We present recent results on a binary threshold sensor based on the binary zero-power sensor (BIZEPS) platform which is able to use the energy provided directly from the measured relative humidity of the ambient air to mechanically switch an electrical micro contact. This zero-power switch behavior is realized by using the humidity-sensitive volume swelling of a polymer layer as the detection element deflecting a mechanically deformable silicon boss structure, thus closing the electrical contacts of the switch. For the humidity-sensitive sensor switch considered here, a humidity-sensitive hydrogel blend of poly(vinyl alcohol) and poly(acryl acid) was used. The sensitive part affected by the measurand is completely separated from the electrical part, thus providing long-term stability. By using an inverse silicone stamping technique the polymer layer with a thickness of about 15 μm was patterned on test structures possessing a thin silicon flexure plate of 5 mm x 5 mm in size and 20 μm in thickness. Reproducible deformations of up to 15 … 24 μm has been measured. Investigations of the swelling kinetics showed for several discrete relative humidity values a saturation of the water load. The time to reach this saturation state is reduced from 5 hours down to approx. 20 min by increasing the relative humidity beyond the threshold value of 70% r.H. A significant influence of the temperature to the humidity load could not be observed.

We are today experiencing an increasing demand for high energy density storage devices like the lithium-ion battery for applications in portable electronic devices, electric vehicles (EV) and as interim storage for renewable energy. High capacity retention and long cycle life are prerequisites, particularly for the EV market. The key for a long cycle life is the formation of a stable solid-electrolyte interphase (SEI) layer on the surface of the negative electrode, which typically forms on the first cycles due to decomposition reactions at the electrode-electrolyte interface. More control over the surface layer can be gained when the layer is generated prior to the battery operation. Such a layer can be tailored more easily and can reduce the loss of lithium inventory considerably. In this context, water-soluble electrode binders, e.g. sodium carboxymethyl cellulose (CMC-Na) and poly(acrylic acid) (PAA), have proven themselves exceptionally useful. Since the binder is a standard component in composite electrodes anyway, its integration into the electrode fabrication process is easily accomplished. This thesis work investigates the parameters that govern binder distribution in elec-trode coatings, control the stability and electrochemical performance of the elec-trode and that determine the composition of the surface layer. Several commonly used electrode materials (graphite, silicon and lithium titanate) have been applied in order to study the impact of the binder on the electrode morphology and the differ-ent electrode-electrolyte interfaces. The results are correlated with the electrochemi-cal performance and with the SEI composition obtained by in-house and synchro-tron-based photoelectron spectroscopy (PES). The results demonstrate that the poor swellability of these water-soluble binders leads to a protection of the active material, given that the surface coverage is high and the binder evenly distributed. Although on the laboratory scale electrode formu-lations with a high binder content are common, they have little practical use in commercial devices due to the high content of inactive material. As the binder con-tent is decreased, complete surface coverage is more difficult to achieve and the binder distribution is more strongly coupled to the particle-binder interactions during the preparation process. Moreover, it is demonstrated in this thesis how these inter-actions are related to the surface area of the electrode components applied, the surface composition and the electrochemistry of the electrode. As a result of the smaller binder contents the benefits provided by CMC-Na and PAA at the electrode surface are compromised and the performance differs less distinctly from electrodes fabricated with the conventional binder, i.e. poly(vinylidene difluoride) (PVdF). Composites of alloying and conversion materials, on the other hand, typically em-ploy binders in larger amounts. Despite the frequently noted resiliency to volume expansion, which is also a positive side effect of the poor swellability of the binder in the electrolyte, the protection of the surface and the formation of a more stable interface are the major cause for the improved electrochemical behaviour, com-pared to electrodes employing PVdF binders.

Este estudo investigou se a qualidade de auditoria aumentou após as modificações implementadas pela ISA 700 revisada, que obrigou a inclusão de itens como os Principais Assuntos de Auditoria (PAAs), considerados mais informativos aos usuários das demonstrações contábeis. Além disso, investigou se os custos associados à auditoria tiveram algum impacto devido a essas novas exigências. A verificação dos possíveis impactos na qualidade de auditoria foi realizada com a utilização da proxy de qualidade das demonstrações contábeis obtida por estimação: (i) dos accruals absolutos anormais pelo Modelo de Kothari et al. (2005) derivado do Modelo de Jones (1991); (ii) dos accruals absolutos anormais pelo Modelo de Dechow e Dichev (2002) modificado; (iii) da qualidade dos accruals das receitas de Stubben (2010) e (iv) do percentual de magnitude dos accruals dos fluxos de caixa de Burgstahler et al. (2006). Os PAAs foram considerados, pois poderiam influenciar em maior qualidade de auditoria, sendo mais informativos aos usuários das demonstrações contábeis, podendo inclusive influenciar em uma gestão menos oportunista dos resultados por parte da administração (mensurado por menores accruals), com resultados ainda conflitantes na literatura contábil. A abordagem quantitativa das estimações foi realizada com dados contábeis e de mercado das companhias de capital aberto do Brasil, dos períodos de 2014 a 2017. A amostra consistiu em 1.554 observações para as quais foram coletadas, de forma manual, as informações sobre as firmas de auditoria responsáveis e as quantidades de PAAs divulgados que poderiam afetar a qualidade de auditoria. A maior parte das regressões, utilizando quatro métricas para os accruals não demonstrou evidências de melhoria na qualidade de auditoria após a adoção da ISA 700 revisada. Tais métricas foram analisadas considerando: (i) Painel A, que verificou a mudança na qualidade de auditoria na comparação do período pré e pós adoção da norma; (ii) Painel B, que incluiu o número de PAAs divulgados e (iii) Painel C, que incluiu as mudanças recorrentes de firmas de auditoria. Para a qualidade dos accruals das receitas foi obtido resultado positivo e significante no nível de 5%, indicando uma possível melhora na qualidade de auditoria. Em contrapartida, o poder explicativo diminuiu devido à alta correlação identificada entre a variável de interesse e a variável de controle que indica especificamente a quantidade de PAAs divulgados. Os honorários de auditoria também foram coletados manualmente, sendo que não apresentaram alterações estatisticamente significantes na comparação do período pré e pós adoção dos novos requerimentos. O presente estudo amplia as discussões acadêmicas para o mercado de capitais brasileiro acerca das implicações da inclusão dos PAAs nos relatórios de auditoria, bem como, na análise dos efeitos práticos da aplicação das normas expedidas pelos órgãos reguladores. Além disso, essa evidência pode auxiliar no aprimoramento das normas na busca por maior qualidade de auditoria e das demonstrações contábeis com foco no usuário que almeja redução de assimetria informacional sobre a realidade econômica das companhias. / This study investigated whether audit quality increased after the modifications implemented by the revised ISA 700, which required the inclusion of items such as Key Audit Matter (KAM), which are considered more informative to the users of the financial statements. Moreover, it investigated whether the costs associated with the audit had any impact due to these new requirements. The verification of possible impacts on audit quality was performed using the quality proxy of the financial statements obtained by estimating: (i) the abnormal absolute accruals by Kothari\'s Model (2005) adapted from the Jones\'s Model (1991); (ii) abnormal absolute accruals by Dechow and Dichev\'s Model (2002); (iii) the quality of accruals revenues of Stubben\'s Model (2010) and (iv) the percentage of magnitude of the accruals of cash flows of Burgstahler et al. (2006). The KAM could influence the quality of the audit, being more informative to the users of the financial statements and may even influence the less opportunistic management of the results by the administration measured by smaller accruals, although there are still conflicting results in the accounting literature. The quantitative approach in the estimates was made with accounting and market data for publicly traded companies in Brazil, from 2014 to 2017. The sample consisted of 1,554 observations for which the information about the responsible audit firms and the amounts of KAM disclosed that could affect audit quality were collected manually. Most of the regressions, using four accruals metrics, did not show evidence of improvement in audit quality after the adoption of ISA 700. These metrics were analyzed considering: (i) Panel A, which verified the change in audit quality in the comparison of the period before and after adoption of the standard; (ii) Panel B, which included the number of PAAs disclosed and (iii) Panel C, which included the recurring changes in audit firms. For the quality of revenue accruals, it was obtained a positive and significant result at the 5% level indicating a possible improvement in audit quality, but the explanatory power decreased due to the high correlation identified between the variable of interest and control variable that specifically indicates the amount of KAM disclosed. The audit fees were also manually collected and did not present statistically significant changes in the comparison of the period before and after the adoption of the new requirements. The present study uses the academic discussions for the Brazilian capital market on the implications of the inclusion of KAM in the audit reports, as well as on the practical effects of the application of the norms issued by the regulatory agencies. In addition, this evidence can help improve standards in the quest for higher audit quality and user-focused financial statements that aim to reduce informational asymmetry about the companies\' economic reality

The purpose of this thesis is to describe and explain the influence of the Practical and Applied Arts on randomly selected comprehensive high school students. The research examined the history of the Practical and Applied Arts, the reasons for students taking the courses, the state of Practical and Applied Arts in Saskatchewan,the future of Practical and Applied Arts, the need for more research, and the effect the courses had on graduates career and education choices (over the ten-year period immediately following high school graduation). <p>Data were collected by an online questionnaire and analyzed using descriptive statistics. The data were analyzed by the researcher. A seven member interpretation panel purposely chosen to represent four different profiles was used to interpret and provide meaning to the data.

The purpose of this thesis is to describe and explain the influence of the Practical and Applied Arts on randomly selected comprehensive high school students. The research examined the history of the Practical and Applied Arts, the reasons for students taking the courses, the state of Practical and Applied Arts in Saskatchewan,the future of Practical and Applied Arts, the need for more research, and the effect the courses had on graduates career and education choices (over the ten-year period immediately following high school graduation). <p>Data were collected by an online questionnaire and analyzed using descriptive statistics. The data were analyzed by the researcher. A seven member interpretation panel purposely chosen to represent four different profiles was used to interpret and provide meaning to the data.

Orientador: Maria Aparecida Anselmo Tarsitano / Resumo: Com a hipótese de que a aquisição de alimentos por meio da política pública do Programa de Aquisição de Alimentos (PAA) tem fortalecido o acesso aos mercados, a organização, a produção e a lucratividade dos agricultores familiares assentados da reforma agrária de Tangará da Serra-MT desenvolveu-se o presente estudo. Realizou-se a pesquisa de campo com a aplicação de formulário de perguntas a agricultores familiares assentados, feita em dois momentos e com objetivos distintos. O primeiro momento, entre junho e julho de 2015, com 14 agricultores familiares assentados, buscou retratar questões socioeconômicas, produtivas, de organização, participação e efeitos quali-quantitativos do PAA na vida e produção destes agricultores. No segundo momento, em novembro de 2015, com três agricultores familiares assentados, procurou-se estimar e analisar os custos de produção e a lucratividade das principais atividades comercializadas com o PAA pelos agricultores familiares assentados. Os resultados apontaram que o PAA promoveu comercialização de produtos agrícolas diversos, aumento da qualidade e quantidade de produtos, com destaque para a produção de banana, mandioca e abóbora, que na comercialização mostram resultados econômicos positivos tanto para o mercado tradicional quanto para o PAA, com desdobramentos positivos quanto à renda e às condições de vida das famílias. No entanto, observou-se que o associativismo tem por finalidade única a comercialização com o programa e que a falta de ar... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: This research was conducted with the hypothesis that the acquisition of food through the public policy of the Food Purchase Programme (PAA) has strengthened access to markets, organization, production and profitability of settled family farmers in agricultural reform of municipality Tangará da Serra, Mato Grosso state, Brazil. The field research was performed based in application of forms, on two different occasions and objectives, to established family farmers. The first time, the form was carried out between June and July 2015 with 14 settled family farmers. It sought to expose socioeconomic, production and organization issues, as well participation and qualitative-quantitative effects of the PAA, in the production and life of these farmers. In the second phase, in November 2015, with three established farmers, the research aimed to estimate and analyze the costs and profitability of the main commercial activities under the PAA by settled established family farmers. The results showed that the PAA promoted the market diversity, and the increase the quality and quantity of products, especially in the production of bananas, cassava and pumpkin that show positive economic results in market, for both traditional market and the PAA, with positive developments related to income and living conditions of families. However, it is observed that the association has the sole purpose of commercializing with the program, and the lack of coordination between public policies results in abs... (Complete abstract click electronic access below) / Doutor

Submitted by Maria Rosa Moraes Maximiano (maria.maximiano@uffs.edu.br) on 2017-06-22T15:07:49Z No. of bitstreams: 1 NUNES.pdf: 2972137 bytes, checksum: da24c9cec1bf11951da9e9989b2864e7 (MD5) / Approved for entry into archive by Diego dos Santos Borba (dborba@uffs.edu.br) on 2017-06-22T16:04:22Z (GMT) No. of bitstreams: 1 NUNES.pdf: 2972137 bytes, checksum: da24c9cec1bf11951da9e9989b2864e7 (MD5) / Made available in DSpace on 2017-06-22T16:04:22Z (GMT). No. of bitstreams: 1 NUNES.pdf: 2972137 bytes, checksum: da24c9cec1bf11951da9e9989b2864e7 (MD5) Previous issue date: 2016-03-10 / Este trabalho estudou as instituições dos mercados de produtos agroecológicos, oriundos da agricultura familiar de Laranjeiras do Sul, em três dinâmicas de comercialização: a feira, as políticas públicas representadas pelo PNAE e PAA e os supermercados. Utilizamos, para isso, a ótica da Teoria Institucional do economista Douglass Cecil North. Para esse autor, as instituições são sustentadas por leis, regras, regulamentos, convênios; tanto os formalmente constituídos como os informais (costumes, tradições, hábitos, crenças, etc). E por meio dessas estruturas convencionais que as instituições atuam na organização social e na dinâmica comercial ao longo do tempo. E derivando disso nasceu o problema a ser pesquisado: o conjunto de instituições que regem a comercialização de produtos agroecológicos restringe ou potencializa a formação e o desenvolvimento do referido mercado? A hipótese lançada é a de que o processo dessa comercialização é mediado por um conjunto de instituições, sendo que prevalecem as que dificultam esse mercado, apesar da criação de políticas públicas como o PNAE e o PAA. Para testar a hipótese, foi necessário responder à objetivos específicos propostos: primeiro, caracterizar a produção agroecológica no Município; segundo, identificar os “jogadores”, ou seja, os participantes e envolvidos no processo; e, por fim, compreender e comparar dos mercados de produtos agroecológicos. Portanto, para cumprir os objetivos dessa pesquisa de caráter qualitativo foi inicialmente elaborada uma revisão teórica sobre os temas relevantes ao assunto, a saber: agricultura familiar, agroecologia, mercados como construções sociais e a abordagem teórica institucional de Douglass North. Na sequência, aponta-se algumas características históricas do município estudado, a fim de entender a dinâmica local ao longo do tempo. Desse modo, no capítulo quatro, a partir do embasamento da teoria estudada e da observação do funcionamento do comercio agroecológico em Laranjeiras do Sul – a partir de entrevistas com feirantes, entidades, representantes de organizações vinculadas, entre outros - foram elencados aspectos particulares de cada meio de comercialização proposto e, posteriormente, traçado os elementos de similaridades e diferenças entre as três dinâmicas. Constatou-se que as instituições informais são preponderantes na feira e que as políticas públicas são impulsionadas pelas regras formais, que em muitos casos limitam a operacionalização desses programas, como é o caso encontrado em Laranjeiras do Sul. Devido a isso, os produtos no PNAE são entregues como convencionais e o PAA nem mesmo está sendo operacionalizado. Nos supermercados existe uma mescla entre instituições formais - quanto à legalização dos produtos e as normas do varejo - e informais; essa última representada pelos anseios dos consumidores e gestores quanto à demanda e a mudança nos hábitos e costumes. / This work studied the institutions of agroecological product markets arising from family farms of Laranjeiras do Sul in three marketing dynamics: the fair, public policy represented by the PNAE and PAA and supermarkets, from the perspective of institutional theory of economist Douglass Cecil North. For this author the institutions are the laws, rules, regulations, formally constituted and informal agreements (customs, traditions, habits, beliefs etc.) and the application of these over time. And that was born deriving the problem to be researched: the set of institutions governing the marketing of agroecological products restricts or enhances the training and development of that market? The hypothesis is that launched the process of that marketing is mediated by a set of institutions, and prevail that hinder this market, despite the creation of public policies such as PNAE and PAA. To test the hypothesis was necessary to answer the proposed specific objectives: the first is related to characterize the agroecological production in the municipality; the second to identify the "players", participants and involved in the process; and finally understand and compare the agroecological product markets. In order to achieve the aim of this qualitative study was originally drafted a theoretical review of the relevant issues to the subject, namely: family farming, agro-ecology, markets as social constructions and institutional theoretical approach of Douglass North. The sequence pointed to some historical features of the city studied in order to understand the local dynamics over time; then in the fourth chapter the basis of the theory studied, observation and using interviews with merchants, entities representing related organizations and others are listed particular aspects of each medium proposed marketing study and then trace similarities elements and differences between the three dynamics. It was found that informal institutions are prevalent in the marketplace and that public policies are driven by the formal rules that in many cases limit the operation of these programs such as found in Laranjeiras do Sul, whose products in the PNAE are delivered as conventional and PAA is not even being operated; and in supermarkets there is a mix of formal institutions as the legalization of products and retail standards and informal represented by the desires of consumers and managers on the demand and the change in the habits and customs

Submitted by José Roberto Rambo null (jr.rambo@unemat.br) on 2016-08-17T21:09:03Z No. of bitstreams: 1 José Roberto Rambo - Versão Final - Tese.pdf: 3221728 bytes, checksum: e35b7b4c143f661515efcda4d9386fc2 (MD5) / Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-08-19T18:32:00Z (GMT) No. of bitstreams: 1 rambo_jr_dr_ilha.pdf: 3221728 bytes, checksum: e35b7b4c143f661515efcda4d9386fc2 (MD5) / Made available in DSpace on 2016-08-19T18:32:00Z (GMT). No. of bitstreams: 1 rambo_jr_dr_ilha.pdf: 3221728 bytes, checksum: e35b7b4c143f661515efcda4d9386fc2 (MD5) Previous issue date: 2016-07-29 / Com a hipótese de que a aquisição de alimentos por meio da política pública do Programa de Aquisição de Alimentos (PAA) tem fortalecido o acesso aos mercados, a organização, a produção e a lucratividade dos agricultores familiares assentados da reforma agrária de Tangará da Serra-MT desenvolveu-se o presente estudo. Realizou-se a pesquisa de campo com a aplicação de formulário de perguntas a agricultores familiares assentados, feita em dois momentos e com objetivos distintos. O primeiro momento, entre junho e julho de 2015, com 14 agricultores familiares assentados, buscou retratar questões socioeconômicas, produtivas, de organização, participação e efeitos quali-quantitativos do PAA na vida e produção destes agricultores. No segundo momento, em novembro de 2015, com três agricultores familiares assentados, procurou-se estimar e analisar os custos de produção e a lucratividade das principais atividades comercializadas com o PAA pelos agricultores familiares assentados. Os resultados apontaram que o PAA promoveu comercialização de produtos agrícolas diversos, aumento da qualidade e quantidade de produtos, com destaque para a produção de banana, mandioca e abóbora, que na comercialização mostram resultados econômicos positivos tanto para o mercado tradicional quanto para o PAA, com desdobramentos positivos quanto à renda e às condições de vida das famílias. No entanto, observou-se que o associativismo tem por finalidade única a comercialização com o programa e que a falta de articulação entre as políticas públicas resulta em ausência de assistência técnica e extensão rural, além de se notarem preocupações quanto as interrupções de projetos do PAA. Ao final percebeu-se que os agricultores familiares assentados da reforma agrária de Tangará da Serra-MT conseguem produzir, tanto para atender à demanda da própria família quanto para comercialização, mas o vender desta produção ainda precisa de um suporte mais efetivo. Apesar de o PAA representar uma ferramenta importante no fortalecimento da agricultura familiar, ainda se mostra embrionário e incipiente na construção de acesso a novos mercados e na organização dos agricultores familiares assentados em Tangará da Serra-MT. / This research was conducted with the hypothesis that the acquisition of food through the public policy of the Food Purchase Programme (PAA) has strengthened access to markets, organization, production and profitability of settled family farmers in agricultural reform of municipality Tangará da Serra, Mato Grosso state, Brazil. The field research was performed based in application of forms, on two different occasions and objectives, to established family farmers. The first time, the form was carried out between June and July 2015 with 14 settled family farmers. It sought to expose socioeconomic, production and organization issues, as well participation and qualitative-quantitative effects of the PAA, in the production and life of these farmers. In the second phase, in November 2015, with three established farmers, the research aimed to estimate and analyze the costs and profitability of the main commercial activities under the PAA by settled established family farmers. The results showed that the PAA promoted the market diversity, and the increase the quality and quantity of products, especially in the production of bananas, cassava and pumpkin that show positive economic results in market, for both traditional market and the PAA, with positive developments related to income and living conditions of families. However, it is observed that the association has the sole purpose of commercializing with the program, and the lack of coordination between public policies results in absence of technical assistance and rural extension, in addition to concerns about interruptions of the PAA projects. At the end the study realized that family farmers settled in municipality Tangará da Serra can produce both to meet the family’s own demand, and to commercialize, but in order to sell this production, they still need a more effective support. Despite the PAA being an important tool in strengthening family farming, it is still emerging in constructing access to new markets and in the organization of family farmers settled in municipality Tangará da Serra.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-04T20:57:41Z No. of bitstreams: 1 LoreneKassiaBarbosaBrasil_DISSERT.pdf: 4922603 bytes, checksum: 43c43382b10ab495b58ab6e8131ebd77 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-07T16:51:00Z (GMT) No. of bitstreams: 1 LoreneKassiaBarbosaBrasil_DISSERT.pdf: 4922603 bytes, checksum: 43c43382b10ab495b58ab6e8131ebd77 (MD5) / Made available in DSpace on 2016-01-07T16:51:00Z (GMT). No. of bitstreams: 1 LoreneKassiaBarbosaBrasil_DISSERT.pdf: 4922603 bytes, checksum: 43c43382b10ab495b58ab6e8131ebd77 (MD5) Previous issue date: 2014-05-26 / O Programa de Aquisi??o de Alimentos (PAA) ? uma das pol?ticas propostas pelo governo, no ano de 2003, que tem como foco a agricultura familiar no Brasil. Esse programa tem como objetivo comercializar os produtos da agricultura familiar, atrav?s da compra institucional, incentivando a produ??o e promovendo a??es que possam melhorar a qualidade da alimenta??o de pessoas em situa??o de risco alimentar, e tem funcionado, em certa medida, como complemento ao Programa de Fortalecimento da Agricultura Familiar (PRONAF). O presente estudo tem como foco analisar as mudan?as socioterritoriais observadas no Rio Grande do Norte, em decorr?ncia da implanta??o do PAA. Para isso, realizou-se uma discuss?o sobre territ?rio e norma (considerando a pol?tica p?blica como tal), procedimento importante para se compreender como a norma influencia nas mudan?as territoriais, criando novas rela??es sociais e territoriais. Para o desenvolvimento da pesquisa, utilizaram-se textos cient?ficos e institucionais sobre o tema; realizou-se aplica??o de 97 question?rios com agricultores fornecedores do PAA e entrevistas com os gestores do programa em ?mbito federal (MDA), estadual (CONAB e EMATER) e municipal (EMATER local e Secretarias de Agricultura). Procedeu-se, ainda, a an?lise das pol?ticas p?blicas sociais, na busca de se entender o contexto em que o PAA se insere nas pol?ticas p?blicas direcionadas ? agricultura familiar, a partir de 1980, com a redemocratiza??o do Brasil. A partir das informa??es coletadas no trabalho de campo e dos dados secund?rios, foram elaborados os mapas, as tabelas, os gr?ficos e os cartogramas. Isso permitiu tra?ar o perfil socioecon?mico da agricultura familiar no Rio Grande do Norte, assim como dos inqueridos na pesquisa. Diante disso, constatou-se que o PAA de fato representa avan?os na pol?tica p?blica voltada para a agricultura familiar. No entanto, apesar de o programa ser essencial para a emancipa??o dos agricultores familiares, muito ainda deve ser feito para que a realidade do campo e da agricultura familiar no Rio Grande do Norte apresente mudan?as significativas. / The Acquisition Food Program (Programa de Aquisi??o de Alimentos ? PAA) is one of the governmental public politics proposed, in the year of 2003, that has the focus in the family-run farm in Brazil. This Program has as objectives: commercialize the familyrun farm products, bought by the government agencies; to encourage production, and promoting actions that improve quality food of people facing starving risk. This Program has been working, to some extent, as complement to the Program of family-run farm Enhancement (PRONAF). The present study has as its focus to analyse the social territorials changes observed in the state of Rio Grande do Norte, as a result of the PAA implementation. In this sense, it was promoted a discussion between territory and rules. I this work, public politics are understood as rules. This procedure was important in order to understand how the rules have influenced territorial changes, creating new social and territorial relations. In the research process was used scientific and institutional texts on the subject. It was applied a quiz with 97 PAA?s supplying farmers, and interviews were done with the Program managers in Federal (MDA), State (CONAB and EMATER) and municipal (local office of EMATER and Departments of Agriculture) levels. Social public politics were also analyzed with the aim of understand the context where PAA is situated in relation with the public politics directed to familyrun farm as a whole since 1980, within new Brazilian democratization process. With the information collected in the field, plus the secondary data, maps, charts, tables and cartograms were made. With all of this, a socio-economical profile of the family-run farm in the Rio Grande do Norte was traced, as well as the included in this research. Before this picture, we concluded that PAA indeed represents a forward in public politics directed to family-run farm. However, in spite of the importance of the Program for the family-run farmers to come of age, but in order to the rural and family-run farm reality in the Rio Grande do Norte come to present meaningful changes much still remain to be done.

No description available.