Specificity of galactolipids in photochemical reactions coupled with cytochrome c reductions.
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Chloroplasts↗
Biomedical subjects
S B Chang
Publications and source records attributed to S B Chang.
Examination of blood levels of mercurials in practicing dentists using cold-vapor atomic absorption spectrometry.
The toxicity of mercury compounds in dentistry has been an issue of increasing concern. Relatively few data are available concerning the possible in vivo biotransformation of elemental mercury from dental amalgam into more toxic organic mercurials. The present study was designed to evaluate the existence of this in vivo pathway in dentists who work in a confined environment where metallic mercury vapor is constantly present. Two hundred five practicing dentists and 24 nondental controls were asked to participate in this study. The total, inorganic, and organic mercury contents of blood were determined by syringe-injection cold-vapor atomic absorption spectrometry. The student t-test indicates that the total and inorganic mercury levels in blood are significantly different between dentists and nondental controls at the significant level of p less than or equal to 0.05. The organomercurial levels are, however, insignificant at the same test level. This implies that high total and inorganic mercury levels are not correlated with high organomercurial levels in the blood of practicing dentists. Therefore, significant enzymatic conversion of inorganic to organic mercury compounds does not occur in vivo.
Dentists↗
[Study on the families' participation need for women in labor].
This study was done to suggest basic modifications in the present situation for the family of women in labour which is a separation management method. The study design was a descriptive study. The number of the subjects were 80. They were husbands, mothers in law, and mothers of women in labour who were full term and for whom there were no complications, either for the mother or the fetus. Data collection was done with a structured questionnaire which was analyzed using frequencies. The results were as follows, 1. Most of the subjects (95.0%) wanted to participate in the labour process. 2. The subjects wanted to support the women in labour by way of encouraging (95.0%), consoling (95.0%), listening to (75.0%), praying with (68.8%), hand holding (97.5%), stroking (63.8%), helping with respiration control (50.0%), maintaining relaxation (46.3%), changing position (58.8%), and illustration (58.8%). 3. The subjects answered that they expected their participation to have the effect of an easier labour course (52.5%), security for the women in labour (95.0%), and providing a better relationship between the women in labour (66.3%) and the new baby (55.0%). 4. The priority of the response as to who is the best supporter was husband, and mother of the women in labour in that order. It can be concluded that nurses maintained a management method which ignored the needs of the families of women in labour. If given consideration is to be given to these subjects, future programs should initiate ways to let the families participate in the labour process.
Clinical Nursing Research↗