针药并用对早期2型糖尿病患者胰岛素抵抗指数的影响

目的观察针药并用对早期2型糖尿病患者血糖控制及胰岛素抵抗指数的影响。方法将100例早期2型糖尿病患者随机分为治疗组和对照组,每组50例。对照组采用糖尿病常规治疗,治疗组在对照组基础上采用针刺治疗。观察两组治疗前后中医证候积分、体质量指数(BMI)、腰臀比(WHR)、各项血糖和血脂指标[空腹血糖(FPG)、总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)]及各项胰岛素功能指标[空腹胰岛素(FINS)、胰岛β细胞功能指数(HOMA-β)、胰岛素抵抗指数(HOMA-IR)]的变化情况。结果两组治疗后中医证候积分、BMI、WHR、各项血糖和血脂指标及各项胰岛素功能指标与同组治疗前比较,差异均具有统计学意义(P<0.05)。治疗组治疗后中医证候积分、BMI、WHR、各项血糖和血脂指标及各项胰岛素功能指标与对照组比较,差异均具有统计学意义(P<0.05)。结论针药并用能够有效控制2型糖尿病患者的血糖、血脂水平,降低胰岛素抵抗,提高胰岛β细胞功能。

(EC+β^(+)) Decay of ^(128)Ce

The (EC+β^(+)) decay of ^(128)Ce was reinvestigated in the^(116)Sn (l6O, 4n) reaction by using a helium-jet tape transport system. The decay γ rays of ^(128)Ce were unambiguously described from those of ^(129)Ce after taking the comparing experiments of ^(16)O+^(116)Sn and ^(16)O+^(117)Sn. Based on x-γ and γ-γ coincidence measurements, a detailed (EC+β^(+)) decay scheme of ^(128)Ce has been proposed which modifies the previous one, and takes accounts of 100 observed γ-lines.

(EC+β+) Decay of ^(129)Ce

The nuclide ^(129)Ce was produced by a(^(16)O,4n)reaction on an enriched ^(117)Sn target.Reaction products were transported to a shielded location by using a helium-jet tape transport system.An activity of 4.1 min in chemically separated cerium sample was identified as ^(129)Ce.Based on x-γ-t andγ-γ-t coincidence measurements,the(EC+β+)decay scheme of ^(129)Ce was proposed,and takes accounts of 50 observedγ-lines.

“通信原理”教学中关于Nyquist第一准则证明的思考

通信原理课程是电子信息科学教学的基础课,是通信专业人员必备重要的知识结构。它包含了大量的高数、信号与系统、高频等理论知识,抽象的理论概念,复杂对公式运算,使学生学习起来相对困难。在实际教学过程中发现教材中无码间串扰的频域条件的Nyquist第一准则证明过程中存在问题,并提出了改进方法。同时,该文作者实际教学中采用了结合数字信号离散化的特点,在教学中应用了离散化的证明方法,避免了传统证明的繁琐步骤,让学生更易理解。