Made available in DSpace on 2014-07-29T14:49:10Z (GMT). No. of bitstreams: 1 Dissertacao Mavine Pereira Barbosa Monteiro.pdf: 1704398 bytes, checksum: 3e8f45ec1c515688e890585ce8b2b04b (MD5) Previous issue date: 2011-03-29 / This thesis assumes that the externalities caused by lack of information about the safety of our food are caused mostly by lack of information, which characterizes a market failure, in which the latter cannot coordinate integration between the various players in this market, as producers and consumers, exporters and importers, what economists call the information asymmetry. Lack of information increases transaction costs, since consumers do not have access to perfect information about the products they consume, with damage costs will have to investigate the origin of the food they are buying. This theory also applies to the costs of informational asymmetry that producers face, since they also need to know about the origin and quality of inputs they use in production, so that the product certification and seed emerges as a solution to the problem of information asymmetry. According to the theoretical framework of New Institutional Economics, contracts assist in the reduction of transaction costs in the operation of an economy, and the informational asymmetry is one of these transaction costs, which causes a market failure. For this study we analyzed the possible certification as an inhibitor of such asymmetric information, since this is also a contract that the producers of some good firm with a public or private institution with a commitment to meet pre-established norms and that the information on the origin, quality, validity and other important features are exposed in the certification seal of the product, inspiring confidence for potential buyers of the product and possibly raising the value-added product. For this study examined the case of a possible certification of geographical indication for the bean seeds produced by an association of producers in the floodplains of river Javaés, arm of the Araguaia River, in the municipality of Lagoa Confusion in the state of Tocantins, where he addressed the potential economic benefits for producers and local economy of the region and the sustainability and environmental impacts that the intensive cultivation in tropical wetlands can cause to the ecosystem of that region. / Esta dissertação parte do pressuposto de que as externalidades causadas pela falta de informação sobre a segurança dos alimentos são causadas, na maioria das vezes, por falta de informações, o que caracteriza uma falha de mercado, na qual este último não consegue coordenar a integração entre os diversos atores neste mercado, como os produtores e consumidores, exportadores e importadores, o que os economistas denominam de assimetria informacional. A falta de informação faz aumentar os custos de transação, visto que o consumidor não tendo acesso à informação perfeita sobre os produtos que consomem, terão prejuízos com custos na investigação da origem do alimento que estão comprando. Essa teoria também se aplica aos custos da assimetria informacional que os produtores estão sujeitos, pois estes também precisam saber sobre a origem e qualidade dos insumos que utilizam na produção, desta forma a certificação dos produtos e sementes surge como solução para o problema da assimetria informacional. Segundo o arcabouço teórico da Nova Economia Institucional, os contratos auxiliam na redução de custos de transações presentes no funcionamento de uma economia, e a assimetria informacional constitui um desses custos de transação, o que causa uma falha de mercado. Para este trabalho analisamos a certificação como uma possível inibidora dessas informações assimétricas, já que também se trata de um contrato que os produtores de certo bem firmam com uma instituição pública ou privada com o compromisso de cumprir normas preestabelecidas e que as informações sobre a origem, qualidade, validade e outras características importantes estarão expostas no selo de certificação do produto, inspirando confiança para os potenciais compradores do produto e possivelmente elevando o valor agregado do produto. Para este estudo foi analisado o caso de uma possível certificação por Indicação Geográfica para as sementes de feijão produzidas por uma associação de produtores nas várzeas do rio Javaés, braço do rio Araguaia, no município Lagoa da Confusão no estado do Tocantins, onde se abordou os possíveis benefícios econômicos para os produtores e economia local da região e a sustentabilidade e impactos ambientais que o cultivo intensivo em várzeas tropicais pode provocar para o ecossistema daquela região.

As plantas, assim como outros organismos, possuem a capacidade de se defenderem contra ataque de patógenos. Uma das respostas desencadeadas pelo reconhecimento do patógeno pelas células vegetais é a reação de hipersensibilidade (RH), que envolve a morte imediata das células do sítio primário de infecção, oferecendo resistência ao crescimento do patógeno. Muitas evidências sugerem a participação da mitocôndria neste processo de morte celular programa. O nim (Azadirachta indica) é conhecido devido as suas propriedades medicinais e inseticidas, sendo que os estudos sobre a ação inseticida dessa planta restringem-se a análise de seus mecanismos de ação sobre insetos e também de seus efeitos sobre trabalhadores rurais que fazem uso de produtos a base de nim. Entretanto não há na literatura pesquisada, trabalhos de seus impactos sobre o sistema vegetal. A partir dos resultados previamente obtidos em nosso laboratório e com as análises dos dados da literatura, consideramos de grande importância dar continuidade a esse estudo do efeito do nim como elicitor, avaliando quais mecanismos que levam ao fenômeno de resistência vegetal. O extrato de nim (EB) foi preparado a partir das sementes, sendo caracterizado bioquimicamente pela quantificação de compostos fenólicos, açúcares e proteínas. A atividade antioxidante foi avaliada sendo possível observar que o extrato das sementes de nim possui forte atividade antioxidante de maneira dose-dependente com IC50 de 14,85 mg/mL. Para os ensaios biológicos foi utilizado EB nas concentrações de 0,1 a 5 mg/mL isolado ou em associação com AS a 1 µmol/L ou 1 mmol/L. Para determinação da morte celular foi observado o efeito do EB nas concentrações de 5 e 0,1 mg/mL isolado ou em associação com AS 1 µmol/L nos tempos de 0 a 8 horas. Diante dos resultados foi observado que o EB na concentração de 0,1 mg/mL isolado ou em associação com AS 1 µmol/L foi capaz de causar morte celular em células de Rubus fruticosus de forma mais significativa do que o EB isolado ou em associação com AS na concentração de 5 mg/mL. No tempo de 8 horas, foi observado uma porcentagem de morte celular de 64 % para células elicitadas com EB 0,1 mg/mL isolado e 71 % para células elicitadas com EB 0,1 mg/mL em associação com AS. A diminuição da produção de EROs e da produção de AS endógeno bem como o aumento da produção de compostos fenólicos foi observado em células intactas elicitadas com EB isolado. No entanto quando a células foram elicitadas com EB em associação com AS observamos uma diminuição da produção de compostos fenólicos com o aumento da produção de AS endógeno. Em mitocôndrias isoladas foi avaliado o consumo de oxigênio, o potencial de membrana e a produção de EROs com o EB isolado e sua associação com AS 1 mmol/L. Foi observado que o EB isolado ou em associação com AS foi capaz de diminuir a velocidade de consumo de oxigênio pela cadeia respiratória sendo este efeito mais acentuado quando o nim foi administrado juntamente com AS, onde a porcentagem de inibição da velocidade de consumo de oxigênio pela cadeia respiratória na presença de EB em associação com AS foi de 79 % no estado 3 da respiração e 62 % no estado 4. Sobre o potencial de membrana observamos que o EB isolado ou em associação com AS foi capaz de diminuir o potencial de membrana, porém de forma pouco significativa. Para a produção de EROs observamos que o EB isolado foi capaz de diminuir a produção de EROs em mitocôndrias isoladas em cerca de 55 a 20 % na presença de antimicina A e 39 a 10 % na presença de rotenona, porém quando o EB foi administrado juntamente com AS observamos uma diminuição da produção de EROs somente para o EB nas concentrações de 0,5; 1 e 5 mg/mL. Com os resultados apresentados neste trabalho e os resultados obtidos anteriormente em nosso laboratório é possível sugerir que o extrato das sementes de nim possui um efeito protetor sobre células de Rubus fruticosus. / Plants, like other organisms, have the capacity to defend themselves against attack by pathogens. One of the responses triggered by pathogen recognition by plant cells is the hypersensitive response (HR), which involves the immediate death of cells in the primary site of infection, providing resistance to the pathogen growth. In this regard, it has been well established that mitochondria are involved in cell death. The neem tree (Azadirachta indica) is known due to its medicinal and insecticidal properties; studies on the insecticidal action of this plant had been restricted to the analysis of their action mechanisms on insects and their effects on rural workers who use neem-based products. However, its impact on plant systems has not been addressed. Considering previous results from our laboratory and literature data we assessed the effects of neem as elicitor, particularly the mechanisms leading to the phenomenon of plant resistance. The neem extract (EB) was prepared from the seeds, characterized biochemically by quantification of phenolic compounds, sugars and proteins. The extract showed strong dose-dependent antioxidant activity (IC50 of 14.85 mg/mL). EB concentrations of 0.1-5 mg/mL, alone or in association with 1 mol/L or 1 mmol/L SA (salicylic acid), were used for the biological assays. For cell death assays, EB was employed in concentrations of 0.1 and 5.0 mg/mL, alone or in association with 1 mol/L SA, during 0-8 hours. EB (0.1 mg/mL), alone or in association with 1 mol/L SA, induced Rubus fruticosus cell death more efficiently than EB alone or in association with 5 mg/mL SA. After 8 hours, a 64% of death of cells elicited with 0.1 mg/mL EB and 71% of death of cells elicited with 0.1 mg/mL EB in association with SA, was observed. Decrease in ROS generation and production of endogenous SA, as well as increased production of phenolic compounds, was observed in intact cells elicited with EB alone. However, when cells were elicited with EB in association with SA, a decreased production of phenolic compounds and an increased production of endogenous SA, was observed. In isolated mitochondria, it was measured oxygen consumption, membrane potential and ROS production for EB alone or in association with 1 mmol/L SA. In either conditions, EB decreased oxygen consumption by the respiratory chain, an effect more pronounced in association with SA: ~79 % inhibition for state 3 and ~ 62 % for state 4 respiration. Also, either neem alone or in association with SA decreased mitochondrial membrane potential, as well as ROS generation to an extent of 55-20% in the presence of antimycin A and 39-10% in the presence of rotenone; in association with SA, EB decreased ROS at 5, 1 and 0.5 mg/mL. Together with our previous study, these results suggest that neem seeds extract has a protective effect on Rubus fruticosus cells by scavenging, via phenolic compounds, reactive oxygen species generated by SA, thereby decreasing its action as cell death inducer.

There has been a growing understanding in recent years of the links between conflict emergence and horizontal inequalities and increased focus on the role which development policies can play in both ameliorating and exacerbating the root causes of violent conflict. This study tests the empirical relationship between horizontal inequalities and conflict causation using the Sri Lankan ethnic conflict as a case study. The analysis shows robust support for the empirical relationship between horizontal inequality (which encompasses political, economic, social and cultural dimensions) and the emergence of violent conflict in Sri Lanka. In this context of inequality, Tamil leaders, who faced political exclusion, and their followers, who themselves experienced inequitable access to employment, education opportunities, assets, were inspired to mobilise and engage in armed violence. Thus, the ethnic conflict stemmed from the disillusionment, frustration and increasing radicalisation of Tamils in their attitude towards the Sri Lankan state, rejecting what they perceived as exclusionary policies. The Liberation Tigers of Tamil Eelam (LTTE) emerged as a key protagonist in the conflict, with an expressed view to establish a Tamil homeland in Sri Lanka. While most post war development policies are strongly aligned to government objectives, there are very little steps taken towards the design and adoption of policies to ameliorate horizontal inequalities. Instead, the government has identified security issues and economic growth as the cornerstone in the post war development process, and they are given greater emphasis in policies compared to underlying causes of violent conflict: inequalities in access to political power, economic resources and/or cultural status. Most Sri Lankan state actors are either not mandated to address equality issues or prefer conflict sensitive approaches to post war development. In general, there is a weak approach to conflict sensitivity in early post war development and reconstruction strategies (from 2009 to 2013). Likewise, there is relatively little attention paid to other conflict sensitive causes and dynamics such as the nature of the political system ii and problems of human rights. The failure to address fundamental issues relating to minority Tamil grievances has the potential to re-ignite the conflict. / Development Studies / D. Litt. et Phil. (Development Studies)

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There has been a growing understanding in recent years of the links between conflict emergence and horizontal inequalities and increased focus on the role which development policies can play in both ameliorating and exacerbating the root causes of violent conflict. This study tests the empirical relationship between horizontal inequalities and conflict causation using the Sri Lankan ethnic conflict as a case study. The analysis shows robust support for the empirical relationship between horizontal inequality (which encompasses political, economic, social and cultural dimensions) and the emergence of violent conflict in Sri Lanka. In this context of inequality, Tamil leaders, who faced political exclusion, and their followers, who themselves experienced inequitable access to employment, education opportunities, assets, were inspired to mobilise and engage in armed violence. Thus, the ethnic conflict stemmed from the disillusionment, frustration and increasing radicalisation of Tamils in their attitude towards the Sri Lankan state, rejecting what they perceived as exclusionary policies. The Liberation Tigers of Tamil Eelam (LTTE) emerged as a key protagonist in the conflict, with an expressed view to establish a Tamil homeland in Sri Lanka. While most post war development policies are strongly aligned to government objectives, there are very little steps taken towards the design and adoption of policies to ameliorate horizontal inequalities. Instead, the government has identified security issues and economic growth as the cornerstone in the post war development process, and they are given greater emphasis in policies compared to underlying causes of violent conflict: inequalities in access to political power, economic resources and/or cultural status. Most Sri Lankan state actors are either not mandated to address equality issues or prefer conflict sensitive approaches to post war development. In general, there is a weak approach to conflict sensitivity in early post war development and reconstruction strategies (from 2009 to 2013). Likewise, there is relatively little attention paid to other conflict sensitive causes and dynamics such as the nature of the political system ii and problems of human rights. The failure to address fundamental issues relating to minority Tamil grievances has the potential to re-ignite the conflict. / Development Studies / D. Litt. et Phil. (Development Studies)

<p>The present dissertation is a translation and analysis of the chapter on <i>anumāna</i> in Vallabha’s <i>Nyāyalīlāvatī,</i> based on certain theoretical considerations on cross-cultural translation and the understanding of tradition. Adopting a non-essentialized and non-historicist conceptualization of the Nyāya-Vaiśeṣika/Navya-nyāya tradition, the work focuses on a reading of the <i>anumāna</i> chapter that is particularized and individualized. It further argues for a plurality of interpretative stances within the academic field of Nyāya-Vaiśeṣika/Navya-nyāya studies, on the grounds that the dominant stance has narrowed the scope of research. With reference to post-colonial theory, this dominant stance is understood in terms of a certain strategy called “mimetic translation”.</p><p>The study of the <i>anumāna</i> chapter consists of three main interpretational sections: translation, comments, and analysis. The translation and comments focus on understanding issues internal to the <i>Nyāyalīlāvatī. </i>The analysis focuses on a contextual interpretation insofar as the text is understood through reading other texts within the Nyāya-Vaiśeṣika/Navya-nyāya discourse. The analysis is further grounded in a concept of intertextuality in that it identifies themes, examples, and arguments appearing in other texts within the discourse. The analysis also identifies and discusses Cārvāka and Mīmāṁsaka arguments within the <i>anumāna</i> chapter.</p><p>Two important themes are discerned in the interpretation of the <i>anumāna</i> chapter: first, a differentiation between the apprehension of <i>vyāpti</i> and the warranting of this relation so as to make the apprehension suitable for a process of knowledge; second, that the sequential arrangement of the subject matter of the sections within the chapter, <i>vyāptigraha</i>, <i>upādhi</i>, <i>tarka</i>, and <i>parāmar</i>śa, reflects the process of coming to inferential knowledge.</p><p>The present work is a contribution to the understanding of the post-Udayana and pre-Gaṅgeśa Nyāya-Vaiśeṣika/Navya-nyāya discourse on inferential knowledge and it is written in the hope of provoking more research on that particular period and discourse in the history of Indian philosophies.</p>

The present dissertation is a translation and analysis of the chapter on anumāna in Vallabha’s Nyāyalīlāvatī, based on certain theoretical considerations on cross-cultural translation and the understanding of tradition. Adopting a non-essentialized and non-historicist conceptualization of the Nyāya-Vaiśeṣika/Navya-nyāya tradition, the work focuses on a reading of the anumāna chapter that is particularized and individualized. It further argues for a plurality of interpretative stances within the academic field of Nyāya-Vaiśeṣika/Navya-nyāya studies, on the grounds that the dominant stance has narrowed the scope of research. With reference to post-colonial theory, this dominant stance is understood in terms of a certain strategy called “mimetic translation”. The study of the anumāna chapter consists of three main interpretational sections: translation, comments, and analysis. The translation and comments focus on understanding issues internal to the Nyāyalīlāvatī. The analysis focuses on a contextual interpretation insofar as the text is understood through reading other texts within the Nyāya-Vaiśeṣika/Navya-nyāya discourse. The analysis is further grounded in a concept of intertextuality in that it identifies themes, examples, and arguments appearing in other texts within the discourse. The analysis also identifies and discusses Cārvāka and Mīmāṁsaka arguments within the anumāna chapter. Two important themes are discerned in the interpretation of the anumāna chapter: first, a differentiation between the apprehension of vyāpti and the warranting of this relation so as to make the apprehension suitable for a process of knowledge; second, that the sequential arrangement of the subject matter of the sections within the chapter, vyāptigraha, upādhi, tarka, and parāmarśa, reflects the process of coming to inferential knowledge. The present work is a contribution to the understanding of the post-Udayana and pre-Gaṅgeśa Nyāya-Vaiśeṣika/Navya-nyāya discourse on inferential knowledge and it is written in the hope of provoking more research on that particular period and discourse in the history of Indian philosophies.

Beyond the Binary explores the intersection of gender with cross-cultural identity in composer Reena Esmail's professional life and choral music. This intersection manifests in her musical style, which accesses the resonant spaces between Western and Indian classical music. I argue that it is through the convergence of Esmail's gender identity with her cross-cultural identity that her compositions challenge gender norms and break down perceived barriers between East and West, inviting her listeners into an intersectional feminist space. This project synthesizes musicological, theoretical, and ethnographic methods, and is meant as a starting point for choral musicians and scholars to consider cultural difference and its impact on choral music. What begins as a consideration of social themes within Esmail's life and work culminates in a practical musical analysis and performance practice guide to aid conductors in preparation of Esmail's music. The compositions discussed are I Rise: Women in Song (2016), Take What You Need (2016), TaReKiTa (2016), Tuttarana (2014), and This Love Between Us: Prayers for Unity (2016).

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