93 resultados para Pursuit
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Pós-graduação em Design - FAAC
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The relentless pursuit for materials containing rare earth ions with photoluminescent properties has led to several studies with applications in the development of new technologies. The main focus of this work is the preparation of Er3+-doped polycrystalline Y2O3 with photoluminescent properties using PEG as an organic precursor and heat-treated at different temperatures. The methodology used in this synthesis is highly attractive due to its high feasibility for improved technology and low cost for preparing materials. The behavior of the viscous resin has been evaluated and the final compounds exhibited the formation of a cubic polycrystalline phase, which is able to support variations in Er3+ doping concentrations up to 10 mol%, without significant changes in the polycrystalline parameters. The values of the nanocrystallite size calculated by Scherrer's equation showed direct dependence on the heat-treatment temperature as well as the Er3+ concentration. Intense emission in the visible region under excitation at 980 nm was attributed to an upconversion phenomenon assigned to the intraconfigurational f-f transitions of Er3+ ions. The upconversion mechanism was investigated and it was demonstrated that the higher intense emission in the red region in comparison to the emission in the green region is related to the crystallite size. The studies about the intensity showed the dependence of upconversion emission of power source, indicating that two-photon are responsible for the green and red photoluminescence. These polycrystalline materials exhibit properties that make them promising for use in solar energy systems, C-telecom band or solid-state laser devices. (C) 2014 Elsevier B.V. All rights reserved.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Thinking about research with children, giving time and voice to them is a discussion that is still fresh. Thus, in order to establish some reflections on the theoretical and methodological issues in research with children, we hope with this article to give visibility to the theoretical assumptions of authors who are concerned to place the child and childhood in the center of the research process. Thus, contributing to this discussion, this text is divided into three stages: initially bring some contributions of sociology of childhood and the various fields of knowledge to think about research with children. Secondly, we propose to discuss some methods and procedures that may favor the development of research with children. When we trace the historical development related to research with children and recover the concept of childhood and child while being active and producer of culture, we headed for the third time this work presents some results and conclusions, which can direct our gaze on pursuit of research instruments that capture what children think, feel and build in the world that they live and live together.
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Pós-graduação em Microbiologia Agropecuária - FCAV
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The increasing concerns about the health and safety is significantly changing the costeffective management of labor, also becoming an important tool in the pursuit of quality. In this context the present work makes a studyin a steel mill, to determine an action plan with the goal of reducing the risk of injury during handling and setting up bearings in a workshop of rolling mill rolls. The study is structured through the Method of Analysis and Troubleshooting, and quality tools. The definition of the action plan has brought lowcost measures that seek to solve the problem, eliminating the possibility of fatality or inability to employees
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This paper concentrates on the analysis of how the typical voices of History are manifested, which is achieved by the aesthetics of the contemporary Portuguese narrative, as it aims at the same time the reflexion and the reformulation of the Lusitanian cultural imaginary in the course of O retorno, a novel by Dulce Maria Cardoso. The hypothesis that arises is that the trajectory of Rui’s individual experience, as wells as the other’s characters “retornados” looking for identity, is parallel to the proposed revision of the Portuguese nation collective cultural imaginary in the decolonization context, after the 25th April Revolution. It is its objective to investigate how the historical processes concerned to the concepts of exile and uprooting, displacement and belonging (BAUMAN, 2005) are fictionalized in the novel, seen as motes for Rui’s pursuit for identity and for the revision of the Portuguese Destiny theme
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This study presents the results from a qualitative resource, based on research-action methodology, which examined the innovate teaching practices implementations in the Calculus I during 2011 year. The analysis of collected data from three used sources – an initial questionnaire, an exploratory-investigative classroom, and an interview with some students at the end of the second semester – reveals that the students had appropriated of the technological recourses, using it as a tool to look for the knowledge. The investigative activities with the use of information technologies made the use of multiple representations in solving mathematical tasks, making the transition of numerical, algebraic and geometrical results possible for the students when they have looking for validation of their hypotheses and conjectures during mathematical problems solving. This works helped in the insertion of new practices in the discipline, and their results validate the proposal presented by the teacher, which is the discipline of Calculus use, whose character is strongly linked to the training content of the student, as a discipline whose can contributed to the pedagogical formation of the graduation student, leading him to know the Mathematical Education possibilities, specially the Mathematical Investigation - Solving Problems, in the outlook of dialogued classes where the teacher assumes the facilitator role and where the students become actives in their pursuit of knowledge
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In the current historical period marked by globalization and neoliberal policies have seen the pursuit of expanded reproduction of capital by corporations, which make from the deepening territorial division of labor, ie, the increasing presence of its circuit productive space within steps towards the relations between capital and labor. This capital increase is made possible mainly by exploiting precarious forms of labor. In Brazil today, much of the population enjoys the possibilities of consumption, due mainly to the policy measures implemented in the last decade, this situation favors further expansion of large companies in our territory, thus the circuit analysis of spatial production of cosmetics contributes to a political debate about the uses of the national territory. Given that companies are organizations whose actions occur inseparably technical systems that make up the territory, this course conclusion work seeks to understand the circuit of production space and cooperation circles cosmetics company Natura Cosmetics S/A
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The work presents a literature review on the topic of internal communication as an innovation factor in Micro and Small Business. The objective is to discuss how internal communication can be an essential factor in the pursuit of innovation and the consequent competitive advantage in the Micro and Small Enterprises scenario. We present the concepts of integrated communication, organizational communication, internal communication, whether crafted by a philosophy of Public Relations, can lead these companies to gain competitive advantage and overcome the limitations and challenges imposed on them
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Naturally characterizes the human being the interference in the environment to ensure their survival and also convenience. After numerous environmental accidents caused by unbridled pursuit of this goal, the concern about providing for current needs without compromising the ability of the future generations to supply their own, gained space. In order to contribute to sustainable development the Life Cycle Assessment (LCA) was implemented. This tool is based on the concept that if the environmental impacts of a product or service are known, it is possible to take better decisions concerning its environmental aspects. The purpose of this research is to conduct the LCA of polyvinyl chloride (PVC), the world’s second most consumed thermoplastic. The methodology described in NBR ISO 14040 and NBR ISO 14044 was followed. As a result, the LCA of polyvinyl chloride produced in Brazil was obtained, and, therefore, the inventory of the product in question adapted to Brazilian reality. The research can be applied to various studies considering that actions were taken to ensure that it represents the Brazilian reality. Moreover, the procedures were described to guarantee the greatest transparency possible
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The purpose of this research project is to analyze the Convergence Culture, a term coined by Henry Jenkins, to refer to the cultural transformation we are experiencing - people want to produce their own content, share their stories, expand their experiences and make connections to different platforms media. That is, individuals have changed their position once considered passive and accommodating to sustain an environment of intense involvement, construction and collective pursuit of new experiences. So that we could reach that culture converged, there was a paradigm shift from an asymmetric communication for communication increasingly bilateral. In this new scenario, communication to different audiences is based on a participatory and collaborative model in which organizations do not have absolute control over the media message. Therefore, this study tried to demonstrate what steps to be followed by public relations in convergence culture
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This research has the purpose of highlighting one of the acting areas of the public relations' professional, ensuring that he has enough competence to develop his work within an organization, implementing actions and programs in pursuit of a sustainable growth. The study starts with an analysis of the organizations and their communication process to further expand the understanding of the concept of sustainable development and finally addressing the role of public relations and the scenario organizational that it is envolved. In the globalized world we live in, our relationships are mediated by the capitalism: economic system that is concerned with the higher production seeking only profits. Thus, some organizations - acting in accordance with this model, end up don't caring about the environment around them, using it only like an instrument for achieving their goals. However, because this type of action, the contemporary society is facing serious environmental problems, fact that arouses the attention of civil society members and international organs, concerned to combine progress with sustainable development. The public relations' professional, concerned about the concretization of a concept and favorable institutional identities, besides the obvious envolvement with environment, can act in defense of this, implementing policies and campaigns ecologically correct for sustainability