The detrimental consequences associated with industrial models of food production are becoming more difficult to ignore. In response, one dominant approach to mitigating the myriad environmental, social, and ethical harms relating to food has sought to increase the efficiency of agricultural outputs through scientific and technological innovation. Although technology certainly has some role to play in any vision of a sustainable future, technocratic approaches to problem solving are insufficient—and arguably inappropriate—for addressing many of the kinds of complex challenges that we face today. There are recent indications that both agri-food law and policy and innovation policy are being taken more seriously in Canada, which creates an opportunity to reflect more deliberately on their ends and means. This dissertation explores the topic of how laws, policies, and other tools of governance can work to better align technological innovations in the agri-food sector with shared environmental goals and ethical aspirations. Taking a critical legal perspective closely informed by feminist insights and the work of existing, analogous justice movements, I examine several interlinkages between technology, law, the environment, and society to evaluate some of the failings of existing approaches to food systems transformation and to offer a contribution to the conversation about alternative pathways. Given the context-specific nature of food systems and food systems governance, my focus is primarily on Canada, but the universal importance of food in a globalized world renders some comparative and transnational discussion unavoidable. I use case studies and discourse analysis to demonstrate that, when considered through a justice-oriented lens, several of the new and emerging technologies being championed in the agri-food sector may not be as beneficial as their proponents claim. Instead, they may serve to retrench injustice and cement existing, exploitative power structures, making them more difficult to challenge and change later down the line. Thus, if technologies are to serve public instead of private interests in the ways they are incentivized, designed, regulated, and used, we will need to see broad systemic and structural reforms informed by thoughtful shifts in our values and priorities, rather than merely reactive adjustments to our policies and practices. Though this undertaking will be difficult, it is not impossible; this dissertation offers one way to facilitate the process of seeding change for environmental sustainability and technological justice.

La progression tumorale est un processus multi-étapes dépendant notamment des interactions entre les cellules cancéreuses et le stroma environnant. Le développement du cancer du sein implique une communication étroite entre les cellules épithéliales mammaires, les cellules inflammatoires, les myofibroblastes et les cellules endothéliales. Ainsi, le microenvironnement tumoral apparaît comme une cible de choix dans le traitement anti-tumoral. L’utilisation de modèles précliniques est une étape clé dans le développement et la validation de nouvelles thérapies. Néanmoins, peu d’études sont disponibles sur le rôle du stroma péri-tumoral dans ces modèles.Dans le but d’étudier le stroma péri-tumoral des modèles précliniques de cancers du sein, nous avons combiné une analyse par cytométrie en flux à une analyse par immunohistochimie afin d’identifier, puis de quantifier, les différentes populations stromales hématopoïétiques (lymphocytes, monocytes/macrophages, polynucléaires) et non hématopoïétiques (myofibroblastes, cellules endothéliales). Vingt et un modèles de xénogreffe de tumeurs humaines de cancers du sein ainsi que 2 modèles transgéniques (MMTV-PyMT et MMTV-ErbB2), ainsi que leurs allogreffes respectives, furent utilisés lors de ce travail.Les analyses des tumeurs humaines et murines ont montré un infiltrat stromal très hétérogène d’une tumeur à l’autre, avec pour composante majoritaire les macrophages. Un infiltrat important en polynucléaires a également été détecté dans les modèles de PDX, caractéristique d’une inflammation locale importante dans ces modèles. L’analyse phénotypique de macrophages a montré une expression variable de marqueurs M1 et M2 dans les modèles de PDX. Les macrophages issus de tumeurs murines transgéniques, spontanées ou allogreffées, présentaient quant à eux un profil majoritairement M1. L’étude transcriptomique de macrophages triés, a permis à la fois de valider les résultats obtenus au niveau protéique mais a également mis en évidence des différences majeures dans l’expression de nombreux gènes, impliqués dans des voies de signalisation variées telles que la croissance tumorale, l’invasion et la métastase.Cette étude nous a permis de mettre en évidence le rôle de la tumeur sur son microenvironnement. En effet, celle-ci est à la fois capable d’attirer un panel de cellules stromales qui lui et propre et ensuite de l’activer de façon spécifique. / Tumor development is a multi-step process influencing by interactions between tumor cells and surrounding stroma. Breast cancer development involves a high level of communication between mammary epithelial cells, inflammatory cells, myofibroblasts and endothelial cells. So, the tumoral microenvironment appears as a prime target for anti-tumoral treatment. The use of preclinical models is a critical step in development and validation processes of new therapies. Nevertheless, the role of stroma in these models is poorly understood.In order to evaluate stromal cell populations in breast cancer preclinical models, we combined flow cytometry analysis and immunohistochemistry to identify, and then quantify, various stromal populations as hematopoietic cells (lymphocytes, monocytes/macrophages, polymorphonuclear leukocytes) and non-hematopoietic cells (myofibroblasts, endothelial cells). Twenty-one breast cancer patient-derived xenografts as well as 2 transgenic mouse models (MMTV-PyMT and MMTV-ErbB2), and their respective allografts, were studied.Analysis of human and murine tumors showed a strong heterogeneity between tumors regarding infiltrating stroma-cells, with a high proportion of macrophages. A significant amount of polymorphonuclear leukocytes was also detected in PDXs, indicating a local inflammation in these models. The phenotypic analysis of macrophages showed a variable expression of M1 and M2 markers in PDXs. Macrophages infiltrating transgenic mouse tumors, spontaneous or allografted, were mainly M1. Transcriptomic analyses of sorted macrophages, allowed us to validate previous results but also highlighted major differences in the expression of numerous genes implicated in various pathways as tumor growth, invasion and metastasis.Finally, this study highlighted the impact of tumor cells on their surrounding stroma. Indeed, we demonstrate that cancer cells are able to attract a specific panel of stromal cells and activate them in a specific way.

Cotton makes up a majority of the world’s fiber market, with genetically engineered (GE) cotton the current staple of the US agricultural landscape. With GE cotton’s overall acceptance for US farmers and manufacturers, it is of concern that the majority of literature concerning GE crops primarily compares negative attitudes towards GE food crops in stricter economies such as the European Union. Due to the inadequate literature regarding both the market advantages and consumer perceptions of GE cotton specifically, this study was conceived to provide marketers with a baseline analysis of the factors that affect US consumers’ current attitudes (knowledge, risk perceptions, etc.) regarding GE cotton. Multiple regression analyses were used for our models which measured purchase intentions towards GE cotton and perceived risks of GE cotton based on both intrinsic and extrinsic factors. Paired and single t-tests were performed to predict the current positioning of GE cotton as a marketable alternative to organic and conventional cotton, and to determine which institutions consumer’s trust most for information on the risks and benefits of GE cotton. Our studies showed that while knowledge of cotton and agriculture is low, GE cotton was regarded more positively than conventional cotton with the potential to improve in consumer’s opinions. According to our findings, by efficiently communicating the benefits of GE cotton through trusted channels of communication (i.e. scientists, consumer organizations, the media), particularly addressing ethical concerns, policy regulation, and how the product is useful to the consumer individually, GE cotton could become a comparative market alternative to organic, at a greater available supply. / text

Submitted by Mateus Ferraz Dias (mateusdias91@gmail.com) on 2017-06-11T04:22:33Z No. of bitstreams: 1 masters_thesis.pdf: 507645 bytes, checksum: 4af3657d071b94926dc8acc71004616d (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2017-06-12T11:57:08Z (GMT) No. of bitstreams: 1 masters_thesis.pdf: 507645 bytes, checksum: 4af3657d071b94926dc8acc71004616d (MD5) / Made available in DSpace on 2017-06-12T12:52:11Z (GMT). No. of bitstreams: 1 masters_thesis.pdf: 507645 bytes, checksum: 4af3657d071b94926dc8acc71004616d (MD5) Previous issue date: 2017-05-26 / Este trabalho estima o impacto do glifosato sobre indicadores de saúde infantil no Brasil, no período de 2000 a 2009, explorando a adoção da soja transgênica no Brasil e a estrutura hidrográfica do país (ottobacias). Nossos resultados indicam um aumento nas taxas de nascimentos de baixo peso e mortalidade infantil, concentradas em causas de morte associadas aos efeitos esperados do glifosato e em crianças expostas ao glifosato durante o primeiro trimestre de gravidez (período em que o feto é mais suscetível a efeitos negativos sobre seu desenvolvimento). Assim, os resultados sugerem que a regulação do glifosato como herbicida pode ser melhorada levando-se em conta os efeitos negativos sobre a saúde humana, hoje negligenciados. / This work estimates the impact of glyphosate on infant health indicators in Brazil, between 2000 and 2009, exploiting the adoption of genetically engineered soy in Brazil and the country’s hidrographic structure (ottobasins). Our results indicate an increase in low weight birth rate and infant mortality rate, concentrated on death causes associated to glyphosate’s expected effects and on children exposed to glyphosate during the first trimester of pregnancy (when the fetus is more susceptible to negative developmental effects). Hence, the results suggest that regulation regarding use of glyphosate as herbicide can be improved taking into account the nowadays neglected negative effects on human health.

Orientador: Reginaldo Carmello Corrêa de Moraes / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciências Humanas / Made available in DSpace on 2018-08-16T09:02:59Z (GMT). No. of bitstreams: 1 Martins_AlineReginaAlves_M.pdf: 1760602 bytes, checksum: 3f07652f2e5bc30bce7034d78ede205f (MD5) Previous issue date: 2010 / Resumo: Com a Revolução Científica e Tecnológica (1970), a informação e o conhecimento transformam-se em fontes de maior produtividade e de desenvolvimento socioeconômico. No mundo agrário, os Organismos Geneticamente Modificados, também denominados transgênicos, representam a conformação dessa nova dinâmica tecnológica internacional. Em uma economia diretamente enraizada na produção e uso de conhecimentos, este trabalho prima pela investigação da existência de uma monopolização das técnicas transgênicas por determinadas empresas e países restringindo as possibilidades de concorrência no setor de sementes geneticamente modificadas, o que prejudicaria países menos avançados em biotecnologia agrícola. Em que medida conhecimentos e tecnologias de ponta estão organizados em fluxos globais ou estão inseridos em uma estrutura assimétrica, estabelecendo uma divisão entre os países capazes de participar dos processos de geração de novas tecnologias agrícolas e aqueles que passivamente absorvem conhecimentos advindos do exterior? Como a polarização de conhecimentos e informações estratégicos acarretaria e perpetuaria desigualdades na economia global e quais são os mecanismos jurídicos e políticos que corroborariam essa concentração? / Abstract: In the Scientific-Technical Revolution (1970), information and knowledge are transformed in sources of higher productivity and socioeconomic development. In agriculture, the genetically modified organisms represent the conformation of that new international technological dynamic. In an economy directly rooted in the production and use of knowledge, this research primarily investigates the existence of a monopoly in the field of genetically modified seeds by certain companies and countries, which would undermine less advanced countries in agricultural biotechnology. To what extent are technology and information organized into global flows or in an asymmetric structure establishing a division between countries able to participate in the process of generating new agricultural technologies and those who passively absorb knowledge coming from outside? How the polarization of strategic knowledge and information would result and perpetuate inequalities in the global economy and what legal and political mechanisms support this concentration? / Mestrado / Política Externa / Mestre em Relações Internacionais

This thesis addresses the puzzle of variation in first-generation regulatory policies for controversial science and technology, as demonstrated in the cases of agricultural genetically modified organisms (GMOs) and human embryonic stem cell research in the United Kingdom and the United States. Why did policy outcomes vary in each technology case? This study answers this question by placing greater emphasis on institutional factors. Although works within institutional analysis, bureaucracy and regulation literatures make significant progress in revealing how existing institutions can shape outcomes, how far one can characterize bureaucratic behavior and whether interest groups capture regulation, they nevertheless create an opening for research that: describes a mechanism for path dependence to explain variation in policies; shows the degree to which bureaucratic behaviors can influence outcomes; and, highlights instances in which regulatory officials hold power. This thesis makes an original contribution by providing new historical details relating to these cases, and by providing an extensive elaboration of Pierson’s criteria for increasing returns and a so-called secondary test of path dependence to explain outcomes. The study recounts the biography of key policy documents in each case by tracing the process of decision-making through government and archival sources, secondary literature and more than 40 elite interviews. In doing so, it details the activities of key governmental bodies within the European Union, UK and US. Moreover, it shows how the Coordinated Framework (1986) and Human Fertilisation and Embryology Act 1990 framework represented decision-making structures which triggered changes in actors and interests and shaped permissive outcomes for GMOs and stem cell research in the US and UK, respectively. Furthermore, lack of comparable structures may help account for restrictive policies for GMOs in Europe and the UK, and for stem cell research in the US.