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超声软指标NT与NF检测对胎儿21-三体综合征产前诊断的价值
孕早 中期 颈项透明层 超声软指标 产前诊断 21-三体综合征 颈后皮肤皱褶
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2020/12/2
探讨超声软指标(USM)颈项透明层(NT)、颈后皮肤皱褶(NF)在产前筛查21-三体综合征中的应用价值。方法 选取2015年7月至2017年8月在安康市妇幼保健院进行产前筛查的3 108例孕早、中期孕妇作为研究对象，通过USM筛查胎儿发生21-三体综合征的情况，以羊膜穿刺及羊水细胞染色体核型分析结果为金标准，通过四格表法计算NT、NF增厚对21-三体胎儿的诊断灵敏度、特异度。
Quark masses with Nf=2 twisted mass lattice QCD
Quark masses Nf=2 twisted mass lattice QCD
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2011/1/6
We present the results of the recent high precision lattice calculation of the average up/down, strange and charm quark masses performed by ETMC with Nf=2 twisted mass Wilson fermions. The analysis in...
Quark masses with Nf=2 twisted mass lattice QCD
Quark masses Nf=2 twisted mass lattice QCD
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2011/1/6
We present the results of the recent high precision lattice calculation of the average up/down, strange and charm quark masses performed by ETMC with Nf=2 twisted mass Wilson fermions. The analysis in...
Quark masses with Nf=2 twisted mass lattice QCD
Quark masses Nf=2 twisted mass lattice QCD
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2011/1/13
We present the results of the recent high precision lattice calculation of the average up/down,
strange and charm quarkmasses performed by ETMC with Nf =2 twisted massWilson fermions.
The analysis i...
Non-perturbative renormalization of quark mass in Nf=2+1 QCD with the Schroedinger functional scheme
Non-perturbative renormalization of quark mass Nf=2+1 QCD Schroedinger functional scheme
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2011/1/13
We present an evaluation of the quark mass renormalization factor for Nf = 2 + 1 QCD.The Schrödinger functional scheme is employed as the intermediate scheme to carry out onperturbative running f...
Non-perturbative renormalization of quark mass in Nf=2+1 QCD with the Schroedinger functional scheme
Non-perturbative renormalization quark mass in Nf=2+1 QCD
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2011/1/6
We present an evaluation of the quark mass renormalization factor for Nf=2+1 QCD. The Schroedinger functional scheme is employed as the intermediate scheme to carry out non-perturbative running from t...