RESUMO:O objetivo do presente estudo é validar a versão de 28 itens do Questionário de Saúde Geral de Goldberg. Participaram uma amostra consecutiva de 384 indivíduos, com mais de 18 anos (entre 18 e 85 anos) de ambos os géneros. Reproduzindo os procedimentos de validação da versão original, utilizou-se uma ACP, encontrando-se uma solução de quatro componentes, resultado idêntico ao estudo original e de outros estudos noutras línguas. Os resultados indicam uma boa consistência interna dos itens, e uma importante consistência na estrutura do GHQ-28 em culturas diferentes, o que suporta a tese de Goldgerg de que existe uma linguagem comum para o distresse psicológico entre culturas. Palavras chave-Questionário de Saúde Geral; estudo de validação; amostra sem doença ______________________________________________________________________ FURTHER VALIDATION OF THE GOLDBERG 28 ITEMS GENERAL HEALTH QUESTIONNAIREABSTRACT: The aim of our study is to contribute for the study of validation of the 28-item version of the General Health Questionnaire (GHQ-28) in a non-clinical population in Portugal. The GHQ-28 was applied to a consecutive sample of 384 individuals belonging to one health region from Portugal, regular users of the health system, from all ages (between 18 and 85 years), both genders, without mental disease. A principal components analysis was applied and a four-factor solution found. The exploratory factor analysis results corresponded to the original factor structure. The findings indicate an important consistency in the factor structure of the GHQ-28 with results from other cultural settings, supporting Goldberg's hypothesis of a common language of psychological distress between cultures.

Superalloy are alloys developed for elevated temperatures applications, where relatively severe mechanical stressing is found, and a high surface stability is frequently required. Improvements in the surface properties of a wide range of alloys have been obtained by the implantation of nitrogen while field test results for industrial tools and components from a diverse range of applications have been positive. The objective of this work is to improve the mechanical surface properties of Inconel 718 by PIII (Plasma Immersion Ion Implantation-PIII). In these experiments, samples of Inconel 718 without heat treatment are used. Nitrogen ions in Inconel samples were implanted: a) for a period of one hour, and b) for a period of 3 hours. Tribological properties of PIII treated samples were compared with the ones for untreated samples are compared. The best result is obtained for the samples treated for 3 hours after 5000 cycles of an unlubricated pin-on-disk test, with very little wear. 993 7th International Symposium on Superalloy 718 and Derivatives