Use of mechanically alloying for preparation of Ti-35at.%Al results in significant reduction in crystal size, so the ductility of alloy can be improved Consolidation of Mechanically alloyed γ -TiAl is difficult becau...Use of mechanically alloying for preparation of Ti-35at.%Al results in significant reduction in crystal size, so the ductility of alloy can be improved Consolidation of Mechanically alloyed γ -TiAl is difficult because of its poor workability. The present paper will discuss recent studies on consolidation behavior by using different methods, such as explosive compaction, hot isostatic pressing, and rapid omnidirectional compaction, etc.. The microstructure and property of the samples are evaluated.展开更多
目的分析行尿脱落细胞荧光原位杂交(fluorescence in situ hybridization,FISH)的尿路上皮癌(urothelial carcinoma,UC)患者临床资料,探索影响尿脱落细胞在诊断UC中阳性率的临床因素。方法回顾性分析作者医院2014-08/2021-09月134例行F...目的分析行尿脱落细胞荧光原位杂交(fluorescence in situ hybridization,FISH)的尿路上皮癌(urothelial carcinoma,UC)患者临床资料,探索影响尿脱落细胞在诊断UC中阳性率的临床因素。方法回顾性分析作者医院2014-08/2021-09月134例行FISH的UC患者资料。对影响FISH诊断结果的相关因素进行单因素分析,再对单因素分析有统计学意义的指标进行多因素Logistic回归分析,采用受试者工作特征(receiver operating characteristic,ROC)曲线确定截断点、灵敏度、特异度和曲线下面积(area under the curve,AUC)。结果单因素分析中差异有统计学意义的因素:有无夜尿增多、肿瘤数量、肿瘤部位、是否血尿以及T分期纳入多因素Logistic回归分析,结果显示,无夜尿增多、肿瘤多发、肿瘤部位在膀胱、标本有血尿、T分期为T2~T4是患者FISH检测阳性的独立危险因素,其OR值分别为0.21、4.78、0.36、3.25和5.70。ROC曲线的AUC为0.84,95%置信区间(confidence interval,CI)为(0.77~0.91),灵敏度为0.84,特异度为0.70,约登指数为0.54,模型区分度较高。结论肿瘤数量、肿瘤部位、夜尿、血尿、T分期在FISH诊断UC中具有重要意义,综合考虑上述因素有助于优化FISH在UC诊断中的应用。展开更多
文摘Use of mechanically alloying for preparation of Ti-35at.%Al results in significant reduction in crystal size, so the ductility of alloy can be improved Consolidation of Mechanically alloyed γ -TiAl is difficult because of its poor workability. The present paper will discuss recent studies on consolidation behavior by using different methods, such as explosive compaction, hot isostatic pressing, and rapid omnidirectional compaction, etc.. The microstructure and property of the samples are evaluated.
文摘目的分析行尿脱落细胞荧光原位杂交(fluorescence in situ hybridization,FISH)的尿路上皮癌(urothelial carcinoma,UC)患者临床资料,探索影响尿脱落细胞在诊断UC中阳性率的临床因素。方法回顾性分析作者医院2014-08/2021-09月134例行FISH的UC患者资料。对影响FISH诊断结果的相关因素进行单因素分析,再对单因素分析有统计学意义的指标进行多因素Logistic回归分析,采用受试者工作特征(receiver operating characteristic,ROC)曲线确定截断点、灵敏度、特异度和曲线下面积(area under the curve,AUC)。结果单因素分析中差异有统计学意义的因素:有无夜尿增多、肿瘤数量、肿瘤部位、是否血尿以及T分期纳入多因素Logistic回归分析,结果显示,无夜尿增多、肿瘤多发、肿瘤部位在膀胱、标本有血尿、T分期为T2~T4是患者FISH检测阳性的独立危险因素,其OR值分别为0.21、4.78、0.36、3.25和5.70。ROC曲线的AUC为0.84,95%置信区间(confidence interval,CI)为(0.77~0.91),灵敏度为0.84,特异度为0.70,约登指数为0.54,模型区分度较高。结论肿瘤数量、肿瘤部位、夜尿、血尿、T分期在FISH诊断UC中具有重要意义,综合考虑上述因素有助于优化FISH在UC诊断中的应用。
