La géographie des groupes humains résulte d’événements historiques culturels et environnementaux. Notre démarche consiste à identifier des relations cultures/environnements dans des populations actuelles ou historiques bien documentées pour ensuite déceler l’éventuelle présence de phénomènes similaires dans des populations anciennes dont seuls les vestiges archéologiques sont connus. Après avoir passé en revue différents concepts permettant de décrire l’espace écologique occupé par une espèce (ou une population déterminée par un trait spécifique), nous déduisons que le concept de niche est idéal pour mesurer les facteurs environnementaux qui peuvent influencer l’établissement d’une culture en un lieu à une période donnée. Afin d’apprécier les distributions géographiques potentielles de cultures du présent et du passé, nous utilisons la modélisation de niches écoculturelles (ECNM). L’ECNM utilise des algorithmes prédictifs ainsi que des données d’occurrences et environnementales afin d’examiner les possibles influences des facteurs environnementaux dans les trajectoires évolutives des cultures. Nous présentons des résultats issus d’une optimisation de l’ECNM qui consiste à obtenir des données environnementales à très hautes résolutions spatiale et temporelle puis à combiner des prédictions de niche en tenant compte des performances des différents algorithmes prédictifs utilisés. La validité de la méthode que nous proposons est assurée par la fiabilité des occurrences que nous utilisons dans nos référentiels actualiste et historique. Enfin l’analyse statistique de plusieurs niches contemporaines, ou se succédant dans plusieurs phases climatiques, nous permet de les positionner dans l’espace écologique et de discuter de diversité culturelle, de risque écologique, de compétition, de dynamique évolutive et de peuplement. / The geographic distribution of human populations is the result of both historical contingency and environmental factors. This study identifies culture-environment relations for well-documented present-day and historic populations in order to evaluate whether the same phenomena operated inprehistoric contexts, which are only known from archaeological sites. After reviewing the different concepts used to describe the ecological space occupied by a species (or specific population), it is shown that the niche concept is well-suited for identifying and measuring environmental factors that can influence the distribution of a culture at a particular place and time. In order to better understand the potential distributions of present and past cultures, this study employs the method known aseco-cultural niche modeling (ECNM). ECNM uses predictive algorithms along with occurrence and environmental data in order to examine the possible influences of environmental factors on cultural trajectories. The results presented here are derived from an optimized ECNM approach that permits one to obtain high-resolution environmental data, and that also combines niche predictions by taking into account the performance of the various employed predictive algorithms.The effectiveness of this approach is ensured by the use of reliable occurrence data for both the present-day and historic case studies. Finally, statistical evaluations of multiple contemporaneous niches, as well as successive ones across multiple climatic phases, allow them to be placed in ecological space and examined with respect to cultural diversity, ecological risk, competition, and evolutionary and population dynamics.

Il ressort fréquemment des discours d’acteurs qu’une rencontre sportive n’est jamais gagnée d’avance et que partant, il n’y a pas, ou plus, de petites équipes, les adversaires étant toujours à « prendre au sérieux ». Si le football était un joueur de son propre sport, il ne dérogerait pas à ces aphorismes. Il l’aurait pu quand, accompagnant les débuts de la mondialisation, il marquait de son empreinte la géographie mondiale et nationale des foot-ball et dominait ses concurrents en termes de possession de l’espace. Mais le champ sportif s’est aujourd’hui diversifié en raison de la pluralité de ses pratiques comme celle de leurs modes d’organisation, et il lui apporte de nouveaux opposants ou renforce ses « vieux » challengeurs. De ce fait, un nouveau match a commencé, dont la géographie s’est emparée pour le commenter à sa main : c’est elle qui décide du résultat final, par ses concepts, ses méthodes et ses outils. La comparaison des diffusions, des logiques de localisation et des stratégies géomarketing du football, du futsal, du beach soccer et du football indoor se mue de la sorte en autant d’actions, d’occasions, de phases de jeu qui animent la rencontre de ces cultures sportives « balle au pied ». Celles-ci ne se jouent pas partout, ni au même endroit : leurs terrains ne se confondent pas. Et c’est à l’échelle urbaine que la tension de ce match atteint son paroxysme. Avec l’agglomération lilloise pour toile de fond, cette étude témoignera ainsi de l’implantation différenciée, hiérarchisée et segmentée des foot-ball dans l’espace géographique. / There are some lessons that can be taken out from discussions between a football game participants: no game is a sure thing, there are no small teams anymore, and you can’t underestimate the value of your opponents. If football was a player, he wouldn’t dismiss these aphorisms. Not anymore, because the time has passed when it could rely on its supremacy to turn away from these truths. As a pioneering sport, football has moved along with the early stages of globalisation and has heavily influenced the geography of worldwide and national football codes today: in terms of possession, football reigns over its competitors. However, the diversity of the field of sports, impacted by the variety of its activities and their organisations brings new contenders or strengthen its former challengers. In this way, geography finds an easy subject to discuss. With its concepts, methods and tools, geography decides on the final result. This contest is heightened by actions, big chances or plays which turned into expansion, location and geomarketing strategy of football, futsal, beach soccer and five-a-side football. These sporting cultures don’t play everywhere, neither do they play in the same place: their fields don’t collide. On a smaller scale, that of a city, the game’s tension reaches its climax. Focussed on metropolitan Lille, this study will support differentiated, ranked and segmented football codes in geographic space.

Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacognosy Student: Veronika Vargovčíková Supervisor: PharmDr. Marie Kašparová, Ph.D. Title of diploma thesis: Production of podophyllotoxin by plant tissue cultures of Juniperus virginiana Key words: Juniperus virginiana, callus cultures, suspension cultures, podophyllotoxin Elicitor and precursor adding method can be used to enhance the production of secondary metabolites in explantate cultures. This master's thesis is focused on the evaluation of the effects of biotic elicitor (salicylic acid) and phenylpropanoid metabolism precursor (cinnamic acid) on podophylotoxin production in Juniperus virginiana (var. 'Glauca' and 'Hetzii') suspension cell culture. Suspension cultures were cultivated on Schenk and Hildebrandt medium at 25řC and circadial period of 16 hours light and 8 hours dark. Medium contained 15 mg.l-1 ascorbic acid and growth regulators 3.0 mg.l-1 , α-naphthaleneacetic acid, 0.2 mg.l-1 kinetin. The effects of salicylic acid aqueous solution 0.01 mmol.l-1 , 0.10 mmol.l-1 , 1.00 mmol.l-1 , 10.0 mmol.l-1 and cinnamic acid 60% alcohol solution 0.10 mmol.l-1 , 1.00 mmol.l-1 , 10.0 mmol.l-1 , 100 mmol.l-1. were examined after 6, 24, 48 and 168 hours. Podophylotoxin content was evaluated using HPLC method. In 'Glauca'...

Esta dissertação tem como fio condutor a seguinte pergunta: o que acontece quando as crianças estão entre elas? Elaboro minhas respostas a partir da análise de cinco filmes escolhidos dentre a filmografia dos diferentes módulos da disciplina Cinema e Infância, do PPGEDU, da linha de pesquisa Estudos sobre Infâncias, da FACEDUFRGS. Os filmes são: Meninos de Tóquio (1932); A Guerra dos Botões (1962); O Senhor das Moscas (1963); Os Meninos da Rua Paulo (1969) e Canto dos Pardais (2008). O trabalho busca identificar e compreender o que acontece quando as crianças-personagens dos cinco filmes estão entre elas, analisando estas interações à luz da Sociologia da Infância, explorando alguns de seus principais conceitos – criança, infância, culturas infantis, cultura de pares, reprodução interpretativa. Utilizo como aporte teórico principal SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). As crianças produzem culturas através das relações que estabelecem entre elas e com os outros, sendo significadas como atores sociais e sujeitos ativos no processo de sua socialização. Considerando, portanto, as crianças como seres que estão, sim, em desenvolvimento, mas que protagonizam sua história e agem na sociedade em que estão inseridas, é que olho para as crianças-personagens dos filmes, que são protagonistas do meu trabalho. As análises foram realizadas a partir de três variáveis insistentes em cada filme, e é a partir delas que as cenas foram selecionadas: as crianças, quando estão entre elas: 1) mobilizam-se, engajam-se; 2) entram em conflito; 3) organizam-se para alcançarem seus objetivos. As interações entre as crianças-personagens dos filmes geraram dados riquíssimos para análise, que não se esgotam nas variáveis e nos trechos selecionados. / The present thesis has the following guideline question: what does it happen when children are among themselves? I elaborate these answers through my own analysis of five films, namely, I Was Born, But… (1932), War of the Buttons (1962), Lord of the Flies (1963), The Boys of Paul Street (1969) and The Song of Sparrows (2008). The films were chosen among other titles of the filmography of the discipline Cinema and Childhood offered by the Graduate Program in Education. The investigation aims to analyze the children-characters’ interaction with themselves in the five films. The analysis was done exploring Sociology of Childhood and its main concepts: child, childhood, children’s cultures, peer cultures and interpretative reproduction. As a theoretical referential I base my reasoning in SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). By means of the relationships established with themselves and with others, children produce cultures and are signified as social actors and active subjects in the process of their socialization. Therefore, children are not only beings in development but also protagonists of their own history acting in the society they are inserted. It is in this manner that I look to the children-characters of the films, which are also the protagonists of my work. I have established three variables that are insistently common to each of the films: 1) children mobilizing or engaging themselves; 2) children conflicting with themselves; 3) children organizing themselves in order to achieving their goals. In the search for a dialogue with Sociology of Childhood, I have selected scenes from the films that were analyzed, taking the variables as starting points. The children-characters have generated plentiful data for analysis that is limited to the variables nor to the selected scenes.

Esta dissertação tem como fio condutor a seguinte pergunta: o que acontece quando as crianças estão entre elas? Elaboro minhas respostas a partir da análise de cinco filmes escolhidos dentre a filmografia dos diferentes módulos da disciplina Cinema e Infância, do PPGEDU, da linha de pesquisa Estudos sobre Infâncias, da FACEDUFRGS. Os filmes são: Meninos de Tóquio (1932); A Guerra dos Botões (1962); O Senhor das Moscas (1963); Os Meninos da Rua Paulo (1969) e Canto dos Pardais (2008). O trabalho busca identificar e compreender o que acontece quando as crianças-personagens dos cinco filmes estão entre elas, analisando estas interações à luz da Sociologia da Infância, explorando alguns de seus principais conceitos – criança, infância, culturas infantis, cultura de pares, reprodução interpretativa. Utilizo como aporte teórico principal SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). As crianças produzem culturas através das relações que estabelecem entre elas e com os outros, sendo significadas como atores sociais e sujeitos ativos no processo de sua socialização. Considerando, portanto, as crianças como seres que estão, sim, em desenvolvimento, mas que protagonizam sua história e agem na sociedade em que estão inseridas, é que olho para as crianças-personagens dos filmes, que são protagonistas do meu trabalho. As análises foram realizadas a partir de três variáveis insistentes em cada filme, e é a partir delas que as cenas foram selecionadas: as crianças, quando estão entre elas: 1) mobilizam-se, engajam-se; 2) entram em conflito; 3) organizam-se para alcançarem seus objetivos. As interações entre as crianças-personagens dos filmes geraram dados riquíssimos para análise, que não se esgotam nas variáveis e nos trechos selecionados. / The present thesis has the following guideline question: what does it happen when children are among themselves? I elaborate these answers through my own analysis of five films, namely, I Was Born, But… (1932), War of the Buttons (1962), Lord of the Flies (1963), The Boys of Paul Street (1969) and The Song of Sparrows (2008). The films were chosen among other titles of the filmography of the discipline Cinema and Childhood offered by the Graduate Program in Education. The investigation aims to analyze the children-characters’ interaction with themselves in the five films. The analysis was done exploring Sociology of Childhood and its main concepts: child, childhood, children’s cultures, peer cultures and interpretative reproduction. As a theoretical referential I base my reasoning in SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). By means of the relationships established with themselves and with others, children produce cultures and are signified as social actors and active subjects in the process of their socialization. Therefore, children are not only beings in development but also protagonists of their own history acting in the society they are inserted. It is in this manner that I look to the children-characters of the films, which are also the protagonists of my work. I have established three variables that are insistently common to each of the films: 1) children mobilizing or engaging themselves; 2) children conflicting with themselves; 3) children organizing themselves in order to achieving their goals. In the search for a dialogue with Sociology of Childhood, I have selected scenes from the films that were analyzed, taking the variables as starting points. The children-characters have generated plentiful data for analysis that is limited to the variables nor to the selected scenes.

Esta dissertação tem como fio condutor a seguinte pergunta: o que acontece quando as crianças estão entre elas? Elaboro minhas respostas a partir da análise de cinco filmes escolhidos dentre a filmografia dos diferentes módulos da disciplina Cinema e Infância, do PPGEDU, da linha de pesquisa Estudos sobre Infâncias, da FACEDUFRGS. Os filmes são: Meninos de Tóquio (1932); A Guerra dos Botões (1962); O Senhor das Moscas (1963); Os Meninos da Rua Paulo (1969) e Canto dos Pardais (2008). O trabalho busca identificar e compreender o que acontece quando as crianças-personagens dos cinco filmes estão entre elas, analisando estas interações à luz da Sociologia da Infância, explorando alguns de seus principais conceitos – criança, infância, culturas infantis, cultura de pares, reprodução interpretativa. Utilizo como aporte teórico principal SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). As crianças produzem culturas através das relações que estabelecem entre elas e com os outros, sendo significadas como atores sociais e sujeitos ativos no processo de sua socialização. Considerando, portanto, as crianças como seres que estão, sim, em desenvolvimento, mas que protagonizam sua história e agem na sociedade em que estão inseridas, é que olho para as crianças-personagens dos filmes, que são protagonistas do meu trabalho. As análises foram realizadas a partir de três variáveis insistentes em cada filme, e é a partir delas que as cenas foram selecionadas: as crianças, quando estão entre elas: 1) mobilizam-se, engajam-se; 2) entram em conflito; 3) organizam-se para alcançarem seus objetivos. As interações entre as crianças-personagens dos filmes geraram dados riquíssimos para análise, que não se esgotam nas variáveis e nos trechos selecionados. / The present thesis has the following guideline question: what does it happen when children are among themselves? I elaborate these answers through my own analysis of five films, namely, I Was Born, But… (1932), War of the Buttons (1962), Lord of the Flies (1963), The Boys of Paul Street (1969) and The Song of Sparrows (2008). The films were chosen among other titles of the filmography of the discipline Cinema and Childhood offered by the Graduate Program in Education. The investigation aims to analyze the children-characters’ interaction with themselves in the five films. The analysis was done exploring Sociology of Childhood and its main concepts: child, childhood, children’s cultures, peer cultures and interpretative reproduction. As a theoretical referential I base my reasoning in SARMENTO (2003, 2005, 2009), CORSARO (2009, 2011), PROUT (2010), QVORTRUP (2010), DELGADO (2006) e BARTHES (1990). By means of the relationships established with themselves and with others, children produce cultures and are signified as social actors and active subjects in the process of their socialization. Therefore, children are not only beings in development but also protagonists of their own history acting in the society they are inserted. It is in this manner that I look to the children-characters of the films, which are also the protagonists of my work. I have established three variables that are insistently common to each of the films: 1) children mobilizing or engaging themselves; 2) children conflicting with themselves; 3) children organizing themselves in order to achieving their goals. In the search for a dialogue with Sociology of Childhood, I have selected scenes from the films that were analyzed, taking the variables as starting points. The children-characters have generated plentiful data for analysis that is limited to the variables nor to the selected scenes.

Cette thèse analyse l'impact des modèles nationaux (multiculturalisme britannique, d'un côté, et modèle républicain français, de l'autre) sur la saillance de l'ethnicité dans les cultures juvéniles des quartiers populaires. Elle repose sur une enquête ethnographique menée entre 2007 et 2012 dans la ville de Bondy en Seine-Saint-Denis et dans le district de Newham à East London, auprès d'adolescents et de jeunes adultes, par entretiens individuels, entretiens collectifs et observations. Elle montre comment modèles nationaux et particularités des contextes locaux se combinent pour produire une saillance ethnique sociale, locale et éclatée, à Newham, politique et collective, à Bondy. A Bondy, l'ethnicité est expérimentée et représentée comme redoublant les diverses dimensions des inégalités sociales ; elle rassemble les enquêtés dans un "nous" proche et multidimensionnel ("Noirs et Arabes", "jeunes de banlieue", "pauvres") opposé à un "eux" distant (les "institutions", les "politiques", les "Français"). L'expérience des discriminations ethniques y est une expérience centrale qui structure le rapport des enquêtés aux institutions locales et à la société française. A Newham, l'ethnicité organise la séparation de différentes socialisations et sociabilités dans l'espace local entre jeunes "Black", "White" et "Asian". Perçue comme découplée des autres dimensions des inégalités sociales, l'ethnicité reste peu politisée et peu conflictuelle dans le rapport aux institutions locales. L'expérience de classe prédomine, alors, dans les rapports conflictuels des enquêtés à la société britannique. / This thesis analyses the impact of national models (British multiculuralism vs French model of integration) on ethnic salience in youth cultures of working class and immigrant neighbourhoods. It is based on an ethnographic research study carried out between 2007 and 2012, through individual interviews, focus groups and observations among teenagers and young adults in the city of Bondy in Seine-Saint-Denis and the London Borough of Newham, in East London. It shows how both the specifics of national models and of local contexts produce a social, local and fragmented ethnic salience in Newham, and a political and collective one in Bondy. In Bondy, ethnicity overlaps other dimensions of social inequality. The common experience of belonging to a minority results in young people identifying with a close and multidimensional "us" ("blacks and arabs", "youth from the suburbs", "poor people") as opposed to a distant "them" ("institutions", "politicians", "French people"). The central experience of ethnic discriminations tends to saturate young people's relationship to institutions and the way they relate to French society. In Newham, Black, White and Asian young people socialise in their respective groups and meeting places. However, they perceive ethnic divisions as separate to other dimensions of social inequality. Ethnicity is not often politicised or the subject of conflict with local authorities, as it is considered just a part of a larger experience of social injustice. Instead, social class issues are at the core of conflicts between the people interviewed and the wider British society.

Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacognosy Student: Alica Pakánová Supervisor: PharmDr. Marie Kašparová, Ph.D. Title of diploma thesis: Secondary metabolites of plant cultures in vitro II Diploma thesis is focused on callus and suspension plant cultures of Juniperus virginiana 'Glauca' and their production of secondary metabolite. Produced content of podophyllotoxin was observed during 15 subcultivations for both types of cultures. The highest content of podophyllotoxin (0.060 %) was established in the 18th subcultivation of suspension culture derivated from the three-years-old callus culture and then subcultivated in the period of 21 days. The maximal content of podophyllotoxin produced by callus culture (0.0515 %) was found out in the 46th subcultivation. Simultaneously it represented the last observed subcultivation subcultivated in the period of 28 days. This research shows that nor the production of Juniperus virginiana callus culture neither the production of suspension culture is stopped by increased number of subcultivation. Keywords: Suspension cultures, callus cultures, production of secondary metabolites, Juniperus virginiana, podophyllotoxin.

Cette recherche s'intéresse aux représentations et aux images de la France, des Français, de la langue française et de son apprentissage chez des élèves jordaniens de niveau collège. Leurs influences dans le champ des études des langues et dans leur processus d'apprentissage et d'enseignement sont notables. Nous nous intéressons, dans cette étude, au terrain scolaire jordanien : un terrain presque vierge qui n'a pas été suffisamment exploité. Ainsi, pour recueillir les données nécessaires, nous avons eu recours à une enquête de terrain composée de quatre méthodologies de collecte de données : le questionnaire, la méthode des dessins, l'exercice des mots associés et les entretiens semi-directifs (collectifs et individuels). L'enquête de terrain a été réalisée auprès de 655 élèves apprenant le français et âgés de 12 à 16 ans. Les résultats montrent que l'image générale de la France, des Français et de la langue française chez les élèves est équilibrée, bien que parfois stéréotypée, antagoniste et généralisée. L'enquête montre également l'existence d'une relation étroite entre les représentations d'une langue étrangère et la motivation de son apprentissage. Enfin, cette étude montre l'importance d'étudier, de comprendre, d'infléchir, de reconstruire et de remplacer parfois les représentations que les apprenants ont du pays, des locuteurs et de la langue étudiée. Aussi, suite à notre enquête, nous soutenons la nécessité d'adopter un enseignement ayant une approche interculturelle, surtout aujourd'hui avec la mondialisation et la diversité des ressources d'information. / The focus of this research is the image of France as a country, its people, and the French language teaching and learning among Jordanian students in public and private schools. The influences of this image on the language studies and the process of teaching and learning are significant. This study was centered on French language learning process in Jordanian schools. The researcher was interested in this field of study because it is almost virgin filed and was not yet explored properly. In order to collect the necessary data for this research, detailed and extensive field study was conducted using four different methods for the data collection, these methods are: questionnaire, use of drawings, associated words and semi-structured interviews (individual and collective). Six hundred and fifty five French language students aged between twelve and sixteen years old from five different public and private schools have participated in this field study. The results of this research clearly show that, the image of France, French people and French language is positive and stable, despite the few occasions when the image was stereotyped, antagonistic and generalized. The research also shows that there is a very close relationship between foreign language representation and learning motivation. Finally, this research study shows the importance of understanding the image of learners towards the country and its people and towards the language itself, as well, the importance of correcting, rebuilding and replacing the bad images misrepresentation. Moreover, the study supports the necessity of adopting an education with an international approach, especially with globalization and diversity of information resources.

Au début des années 1970, en France, la science-fiction constituée en subculture connaît son moment contre-culturel, à la croisée des médias et des revendications en légitimité, avec le long métrage d’animation de Laloux (La Planète sauvage, 1973), les revues de bandes dessinées « adultes » (Métal hurlant, 1975, notamment Mœbius et Bilal) et la politisation de l’écriture du genre qui se positionne par rapport à l’héritage des expériences formelles de la New Wave et à l’idéologie contestataire de Mai 68 (Andrevon, Les Hommes-machines contre Gandahar, 1969). Trente ans plus tard, dans le contexte de la révolution multimédia qui fait converger jeu vidéo, cinéma à effets spéciaux et animation de synthèse, les novellisations de Bordage tirées d’un jeu vidéo (Atlantis, 1998) et d’un dessin animé en 3D (Kaena, 2003) interrogent les rapports encore assez étanches entre littérature de science-fiction et nouveaux médias en France, à l’aube du régime numérique de consommation des fictions de masse. À partir de ce domaine et de cette période d’étude, cette thèse envisage l’intermédialité dans la science-fiction française comme construction historique et discursive produite par les acteurs, lieu de négociation des représentations du genre et de ses conflits de définition, par rapport au domaine américain, à la question industrielle et à la figure de l’auteur. Elle en identifie trois moments historiques, en comprenant le terme moment dans son sens temporel de « durée » comme dans son sens physique de « mesure d’une dynamique en synchronie ». Ce parcours historique des formes et des discours de l’intermédialité dégage les lignes évolutives du « macro-texte » français (Bréan), en montrant comment il se positionne par rapport aux logiques du « mega-text » (Broderick). Il conduit, dans un deuxième temps, à interroger comment les romans, les bandes dessinées, les dessins animés, les films et les jeux vidéo font science-fiction par rapport à cet ancrage culturel, du point de vue sémiotique, cognitif et narratif. Les modalités sémiotiques de l’effet-SF sont clarifiées par la distinction entre étrangetés de monde (novums) et étrangetés de forme (estrangement), toutes deux dépendantes de déterminations architextuelles médiatiques et génériques. La relecture des propositions de Suvin permet ainsi de construire une grille d’analyse intermédiatique de la poétique culturelle du genre. Le novum visuel fait l’objet d’une enquête spécifique, pour être ensuite confronté aux leviers verbaux de l’étrangeté et pour envisager une intersémiotique narrative du genre dans les médias plurisémiotiques (bande dessinée, cinéma, animation, jeu vidéo). Le troisième temps de la thèse fait passer au niveau des mondes, pour considérer l’articulation des étrangetés non plus dans une œuvre, mais entre des œuvres de médias différents ayant en partage une même fiction. En discutant notamment le concept de transfictionnalité (Saint-Gelais) et les travaux de Besson et de Letourneux sur les univers fictionnels contemporains massivement transmédiatiques, on distingue quatre dynamiques intermédiatiques de construction de monde (monde à bâtir, monde à varier, monde en hélice et monde à jouer). Il s’agit de cibler la spécificité du biotope français en matière d’« effet-monde » science-fictionnel, mais aussi de proposer des modèles utiles à l’analyse d’autres réalités culturelles. / At the beginning of the 1970s, in France, science fiction subculture engages in its countercultural moment. Contestations and claims of legitimacy come from different media: Laloux defends a national, artisanal and engaged conception of animation (La Planète sauvage, 1973), French “bande dessinée” shows new aesthetic and graphic ambitions in magazines referring to themselves as “adult” (Metal hurlant, 1975, with a special focus on Mœbius and Bilal), and literary science fiction becomes more and more politicised, confronted to the legacy of the British New Wave and to the ideology born with Mai 68 (Andrevon, Les Hommes-machines contre Gandahar, 1969). Thirty years later, the “multimedia revolution” implies a technical and cultural convergence between videogames, hyperrealistic special effects in cinema, and 3D computer generated animation movies. In this context, the novelizations of Pierre Bordage (Atlantis, 1998, adapted from an adventure video game by Cryo Interactive, and Kaena, 2003, from a European 3D digital animation movie) question the still rare interactions between literature and “new media” in French science fiction, at the turning point of the 2000s and as we move into the digital moment of existence of popular fictions. Considering this area and this period of time, this thesis examines intermediality in French science fiction as a historical and rhetorical construction, used by the actors to promote certain representations of the genre and to take position in conflicts about generic definition, especially regarding the relations with American productions, the industrial question, and the place of the author. I identify three moments of intermediality in French science fiction during that period of time (1973-2003). I consider the term moment in its temporal sense (a duration) and in its physical one (a synchronic measure of a dynamic phenomenon). This historical analysis of intermediality’s forms and discourses shows how the French « macro-texte » (Bréan) evolves in regard to the global « mega-text » of the genre (Broderick). This leads to study secondly what I call the « SF-effect », in relation with that historical and cultural context, from a semiotic, cognitive and narrative point of view. I engage in clarifying semiotic modalities of the SF-effect by considering relations between novum (a strange diegetic reality) and estrangement (a strange formal device), both depending on media and generic architextual determinants. Discussing the famous theory of Suvin, I propose an intermedial analytical framework of the cultural poetics of science fiction. Visual SF-effect is specifically investigated, and then confronted to the verbal estrangement figures, leading to a narrative intersemiotic approach of science fiction “texts” (in a broad meaning) when they are produced by media using different systems of signs. Finally, I consider the problem of world building and how novums and estrangements intersect in productions from different media when these productions share the same fictional world. I discuss the concept of transfictionality forged by Saint-Gelais and the propositions of Besson and Letourneux about massively transmedial contemporary fictional worlds. I distinguish four intermedial “world-effects” (worlds to be built, worlds to be diversify, helical worlds, worlds to be played) in the specific French biotope of the genre, which may also offer helpful support to analyse other cultural and generic phenomena.