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| 1 | Impact of immunization programs on 11 childhood vaccine-preventable diseases in China: 1950–2018显示文摘To evaluate the achievements of China’s immunization program between 1950 and 2018,we chose 11 vaccine-preventable diseases(VPDs)as representative notifiable diseases and used annual surveillance data obtained between 1950 and 2018 to derive disease incidence and mortality trends.Quasi-Poisson and polynomial regression models were used to estimate the impacts of specific vaccine programs,and life-table methods were used to calculate the loss of life expectancy,years of life lost,and loss of working years.The total notification number for the 11 VPDs was 211,866,000 from 1950 to 2018.The greatest number occurred in 1959,with a total incidence of 1,723 per million persons.From 1978 to 2018,a substantial decline was observed in the incidence of major infectious diseases.The incidence of pertussis fell 98%from 126.35 to 1.58 per million,and the incidences of measles,meningococcal meningitis,and Japanese encephalitis fell 99%,99%,and 98%,respectively.The regression models showed that most of the 11 diseases exhibited dramatic declines in morbidity after their integration into the Expanded Program on Immunization(EPI),while varicella and paratyphoid fever,which were not integrated into the EPI,showed increased morbidity.From 1978 to 2018,the total life expectancy for the 11 VPDs increased by 0.79 years,and similar results were obtained for different age groups.China has had great success in controlling VPDs in recent decades,and improving vaccination coverage is a key aspect of controlling VPDs in China. | Jinhua Pan Yesheng Wang Lingsheng Cao Ying Wang Qi Zhao Shenglan Tang Wenfeng Gong Lei Guo Zhixi Liu Zexuan Wen Bo Zheng Weibing Wang | 2021 | The Innovation2021，2，2： | 2 |
| 2 | Po- larization-independent Fabry - Perot interferometer in a hole-type silicon photonic crystal显示文摘 | Chen Xiyao Zhao Deyin Qiang Zexuan | 2010 | Applied Optics2010，49，30： | 1 |
| 3 | Po- larization beam splitter based on photonie crystal selb collimation Mach- Zehnder iaterferometer显示文摘 | Chen Xiyao Qiang Zexuan Zhao Deyin | 2011 | Op- tics Communications2011，284，1： | 1 |
| 4 | Po- larization-independent drop filters based on photonic crystal self-collimation ring resonators 显示文摘 | Chen Xiyao Qiang Zexuan Zhao Deyin | 2009 | Optics express2009，17，19： | 1 |
| 5 | Polarization-independent drop filter based on photonic crystal self-collimation ring resonators 显示文摘 | Chen Xiyao Qiang Zexuan Zhao Deyin | 2009 | Optics Express2009，17，19： | 1 |
| 6 | Mechanical properties and strengthening mechanism of silty sands stabilized with steel slag-based geopolymer binder显示文摘Geopolymer binder has the advantages of early strength,fast solidification,high volume stability,and low permeability.It is beneficial to improve the mechanical performance of silty sands,saving cement consumption and being environmentally friendly.However,the strength improvement of silty sand stabilized with steel slag-based geopolymer was significantly controlled by their material composition and technical parameters.This study conducted a series of unconfined compression tests to investigate the material composition of steel slag-based geopolymer binders and their reasonable mixing ratio for silty sand stabilization.The optimum mixing ratio of precursor(steel slag)to alkaline activator(the combination of Na2SiO3 and CaO)and the optimum dosage of steel slag-based geopolymer for silty sand stabilization were explored.The strengthening mechanism of geopolymer-stabilized silty sands was discussed based on microstructural images and elemental concentrations of primary components observed by SEM and EDS.The results show that when the mass ratio of steel slag:Na2SiO3:CaO was 80:35:21,and the steel slag-based geopolymer material was 15%,the silty sand could achieve the best mechanical performance improvement.The microstructural characteristics of geopolymer-stabilized silty sands at different curing ages illustrated that the compactness and integrity of silty sand structures were enhanced over the curing age.The improving cementitious contact among particles and enlarging particle size was responsible for the strength improvement of silty sand.This research can provide a reference for applying steel slag-based geopolymer in silty sand stabilization in engineering practices. | Shengnian Wang Zewei Chen Zhijian Wu Leilei Gu Jun Su Zexuan Zhao | 2022 | Emergency Management Science and Technology2022，2，1： | 0 |
| 7 | 在成纤维细胞中通过一个化学小分子诱导的类XEN状态实现直接重编程显示文摘文章简介直接谱系重编程已经成为了一种具备应用前景的制备目的细胞类型的新方法。在通过化学小分子将小鼠成纤维细胞诱导为多能干细胞形成的过程中。 | Xiang Li Defang Liu Yantao Ma Xiaomin Du Junzhan Jing Lipeng Wang Bingqing Xie Da Sun Shaoqiang Sun Xueqin Jin Xu Zhang Ting Zhao Jingyang Guan Zexuan Yi Weifeng Lai Ping Zheng Zhuo Huang Yanzhong Chang 柴真 Jun Xu 邓宏魁 | 2018 | 科学新闻2018，0，4： | 0 |
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