Argumentação em foco: a perspectiva de avaliação do ENEM

Nowadays ENEM is the main large-scale evaluation instrument of Brazilian education. Universities also often use it in order to select their candidates. Reading exam seeks to evaluate student’s capacity of producing argumentative and dissertation prose writing about a social, scientific, cultural or political theme. This paper is located in this context: we want to discuss the evaluation of ENEM’s Writing Exam argumentation. Our startpoint is presuppose that the capacity to develop a well-argued text evaluation goes through several specific skills, which cover different aspects of what is understood about argumentation process. Therefore, considering argumentation as an object of different theoretical approaches and covers different concepts, we intend to verify not only the approaches, but also subjacent concepts and how they were converted into skills and competences established on the ENEM Writing Exam’s matrix of correction. With regard to the nature, it is a theoretical paper, in other words, we intend to offer only a discussion about the theme, not necessarily offering a practical application. Concerning to the goals, it has an exploratory character as we intend to offer a problem treatment, in order to make it more explicit and them construct some hypotheses. In these terms, we surveyed some theoretical approaches about argumentation and presented three conceptions: rhetorical argumentation, textual argumentation and linguistics argumentation. At next, we analyzed the participant’s guide (ENEM’s 2013 Writing Exam ) and how each one of these conceptions are mobilized in the writing evaluation, beginning from how they are considered on the description of competences and skills up to used on correction. This analysis shows that is not assumed a very well established theoretical base, which can contribute to a certain fragility on the Writing Exam evaluation process.

Estudo de simulação de reservatórios para o desenvolvimento de um campo do nordeste brasileiro

In the last 16 years emerged in Brazil a segment of independent producers with focus on onshore basins and shallow waters. Among the challenges of these companies is the development of fields with projects with a low net present value (NPV). The objective of this work was to study the technical-economical best option to develop an oil field in the Brazilian Northeast using reservoir simulation. Real geology, reservoir and production data was used to build the geological and simulation model. Due to not having PVT analysis, distillation method test data known as the true boiling points (TBP) were used to create a fluids model generating the PVT data. After execution of the history match, four development scenarios were simulated: the extrapolation of production without new investments, the conversion of a producing well for immiscible gas injection, the drilling of a vertical well and the drilling of a horizontal well. As a result, from the financial point of view, the gas injection is the alternative with lower added value, but it may be viable if there are environmental or regulatory restrictions to flaring or venting the produced gas into the atmosphere from this field or neighboring accumulations. The recovery factor achieved with the drilling of vertical and horizontal wells is similar, but the horizontal well is a project of production acceleration; therefore, the present incremental cumulative production with a minimum rate of company's attractiveness is higher. Depending on the crude oil Brent price and the drilling cost, this option can be technically and financially viable.

Uma proposta de indicadores para o acompanhamento de alunos em projetos de desenvolvimento colaborativo de software com foco no desenvolvimento de habilidades transversais

Soft skills and teamwork practices were identi ed as the main de ciencies of recent graduates in computer courses. This issue led to a realization of a qualitative research aimed at investigating the challenges faced by professors of those courses in conducting, monitoring and assessing collaborative software development projects. Di erent challenges were reported by teachers, including di culties in the assessment of students both in the collective and individual levels. In this context, a quantitative research was conducted with the aim to map soft skill of students to a set of indicators that can be extracted from software repositories using data mining techniques. These indicators are aimed at measuring soft skills, such as teamwork, leadership, problem solving and the pace of communication. Then, a peer assessment approach was applied in a collaborative software development course of the software engineering major at the Federal University of Rio Grande do Norte (UFRN). This research presents a correlation study between the students' soft skills scores and indicators based on mining software repositories. This study contributes: (i) in the presentation of professors' perception of the di culties and opportunities for improving management and monitoring practices in collaborative software development projects; (ii) in investigating relationships between soft skills and activities performed by students using software repositories; (iii) in encouraging the development of soft skills and the use of software repositories among software engineering students; (iv) in contributing to the state of the art of three important areas of software engineering, namely software engineering education, educational data mining and human aspects of software engineering.

Uma proposta de indicadores para o acompanhamento de alunos em projetos de desenvolvimento colaborativo de software com foco no desenvolvimento de habilidades transversais

Soft skills and teamwork practices were identi ed as the main de ciencies of recent graduates in computer courses. This issue led to a realization of a qualitative research aimed at investigating the challenges faced by professors of those courses in conducting, monitoring and assessing collaborative software development projects. Di erent challenges were reported by teachers, including di culties in the assessment of students both in the collective and individual levels. In this context, a quantitative research was conducted with the aim to map soft skill of students to a set of indicators that can be extracted from software repositories using data mining techniques. These indicators are aimed at measuring soft skills, such as teamwork, leadership, problem solving and the pace of communication. Then, a peer assessment approach was applied in a collaborative software development course of the software engineering major at the Federal University of Rio Grande do Norte (UFRN). This research presents a correlation study between the students' soft skills scores and indicators based on mining software repositories. This study contributes: (i) in the presentation of professors' perception of the di culties and opportunities for improving management and monitoring practices in collaborative software development projects; (ii) in investigating relationships between soft skills and activities performed by students using software repositories; (iii) in encouraging the development of soft skills and the use of software repositories among software engineering students; (iv) in contributing to the state of the art of three important areas of software engineering, namely software engineering education, educational data mining and human aspects of software engineering.

Modelagem e análise dinâmica de um sistema de conversão de energia eólica dotado de gerador síncrono de imã permanente utilizando a plataforma ATP

Human development requires a broad balance between ecological, social and economic factors in order to ensure its own sustainability. In this sense, the search for new sources of energy generation, with low deployment and operation costs, which cause the least possible impact to the environment, has been the focus of attention of all society segments. To do so, the reduction in exploration of fossil fuels and the encouragement of using renewable energy resources for distributed generation have proved interesting alternatives to the expansion of the energy matrix of various countries in the world. In this sense, the wind energy has acquired an increasingly significant role, presenting increasing rates of power grid penetration and highlighting technological innovations such as the use of permanent magnet synchronous generators (PMSG). In Brazil, this fact has also been noted and, as a result, the impact of the inclusion of this source in the distribution and sub-transmission power grid has been a major concern of utilities and agents connected to Brazilian electrical sector. Thus, it is relevant the development of appropriate computational tools that allow detailed predictive studies about the dynamic behavior of wind farms, either operating with isolated load, either connected to the main grid, taking also into account the implementation of control strategies for active/reactive power generation and the keeping of adequate levels of voltage and frequency. This work fits in this context since it comprises mathematical and computational developments of a complete wind energy conversion system (WECS) endowed with PMSG using time domain techniques of Alternative Transients Program (ATP), which prides itself a recognized reputation by scientific and academic communities as well as by electricity professionals in Brazil and elsewhere. The modeling procedures performed allowed the elaboration of blocks representing each of the elements of a real WECS, comprising the primary source (the wind), the wind turbine, the PMSG, the frequency converter, the step up transformer, the load composition and the power grid equivalent. Special attention is also given to the implementation of wind turbine control techniques, mainly the pitch control responsible for keeping the generator under the maximum power operation point, and the vector theory that aims at adjusting the active/reactive power flow between the wind turbine and the power grid. Several simulations are performed to investigate the dynamic behavior of the wind farm when subjected to different operating conditions and/or on the occurrence of wind intensity variations. The results have shown the effectiveness of both mathematical and computational modeling developed for the wind turbine and the associated controls.

Ajustes de coeficientes integrantes de processos físicos e bioquímicos na autedepuração em curso de água de médio porte

The mathematical modeling in the simulation of self-purification capacity in lotic environment is an important tool in the planning and management of hydric resources in hydrographic basin scale. It satisfactorily deals with the self-purification process when the coefficients of physical and biochemical processes are calibrated from monitorated water quality data, which was the main focus of this study. The present study was conducted to simulate the behavior of the parameters OD, BOD5, total phosphorus, E. coli, ammonia, nitrite, nitrate and the total metals cadmium, chromium, copper, lead and zinc in the Uberabinha’s lower course (with an approximate annual growth flow between 4-35 m3/s), in a stretch of 19 km downstream of the treated effluent release by the WWTP of the city. The modelings, on the present study, show the importance of constant water quality parameters monitoration over the water course, based on the comparison of the simulations from calibrated coefficients and coefficients obtained in the literature for the period of June until November 2015. After coefficients calibration, there were good adjustments between simulated and measured data for the parameters OD, BOD, Ptotal, ammonia and nitrate and unsatisfactory adjust for the parameters nitrite and E. coli. About the total metals, the adjustments were not satisfactory on the reservoir’s vicinity of the Small Hydropower Plant Martins, due the considerable increase of the bottom sediment in lentic region. The greatest scientific contribution of this study was to calibrate the decay coefficient K and the quantification of the release by the fund S of total metals in watercourse midsize WWTP pollutant load receptor, justified by the lack of studies in the literature about the subject. For the metals cadmium, chromium, copper, lead and zinc, the borderline for K and S calibrated were: 0.0 to 13.0 day-1 and 0.0 to 1.7 g/m3.day; 0.0 to 0.9 day-1 and 0.0 to 7.3 g/m3.day; 0.0 to 25.0 day-1 and 0.0 to 1.8 g/m3.day; 0.0 to 7.0 day-1 and 0.0 to 40.3 g/m3.day; 0.0 to 30.0 day-1 and 0.0 to 70.1 g/m3.day.

Efeitos da internacionalização no desvio da estrutura de capital alvo e na velocidade de ajuste

This dissertation investigates the effects of internationalization in two gaps related to the capital structure that have not been discussed by the Brazilian literature yet. To this, were developed two independent sections. The first examined what the effects of internationalization on the deviation from the target capital structure. The second examined what the effects of internationalization on speed of adjustment (SOA) of the capital structure. It used data from Brazil, multinational and domestic companies, from 2006 to 2014. The results of the first analysis indicate that internationalization helps reduce the difference between the target and the current debt. That is, to the extent that the level of internationalization increases; whether only export or a combination of export, assets and employees abroad, the gap between the current structure and the target structure decreases. This reduction is given as a function of internationalization as a consequence of the upstream effect of the upstream-downstream hypothesis. Thus, as the Market Timing theory, it can be seen as an opportunity for adjustment of the capital structure, and with the reduction of deviation, there is also a reduction in the cost of capital of the firm. The result of the second analysis indicates that internationalization is able to significantly increase the speed adjustment, ensuring for the multinational a faster adjustment of its capital structure. Exports increase the SOA in 9 to 23%. And when also kept active assets and employees abroad the increase is 8 to 20%. In terms of time, while domestic company takes more than three years to reduce half of the deviation that has, while multinacional companies take on average one and a half year to reduce the same proportion of the deviation. The validity of the upstream-downstream hypothesis for the effect of internationalization in SOA was confirmed by comparing the results for US companies. Thus, the phenomenon of internationalization increases SOA when companies are from less stable markets, such as Brazil; and it has a less significcative effect when companies are derived from more stable markets, because they already have a high speed of adjustmennt. In addition, the adequacy analysis of the estimators also showed the model pooled OLS (Ordinary Least Squares) presents the highest quality in predicting the SOA than the system GMM (Generalized Method of Moments). For future studies it is suggested to analyze the effect of international event, by itself, and to validate the hypothesis using samples of different markets and the use of other estimators.

Democracia, deuda, ajuste y pobreza : El caso del Plan Austral

El presente trabajo se refiere a algunos de los efectos socioeconómicos de las presiones exteriores que condicionaron el retorno a la democracia, en Argentina, durante la década del 80, como consecuencia de la necesidad de renegociar los pagos de la deuda externa. En efecto, al asumir Alfonsín, los bancos acreedores se negaron a negociar si las autoridades nacionales, antes no aceptaban implementar una política de ajuste recomendada por el FMI. Este organismo multilateral reclamaba la reducción del déficit, la generación de un saldo favorable en la balanza comercial de US $ 3.500 millones y la transferencia al exterior del 6del PBI en concepto de intereses de la deuda. Por entonces, se pretendió disminuir eldéficit mediante la contracción de las inversiones públicas en un 21y el aumento de la recaudación en un 13,5. Al influir la mayor presión tributaria en la disminución del consumo, se procuró compensar el mismo con una política de promoción de exportaciones. La aplicación del plan de ajuste acordado con el FMI acentuó la recesión, debido al deprimido comportamiento de la demanda, provocando por la caída del salario real y la suba de las tasas de interés. . La ponencia circunscribe el planteo de problema a los años 1984 y 1985, procurando reseñar el tema en cuestión, sobre todo, durante el 85, con el propósito de lograr una mayor comprensión en cuanto a las circunstancias en las que se inició la implementación del Plan Austral: sus fuentes, expectativas y limitaciones. La dependencia con respecto a las decisiones del FMI y la posición de éste con respecto al Grupo de los 24. También la relación entre inversión social, recursos fiscales e inflación

Democracia, deuda, ajuste y pobreza : El caso del Plan Austral

El presente trabajo se refiere a algunos de los efectos socioeconómicos de las presiones exteriores que condicionaron el retorno a la democracia, en Argentina, durante la década del 80, como consecuencia de la necesidad de renegociar los pagos de la deuda externa. En efecto, al asumir Alfonsín, los bancos acreedores se negaron a negociar si las autoridades nacionales, antes no aceptaban implementar una política de ajuste recomendada por el FMI. Este organismo multilateral reclamaba la reducción del déficit, la generación de un saldo favorable en la balanza comercial de US $ 3.500 millones y la transferencia al exterior del 6del PBI en concepto de intereses de la deuda. Por entonces, se pretendió disminuir eldéficit mediante la contracción de las inversiones públicas en un 21y el aumento de la recaudación en un 13,5. Al influir la mayor presión tributaria en la disminución del consumo, se procuró compensar el mismo con una política de promoción de exportaciones. La aplicación del plan de ajuste acordado con el FMI acentuó la recesión, debido al deprimido comportamiento de la demanda, provocando por la caída del salario real y la suba de las tasas de interés. . La ponencia circunscribe el planteo de problema a los años 1984 y 1985, procurando reseñar el tema en cuestión, sobre todo, durante el 85, con el propósito de lograr una mayor comprensión en cuanto a las circunstancias en las que se inició la implementación del Plan Austral: sus fuentes, expectativas y limitaciones. La dependencia con respecto a las decisiones del FMI y la posición de éste con respecto al Grupo de los 24. También la relación entre inversión social, recursos fiscales e inflación

Democracia, deuda, ajuste y pobreza : El caso del Plan Austral

El presente trabajo se refiere a algunos de los efectos socioeconómicos de las presiones exteriores que condicionaron el retorno a la democracia, en Argentina, durante la década del 80, como consecuencia de la necesidad de renegociar los pagos de la deuda externa. En efecto, al asumir Alfonsín, los bancos acreedores se negaron a negociar si las autoridades nacionales, antes no aceptaban implementar una política de ajuste recomendada por el FMI. Este organismo multilateral reclamaba la reducción del déficit, la generación de un saldo favorable en la balanza comercial de US $ 3.500 millones y la transferencia al exterior del 6del PBI en concepto de intereses de la deuda. Por entonces, se pretendió disminuir eldéficit mediante la contracción de las inversiones públicas en un 21y el aumento de la recaudación en un 13,5. Al influir la mayor presión tributaria en la disminución del consumo, se procuró compensar el mismo con una política de promoción de exportaciones. La aplicación del plan de ajuste acordado con el FMI acentuó la recesión, debido al deprimido comportamiento de la demanda, provocando por la caída del salario real y la suba de las tasas de interés. . La ponencia circunscribe el planteo de problema a los años 1984 y 1985, procurando reseñar el tema en cuestión, sobre todo, durante el 85, con el propósito de lograr una mayor comprensión en cuanto a las circunstancias en las que se inició la implementación del Plan Austral: sus fuentes, expectativas y limitaciones. La dependencia con respecto a las decisiones del FMI y la posición de éste con respecto al Grupo de los 24. También la relación entre inversión social, recursos fiscales e inflación

O (des)ajuste entre a oferta e demanda de mão de obra qualificada na região do Grande ABC Paulista: subsídios para estratégias de desenvolvimento local

Dissertação apresentada ao Programa de Pós-Graduação em Administração - Mestrado da Universidade Municipal de São Caetano do Sul para a obtenção do título de Mestre em Administração.

Estudo de usuários em bibliotecas públicas e universitárias: em foco as dissertações defendidas no CMCI/UFPB

CARVALHO, Andréa Vasconcelos ; DINIZ, I. C. S. ; MEDEIROS, J. B. . Estudo de usuários em bibliotecas públicas e universitárias: em foco as dissertações defendidas no CMCI/UFPB. Informação & Sociedade. Estudos, João Pessoa, v. 12, n. 2, 2002