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Urinary iodine levels in children (5–11 years) and in adult males and females (15–44 years) of three ecological zones (hilly, flood-prone and plains) of Bangladesh were analyzed to determine the status of biochemical iodine deficiency in the country. Data indicated that a large majority of the population all over Bangladesh have biochemical iodine deficiency urinary iodine excretion (UIE) less than the accepted cut-off level of 10 μg/dl. Adults were deficient to comparable degrees, 31.3% severely iodine deficient. The flood-prone zone was less affected: 71.7% children had iodine deficiency and 25% were severely deficient. Adults of this zone were less affected than the children. Iodine deficiency was least severe in the plain zone: 59.8% children were biochemically iodine deficient and of them 23.4% had UIE less than 2.0 μg/dl. In the case of the adults of this zone, 60.8% were biochemically iodine deficient and 20.6% had severe iodine deficiency. The results indicate that Bangladesh as a whole is an iodine deficient region, with the hilly zone being the most severely affected. Children were slightly more affected than the adults, and females were more affected than the males.  相似文献   
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Saeed Quazi 《Interchange》1996,27(2):173-197
The age profile and other characteristics of the full-time professoriate in Canada and Ontario are discussed, with particular focus on the geographical source, previous activity, and age distribution of new appointments to university teaching posts. Patterns of inter-institutional mobility within the regions of Canada for junior and senior faculty are presented. Analysis includes the sources and implications of attrition and changing age profile trends. Historical data, in most cases from the 1970s onward, are presented and analyzed. The increasing use of part-time faculty is discussed, particularly in the context of diminishing federal and provincial government financial support for universities. Discussion on the future demand and supply of professors in Canada and Ontario is presented, but focuses on Faculties of Education. Some reference is made to the comparable situation in Australia, the United States, and other major industrialized countries. Despite the rapidly aging professoriate, the article concludes that there will not be an overall shortage of university teachers in the coming decade or so.  相似文献   
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