目的:研究微小染色体维持蛋白7 (MCM7)和肿瘤相关钙信号转导蛋白2 (TACSTD2)在甲状腺乳头状癌(PTC)中的表达及临床意义。方法:采用免疫组化方法对109例甲状腺良恶性病变(甲状腺乳头状癌69例、结节性甲状腺肿组织40例、癌旁甲状腺组织69...目的:研究微小染色体维持蛋白7 (MCM7)和肿瘤相关钙信号转导蛋白2 (TACSTD2)在甲状腺乳头状癌(PTC)中的表达及临床意义。方法:采用免疫组化方法对109例甲状腺良恶性病变(甲状腺乳头状癌69例、结节性甲状腺肿组织40例、癌旁甲状腺组织69例)中MCM7和TACSTD2的表达进行检测。结果:MCM7在上述组织中的阳性表达率分别为97.1% (67/69)、65.0% (26/40)和15.94% (11/69),TACSTD2在上述组织的阳性表达率分别为98.55% (68/69)、60.0% (24/40)和17.39% (12/69)。两种蛋白在上述三种组织的阳性表达率差异均具有统计学意义(c2 = 94.5 P c2 = 93.6, P P P = 0.016, Objective: To investigate the expression and clinical significance of minosomal maintenance protein 7 (MCM7) and tumor-associated calcium signal transducer 2 (TACSTD2) in papillary thyroid carcinoma (PTC). Methods: Immunohistochemistry was used to detect the expression of MCM7 and TACSTD2 in 109 cases of benign and malignant thyroid lesions (69 cases of papillary thyroid carcinoma, 40 cases of nodular goiter and 69 cases of adjacent thyroid tissues). Results: The positive expression rates of MCM7 in the above tissues were 97.1% (67/69), 65.0% (26/40) and 15.94% (11/69), respectively. The positive expression rates of TACSTD2 in the above tissues were 98.55% (68/69), 60.0% (24/40) and 17.39% (12/69), respectively. The positive expression rates of the two proteins in the above three tissues were statistically significant (c2 = 94.5, P c2 = 93.6, P P P = 0.016, < 0.05). Conclusions: MCM7 and TACSTD2 are highly expressed in PTC tissues, and the positive expression of TACSTD2 is positively correlated with tumor diameter, which may be involved in the occurrence and development of PTC. Both of them may provide new molecular biological markers for the diagnosis of PTC.展开更多
为满足以体系对抗为特征的信息化、智能化空战的需求,世界各国不断推出新的空空导弹概念,美国空军“下一代空中主宰”(Next Generation Air Dominance,NGAD)项目设立了“空中主宰空对空武器”专项,为其下一代隐身战机开展新型导弹概念...为满足以体系对抗为特征的信息化、智能化空战的需求,世界各国不断推出新的空空导弹概念,美国空军“下一代空中主宰”(Next Generation Air Dominance,NGAD)项目设立了“空中主宰空对空武器”专项,为其下一代隐身战机开展新型导弹概念探索和集成研究,如AIM-260“联合先进战术导弹”(Joint Advanced Tactical Missile,JATM)、“模块化先进导弹”(Modular Advanced Missile,MAM)。同时,美国空军大力推进导弹数字工程,如启动了“一号武器”(Weapon ONE)等探路者项目,利用数字孪生技术快速增强武器作战能力,改进研发和采办流程。法国和英国在“导弹材料和组件创新技术合作”(Materials and Components for Missiles,Innovation and Technology Partnership,MCM ITP)和“复杂武器创新和技术合作”(Complex Weapon Innovation and Technology Partnership,CW ITP)计划下研发大量下一代导弹技术。俄罗斯、以色列、印度、日本也都在研制自己的新一代空空导弹。大量新技术的涌现促使空空导弹高速发展,新型空空导弹适应复杂作战环境的反隐身、抗干扰性能以及小型化、网络化、多用化、数字化、智能化水平不断提升。未来,空空导弹将以新的姿态被赋予新的使命,在空战体系中发挥更大的作用。展开更多
在风速传感器实测风速不确定度的评定中,传统方法是将实测风速测量模型简化后采用GUM(guide to the expression uncertainty in measurement)进行评定。但GUM并不适用于复杂模型,为了研究实测风速不确定度评定的可靠方法,对风速传感器...在风速传感器实测风速不确定度的评定中,传统方法是将实测风速测量模型简化后采用GUM(guide to the expression uncertainty in measurement)进行评定。但GUM并不适用于复杂模型,为了研究实测风速不确定度评定的可靠方法,对风速传感器分别采用GUM和MCM(Monte Carlo method)进行不确定度评定,对比分析评定结果,并利用MCM评定结果验证GUM的适用性。结果表明,简化模型下GUM和MCM评定结果差异较小,但只有标准不确定度取一位有效数字时,GUM评定方法通过验证,评定结果一致性好;实测模型下MCM和简化模型下GUM评定结果对比得到,两者包络形状相似,但实测风速最佳估计值明显偏大,GUM评定方法不能通过验证;改变部分输入量分布时,两种方法得到实测风速最佳估计值非常接近,但GUM评定得到包含区间比MCM明显增宽,概率分布相差较大,GUM评定方法不能通过验证。因此,应当根据模型的复杂程度、输入量分布情况以及测量结果准确度的要求选择合适的评定方法,如果输入量分布均服从正态分布且对测量准确度要求不高,可使用GUM进行评定,反之建议使用MCM评定以提高观测结果的准确性和可靠性。展开更多
文摘目的:研究微小染色体维持蛋白7 (MCM7)和肿瘤相关钙信号转导蛋白2 (TACSTD2)在甲状腺乳头状癌(PTC)中的表达及临床意义。方法:采用免疫组化方法对109例甲状腺良恶性病变(甲状腺乳头状癌69例、结节性甲状腺肿组织40例、癌旁甲状腺组织69例)中MCM7和TACSTD2的表达进行检测。结果:MCM7在上述组织中的阳性表达率分别为97.1% (67/69)、65.0% (26/40)和15.94% (11/69),TACSTD2在上述组织的阳性表达率分别为98.55% (68/69)、60.0% (24/40)和17.39% (12/69)。两种蛋白在上述三种组织的阳性表达率差异均具有统计学意义(c2 = 94.5 P c2 = 93.6, P P P = 0.016, Objective: To investigate the expression and clinical significance of minosomal maintenance protein 7 (MCM7) and tumor-associated calcium signal transducer 2 (TACSTD2) in papillary thyroid carcinoma (PTC). Methods: Immunohistochemistry was used to detect the expression of MCM7 and TACSTD2 in 109 cases of benign and malignant thyroid lesions (69 cases of papillary thyroid carcinoma, 40 cases of nodular goiter and 69 cases of adjacent thyroid tissues). Results: The positive expression rates of MCM7 in the above tissues were 97.1% (67/69), 65.0% (26/40) and 15.94% (11/69), respectively. The positive expression rates of TACSTD2 in the above tissues were 98.55% (68/69), 60.0% (24/40) and 17.39% (12/69), respectively. The positive expression rates of the two proteins in the above three tissues were statistically significant (c2 = 94.5, P c2 = 93.6, P P P = 0.016, < 0.05). Conclusions: MCM7 and TACSTD2 are highly expressed in PTC tissues, and the positive expression of TACSTD2 is positively correlated with tumor diameter, which may be involved in the occurrence and development of PTC. Both of them may provide new molecular biological markers for the diagnosis of PTC.
文摘为满足以体系对抗为特征的信息化、智能化空战的需求,世界各国不断推出新的空空导弹概念,美国空军“下一代空中主宰”(Next Generation Air Dominance,NGAD)项目设立了“空中主宰空对空武器”专项,为其下一代隐身战机开展新型导弹概念探索和集成研究,如AIM-260“联合先进战术导弹”(Joint Advanced Tactical Missile,JATM)、“模块化先进导弹”(Modular Advanced Missile,MAM)。同时,美国空军大力推进导弹数字工程,如启动了“一号武器”(Weapon ONE)等探路者项目,利用数字孪生技术快速增强武器作战能力,改进研发和采办流程。法国和英国在“导弹材料和组件创新技术合作”(Materials and Components for Missiles,Innovation and Technology Partnership,MCM ITP)和“复杂武器创新和技术合作”(Complex Weapon Innovation and Technology Partnership,CW ITP)计划下研发大量下一代导弹技术。俄罗斯、以色列、印度、日本也都在研制自己的新一代空空导弹。大量新技术的涌现促使空空导弹高速发展,新型空空导弹适应复杂作战环境的反隐身、抗干扰性能以及小型化、网络化、多用化、数字化、智能化水平不断提升。未来,空空导弹将以新的姿态被赋予新的使命,在空战体系中发挥更大的作用。
文摘在风速传感器实测风速不确定度的评定中,传统方法是将实测风速测量模型简化后采用GUM(guide to the expression uncertainty in measurement)进行评定。但GUM并不适用于复杂模型,为了研究实测风速不确定度评定的可靠方法,对风速传感器分别采用GUM和MCM(Monte Carlo method)进行不确定度评定,对比分析评定结果,并利用MCM评定结果验证GUM的适用性。结果表明,简化模型下GUM和MCM评定结果差异较小,但只有标准不确定度取一位有效数字时,GUM评定方法通过验证,评定结果一致性好;实测模型下MCM和简化模型下GUM评定结果对比得到,两者包络形状相似,但实测风速最佳估计值明显偏大,GUM评定方法不能通过验证;改变部分输入量分布时,两种方法得到实测风速最佳估计值非常接近,但GUM评定得到包含区间比MCM明显增宽,概率分布相差较大,GUM评定方法不能通过验证。因此,应当根据模型的复杂程度、输入量分布情况以及测量结果准确度的要求选择合适的评定方法,如果输入量分布均服从正态分布且对测量准确度要求不高,可使用GUM进行评定,反之建议使用MCM评定以提高观测结果的准确性和可靠性。