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HCV 6a was expanding and became the predominant subtype among blood donors between 2004 and 2019 in Guangdong, China

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Virologica Sinica 2022年第5期37卷 765-768页

作者： Rongsong Du Ru Xu Jieting Huang Hao Wang Min Wang Qiao liao Zhengang shan Huishan Zhong Yourong Zheng Xia Rong Yongshui Fu Guangzhou Blood Center Guangzhou510095China The Key Medical Laboratory of Guangzhou Guangzhou510095China(2021-2023) Department of Transfusion Medicine School of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhou510515China

Dear Editor,There were an estimated 9.4 million patients with chronic hepatitis C virus(HCV)in China,putting a considerable burden on public health(Polaris Observatory HCV Collaborators,2022).What is more,the incidence of HCV infection increased 14.5%every year based on data from China's National Notifiable Diseases Reporting System(Zhang et al.,2019).Approximately 75%of individuals infected with HCV develops chronic hepatitis,while long-term chronic HCV infection is the most important cause of liver fibrosis,cirrhosis,and hepatocellular carcinoma.

关键词： predominant expanding

Preventive effect of gelatinizedly-modified chitosan film on peritoneal adhesion of different types

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World Journal of Gastroenterology 2007年第8期13卷 1262-1267页

作者： Xie-Lai Zhou shan-Wen Chen Guo-Dong liao Zhou-Jun Shen Zhi-Liang Zhang Li Sun Yi-Jun Yu Qiao-Ling Hu Xiao-Dong Jin Department of Urology The First Affiliated Hospital College of Medicine Zhejiang University Hangzhou 310003 Zhejiang Province China Department of Urology Ruijin Hospital School of Medicine Shanghai Jiaotong University Shanghai 200025 China Surgical Department Clinical Medical College of Hangzhou Teachers College Hangzhou 310036 Zhejiang Province China Experimental Center of Medical Science Hangzhou Teachers College Hangzhou 310036 Zhejiang Province China Institute of Polymer Composites Zhejiang University Hangzhou 310027 Zhejiang Province China

AIM： To comparatively study the preventive effect of gelatinizedly-modified chitosan film on peritoneal adhesions induced by four different factors in rats. METHODS： Chitosan was chemically modified by gelatinization, and made into films of 60 μm in thickness, and sterilized. Two hundred Sprague-Dawley rats were randomly divided into five groups, Sham-operation group （group A）, wound-induced adhesion group （group B）, purified talc-induced adhesion group （group C）, vascular ligation-induced adhesion group （group D）, and infection-induced adhesion group （group E）, respectively. In each group, the rats were treated with different adhesion-inducing methods at the cecum of vermiform processes and then were divided into control and experimental subgroups. Serous membrane surface of vermiform processes were covered with the films in the experimental subgroups, and no films were used in the control subgroups. After 2 and 4 wk of treatments, the abdominal cavities were reopened and the adhesive severity was graded blindly according to Bhatia＇s method. The cecum of vermiform processes were resected for hydroxyproline （OHP） measurement and pathological examination. RESULTS： Adhesion severity and OHP level： After 2 and 4 wk of the treatments, in the experimental subgroups, the adhesions were significantly lighter and the OHP levels were significantly lower than those of the control subgroups in group B （2 wk： 0.199 ± 0.026 vs 0.285 ± 0.041 μg/mg pr, P 〈 0.001; 4 wk： 0.183 ± 0.034 vs 0.276 ± 0.03 μg/mg pr, P 〈 0.001）, D （2 wk： 0.216 ± 0.036 vs 0.274 ± 0.040 μg/mg pr, P = 0.004; 4 wk： 0.211 ± 0.044 vs 0.281 ± 0.047 μg/mg pr, P = 0.003） and E （2 wk： 0.259 ± 0.039 vs 0.371 ± 0.040 μg/mg pr, P 〈 0.001; 4 wk： 0.242 ± 0.045 vs 0.355 ± 0.029 μg/mg pr, P 〈 0.001）, but there were no significant differences in groups A （2wk： 0.141 ± 0.028 vs 0.137 =k 0.026 μg/mg pr, P = 0.737; 4 wk： 0.132 ± 0.031 vs 0.150 ± 0.035 μg/mg pr, P = 0.225） and C （2 wk： 0.395 ± 0.044 vs 0.378 ± 0.043 μg/mg p

关键词： Chitosan Gelatinization Chemical modification Peritoneum Adhesion

Evaluation of the learning curve of laser peripheral iridectomy:the 20^(th)case reaches the turning point

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International Journal of Ophthalmology(English edition) 2022年第12期15卷 1960-1965页

作者： Yao Liu Yu-Ying Zhou Cheng-Guo Zuo Yun-Ru liao Jia-Wei Ren Hui-shan Lin Xin-Bo Gao Ming-Kai Lin State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangzhou 510060Guangdong ProvinceChina Longgang District Maternity&Child Healthcare Hospital of Shenzhen City Shenzhen 518172Guangdong ProvinceChina

AIM:To explore the learning curve for ophthalmologists at the start of laser peripheral iridectomy(LPI)***:The learning curve of 4 doctor groups without previous LPI experience was *** main parameters of LPI were reviewed:total energy,argon energy and neodymium-doped yttrium aluminum garnet(Nd:YAG)*** were evaluated in cohorts of 20 cases to identify the turning points of the three ***:There was no significant difference in terms of age or eye among the 4 doctor *** were stable trends on the learning curve for the Doctor A and C groups regarding total energy and argon *** addition,the turning points on the learning curve were determined after the 20th procedure for the Doctor B and D groups regarding total energy and argon ***,the Nd:YAG energy was relatively stable since the first ***:It requires approximately 20 procedures for a beginner to reach a turning point on the learning curve regarding *** can serve as a point of reference or guideline for training beginners to perform LPI.

关键词： learning curve laser peripheral iridectomy primary angle-closure glaucoma

Design and implementation of instruction-driven and data-driven self-reconfigurable cell array

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High Technology Letters 2023年第1期29卷 31-40页

作者：山蕊 XIA Xinyuan YANG Kun CUI Xinyue liao Wang GAO Xu School of Electronic Engineering Xi’an University of Posts and TelecommunicationsXi’an 710121P.R.China School of Safety Science and Engineering Xi’an University of Science and TechnologyXi’an 710054P.R.China

The reconfigurable chip,which integrates the advantages of high performance,high flexibility,high parallelism,low power consumption,and low cost,has achieved rapid development and wide ***,the control part and the computing part of algorithm is accelerated based on different reconfigurable architectures,but it is difficult to obtain overall performance *** improving efficiency of reconfigurable structure both for the control part and the computing part,a hybrid of instruction-driven and data-driven self-reconfigurable cell array is *** instruction-driven mode,processing element(PE)works like a reduced instruction set computer(RSIC)machine,which is mainly for the control part of *** data-driven mode,data is calculated by flowing between the preconfigured PEs,which is mainly for the computing of *** verifying the efficiency of architecture,some high-efficiency video coding(HEVC)video compression algorithms are implemented on the proposed *** proposed architecture has been implemented on Xilinx FPGA Virtex UltraScale VU440 develop *** same circuitry is able to run at75 *** with the architecture that only supports instruction-driven,the proposed architecture has better calculation efficiency.

关键词： cell array configurable computing data-driven instruction-driven

Targeted metabolomics reveals dynamic changes during the manufacturing process of Yuhua tea,a stir-fried green tea

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Beverage Plant Research 2021年第1期1卷 42-52页

作者： Kexin Zhang Taiyu Ren Jieren liao shan Wang Zhongwei Zou Yuanchun Ma Fang Li Wanping Fang Xujun Zhu College of Horticulture Nanjing Agricultural UniversityNanjing 210095China Biotechnology of Natural Products Technische Universität MünchenLiesel‐Beckmann‐Strasse 1Freising85354 Germany Department of Plant Science University of Manitoba66 Dafoe RoadWinnipegMB R3T 2N2Canada

The chemical composition of Yuhua tea is in a state of constant change during tea ***,the dynamic changes in this complex metabolic process remain ***,we detected the changes of compounds in the five stages of processing of Yuhua tea,and carried out metabolomic analysis based on UPLC–*** total,898 metabolites were detected in the five different *** the spreading and fixation processes,the differences in metabolites were the most significant,with 127 and 150 metabolites,respectively,undergoing significant *** the spreading period,the levels of amino acids and their derivatives,as well as flavonoids,increased sharply,and most continued to increase or stabilized after *** addition,only 26 and 95 metabolites changed significantly during the rolling and drying processes,*** projections to latent structures-discriminant analysis showed that the metabolomics of tea changed significantly during the manufacturing process,especially amino acids and derivatives,flavonoids and *** study provides a comprehensive overview of the metabolic changes during the processing of stir-fried green tea,which has potential significance for quality control and flavor improvement of tea.

关键词： dynamic process sharply

Characteristics and Performance of Novel Water-Absorbent Slow Release Nitrogen Fertilizers

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Agricultural Sciences in China 2007年第3期6卷 338-346页

作者： HE Xu-sheng liao Zong-wen HUANG Pei-zhao DUAN Ji-xian GE Ren-shan LI Hong-bo GENG Zeng-chao Postdoctorate Exchange Centre for Plant Protection South China Agricultural University Guangzhou 510642 P.R.China Enterprise Postdoctorate Centre for Batian Eco-Engineering Co. Shenzhen 518105 P.R.China College of Resources and Environment Science Northwest A＆F University Yangling 712100 P.R.China

In this article, a research on the characteristics and performance of water-absorbent slow release nitrogen fertilizer （WASRNF） using infrared spectroscopy （IR）, scanning electronic microscopy （SEM）, differential scanning calorimetry （DSC）, and thermogravimetry analysis （TGA）, was present. The results indicate that the water absorbency and nitrogen analysis of WASRNF is 103 g g^-1 and 30%, respectively, and WASRNF exhibits approximately neutral pH and very low salt index. WASRNF is a copolymer of nitrogen fertilizer and super absorbent polymer （SAP） monomers which is formed through hydrogen bond interaction, and the molecule contains hydrophilic groups, which is responsible for the absorption and water retention capacity of the molecule. WASRNF is a gel that exhibits the ability to swell, but does not dissolve in water. WASRNF shows non-homogenous nature as a whole, but in local zone it is homogenous, the copolymer molecule shows chain network that is the physical structure responsible for absorption and retention of water in WASRNF. The water retained in WASRNF exists as free and nonfreezing bound and freezing bound water states, with the free and the nonfreezing water accounting for more than 95% of water retained in WASRNF, and the nonfreezing bound water for less than 5%. WASRNF functions in delaying the release of nitrogen from it, thereby serving a novel slow release nitrogenous fertilizer.

关键词： water-absorbent slow release nitrogen fertilizer characteristics performance

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南海北部海洋平台环境参数嵌套逻辑分布估计

船舶力学 2018年第10期22卷 1181-1188页

作者：董胜廖振焜冯亮陶山山中国海洋大学工程学院山东青岛266100

海洋平台环境参数的单因素设计标准无法反映真实海况,文章针对该缺点提出了基于最大熵边缘的三维嵌套逻辑模型。该模型采用的最大熵边缘可以涵盖大多数设计线型,如Gumbel分布、Weibull分布、对数正态分布等;三维嵌套逻辑模型可以反映海... 详细信息

海洋平台环境参数的单因素设计标准无法反映真实海况,文章针对该缺点提出了基于最大熵边缘的三维嵌套逻辑模型。该模型采用的最大熵边缘可以涵盖大多数设计线型,如Gumbel分布、Weibull分布、对数正态分布等;三维嵌套逻辑模型可以反映海洋环境参数的相关关系及变量的不对称性。总结并提出了三种海洋环境条件设计标准,即单因素统计方法、条件概率分布设计法和联合环境条件设计法。利用南海涠洲岛后报的年极值风速及对应有效波高、平均周期数据,对三维模型和海洋平台环境条件联合设计标准进行了实例验证。结果表明,三维模型对数据拟合良好,联合设计标准更符合实际。

关键词：三维嵌套逻辑模型最大熵分布海洋平台海洋环境要素

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民族地区财政金融政策的反贫困效应研究

中国人口·资源与环境 2014年第9期24卷 110-117页

作者：林建廖杉杉重庆大学可持续发展研究院重庆400044 重庆社会科学院改革杂志社重庆400020

贫困问题不仅仅是个经济问题,还是个重大的政治问题;如果贫困问题处理得好,则国家经济繁荣、政治稳定;否则,国家可能会因为贫困问题而走向衰败,甚至是灭亡;基于此,重视贫困问题已经成为全人类的共识。从我国的实际情况来看,受历史和现... 详细信息

贫困问题不仅仅是个经济问题,还是个重大的政治问题;如果贫困问题处理得好,则国家经济繁荣、政治稳定;否则,国家可能会因为贫困问题而走向衰败,甚至是灭亡;基于此,重视贫困问题已经成为全人类的共识。从我国的实际情况来看,受历史和现实等多方面原因的影响,民族地区已经成为我国贫困的重灾区,这在一定程度上制约我国经济的健康稳定可持续发展;要全面建成小康社会,早日实现中华民族的伟大复兴,必须高度重视民族地区的贫困问题。本文在剖析财政金融政策反贫困理论基础上,以我国五个省级民族自治地区的18个地级市1999-2012年的数据为例,实证民族地区财政金融政策的反贫困效应。理论分析表明:民族地区财政金融政策的反贫困效应,是通过财政政策、金融政策和财政金融政策的联动作用于民族地区第一、二、三产业的发展,拉动民族地区经济增长,进而减少民族地区贫困人口来实现的。在财政政策方面,国家重点从税收优惠、财政补贴、财政支出等方面着手,在金融政策方面,国家重点从利率政策着手,在财政金融政策联动方面,国家尤为重视两种政策不同功能的有机结合,竭力促进民族地区第一、二、三产业的发展,在确保民族地区整体经济稳步增长的同时,逐步减少民族地区的贫困人口。实证检验结果显示:民族地区财政政策、金融政策和财政金融政策联动效应的系数均为负且显著,说明民族地区财政政策、金融政策和财政金融政策联动效应的发挥对于民族地区贫困状况的缓解具有积极作用;同时,通过比较民族地区财政政策、金融政策和财政金融政策联动效应的系数大小还发现,民族地区财政政策的实施对民族地区贫困状况的影响高于金融政策,且民族地区在反贫困过程中所实施的财政政策对金融政策具有干预作用。基于此,要切实有效地解决民族地区的贫困问题,需要在完善当前国家针对民族地区反贫困的财政金融政策基础上,与时俱进,出台更具针对性的财政金融政策,重视财政政策和金融政策的导向性、激励性,也要重视财政金融政策联动所带来的正向效应。

关键词：民族地区财政金融政策反贫困

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国外农产品价格调控的经验及其对我国的启示

广东农业科学 2013年第12期40卷 219-222页

作者：廖杉杉重庆社会科学院改革杂志社重庆400020

从农产品产-供-销一体化的视角出发,全面系统地归纳总结了以美国、欧盟和日本为代表的主要国家和地区在农产品价格调控方面的具体做法,并对这些做法的共性进行了抽象概括;同时,在紧密结合我国实际情况的基础上,指出了国外农产品价格调... 详细信息

从农产品产-供-销一体化的视角出发,全面系统地归纳总结了以美国、欧盟和日本为代表的主要国家和地区在农产品价格调控方面的具体做法,并对这些做法的共性进行了抽象概括;同时,在紧密结合我国实际情况的基础上,指出了国外农产品价格调控经验对我国的启示,认为我国要确保农产品价格的基本稳定,政府应从农产品产-供-销一体化的每一个环节着手,不仅要重视农产品的均衡稳定供给,还需要重视农产品的流通与销售。

关键词：农产品价格价格波动