'A' en palabras castellanas usadas en contexto hispano y no hay artículos castellanos delante de nombres vascos usados en contexto vasco.

An analysis of the moderating effects of age in the acceptance of Learning Management Systems. 'Análisis del efecto moderador de la edad en la aceptación de sistemas e-learning LMS'.

Resumen basado en el de la publicación

Assessment and detection of peer-bullying through analysis of the group context

Resumen tomado de la publicaci??n

Meta-analysis of the effectiveness of school substance abuse prevention programs in Spain

Resumen tomado de la publicaci??n

An analysis of the move to Inclusive Education in Canada : what works

Incluye anexo

A qualitative analysis of immigrant population health practices in the Girona Healthcare Region

The research we present here forms part of a two-phase project - one quantitative and the other qualitative - assessing the use of primary health care services. This paper presents the qualitative phase of said research, which is aimed at ascertaining the needs, beliefs, barriers to access and health practices of the immigrant population in comparison with the native population, as well as the perceptions of healthcare professionals. Moroccan and sub-Saharan were the immigrants to who the qualitative phase was specifically addressed. The aims of this paper are as follows: to analyse any possible implications of family organisation in the health practices of the immigrant population; to ascertain social practices relating to illness; to understand the significances of sexual and reproductive health practices; and to ascertain the ideas and perceptions of immigrants, local people and professionals regarding health and the health system. Methods: qualitative research based on discursive analysis. Data gathering techniques consisted of discussion groups with health system users and semi-structured individual interviews with healthcare professionals. The sample was taken from the Basic Healthcare Areas of Salt and Banyoles (belonging to the Girona Healthcare Region), the discussion groups being comprised of (a) 6 immigrant Moroccan women, (b) 7 immigrant sub-Saharan African women and (c) 6 immigrant and native population men (2 native men, 2 Moroccan men and 2 sub-Saharan men); and the semi-structured interviews being conducted with the following healthcare professionals: (a) 3 gynaecologists, (b) 3 nurses and 1 administrative staff. Results: use of the healthcare system is linked to the perception of not being well, knowledge of the healthcare system, length of time resident in Spain and interiorization of traditional Western medicine as a cure mechanism. The divergences found among the groups of immigrants, local people and healthcare professionals with regard to healthcare education, use of the healthcare service, sexual and reproductive healthcare and reticence with regard to being attended by healthcare personnel of the opposite sex demonstrate a need to work with the immigrant population as a heterogeneous group. Conclusions: the results we have obtained support the idea that feeling unwell is a psycho-social process, as it takes place within a specific socio-cultural situation and spans a range of beliefs, perceptions and ideas regarding symptomology and how to treat it