Accurate isotope shift factors of the 2s2p^（3,1）P_1~o–2s^2 ~1S_0 transitions in B II, obtained with the multi-configuration Dirac–Hartree–Fock and the relativistic configuration interaction methods, are reported....Accurate isotope shift factors of the 2s2p^（3,1）P_1~o–2s^2 ~1S_0 transitions in B II, obtained with the multi-configuration Dirac–Hartree–Fock and the relativistic configuration interaction methods, are reported. We found a linear correlation relation between the mass shift factors and the energies for the transitions concerned, considering all-order electron correlations. This relation is important for estimating the uncertainty in the calculation of isotope shift factors. These atomic data can be used to extract the nuclear mean-square charge radii of the boron isotopes with halo structures or to resolve the high precise spectroscopy of B II in astronomical observation.展开更多
为探讨中药复方多糖(compound Chinese herbal medicine polysaccharides,cCHMPS)对不同MHC B-LβⅡ基因型鸡免疫调节作用的影响,采用PCR-SSCP方法将200羽白羽肉鸡按不同MHC B-LβⅡ基因型分组,采集不同MHC B-LβⅡ基因型鸡的外周血淋...为探讨中药复方多糖(compound Chinese herbal medicine polysaccharides,cCHMPS)对不同MHC B-LβⅡ基因型鸡免疫调节作用的影响,采用PCR-SSCP方法将200羽白羽肉鸡按不同MHC B-LβⅡ基因型分组,采集不同MHC B-LβⅡ基因型鸡的外周血淋巴细胞,分别加入终剂量为100、75、50、0μg/mL的cCHMPS,共培养24h,采用实时荧光定量PCR方法检测cCHMPS对鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA表达量的影响。结果显示:与对照组相比,cCHMPS能显著增强不同MHC B-LβⅡ基因型鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA的表达量(P<0.05)。并且同一基因型鸡中,当cCHMPS剂量为50μg/mL时,AB、AA基因型鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA表达量显著高于其他剂量组(P<0.05);AC基因型鸡淋巴细胞NF-κB、IL-6mRNA的表达量显著高于其他剂量组(P<0.05);AC基因型鸡淋巴细胞TNF-αmRNA的表达量在cCHMPS为100μg/mL时显著高于其他剂量组(P<0.05)。综上所述,cCHMPS能不同程度的促进各MHC B-LβⅡ基因型鸡NF-κB、TNF-α、IL-6mRNA的表达,且不同MHC B-LβⅡ基因型鸡淋巴细胞最适中药复方多糖免疫调节剂量不同。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.91436103,11404025,and 91536106)the Research Program of National University of Defense Technology,China(Grant No.JC15-0203)the China Postdoctoral Science Foundation(Grant No.2014M560061)
文摘Accurate isotope shift factors of the 2s2p^（3,1）P_1~o–2s^2 ~1S_0 transitions in B II, obtained with the multi-configuration Dirac–Hartree–Fock and the relativistic configuration interaction methods, are reported. We found a linear correlation relation between the mass shift factors and the energies for the transitions concerned, considering all-order electron correlations. This relation is important for estimating the uncertainty in the calculation of isotope shift factors. These atomic data can be used to extract the nuclear mean-square charge radii of the boron isotopes with halo structures or to resolve the high precise spectroscopy of B II in astronomical observation.
