Housing and Urban Development in the People's Republic of China(A Selected Bibliography 1980-1987)

(Continued from volume 6 Number 2 June 1990)74.“Architecture and Environment”Shixing BaoChina City Planning Reviewvol.3,no.2December 1986,pp.56-63Uses Beijing as an example to discusspreservation problems generally.Two usefulmaps with height control areas for inner cityand city as a whole.75.“Awaiting That Bus”Beijing Reviewvol.29,no.3January 20,1986,p.

Development of Melanoma and Cancer without Decreasing of Cambial Cells Number in Morphofunctional Zones

In age groups from 20 to 60 years old, proliferation and differentiation of cells happen in a morphofunctional zone, in the electric field excited by 12 pairs of mother and daughter cells, turned out at cambial cells division. Thus in daughter cells the Src SH2 domain necessary both for cytoskeleton formation and tyrosinase activization is activated. If the conditions for strengthening of tyrosinase activity are created in organism, the portion of Src participating in the cytoskeleton building can decrease to critical level that will lead to development of a malignant tumor. If action of a stimulating factor is quite strong, proliferation of malignant cells begins at a stage of melanocyte, and a melanoma occurs. If action of factors is long and not strong, more remote descendants of daughter cells proliferate, and a cancer appears. In order that there will be a normal differentiation of malignantly changed daughter cells, it is necessary to block the tyrosinase. Thus all SH2 domains will go on cell cytoskeleton formation.

深圳市35～44岁人群口腔健康行为抽样调查分析

目的：评估深圳市35~44岁人群口腔健康行为,为深圳市口腔卫生保健工作提供信息支持。方法采用多阶段随机抽样方法,抽取深圳市35~44岁常住居民共1230人,按照《第三次全国口腔健康流行病学问卷调查方案》设计口腔健康调查问卷,就行为生活方式、口腔卫生服务的使用及获取口腔保健知识的来源及途径等进行调查分析,回收有效问卷1224份。结果深圳市35~44岁人群中,91.7%每天刷牙,55.6%每天刷牙2次及2次以上；72.1%的人使用含氟牙膏刷牙,牙线使用率极低；近1年内口腔科就诊率15.9%,90%以上是因为急、慢性牙疼和其他口腔问题,进行定期口腔检查的人口比率极少。电视/广播仍为获取口腔卫生知识的最主要途径,而其它途径少。结论提高人群口腔预防保健意识、改变行为习惯,丰富口腔健康教育内容及形式仍然是深圳市今后口腔预防保健工作的重点。