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1Multimodality treatment in hepatocellular carcinoma patients with tumor thrombi in portal vein显示文摘AIM To compare the therapeutic effect andsignificances of multimodality treatment forhepatocellular carcinoma (HCC) with tumorthrombi in portal vein (PVTT).METHODS HCC patients (n = 147) with tumortrombi in the main portal vein or the first branchof portal vein were divided into four groups bythe several therapeutic methods. There wereconservative treatment group in 18 out ofpatients (group A); and hepatic artery ligation(HAL) and/or hepatic artery infusion (HAl)group in 18 patients (group B), in whompostoberative chemoembolization was doneperiodically; group of removal of HCC with PVTTin 79 (group C) and group of transcatheterhepatic arterial chemoembolization (TACE) orHAl and/or portal vein infusion (PVI) afteroperation in 32 (group D).RESULTS The median survival period was 12months in our series and the 1-, 3-, and 5-yearsurvival rates were 44.3%, 24.5% and 15.2%,respectively. The median survival times were 2,5, 12 and 16 months in group A, B, C and D,respectively. The 1-, 3- and 5-year survival rateswere 5.6%, 0% and 0% in group A; 22.2%,5.6% and 0% in group B; 53.9%, 26.9% and16.6% in group C; 79.3%, 38.9% and 26.8% ingroup D, respectively. Significant differenceappeared in the survival rates among the groups(P<0.05).CONCLUSION Hepatic resection with removalof tumor thrombi and HCC should increase thecurative effects and be encouraged for theprolongation of life span and quality of life forHCC patients with PVTT, whereas the besttherapeutic method for HCC with PVTT is withregional hepatic chemotherapy orchemoemblization after hepatic resection withremoval of tumor thrombi.Jia Fan Zhi Quan Wu Zhao You Tang Jian Zhou Shuang Jian Qiu Zeng Chen Ma Xin Da Zhou Sheng Long Ye Liver Cancer Institute, Zhongshan Hospital, Fudan University Medical Center (Former Shanghai University), 136 Yixueyuan Road, Shanghai 200032, China 2001World Journal of Gastroenterology2001,7,1:80
2Activation of gibberellin 2-oxidase 6 decreases active gibberellin levels and creates a dominant semi-dwarf phenotype in rice (Oryza sativa L.)显示文摘Gibberellin (GA) 2-oxidase plays a key role in the GA catabolic pathway through 2β-hydroxylation.In the present study,we isolated a CaMV 35S-enhancer activation tagged mutant,H032.This mutant exhibited a dominant dwarf and GA-deficient phenotype,with a final stature that was less than half of its wild-type counterpart.The endogenous bioactive GAs are markedly decreased in the H032 mutant,and application of bioactive GAs (GA3 or GA4) can reverse the dwarf phenotype.The integrated T-DNA was detected 12.8 kb upstream of the OsGA2ox6 in the H032 genome by TAIL-PCR.An increased level of OsGA2ox6 mRNA was detected at a high level in the H032 mutant,which might be due to the enhancer role of the CaMV 35S promoter.RNAi and ectopic expression analysis of OsGA2ox6 indicated that the dwarf trait and the decreased levels of bioactive GAs in the H032 mutant were a result of the up-regulation of the OsGA2ox6 gene.BLASTP analysis revealed that OsGA2ox6 belongs to the class III of GA 2-oxidases,which is a novel type of GA2ox that uses C20-GAs (GA12 and/or GA53) as the substrates.Interestingly,we found that a GA biosynthesis inhibitor,paclobutrazol,positively regulated the OsGA2ox6 gene.Unlike the over-expression of OsGA2ox1,which led to a high rate of seed abortion,the H032 mutant retained normal flowering and seed production.These results indicate that OsGA2ox6 mainly affects plant stature,and the dominant dwarf trait of the H032 mutant can be used as an efficient dwarf resource in rice breeding.Jian Huang Ding Tang Yi Shen Baoxiang Qin Lilan Hong Aiqing You Ming Li Xin Wang Hengxiu Yu Minghong Gu Zhukuan Cheng 2010Journal of Genetics and Genomics2010,37,1:36
3Expert consensus on the use of human serum albumin in critically ill patients显示文摘Introduction Human serum albumin(HSA)is a non-glycosylated,negatively charged,single-chain polypeptide composed of 585 amino acid residues with a relative molecular mass of 66.438 kD.It is synthesized by the liver at a rate of approximately 200 mg·kg^(-1)·day^(-1),with a half-life of 21 days,and subjected to catabolism in the muscles,liver,and kidneys at a rate of 4%per day.[1]Albumin,accounting for 60%of the total plasma protein,has various physiological functions,[2]such as maintaining 70%to 80%of effective plasma colloid osmotic pressure,coordinating vascular endothelial integrity,anti-oxidant and anti-inflammatory activities,maintaining the acidbase balance,and participating in the transport,distribution,and metabolism of a variety of endogenous and exogenous substances.Yue-Tian Yu Jiao Liu Bo Hu Rui-Lan Wang Xiang-Hong Yang Xiu-Ling Shang Gang Wang Chang-Song Wang Bai-Ling Li Ye Gong Sheng Zhang Xin Li Lu Wang Min Shao Mei Meng Feng Zhu You Shang Qiang-Hong Xu Zhi-Xiong Wu De-Chang Chen 2021Chinese Medical Journal2021,,14:22
4Cystatin C is a biomarker for predicting acute kidney injury in patients with acute-on-chronic liver failure显示文摘AIM:To investigate serum cystatin C level as an early biomarker for predicting acute kidney injury(AKI)in patients with acute-on-chronic liver failure(ACLF).METHODS:Fifty-six consecutive patients with hepatitis B virus-related ACLF who had normal serum creatinine(Cr)level(<1.2 mg/dL in men,or<1.1 mg/dL in women)were enrolled in the Liver Failure Treatment and Research Center of Beijing 302 Hospital between August 2011 and October 2012.Thirty patients with chronic hepatitis B(CHB)and 30 healthy controls in the same study period were also included.Measurement of serum cystatin C(CysC)was performed by a particle-enhanced immunonephelometry assay using the BN Prospec nephelometer system.The ACLF patients were followed during their hospitalization period.RESULTS:In the ACLF group,serum level of CysC was 1.1±0.4 mg/L,which was significantly higher(P<0.01)than those in the healthy controls(0.6±0.3mg/L)and CHB patients(0.7±0.2 mg/L).During the hospitalization period,eight ACLF patients developed AKI.Logistic regression analysis indicated that CysC level was an independent risk factor for AKI development(odds ratio=1.8;95%CI:1.4-2.3,P=0.021).The cutoff value of serum CysC for prediction of AKI in ACLF patients was 1.21 mg/L.The baseline CysC-based estimated glomerular filtration rate(eGFR CysC)was significantly lower than the creatinine-based eGFR(eGFR CG and eGFR MDRD)in ACLF patients with AKI,suggesting that baseline eGFR CysC represented early renal function in ACLF patients while the Cr levels were still within the normal ranges.CONCLUSION:Serum CysC provides early prediction of renal dysfunction in ACLF patients with a normal serum Cr level.Zhi-Hong Wan Jian-Jun Wang Shao-Li You Hong-Ling Liu Bing Zhu Hong Zang Chen Li Jing Chen Shao-Jie Xin 2013World Journal of Gastroenterology2013,19,48:20
5Intestinal Microbial Community Differs between Acute Pancreatitis Patients and Healthy Volunteers显示文摘包括 45 尖锐胰腺炎和 44 个健康志愿者的案例控制研究被执行调查在肠的微生物引起的社区和尖锐胰腺炎之间的协会。定序的高产量的 16S rRNA 基因 amplicon 被用来介绍样品的 microbiological 作文。总共, 27 微生物引起的数被检测,胰腺炎病人的样品包含了更少数。从尖锐胰腺炎病人的样品从健康志愿者比那些包含了更多的 Bacteroidetes 和 Proteobacteria 和更少 Firmicutes 和 Actinobacteria。PCoA 分析健康志愿者把尖锐胰腺炎病人的烘便的微生物引起的社区与那些区分开来。尖锐胰腺炎病人的肠的微生物与健康志愿者的那些不同。肠的 microbiome 的调整可以为对待尖锐胰腺炎用作其他的策略。ZHANG Xi Mei ZHANG Zheng Yu ZHANG Chen Huan WU Jing WANG You Xin ZHANG Guo Xin 2018Biomedical and Environmental Sciences2018,31,1:20
6Molecular Epidemiological Characteristics of Streptococcus pyogenes Strains Involved in an Outbreak of Scarlet Fever in China,2011显示文摘Objective To investigate molecular characterization of streptococcus pyogenes isolates involved in an outbreak of scarlet fever in China in 2011.Methods Seventy-four Streptococcal pyogenes involved in an outbreak of scarlet fever were isolated from pediatric patients in the areas with high incidence in China from May to August of 2011.Emm genotyping,pulsed-field gel electrophoresis (PFGE),superantigen (SAg) genes and antimicrobial susceptibility profiling were analyzed for these isolates.Results A total of 4 different emm types were identified.Emm12 was the most prevalent type which contained four predominating PFGE patterns corresponding to four different virulence and superantigen profiles.Emm12 (79.7%) and emml (14.9%) accounted for approximately 94%of all the isolates.The speA gene was all negative in emm12 isolates and positive in emml isolates.All strains were resistant to erythromycin,and 89.4%of them were resistant to erythromycin,tracycline,and clindamycin simultaneously.Conclusion Several highly diversified clones with a high macrolide resistance rate comprise a predominant proportion of circulating strains,though no new emm type was found in this outbreak.The data provide a baseline for further surveillance of scarlet fever,which may contribute to the explanation of the outbreak and development of a GAS vaccine in China.YOU Yuan Hai SONG Yan Yan YAN Xiao Mei WANG Hai Bin ZHANG Meng Han TAO Xiao Xia Li Lei Lei ZHANG Yu Xin JIANG Xi Hong ZHANG Bing Hua ZHOU Hao XIAO Di JIN Lian Mei FENG Zi Jian LUO Feng Ji ZHANG Jian Zhong 2013Biomedical and Environmental Sciences2013,26,11:15
7Chinese Hα Solar Explorer(CHASE)——a complementary space mission to the ASO-S显示文摘The Chinese HαSolar Explorer(CHASE)is designed to test a newly developed satellite platform and conduct solar observations.The scientific payload of the satellite is an Hαimaging spectrograph(HIS),which can,for the first time,acquire full-disk spectroscopic solar observations in the Hαwaveband.This paper briefly introduces CHASE/HIS including its scientific objectives,technical parameters,scientific application system,etc.The CHASE mission is scheduled to launch in 2021.It will complement the observations by on-orbit solar spacecraft(such as SDO,IRIS,STEREO and PSP),as well as future solar missions of the Solar Orbiter and Advanced Space-based Solar Observatory(ASO-S).Chuan Li Cheng Fang Zhen Li Ming-De Ding Peng-Fei Chen Zhe Chen Liang-Kui Lin Chang-Zheng Chen Chang-Ya Chen Hong-Jiang Tao Wei You Qi Hao Yu Dai Xin Cheng Yang Guo Jie Hong Min-Jie An Wei-Qiang Cheng Jian-Xin Chen Wei Wang Wei Zhang 2019Research in Astronomy and Astrophysics2019,19,11:12
8Reversible transition between hepatocytes and liver progenitors for in vitro hepatocyte expansion显示文摘Wu, Han Zhou, Xu Fu, Gong-Bo He, Zhi-Ying Wu, Hong-Ping You, Pu Ashton, Charles Wang, Xin Wang, Hong-Yang Yan, He-Xin 2017Cell Research2017,27,5:12
9Ultrafast fiber lasers mode-locked by two-dimensional materials:review and prospect显示文摘The year 2019 marks the 10th anniversary of the first report of ultrafast fiber laser mode-locked by graphene.This result has had an important impact on ultrafast laser optics and continues to offer new horizons.Herein,we mainly review the linear and nonlinear photonic properties of two-dimensional(2D)materials,as well as their nonlinear applications in efficient passive mode-locking devices and ultrafast fiber lasers.Initial works and significant progress in this field,as well as new insights and challenges of 2D materials for ultrafast fiber lasers,are reviewed and analyzed.TIAN JIANG KE YIN CONG WANG JIE YOU HAO OUYANG RUNLIN MIAO CHENXI ZHANG KE WEI HAN LI HAITAO CHEN RENYAN ZHANG XIN ZHENG ZHONGJIE XU XIANGAI CHENG HAN ZHANG 2020Photonics Research2020,8,1:11
10Measuring Conflict Functions in Generalized Power Space显示文摘One of the most important open issues is that the classical conflict coefficient in D-S evidence theory (DST) cannot correctly determine the conflict degree between two pieces of evidence. This drawback greatly limits the use of DST in real application systems. Early researches mainly focused on the improvement of Dempster’s rule of combination (DRC). However, the current research shows it is very important to define new conflict coefficients to determine the conflict degree between two or more pieces of evidence. The evidential sources of information are considered in this work and the definition of a conflict measure function (CMF) is proposed for selecting some useful CMFs in the next fusion work when sources are available at each instant. Firstly, the definition and theorems of CMF are put forward. Secondly, some typical CMFs are extended and then new CMFs are put forward. Finally, experiments illustrate that the CMF based on Jousselme and its similar ones are the best suited ones.HU Lifang GUAN Xin DENG Yong HAN Deqiang HE You 2011Chinese Journal of Aeronautics2011,24,1:11
11Grey GM(1,1) Model with Function-Transfer Method for Wear Trend Prediction and its Application显示文摘Trend forecasting is an important aspect in fault diagnosis and work state supervision. The principle, where Grey theory is applied in fault forecasting, is that the forecast system is considered as a Grey system; the existing known information is used to infer the unknown information’s character, state and development trend in a fault pattern, and to make possible forecasting and decisions for future development. It involves the whitenization of a Grey process. But the traditional equal time interval Grey GM (1,1) model requires equal interval data and needs to bring about accumulating addition generation and reversion calculations. Its calculation is very complex. However, the non equal interval Grey GM (1,1) model decreases the condition of the primitive data when establishing a model, but its requirement is still higher and the data were pre processed. The abrasion primitive data of plant could not always satisfy these modeling requirements. Therefore, it establishes a division method suited for general data modeling and estimating parameters of GM (1,1), the standard error coefficient that was applied to judge accuracy height of the model was put forward; further, the function transform to forecast plant abrasion trend and assess GM (1,1) parameter was established. These two models need not pre process the primitive data. It is not only suited for equal interval data modeling, but also for non equal interval data modeling. Its calculation is simple and convenient to use. The oil spectrum analysis acted as an example. The two GM (1,1) models put forward in this paper and the new information model and its comprehensive usage were investigated. The example shows that the two models are simple and practical, and worth expanding and applying in plant fault diagnosis.LUO You xin 1 , PENG Zhu 2 , ZHANG Long ting 1 , GUO Hui xin 1 , CAI An hui 1 1Department of Mechanical Engineering, Changde Teachers University, Changde 415003, P.R. China 2 Engineering Technology Board, Changsha Cigare 2001International Journal of Plant Engineering and Management2001,6,4:11
12Distribution, geochemistry and age of the Millennium eruptives of Changbaishan volcano, Northeast China - A review显示文摘大爆炸暴烈的爆发产生为识别火山的来源提供有利条件的广泛的地区性的 tephra 存款,比较一个区域的沉积阶层并且决定他们的年龄。tephra 层,叫作 B-Tm,由 Changbaishan 火山的千年爆发产生了,广泛地在东北中国,日本, D.P.R 朝鲜,和俄国的附近沿海的区域被散布。它形成普遍东北亚洲人阶层的部分并且为建立一个等时的 stratigraphic 框架是重要的。然而,用这 tephra 层在时间的描述和联系阶层的 stratigraphic 关联上研究主要被集中在并且在日本附近。在东北中国,这 tephra 层很少被看见,它在 stratigraphic 关联的申请甚至更稀罕。更重要地,为远侧、近似的 tephras 的精确年龄的决心被辩论了,导致在它的环境影响的讨论的争吵。从这爆发通常发生在 1,012 和 1,004 cal 年 BP 之间的远侧、近似的 Changbaishan 灰表演的 Stratigraphic 记录。在在日本附近的 Changbaishan 灰和第四级的普遍的灰之间的 Geochemical 比较说明 Changbaishan 灰是从 rhyolitic 的一篇连续作文到 trachytic 和它到 CaO 的 FeO ^潜水艇 T ^的比率,这通常比 4 大,它能在全球当代的爆发之中被用作一个区分的标识符[出版摘要]Chunqing SUN Haitao YOU Jiaqi LIU Xin LI Jinliang GAO Shuangshuang CHEN 2014Frontiers of Earth Science2014,8,2:10
13Clinical characteristics and corticosteroid therapy in patients with autoimmune-hepatitis-induced liver failure显示文摘AIM:To investigate the clinical features,response to corticosteroids,and prognosis of autoimmune hepatitis(AIH)-induced liver failure in China.METHODS:A total of 22 patients(19 female and 3male;average age 51±15 years)with AIH-induced liver failure treated in our hospital from 2004 to 2012were retrospectively analyzed.Clinical,biochemical and pathological characteristics of the 22 patients and responses to corticosteroid treatment in seven patients were examined retrospectively.The patients were divided into survivor and non-survivor groups,and the clinical characteristics and prognosis were compared between the two groups.The t test was used for data analysis of all categorical variables,and overall survival was calculated by the Kaplan-Meier method.RESULTS:At the time of diagnosis,mean IgG was2473±983 mg/dL,with three(18.8%)patients showing normal levels.All of the patients had elevated serum levels of antinuclear antibody(≥1:640).Liver histology from one patient showed diagnostic pathological changes,including massive necrosis and plasma cell infiltration.Four patients survived(18.2%)and 18died(81.8%)without liver transplantation.The results showed that patients with low admission Model for End-Stage Liver Disease(MELD)scores(21.50±2.08vs 30.61±6.70,P<0.05)and corticosteroid therapy(100%vs 16.7%,P<0.05)had better prognosis.A total of seven patients received corticosteroid therapy,of whom,four responded and survived,and the other three died.Survivors showed young age,shorter duration from diagnosis to corticosteroid therapy,low MELD score,and absence of hepatic encephalopathy at the time of corticosteroid administration.Six patients who were administered corticosteroids acquired fungal infections but recovered after antifungal therapy.CONCLUSION:Early diagnosis and corticosteroid therapy are essential for improving the prognosis of patients with AIH-induced liver failure without liver transplantation.Bing Zhu Shao-Li You Zhi-Hong Wan Hong-Ling Liu Yi-Hui Rong Hong Zang Shao-Jie Xin 2014World Journal of Gastroenterology2014,20,23:10
14Oral microbiota in human systematic diseases显示文摘Oral bacteria directly affect the disease status of dental caries and periodontal diseases. The dynamic oral microbiota cooperates with the host to reflect the information and status of immunity and metabolism through two-way communication along the oral cavity and the systemic organs. The oral cavity is one of the most important interaction windows between the human body and the environment.The microenvironment at different sites in the oral cavity has different microbial compositions and is regulated by complex signaling,hosts, and external environmental factors. These processes may affect or reflect human health because certain health states seem to be related to the composition of oral bacteria, and the destruction of the microbial community is related to systemic diseases. In this review, we discussed emerging and exciting evidence of complex and important connections between the oral microbes and multiple human systemic diseases, and the possible contribution of the oral microorganisms to systemic diseases. This review aims to enhance the interest to oral microbes on the whole human body, and also improve clinician’s understanding of the role of oral microbes in systemic diseases. Microbial research in dentistry potentially enhances our knowledge of the pathogenic mechanisms of oral diseases,and at the same time, continuous advances in this frontier field may lead to a tangible impact on human health.Xian Peng Lei Cheng Yong You Chengwei Tang Biao Ren Yuqing Li Xin Xu Xuedong Zhou 2022International Journal of Oral Science2022,14,1:9
15Structural Modulation of Gut Microbiota in Rats with Allergic Bronchial Asthma Treated with Recuperating Lung Decoction显示文摘Objective To investigate whether recuperating lung decoction(RLD) can modulate the composition of gut microbiota in rats during asthma treatment.Methods Fifteen Sprague-Dawley rats were divided randomly and equally into control group,model group,dexamethasone(DEX) group,RLD medium-dose group,and RLD high-dose group.The asthma model was established in all groups,except for the control group.The rats in the DEX and RLD groups were treated orally with DEX and RLD,respectively.The rats in the control and model groups were treated orally with 0.9% saline.The intestinal bacterial communities were compared among groups using 16 S r RNA gene amplification and 454 pyrosequencing.Results The microbial flora differed between the control and model groups,but the flora in the RLD groups was similar to that in the control group.No significant differences were observed between the RLD high-dose and medium-dose groups.RLD treatment resulted in an increase in the level beneficial bacteria in the gut,such as Lactobacillus and Bifidobacterium spp.Conclusion Oral administration of RLD increased the number of intestinal lactic acid-producing bacteria,such as Lactobacillus and Bifidobacterium,in asthma model rats.KONG Yan Hua SHI Qi HAN Na ZHANG Ling ZHANG Yuan Yuan GAO Tong Xin CHEN Chen LI You Lin 2016Biomedical and Environmental Sciences2016,29,8:9
16Strategies for improving the storage performance of silicon-based anodes in lithium-ion batteries显示文摘Silicon has attracted much attention as a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical capacity and rich resource abundance. However, the practical battery use of Si is challenged by its low conductivity and drastic volume variation during the Li uptake/release process. Tremendous efforts have been made on shrinking the particle size of Si into nanoscale so that the volume variation could be accommodated. However, the bare nano-Si material would still pulverize upon (de)lithiation. Moreover, it shows an excessive surface area to invite unlimited growth of solid electrolyte interface that hinders the transportation of charge carriers, and an increased interparticle resistance. As a result, the Si nanoparticles gradually lose their electrical contact during the cycling process, which accounts for poor thermodynamic stability and sluggish kinetics of the anode reaction versus Li. To address these problems and improve the Li storage performance of nano-Si anode, proper structural design should be applied on the Si anode. In this perspective, we will briefly review some strategies for improving the electrochemistry versus Li of nano-Si materials and their derivatives, and show opinions on the optimal design of nanostructured Si anode for advanced LIBs.Wei Tao Ping Wang Ya You Kyusung Park Cao-Yu Wang Yong-Ke Li Fei-Fei Cao Sen Xin 2019Nano Research2019,12,8:9
17Clinical Course and Outcome Patterns of Acute-on-chronic Liver Failure:A Multicenter Retrospective Cohort Study显示文摘Background and Aims:Acute-on-chronic liver failure(ACLF)is acute decompensation of liver function in the setting of chronic liver disease,and characterized by high short-term mortality.In this study,we sought to investigate the clinical course of patients at specific time points,and to propose dynamic prognostic criteria.Methods:We assessed the clinical course of 453 patients with ACLF during a 12-week follow-up period in this retrospective multicenter study.The clinical course of patients was defined as disease recovery,improvement,worsening or steady patterns based on the variation tendency in prothrombin activity(PTA)and total bilirubin(TB)at different time points.Results:Resolution of PTA was observed in 231 patients(51%)at 12 weeks after the diagnosis of ACLF.Among the remaining patients,66(14.6%)showed improvement and 156(34.4%)showed a steady or worsening course.In patients with resolved PTA,the clinical course of TB exhibited resolved pattern in 95.2%,improved in 3.9%,and steady or worse in 0.8%.Correspondingly,in patients with improved PTA,these values for TB were 28.8%,27.3%,and 43.9%,respectively.In patients with steady or worsening PTA,these values for TB were 5.7%,32.3%,and 65.6%,respectively.Dynamic prognostic criteria were developed by combining the clinical course of PTA/TB and the clinical outcomes at 4 and 12 weeks after diagnosis in ACLF patients.Conclusions:We propose the following dynamic prognostic criteria:rapid progression,slow progression,rapid recovery,slow recovery,and slow persistence,which lay the foundation for precise prediction of prognosis and the improvement of ACLF therapy.Man-Man Xu Ming Kong Peng-Fei Yu Ying-Ying Cao Fang Liu Bing Zhu Yi-Zhi Zhang Wang Lu Huai-Bin Zou Bin-Wei Duan Shao-Li You Shao-Jie Xin Tao Han Zhong-Ping Duan Yu Chen 2021Journal of Clinical and Translational Hepatology2021,9,5:8
18Repeatability and Reproducibility of Quantitative Assessment of the Retinal Microvasculature Using Optical Coherence Tomography Angiography Based on Optical Microangiography显示文摘Objective The aim of this study was to determine the repeatability and reproducibility of optical coherence tomography angiography(OCTA) based on optical microangiography(OMAG) measurements of macular vessels in normal eyes. Methods In this prospective cohort study, 40 eyes of 40 healthy volunteers underwent repeated OCTA(Cirrus HD-OCT 5000 angiography system, Carl Zeiss Meditec, Inc.) scans on two separate visit days. On each visit day, the eyes were scanned three times. The following parameters were used to quantitatively describe the OCTA images of the superficial vascular network: vessel area density(VAD), vessel skeleton density(VSD), vessel diameter index(VDI), vessel perimeter index(VPI), vessel complexity index(VCI), flux, and foveal avascular zone(FAZ). Coefficient of variation(CV) and intraclass correlation coefficient(ICC) were calculated for evaluating intravisit and intervisit repeatability, as well as interobserver reproducibility. Results The measurements showed high repeatability [CVs ≤ 4.2%(intravisit) and ≤ 4.6%(intervisit)] and interobserver reproducibility(ICCs ≥ 0.923) for all parameters. Conclusion This study demonstrated good repeatability and reproducibility of OCTA based on OMAG for the measurement of superficial vessel parameters in normal eyes.ZHAO Qi YANG Wen Li WANG Xiao Na Ruikang K Wang YOU Qi Sheng CHU Zhong Di XIN Chen ZHANG Meng Yu LI Dong Jun WANG Zi Yang CHEN Wei LI Yi Feng CUI Rui SHEN Lin WEI Wen Bin 2018Biomedical and Environmental Sciences2018,31,6:8
19New method for measuring the degree of conflict among general basic probability assignments显示文摘There is doubt about Dempster's rule of combination because of counter-intuitive results when dealing with conflict information in intelligent reasoning.Therefore,many modified combination rules have been presented in the literature on multi-source information fusion and reasoning with uncertainty.However,the issue of identifying conflict among evidence has been ignored.A new parameter measuring conflict evidence called the conflict distance parameter is defined to determine whether there are conflicts in evidence based on the analysis of existing conflict parameters.At the same time,a decisive rule,which a reasonable conflict measure function should satisfy,is put forward.Finally,an analysis of two typical counter-intuitive situations is given,showing that the new parameter can not only satisfy the decisive rule,but can also attain the same effect as a two-dimensional measure when deciding whether to use the Dempster's rule of combination,and can exceed its effect when deciding whether to use Dezert-Smarandache theory.HE You HU LiFang GUAN Xin DENG Yong HAN DeQiang 2012Science China(Information Sciences)2012,55,2:7
20The Chinese Hα Solar Explorer(CHASE) mission: An overview显示文摘The Chinese Hα Solar Explorer(CHASE), dubbed “Xihe”—Goddess of the Sun, was launched on October 14, 2021 as the first solar space mission of China National Space Administration(CNSA). The CHASE mission is designed to test a newly developed satellite platform and to acquire the spectroscopic observations in the Hα waveband. The Hα Imaging Spectrograph(HIS)is the scientific payload of the CHASE satellite. It consists of two observational modes: raster scanning mode and continuum imaging mode. The raster scanning mode obtains full-Sun or region-of-interest spectral images from 6559.7 to 6565.9 ? and from 6567.8 to 6570.6 ? with 0.024 ? pixel spectral resolution and 1 min temporal resolution. The continuum imaging mode obtains photospheric images in continuum around 6689 ? with the full width at half maximum of 13.4 ?. The CHASE mission will advance our understanding of the dynamics of solar activity in the photosphere and chromosphere. In this paper, we present an overview of the CHASE mission including the scientific objectives, HIS instrument overview, data calibration flow, and first results of on-orbit observations.Chuan Li Cheng Fang Zhen Li MingDe Ding PengFei Chen Ye Qiu Wei You Yuan Yuan MinJie An HongJiang Tao XianSheng Li Zhe Chen Qiang Liu Gui Mei Liang Yang Wei Zhang WeiQiang Cheng JianXin Chen ChangYa Chen Qiang Gu QingLong Huang MingXing Liu ChengShan Han HongWei Xin ChangZheng Chen YiWei Ni WenBo Wang ShiHao Rao HaiTang Li Xi Lu Wei Wang Jun Lin YiXian Jiang LingJie Meng Jian Zhao 2022Science China(Physics,Mechanics & Astronomy)2022,65,8:7
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