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Effect of Preoperative Double-J Ureteral Stenting before Flexible Ureterorenoscopy on Stone-free Rates and Complications

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Current Medical Science 2021年第1期41卷 140-144页

作者： pei-de BAI Tao WANG hai-chao huang Zhun wu Xue-gang WANG Jia-xuan QIN Hui-qiang WANG Bin chen Meng-bo HU Jin-chun XING The Key Laboratory of Urinary Tract Tumors and Calculi Department of Urology SurgeryThe First Affiliated Hospital of Xiamen UniversityXiamen361003China Department of Urology Huashan HospitalFudan UniversityShanghai200000China

The effect of preoperative Double-J(DJ)ureteral stenting before flexible ureterorenoscopy(FURS)in the treatment for urinary stones was *** retrospectively enrolled 306 consecutive patients who underwent FURS from Jan.2014 to *** the patients were classified into two groups according to whether they had DJ ureteral stenting before *** characteristics(age,sex,stone location,stone size,surgical success rate,operation time,stone-free rate of the first day after surgery,stone-free rate of the first month after surgery,total complication rate)were compared using Chi-square test for categorical variables and Kruskal-Wallis test for continuous *** total,306 patients were included in this *** group of DJ stenting before FURS included 203(66.3%)patients,and non-DJ stenting before FURS was observed in 103(33.7%)*** group of DJ stenting before FURS was significantly associated with a shorter operation time(53.8 vs.59.3 min,P<0.001),a higher stone-free rate of the first day after surgery(69.0%vs.51.5%,P=0.003).However,statistical significant differences were not found in the age,sex,stone location,stone size,surgical success rate,stone-free rate of the first month after surgery(89.2%vs.81.6%,P=0.065)and total complication rate(5.4%vs.9.7%,P=0.161)between the two *** DJ ureteral stenting before FURS could reduce the operation time and increase stone-free rate of the first day after ***,it might not benefit the stone-free rate of the first month after surgery and reduce the complication *** DJ stenting should be not routinely performed.

关键词： Double-J ureteral stenting flexible ureterorenoscopy stone-free rate complication rate

Prevalence and clinical characteristics of autoimmune liver disease in hospitalized patients with cirrhosis and acute decompensation in China

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World Journal of Gastroenterology 2022年第31期28卷 4417-4430页

作者： Zi-xuan Shen Dan-Dan wu Jie Xia Xian-Bo Wang Xin Zheng yan huang Bei-Ling Li Zhong-Ji Meng yan-Hang Gao Zhi-Ping Qian Feng Liu Xiao-Bo Lu Jia Shang Hua-Dong yan Yu-Bao Zheng Wen-Yi Gu yan Zhang Jian-Yi Wei Wen-Ting Tan Yi-Xin Hou Qun Zhang yan xiong Cong-Cong Zou Jun chen Ze-Bing huang Xiu-Hua Jiang Sen Luo Yuan-Yuan chen Na Gao chun-yan Liu Wei Yuan Xue Mei Jing Li Tao Li Xin-Yi Zhou Guo-Hong Deng Jin-Jun chen xiong Ma hai Li Department of Gastroenterology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Shanghai Institute of Digestive Disease Key Laboratory of Gastroenterology and HepatologyChinese Ministry of HealthShanghai Jiao Tong UniversityShanghai 200001China Department of Infectious Diseases Southwest HospitalThe Third Military Medical University(Army Medical University)Chongqing 400038China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100102China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 410008Hunan ProvinceChina Hepatology Unit Department of Infectious DiseasesNanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Infectious Disease Taihe HospitalHubei University of MedicineShiyan 430418Hubei ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130031Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 201508China Tianjin Institute of Hepatology Nankai University Second People’s HospitalTianjin 300102China Department of Infectious Diseases and Hepatology The Second Hospital of Shandong UniversityJinan 250033Shandong ProvinceChina Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054XinjiangChina Department of Infectious Diseases Henan Provincial People’s HospitalZhengzhou 450003Henan ProvinceChina Department of Infectious Diseases Hwamei HospitalThe Second Hospital of NingboUniversity of Chinese Academy of SciencesNingbo 315153Zhejiang ProvinceChina Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 5

BACKGROUND Autoimmune liver disease(AILD)has been considered a relatively uncommon disease in China,epidemiological data for AILD in patients with cirrhosis and acute decompensation(AD)is *** To investigate the prevalence,outcome and risk factors for AILD in cirrhotic patients complicated with AD in *** We collected data from patients with cirrhosis and AD from two prospective,multicenter cohorts in hepatitis B virus endemic *** were regularly followed up at the end of 28-d,90-d and 365-d,or until death or liver transplantation(LT).The primary outcome in this study was 90-d LTfree ***-on-chronic liver failure(ACLF)was assessed on admission and during 28-d hospitalization,according to the diagnostic criteria of the European Association for the Study of the Liver(EASL).Risk factors for death were analyzed with logistic regression *** In patients with cirrhosis and AD,the overall prevalence of AILD was 9.3%(242/2597).Prevalence of ACLF was significantly lower in AILD cases(14%)than those with all etiology groups with cirrhosis and AD(22.8%)(P<0.001).Among 242 enrolled AILD patients,the prevalence rates of primary biliary cirrhosis(PBC),autoimmune hepatitis(AIH)and PBC-AIH overlap syndrome(PBC/AIH)were 50.8%,28.5%and 12.0%,*** ACLF patients,the proportions of PBC,AIH and PBC/AIH were 41.2%,29.4% and 20.6%.28-d and 90-d mortality were 43.8% and 80.0% in AILD-related *** etiology of AILD had no significant impact on 28-d,90-d or 365-d LTfree mortality in patients with cirrhosis and AD in both univariate and multivariate *** bilirubin(TB),hepatic encephalopathy(HE)and blood urea nitrogen(BUN)were independent risk factors for 90-d LT-free mortality in multivariate *** development of ACLF during hospitalization only independently correlated to TB and international normalized *** AILD was not rare in hospitalized patients with cirrhosis and AD in China,among which PBC was the m

关键词： Prevalence Autoimmune liver disease Cirrhosis and acute decompensation Mortality Acuteon-chronic liver failure

Detection of an anti-angina therapeutic module in the effective population treated by a multi-target drug Danhong injection:a randomized trial

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Signal Transduction and Targeted Therapy 2021年第10期6卷 3009-3018页

作者： Jun Liu Dan-Dan Li Wei Dong Yu-Qi Liu yang wu Da-xuan Tang Fu-chun Zhang Meng Qiu Qi Hua Jing-Yu He Jun Li Bai Du Ting-hai Du Lin-Lin Niu Xue-Jun Jiang Bo Cui Jiang-Bin chen yang-Gan Wang hai-Rong Wang Qin Yu Jing He Yi-Lin Mao Xiao-Fang Bin Yue Deng Yu-Dan Tian Qing-Hua Han Da-Jin Liu Li-Qin Duan Ming-Jun Zhao Cui-Ying Zhang hai-Ying Dai Ze-Hua Li Ying Xiao You-Zhi Hu Xiao-Yu huang Kun Xing Xin Jiang Chao-Feng Liu Jing An Feng-chun Li Tao Tao Jin-Fa Jiang Ying yang Yao-Rong Dong Lei Zhang Guang Fu Ying Li Shu-Wei huang Li-Ping Dou Lan-Jun Sun Ying-Qiang Zhao Jie Li Yun Xia Jun Liu Fan Liu Wen-Jin He Ying Li Jian-Cong Tan yang Lin Ya-Bin Zhou Jian-Fei yang Guo-Qing Ma Hui-Jun chen He-Ping Liu Zong-wu Liu Jian-xiong Liu Xiao-Jia Luo Xiao-Hong Bin Ya-Nan Yu hai-Xia Dang Bing Li Fei Teng Wang-Min Qiao Xiao-Long Zhu Bing-Wei chen Qi-Guang chen chun-Ti Shen Yong-yan Wang Yun-Dai chen Zhong Wang Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijingChina Department of Cardiology Chinese PLA General HospitalBeijingChina Department of Cardiology Dongfang Hospital Affiliated to Beijing University of Chinese MedicineBeijingChina Department of Geratology Peking University Third HospitalBeijingChina Department of Cardiology Xuan Wu HospitalCapital Medical UniversityBeijingChina Department of Cardiology Guang'anmen HospitalChina Academy of Chinese Medical SciencesBeijingChina Department of Cardiology First Affiliated Hospital of Henan University of Chinese MedicineZhengzhouHenanChina Department of Cardiology Wuhan University Renmin HospitalWuhanHubeiChina Department of Cardiology Wuhan University Zhongnan HospitalWuhanHubeiChina Affiliated Zhongshan Hospital of Dalian University DalianLiaoningChina Department of Cardiology Second Affiliated Hospital to Hunan University of Chinese MedicineChangshaHunanChina Department of Cardiology First Affiliated Hospital to Changchun University of Chinese MedicineChangchunJilinChina Department of Cardiology First Affiliated Hospital to Shanxi Medical UniversityTaiyuanShanxiChina Department of Cardiology Affiliated Hospital of Shanxi University of Chinese MedicineXianyangShanxiChina Department of Cardiology Changsha Central HospitalChangshaHunanChina Department of Cardiology Hubei Provincial Hospital of Traditional Chinese MedicineWuhanHubeiChina Department of Cardiology Shanxi Provincial People's HospitalXi'anShanxiChina Department of Cardiology Shanxi Province Hospital of Traditional Chinese MedicineXi'anShanxiChina Department of Cardiology Xi'an City Hospital of Traditional Chinese MedicineXi'anShanxiChina Department of Cardiology Shanghai Tongji HospitalShanghaiChina Department of Cardiology Shanghai Municipal Hospital of Traditional Chinese MedicineShanghaiChina Department of Cardiology The First Hospital of ChangshaChangshaHunanChina Department of Cardiology Xinhua Hospi

It's a challenge for detecting the therapeutic targets of a polypharmacological drug from variations in the responsed networks in thedfferentiated populations with complex diseases,as stable coronary heart ***,in an adaptive,31-center,randomized,double-blind trial invoving 920 patients with moderate symptomatic stable angina treated by 14-day Danhong injection(DHI),a kind of polyphamacological drug with high quality control,or placebo(0.9%saline),with 76-day following-up,we firstly confrmed that DHl couldincrease the proportion of patients with clinically significant changes on angina-frequency assessed by Seattle Angina Questionnaire(ASAQ-AF220)(12.78%at Day 30,95%confidence interval[C]5.86-19.71%,P=0.0003,13.82%at Day 6C0,95%CI 6.82-20.82%,P=0.0001and 8.95%at Day 90,95%CI 2.06-15.85%,P=0.01).We also found that there were no significant differences in new-onset major vascularevents(P=0.8502)and serious adverse events(P=0.9105)between DHl and *** performing the RNA sequencing in 62 selectedpatients,we developed a systemic modular approach tp identfy differentilly expressed modules(DEMs)of DHI with the Z_(summay)valueless than 0 compared with the control group,calculated by weighted gene co-expression network analysis(WGCNA),and sketched out thebasic framework on a modular map with 25 functional modules targeted by ***,the effective therapeutic module(ETM),defined as the highest corelation value with the phenotype alteration(SAQ-AF,the change in SAQ-AF at Day 30 from baseline)calculatedby WGCNA,was identifed in the population with the best effect(ASAQ-AF240),which is related to anticoagulation and regulation ofcholesterol *** assessed the modular flexbility of this ETM using the global topological D value based on Euclidean distance,which is corelated with phenotype alteration(r^(2):0.8204,P=0.019)by linear *** study identified the ant-angina therapeuticmodule in the effective population treated by the multi-target

关键词： angina injection sketch

Data processing and data products from 2017 to 2019 campaign of astronomical site testing at Ali,Daocheng and Muztagh-ata

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Research in Astronomy and Astrophysics 2020年第6期20卷 109-130页

作者： Zi-huang Cao Jin-Xin Hao Lu Feng Hugh RAJones Jian Li Jing Xu Li-Yong Liu Teng-Fei Song Jian-Feng Wang Hua-Lin chen yan-Jie Xue huang Shen Yong-Heng Zhao Zhao-Xiang Qi Jian-Rong Shi Yuan Tian Zheng Wang Xia Wang Jin-Liang Hou Jin-Ming Bai Ji yang Xu Zhou Yong-Qiang Yao Jia Yin Ali Esamdin Guang-Xin Pu Peng Wei chun-hai Bai Guo-Jie Feng Lu Ma xuan Zhang Yu Liu Chong pei Zhi-Xia Shen Yun-Ying Jiang Jian-Feng Tian Xian-Qun Zeng Zhi-Gang Hou Xu yang Jun-Bo Zhang Shi-Long Liao Dong-Wei Fan Yun-Fei Xu Jian-Ping xiong Tai-Sheng yan Xi Zhang Chang-Hua Li Yi-Han Tao Si-cheng Yu Zhi-Song Cao Hong-Shuai Wang National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism Communication University of ChinaBeijing 100024China Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210033China Beijing Kaiyang Space Technology Co. LtdBeijing 100085China

Based on previous site testing and satellite cloud data,Ali,Daocheng and Muztagh-ata have been selected as candidate sites for the Large Optical/Infrared Telescope(LOT) in *** present the data collection,processing,management and quality analysis for our site testing based on using similar *** analyze meteorological data,seeing,background light,cloud and precipitable water vapor data from 2017 March 10 to 2019 March *** also investigated the relative usefulness of our all-sky camera data in comparison to that from the meteorological TERRA satellite data based on a night-by-night comparison of the correlation and consistency between *** find a 6% discrepancy arising from a wide range of factors.

关键词： LOT Site-selection-data processing

Searching for ^(76)Ge neutrinoless double beta decay with the CDEX-1B experiment

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Chinese Physics C 2024年第10期48卷 11-22页

作者： Bing-Tao Zhang Jun-Zheng Wang Li-Tao yang Qian Yue Ke-Jun Kang Yuan-Jing Li hai-Peng An C.Greeshma Jian-Ping Chang Yun-Huan chen Jian-Ping cheng Wen-Han Dai Zhi Deng Chang-Hao Fang Xin-Ping Geng Hui Gong Qiu-Ju Guo Xu-Yuan Guo Li He Sheng-Ming He Jin-Wei Hu Han-xiong huang Tu-chen huang hai-Tao Jia Xi Jiang S.Karmakar Hao-Bin Li Jian-Min Li Jin Li Qian-Yun Li Ren-Ming-Jie Li Xue-Qian Li Yu-Lan Li Yi-Fan Liang Bin Liao Fong-Kay Lin Shin-Ted Lin Jia-xuan Liu Shu-Kui Liu yan-Dong Liu Yu Liu Yuan-Yuan Liu Zhong-Zhi Liu Hao Ma Yu-Cai Mao Qi-Yuan Nie Jin-Hua Ning Hui Pan Ning-chun Qi Jie Ren Xi-Chao Ruan Ze She Manoj Kumar Singh Tian-Xi Sun Chang-Jian Tang Wei-You Tang yang Tian Guang-Fu Wang Li Wang Qing Wang Yu-Feng Wang Yun-Xiang Wang Henry-Tsz-King Wong Shi-Yong wu Yu-cheng wu Hao-yang Xing Rui Xu Yin Xu Tao Xue Yu-Lu yan Nan Yi chun-Xu Yu hai-Jun Yu Jian-Feng Yue Ming Zeng Zhi Zeng Feng-Shou Zhang Lei Zhang Zhen-Hua Zhang Zhen-Yu Zhang Kang-Kang Zhao Ming-Gang Zhao Ji-Fang Zhou Zu-Ying Zhou Jing-Jun Zhou Key Laboratory of Particle and Radiation Imaging(Ministry of Education)and Department of Engineering Physics Tsinghua UniversityBeijing 100084 Department of Physics Tsinghua UniversityBeijing 100084 Institute of Physics Academia SinicaTaipei 11529 NUCTECH Company Beijing 100084 YaLong River Hydropower Development Company Chengdu 610051 College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875 College of Physics Sichuan UniversityChengdu 610065 School of Physics Peking UniversityBeijing 100871 Department of Nuclear Physics China Institute of Atomic EnergyBeijing 102413 Sino-French Institute of Nuclear and Technology Sun Yat-sen UniversityZhuhai 519082 School of Physics Nankai UniversityTianjin 300071 Department of Physics Banaras Hindu UniversityVaranasi 221005 Department of Physics Beijing Normal UniversityBeijing 100875

We operated a p-type point contact high purity germanium(PPCGe)detector(CDEX-1B,1.008 kg)in the China Jinping Underground Laboratory(CJPL)for 500.3 days to search for neutrinoless double beta(0νββ)decay of ^(76)Ge.A total of 504.3 kg⋅day effective exposure data was *** anti-coincidence and the multi/single-site event(MSE/SSE)discrimination methods were used to suppress the background in the energy region of interest(ROI,1989–2089 keV for this work)with a factor of 23.A background level of 0.33 counts/(keV⋅kg⋅yr)was *** lower limit on the half life of^(76)Ge 0νββdecay was constrained as T_(1/2)^(0ν)>1.0×10^(23)yr(90%C.L.),corresponding to the upper limits on the effective Majorana neutrino mass:<3.2–7.5 eV.

关键词： neutrinoless double beta decay CDEX point-contact germanium detector ^(76)Ge

血清胱抑素C、CA125和骨保护素检测对冠心病患者的临床意义探析

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中国现代药物应用 2018年第8期12卷 3-5页

作者：陈佩宣杨春生吴细妹黄美芳东莞广济医院 523690

目的探析血清胱抑素C、糖类抗原125(CA125)和骨保护素检测对冠心病患者的临床意义。方法 60例冠心病患者作为观察组,50例体检健康人作为参照组,观察组采用冠状动脉造影检查及超声心动图检查,在此基础上,两组均采用免疫比浊法检测血清胱... 详细信息

目的探析血清胱抑素C、糖类抗原125(CA125)和骨保护素检测对冠心病患者的临床意义。方法 60例冠心病患者作为观察组,50例体检健康人作为参照组,观察组采用冠状动脉造影检查及超声心动图检查,在此基础上,两组均采用免疫比浊法检测血清胱抑素C水平、化学免疫发光法检测CA125水平、酶联免疫吸附试验(ELISA)法检测骨保护素水平,并予以对比。结果观察组患者血清胱抑素C、CA125和骨保护素水平分别为(1.43±0.50)mg/L、(49.48±15.63)U/ml、(273±57)ng/L,均显著高于参照组的(0.74±0.17)mg/L、(10.24±4.86)U/ml、(202±52)ng/L,差异均具有统计学意义(P<0.05)。冠状动脉病变支数越多,血清胱抑素C、CA125和骨保护素水平越高,左室射血分数(LVEF)越低,比较差异具有统计学意义(P<0.05)。心功能级别越高,血清胱抑素C、CA125和骨保护素水平越高,LVEF水平越低,比较差异具有统计学意义(P<0.05)。结论血清胱抑素C、CA125和骨保护素联合检测的方式,能够准确评价机体心功能缺损程度,在冠心病早期诊断中的意义极高。

关键词：血清胱抑素C 糖类抗原125 骨保护素冠心病

Timing analysis of the black hole candidate EXO 1846–031 with Insight-HXMT monitoring

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Research in Astronomy and Astrophysics 2021年第3期21卷 193-204页

作者： He-Xin Liu Yue huang Guang-cheng Xiao Qing-Cui Bu Jin-Lu Qu Shu Zhang Shuang-Nan Zhang Shu-Mei Jia Fang-Jun Lu Xiang Ma Lian Tao Wei Zhang Li chen Li-Ming Song Ti-pei Li Yu-Peng Xu Xue-Lei Cao Yong chen Cong-Zhan Liu Ce Cai Zhi Chang Gang chen Tian-Xiang chen Yi-Bao chen Yu-Peng chen Wei Cui Wei-Wei Cui Jing-Kang Deng Yong-Wei Dong Yuan-Yuan Du Min-Xue Fu Guan-Hua Gao He Gao Min Gao Ming-Yu Ge Yu-Dong Gu Ju Guan cheng-cheng Guo Da-Wei Han Jia Huo Lu-Hua Jiang Wei-chun Jiang Jing Jin Yong-Jie Jin Ling-Da Kong Bing Li cheng-Kui Li Gang Li Mao-Shun Li Wei Li Xian Li Xiao-Bo Li Xu-Fang Li yang-Guo Li Zheng-Wei Li Xiao-Hua Liang Jing-Yuan Liao Bai-Sheng Liu Guo-Qing Liu Hong-Wei Liu Xiao-Jing Liu Yi-Nong Liu Bo Lu Xue-Feng Lu Qi Luo Tao Luo Bin Meng Yi Nang Jian-Yin Nie Ge Ou Na Sai Ren-cheng Shang Xin-Ying Song Liang Sun Ying Tan You-Li Tuo chen Wang Guo-Feng Wang Juan Wang Ling-Jun Wang Weng-Shuai Wang Yu-Sa Wang Xiang-yang Wen Bai-yang wu Bo-Bing wu Mei wu Shuo Xiao Shao-Lin xiong He Xu Jia-Wei yang Sheng yang yan-Ji yang Yi-Jung yang Qi-Bin Yi Qian-Qing Yin Yuan You Ai-Mei Zhang cheng-Mo Zhang Fan Zhang Hong-Mei Zhang Juan Zhang Tong Zhang Wan-Chang Zhang Wen-Zhao Zhang Yi Zhang Yi-Fei Zhang Yong-Jie Zhang Yuan-Hang Zhang Yue Zhang Zhao Zhang Zhi Zhang Zi-Liang Zhang hai-Sheng Zhao Xiao-Fan Zhao Shi-Jie Zheng Yao-Guang Zheng Deng-Ke Zhou Jian-Feng Zhou Yu-xuan Zhu Ren-Lin Zhuang Yue Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institut fur Astronomie und Astrophysik Kepler Center for Astro and Particle PhysicsEberhard Karls Universität72076 TubingenGermany Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China College of Physics Sciences&Technology Hebei UniversityBaoding 071002Hebei ProvinceChina

We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT,NICER and *** outburst can be classified roughly into four different ***-C quasi-periodic oscillations(QPOs)observed by NICER(about 0.1-6 Hz)and Insight-HXMT(about 0.7-8 Hz)are also reported in this ***,we study various physical quantities related to QPO *** QPO rms-frequency relationship in the energy band 1-10 keV indicates that there is a turning pointing in frequency around2 Hz,which is similar to that of GRS 1915+105.A possible hypothesis for the relationship above may be related to the inclination of the source,which may require a high inclination to explain *** relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources,which can indicate that the origin of type-C QPOs is non-thermal.

关键词： X-ray binaries black hole candidate QPO EXO 1846–031

液相色谱-串联质谱法测定食品接触材料及制品中新戊二醇迁移量

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分析测试学报 2021年第8期40卷 1208-1212页

作者：李泽荣郭旭东凌光耀陈意光熊小婷李露郭培春刘德云吴晓纯谢文缄黄晓钢广州质量监督检测研究院国家包装产品质量监督检验中心(广州)广东广州511447

采用液相色谱-串联质谱(LC-MS/MS)建立了食品接触材料及制品中新戊二醇的测定方法。样品采用水、4%(体积分数,下同)乙酸、10%乙醇、20%乙醇、50%乙醇、95%乙醇和橄榄油作为食品模拟物进行迁移试验后,水、4%乙酸、10%乙醇浸泡液直接过滤... 详细信息

采用液相色谱-串联质谱(LC-MS/MS)建立了食品接触材料及制品中新戊二醇的测定方法。样品采用水、4%(体积分数,下同)乙酸、10%乙醇、20%乙醇、50%乙醇、95%乙醇和橄榄油作为食品模拟物进行迁移试验后,水、4%乙酸、10%乙醇浸泡液直接过滤进样,其他乙醇类模拟物浸泡液采用氮吹方式去除大部分乙醇后重新用水定容,橄榄油浸泡液采用10%乙醇萃取。经处理后的试液采用ACQUITY UPLC■BEH C_(18)(50 mm×2.1 mm,1.7μm)色谱柱,以0.01%甲酸溶液-乙腈为流动相进行梯度洗脱,在电喷雾离子源正离子(ESI+)多反应监测(MRM)模式下进行检测,外标法定量。在优化条件下,新戊二醇在10~100μg/L(μg/kg)范围内线性关系良好,相关系数大于0.999。在10、20、100μg/L(μg/kg)3个加标水平下,方法回收率为92.8%~117%,相对标准偏差(RSD)为0.90%~8.6%,检出限(LOD,S/N≥3)为5μg/L(μg/kg),定量下限(LOQ,S/N≥10)为10μg/L(μg/kg)。该方法具有前处理简单易行、灵敏度高、稳定可靠的优点,涉及的食品模拟物基本包括相关法规和标准中规定的类型,方法LOD和LOQ均低于相关法规和标准中的限量要求,能够满足食品接触材料及制品中新戊二醇迁移量的检测需求,为相关产品监管和质量控制提供了可靠的技术手段。

关键词：液相色谱-串联质谱法食品接触材料新戊二醇迁移量

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伯乐树ISSR分子标记体系的建立

浙江林业科技 2011年第1期31卷 11-15页

作者：谢正成楼雄珍姚理武黄华宏林二培骆文坚陈春梅浙江省庆元县林业局浙江庆元323800 浙江农林大学浙江临安311300 浙江省林业种苗管理总站浙江杭州310020

从浙江省庆元县等地采集23份野生伯乐树单株叶片为试验材料,采用单因素对比试验和正交优化试验研究了模板DNA、Taq DNA聚合酶的用量,以及Mg^(2+)、dNTP、引物浓度和退火温度对PCR扩增的影响,建立伯乐树适宜的ISSR-PCR扩增体系,即20μL... 详细信息

从浙江省庆元县等地采集23份野生伯乐树单株叶片为试验材料,采用单因素对比试验和正交优化试验研究了模板DNA、Taq DNA聚合酶的用量,以及Mg^(2+)、dNTP、引物浓度和退火温度对PCR扩增的影响,建立伯乐树适宜的ISSR-PCR扩增体系,即20μL体系中含90ng模板DNA,1×PCR buffer,1.0mmol/L Mg^(2+),0.15mmol/LdNTP,0.5μmol/L引物,0.75U Taq DNA聚合酶,退火温度为50℃。

关键词：伯乐树 ISSR 分子标记