The interacting boson model of Arima, Iachello, and co-workers is applied to the even ruthenium isotopes, ^96 Ru -116Ru. Excitation energies, electromagnetic transition strengths, quadrupole and magnetic dipole moment...The interacting boson model of Arima, Iachello, and co-workers is applied to the even ruthenium isotopes, ^96 Ru -116Ru. Excitation energies, electromagnetic transition strengths, quadrupole and magnetic dipole moments, and △（E2/M1） mixing ratios have been described systematically. Mixed symmetry states are investigated. It is seen that the properties of low-lying levels in these isotopes, for which the comparison between experiment and theory is possible, can be satisfactorily characterized by the Interacting Boson Model-2.展开更多
目的 了解1990-2021年中国2型糖尿病疾病负担变化情况,预测2022-2030年发展趋势,为制定精准防控策略提供参考依据。方法 基于2021年全球疾病负担(Global Burden of Disease Study 2021,GBD 2021)数据,采用Joinpoint回归模型描述变化趋势...目的 了解1990-2021年中国2型糖尿病疾病负担变化情况,预测2022-2030年发展趋势,为制定精准防控策略提供参考依据。方法 基于2021年全球疾病负担(Global Burden of Disease Study 2021,GBD 2021)数据,采用Joinpoint回归模型描述变化趋势,运用自回归积分移动平均(autoregressive integrated moving average,ARIMA)模型进行预测。结果 1990-2021年中国2型糖尿病标化发病率、标化患病率和标化伤残调整寿命年率(age-standardized disability-adjusted life years rate,DALYs率)分别增长49.82%、72.04%和29.90%,所对应的AAPC是1.30、1.78和0.87(P<0.05);15~19岁年龄组的标化发病率和标化DALYs率涨幅最大,平均年度变化百分比(average annual percentage change,AAPC)为4.19和6.39,且男性涨幅均大于女性。ARIMA模型预测显示,标化发病率下降0.58%,标化患病率和标化DALYs率则分别上升18.18%和9.54%。结论 中国2型糖尿病的疾病负担日益加重,呈现阶段性特征,且具有显著的年龄和性别差异。应普及人群健康知识,关注重点人群,多部门协同合作,充分发挥基层医疗机构和家庭医生的作用,助力实现健康中国。展开更多
文摘The interacting boson model of Arima, Iachello, and co-workers is applied to the even ruthenium isotopes, ^96 Ru -116Ru. Excitation energies, electromagnetic transition strengths, quadrupole and magnetic dipole moments, and △（E2/M1） mixing ratios have been described systematically. Mixed symmetry states are investigated. It is seen that the properties of low-lying levels in these isotopes, for which the comparison between experiment and theory is possible, can be satisfactorily characterized by the Interacting Boson Model-2.
