Browsing by Author "Thom, J. C."

Now showing 1 - 4 of 4
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    Clinical and cytogenetic aspects of the 21 deletion syndrome
    (Health and Medical Publishing Group (HMPG), 1975) Gericke, G. S.; Steyn, M. F.; Retief, A. E.; Thom, J. C.; Van Niekerk, W. A.
    The clinical, cytogenetic and dermatoglyphic findings in a patient with a ring chromosome 21 are presented. This anomaly acts as a deletion of chromosomal material and results in specific congenital defects. A comparison is made with 24 cases of deletions involving chromosome 21 described in the literature. Six of these have been studied by means of recently developed chromosome banding techniques. Cases presumably arise through somatic non disjunction or chromosome breakage. When the chromosomes of both parents are normal the recurrence risk is negligible.
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    Clinical trial of a milk formula for infants of low birth weight
    (Health & Medical Publishing Group, 1984) Thom, J. C.; De Jong, G.; Kotze, T. J. van N.
    An infant milk formula specially designed to meet the specific needs of the small premature infant was compared with a modified infant milk formula in common use. Healthy infants of very low birth weight were fed with either the specially designed infant milk formula or the standard modified infant milk formula. No statistically significant differences between the two groups of infants were found, although the weight gain, skinfold thickness, serum total protein, albumin and calcium values were marginally better at 28 days in the group fed with the specially designed formula.
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    The effect of intravenous amino acids on plasma amino acid concentration during total parenteral nutrition in infants with necrotizing enterocolitis
    (Health & Medical Publishing Group, 1981) Thom, J. C.; Victor, T.; Pichanick, A. M. E.
    Plasma aminograms of infants receiving total parenteral nutrition as part of the treatment for necrotizing enterocolitis were studied. Their ages varied from 2 to 60 days and their mean birth mass was 1621 g (range 760-2550 g). The intravenous administration of amino acids produced changes in plasma amino acid levels corresponding to the concentration of individual amino acid levels in the solution employed: higher levels of amino acids in the infusate produced increased plasma levels, whereas low plasma levels were obtained for amino acids not present or present in small amounts according to the solution used. The infants did not appear to suffer in any way, but the long-term effects still have to be evaluated. Pending further knowledge in this regard it is suggested that plasma amino acid levels should be maintained as near to normal values as possible. This could probably be achieved by the use of amino acid solutions specially formulated according to the amino acid profile of breast milk or the plasma amino acid profile of normal infants.
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    "Moenie op die land seil nie" : wysheid en hermeneutiek in die akoesmata van pitagoras
    (Department of Ancient Studies, Stellenbosch University, 2004) Thom, J. C.
    Een van die belangrikste nalatenskappe van die antieke Grieke is dat hulle die basis gelê het vir die moderne wetenskaplike wêreldbeskouing. Die proses waardeur die vroeë Grieke vanaf ’n mitologiese verklaring van die werklikheid tot ’n meer abstrakte, rasionele nadenke oor natuurlike en sosiale verskynsels gekom het, het egter nie oornag plaasgevind nie: die tydperk vanaf die eerste natuurfilosoof, Tales, tot Plato en Aristoteles beloop meer as twee eeue. Die ontstaan en verloop van hierdie proses bied vir ons vandag nog belangrike insigte in die aard van menslike denke en in die wyse waarop die mens probeer sin maak van sy fisiese en sosiale omgewing. Ironies genoeg het ons vandag, in die sogenaamde postmoderne tyd, miskien meer waardering vir die kompleksiteit waarmee hierdie vroeë denkers geworstel het as mense van ’n paar dekades gelede.