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Epidemiology,clinical and laboratory characteristics of currently alive HIV-1 infected former blood donors naive to antiretroviral therapy in Anhui Province,China

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Chinese Medical Journal 2006年第23期119卷 1941-1948页

作者： XU jian-qing wang jian-jun HAN Li-feng XU Chen RUAN Yu-hua XU Zhen-hou CHEN Xi LIU Zhen-dong wang Jun SU Bing DING Xin-ping GAO Bing GU yong-bin CAO Xiao-yun XING Hui HONG Kun-xue PENG Hong zhao Quan-bi YUAN Lin FENG Yi ZHANG Gui-yun MA Li-ying WU Lan shao Yi-ming State Key Laboratory for Infectious Disease Prevention and Control National Center for MDS/STD Control and Prevention Chinese Center for Disease Control and Prevention Beijing 100050 China Reference Laboratory National Center for MDS/STD Control and Prevention Chinese Center for Disease Control and Prevention Beijing 100050 China Anhui Provincial Center for Disease Control and Prevention Hefei230000 China Fuyang Center for Disease Control and Prevention Fuyang 236000 China Yingzhou Center for Disease Control and Prevention Fuyang 236000 China Funan Center for Disease Control and Prevention Fuyang 236000 China

Background Unregulated commercial blood/plasma collection among farmers occurred between 1992 and 1995 in central China and caused the second major epidemic of human immunodeficiency virus type 1 （HIV-1） infection in China. It is important to characterize HIV-l-infected former blood donors and to study characteristics associated with disease progression for future clinical intervention and vaccine development. Methods A cross-sectional study was performed on HIV-l-infected former blood donors （FBDs） and age-matched HIV-seronegative local residents. Demographic, epidemiologic, clinical and key laboratory data were collected from all study participants. Both unadjusted and adjusted multivariate linear regressions were employed to analyze the association of the decrease of CD4^＋ T-cell counts with other characteristics. Results Two hundred and ninety-four HIV-l-infected FBDs and 59 age-matched HIV-seronegative local residents were enrolled in this study. The unregulated blood/plasma collection occurred more than a decade （10.8 --12.8 years） ago, which caused the rapid spread of HIV-1 infection and the high prevalence of co-infection with hepatitis C virus （HCV, 89.5%）, hepatitis B virus （HBV） co-infection was observed in only 11 HIV＋participants （3.7%）. Deterioration in both clinical manifestation and laboratory parameters and increase of viral loads were observed in parallel with the decrease of CD4^＋ T-cell counts. The decrease of total lymphocyte counts （P〈0.001） and hemoglobin levels （P〈0.001） and the appearance of dermatosis （P=0.03） were observed in parallel with the decrease of CD4^＋ T-cell counts whereas viral loads （P〈0.001） and CD8^＋ T-cell counts （P=0.01） were inversely associated with CD4^＋ T-cell counts.Conclusions Co-infection with HCV but not HBV is highly prevalent among HIV-l-infected FBDs. CD4^＋ T-cell counts is a reliable indicator for disease progression among FBDs. Total lymphocyte counts, hemoglobin level and appearance of dermatosis were po

关键词： human immunodeficiency virus blood donors disease progression co-infection hepatitis C

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梯度补偿法控温晶体的高功率绿光激光器

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中国激光 2007年第5期34卷 623-627页

作者：赵智亮朱健强陈立华王勇王宪涛崔俊文李永春中国科学院上海光学精密机械研究所高功率激光物理联合实验室中国工程物理研究院激光聚变研究中心四川绵阳621900

研究了平均功率超过30W的稳定高效全固态绿光激光器,分析得出影响全固态腔内倍频激光器倍频效率和输出稳定性的主要因素是倍频晶体局部温升造成的相位失配和热透镜效应,采用温度梯度补偿控温法对大尺寸倍频晶体进行温度控制,降低激光器... 详细信息

研究了平均功率超过30W的稳定高效全固态绿光激光器,分析得出影响全固态腔内倍频激光器倍频效率和输出稳定性的主要因素是倍频晶体局部温升造成的相位失配和热透镜效应,采用温度梯度补偿控温法对大尺寸倍频晶体进行温度控制,降低激光器工作中倍频晶体内外温度梯度从而有效地克服因晶体局部温升造成的倍频相位匹配角失配和热透镜效应。采用三条60W的半导体激光二极管阵列板条侧面抽运Nd:YAG激光增益介质棒,采用声光调Q,平凹直腔和腔内倍频结构配合温度梯度补偿控温法对大尺寸倍频晶体进行温度控制,得到了稳定高效的532nm绿光输出。在抽运电流25A,抽运功率174.6W时,得到了脉冲宽度110ns,重复频率10kHz,输出平均功率31.6W稳定高效的绿光输出,光-光转换效率为18.1%,功率稳定性为±0.66%,绿光输出光束质量因子M2=4.3。

关键词：激光技术 Nd∶YAG激光器倍频晶体梯度补偿控温腔内倍频 532nm绿光

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国外CL-20炸药技术发展分析

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火炸药学报 2022年第3期45卷 290-299页

作者：彭翠枝赵春柳毛长勇王林王建波邵玉玲柏席峰北方科技信息研究所北京100089 国家国防科技工业局军工项目审核中心北京100039 紫竹聚能创新中心北京100089 中国北方化学研究院集团有限公司北京100089

为把握CL-20炸药技术的发展态势,在系统跟踪国外技术文献的基础上,梳理总结了国外CL-20合成、后加工和CL-20基混合炸药等相关技术的发展脉络和技术进步,对CL-20炸药技术的发展趋势进行了分析。体现在:CL-20合成与制备技术取得创新发展,... 详细信息

为把握CL-20炸药技术的发展态势,在系统跟踪国外技术文献的基础上,梳理总结了国外CL-20合成、后加工和CL-20基混合炸药等相关技术的发展脉络和技术进步,对CL-20炸药技术的发展趋势进行了分析。体现在:CL-20合成与制备技术取得创新发展,高效绿色低成本新工艺技术已在实验室规模获得突破;CL-20高效后加工技术已达到实用性水平,部分先进转晶工艺已实现500g的批产规模,超细化处理的纳米级颗粒度已突破常规局限性;CL-20基混合炸药的配方不断丰富,但CL-20在炸药应用中存在溶解与晶变问题,仍待深入研究解决。指出未来应重点发展以小分子有机物为原料的CL-20合成新技术、高品质球形化CL-20晶体的制备技术以及CL-20在混合炸药制备中的抗溶解和防晶变技术研究等。

关键词：应用化学 CL-20 混合炸药

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甚高频等离子体增强化学气相沉积制备微晶硅太阳电池的研究

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物理学报 2005年第4期54卷 1899-1903页

作者：张晓丹赵颖高艳涛朱锋魏长春孙建王岩耿新华熊绍珍南开大学光电子薄膜器件与技术研究所天津300071 光电子薄膜器件与技术天津市重点实验室天津300071 南开大学光电信息技术科学教育部重点实验室天津300071

采用甚高频等离子体增强化学气相沉积技术成功地制备了不同硅烷浓度和辉光功率条件下的微晶硅电池 .电池的J V测试结果表明 :在实验的硅烷浓度和功率范围内 ,随硅烷浓度的降低和功率的加大 ,对应电池的开路电压逐渐变小 ;硅烷浓度的不... 详细信息

采用甚高频等离子体增强化学气相沉积技术成功地制备了不同硅烷浓度和辉光功率条件下的微晶硅电池 .电池的J V测试结果表明 :在实验的硅烷浓度和功率范围内 ,随硅烷浓度的降低和功率的加大 ,对应电池的开路电压逐渐变小 ;硅烷浓度的不同对电池的短路电流密度有很大的影响 ,但功率的影响在实验研究的范围内不是很显著 .对于微晶硅电池 ,N层最好是非晶硅 ,这是因为一方面可以降低对电流的横向收集效应 ,另一方面也降低了电池的漏电概率 ,提高了电池的填充因子 .

关键词：甚高频等离子体增强化学气相沉积微晶硅薄膜太阳电池硅烷浓度

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Prognostic significance of regional lymphadenectomy in T1b gallbladder cancer:Results from 24 hospitals in China

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World Journal of Gastrointestinal Surgery 2021年第2期13卷 176-186页

作者： Tai Ren yong-Sheng Li Xue-Yi Dang Yang Li Zi-Yu shao Run-Fa Bao Yi-Jun Shu Xu-An wang Wen-Guang Wu Xiang-Song Wu Mao-Lan Li Hong Cao Kun-hua wang Hong-Yu Cai Chong Jin Hui-Han Jin Bo Yang Xiao-Qing jiang jian-Feng Gu Yun-Fu Cui Zai-Yang Zhang chun-Fu Zhu Bei Sun Chao-Liu Dai Lin-Hui Zheng Jing-Yu Cao Zhe-Wei Fei Chang-Jun Liu Bing Li Jun Liu Ye-Ben Qian Yi wang Ya-Wei hua Xi Zhang Chang Liu Wan-Yee Lau Ying-Bin Liu Department of General Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Shanghai Key Laboratory of Biliary Tract Disease Research Shanghai 200092China Department of Biliary-Pancreatic Surgery Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China State Key Laboratory for Oncogenes and Related Genes Shanghai 200127China Department of General Surgery Shanxi Provincial Cancer HospitalTaiyuan 030013Shanxi ProvinceChina Department of GI Surgery China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina Department of Gastrointestinal and Hernia Surgery The First Affiliated Hospital of Kunming Medical UniversityKunming 650031Yunnan ProvinceChina Department of Hepatobiliary Surgery Nantong Tumor HospitalNantong 226361Jiangsu ProvinceChina Department of General Surgery Taizhou Municipal HospitalTaizhou 318000Jiangsu ProvinceChina Department of Hepatobiliary Surgery Wuxi Second People's HospitalWuxi 214002Jiangsu ProvinceChina Department of General Surgery The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325015Zhejiang ProvinceChina Department of Biliary Tract Surgery Second Military Medical UniversitySecondary Military Medical UniversityShanghai 200438China Department of General Surgery Changshu No.1 People’s Hospital Affiliated to Soochow UniversityChangshu 215500Jiangsu ProvinceChina Department of Hepatopancreatobiliary Surgery Second Affiliated Hospital of Harbin Medical UniversityHarbin 150086Heilongjiang ProvinceChina Department of General Surgery Shaoxing Second HospitalShaoxing 312000Zhejiang ProvinceChina Department of HPB Surgery Changzhou No.2 People’s HospitalChangzhou 213003Jiangsu ProvinceChina Department of Pancreatic and Biliary Surgery The First Affiliated Hospital of Harbin Medical UniversityHarbin 150009Heilongjiang ProvinceChina Department of Hepatobiliary Surgery Shengjing Hospital of China Medical UniversityShenyang 1

BACKGROUND Whether regional lymphadenectomy(RL)should be routinely performed in patients with T1b gallbladder cancer(GBC)remains a subject of *** To investigate whether RL can improve the prognosis of patients with T1b *** We studied a multicenter cohort of patients with T1b GBC who underwent surgery between 2008 and 2016 at 24 hospitals in 13 provinces in *** logrank test and Cox proportional hazards model were used to compare the overall survival(OS)of patients who underwent cholecystectomy(Ch)+RL and those who underwent Ch *** investigate whether combined hepatectomy(Hep)improved OS in T1b patients,we studied patients who underwent Ch+RL to compare the OS of patients who underwent combined Hep and patients who did *** Of the 121 patients(aged 61.9±10.1 years),77(63.6%)underwent Ch+RL,and 44(36.4%)underwent Ch ***(9.1%)patients in the Ch+RL group had lymph node *** 5-year OS rate was significantly higher in the Ch+RL group than in the Ch group(76.3%vs 56.8%,P=0.036).Multivariate analysis showed that Ch+RL was significantly associated with improved OS(hazard ratio:0.51;95%confidence interval:0.26-0.99).Among the 77 patients who underwent Ch+RL,no survival improvement was found in patients who underwent combined Hep(5-year OS rate:79.5%for combined Hep and 76.1%for no Hep;P=0.50).CONCLUSION T1b GBC patients who underwent Ch+RL had a better prognosis than those who underwent ***+Ch showed no improvement in prognosis in T1b GBC *** recommended by both the National Comprehensive Cancer Network and Chinese Medical Association guidelines,RL was only performed in 63.6%of T1b GBC *** Ch+RL should be advised in T1b GBC.

关键词： Gallbladder cancer Lymphadenectomy Hepatectomy Staging Prognosis Surgery

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Advances in nuclear detection and readout techniques

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Nuclear Science and Techniques 2023年第12期34卷 281-358页

作者： Rui He Xiao‑Yang Niu Yi wang Hong‑Wei Liang Hong‑Bang Liu Ye Tian Hong‑Lin Zhang Chao‑Jie Zou Zhi‑Yi Liu Yun‑Long Zhang Hai‑Bo Yang Ju huang Hong‑Kai wang Wei‑Jia Han Bei Cao Gang Chen Cong Dai Li‑Min Duan Rui‑Rui Fan Fang‑Fa Fu jian‑hua Guo Dong Han Wei jiang Xian‑Qin Li Xin Li Zhuo‑Dai Li Yu‑Tie Liang Shun Liao De‑Xu Lin Cheng‑Ming Liu Guo‑Rui Liu Jun‑Tao Liu Ze Long Meng‑Chen Niu Hao Qiu Hu Ran Xiang‑Ming Sun Bo‑Tan wang Jia wang Jin‑Xiang wang Qi‑Lin wang yong‑Sheng wang Xiao‑Chuan Xia Hao‑Qing Xie He‑Run Yang Hong Yin Hong Yuan chun‑Hui Zhang Rui‑Guang zhao Ran Zheng Cheng‑Xin zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China Key Laboratory of Particle and Radiation Imaging Department of Engineering PhysicsTsinghua UniversityBeijing 100084China School of Integrated Circuits Dalian University of TechnologyDalian 116020China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Electronic Engineering School Heilongjiang UniversityHarbin 150080China Spallation Neutron Source Science Center Dongguan 523803China Micro‑electronic Department Harbin Institute of TechnologyHarbin 150001China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210034China Liaoning Academy of Materials Shenyang 110167China Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly School of Mathematics and Physics Chengdu University of TechnologyChengdu 620035China PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China School of Computer Science Northwestern Polytechnical UniversityXi’an 710129China

“A Craftsman Must Sharpen His Tools to Do His Job,”said *** detection and readout techniques are the foundation of particle physics,nuclear physics,and particle astrophysics to reveal the nature of the ***,they are being increasingly used in other disciplines like nuclear power generation,life sciences,environmental sciences,medical sciences,*** article reviews the short history,recent development,and trend of nuclear detection and readout techniques,covering Semiconductor Detector,Gaseous Detector,Scintillation Detector,Cherenkov Detector,Transition Radiation Detector,and Readout *** explaining the principle and using examples,we hope to help the interested reader underst and this research field and bring exciting information to the community.

关键词： Silicon detector Wide bandgap detector Time projection chamber(TPC) Multigap resistive plate chamber detector(MRPC) Scintillation detector Calorimeters Cherenkov detector Transition radiation detector Artificial intelligence Trigger-less readout

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Disappearance of Superconductivity and a Concomitant Lifshitz Transition in Heavily Overdoped Bi_2Sr_2CuO_6 Superconductor Revealed by Angle-Resolved Photoemission Spectroscopy

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Chinese Physics Letters 2019年第1期36卷 60-64页

作者： Ying Ding Lin zhao Hong-Tao Yan Qiang Gao Jing Liu Cheng Hu jian-Wei huang Cong Li Yu Xu yong-Qing Cai Hong-Wao Rong Ding-Song Wu chun-Yao Song hua-Xue Zhou Xiao-Li Dong Guo-Dong Liu Qing-Yan wang Shen-Jin Zhang Zhi-Min wang Feng-Feng Zhang Feng Yang Qin-JunPeng Zu-Yan Xu Chuang-Tian Chen X.J.Zhou Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Technical Institute of Physics and Chemistry Chinese Academy of Sciences Collaborative Innovation Center of Quantum Matter

By partially doping Pb to effectively suppress the superstructure in single-layered cuprate Bi_2Sr_2CuO_(6+δ)(Pb-Bi2201) and annealing them in vacuum or in high pressure oxygen atmosphere, a series of high quality Pb-Bi2201 single crystals are obtained with T_c covering from 17 K to non-superconducting in the overdoped region. High resolution angle resolved photoemission spectroscopy measurements are carried out on these samples to investigate the evolution of the Fermi surface topology with doping in the normal state. Clear and complete Fermi surfaces are observed and quantitatively analyzed in all of these overdoped Pb-Bi2201 samples. A Lifshitz transition from holelike Fermi surface to electron-like Fermi surface with increasing doping is observed at a doping level of ~0.35. This transition coincides with the change that the sample undergoes superconducting-to-non-superconducting *** results reveal the emergence of an electron-like Fermi surface and the existence of a Lifshitz transition in heavily overdoped Bi2201 samples. This provides important information in understanding the connection between the disappearance of superconductivity and the Lifshitz transition in the overdoped region.

关键词： Angular resolved light emission spectrometry Concomitant Lifshitz Transition Bi2Sr2CuO6

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亚微米结构的可见光聚合全息制作

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物理学报 2002年第3期51卷 527-531页

作者：王霞许剑锋苏慧敏何拥军江绍基汪河洲曾兆华陈用烈中山大学超快速激光光谱学国家重点实验室广州510275 中山大学高分子研究所广州510275

报道用激光全息技术结合可见光光聚合制作周期结构的方法和物理机理 ;对多束激光相干产生的空间干涉光场进行了讨论 ;提供了一组激光束的偏振态的最佳组合 ,使激光全息技术制作理想的亚微米单晶结构更有效和快捷 .分析了曝光量与制作效... 详细信息

报道用激光全息技术结合可见光光聚合制作周期结构的方法和物理机理 ;对多束激光相干产生的空间干涉光场进行了讨论 ;提供了一组激光束的偏振态的最佳组合 ,使激光全息技术制作理想的亚微米单晶结构更有效和快捷 .分析了曝光量与制作效果的关系 ,此法可实现小球自排无法实现的大幅度占空比调节 .与紫外光光聚合相比 ,可见光光聚合可在监视下调节 ,操作方便安全 .

关键词：激光全息技术光学晶格光子晶体亚微米结构可见光光聚合周期结构空间干涉光场制作

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Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients

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Chinese Medical Journal 2013年第12期126卷 2276-2280页

作者： ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU jian XIE Ru-juan wang Li-ning NI zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying wang Li SHI Wei LIU jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin zhao Jiu-yang GU yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN jian-xin wang Nian-song LI Hai-ying XI chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan wang Rong ZHANG Jing-hong wang jian-qin LOU Tan-qi shao Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao Department of Nephrology State key Laboratory of Kidney Disease Chinese PLA General Hospital Beijing 100853 China Nephrology Institute of the Chinese People's Liberation Army Chinese People's Liberation Army Key Laboratory of Nephrology Beijing 100853 China Department of Nephrology West China Hospital of Sichuan University Chengdu Sichuan 610041 China Department of Nephrology First Affiliated Hospital School of Medicine Zhejiang University Hangzhou Zhejiang 310003 China Department of Nephrology Zhongshan Hospital Fudan University Shanghai 200032 China Department of Nephrology First Affiiated Hospital of Sun Yat-sen University Guangzhou Guangdong 510080 China Department of Nephrology First Affiliated Hospital of Dalian Medical University Dalian Liaoning 116011 China Department of Nephrology First Affiliated Hospital of Xinjiang Medical University Urumqi Xinjiang 830054 China Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang 150001 China Department of Nephrology First Afftiated Hospital of China Medical University Shenyang Liaoning 110001 China Department of Nephrology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200025 China Department of Nephrology Second Xiangya Hospital Central South University Changsha Hunan 410000 China Department of Nephrology First Affiliated Hospital of Medical College Xi'an Jiaotong University Xi'an Shaanxi 710061 China Department of Nephrology First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital) Nanjing Jiangsu 210029 China Department of Nephrology Sichuan Provincial People's Hospital Chengdu Sichuan 610072 China Department of Nephrology Guangdong Provincial People's Hospital Guangzhou Guangdong 510030 China Department of Nephrology Affliated Xiehe Hospital Tongji Medical College Huazhong Science and Technology University Wuhan Hubei 430022 China Department of Nephrology Daping Hospital Third Military Medi

Background Data on the epidemiology of hypertension in Chinese non-dialysis chronic kidney disease （CKD） patients are *** aim of the present study was to investigate the prevalence,awareness,treatment,and control of hypertension in the non-dialysis CKD patients through a nationwide,multicenter study in *** The survey was performed in 61 tertiary hospitals in 31 provinces,municipalities,and autonomous regions in China （except Hong Kong,Macao,and Taiwan）.Trained physicians collected demographic and clinical data and measured blood pressure （BP） using a standardized *** was defned as systolic BP ≥140 mmHg and/or diastolic BP ≥90 mmHg,and/or use of antihypertensive *** 〈140/90 mmHg and 〈130/80 mmHg were used as the 2 thresholds of hypertension *** multivariate logistic regression with adjustment for sex and age,we analyzed the association between CKD stages and uncontrolled hypertension in non-dialysis CKD *** The analysis included 8927 non-dialysis CKD *** prevalence,awareness,and treatment of hypertension in non-dialysis CKD patients were 67.3%,85.8%,and 81.0%,*** hypertensive CKD patients,33.1% and 14.1% had controlled BP to 〈140/90 mmHg and 〈130/80 mmHg,*** successive CKD stages,the prevalence of hypertension in non-dialysis CKD patients increased,but the control of hypertension decreased （P〈0.001）.When the threshold of BP 〈130/80 mmHg was considered,the risk of uncontrolled hypertension in CKD 2,3a,3b,4,and 5 stages increased 1.3,1.4,1.4,2.5,and 4.0 times compared with CKD 1 stage,respectively （P〈0.05）.Using the threshold of 〈140/90 mmHg,the risk of uncontrolled hypertension increased in advanced stages （P〈0.05）.Conclusions The prevalence of hypertension Chinese non-dialysis CKD patients was high,and the hypertension control was *** successive CKD stages,the risk of uncontrolled hypertension increased.

关键词： non-dialysis chronic kidney disease chronic kidney disease stages hypertension epidemiology

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鲜枣贮藏过程中维生素C含量变化规律的研究

引用

华北农学报 2000年第4期15卷 112-115页

作者：王永勤李建华赵猛冯津王春生山西省农业科学院农产品贮藏保鲜研究所

鲜枣贮藏过程中维生素C含量先下降 ,后略上升又下降 ;不同品种、不同成熟度、不同采后处理方法 ,对贮藏过程中维生素C含量变化规律的影响不同 ,速冻和热处理对VC 有破坏作用。脆果率高、贮藏效果好的处理维生素C含量也高 ,因此鲜枣贮藏... 详细信息

鲜枣贮藏过程中维生素C含量先下降 ,后略上升又下降 ;不同品种、不同成熟度、不同采后处理方法 ,对贮藏过程中维生素C含量变化规律的影响不同 ,速冻和热处理对VC 有破坏作用。脆果率高、贮藏效果好的处理维生素C含量也高 ,因此鲜枣贮藏过程中脆果率的高低可作为维生素C保存效果的指标。

关键词：鲜枣贮藏维生素C 含量变化营养成分

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