824 resultados para Avaliação da Formação
Resumo:
The present work analyzed the tribological behavior of coatings/surface modifications traditionally used in cold rolling mill rolls and new coatings/surface modificationswith potential to replace the carcinogenic hard chrome. The study started with identification of wear mechanisms occurring in real coldrollingmill rolls. Due the high cost and dimensions of the rolls, thereplication technique was used. Replicas were obtained from 4 different rolling millBrazilian companies before and after a normal rolling campaign. Initial sliding tests were conducted using spherical and cylindrical counter bodies in order to verifywhichtribological conditions allowed to reproduce the wear mechanisms found in the replicas. These tests indicated the use of reciprocating sliding tests with cylindrical counter bodies (line contact), normal load of 100 N, and test times of and 1 h and 5 h. Different surface modifications were carried out on samples produced from a fragment of a rolling mill roll. The specimens were heat treated and ground on both sides. After, some specimens were surface textured by electrical discharge texturing (EDT). For both groups (ground and EDT), subsequent treatments of chromium plating, electroless NiP coating and plasma nitriding were carried out. The results of the reciprocating tests showed that specimens with electroless NiP coating presented the lowest friction coefficients, while plasma nitrided specimens showed the highest. In general, previous surface texturing before the coating/surface modification increased the wear of the counter bodies. Oneexceptionwas for EDT with subsequent electroless NiP coating, which presented the lowest counter bodies wear rate. The samples withelectroless NiP coating promoted a tribolayer consisting of Nickel, Phosphorus and Oxygen on both the specimens andthecounter bodies, which was apparently responsible for the reduction of friction coefficient and wear rate. The increase of the test time reduced the wear rate of the samples, apparently due the stability of the tribolayers formed, except for the nitrided samples. For the textured specimens, NiP coating showed the best performance in maintaining the surface topography of the specimens after the sliding tests.
Resumo:
Oral route of administration is considered to be the most comfortable, safe and greater adaptation for patients. But, oral route presents some disadvantages such as drugs bioavailability and side effects on the stomach. Some technologies are studied to soften and/or resolve these problems, such as coating with polymeric films, which are able to protect the pharmaceutical form of the acid stomachic environment and to act in the drug release, and mucoadhesive systems, which allow the pharmaceutical form remains a greater time interval in the intestine, increasing the effectiveness of the drug. Cellulose triacetate (CTA) films were produced from cellulose extracted from sugar cane bagasse. The films were prepared with different morphologies (with and without water, acting as non-solvent) and concentrations (3, 6.5 and 10%) of CTA and characterized using scanning electron microscopy (SEM), water vapor permeability (WVP), puncture resistance (PR), enzymatic digestion (DE), and mucoadhesive force evaluation (MF). Microscopy showed the formation of symmetric and asymmetric morphologies. WVP data showed that more concentrated films have higher values for WVP; moreover, asymmetric films had higher values than symmetric films. PR measurements showed that symmetric membranes are more resistant than asymmetric ones. More concentrated films were also more puncture resistant, except for symmetric membranes with CTA concentrations of 6.5 and 10% that did not show significant differences. All of the films presented large mucoadhesive capacities independent of their morphology and CTA concentration. From the results of WVP and RP, a symmetric filme with 6.5% CTA showed better ability and mechanical resistance, therefore, was selected to serve as coating of gellan gum (GG) particles incorporating ketoprofen (KET), which was confirmed by SEM. The selected film presented low values in measurements of the swelling index (SI) and in a dissolution test (DT). TGA analysis showed that the CTA coating does not influence the thermal stability of the particles and there is no incompatibility evidence between CTA, GG and KET. Coated particles released 100% of the ketoprofen in 24 h, while uncoated particles released the same amount in 4 h. The results of this study highlight the potential of CTA in the development of new controlled oral delivery systems.
Resumo:
Background: Several theories, such as the biological width formation, the inflammatory reactions due to the implant-abutment microgap contamination, and the periimplant stress/strain concentration causing bone microdamage accumulation, have been suggested to explain early periimplant bone loss. However, it is yet not well understood to which extent the implant-abutment connection type may influence the remodeling process around dental implants. Aim: to evaluate clinical, bacteriological, and biomechanical parameters related to periimplant bone loss at the crestal region, comparing external hexagon (EH) and Morse-taper (MT) connections. Materials and methods: Twelve patients with totally edentulous mandibles received four custom made Ø 3.8 x 13 mm implants in the interforaminal region of the mandible, with the same design, but different prosthetic connections (two of them EH or MT, randomly placed based on a split-mouth design), and a immediate implant- supported prosthesis. Clinical parameters (periimplant probing pocket depth, modified gingival index and mucosal thickness) were evaluated at 6 sites around the implants, at a 12 month follow-up. The distance from the top of the implant to the first bone-to-implant contact – IT-FBIC was evaluated on standardized digital peri-apical radiographs acquired at 1, 3, 6 and 12 months follow-up. Samples of the subgingival microbiota were collected 1, 3 and 6 months after implant loading. DNA were extracted and used for the quantification of Tanerella forsythia, Porphyromonas gingivalis, Aggragatibacter actinomycetemcomitans, Prevotella intermedia and Fusobacterium nucleatum. Comparison among multiple periods of observation were performed using repeated-measures Analysis of Variance (ANOVA), followed by a Tukey post-hoc test, while two-period based comparisons were made using paired t- test. Further, 36 computer-tomographic based finite element (FE) models were accomplished, simulating each patient in 3 loading conditions. The results for the peak EQV strain in periimplant bone were interpreted by means of a general linear model (ANOVA). Results: The variation in periimplant bone loss assessed by means of radiographs was significantly different between the connection types (P<0.001). Mean IT-FBIC was 1.17±0.44 mm for EH, and 0.17±0.54 mm for MT, considering all evaluated time periods. All clinical parameters presented not significant differences. No significant microbiological differences could be observed between both connection types. Most of the collected samples had very few pathogens, meaning that these regions were healthy from a microbiological point of view. In FE analysis, a significantly higher peak of EQV strain (P=0.005) was found for EH (mean 3438.65 µ∑) compared to MT (mean 840.98 µ∑) connection. Conclusions: Varying implant-abutment connection type will result in diverse periimplant bone remodeling, regardless of clinical and microbiological conditions. This fact is more likely attributed to the singular loading transmission through different implant-abutment connections to the periimplant bone. The present findings suggest that Morse-taper connection is more efficient to prevent periimplant bone loss, compared to an external hexagon connection.
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The intervention research proposed was based on the Cultural-Historical Theory based on the laws and logic of materialism historical-dialectical. Therefore, we tried to design a research process that involved all as responsible for the process. In the field of continuous teacher's training usually has been found dualistic relationship / paradoxical processes as a result of the adopted training models which are characterized by individualist human processes. The teacher training work sought to overcome this dualism, to promote the unveiling of the contradictions with regard to teaching models. As a hypothesis, we imagined that immersed in this process, teachers recognize such contradictions, and this recognition would make the contradictions become the driving force of change in teaching practice, realizing the teaching-learning-development triad as the basis of praxis. Aiming to develop a process of continuing education to bring results to the professional teachers development looking for answer the following research question: How and what the changes of teachers who participated in the Didactic-Formative Intervention process raised the quality of their teaching practices? In this context, the objective of the research was to develop a process of Didactic-Formative Intervention from the perspective of Cultural-Historical Theory with high school teachers in order to theorize about the changes in pedagogical practices of teachers and learn aspects that transform the essence teaching practice. The research involved two high school teachers of a public school in Uberlândia-MG. The training meetings took place at the school through a collective study group between the years 2013 and 2015. As procedures were used two interconnected aspects: classes observations, and a theoretical and methodological training, both for diagnosis and for the process evaluation, the second aspect has a formative dimension, and a didactic dimension (double meaning) to form didactically the teacher and to elaborate didactic procedures. The collected data were analyzed by observing the assumptions of the method, analysis by units and the processuality. As results teachers showed changes in their teaching practices regarding the organization of the pedagogical work and also centered their design educational actions based on learning and development of the students. The presence of continuous diagnosis during the classes, work with a systems of concepts and their conceptual links, problematization as a teaching method can be pointed as meaningful changes in their praxis. Regarding the training activities that emerged from the analysis of the compiled materials and analyzed throughout the process can be emphasized: forming a collective group of school teachers continuous training, diagnostics, development of practical activities, increase relationships among participants, the choice of scientific material used should have direct relation to the needs of the participants, promoting conditions that enable the emergence of contradictions between the pedagogical practice of teachers and teaching based on the perspective of the Cultural-Historical Theory. This research craved to develop and design a teachers' training processes that increase the quality of teachers life and ways of teaching in the Brazilian public school.
Resumo:
SILVA, Thiago Demétrio Nogueira Costa e; CORRÊA, Edison José; MARANHÃO, Técia Maria de Oliveira. O papel da extensão e do trabalho junto à comunidade na formação Médica. Revista Eletrônica Pesquisa Médica, v.1, n.3, p.9-13, jul./set. 2007
Resumo:
SILVA, J. S. P. Avaliação histomorfométrica do efeito do ultrasom pulsado nas falhas ósseas provocadas em fêmures de rato: estudo experimental . 2000. 85 f. Dissertação (Mestrado) – Faculdade de Medicina, Universidade de São Paulo. São Paulo, 2000.
Resumo:
A presente investigação tem como objectivo analisar e descrever as mudanças ocorridas, em particular a transformação narrativa nos pais que frequentaram um grupo de Formação Parental, aplicando para tal, a Grelha de Análise do Processo Terapêutico (GAPT) enquanto instrumento de avaliação da mudança narrativa, ao longo das sessões do programa. A GAPT é constituída por 5 dimensões, que, correspondem aos eixos considerados importantes na transformação narrativa, ou seja na mudança dos sistemas. Nesse sentido foram transcritas e cotadas em painel de peritos, 10 sessões do Programa “Incredible Years”, tendo em conta os 4 subsistemas parentais que o frequentaram. Verificou-se que ocorreram Singularidades, em grande número, desde o início da intervenção e que estas tendiam gradualmente em diversificar-se, flexibilizando a narrativa: no Eixo das Interacções, na Forma como é Narrada a História, na sua Conotação e nos seus Temas Centrais. Em suma a amplificação das Singularidades possibilita a reorganização e reconceptualização coerente das experiências do sujeito, que quanto mais complexa for mais coerente é o seu significado
Resumo:
O presente trabalho de investigação pretendeu estudar e avaliar a transferência da formação para o local de trabalho e os seus impactos ao nível das alterações no desempenho dos colaboradores da EFAPEL, S.A. De forma a tornar possível esse objetivo, o estudo procurou apoiar-se nos pressupostos teóricos que sustêm um projeto desta natureza. Abordando a transferência da formação no contexto organizacional, procurou-se determinar quais os fatores que afetam a mesma para o local de trabalho e para a função desempenhada. Neste sentido, e considerando as três dimensões que influenciam a transferência da formação, o presente estudo pretende, de alguma forma, ser um contributo para um melhor conhecimento da transferência da formação através, da análise empírica de como determinadas variáveis relacionadas com as características individuais, as características da conceção da formação e com as características organizacionais, influenciam a transferência da formação. Os resultados obtidos indicam-nos que os fatores identificados como os que mais influenciam a transferência da formação são, sem dúvida, os fatores organizacionais, o que indica que a cultura e as práticas da organização são decisivas na transferência e eficácia da formação. Deseja-se que os resultados obtidos na investigação contribuam para a melhoria e ajustamentos no processo de gestão e implementação da formação na EFAPEL, S.A., com ganhos de eficiência e eficácia. / This research work was to study and evaluate the transfer of training to the workplace and their impacts in terms of changes in the performance of employees EFAPEL, SA. In order to make this goal possible, the study sought to build on the theoretical assumptions that sustain a project of this nature. Addressing the transfer of training in the organizational context, we sought to determine which factors affect the same for the workplace and for the function performed. In this sense, and considering the three dimensions that influence the transfer of training, the present study intends to somehow be a contribution to a better knowledge transfer through training, the empirical analysis of how certain variables related to individual characteristics, the characteristics of the design of training and organizational characteristics influence the transfer of training. The results show us that the factors identified as those that most influence the transfer of training are undoubtedly organizational factors, indicating that the culture and practices of the organization are crucial in the transfer and training effectiveness. It is hoped that the results obtained in the research will contribute to the improvement and adjustments in management process and implementation of training in EFAPEL, SA, with gains in efficiency and effectiveness.
Resumo:
SILVA, Thiago Demétrio Nogueira Costa e; CORRÊA, Edison José; MARANHÃO, Técia Maria de Oliveira. O papel da extensão e do trabalho junto à comunidade na formação Médica. Revista Eletrônica Pesquisa Médica, v.1, n.3, p.9-13, jul./set. 2007
Resumo:
Cada vez mais as escolas de governo assumem uma posição estratégica apoiando o Estado no aperfeiçoamento dos servidores públicos e dos serviços prestados por eles. A questão qualitativa que perpassa a atuação dessas escolas deve ser atentamente discutida por conta dessas implicações. Por isso, nesse cenário, buscou-se realizar um estudo de caso na Escola Nacional de Administração Pública - ENAP, escola de governo localizada em Brasília - Brasil. O objetivo geral da investigação foi verificar se a utilização da avaliação diagnóstica nos processos de avaliação dos cursos de formação e aperfeiçoamento da área de administração pública oferecidos pela Escola potencializa o grau de aprendizagem discente. Para levantar essa resposta e sua relação com o processo de ensino-aprendizagem, o público alvo escolhido foi a turma de dezembro/2015 do curso Fundamentos do Pregão Eletrônico. A partir da aplicação de uma avaliação diagnóstica junto aos alunos do curso, foi possível levantar dados importantes sobre as práticas pedagógicas e a estrutura do curso. Dos aspectos positivos, é possível ressaltar que a ênfase prática do curso confirmou-se de forma eficaz nas avaliações, até mesmo pelo perfil levantado dos alunos, contudo, um dos pontos frágeis que mais chamou a atenção durante a pesquisa foi o aspecto do cumprimento dos objetivos de aprendizagem. A avaliação diagnóstica revelou que metade da turma não se sentia apta as competências propostas pela ENAP. Ao final, foi possível confirmar a importância da avaliação diagnóstica como instrumento de avaliação e construção do conhecimento, propondo-se a sua implantação no curso Fundamentos do Pregão Eletrônico e, além de outras recomendações, a formação de uma cultura avaliativa na escola baseada na reflexão e na ação estratégica, que da mesma forma que um escultor, vai lapidando o processo educacional. O tema não finda com a obtenção e análise dos dados apresentados na pesquisa mas traz contribuições relevantes para a comunidade científica e poderá ainda, ser material importante para estudos futuros na área da excelência da Gestão Pública relacionada às escolas de governo.
Resumo:
Relatório Final de Estágio apresentado à Escola Superior de Dança, com vista à obtenção do grau de Mestre em Ensino de Dança.
Resumo:
Campo visual - Zona do espaço perceptível por um olho fixo, toda a área que é visível com os olhos fixados num determinado ponto, área passível de ser vista para a frente, para os lados (direito e esquerdo), para cima e para baixo, quando o olho se encontra imóvel num ponto fixo. Pode ser monocular (um só olho) ou binocular (os dois olhos simultaneamente.
Resumo:
No período extra-uterino o sistema visual já se encontra totalmente constituído. Desenvolve-se desde o nascimento até à primeira infância. A primeira evidência clínica da visão binocular é demonstrada aos 6 meses de idade – visão estereoscópica. A visão binocular não é inata. O sistema visual decompõe todas as estimulações visuais que se apresentam à retina, em imagens com contraste variável. O cérebro, ao nível do córtex occipital, analisa-as e reconstitui a imagem inicial, com os dados de base, fruto da aprendizagem do indivíduo. É um processo cerebral correspondente à percepção dos objectos no espaço que é realizado em simultâneo para que as imagens obtidas por cada olho se formem sobre as respectivas fóveas. Pode ser definida como a visão conseguida através da coordenação dos dois olhos, de modo que as imagens de cada olho separadamente possam ser apreciadas como uma impressão mental única na parte visual do córtex cerebral.
Resumo:
SILVA, J. S. P. Avaliação histomorfométrica do efeito do ultrasom pulsado nas falhas ósseas provocadas em fêmures de rato: estudo experimental . 2000. 85 f. Dissertação (Mestrado) – Faculdade de Medicina, Universidade de São Paulo. São Paulo, 2000.
Resumo:
Esta dissertação é composta por 5 artigos.