... 核染色质 nuclear chromation 核周期 nuclear cycle 核分化 nuclear differentia-tion ...
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目的探讨星形细胞瘤的增殖活性，及星形细胞瘤的DNA倍体特性、细胞周期分布和增殖细胞核抗原标记指数(PCNA - LI)与病理分级的关系。
Objective the proliferative activities of astrocytomas and the relationship among DNA ploidy character, cell cycle distribution, PCNA-LI and pathological grades were investigated.
方法用流式细胞仪检测缺血缺氧后不同时间点星形胶质细胞细胞周期变化，并用荧光免疫细胞化学技术测定胶质细胞纤维酸性蛋白（GFAP）和增殖细胞核抗原（PCNA ）的表达水平。
Methods We measured the astrocyte cell cycles in different time after ischemia and anoxia by flow cytometry and detected the levels of GFAP and PCNA with fluorescence immunocytochemistry.
在带弱核的神经网络模型中，得到了分岔周期解稳定性准则。
Stability criteria for the bifurcating periodic solutions are derived in the neural network with weak kernel.
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