本实验观察了低剂量 X 射线整体和离体照射后对小鼠脾淋巴细胞丝裂原反应的影响。结果表明,X 射线全身照射后小鼠脾脏 T、B 淋巴细胞对刀豆蛋白-A(Con A)和细菌脂多糖(LPS)的反应较对照组增强,尤以75 mGy 组最为明显。在离体照射后,脾...本实验观察了低剂量 X 射线整体和离体照射后对小鼠脾淋巴细胞丝裂原反应的影响。结果表明,X 射线全身照射后小鼠脾脏 T、B 淋巴细胞对刀豆蛋白-A(Con A)和细菌脂多糖(LPS)的反应较对照组增强,尤以75 mGy 组最为明显。在离体照射后,脾淋巴细胞对 Con A 的反应未见明显改变,而对 LPS 反应则低于对照组。提示低剂量 X 射线照射可刺激 T 细胞反应增强。展开更多
In this paper, closure operators of lattice-valued propositional logic LP(X) are studied. A family of classical closure operators are defined and the relation between them and closure operators of LP(X) is investi...In this paper, closure operators of lattice-valued propositional logic LP(X) are studied. A family of classical closure operators are defined and the relation between them and closure operators of LP(X) is investigated. At the same time, a tool for checking compactness of LP(X) is given.展开更多
文摘本实验观察了低剂量 X 射线整体和离体照射后对小鼠脾淋巴细胞丝裂原反应的影响。结果表明,X 射线全身照射后小鼠脾脏 T、B 淋巴细胞对刀豆蛋白-A(Con A)和细菌脂多糖(LPS)的反应较对照组增强,尤以75 mGy 组最为明显。在离体照射后,脾淋巴细胞对 Con A 的反应未见明显改变,而对 LPS 反应则低于对照组。提示低剂量 X 射线照射可刺激 T 细胞反应增强。
基金Supported by the National Natural Science Foundation of China(60474022)
文摘In this paper, closure operators of lattice-valued propositional logic LP(X) are studied. A family of classical closure operators are defined and the relation between them and closure operators of LP(X) is investigated. At the same time, a tool for checking compactness of LP(X) is given.