Jair de Oliveira

Influence of some factors on the fit of cemented crowns

In the study, cast gold crowns were cemented similar to methods used for patients. Conclusions were that: 1. Fresh cement painted with a camel brush in the part of the crown to be cemented promotes a better fit than when the crown is completely filled with cement. 2. Mechanical vibration of the crown at cementation promotes a better fit. 3. Venting the crown, an internal relief by acid etching, or a combination of both these procedures improve the seating of the crown during cementation. 4. The association of one or numerous variables used in this study considerably improves the fit of the cemented crown.

Influence of pressure and vibration during cementation

Vibration, applied at the beginning of cementation, improves the fit of MOD inlays and cast complete crowns when they are compared to the same castings cemented without vibration. The Medart pressure applicator produced better adaptation. Orange wood blocks and Burlew disks produced similar results. They were less efficient than the Medart pressure applicator. Cotton rolls resulted in the highest fit discrepancy.

CICLO DE VIDA ORGANIZACIONAL: ALINHAMENTO DOS ESTÁGIOS DAS PEQUENAS EMPRESAS EM QUATRO DIMENSÕES

O proposito deste trabalho e apresentar uma configuracao das especificidades de gestao da pequena empresa em quatro dimensoes: Dirigente, Organizacao, Estrategia e Contexto Organizacional e, a partir dessas dimensoes, propor uma categorizacao do ciclo de vida organizacional. A categorizacao foi desenvolvida a partir de trabalhos consagrados na literatura internacional. Como resultado, formulou-se um conjunto de categorias, que visam facilitar a identificacao do estagio organizacional da pequena empresa do setor metal-mecânico.

Caracterização das pequenas empresas do setor metal-mecânico a partir das dimensões: processos produtivos e ambiente / Characterization of small companies in the metal-mechanic sector from the dimensions: processes and organizational environment

O principal objetivo desse artigo e apresentar a caracterizacao das pequenas empresas do setor metal-mecânico de Sao Carlos – SP, a partir das dimensoes: Processos Produtivos e Contexto Organizacional, por meio de constructos teoricos, para, posteriormente, apresentar os resultados advindos da pesquisa. Para se caracterizar as empresas do setor metal-mecânico, foram realizadas as seguintes etapas: 1) mapeamento e levantamento das empresas do setor metal-mecânico de Sao Carlos – SP; 2) selecao da amostra populacional, composta por 53 empresas; 3) aplicacao de um questionario semi-estruturado composto por 53 questoes, respondido pelos dirigentes, para a caracterizacao das empresas e; 4) tratamento dos dados atraves de tecnicas estatisticas. A principal finalidade da caracterizacao de um setor, por meio de variaveis que compreendam a totalidade da organizacao, e o seu conhecimento, gerando assim aporte teorico para futuras pesquisas. A caracterizacao das pequenas empresas e descritiva e o tratamento dos dados e feito por meio de tecnicas estatisticas, como a apresentacao de graficos e distribuicao de frequencias. Finalmente, sao apresentados os resultados ineditos advindos da pesquisa sobre a pequena empresa do setor metal-mecânico de Sao Carlos – SP, importantes para a compreensao das caracteristicas e especificidades das pequenas empresas do setor metal-mecânico de Sao Carlos - SP. The main objective of this paper is to present a characterization of the metal-mechanic sector of Sao Carlos – SP, from the dimensions: Production Processes and Organizational Context, through theoretical constructs, to then present the results derived from the research. To characterize the companies in the metal-mechanic sector, the following steps were made: 1) map and survey of companies of the metal-mechanic sector of Sao Carlos - SP 2) selecting the sample population, comprising 53 companies, 3) application of a semi-structured questionnaire with 53 questions, answered by leaders in the characterization of the companies and 4) processing of data using statistical techniques. The main purpose of the characterization of a sector by means of variables is to understand the entire organization and know how the sector is, thereby raising the theoretical support for future research. The characterization of small businesses is descriptive and data handling is done by means of statistical techniques, such as presentation charts and frequency distributions. Finally, new results are showed, derived from research on small business of the metal-mechanic of Sao Carlos - SP, important for understanding the characteristics and needs of small companies in the metal-mechanic sector of Sao Carlos - SP.

Estilos gerenciais dos dirigentes de pequenas empresas: estudo baseado no ciclo de vida organizacional e nos conceitos de funções e papéis do administrador

Objective – To identify the managerial styles of small business managers at every stage of the organizational life cycle, considering managers’ work, approaches to process and roles. Methodology – This research was considered of applied nature, of quantitative approach, as descriptive from the point of view of the objectives, and as a survey because of its technical procedures. Seventy companies belonging to the metallurgical-mechanical industry in São Paulo, Brazil, took part in the study. Theoretical framework – It was found that the owner of small businesses change the valuation of the functions and of the roles of the administrator, according the company’s development stage. Three management styles have been identified as the most prominent of small business owner, considering the organizational life cycle. Findings – It was found that the owner of small businesses change the valuation of the functions and of the roles of the administrator, according the company’s development stage. Three management styles have been identified as the most prominent of small business owner, considering the organizational life cycle. contributions – This research presents evidence that there is a relationship between the functions and roles of managers (theorized for large companies) and the work carried out by small business leaders, as well as the feasibility of researching the functions and roles of managers alongside each other, rather than individually, as most other studies do.

Caracterização das pequenas empresas do setor metal-mecânico a partir das dimensões estrutura organizacional e dirigentes

As pequenas empresas do setor metal-mecânico de Sao Carlos, SP, sao geradoras de empregos, promotoras do desenvolvimento local e de novas tecnologias, constituindo-se em um importante objeto de estudo. O objetivo desse artigo e sugerir uma categorizacao do setor metal-mecânico e utiliza-la para apresentar uma caracterizacao das pequenas empresas de Sao Carlos, SP. Para abordar as especificidades inerentes as pequenas empresas desse setor, realizou-se um mapeamento e caracterizacao do setor metal-mecânico, com 52 empresas participantes, atraves de um questionario semiestruturado, com 53 perguntas sobre todas as variaveis organizacionais que compoem uma organizacao, para uma melhor compreensao dessas empresas. A pesquisa e quantitativa e o tratamento dos dados e estatistico. A partir desse esforco, tornou-se possivel reconhecer as especificidades acerca do setor metal-mecânico. As variaveis consideradas nesse artigo sao a Estrutura Organizacional e o Perfil do Dirigente. Como principais resultados da pesquisa, constatou-se que a estrutura organizacional predominante possui poucos niveis hierarquicos e a tomada de decisoes se centraliza na figura do dirigente.