Cette étude porte sur l'influence des organisations de services (CLSC et cabinets privés) et des caractéristiques familiales (âge et scolarité de la mère, rang de l'enfant) sur l'état vaccinal et le ...respect du calendrier de vaccination. La population de l'étude est composée des 209 enfants nés en 1991 et domiciliés dans la municipalité régionale de comté de Montmagny au Québec. Un état vaccinal incomplet est observé uniquement chez les enfants dont les mères sont peu scolarisées. Après ajustement pour la scolarité de la mère, les enfants vaccinés en cabinets privés sont 13,3 fois plus à risque d'avoir un statut vaccinal incomplet que ceux vaccinés en CLSC. Une relation semblable mais non significative est observée quant au respect du calendrier de vaccination. Les facteurs expliquant ces résultats sont les mécanismes de contact et de rappel mis en place par les CLSC. L'efficacité de ces mécanismes semble être reliée à la responsabilité populationnelle des CLSC. The objective of this study was to determine the effect of practice settings (CLSC and private office) and family characteristics (mother's age and education, children's rank in families) on children's immunization status and adherence to the immunization schedule. The study population was composed of 209 children born in 1991 and residing in the Regional Municipal County of Montmagny, Quebec. After adjusting for mother's education, those children vaccinated in a private office were at 13.3 times higher risk for incomplete immunization than those vaccinated in a CLSC. A similar but nonsignificant result was obtained regarding adherence to the immunization schedule. The factors likely to account for the results are the first contact and follow-up mechanisms put into place by the CLSC. The effectiveness of such mechanisms seems to be related to their population-based rather than client-oriented responsibility.
The birth of a child is described with Down syndrome followed by the conception of a fetus bearing the t(21q21q) chromosome in 100% of their cells in a women mosiac for the translocation in less than ...10% of 2 of her examined tissues and in none of the cells in her peripheral blood. Various hypotheses for explaining the above findings are discussed. The importance of examining as many parental tissues as possible for the detection of low percentage mosiacism is stressed.
This study examined the mitogenic potential of crude lowbush blueberry (Vaccinium angustifolium) extracts using an in-vitro lymphocyte-cell proliferation assay. Plant lectins such as ...phytohemagglutinin (PHA), concanavalin A (con A), and pokeweed mitogen (PWM) have been shown to stimulated lymphocytes into mitogenesis (cell proliferation) and differentiation. Recent research on fruits, especially berries, has shown that plant products in some fruits exhibit a wide range of positive biological effects. Peripheral blood cultures were used to examine the potential mitogenic activity of blueberry extracts on lymphocytes. Extracts from the stems, fruits, and roots of lowbushy blueberry were obtained and added to lymphocyte blood cultures at a 1/400 dilution. After 72 hours of incubation, the cells were harvested, mounted and an analysis of mitotic index using the Poisson distribution was conducted. Mitotic figures revealed a significant mitogenic effect for blueberry fruit and blueberry roots. The mitotic index for cultures containing blueberry fruit extract were 5.6%, compared to 2.5% for the berry controls and 2.9% for root extracts compared to 1.7% for root controls. The results suggest that (an) active principle(s) produced in the Vaccinium angustifolium may have the capacity to increase adaptive immune cell populations. However, it is unclear whether the phytochemical agent(s) involved increase(s) of metaphase nuclei by simply augmenting the effects of PHA and/or whether the extract has properties that may sensitize T or B cells.
Overview of the TFTR D&D program Raftopoulos, S.; Barnes, G.; Chrzanowski, J. ...
Proceedings of the 19th IEEE/IPSS Symposium on Fusion Engineering. 19th SOFE (Cat. No.02CH37231),
2002
Conference Proceeding
The Tokamak Fusion Test Reactor (TFTR) operated for 15 years, from 1982 to 1997. From November 1993 to April 1997 a mixture of deuterium-tritium (D-T) was used to fuel experiments, leaving the ...reactor system in an activated and contaminated state. In this condition, the removal of the TFTR and its subsystems is greatly complicated. In 1999, PPPL commenced the TFTR Decontamination and Decommissioning (D&D) Project. The objectives of the D&D projects are to completely remove the TFTR in a safe, efficient and cost effective manner. To date all diagnostics, structural components and ancillary systems have been removed, and the tokamak is in the process of being sectioned into smaller pieces. This paper will describe the criteria, the methods employed and the successes of the D&D Project.
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