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Vaccinate with Confidence and Finish Strong

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China CDC weekly 2022年第37期4卷 828-831页

作者： Lance Rodewald Dan Wu Zundong Yin zijian feng National Immunization Program Chinese Center for Disease Control and PreventionBeijingChina Chinese Center for Disease Control and Prevention BeijingChina Chinese Preventive Medicine Association BeijingChina

China’s sustained containment of the coronavirus disease 2019(COVID-19)epidemic has spared over 99%of the mainland of China’s 1.4 billion people from exposure to and infection with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and its variants for an astonishing two and a half *** the whole-of-government,whole-of-society containment effort has its own socioeconomic costs,the now-called dynamic COVID-zero strategy purchased a rare commodity—tranquil time with relatively little suffering and death from COVID-19 to develop and deploy tools for escaping the pandemic:diagnostics,vaccines,antivirals,and knowledge(1).

关键词： Confidence sustained acute

Attitudes Regarding Influenza Vaccination Among Public Health Workers during COVID-19 Pandemic — China, September 2022

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China CDC weekly 2023年第6期5卷 137-142页

作者： Heya Yi Yanlin Cao Jiemi Zhao Binshan Jiang Congxuan Bing zijian feng Weizhong Yang Jiandong Zheng Luzhao feng Chinese Preventive Medicine Association BeijingChina Chinese Academy of Medical Sciences Peking Union Medical CollegeBeijingChina Division of Infectious Disease Chinese Center for Disease Control and PreventionBeijingChina

Summary What is already known about this topic?Public health workers(PHWs)were listed as a priority group recommended for influenza vaccination during the coronavirus disease 2019(COVID-19)*** the drivers of influenza... 详细信息

关键词： vaccine vaccination listed

血清学检测在识别新型冠状病毒感染和重复感染中的应用

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中国疫苗和免疫 2024年第2期30卷 252-257页

作者：郭旭程祖瑶高艺轩宋渝丹李军宏王亚敏郑徽马超冯子健传染病溯源预警与智能决策全国重点实验室中国疾病预防控制中心北京102206 中国疾病预防控制中心免疫规划中心北京100050 国家卫生健康委医学病毒和病毒病重点实验室中国疾病预防控制中心病毒病预防控制所北京102206 中华预防医学会北京100062

新型冠状病毒已感染了全世界绝大多数人。新型冠状病毒感染的无症状比例较高,无症状者往往不就医,因而目前基于流感样病例的疾病监测和流行病学研究往往低估新型冠状病毒感染率。核酸检测和抗原检测用于识别近期的新型冠状病毒感染,且... 详细信息

新型冠状病毒已感染了全世界绝大多数人。新型冠状病毒感染的无症状比例较高,无症状者往往不就医,因而目前基于流感样病例的疾病监测和流行病学研究往往低估新型冠状病毒感染率。核酸检测和抗原检测用于识别近期的新型冠状病毒感染,且由于灵敏度的限制可能发生漏诊。血清学检测在流行病学研究中常用于识别新型冠状病毒感染和重复感染,但尚无公认的检测方法和判断标准。本文总结了目前真实世界研究中常用于判断新型冠状病毒感染和重复感染的方法,为未来有关研究设计和实施提供依据。

关键词：新型冠状病毒血清学检测自然感染重复感染

鄂尔多斯活动地块边界带第四纪晚期构造活动特征及强震孕育机制

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地质力学学报 2024年第2期30卷 206-224页

作者：郑文俊孙鑫雷启云龚志康王银刘兴旺李传友冯子鉴中山大学地球科学与工程学院广东珠海519082 广东省地球动力作用与地质灾害重点实验室广东珠海519082 南方海洋科学与工程广东省实验室(珠海) 广东珠海519082 宁夏回族自治区地震局宁夏银川750001 甘肃省地震局甘肃兰州730000 中国地震局地质研究所北京100029 地震动力学国家重点实验室北京100029

鄂尔多斯地块是位于中国内地中心位置的典型活动地块,由于受西南部青藏地块和东部太平洋板块远程作用的影响,地块各边界带构造活动特征和变形具有明显的特殊性和差异性。文章总结了多年来围绕鄂尔多斯活动地块周缘边界带开展的活动断裂... 详细信息

鄂尔多斯地块是位于中国内地中心位置的典型活动地块,由于受西南部青藏地块和东部太平洋板块远程作用的影响,地块各边界带构造活动特征和变形具有明显的特殊性和差异性。文章总结了多年来围绕鄂尔多斯活动地块周缘边界带开展的活动断裂定量、地震孕育机制及活动特征等的已有研究结果,对地块周缘断裂活动特征及强震孕育机制进行系统总结。鄂尔多斯活动地块不同边界带断裂第四纪晚期活动特征的不同是强震孕育环境差异的最直接的证据。鄂尔多斯活动地块西边界构造变形样式复杂,受青藏高原向北东挤压扩展的影响,西边界南段断裂以走滑、逆走滑和逆冲为主要特征。而向北到西边界北段,以右旋走滑为主要特征;以青藏高原最新扩展前缘的三关口-牛首山断裂为界,北部的银川盆地表现为典型的断陷盆地,边界断裂有右旋走滑特征,地震活动多以正走滑型为主。北边界的河套盆地以北侧的正断层为其控盆构造,历史和古地震多集中在北侧边界断裂上。南边界的渭河盆地构造特征相对较为复杂,由两组正断层组成,历史大地震多发生在盆地南缘,盆地中北部有中强地震发生。东边界的山西地堑系由多个裂谷型盆地斜列组成,历史大地震表现为南强北弱,北部盆地受张-渤构造带的影响,盆地走向和断层运动性质均发生了明显变化,多具备发生7级左右地震的构造条件。综合认为,断裂活动特征典型的鄂尔多斯活动地块周缘各边界带,未来强震多发生在大地震离逝时间长的地震空区/空段,或是构造带的转换和交汇区。

关键词：活动构造强震孕震机制活动地块边界带鄂尔多斯

基于个体层面的流感疫苗接种行为的理论模型概述

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中华流行病学杂志 2024年第4期45卷 608-614页

作者：曲凯苗雨露范思萌刘言哲杨孝坤赵宏婷秦颖郑建东张彦平彭质斌冯子健中国疾病预防控制中心传染病管理处北京102206 中华预防医学会北京100021

流感每年给社会和个人带来了显著的疾病负担,而流感疫苗接种被认为是预防流感、减少流感相关重症和死亡重要的公共卫生措施。我国流感疫苗接种率较低,部分原因是某些因素影响民众个体的接种意愿和行为,对这些因素进行科学研究和开展针... 详细信息

流感每年给社会和个人带来了显著的疾病负担,而流感疫苗接种被认为是预防流感、减少流感相关重症和死亡重要的公共卫生措施。我国流感疫苗接种率较低,部分原因是某些因素影响民众个体的接种意愿和行为,对这些因素进行科学研究和开展针对性干预,可有效改善接种情况。在流感疫苗接种行为方面常用的个人层面理论模型有健康信念模型、保护动机理论和计划行为理论等,本文综述了流感疫苗接种意愿和行为研究中常用的理论模型,并对模型实际应用情况及面临的挑战进行总结,为我国相关研究和干预项目设计提供参考。

关键词：流感疫苗理论模型接种行为接种意愿影响因素

Effects of deformation temperatures on microstructures,aging behaviors and mechanical properties of Mg-Gd-Er-Zr alloys fabricated by hard-plate rolling

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Journal of Magnesium and Alloys 2024年第6期12卷 2345-2359页

作者： Ke Liu Dalong Hu feng Lou zijian Yu Shubo Li Xian Du Wenbo Du Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China

In this investigation,a high-strength Mg-12Gd-1.0Er-0.5Zr(wt.%)alloy sheet was produced by hot extrusion(HE)and subsequent hard-plate rolling(HPR)at different *** results indicate that the microstructures of these final-rolled sheets are inhomogeneous,mainly including coarse deformed grains and dynamic recrystallized(DRXed)grains,and the volume fraction of these coarse deformed grains increases as the rolling temperature ***,more DRXed grains can be found in R-385℃sheet,resulting in a smaller average grain size and weaker basal texture,while the biggest grains and the highest strong basal texture are present in R-450℃*** of dynamic precipitation ofβphases which are mainly determined by the rolling temperature are present in these sheets,and its precipitation can consume the content of Gd solutes in the *** a result,the lowest number density ofβphase in R-450℃sheet is beneficial to modify the age hardening ***,the R-450℃sheet displays the best age hardening response because of a severe traditional precipitation ofβ’(more)andβH/βM(less)precipitates,resulting in a sharp improvement in strength,*** tensile strength(UTS)of∼518±17 MPa and yield strength(YS)of∼438±18 ***,the elongation(EL)of this sheet reduces greatly,and its value is∼2.7±0.3%.By contrasting,the EL of the peak-aging R-385℃sheet keeps better,changing from∼4.9±1.2%to∼4.8±1.4%due to a novel dislocation-induced chain-like precipitate which is helpful to keep good balance between strength and ductility.

关键词： Mg-Gd-Er-Zr sheets Age hardening response Precipitates Mechanical properties

Plasma-assisted aerogel interface engineering enables uniform Zn^(2+)flux and fast desolvation kinetics toward zinc metal batteries

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Journal of Energy Chemistry 2024年第8期95卷 29-38,I0002页

作者： zijian Xu Zhenhai Shi Zhan Chang Fan feng Zhuanyi Liu Dongkun Chu Jianguo Ren Zi-feng Ma Suli Chen Tianxi Liu Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan UniversityWuxi 214122JiangsuChina Shanghai Electrochemical Energy Devices Research Center Department of Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China BTR New Material Group Co. LTD.Shenzhen 518000GuangdongChina

The poor reversibility of Zn anodes induced by dendrite growth,surface passivation,and corrosion,severely hinders the practical applicability of Zn metal *** address these issues,a plasmaassisted aerogel(PAG)interface engineering was proposed as efficient ion transport modulator that can simultaneously regulate uniform Zn^(2+)flux and desolvation behavior during battery *** PAG with ordered mesopores acted as an ion sieve to homogenize Zn deposition and accelerate Zn^(2+)flux,which is favorable for corrosion resistance and dendrite ***,the plasma-assisted aerogel with abundant hydrophilic groups can facilitate the desolvation kinetics of Zn^(2+)due to the multiple hydrogen-bonding interaction with the activated water molecules,thus accelerating the Zn^(2+)migration ***,the Zn/Zn cell assembled with PAG-modified separator demonstrates stable plating and stripping behavior(over 1400 h at 1 mA cm^(-2))and high Coulombic efficiency(99.8%at1 mA cm^(-2)after 1100 cycles),and the Zn‖MnO_(2)full cell shows excellent long-term cycling stability and maintains a high capacity of 154.9 mA h g^(-1)after 1000 cycles at 1 A g^(-1).This study provides a feasible approach for the large-scale fabrication of aerogel functionalized separators to realize ultra-stable Zn metal batteries.

关键词： Zn metal batteries Aerogel interface Plasma Zn^(2+)migration kinetics Dendrite growth

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我国社会组织对MSM动员检测效果分析

中国艾滋病性病 2024年第5期30卷 503-507页

作者：金军怡李锦峰戴淑玉杨伟华郑雯琳桑健郑大澳王晓春沙莎冯子健中华预防医学会北京100062 中国疾病预防控制中心北京102206

目的分析2016-2022年我国参与艾滋病防治的社会组织MSM干预检测的成效与不足,为提升社会组织工作质量和能力提供参考。方法整理分析2016-2022年社会组织参与艾滋病防治基金(CAFNGO)项目管理信息系统中MSM干预项目数据,针对历年不同类型... 详细信息

目的分析2016-2022年我国参与艾滋病防治的社会组织MSM干预检测的成效与不足,为提升社会组织工作质量和能力提供参考。方法整理分析2016-2022年社会组织参与艾滋病防治基金(CAFNGO)项目管理信息系统中MSM干预项目数据,针对历年不同类型社会组织、不同地区MSM干预检测转化,HIV初筛阳性,HIV确证检测,HIV确证阳性和HIV确证阳性转介指标等产出进行分析。结果2016-2022年,全国共有567个社会组织参与CAFNGO MSM干预项目,其中民政部门登记的社会组织(NGO)159个,未在民政登记的社会组织(CBO)408个,覆盖了全国30个省(自治区、直辖市)。MSM干预项目的HIV初筛阳性率从2016年的5.49%到下降至2022年3.18%,而阳性转介治疗率从2017年的83.87%上升至2022年的94.93%。CBO项目的干预检测转化率、初筛阳性率和确证阳性率高于NGO的项目(P<0.05),NGO项目的确证检测率和阳性转介率均高于CBO项目(P<0.05)。华东、华北和东北检测人数较多,占项目检测总人数的64.80%(1089966/1681977),西北地区检测人数最少,占5.63%(94736/1681977)。西北地区项目的初筛阳性率为3.19%(3025/94736)、确证检测率76.96%(2328/3025)、确证阳性率2.36%(2236/94736),均低于平均水平(P<0.05)。结论社会组织通过动员干预检测工作,更多的阳性病例被发现,减少进一步的传播,发挥了其优势和作用,应继续加强对社会组织开展MSM干预工作的支持力度,在初筛阳性到确证检测的环节中,应减少脱失人数。NGO和CBO在防艾工作中发挥了各自的优势,需要加强对CBO的能力建设。在艾滋病疫情重点地区,有针对性地对不同类型社会组织提供技术支持和加强能力建设,推动社会组织均衡发展。

关键词：艾滋病男男性行为者社会组织检测

External quality assessment of the detection of rickettsioses in China

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Asian Pacific Journal of Tropical Medicine 2010年第11期3卷 851-854页

作者： Lijuan Zhang Daxin Ni zijian feng Department of Rickettsiology National Institute of Communicable Disease Control and PreventionChina CDC Chinese Centers for Diseases Prevention and Control

Objective:To report a training course on the laboratory diagnoses of rickettsioses that 10 provincial/city CDCs participated in laboratory external quality assurance(EQA) based on the serological specific antibodies detection and rapid PCR amplifying targeted genes of rickettsiae. Methods:An EQA program to evaluate the following laboratory procedures was developed to detect rickettsiae:(1) immunofluorescent assay(IFA) to detect specific antibodies of A. phagocytophilum,*** and *** respectively.(2) Two sets of nested PCR were used amplifying groEL genes for most members of the family Rickettsiaceae and amplifying 16SrRNA genes for the most members of family anaplasmae,respectively.A scoring scheme based on the distribution of the median antibody titer values of the serologic assays was designed and a ranking list of the scores of the PCR results based on the detected minimal copy numbers of reference DNA was ***:Among nine laboratories who reported the results on time,eight laboratories gave acceptable serologic results,the other one provided an unacceptable antibody titer(1:2 vs median 1:64) results for *** limits of detection(LOD) for the PCR amplifying for five references DNA ranged from 1copy/μL to 10~6 copy/μ***:We successfully trained and popularized modern diagnostic methods of rickettsiae in 10 provincial CDCs in China and first conducted the EQA projects and evaluated the results.

关键词： Rickettsiae Rickettsiosis EQA China