The Microstructure of lanthanum hexaboride(LaB6)polycrystalline has been studied by using transmission electron microscope.This shows that the ideal LaB6 polycrystalline can be obtained by sintering ingots at the temp...The Microstructure of lanthanum hexaboride(LaB6)polycrystalline has been studied by using transmission electron microscope.This shows that the ideal LaB6 polycrystalline can be obtained by sintering ingots at the temperature of 2273 K for holding time of 120 min in Ar pressure of 800 Torr,where the ingots are formed by pressing LaB6 powder at room temperature at a pressure of 0.4-0.5 GPa.The particles in LaB6 polycrystalline hardly bind;there are only a few of pores at the joint parts of three particles and a few of impurities exist in some pores.The sintering process for fabricating LaB6 polycrystalline is analysed and the formation of the pore and the impurities are studied from the point of surface tension.展开更多
【目的】研究不同类型沙眼衣原体蛋白在输卵管性不孕中的致病作用,预测具有临床检测价值的沙眼衣原体蛋白抗体。【方法】本研究共纳入输卵管性不孕组(TFI)58例,正常生育组(FC)41例,非输卵管性不孕组(IFC)18例。血清检测CT-IgG ELISA试...【目的】研究不同类型沙眼衣原体蛋白在输卵管性不孕中的致病作用,预测具有临床检测价值的沙眼衣原体蛋白抗体。【方法】本研究共纳入输卵管性不孕组(TFI)58例,正常生育组(FC)41例,非输卵管性不孕组(IFC)18例。血清检测CT-IgG ELISA试剂盒检测三组人群血清中CT-IgG的表达情况;利用前期获得表达、纯化的6种沙眼衣原体蛋白,建立这6种沙眼衣原体蛋白抗体的ELISA检测方法,分别检测6种沙眼衣原体蛋白抗体在TFI组、FC组和IFC组血清中的表达情况;对三组研究对象6种沙眼衣原体蛋白抗体的OD值进行统计描述,以CT-IgG的检测结果(阳/阴)为参考标准,绘制6种沙眼衣原体蛋白抗体的受试者工作特征曲线,利用约登指数确定各抗体的截断值。以TFI作为参考类,将FC、IFC分别与参考类建立两个无序多分类logistic回归模型,探究沙眼衣原体蛋白抗体、年龄预测TFI、FC和IFC的价值,并利用后退法筛选变量。【结果】各组研究对象CT376和CT443抗体OD值不全相同,CT-IgG阳性率不全相同。经两两比较发现,TFI组的CT376抗体OD值高于FC组(0.86 vs. 0.60,P=0.026)。TFI组的CT376抗体OD值高于IFC组(0.86 vs. 0.64,P=0.026)。IFC组CT443抗体OD值高于TFI组(0.59vs. 0.34,P=0.036),高于FC组(0.59 vs. 0.30,P=0.02)。经过比较,CT376抗体的阳性率在三组间不全相同(P<0.05);无序多分类logistic回归分析结果表明:TFI与FC建立的无序多分类logistic回归分析结果显示,CT-IgG [P <0.001,OR=0.084,95%CI(0.025,0.284)]、CT376抗体[P=0.068, OR=0.359,95%CI(0.120,1.078)]。CT-IgG是输卵管性不孕发生的独立危险因素,CT376抗体尚不能成为输卵管性不孕的独立危险因素;TFI与IFC建立的无序多分类logistic回归分析显示,在不孕的患者中,CT-IgG [P<0.05,OR=0.194,95%CI(0.046,0.817)]、CT376抗体[P<0.05,OR=0.176,95%CI(0.038,0.818)]和CT381抗体[P<0.05,OR=0.112,95%CI(0.016,0.796)]是输卵管性不孕发生的独立危险因素。【结论】CT376抗体在输卵管性不孕患者中的表达情况高于正常生育及非输卵管性不孕的人群,提示CT引起的输卵管性不孕或许与CT376有关。检测CT-IgG和CT376血清抗体可能对CT引起的输卵管性不孕有预测价值。展开更多
基金Supported by the High-Technology Foundation of Shandong(GXB991).
文摘The Microstructure of lanthanum hexaboride(LaB6)polycrystalline has been studied by using transmission electron microscope.This shows that the ideal LaB6 polycrystalline can be obtained by sintering ingots at the temperature of 2273 K for holding time of 120 min in Ar pressure of 800 Torr,where the ingots are formed by pressing LaB6 powder at room temperature at a pressure of 0.4-0.5 GPa.The particles in LaB6 polycrystalline hardly bind;there are only a few of pores at the joint parts of three particles and a few of impurities exist in some pores.The sintering process for fabricating LaB6 polycrystalline is analysed and the formation of the pore and the impurities are studied from the point of surface tension.
文摘【目的】研究不同类型沙眼衣原体蛋白在输卵管性不孕中的致病作用,预测具有临床检测价值的沙眼衣原体蛋白抗体。【方法】本研究共纳入输卵管性不孕组(TFI)58例,正常生育组(FC)41例,非输卵管性不孕组(IFC)18例。血清检测CT-IgG ELISA试剂盒检测三组人群血清中CT-IgG的表达情况;利用前期获得表达、纯化的6种沙眼衣原体蛋白,建立这6种沙眼衣原体蛋白抗体的ELISA检测方法,分别检测6种沙眼衣原体蛋白抗体在TFI组、FC组和IFC组血清中的表达情况;对三组研究对象6种沙眼衣原体蛋白抗体的OD值进行统计描述,以CT-IgG的检测结果(阳/阴)为参考标准,绘制6种沙眼衣原体蛋白抗体的受试者工作特征曲线,利用约登指数确定各抗体的截断值。以TFI作为参考类,将FC、IFC分别与参考类建立两个无序多分类logistic回归模型,探究沙眼衣原体蛋白抗体、年龄预测TFI、FC和IFC的价值,并利用后退法筛选变量。【结果】各组研究对象CT376和CT443抗体OD值不全相同,CT-IgG阳性率不全相同。经两两比较发现,TFI组的CT376抗体OD值高于FC组(0.86 vs. 0.60,P=0.026)。TFI组的CT376抗体OD值高于IFC组(0.86 vs. 0.64,P=0.026)。IFC组CT443抗体OD值高于TFI组(0.59vs. 0.34,P=0.036),高于FC组(0.59 vs. 0.30,P=0.02)。经过比较,CT376抗体的阳性率在三组间不全相同(P<0.05);无序多分类logistic回归分析结果表明:TFI与FC建立的无序多分类logistic回归分析结果显示,CT-IgG [P <0.001,OR=0.084,95%CI(0.025,0.284)]、CT376抗体[P=0.068, OR=0.359,95%CI(0.120,1.078)]。CT-IgG是输卵管性不孕发生的独立危险因素,CT376抗体尚不能成为输卵管性不孕的独立危险因素;TFI与IFC建立的无序多分类logistic回归分析显示,在不孕的患者中,CT-IgG [P<0.05,OR=0.194,95%CI(0.046,0.817)]、CT376抗体[P<0.05,OR=0.176,95%CI(0.038,0.818)]和CT381抗体[P<0.05,OR=0.112,95%CI(0.016,0.796)]是输卵管性不孕发生的独立危险因素。【结论】CT376抗体在输卵管性不孕患者中的表达情况高于正常生育及非输卵管性不孕的人群,提示CT引起的输卵管性不孕或许与CT376有关。检测CT-IgG和CT376血清抗体可能对CT引起的输卵管性不孕有预测价值。
