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This thesis is an investigation of external biosecurity and its application to risk-based surveillance approaches in the southern Ontario swine industry. In each of two datasets, the best number of groups to describe biosecurity practices was identified, resulting in two groups with high biosecurity standards and one group with low biosecurity standards. Multinomial logistic regression models identified herd density, herd size, and herd type among significant predictors of biosecurity group membership. A map of southern Ontario that can be used as a tool in the risk-based surveillance of contagious swine diseases was developed using geographic information about swine density, and the distribution of herds belonging to the high biosecurity groups. Finally, multiple correspondence analysis examined how individual biosecurity practices form strategies on sow farms. Some practices that are generally considered high-risk were closely associated with other practices that mitigate the risk, suggesting that evaluation of the overall strategy is essential for complete assessment of biosecurity. / The Ontario Ministry of Agriculture, Food and Rural Affairs (under the Emergency Management research theme); Ontario Pork; the Ontario Pork Industry Council's Swine Health Advisory Board; the Natural Sciences and Engineering Research Council of Canada;

This study is about the school teachers’ positions in contemporary Swedish society. In order to grasp the social characteristics of their profession and its transformations it has been important to conduct thorough analyses of the recruitment of teacher students and the recruitment to the teaching professions. The explanations to the findings are mainly based on analyses of how different kinds of assets – such as for example cultural capital and educational capital – are distributed among the students and within the school teacher corps. The data material consists of individual based statistic of all teachers 1978–2008 and all students enrolled in higher education 1977–2009, and of interviews with teachers and students. Regarding theory and methods, the study belongs to the sociological tradition founded by Pierre Bourdieu, which means that capital, strategies and social space are key concepts. The statistical techniques employed comprise mainly of different variants of correspondence analysis as well as logistic regression. As shown in the first part of the thesis an increasing share of the teacher students possess small amounts of acquired school capital, as well as weak resources inherited from their parental home. This change has been especially noticeable within the programmes educating upper secondary school teachers. In the second part, the focus is on the social positions of those upper secondary teachers. The correspondence analyses indicate a cleavage within the profession based on the teachers’ qualification and merits. Teachers richer in educational capital tend to occupy more stable professional positions and are also overrepresented at schools where the pupils feature significant educational and social assets, which in turn further contributes to the density of educational capital. One of the main results is that school teachers have been exposed to two partly opposing processes during the past decades. On the one hand, there has been increasing homogeneity, namely convergences between the employment conditions of different categories of school teachers and between different teacher education programmes. On the other hand, the social divergences within the profession tend to widen. Those gaps have increased over time because of the more differentiated school system and changes in recruitment patterns.

This thesis focuses on changes in the value of educational capital over time. Taking as a point of departure Pierre Bourdieu’s notion of a multidimensional social space, the thesis examines how this value is affected when educational assets—through the democratization of education—are becoming more widespread across this space (i.e. the population). The studies are based on datasets from Statistics Sweden, comprising the complete censuses of 1960 to 1990, LISA-registers, and registers of wealth and income. Different approaches are employed: the use of the Gini-coefficient to catch changes in the distribution of education; comparative models to investigate cohorts at different points in time; and specific multiple correspondence analysis to study the distribution of several assets simultaneously.  Three aspects are explored: the distributions, returns, and uses of education. Firstly, while there is a steady increase in the average number of years of schooling, there is a different pattern in the development of the distribution of education. Three phases were distinguished: one of increasing levels of inequality, one of decreasing inequality, and one in which the inequality levelled out. Secondly, the returns of education have diminished as far as economic gains are concerned, causing a fracture between different social generations, at the same time as the returns in a wider social sense have remained relatively stable. However, the relative stability hides crucial discrepancies. Groups with the lowest level of education are further marginalized and distances between ‘economic’ and ‘cultural’ groups are growing. Thirdly, in their modes of using the educational system, there are glaring differences between the economic elite and the cultural elite, although both utilize prestigious educational institutions as sites of social reproduction. The fundamental difference consists in that exclusive educational strategies are not as necessary to the dominant fraction of the economic elite. Their children are able to choose more freely among the offers of higher education.  The paradoxical development of the value of education is that while the absolute value of educational capital has decreased in general, the differences in relative value persist.

This is a sociological study of the views of officers in the Swedish Army and its Amphibious Forces on tactics in Irregular Warfare (IW), in particular, Counterinsurgency (COIN). IW comprises struggles, where the military weaker part uses an indirect approach with smaller units and integrates the civilian and military dimensions in a violence spectrum including subversion, terrorism, Guerrilla Warfare and infantry actions. IW is the main armed warfare style in insurgencies. COIN is the combined political, military, economic, social and legal actions in counter insurgencies. Data has been collected by means of interviews with almost all (n =43) officers, who were either commanding battalions or rifle and manoeuvre companies while undergoing training for general warfare and international operations. The main theoretical and methodological inspiration is the traditional one for research on social fields, inaugurated by the French sociologist Pierre Bourdieu. The statistical technique used is Multiple Correspondence Analysis. As a background and context base, an inquiry inspired by the Begriffsgechichte (Conceptual History) tradition explores the genesis and development of understandings of the term Irregular Warfare. The research question is outlined as; “how can contemporary Swedish military thought on tactics in Irregular Warfare be characterized using descriptive patterns, mapped in relation to background factors and normative standards? The most significant findings are that there are two main opposing notions separating the officers’ views on tactics in Irregular Warfare: (1) a focus on larger, combat oriented and collectively operating military units versus smaller and larger, more intelligence oriented and dispersed operating units, and (2) a focus on military tasks and kinetic effects versus military and civilian tasks as well as “soft” effects. The distribution of these views can be presented as a two-dimensional space structured by the two axes. This space represents four categories of tactics, partly diverging from normative military standards for Counterinsurgency. This social space of standpoints shows different structural tendencies for background factors of social and cultural character, particularly dominant concerning military backgrounds, international mission experiences and civilian education. Compared to military standards for Counterinsurgency, the two tactical types characterized by a Regular Warfare mind-set stands out as counter-normative. Signs of creative thought on military practice and theory, as well as a still persistent Regular Warfare doxa are apparent. Power struggles might thus develop, effecting the transformation to a broadened warfare culture with an enhanced focus also on Irregular Warfare. The result does not support research results arguing for a convergence of military thought in the European transformation of Armed Forces. The main argument goes beyond tactics and suggests sociological analysis on reciprocal effects regarding strategy, operational art, tactics as well as leadership, concerning the mind-set and preferences for Regular, Irregular and Hybrid Warfare.

国立情報学研究所で電子化したコンテンツを使用している。

国立情報学研究所で電子化したコンテンツを使用している。

Masters of Science / Fifty percent of the world’s tuberculosis population is found in eight countries, one of which is South Africa. Of the eight countries, South Africa is said to be experiencing the highest burden of Tuberculosis, with an estimated incidence of three hundred and twenty-two thousand cases of active Tuberculosis. The Tuberculosis epidemic is driven by the following reasons, firstly poor living conditions which are a result of the wide gap between the rich and the poverty-stricken among some populations, and secondly late presentation to health facilities. Over the years, healthcare programs have made a meaningful impact in identifying patients presenting for Tuberculosis care, a global Tuberculosis report shows an estimated fifty-eight million lives were saved through Tuberculosis treatment and diagnosis, between the years 2000 and 2018. However, strategies to modify risk behaviour need to remain a main priority. In the South African context, it would be important to note the diversity of the individuals experience which is rooted in South African socio-political history and has resulted in high levels of social inequality and disparate socio-economic status groups, as a significant factor when considering the well-being of Tuberculosis infected South Africans. For policy makers to make data-driven decisions, with the aim of lessening the disease burden experienced by the populations they serve. They would require insights from an individual level, this way of measuring well-being requires the participants to rely on their own cognitive judgements and emotional reactions to characterize their well-being. Alatartseva and Barysheva in 2015 claim that subjective well-being is an internal evaluation of well-being, relating to one’s spiritual, personal characteristics and features. This approach is fitting since behavioural data is dynamic and relative as it tends to differ across populations and is often altered radically in short periods. Despite global advances in access to Tuberculosis treatment, Tuberculosis is the leading cause of death in adults with Human Immunodeficiency Virus and the main contributor to antimicrobial resistance. This gap can be bridged by an understanding of the behavioural aspects tied to Tuberculosis infection. There is a lack of adequate South African literature on Tuberculosis infection and health related well-being. The current study notes and compares, the diversity of life satisfaction experience between participants from different socio-demographic status groups across South Africa, bringing forth the most influential variables on well-being. This paper explored the possible factors of subjective well-being in the Tuberculosis infected South African population. Data from the National Income Dynamics Study 2017 was used, with a focus on the Tuberculosis diagnosed sub-population across all nine provinces in South Africa. The study sample consisted of forty-four individuals who were measured against the following variables: age; gender; population group; place of residence in 1994; labour market participation, education; health; emotional health and well-being and social cohesion. The study employed, Multiple Correspondence Analysis to identify significant variables associated with the well-being of Tuberculosis infected individuals. The results show that the participants of African lineage presented with the lowest level of subjective well-being, followed by the Coloured population which was more likely to have a smoking habit to further decrease their level of well-being. Gender was a significant contributor to well-being with female participants reporting an overall lower level of subjective well-being compared to their male counterpart. Furthermore, those co-infected with Tuberculosis and Human immunodeficiency Virus while poverty-stricken presented with the lowest possible level as they are likely to be depressed, have a weakened immune system and experiencing medication non-adherence.

Electric Vehicles is regarded as an important solution for emission reduction. But, the adoption to it is still a problem in many countries. With survey data containing demographic and attitude factors of respondents, this paper proposes two classification models: logistic regression and random forest using the Multiple Correspondence Analysis (MCA) as an intermediate step to identify the factors affecting the willingness of electric vehicles purchase. The analysis shows that the addition of MCA does enhance the explanatory power while it takes a low cost on prediction performance, and the results reveal that characteristics such as frequency of using modern transport services, car-sharing subscription, living place, mode of frequent trip do have a significant impact on EV purchases.

Research on creativity examines both the processes and products of creativity. An important avenue for analyzing creativity is by means of spontaneous improvisation, although there are major challenges to characterizing the output of improvisation due to the variable nature of the products. In the case of musical improvisation, structural approaches have used methodologies like musical transcription to look for recurring or variable musical features across a corpus of improvisations, while creativity-centered approaches have had experts make ratings of the novelty of the improvisations. One important concept missing from many analyses of improvisation is the idea that the products of a corpus can be organized into a series of “style types”, where each type differs from others in certain key structural features. Clustering methods provide a reliable quantitative means of examining the organization of style types within a diverse corpus of improvisations. In order to look at the potential of such methods, we examined a corpus of 72 vocal melodic improvisations produced by novice improvisers. We first classified the melodies acoustically using a multidimensional musical-classification scheme called CantoCore, which coded the melodies for 19 distinct features of musical structure. We next employed the simultaneous use of multiple correspondence analysis (MCA) and k-means cluster analysis with the data, and obtained three relatively discrete clusters of improvisations. Stylistic analysis of these clusters revealed that they differed in key features related to phrase structure and rhythm. Cluster analyses provide a promising means of describing and analyzing the products of creativity, including variable structures like spontaneous improvisations. / Thesis / Master of Science (MSc)