Ce travail de recherche propose une approche croisée de la sociolinguistique et de la didactique des langues pour explorer l’enseignement des langues, et en particulier de l’anglais, du tamoul, de l’hindi et du français, en contexte indien. Il vise la compréhension d’enjeux globaux sur la gestion éducative du plurilinguisme en Inde tout en s’appuyant sur une étude de cas localisée à Chennai et Poudouchéry, dans le sud de l’Inde. Le questionnement retenu porte sur les liens de cohérence existant entre la situation sociolinguistique indienne, les politiques linguistiques éducatives et les pratiques et représentations des enseignants en rapport avec les langues et le plurilinguisme. La mise en relation de ces différents niveaux d’analyse s’opère par le biais d’une démarche de contextualisation permettant de mettre en évidence certaines spécificités du plurilinguisme social et individuel en Inde. Cette recherche questionne plus spécifiquement la place du français dans le panorama de l’enseignement des langues en Inde, ainsi que les modalités de son enseignement et les représentations qui y sont associées. L’étude des pratiques et représentations des enseignants de langue a fait l’objet d’une enquête de terrain menée dans des établissements scolaires de Chennai, à l’Alliance française de Madras (Chennai) et au Lycée français de Pondichéry (Poudouchéry). La réflexion menée débouche sur quelques perspectives pour une meilleure reconnaissance des pratiques plurilingues par l’école, et une véritable prise en compte des langues et variétés présentes dans l’environnement social. / The present work proposes a cross-approach of sociolinguistics and didactics to explore the teaching of languages, especially English, Tamil, Hindi and French, in the Indian context. The study aims at a better understanding of issues on educational management of multilingualism in India while relying on a case study located in Chennai and Puducherry (South India). The inquiry focuses on consistent links between the sociolinguistic situation of India, language education policies, and practices and perceptions of teachers in relation to languages and multilingualism. Linking these different levels of analysis occurs through a process of contextualisation that highlights some specificities of both social and individual multilingualism in India. The research questions more specifically the place of French in the panorama of language teaching in India, as well as related teaching methods and representations. The study of practices and representations of language teachers has been done through a field survey in schools in Chennai, at the Alliance française of Madras (Chennai) and at the Lycée français of Puducherry. This analysis leads to a few suggestions for a better recognition of multilingual practices by the school, so that languages and varieties of the social environment would be taken into account.

Cette thèse propose une étude sur l’Abhinayadarpaṇa, « le Miroir du Geste », de Nandikeśvara, traité sanskrit médiéval traitant de l’art de l’expression au moyen des gestes. Ce texte est aujourd’hui une référence théorique particulièrement populaire dans la pratique du bharatanāṭyam, la danse « classique » du Tamil-Nadu (Sud-Est de l’Inde), notamment depuis le tournant dit « revivaliste » dans les années 1930. Conjuguant les approches philologique et ethnographique, cette étude propose une analyse des différentes formes et modes d’appropriation de ce texte. L’étude et la traduction du texte sanskrit, l’analyse des phénomènes d’intertextualité avec d’autres traités sanskrits et des différentes « éditions-traductions » anglaises, ainsi que la présentation de l’usage actuel de ce texte par les praticiens de bharatanāṭyam (d’après les données d’un terrain d’un an à Chennai et à Pondichéry, trois séjours de 2013 à 2016) permettront, d’une part, d’appréhender le caractère polymorphe et dynamique de ce traité dont les formes reflètent les pratiques autant qu’elles les normalisent, et, d’autre part, de dégager une pratique du texte, de l’Inde ancienne à l’Inde actuelle, prenant la forme de commentaires discursifs et gestuels. / This study focuses on Nandikeśvara’s Abhinayadarpaṇa, « The Mirror of Gesture », a medieval Sanskrit treatise about the art of gestural expression. Today this text is a very popular theoretical reference in the bharatanāṭyam milieu, the classical dance of Tamil Nadu (South-East India), since the so-called 1930s revivalism. Through philological and ethnographic approaches, this study aims at analysing the various forms and ways of appropriation of this text. The study and translation of the Sanskrit text, the analysis of intertextuality with other Sanskrit treatises and of various English « edition-translations », and the study of the contemporary use of the text by bharatanāṭyam practitioners (using original data from one year of fieldwork in Chennai and Pondicherry, 2013 to 2016) will make it possible, on the one hand, to explore the polymorphic and dynamic aspects of this treatise, whose forms both reflect and normalise practices - and, on the other hand, to distinguish a text-practice, from Ancient India to the present day, which takes the shape of a discursive and gestural commentaries.

Cooking stove technologies are crucial for meeting household energy needs, yet many lack access to clean solutions, leading to Household Air Pollution (HAP) and associated health risks. There is an urgent need to understand and mitigate environmental and health challenges posed by traditional stoves burning solid fuels like fuelwood. This thesis examines the environmental and human health impacts of different cooking fuel options using a Life Cycle Assessment (LCA) approach. A case study is developed in the state of Tamil Nadu in India, considering different cooking fuel mix scenarios and sustainable transition in the sector. Key impact categories such as Global Warming Potential (GWP), Fine Particulate Matter Formation, and Human Health are examined. Findings reveal persistent challenges, particularly with solid fuels like firewood, contributing to HAP and adverse health effects. Transitioning to renewable energy sources such as Biogas and Electricity is crucial for mitigating environmental impacts and improving public health outcomes. Eliminating firewood in the Sustainable scenario fuel mix could result in a 43% reduction in GWP, an 87.5% reduction in delicate particulate matter, and a 75% improvement in human health. This study provides insights for policymakers to develop interventions promoting sustainable cooking practices and enhancing community well-being in Tamil Nadu and beyond. / Köksspis-teknologier är avgörande för att tillgodose hushållens matbehov, men miljontals saknar tillgång till rena matlagningslösningar, vilket leder till hushållsluftföroreningar (HAP) och associerade hälsorisker. Det finns ett brådskande behov av att förstå och mildra miljö- och hälsoutmaningar som traditionella spisar, som använder fasta bränslen såsom ved, innebär. Denna avhandling undersöker miljö- och hälsoeffekterna av olika alternativ för matlagningsbränsle med en livscykelanalys (LCA)-ansats. En fallstudie har utvecklats i delstaten Tamil Nadu i Indien, där olika scenarier för blandning av matlagningsbränslen och en hållbar övergång inom sektorn övervägs. Viktiga faktorer som global uppvärmningspotential (GWP), bildning av fint partikulärt material och människors hälsa undersöks noggrant. Resultaten avslöjar ihållande utmaningar, särskilt med fasta bränslen som ved, som bidrar till HAP och negativa hälsoeffekter. Övergången till förnybara energikällor som biogas och elektricitet är avgörande för att mildra miljöpåverkan och förbättra folkhälsan. Att eliminera ved i bränslemixen i det hållbara scenariet kan leda till en 43 % minskning av GWP, en 87,5 % minskning av fintpartikulärt material, och en 75 % förbättring i mänsklig hälsa. Genom att utnyttja insikterna från denna studie kan beslutsfattare och intressenter utveckla riktade insatser för att främja hållbara matlagningspraxis och förbättra välbefinnandet för samhällen i Tamil Nadu och vidare.

The Kukkal basin, Tamil Nadu, India, receives most of its rain from the southwest monsoon (SWM). A sediment core from Kukkal Lake preserves a continuous sediment record from the early-Holocene to present (9000 yr BP to present). The present lake is situated at an elevation of similar to 1887m a.s.l., in a small basin that appears to have alternated between a and wetland depositional environment. Climate proxies, including sediment texture, total organic carbon (TOC), total nitrogen (TN), C/N, pollen and geochemical composition indicate a steady progression to wetter conditions, with two stepwise changes at about 8000, and between 3200 and 1800 yr BP. The change at 8000 yr BP appears to correspond to a brief (100-150years) dry spell recorded elsewhere in India. The change at 3200-1800 yr BP consisted in a rapid intensification of the SWM, and may correlate with the initiation of the Roman Warm Period'. There is no clear evidence of changes at the times of the Medieval Warm Period' (MWP') and the Little Ice Age' (LIA'). The C/N ratio of the sediments ranges from 14.02 to 8.31, indicating that the organic matter originated from a mixture of lacustrine algae, vascular and terrestrial plants. Chemical weathering indices (Chemical Index of Alteration (CIA), Chemical Index of Weathering (CIW), and Plagioclase Index of Alteration (PIA)) are consistent with extreme silicate weathering. Pollen data show a development from savanna vegetation prior to about 8000 yr BP, followed by grassland with palms, the appearance of ferns just prior to 3200 yr BP and the establishment of the tropical humid forest between 3200 and about 1800 yr BP.

Introduction: The literature review indicated that oral health is a serious health issue among Indian school adolescents. In India, less than 5% of adolescents have access to organised public dental health services in order to identify and treat dental caries at an early stage. Oral health literacy is important for adolescents to prevent and manage dental caries in their permanent teeth. Currently, there is no formal oral health education available in both the primary and secondary level school curriculum in Tamil Nadu. Objective: This thesis was conducted to collect baseline data to measure the epidemiology of dental caries and the level of oral health literacy among adolescents in rural and urban schools of Tamil Nadu, India. Methods: Oral health literacy and the epidemiology of dental caries were measured in 974 adolescent school students (12-15 year-olds) from both rural and urban areas of Tamil Nadu, India. There were three research questions answered in this thesis using a cross-sectional descriptive correlational quantitative study design. The first research question was addressed by measuring the Decayed, Missing and Filled teeth index (DMFT) using the WHO oral health survey method. The second research question was addressed by measuring the oral health literacy of 974 adolescent participants using a self-administered questionnaire developed for this study. The third research question was addressed by examining the association between the severity of dental caries (question 1) and oral health literacy (question 2). Results: The oral health survey indicated that prevalence of dental caries among adolescents in rural and urban parts of Tamil Nadu was 61.4% with an average DMFT score of 2.03. Multiple regression analyses indicated factors such as gender, age, mother’s education, type of schools and community/caste as significant predictors of dental caries. This is the first study to assess the impact of community on oral health literacy and status of adolescents. Almost 92% of participants reported that they had never been to a dentist. In total, 1980 teeth were affected and 98.6% (1953) affected teeth were decayed and not filled. The Cronbach’s alpha score (0.651) demonstrated the developed questionnaire had good internal consistency. In total, 35% of participants had poor oral health literacy (OHL) skills and only 8.3% of participants had good OHL skills to prevent dental caries. Parent’s education, gender and community/caste were identified as significant predictors of OHL in the regression analysis. A strong negative association between oral health literacy scores and dental caries prevalence and severity was identified in the study. Conclusion: The current study is the first to find an association between oral health literacy and dental caries in an adolescent population both in international and Indian literature. The prevalence of dental caries was decreased and severity of dental caries was increased when compared to previous research in Tamil Nadu. This result implies an imbalance in availability of oral health services in Tamil Nadu, India. The study results also imply that the majority of the study population had poor or moderate oral health literacy to prevent and manage dental caries. Females, Scheduled Caste and Tribes attending public schools in rural areas were identified as the more vulnerable populations to get affected by dental caries due to their poor oral health literacy. Oral health policies should be targeted to these adolescent populations in the Tamil Nadu region. Improving oral health literacy education in the school and pre-school curriculum could help to manage oral health in adolescents.

Originally presented as author's Thesis--Uppsala Universitet, 2000. / Includes bibliographical references (p. 384-398).

Originally presented as author's Thesis--Uppsala Universitet, 2000. / Includes bibliographical references (p. 384-398).

Ce travail de recherche propose une approche croisée de la sociolinguistique et de la didactique des langues pour explorer l'enseignement des langues, et en particulier de l'anglais, du tamoul, de l'hindi et du français, en contexte indien. Il vise la compréhension d'enjeux globaux sur la gestion éducative du plurilinguisme en Inde tout en s'appuyant sur une étude de cas localisée à Chennai et Poudouchéry, dans le sud de l'Inde. Le questionnement retenu porte sur les liens de cohérence existant entre la situation sociolinguistique indienne, les politiques linguistiques éducatives et les pratiques et représentations des enseignants en rapport avec les langues et le plurilinguisme. La mise en relation de ces différents niveaux d'analyse s'opère par le biais d'une démarche de contextualisation permettant de mettre en évidence certaines spécificités du plurilinguisme social et individuel en Inde. Cette recherche questionne plus spécifiquement la place du français dans le panorama de l'enseignement des langues en Inde, ainsi que les modalités de son enseignement et les représentations qui y sont associées. L'étude des pratiques et représentations des enseignants de langue a fait l'objet d'une enquête de terrain menée dans des établissements scolaires de Chennai, à l'Alliance française de Madras (Chennai) et au Lycée français de Pondichéry (Poudouchéry). La réflexion menée débouche sur quelques perspectives pour une meilleure reconnaissance des pratiques plurilingues par l'école, et une véritable prise en compte des langues et variétés présentes dans l'environnement social.

The thesis offers a comparative analysis of language policies in the EU and India. Specifically, it examines the role of power and ideology in the formulation and implementation of language policies. The need for this thesis emerged in view of the lack of comprehensive comparative analyses of language policies which leads to epistemological gaps, including one-dimensional narratives of language policies, and theories which are lacking in precision. In light of these gaps, the thesis undertakes a comprehensive investigation of policies in eight policy domains (administration, legal safeguards for minority languages, law, education, media, healthcare, business, and social welfare) in the EU and India and in two case studies each from the EU (Luxembourg, Wales), and India (Manipur, Tamil Nadu), chosen on the basis of maximum and minimum deviation from the EU's and Indian policies. The study examines policy texts (statutes on language use in these polities), and contexts which concern the historical and socio-political factors underpinning language policies. The thesis makes three important contributions. First, it marks a break from the prevalent understanding of power in macro-level policymaking. Research to date has tended to view power as a monolithic entity, while this thesis offers evidence that power and ideology are not uniform across policy domains. Second, it bridges the text-context divide of language policy research by conducting an investigation of policy-related legislation, and highlighting the importance of texts in understanding language policies, as they reflect the changes in power structures through time. Third, the thesis proposes a new analytical concept for investigating language policies, Categories of Differentiation (COD). Categories of Differentiation refer to the sets of binaries which underpin language policies in the aforementioned case studies. These binaries include the hills-valley divide (Manipur), the Dravidian-Aryan divide (Tamil Nadu), and the autochthonous-allochthonous divide (EU) among others. Language policies have often been described as 'multilayered', and COD offer a systematic approach to exploring these multiple layers. Overall, the thesis demonstrates how comparative research aids understanding of language policies, and sets out a possible theoretical framework for conducting it.

La question de la diaspora tamoule est intimement liée à celle de l'existence d'une communauté à l'étranger prise en étau par une double ambivalence : entre ancrage et mobilité et entre ouverture et fermeture. La recherche se propose d'aborder cette question en revenant sur les conditions d'émergence d'une identité diasporique qui fait fi des clivages de toute sorte. Sur la base d'une série d'entretiens et de questionnaires prenant corps dans une ethnologie multisite, il s'agit plus largement de comprendre ce que signifie être tamoul en France et comment se structure cette expérience. La présentation des différentes trajectoires spatio-temporelles, d'une part, permet de révéler l'hétérogénéité de la catégorie diaspora tamoule, composée de trois segments dont les conditions d'émergence sont liées à des cadres migratoires divergents, d'autre part met en évidence l'émergence de Paris et plus généralement de l'Île-de-France comme pôle important de son fonctionnement.