In this thesis, the phenomenon of intercategorial polysemy is approached from two related but previously unconnected perspectives, namely that of linguistic creativity and mental representation. It is argued that the creativity that is part and parcel of the linguistic abilities of each and every human being, has been neglected in the study of linguistics, and should, in fact, form the basis of studies such as these in cognitive lexical creativity. It is argued that structural productivity (the generative view of linguistic creativity) and conceptual creativity lie on a continuum, the middle ground of which is covered by phenomena which are both productive and creative and which have both a formal and a semantic aspect to them. One such a phenomenon is intercategorial polysemy. Explaining the way in which speakers of a language such as English can systematically and productively produce and interpret words that belong to more than one syntactic category (for example, hammerN - hammerV, tableN - tableV, skyN - skyV), which may range from the conventionalised to the completely innovative, has long been a problem for linguists. Traditional morphological accounts involving theoretical notions such as zero derivation have always been found to be inadequate, mostly because zero derivation does not account for the variation in meaning and the background knowledge that is needed to produce and interpret novel instances. The main problem addressed in this thesis then is the question as to the nature of the lexical knowledge of speakers and its mental representation, so that it can form the basis for the cognitive processes that will enable language users to be linguistically creative. Various theoretical models that have been proposed to account for intercategorial polysemy, namely the representationalderivational model, the network-activation model, as well as the theory of conceptual integration (also called blending), are presented and evaluated in the light of a representative sample of completely novel instances of intercategorial polysemy. / Linguistics / D. Litt. et Phi. (Linguistics)

Dans une première partie, nous avons étudié quelques propriétés de molécules magnétiques impliquant des radicaux organiques (seuls ou conjointement avec des terres rares). Nous avons ainsi pu interpréter l'évolution de la susceptibilité magnétique et de l'aimantation en fonction de la température en évaluant par des approches ab initio fonctions d'onde les constantes d'échange ou le tenseur g au sein de ces matériaux. De plus, nous avons chercher à définir les conditions pour que des matériaux à base de radicaux organiques présentent simultanément des propriétés magnétiques et conductrices. Nous avons ainsi examiné différentes familles de composés et l'influence de la structure géométrique et chimique des radicaux organiques utilisés. Pour cette partie, nous avons extrait les intégrales physiques pertinentes par la méthode des Hamiltoniens effectifs.Dans une deuxième partie, nous avons utilisés ces quantités physiques (intégrale de saut, répulsion sur site, échange) pour décrire le phénomène de transport dans des jonctions pour lesquelles les effets de la corrélation électronique ne peuvent être écartés. Munis de ces paramètres ab initio, nous avons développé un modèle phénoménologique permettant de décrire la conduction moléculaire à l'aide d'un jeu d'équations maîtresses. Nous avons ainsi cherché à mettre en évidence l'intérêt des approches post Hartree-Fock empruntant une fonction d'onde corrélée et de spin adapté dans la description du transport électronique. Que ce soit dans le cas de transport polarisé en spin ou non, l'approche utilisée (mono ou multi-déterminentale) conditionne qualitativement et quantitativement la caractéristique courant/tension. / In a first part, we studied the magnetic properties of organic radicals (coupled with rare earth or between each other). We calculated the magnetic exchange and the g-tensor of these compounds to understand their magnetic susceptibility and thei magnetization curves via ab initio calculations based on the wave-function. We studied how the chemistry and the crystal stacking affect meaningful parameters linked to magnetism and conduction. Those parameters were extracted with the thory of effective Hamiltonians fo various families of organic radicals. From the observed trends for the different parameters, we predicted some ways to obtain multifunctional compounds. In a second part, we used the same parameters (hoping integral, coulombic repulsion, magnetic exchange) to describe transport properties through highly correlated molecular junctions. From the ab initio parameters, we developed a phenomenological model based on master equations to describe the electronic transport. We stressed the importance of a multiconfigurational description to reproduce properly the transport properties for spin unpolarized and spin polarized situations. In both cases, the mono- or multi-configurational description affects qualitatively and quantitatively the predicted conductance curve.

我國農業用地實施休耕補貼之相關政策迄今已逾32年，該政策因長期推行，導致大量農田連續休耕及廢耕，致使生產環境惡化及農地資源浪費，龐大的休耕補貼金額不僅侵蝕國家財政亦讓農民產生不勞而獲之錯覺。農委會冀望透過「調整耕作制度活化農地計畫」的政策目標，本研究選取彰化縣福興鄉、芳苑鄉、大城鄉等領取補貼金額將近該縣半數之農業鄉為樣區，目的在於檢視該政策施行是否具有農業多功能性及永續發展，並就計畫產生的問題擬定對策和修正建議。 　　本研究以文獻分析及深度訪談作為研究方法，透過多功能性的多項評估指標檢視研究結果發現：在經濟生產面向中，量化成果達成率極高，活化農地減少影響鄰地耕作，創造小地主大佃農契機，政策執行成果整體偏向經濟生產面；至於社會生活面，則因農村人口老化、青農返鄉誘因不足與耕地取得不易等，不甚彰顯。另於生態環境面，因多施行慣行農法對於環境較不友善。因而，農業多功能性聯合產出特徵不明顯，離農業永續發展目標仍有距離。 　　本研究建議，政府對休耕地活化補貼政策應再作調整，就商品產出面言，加重申報不實罰責及建立政策退場機制，以確保農業競爭力，並考量因地制宜明定復耕作物項目；就非商品產出面言，應排除耕作困難地補貼，增加環境生態或景觀維護補貼，俾利展現農業多功能，實現永續農業目標。 / Taiwan has been subsidizing the fallowing of agricultural land for 32 years. Due to the long period of execution of the fallowing policy, large areas of agricultural land have been continuously fallowed or abandoned, causing the deterioration of production environment and waste of agricultural resources. In addition, the large amount of subsidy has not only eroded the country’s financial situation, but also caused misconception of farmers of reaping without sowing. The Council of Agriculture expects to achieve the policy objective through adoption of “Adjustment of Farming System and Plan of Revitalizing Fallow Agricultural Land.” This study selects half of the agricultural townships receiving subsidies in Changhua County such as Fuxing Township, Fangyuan Township and Dacheng Township as examples. It aims to examine whether or not this policy is able to facilitate agricultural multi-functionality and sustainable development, in order to formulate countermeasures and suggestions. 　　 　This study utilizes literature review and in-depth interviews as research methods. Through various Multi-functional indices, this study discovered the following phenomenon. First, from the perspective of economic production, the extremely high achieving rate for revitailzing fallow farm land reduces the impact on the farming of neighboring fields, and creates opportunity for small landowners to become big tenant-farmers. The outcomes of policy execution are tilted to the economic production. Second, in terms of the aspect of social life, due to the aging population in the farming villages, less incentives for young farmers to return to hometowns and difficulty of acquiring arable lands, it is difficult to manifest results. Last, regarding the ecological environment, owing to the unfriendliness of conventional farming skill, the characteristics of Multi-functional agricultural outputs are unclear. There is a certain distance to go to reach to goal of sustainable agricultural development. 　This study suggests that the government should adjust the Fallow Land Subsidy Policy. As for the output of Commodity outputs, government should aggravate the penalties for false declaration and establish the exit mechanism, in order to keep the competitiveness of Taiwan’s agriculture. It is essential to clearly indicate the replanting items that suits local circumstance. With regard to the Non Commodity outputs, the subsidy for difficult arable land should be abolished. Nevertheless, the subsidy for maintaining environmental ecology and scenery should be increased. These measures can help achieve the Multi-function of agriculture and realize the goal of sustainable agriculture.

Ce travail de recherche prend sa source dans les dynamiques actuelles qui affectent les liens entre agricultures et territoires. L'activité agricole n'est plus évaluée à l'aune de son seul rôle alimentaire, son inscription sur le territoire est aujourd'hui renégociée au regard d'enjeux sociaux et environnementaux. Cet examen de l'agriculture sous l'angle d'une pluralité de fonctions ouvre une fenêtre de réflexion sur la place au sein des territoires de filières agricoles à la marge des modèles d'intensification et de modernisation promus depuis une cinquantaine d'années par les politiques agricoles. Nous nous interrogeons en particulier sur l'incidence pour ces filières de l'attention accrue accordée à la biodiversité. En déplaçant le curseur, dans les représentations des acteurs, entre agriculture auxiliaire et agriculture prédatrice, l'enjeu biodiversité est susceptible de modifier les ressources et les contraintes avec lesquelles se construit l'inscription territoriale d'une filière agricole. Nous faisons l'hypothèse que ce processus ne se résume pas à un encadrement de la fonction environnementale, mais est le résultat de compromis territoriaux faisant également intervenir les représentations des autres fonctions de l'activité agricole, économiques, sociales, culturelles. A partir des concepts et des outils de la géographie sociale, en considérant une filière agricole, à l'instar du territoire, comme un objet socio-spatial, nous proposons une analyse en deux temps. A partir des discours d'un panel d'acteurs intervenant sur le territoire, nous analysons, dans un premier temps les représentations des fonctions de l'activité agricole, et, dans un second temps, l'intégration de ces représentations dans leurs stratégies, et les ajustements induits sur les ressources (géographiques, économiques, politiques, symboliques) que mobilise une filière agricole. Nous appliquons cette démarche d'analyse à une filière agricole réunionnaise, la vanille, héritière d'une histoire économique florissante aujourd'hui fragilisée. L'analyse montre que l'attention accrue portée à la biodiversité réunionnaise est un facteur d'évolution de l'inscription territoriale de cette filière : porteuse de contraintes, elle s'accompagne également de nouvelles opportunités. Les arbitrages observés font intervenir, au-delà des seuls enjeux écologiques, les représentations des fonctions sociales, culturelles, et économiques de cette filière. Les acteurs de la filière construisent notamment différentes stratégies de reterritorialisation, s'appuyant à des degrés divers sur ces fonctions attribuées à l'activité agricole. La mise en perspective de cette étude de cas avec celle de la filière café guadeloupéenne pose les bases d'une discussion sur la pertinence de la mobilisation du concept de « service environnemental » dans le cas de ces filières à la marge des modèles promus par les politiques agricoles. L'intervention du Parc National de Guadeloupe sur les dynamiques de relance des filières patrimoniales guadeloupéennes fournit des éléments de discussion sur le rôle d'un Parc National vis-à-vis de ce type de filières agricoles. Leur fragilité met en balance des enjeux économiques, sociaux, culturels et environnementaux dont l'imbrication invite à dépasser leur prise en compte segmentée dans le cadre des politiques sectorielles. / This research deals with changing interactions between agriculture and territories. Food production is no longer the only criteria used to assess agricultural systems efficiency. Social and environmental issues are increasingly taken into account. This new understanding of the role of agriculture within territories raises the issue of the role of some extensive marginal agricultural models, aside intensive models promoted by agricultural policies. We focus on how increasing concerns on biodiversity may impact these models. Addressing biodiversity issues may change the way agriculture is considered, from a threat to a potential ally in natural areas management. We assume that this redefinition of agriculture’s role goes beyond a mere reframing of environmental functions but results of genuine trade-offs with other cultural and social functions. Considering an agricultural industry as a geographical object, we propose a two-stage analysis. Using actor’s discourses, we analyze (i) their perceptions of agricultural functions, then (ii) the integration of these perceptions in their strategies, that contribute to transforming resources (geographical, economical, political, and ideological resources) used by agriculture. This analytical framework is applied on a small but emblematic Reunionese agricultural industry, vanilla, whose economical profitability is questioned today. Our analysis reveals that biodiversity issues both raise new constraints and restriction but also generate new opportunities for actors to make their strategies evolve. Trade-offs between ecological, economical, social and cultural issues are part of these dynamics. The comparison with another marginal insular agricultural industry, coffee in Guadeloupe, reveals similar dynamics, and allows us to discuss the way agriculture could be managed, especially considering environmental and ecological aspects. Although the concept of « environmental service » offers new perspectives, its actual implementation isn’t suited to such agricultural systems, whose characteristics are not those of conventional productivist models. In Guadeloupe, the support the National Park granted to this type of agriculture models (coffee and vanilla) give us some elements to discuss the relevance and the interest of such an intervention. The vulnerability of such marginal industries, and the close intertwining of economic, social, cultural and environmental issues at stake, suggest to cross sectoral settings and to promote a territorial governance allowing a transverse consideration of their specificities.

La mise en place d’une agriculture plus durable nécessite une compréhension de l’impact des pratiques de gestion sur le fonctionnement des agroécosystèmes et sur la fourniture de services écosystémiques. En représentant près de 68% des terres agricoles mondiales et contribuant à la subsistance de plus de 800 millions de personnes, les prairies sont l’un des agroécosystèmes où l’optimisation des pratiques agricoles apparaît comme cruciale. Ce travail de thèse porte sur le chaulage, une pratique agricole connue pour lutter contre les effets de l’acidification des sols – qu’elle soit naturelle ou induite par la gestion – mais dont l’efficacité est variable en prairie permanente. De fait, la littérature documentant l’impact du chaulage en prairie permanente est limitée et ne prend en compte que rarement la multifonctionnalité de ces agroécosystèmes. Par une approche intégrant différents types d’expérimentations, mon travail de thèse a cherché à répondre à ce besoin et à renforcer les connaissances du chaulage sur le fonctionnement de l’écosystème prairial. Le développement d’expérimentations au champ (in situ), en conditions semi-contrôlées (mésocosmes) et d’incubations de sol au laboratoire (microcosmes) a permis d’explorer les effets du chaulage sur les différents compartiments de l’écosystème prairial (végétation, microorganismes, sol) ainsi que l’influence de facteurs modulant ces effets. Dans l’ensemble des expérimentations, le chaulage a effectivement augmenté le pH des sols. Toutefois, cette amélioration du statut acido-basique du sol ne s’est pas toujours traduite par une augmentation de la productivité du fourrage ou des biomasses microbiennes et racinaires. Mes travaux ont montré que le chaulage contribue aux émissions de gaz à effet de serre par différentes voies (réémission du carbone apporté sous forme de chaulage et stimulation de la minéralisation) et peut potentiellement réduire les émissions de CO2 à l’échelle de la respiration de l’écosystème. Collectivement mes résultats soulignent l’importance du contexte pédoclimatique sur l’impact du chaulage en prairie permanente, et la difficulté d’extrapoler les effets du chaulage, en particulier sur la production de fourrage et les émissions de gaz à effet de serre, d’une échelle d’étude fine à l’échelle de la parcelle en prairie permanente. L’efficacité du chaulage semble dépendre du type d’amendement et de son dosage et peut également interagir avec d’autres pratiques de gestion telles que la fertilisation azotée et le niveau d’intensité de gestion. / The development of sustainable agriculture requires greater understanding of the impact of management practices on agroecosystem functioning, and on the ecosystem services provided by these agroecosystems. Representing nearly 68% of world's agricultural surfaces and contributing to the livelihoods of more than 800 million people, grasslands are one of the major agroecosystems where optimized agricultural practices are of concern. This PhD focuses on liming, a well-known practice for counteracting soil acidification (due to ongoing natural processes or accelerated by management practices), but which has variable efficiency in permanent grasslands. Indeed, liming effects on grassland are poorly documented and existing studies rarely take into account grassland multifunctionality. My thesis uses an integrated approach to improve the knowledge of liming impacts on grassland functioning. Different types of experiments – in the field (in situ), in semi-controlled conditions (mesocosms) and laboratory soil incubations (microcosms) – were used to study liming effects on different grassland compartments (vegetation, microorganisms, soil) along with possible interacting factors. Liming effectively increased soil pH in all the experiments. However, improving pH status did not always lead to greater forage production or increases in microbial and root biomass. My results showed that liming can enhance greenhouse gas emissions through several pathways (reemission of lime-derived carbon or stimulation of carbon mineralization), but may also reduce CO2 emissions from ecosystem respiration. Collectively, my findings emphasize the importance of pedoclimatic conditions for liming impacts on permanent grasslands and highlight the difficulty of upscaling liming effects, particularly on forage production and greenhouse gas emissions. The efficiency of liming appears to depend on the type and dose of soil improvers and can also interact with other management practices such as nitrogen fertilization and management intensification.

Au fil du temps, la vie a évolué pour produire des organismes remarquablement complexes. Pour faire face à cette complexité, les organismes ont développé une pléthore de mécanismes régulateurs. Par exemple, les mammifères transcrivent des milliers d'ARN longs non codants (ARNlnc), accroissant ainsi la capacité régulatrice de leurs cellules. Un concept émergent est que les ARNlnc peuvent servir d'échafaudages aux complexes protéiques, mais la prévalence de ce mécanisme n'a pas encore été démontrée. De plus, pour chaque ARN messager, plusieurs régions 3’ non traduites (3’UTRs) sont souvent présentes. Ces 3’UTRs pourraient réguler la fonction de la protéine en cours de traduction, en participant à la formation des complexes protéiques dans lesquels elle est impliquée. Néanmoins, la fréquence et l’importance ce mécanisme reste à aborder.Cette thèse a pour objectif de découvrir et comprendre systématiquement ces deux mécanismes de régulation méconnus. Concrètement, l'assemblage de complexes protéiques promus par les ARNlnc et les 3'UTRs est étudié avec des données d’interactions protéines-protéines et protéines-ARN à grande échelle. Ceci a permis (i) de prédire le rôle de plusieurs centaines d'ARNlnc comme molécules d'échafaudage pour plus de la moitié des complexes protéiques connus, ainsi que (ii) d’inférer plus d’un millier de complexes 3'UTR-protéines, dont certains cas pourraient réguler post-traductionnellement des protéines moonlighting aux fonctions multiples et distinctes. Ces résultats indiquent qu'une proportion élevée d'ARNlnc et de 3'UTRs pourrait réguler la fonction des protéines en augmentant ainsi la complexité du vivant. / Over time, life has evolved to produce remarkably complex organisms. To cope with this complexity, organisms have evolved a plethora of regulatory mechanisms. For instance, thousands of long non-coding RNAs (lncRNAs) are transcribed by mammalian genomes, presumably expanding their regulatory capacity. An emerging concept is that lncRNAs can serve as protein scaffolds, bringing proteins in proximity, but the prevalence of this mechanism is yet to be demonstrated. In addition, for every messenger RNA encoding a protein, regulatory 3’ untranslated regions (3’UTRs) are also present. Recently, 3’UTRs were shown to form protein complexes during translation, affecting the function of the protein under synthesis. However, the extent and importance of these 3’UTR-protein complexes in cells remains to be assessed.This thesis aims to systematically discover and provide insights into two ill-known regulatory mechanisms involving the non-coding portion of the human transcriptome. Concretely, the assembly of protein complexes promoted by lncRNAs and 3’UTRs is investigated using large-scale datasets of protein-protein and protein-RNA interactions. This enabled to (i) predict hundreds of lncRNAs as possible scaffolding molecules for more than half of the known protein complexes, as well as (ii) infer more than a thousand distinct 3’UTR-protein complexes, including cases likely to post-translationally regulate moonlighting proteins, proteins that perform multiple unrelated functions. These results indicate that a high proportion of lncRNAs and 3’UTRs may be employed in regulating protein function, potentially playing a role both as regulators and as components of complexity.

Diese Dissertation untersucht verschiedene soziale sowie landschaftsästhetische Funktionen der Landwirtschaft in strukturell gegensätzlichen Agrarsystemen. In der Untersuchung wird hierfür stets ein von kleinen Familienbetrieben dominiertes System mit einem stärker großstrukturierten, gewerblichen System verglichen. Die Arbeitszufriedenheit der Landwirte sowie ihre soziale Vernetzung mit der lokalen Gemeinde wurden im Vergleich zwischen dem kleinbäuerlichen Schweizer und dem großbetrieblichen nordostdeutschen System analysiert. Mittels Choice Experimenten wurden in der Schweiz und in Süddeutschland (d.h. kleinbäuerliche Systeme) sowie in Ostdeutschland (d.h. großstruktiertes, gewerbliches System) zudem Bevölkerungspräferenzen für Agrarlandschaften und damit die ästhetische Funktion der Landwirtschaft untersucht. Unter Berücksichtigung der Betriebsstruktur (z.B. Betriebsgröße) sind Schweizer Bauern zufriedener mit ihrer Arbeit als nordostdeutsche. Das Betriebseinkommen ist für nordostdeutsche Bauern signifikant wichtiger für die Arbeitszufriedenheit als für die Schweizer Kollegen. Besonders für Schweizer Bauern spielt die Betriebsdiversifizierung eine positive Rolle für die Zufriedenheit, z.B. die Vielfalt der Produktionszweige oder nicht-landwirtschaftliche Betriebszweige wie Agrotourismus. Auch haben Schweizer Bauern und solche kleinerer Betriebe mehr Bezug zu ihrer lokalen Gemeinde durch lokal fokussierte soziale Netzwerke. Betriebsleiter größerer Betriebe sind hauptsächlich außerhalb der Gemeinden vernetzt und fühlen sich diesen weniger zugehörig. Zudem stärkt ein biographischer Bezug zum Hof die Verbindung mit der Gemeinde. Die Mehrheit der befragten Schweizer und Ostdeutschen ist zudem für qualitative Veränderungen der Agrarlandschaften (d.h. mehr Weiden zur Freilandhaltung, Streuobstwiesen und höhere Biodiversität). Waldrückgange sowie Schlaggrößenveränderungen landwirtschaftlicher oder forstlicher Flächen werden nahezu einheitlich abgelehnt. / This dissertation investigates different social functions of agriculture as well as landscape aesthetics in farming systems of different agricultural structures. Throughout the whole project farming systems dominated by small family farms and large-scale farming systems dominated by commercial non-family farms (e.g. cooperatives) were compared. Farmers’ work satisfaction and their connection to the local community were examined in the small-scaled Swiss system and in the larger scaled Northeast (NE) German one. Public landscape preferences were derived using choice experiments in Switzerland and South Germany, representing small-scale systems, as well as in East Germany, representing a large-scaled one, to explore agriculture‘s aesthetic function. Swiss farmers are more satisfied with their agricultural work if for effects of farm structure (e.g. farm size) is controlled for. Farm income plays a significantly more important role for the work satisfaction of NE German farmers than for that of Swiss ones. Especially for Swiss farmers, farm diversification plays an important role, for example through a diversity of production lines or through non-agricultural activities like agrotourism. Further results show that Swiss farmers and farmers of smaller farms are more connected to their local communities through more locally focused social networks. Farmers of larger farms have their networks farther away from the farm and a weaker sense of belonging to their local community. A biographical bond to the farm also strenghtens the connection to the local community. Concerning public landscape preferences the majority of the Swiss and East German respondents generally prefers qualitative changes to landscapes (i.e. meadows for free range animal husbandry, meadow orchards and more biodiversity). Forest loss or changes in plot sizes of agricultural land and forests are nearly uniformly rejected in all regions.

Submitted by ROSANA AKEMI PAFUNDA null (akemi.jp@gmail.com) on 2017-02-07T02:12:54Z No. of bitstreams: 1 DISSERTAÇÃO FINAL.pdf: 5122601 bytes, checksum: 6beaeb1b8ae96e3ca65800b184958c61 (MD5) / Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2017-02-09T18:24:02Z (GMT) No. of bitstreams: 1 pafunda_ra_me_ippri.pdf: 5122601 bytes, checksum: 6beaeb1b8ae96e3ca65800b184958c61 (MD5) / Made available in DSpace on 2017-02-09T18:24:02Z (GMT). No. of bitstreams: 1 pafunda_ra_me_ippri.pdf: 5122601 bytes, checksum: 6beaeb1b8ae96e3ca65800b184958c61 (MD5) Previous issue date: 2016-03-18 / Em diálogo com os paradigmas da questão agrária e do capitalismo agrário o presente trabalho procurou analisar a migração do meio urbano para o rural conhecido como fenômeno neo-rural ou novo rural que culminou na formação da Cooperativa dos Produtores Rurais de Juquitiba e Região (COOPJUQUI). Trabalhadores urbanos, alguns com raízes no campo, pois seus pais ou avós eram camponeses, mas, sobretudo, pessoas sem qualquer vínculo com o meio rural, isto é, que nasceram e viveram em grandes cidades, tem migrado para o campo com o objetivo buscar a satisfação pessoal e a qualidade de vida não proporcionada pelo espaço urbano. A vontade de viver com tranquilidade, de se reencontrarem consigo mesmos e com o outro, além do anseio por controlar o próprio tempo, tem motivado muitos habitantes citadinos a abandonar o meio urbano e suas profissões na cidade para trabalhar no campo em sintonia com a natureza como agricultores familiares. Estes novos rurais ou neo-rurais vem ocupando uma pequena área do Vale do Ribeira. Neste contexto, investigou-se como o processo vislumbrado na Europa, sobretudo a partir dos anos 80, tem se desenvolvido em Juquitiba, município com a maior área de Mata Atlântica preservada da Região Metropolitana de São Paulo. A metodologia empregada na pesquisa foi, sobretudo, empírica, associada ao levantamento de dados e bibliografias. Na realização da pesquisa de campo foram entrevistados 11 neo-rurais que se dedicam à fungicultura, uma das sete cadeias produtivas da cooperativa e a que compreende a maior parcela de seus cooperados. Inicialmente, o trabalho se ateve a contextualizar a região a partir de suas características geofísicas e históricas. Relacionando os relatos dos entrevistados com as referências bibliográficas analisou-se como as noções de pluriatividade e de multifuncionalidade da agricultura estão presentes nas práticas dos neo-rurais e resgatam a essencialidade da atividade agrícola enquanto modo de vida para o campesinato perfazendo, por conseguinte, as novas ruralidades. As etapas no modo de produzir o cogumelo também são descritas, pois se reconhece o processo de transição agroecológica. A conclusão deste trabalho é a de que os neo-rurais se posicionam em ambos os paradigmas. Filiam-se ao PCA na medida em que atendem a um nicho de mercado que os integra à agricultura empresarial. Por outro lado, se afastam da agricultura capitalista porque não se organizam a partir do trabalho assalariado. Compartilham do PQA, pois a estrutura produtiva é sustentada fundamentalmente pela família. / In dialogue with the paradigms of the agrarian question and the agrarian capitalism this study was to analyze the migration from urban to rural known as neo-rural or new rural phenomenon that culminated in the formation of the Cooperativa dos Produtores Rurais de Juquitiba e Região (COOPJUQUI). Urban workers, some with roots in the field, because their parents or grandparents were farmers, but above all people without any link with the countryside, that is, who were born and lived in large cities, have migrated to the country in order to seek personal satisfaction and quality of life is provided by the urban space. The desire to live in peace, to rediscover themselves and with each other, beyond the desire to control time itself, has motivated many inhabitants townspeople to leave the urban and their professions in the city to work in the field in tune with nature as farmers. These new rural or neo-rural is occupying a small area of the Vale do Ribeira. In this context, we investigated how the envisaged process in Europe, especially since the 80s, has been developed in Juquitiba, municipality with the largest Atlantic Forest preserved area of Greater São Paulo. The methodology used in the research was mainly empirical, associated with data collection and bibliographies. In conducting the field survey respondents were 11 neo-rural engaged in fungicultura, one of the seven production chains of the cooperative and comprising the largest share of its members. Initially, the work is adhered to contextualize the region from its geophysical and historical features. Reconnecting the reports of respondents with references analyzed how the notions of pluriactivity and agriculture multifunctionality are present in the neo-rural practices and rescue the essentiality of agricultural activity as a way of life for the peasantry making therefore the new ruralities. The steps in order to produce the mushroom are also described, as it recognizes the agroecological transition. The conclusion of this work is that the neo-rural position themselves in both paradigms. They are affiliated to the PCA in that cater to a niche market that integrates the agriculture business. On the other hand, move away from capitalist agriculture because they are organized from wage labor. They share the PQA as the productive structure is fundamentally supported by the family. / En diálogo con los paradigmas de la cuestión agraria y el capitalismo agrario este estudio fue analizar la migración de urbano a rural conocida como fenómeno neo-rural o nueva rural que culminó con la formación de la Cooperativa de Produtores Rurais de Juquitiba e Região (COOPJUQUI). Los trabajadores urbanos, algunos de ellos con raíces en el campo, debido a que sus padres o abuelos eran agricultores, pero por encima de todas las personas sin ningún vínculo con el campo, es decir, que han nacido y vivido en grandes ciudades, han emigrado al país con el fin de buscar satisfacción personal y calidad de vida es proporcionado por el espacio urbano. El deseo de vivir en paz, para redescubrir a sí mismos y entre sí, más allá del deseo de controlar el tiempo mismo, ha motivado a muchos habitantes gente del pueblo para salir de la urbana y sus profesiones en la ciudad para trabajar en el campo, en sintonía con la naturaleza como agricultores. Estos nuevos rural o neo-rural está ocupando un área pequeña del Vale do Ribeira. En este contexto, se investigó cómo el proceso previsto en Europa, sobre todo desde los años 80, se ha desarrollado en Juquitiba, municipio con la mayor área de bosque atlántico conservado de la Gran Sao Paulo. La metodología utilizada en la investigación fue principalmente empírica, asociado con la colección y en las bibliografías de datos. En la realización de los encuestados eran de campo 11 neo-rurales dedicadas a fungicultura, una de las siete cadenas de producción de la cooperativa y que comprende la mayor parte de sus miembros. Inicialmente, el trabajo se adhiere a contextualizar la región a partir de sus características geofísicas e históricos. Volver a conectar los informes de los encuestados con referencias analizadas cómo están presentes en las prácticas Neorrural las nociones de pluriactividad y multifuncionalidad agricultura y rescatar a la esencialidad de la actividad agrícola como una forma de vida para los campesinos haciendo, por tanto, la nuevas ruralidades. También se describen los pasos en orden para producir el hongo, ya que reconoce la transición agroecológica. La conclusión de este trabajo es que la posición neo-rural a sí mismos en los dos paradigmas. Están afiliados a la PCA en que atienden a un nicho de mercado que integra el negocio de la agricultura. Por otra parte, alejarse de la agricultura capitalista porque están organizados del trabajo asalariado. Comparten la PQA como la estructura productiva se apoya fundamentalmente por la familia.

早期政府倡導「客廳即工廠」產業發展政策，卻在土地使用分區劃分不明確、法令規範與管制不嚴謹之下，工廠直接將含有毒性與重金屬廢水，排入灌溉系統，導致農地與其生產的農作物遭到污染，威脅到社會大眾食品安全。截至民國100年底，依環保署公告資料顯示，將近8成的污染農地，整治完成並解除列管，故宣稱污染農地之改善，已達一定成效。然而，目前研究指出，台灣污染農地的整治方式，大多以翻土法進行，僅將污染土壤埋入地底，並非真正清除污染物質。另一方面，政府亦無積極改善污染源，使得部分農地即使整治後再度污染，而必須重新整治。如此情況，不禁讓許多學者質疑這樣整治的實質意義何在。 　　近年來，由於整治技術的侷限，以及龐大整治經費的壓力，對污染土地已不再以整治為唯一考量，而是透過風險的概念，藉由轉變土地利用模式，讓受污染土地得以再利用。目前台灣關於污染農地再利用之研究，大抵建議污染農地變更為非農業使用，甚至認為污染農地整治後恢復農用，效益偏低。然而，本研究認為，此等研究未考量到農地維持農用之多功能性，除商品價值外，仍有許多非商品價值，包括環境、生態、景觀等效益。 　　基此，本研究以污染農地整治後再利用，朝向種植非食用作物為主軸，並分為污染農地為何需要再利用，與污染農地如何再利用二大部分進行論述。首先以污染土地再利用的風險原則，融合多功能性之觀點，建立污染農地再利用之理論基礎。而後，進一步研擬三項污染農地再利用方案，包括「植樹造林」、「種植能源作物」、「種植花卉景觀作物」等。本研究認為整治後的污染農地，若推行此三項再利用方案，可兼顧風險原則、發揮農地農用多功能性，並避免繼續種稻威脅食品安全，以及節省政府後續管理成本等。接著，以彰化縣和美鎮作為個案，採用深度訪談的方式，針對和美鎮污染農地農民，與彰化縣污染農地相關承辦人，檢視實際整治與後續利用的困難，以及對於污染農地再利用之想法與建議。 　　最後，透過文獻分析與深度訪談結果，可獲得以下結論：（1）台灣污染農地整治方式以翻土工程為主，對農地造成破壞；（2）污染農地即使整治後，仍可能再度被污染；（3）污染農地整治完成後，以長期休耕為主；（4）台灣處理污染農地，違反再利用之基本原則。有鑑於此，本研究對於污染農地如何再利用，提出以下之政策建議：（1）推動污染農地轉作非食用作物，可創造諸多效益；（2）以中央層級確立污染農地再利用政策；（3）劃設高污染風險農地專區，優先輔導種植非食用作物。此外，必要配套措施包括：（1）依區域條件評選合適的再利用方案，提供技術與後續產銷輔導；（2）重視污染源頭管制，使工業生產者擔負污染責任。 / In the past, government advocated "living room factories" industrial development policies, but without clear land zoning and strict regulations, the factories discharged toxic and heavy metal wastewater into the irrigation system, resulting in agricultural land and the crops were contaminated, and threatened the public food safety. EPA 2011 announcement data shows that nearly 80% of contaminated agricultural land is completely remediated, and it is claimed that the improvement in contaminated agricultural land has reached some success. However, current research indicates that most Taiwan's contaminated agricultural land remediation methods, only buried the contaminated soil into the ground, not really cleaned away the pollutants. On the other hand, the government nor actively improve pollution sources, and therefore some of the agricultural land even after remediation polluted again, which must be remediated again. This situation, many scholars can't help but question what the real significance of such remediation. 　　In recent years, because of technical limitations and remediation　funding pressure on contaminated land, there is no longer only consideration in remediation, but through the concept of risk, by changing land-use patterns, so that contaminated land can be reused or revitalized. The researches on reuse of contaminated agricultural land in Taiwan, most suggest contaminated agricultural land change for non-agricultural use, and even think the benefit of contaminated agricultural land after remediation if keep agricultural use is low. However, this study suggests that past researches neglect the multifunctionality of agriculture, in addition to the value of goods, but there are still many non-commodity values, including environmental, ecological, landscape and other benefits. 　　For this viewpoint, this study concentrates on the reuse of contaminated agricultural land after remediation, and gives first place to grow non-food crops. There are two parts to discuss, including why contaminated agricultural land need to reuse, and how to reuse. First, the study establish the theoretical foundation of contaminated agricultural land reuse, which based on the risk principles of contaminated land reuse and multifunctionality of agriculture. Then, to further develop three contaminated agricultural land reuse programs, including the "trees", "energy crops", "flowers or landscape crop", etc. This study suggests that if contaminated agricultural land after remediation can implement the three reuse programs, it can not only take into account the risk principle and multifunctionality of agriculture, but also avoid threats to food safety, as well as saving the government follow-up management costs. Next, Hemei Township, Changhua County, as a case study, using depth interview for the Hemei town contaminated agricultural land's farmers and Changhua County public servant who deal with contaminated agricultural land remediation. Survey the actual situation and subsequent use difficulties of contamination agricultural land after remediation, as well as their ideas and suggestions of contaminated agricultural land reuse. 　　Finally, through a literature review and interviews results obtained the following conclusions: (1) the main remediation method of contaminated agricultural land in Taiwan is to bury the contaminated soil into the ground, and it causes damage on agricultural land; (2) contaminated agricultural land even after remediation may still be contaminated again; (3) contaminated agricultural land after remediation is mainly long-term fallow; (4) dealing with contaminated agricultural land in Taiwan is in violation of basic reuse principles. Therefore, this study suggests the following policy recommendations for how the contaminated agricultural land to reuse: (1) promote contaminated agricultural land grow non-food crops, it can create many benefits; (2) the central level government establish contaminated agricultural land reuse policies; (3) the designation of the high risk of contaminated agricultural land area, give the first place to help grow non-food crops. In addition, the necessary supporting measures include: (1) select the appropriate reuse program by regional conditions, and provide technical help and sales counseling; (2) emphasize the control of pollution sources, and make industrial producers shoulder the responsibility for the pollution.

In this thesis, the phenomenon of intercategorial polysemy is approached from two related but previously unconnected perspectives, namely that of linguistic creativity and mental representation. It is argued that the creativity that is part and parcel of the linguistic abilities of each and every human being, has been neglected in the study of linguistics, and should, in fact, form the basis of studies such as these in cognitive lexical creativity. It is argued that structural productivity (the generative view of linguistic creativity) and conceptual creativity lie on a continuum, the middle ground of which is covered by phenomena which are both productive and creative and which have both a formal and a semantic aspect to them. One such a phenomenon is intercategorial polysemy. Explaining the way in which speakers of a language such as English can systematically and productively produce and interpret words that belong to more than one syntactic category (for example, hammerN - hammerV, tableN - tableV, skyN - skyV), which may range from the conventionalised to the completely innovative, has long been a problem for linguists. Traditional morphological accounts involving theoretical notions such as zero derivation have always been found to be inadequate, mostly because zero derivation does not account for the variation in meaning and the background knowledge that is needed to produce and interpret novel instances. The main problem addressed in this thesis then is the question as to the nature of the lexical knowledge of speakers and its mental representation, so that it can form the basis for the cognitive processes that will enable language users to be linguistically creative. Various theoretical models that have been proposed to account for intercategorial polysemy, namely the representationalderivational model, the network-activation model, as well as the theory of conceptual integration (also called blending), are presented and evaluated in the light of a representative sample of completely novel instances of intercategorial polysemy. / Linguistics and Modern Languages / D. Litt. et Phi. (Linguistics)