Influence of levels and forms of selenium associated with levels of vitamins C and E on the performance, yield and composition of tilapia fillet

Objetivou-se avaliar a influência da vitamina C (VC), vitamina E (VE) e de duas formas de selênio sobre o desempenho, rendimento e qualidade do filé de tilápia Nilótica. O experimento foi realizado num delineamento inteiramente casualizado composto por seis tratamentos, os quais foram constituídos pela adição de 100, 200 e 400 mg kg-1 das vitaminas C e E, associados com 0,1, 0,2 e 0,4 mg kg-1 de duas formas de selênio. Cada tratamento foi constituído por cinco repetições de 30 peixes cada. A dieta com 200 mg kg-1 de VC e VE + 0,2 mg kg-1 de selênio orgânico proporcionou ganho de peso, comprimento corporal e fator de conversão alimentar semelhantes aos tratamentos com 400 mg kg-1 de VC e VE + 0,4 mg kg-1 de selênio orgânico ou inorgânico. A adição de selênio orgânico à dieta melhorou o ganho de peso e o fator de conversão alimentar em comparação com o selênio inorgânico. A dieta com 0,2 mg kg-1 de selênio orgânico apresentou nível de glutationa peroxidase igual ao da dieta com 0,4 mg kg-1 de selênio inorgânico. Os rendimentos de carcaça e filé não foram influenciados pelos tratamentos, entretanto houve efeito dos tratamentos na composição química do filé.

Forms of the Postmodern Historical Novel : Christoph Ransmayr, Daniel Kehlmann, Wolfgang Hildesheimer

L’émergence du postmodernisme aux Etats-unis, mouvement esthétique rejetant les dogmes modernistes, date des années 1960. En s’imposant, durant les dernières décennies du 20ème siècle, comme le paradigme esthétique de l’architecture, des arts et de la littérature, le postmodernisme a également créé les conditions propres à une renaissance du roman historique. Cependant, la fiction historique postmoderne constitue maintenant une nouvelle forme du genre basée sur la parodie, l’ironie et le scepticisme envers les discours dominants. Cette nouvelle forme ne se limite plus à la présentation des récits dans un cadre historique réaliste. Elle remet plutôt en question la validité et par conséquent la nature même du discours historique, problématisant et mettant ainsi à l’avant le processus d’interprétation et de reconstruction du passé. Dans cette optique, la fiction historique contemporaine reflète les débats actuels sur les formes de l’historiographie, débats lancés par Hayden White. Dans les années 1980, la fiction historique a de nouveau fleuri dans l'espace culturel allemand tout comme ailleurs. Le présent mémoire analyse des formes postmodernes de la fiction historique en se basant sur trois romans historiques de langue allemande parus entre 1981 et 2005: Die Schrecken des Eises und der Finsternis de Christoph Ransmayr, Die Vermessung der Welt de Daniel Kehlmann et Marbot : Eine Biographie de Wolfgang Hildesheimer. L’analyse s'appuie sur divers modèles de la fiction postmoderne, en particulier sur le schéma de catégorisation du roman historique élaboré par Ansgar Nünning. Le mémoire montre dans quelle mesure ces romans appliquent des moyens stylistiques typiques pour le postmodernisme et portent un regard critique ou comique sur l’histoire et la culture allemande et autrichienne.

The responsiveness of government revenue to marginal tax rates

Ce document utilise des données fiscales et démographiques pour calculer les changements dans les recettes du gouvernement engendrés par les ajustements dans le taux marginal d'imposition, et cela en mettant l’accent sur la fourchette d'imposition la plus élevée. La portée de l’étude est une sélection de pays de l’O.C.D.E. Une analyse des changement de comportement des contribuables et des différentes alternatives dont le gouvernement dispose en termes de politique fiscale en suivaient. En fin, les possibles faiblesses dans des techniques de référence sont examinées en détail. 

Selection and Passage of County Land Preservation Voter Referendum: The Role of Government

County jurisdictions in America are increasingly exercising self-government in the provision of public community services through the context of second order federalism. In states exercising this form of contemporary governance, county governments with “reformed” policy-making structures and professional management practices, have begun to rival or surpass municipalities in the delivery of local services with regional implications such as environmental protection (Benton 2002, 2003; Marando and Reeves, 1993). The voter referendum, a form of direct democracy, is an important component of county land preservation and environmental protection governmental policies. The recent growth and success of land preservation voter referendums nationwide reflects an increase in citizen participation in government and their desire to protect vacant land and its natural environment from threats of over-development, urbanization and sprawl, loss of open space and farmland, deterioration of ecosystems, and inadequate park and recreational amenities. The study’s design employs a sequential, mixed method. First, a quantitative approach employs the Heckman two-step model. It is fitted with variables for the non-random sample of 227 voter referendum counties and all non-voter referendum counties in the U.S. from 1988 to 2009. Second, the qualitative data collected from the in-depth investigation of three South Florida county case studies with twelve public administrator interviews is transformed for integration with the quantitative findings. The purpose of the qualitative method is to complement, explain and enrich the statistical analysis of county demographic, socio-economic, terrain, regional, governance and government, political preference, environmentalism, and referendum-specific factors. The research finds that government factors are significant in terms of the success of land preservation voter referendums; more specifically, the presence of self-government authority (home rule charter), a reformed structure (county administrator/manager or elected executive), and environmental interest groups. In addition, this study concludes that successful counties are often located coastal, exhibit population and housing growth, and have older and more educated citizens who vote democratic in presidential elections. The analysis of case study documents and public administrator interviews finds that pragmatic considerations of timing, local politics and networking of regional stakeholders are also important features of success. Further research is suggested utilizing additional public participation, local government and public administration factors.

Corporate social responsibility reporting in the mining sector of Tanzania:(Lack of) government regulatory controls and NGO activism

Purpose – The purpose of this paper is to contribute to the ongoing debate on governance, accountability, transparency and corporate social responsibility (CSR) in the mining sector of a developing country context. It examines the reporting practices of the two largest transnational gold-mining companies in Tanzania in order to draw attention to the role played by local government regulations and advocacy and campaigning by nationally organised non-governmental organisations (NGOs) with respect to promoting corporate social reporting practices. Design/methodology/approach – The paper takes a political economy perspective to consider the serious implications of the neo-liberal ideologies of the global capitalist economy, as manifested in Tanzania’s regulatory framework and in NGO activism, for the corporate disclosure, accountability and responsibility of transnational companies (TNCs). A qualitative field case study methodology is adopted to locate the largely unfamiliar issues of CSR in the Tanzanian mining sector within a more familiar literature on social accounting. Data for the case study were obtained from interviews and from analysis of documents such as annual reports, social responsibility reports, newspapers, NGO reports and other publicly available documents. Findings – Analysis of interviews, press clips and NGO reports draws attention to social and environmental problems in the Tanzanian mining sector, which are arguably linked to the manifestation of the broader crisis of neo-liberal agendas. While these issues have serious impacts on local populations in the mining areas, they often remain invisible in mining companies’ social disclosures. Increasing evidence of social and environmental ills raises serious questions about the effectiveness of the regulatory frameworks, as well as the roles played by NGOs and other pressure groups in Tanzania. Practical implications – By empowering local NGOs through educational, capacity building, technological and other support, NGOs’ advocacy, campaigning and networking with other civil society groups can play a pivotal role in encouraging corporations, especially TNCs, to adopt more socially and environmentally responsible business practices and to adhere to international and local standards, which in turn may help to improve the lives of many poor people living in developing countries in general, and Tanzania in particular. Originality/value – This paper contributes insights from gold-mining activities in Tanzania to the existing literature on CSR in the mining sector. It also contributes to political economy theory by locating CSR reporting within the socio-political and regulatory context in which mining operations take place in Tanzania. It is argued that, for CSR reporting to be effective, robust regulations and enforcement and stronger political pressure must be put in place.

Contrast and lustre:a model that accounts for eleven different forms of contrast discrimination in binocular vision

Our goal here is a more complete understanding of how information about luminance contrast is encoded and used by the binocular visual system. In two-interval forced-choice experiments we assessed observers' ability to discriminate changes in contrast that could be an increase or decrease of contrast in one or both eyes, or an increase in one eye coupled with a decrease in the other (termed IncDec). The base or pedestal contrasts were either in-phase or out-of-phase in the two eyes. The opposed changes in the IncDec condition did not cancel each other out, implying that along with binocular summation, information is also available from mechanisms that do not sum the two eyes' inputs. These might be monocular mechanisms. With a binocular pedestal, monocular increments of contrast were much easier to see than monocular decrements. These findings suggest that there are separate binocular (B) and monocular (L,R) channels, but only the largest of the three responses, max(L,B,R), is available to perception and decision. Results from contrast discrimination and contrast matching tasks were described very accurately by this model. Stimuli, data, and model responses can all be visualized in a common binocular contrast space, allowing a more direct comparison between models and data. Some results with out-of-phase pedestals were not accounted for by the max model of contrast coding, but were well explained by an extended model in which gratings of opposite polarity create the sensation of lustre. Observers can discriminate changes in lustre alongside changes in contrast.

Forms of the Postmodern Historical Novel : Christoph Ransmayr, Daniel Kehlmann, Wolfgang Hildesheimer

L’émergence du postmodernisme aux Etats-unis, mouvement esthétique rejetant les dogmes modernistes, date des années 1960. En s’imposant, durant les dernières décennies du 20ème siècle, comme le paradigme esthétique de l’architecture, des arts et de la littérature, le postmodernisme a également créé les conditions propres à une renaissance du roman historique. Cependant, la fiction historique postmoderne constitue maintenant une nouvelle forme du genre basée sur la parodie, l’ironie et le scepticisme envers les discours dominants. Cette nouvelle forme ne se limite plus à la présentation des récits dans un cadre historique réaliste. Elle remet plutôt en question la validité et par conséquent la nature même du discours historique, problématisant et mettant ainsi à l’avant le processus d’interprétation et de reconstruction du passé. Dans cette optique, la fiction historique contemporaine reflète les débats actuels sur les formes de l’historiographie, débats lancés par Hayden White. Dans les années 1980, la fiction historique a de nouveau fleuri dans l'espace culturel allemand tout comme ailleurs. Le présent mémoire analyse des formes postmodernes de la fiction historique en se basant sur trois romans historiques de langue allemande parus entre 1981 et 2005: Die Schrecken des Eises und der Finsternis de Christoph Ransmayr, Die Vermessung der Welt de Daniel Kehlmann et Marbot : Eine Biographie de Wolfgang Hildesheimer. L’analyse s'appuie sur divers modèles de la fiction postmoderne, en particulier sur le schéma de catégorisation du roman historique élaboré par Ansgar Nünning. Le mémoire montre dans quelle mesure ces romans appliquent des moyens stylistiques typiques pour le postmodernisme et portent un regard critique ou comique sur l’histoire et la culture allemande et autrichienne.

The responsiveness of government revenue to marginal tax rates

Ce document utilise des données fiscales et démographiques pour calculer les changements dans les recettes du gouvernement engendrés par les ajustements dans le taux marginal d'imposition, et cela en mettant l’accent sur la fourchette d'imposition la plus élevée. La portée de l’étude est une sélection de pays de l’O.C.D.E. Une analyse des changement de comportement des contribuables et des différentes alternatives dont le gouvernement dispose en termes de politique fiscale en suivaient. En fin, les possibles faiblesses dans des techniques de référence sont examinées en détail. 

Different forms of life satisfaction and their relation to affectivity

Aims: The present study is aimed at studying the research question whether high satisfaction levels achieved through either (1) the fact that one's quality of life is truly satisfactory (i.e., stabilized life satisfaction) or through (2) adapting a more favorable perception of one's quality of life by lowering standards (i.e., resigned life satisfaction) are associated with different levels of positive affect (PA) and negative affect (NA) when compared to each other but also when compared to dissatisfied individuals. Case Report: A sample of 104 adults completed measures assessing stabilized and resigned life satisfaction, PA and NA, and global life satisfaction (i.e., no explicit consideration of differences in standards) in an online survey. Participants were not paid for participation but received feedback on results of the study if interest was expressed. Results: Stabilized life satisfaction and global life satisfaction showed highly similar correlation pattern with PA and NA. Resigned satisfaction was negatively associated with PA and positively correlated with NA. Stabilized and resigned satisfied individuals showed more favorable levels of PA and NA compared with dissatisfied individuals, but did not differ from each other with regard to their levels of PA and NA. Conclusion: Although showing a less favorable correlation pattern with PA and NA, adopting a resigned form of satisfaction (i.e., taking a more favorable view of one's quality of life by lowering individual standards) seemed to prevent individuals from experiencing the same high levels of NA like dissatisfied ones. This has not been studied in detail so far, and therefore, the present paper opens a further area of research within the context of life satisfaction.

Los efectos sobre el medio ambiente en las nuevas democracias, las dictaduras y las democracias tradicionales

El principal objeto de esta investigación es determinar y evaluar si la evolución o transición hacia formas cerradas o abiertas de gobernar -autocracias y democracias- ha llevado aparejada una menor o mayor contribución a la calidad del medio ambiente. La conclusión es clara, los nuevos gobiernos democráticos tienen más probabilidades de responder a los intereses medioambientales y, por lo tanto, son más propensos a respaldar las convenciones internacionales que las autocracias.

Efectividad en redes Inter-Organizacionales : una aproximación al concepto y su medición

El concepto de efectividad en Redes Inter-organizacionales se ha investigado poco a pesar de la gran importancia en el desarrollo y sostenibilidad de la red. Es muy importante entender este concepto ya que cuando hablamos de Red, nos referimos a un grupo de más de tres organizaciones que trabajan juntas para alcanzar un objetivo colectivo que beneficia a cada miembro de la red. Esto nos demuestra la importancia de evaluar y analizar este fenómeno “Red Inter-organizacional” de forma más detallada para poder analizar que estructura, formas de gobierno, relaciones entre los miembros y entre otros factores, influyen en la efectividad y perdurabilidad de la Red Inter-organizacional. Esta investigación se desarrolla con el fin de plantear una aproximación al concepto de medición de la efectividad en Redes Inter-organizacionales. El trabajo se centrara en la recopilación de información y en la investigación documental, la cual se realizará por fases para brindarle al lector una mayor claridad y entendimiento sobre qué es Red, Red Inter-Organizacional, Efectividad. Y para finalizar se estudiara Efectividad en una Red Inter-organizacional.

Financiamento público à indústria de exibição cinematográfica: um estudo de caso no Brasil

O objetivo deste trabalho é avaliar o impacto da criação de linhas de financiamento ao parque exibidor cinematográfico brasileiro, uma das formas existentes de incentivo governamental ao setor. Os desembolsos avaliados, realizados pelo BNDES com recursos do Procult e do FSA de 2007 a 2012, consistem em crédito de longo prazo para a criação de salas de cinema, com juros abaixo do mercado e estrutura de garantias flexível. A metodologia econométrica utilizada é o controle sintético, tal como formalizada por Abadie et al. (2010). Sob esse método, não foi possível identificar contribuição positiva da política de crédito quando se confronta o desempenho individual dos exibidores beneficiados versus seus respectivos controles sintéticos, medido pela evolução das variáveis número de salas e público. Ademais, testou-se um possível efeito agregado, considerando a evolução do número de ingressos per capita no Brasil, também não sendo possível identificar contribuição positiva da política sobre tal indicador.

O Psicólogo no campo do Bem-Estar: cartografias de práticas na saúde e assistência social

The study focuses on the psychology and Social Well-being Policy encounters. The objective is to understand how the psychologists in the health services of Natal, RN, specifically in the Basic Health Units and social assistance, experience their daily practices. The methodology included observation and interviews of 13 psychologists regarding their daily activities and forms of practice in these services. We utilized an interview protocol directed at the affective memory and the professional life history of these technicians. Field notes were used to produce a cartography of the encounter intensities experienced by the researcher in the investigated context. The data analysis enabled the construction of the following analytic axes: 1) Work processes and proximity/ distancing points between these fields; 2) Forms of government and life management in the well-being context; 3) Experiments of self in the daily services. The first axis showed the precariousness of working conditions (remuneration issues, lack of structure, of training and autonomy for the activities). In the second axis the identified care forms produced in these fields indicated an adherence to the production of ideal subjects characterized as autonomous, productive, healthy and aware of own rights . These were considered normative insofar as they express attempts to break with the established patterns. In the third axis, many technicians experienced constraint with the daily activities because they found themselves in contexts that were adverse to the habitual forms of action. This situation provoked two distinct forms of positioning: a) action expressed by compassion, pity and resentment; b) investment in the practices themselves, so as to overcome its limits and to respond innovatively to the difficulties and/or challenges that these contexts provoke

Em busca da caixa mágica: o Estado Novo e a televisão

A análise histórica sobre a Exposição de Televisão (Rio de Janeiro, 1939), evento promovido pelo Estado Novo em parceria com o Terceiro Reich alemão, permite trazer, além de dados sobre a história da TV no Brasil, elementos de compreensão sobre as primeiras relações entre poder político e esse meio de comunicação no país. Pois, a demonstração pública da TV aos brasileiros foi utilizada como peça de propaganda do Estado Novo, servindo-lhe para reforçar a sua propalada superioridade sobre outras formas de governo, legitimar o regime entre os vários segmentos sociais e compor o rol de argumentações favoráveis ao alinhamento Brasil-Alemanha. Ademais, o artigo pretende jogar novas luzes sobre as pretensões da ditadura varguista com relação à propaganda política e sobre a ação da imprensa frente ao controle estadonovista no período anterior ao funcionamento do DIP.

Contextos laborales, subjetividad y formas de gobierno : El caso del Ministerio Público en la ciudad de Corrientes

En este escrito se presenta una caracterización de las formas de regulación de las actividades y las conductas en un contexto laboral público. Interesan las modalidades de gobierno, es decir, de conducción de conductas, por las vías que fueran, desde psicológicas hasta físicas, por medio de las cuales se canaliza una determinada organización y forma de participación en el trabajo. Se analizan también las formas en que los trabajadores, en sus distintos rangos, entienden y reflexionan sobre ello, adecuando parte de su experiencia vital -su vida como trabajadores- a las formas de participación y organización existentes