Showing papers by "University of Lisbon published in 1975"
01 Jan 1975
TL;DR: In this paper, a general two-dimensional theory was developed in the same lines as the three-dimensional one considered before, where the two dimensional domain was denoted by S and its boundary by Γ.
Abstract: A general two-dimensional theory will be developed in the same lines as the three-dimensional one considered before. The two-dimensional domain will be denoted by S and its boundary by Γ
75 citations
TL;DR: A case of diffuse leiomyomatosis of the esophagus in a 21-year-old woman with a 5-year history of dysphagia is presented and a diffuse tumor involving the lower end of the Esophagus, cardia, upper portion of the stomach, and the tail of the pancreas was found.
Abstract: A case of diffuse leiomyomatosis of the esophagus in a 21-year-old woman with a 5-year history of dysphagia is presented. The radiological appearance was that of achalasia, but at esophagoscopy, a diagnosis of an organic stricture of the lower end of the esophagus was made. During the operation a diffuse tumor involving the lower end of the esophagus, cardia, upper portion of the stomach, and the tail of the pancreas was found. The histological diagnosis was diffuse leiomyomatosis of the esophagus. The individual characteristics of the microscopic picture are described. Distal esophagectomy and total gastrectomy resulted in complete recovery of the patient. This is a very rare condition; only a dozen similar cases have been published before. The data of these patients are presented.
51 citations
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TL;DR: The discrete model of the theory of structures fits into the general scheme presented in Chapter 4 as mentioned in this paper, and the discrete model can be seen as a generalization of the general theory of structure.
Abstract: The discrete model of the theory of structures fits into the general scheme presented in Chapter 4.
11 citations
TL;DR: In this article, the efficiency calibration of a coaxial Ge(Li) detector was established experimentally and fitted to a semi-empirical function based on Mowatt's formula.
10 citations
TL;DR: In this paper, the authors investigated the use of production functions for educational management purposes in Coimbra and Lisbon Universities and found that there is a relation of complementarity between the number of professors and assistants.
Abstract: Production functions were established for the Arts and Law Faculties of Coimbra and Lisbon Universities and for the Higher Institute of Engineering of Lisbon, in which the number of enrolled students was related to the number of professors and assistants. It was possible to find in Coimbra and Lisbon Universities the existence of possibilities of substitution among those factors and economies of scale. In the case of the Higher Institute of Engineering there seems to exist a relation of complementarity between the number of professors and assistants. Also with regard to this Institute, a production function for graduates was estimated which relates them to the expenditures on academic staff and materials. It was found that in this case it was necessary to introduce time as a representative of technological progress, although it was found to be negative. These results are discussed, and the interest and the limitations of the use of production functions for educational management purposes are outlined.
6 citations
TL;DR: In this paper, the effect of debt service on human and nonhuman wealth is introduced into the analysis and it is shown that for the purpose of long-run debt analysis it is not legitimate to treat the cumulated change in saving as an equal change in net worth.
Abstract: This paper reexamines Modigliani's remits of the long effects of an increment in public debt to finance a tax reduction or arising from a free distribution of government bonds Firstly, the effect of debt service on human and nonhuman wealth is introduced into the analysis. Secondly, it is shown that for the purpose of long-run debt analysis it is not legitimate to treat the cumulated change in saving as an equal change in net worth. This leads to a major correction of Modigliani's results.