Browsing by Author "Malan, C."
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- ItemAdenosine deaminase estimations in the differentiation of pleural effusions(Health & Medical Publishing Group, 1982-10) Maritz, F. J.; Malan, C.; Le Roux, I.Adenosine deaminase (ADA) estimations were performed on the pleural fluid from 368 effusions. The mean (±SD) ADA concentration in tuberculous effusions was 92.11 ± 37.05 U/l, and these values were found to be highly statistically different from the 23.3 ± 13.15 U/l in secondary malignant tumours of the pleura, the 34.86 ± 14.2 U/l in mesotheliomas, and the 23.81 ± 15.07 U/l in pulmonary embolism. The ADA values of 64.3 ± 44.95 UlI in lymphoproliferative disorders were less significantly different. No statistical difference could be found between values in the tuberculous group and the ADA levels of 97.57 ± 82 U/l found in para-infective effusions, but these could be distinguished from each other by microscopic examination of the pleural fluid. The importance of ADA estimations in the diagnosis and differentiation of tuberculous effusions is discussed and the role of microscopy is emphasized.
- ItemHormonal placental functions and intrauterine growth retardation in patients with positive contraction stress tests(Health & Medical Publishing Group, 1981) Odendaal, H. J.; Malan, C.; Oosthuizen, J.Human placental lactogen (HPL) and urinary and serum oestriol levels were studied in patients in whom the contraction stress test was positive. After birth the infants were assessed for growth retardation. Low PHL, serum oestriol and urinary oestrogen levels were found in 66%, 30% and 15% of patients respectively. Gestational ages were known in 148 patients, of whom 72 (49%) had infants whose weights were below the 10th percentile for gestational age. HPL values were low in 81% of mothers who gave birth to growth-retarded infants, but serum and urinary oestriol levels were low in only 43% and 21% respectively. When both a positive stress test and a low HPL value were present 69% of infants were growth retarded. The incidence of growth retardation rose to 85% when both HPL and serum oestriol levels were abnormal in patients with positive contraction stress tests. In this study estimation of HPL levels was found to be superior to that of oestrogen levels in detecting growth-retarded infants.
- ItemManagement development of junior officers in the SA Army(Stellenbosch : Stellenbosch University, 1999-12) Malan, C.; Schwella, E.; Stellenbosch University. Faculty of Economic and Management Sciences. Dept. of School of Public Leadership.ENGLISH SUMMARY: Guided by the transformation process of the Public Service, the SA National Defence Force (SANDF) transformation process, based on the Leadership, Command, and Management Philosophy (LCAMPS-model), was launched on 27 April 1994. The SA Army as component of the SANDF, requires skilled commanders and leaders to manage in the future. A lack of management content was observed in the development training of junior officers in the SA Army. This study is aimed at investigating the alleged insufficient management development of junior officers during their training in the SA Army. A study of the theory of management and the development thereof is undertaken. This is supplemented by a quantitative analysis of the actual job descriptions, performance evaluation and development training of junior officers in the SA Army. After comparing the theory with practice, it was found that current development training of junior officers does not sufficiently include management functions and skills. The present training must be changed to include management development, for Junior officers to act as future managers.
- ItemUrinary porphyrins and porphyrin precursors in normal pregnancy. Relationship to urinary total oestrogen excretion(Health and Medical Publishing Group (HMPG), 1975) De Klerk, M.; Weideman, A.; Malan, C.; Shanley, B. C.The relationship between urinary excretion of porphyrins, porphyrin precursors and total oestrogens in normal pregnancy was investigated. Significant increases in total oestrogen, delta aminolaevulinic acid (ALA) and coproporphyrin (COPRO) excretion were noted. However, no close correlation was found between total oestrogen excretion and urinary output of ALA and COPRO. The results suggest that the observed increases in ALA and COPRO excretion during pregnancy may not simply be the result of steroid mediated induction of hepatic haem biosynthesis, as has been proposed.