Optimization and software-numerical implementation of miller's algorithm on a four-frequency model of solid vibration movement

On the basis of a programmed-numerical approach, new values of the coefficients in the Miller orientation algorithm are obtained. For this, an analytical reference model of the angular motion of a rigid body was applied in the form of a four-frequency representation of the orientation quaternion.The numerical implementation of the reference model for a given set of frequencies is presented in the form of constructed trajectories in the configuration space of orientation parameters. A software-numerical implementation of Miller's algorithm is carried out for different values of the coefficients and the values of the coefficients are obtained, which optimize the error of the accumulated drift. It is shown that for the presented reference model of angular motion, Miller's algorithm with a new set of coefficients provides a lower computational drift error compared to with the classic Miller algorithm and the Ignagni modification, which are optimized for conical motion.

Color ruler to confirm spectrophotometer results for nitro compound content in acidic wastewater from TNT processes

This study aimed to find an additional analytical reference procedure to verify the accuracy of single beam Spectrophotometer results that used to determine the concentration of nitro compound pollutants such as TNT, DNT, and MNT (Tri Nitro Toluene, Di Nitro toluene, and Mono Nitro Toluene respectively) in treated acidic wastewater generated from TNT manufacturing. This procedure was tested and confirmed to be a reference for a single-beam spectrophotometer. In this study 10 samples with known concentrations were taken and prepared for colorimetric analysis, the concentrations gradient from 10mg/L up to 60mg/L to make a ruler with gradient color, this ruler was suitable for high concentration samples but to specify the low concentration samples the procedure depended on adding a known concentration to the unknown concentration sample then this added concentration transferred the samples from unspecified color to specified color on the ruler consisted by known concentration mentioned above, the concentration of unknown concentration samples were specified by taking the concentration corresponding to the ruler color a subtracting the value of added concentration and the value of the remains was sample concentration. This study proved the reliability of this procedure to confirm single-beam spectrophotometer results, determining low concentration value of unknown concentration sample of TNT acidic wastewater, and then it can be used as a substituent of spectrophotometer in the event of malfunctions.

“In the First Place, We Don’t Like to Be Called ‘Refugees’”: Dilemmas of Representation and Transversal Politics in the Participatory Art Project 100% FOREIGN?

100% FOREIGN? (100% FREMMED?) is an art project consisting of 250 life stories of individuals who were granted asylum in Denmark between 1956 and 2019. Thus, it can be said to form a collective portrait that inserts citizens of refugee backgrounds into the narrative of the nation, thereby expanding the idea of national identity and culture. 100% FOREIGN? allows us to think of participatory art as a privileged site for the exploration of intersubjective relations and the question of how to “represent” citizens with refugee experience as well as the history and practice of asylum. The conflicting aims and perceptions involved in such representations are many, as suggested by the opening sentence of Hannah Arendt’s 1943 essay “We, Refugees”: “In the first place, we don’t like to be called ‘refugees’”. Using 100% FOREIGN? as an analytical reference point, this article discusses some of the ethical and political implications of representing former refugees. It briefly considers recent Danish immigration and asylum policies to situate the project in its regional European context and argues that, similarly to its neighbouring countries, Denmark can be described as a “postmigrant society” (Foroutan). To frame 100% FOREIGN? theoretically, this article draws on Arendt’s essay, Trinh T. Minh-ha’s concept of speaking nearby, as well as the feminist concept of transversal politics (Meskimmon, Yuval-Davis). It is hoped that this approach will lead to a deeper understanding of what participatory art can bring to the ethical politics of representing refugee experience.

Práticas de leitura em uma penitenciária masculina: Acesso, cerceamentos e sentidos

This article has as a matter of concern the defense of the right to education to the people in situation of imprisonment, and it proposes to discuss practices of reading of men, students of the Education of Young and Adult People, in a masculine penitentiary. As a theoretical and analytical reference, studies of the field of literacy and authors focusing on territory are mobilized. The research field is a state school that functions in the penitentiary, and the data were collected through observation of classes and interviews with 12 subjects. Different literacy events have been identified in which men participate, but there is a tension between increasing access to reading and the limitations of the prison. These events constitute literacy practices in which multiple meanings appear, in addition to the possibility of remission of the sentence through reading, and the school is configured in prison as an important literacy agency, increasing the access to reading of these subjects and other men arrested and who do not attend classes. The results point to the need to strengthen the right to education in prisons, effectively guaranteeing access to school and to reading for people deprived of their liberty.

POLÍTICAS PÚBLICAS, EXPANSÃO DO ENSINO SUPERIOR PRIVADO LUCRATIVO E FINANCEIRIZAÇÃO DO CAPITAL NO BRASIL: o caso da Kroton Educacional S.A.

Este texto tem como objetivo central expor o estudo desenvolvido sobre a Kroton Educacional S.A., de 2007 a 2012, tendo em conta a notável expansão do ensino superior no setor privado com finalidades lucrativas, nas quase duas últimas décadas, imersa num processo mais amplo de financeirização do capital, que encontrou maiores incentivos a partir do final dos anos de 1960, em especial, nos países centrais. A escolha do referencial de análise se deu pela abordagem qualitativa, por meio do estudo da legislação pertinente ao assunto, da bibliografia associada ao tema, além dos exercícios sociais da companhia, no período delimitado. Observou-se como as novas estratégias de gestão corporativa da empresa, bem como certos incentivos governamentais permitiram seu importante crescimento. Com as metas da Kroton Educacional S.A. para sua valorização em curto prazo, sobretudo no mercado acionário, estreitaram-se os laços entre educação e mercadoria.Palavras-chave: Financeirização do capital. Kroton Educacional S.A. Ensino Superior Privado. Mercadoria. Lucro.PUBLIC POLICIES, EXPANSION OF PRIVATE HIGHER EDUCATION AND FINANCING OF CAPITAL IN BRAZIL: the case of Kroton Educacional S.A.AbstractThe main objective of this text is to outline the study carried out on Kroton Educacional S.A. from 2007 to 2012, taking into account the remarkable expansion of higher education in the private sector for profit in the last two decades, immersed in a broader process of financialization of capital, which found greater incentives from the late 1960s, especially in the central countries. The choice of analytical reference was based on the qualitative approach, through the study of relevant legislation, the bibliography associated with the topic, and the company's fiscal years, within the defined period. It was observed how the company's new corporate management strategies as well as certain government incentives allowed its important growth. With the goals of Kroton Educacional S.A. for its short-term appreciation, especially in the stock market, the ties between education and merchandise were tightened.Keywords: financialization of capital. Kroton Educacional S.A. Private Higher Education. Merchandise. Profit.POLÍTICAS PÚBLICAS, EXPANSIÓN DE LA ENSEÑANZA SUPERIOR PRIVADA LUCRATIVA Y FINANCIERIZACIÓN DEL CAPITAL EN BRASIL: el caso de Kroton Educacional S.A.ResumenEste texto tiene como objetivo central exponer el estudio desarrollado sobre Kroton Educacional S.A., de 2007 a 2012, teniendo en cuenta la notable expansión de la enseñanza superior en el sector privado con fines lucrativos, en las casi dos últimas décadas, inmersa en un proceso más amplio de financierización del capital, que encontró mayores incentivos a finales de los años 1960, especialmente en los países centrales. La elección del referencial de análisis se dio por el abordaje cualitativo, por medio del estudio de la legislación pertinente al asunto, de la bibliografía asociada al tema, además de los ejercicios sociales de la compañía, en el período delimitado. Se observó cómo las nuevas estrategias de gestión corporativa de la empresa, así como ciertos incentivos gubernamentales, permitieron su importante crecimiento. Con las metas de Kroton Educacional S.A. para su valorización a corto plazo, sobre todo en el mercado accionario, se estrecharon los lazos entre educación y mercancía.Palabras clave: Financierización del capital. Kroton Educacional S.A.. Enseñanza Superior Privada. Mercancía. Ganancia.

Entre la descentralización y la desconcentración de la gestión ambiental: alcances y límites en la actuación de consejos municipales de medio ambiente en el Semiárido Nordestino

The Brazilian Federal Constitution of 1988 had an important role in the induction of political-administrative decentralization as in the elevation of municipalities as a federated entity. In environmental policy, these results have been expressed through the dissemination of municipal environmental councils. In the Northeast of Brazil, a region that has the fewest municipalities with established environmental councils and researches focused on their dynamics, new collegiate instances have been created, without a critical evaluation, among other factors, of the institutional capacity of small municipalities. In this sense, this article discusses the reaches and the limits identificated in the perfomance of municipal councils of environment in the Northeastern Semiarid, taking as an analytical reference the logics of the decentralization and the desconcentration. Through a bibliographical survey and a case study carried out in the semi-arid municipalities of Pernambuco, it is possible to identify reaches but, above all, limits that hinder the deliberative autonomy of the councils, even in large and economically dynamic municipalities. New studies are suggested, considering the pioneering and new environmental councils, especially in the northeastern states that exhibit the lowest levels of environmental management instruments implemented.

The Childhood of the Gender: the Visibility of Children in Prehistory of Northern Minas Gerais

Based on the idea that the construction of gender happens over time, it is essential to regard childhood as a structuring category in this process. Such as gender, childhood is a social construction, besides being dynamic and contextual, it is also historical, because it is strongly linked to the different stages of life. Our study intends to demonstrate the relationship between gender, age, and socialization through material culture, emphasizing how gender construction starts during the childhood. For this our analytical reference materials came from funerary contexts of children of the Gentio Cave, in Minas Gerais. In addition, we have not solely focused on mortuary remains, but also in outstanding items that were put together in these contexts. Our theoretical approach based on postprocessualism, archaeology of gender, of identity, and of childhood through dialectical and interdisciplinary perspectives. A Infância do Gênero: a Visibilidade das Crianças na Pré-história do Norte de Minas Gerais Partindo da ideia de que a construção de gênero se dá ao longo do tempo, consideramos fundamental inserirmos a infância como elemento estruturante nesse processo. Como gênero, a infância também é uma construção social, que além de dinâmica e contextual, é também histórica, uma vez que está fortemente vinculada aos diferentes estágios da vida. Nosso estudo busca demonstrar a relação entre gênero, idade e socialização, e como sua construção se dá a partir da infância, tendo como referência analítica os contextos funerários de crianças da Gruta do Gentio II, em Minas Gerais. Não tivemos como foco um estudo meramente bioarqueológico, mas de modo especial os itens diagnósticos dos contextos funerários, com base os pressupostos teóricos da arqueologia contextual, de gênero, identidade e da infância, numa perspectiva dialética e transdisciplinar com a antropologia e a história.

Law, Marxism and Method

Law is crucial to the maintenance and reproduction of capitalism. While Marx never produced a comprehensive theory of law, state and rights, there is much in his work, and in the broader Marxist tradition, that can help us understand the nature and role of law in contemporary capitalism. This paper sketches out some of the key resources from within the Marxist tradition that can assist us in developing Marxist understandings of law, state and rights today. Specifically, the focus is on the question of method, drawing out three key strands from Marx's own work: (i) the importance of dialectical materialist analysis; (ii) the historically specific and transitory nature of capitalism and (iii) the centrality of class antagonism and class struggle. The argument advanced here, in sum, is that Marxist explanations of law, state and rights should foreground these analytical reference points, in order to make the role of law intelligible, and to begin to sketch how movements for fundamental social change might understand and engage with the law.