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Application and Pullback of the Risk- assumption Principle under Special Circumstances

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学术界 2014年第10期 268-272页

作者： Yang Lin wan rong Physical Culture Institute Chongqing University Chongqing 400044 Sub-district Office Huaxin Street of Jiangbei District Chongqing 400020

The risk-assumption principle in infringement is widely used in sport injuries,which is accepted in both the theoretical circle and the juridical practice in China. If the personal injury on the sports ground is not caused by wrongful conducts,the risk-assumption principle is applied,and the doer does not assume compensation liability. If the personal injury is caused by illegality or purposeful illegality to cause personal injury,the risk-assumption principle shall be pulled back totally or partially,and the fault-offset principle and fairly-share-loss principle shall be applied to balance the interests of the two parties. However,under some special circumstances,it is difficult to judge whether there are wrongly conducts; fromthe controversial sports phenomena and sports subjects,this paper analyzes the application and pullback of the risk-assumption principle under some special circumstances.

关键词：风险应用人身伤害运动损伤赔偿责任人身伤亡补偿原则网络连接

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水溶液体系中制备纳米银线的研究

贵金属 2024年第1期45卷 40-44页

作者：徐秀凤刘健郑晶戎万李美馨党蕊西安理工大学印刷包装与数字媒体学院西安710054 西北有色金属研究院西安710016

在水溶液体系中,以蔗糖为还原剂、NaCl为前驱体络合剂、PVP为表面活性剂,通过水热反应制备得到了直径大约为40 nm,线径分布均匀、分散性良好的纳米银线。有效解决了目前多元醇有机体系下制备纳米银线洗涤困难,反应条件苛刻,后处理繁琐... 详细信息

在水溶液体系中,以蔗糖为还原剂、NaCl为前驱体络合剂、PVP为表面活性剂,通过水热反应制备得到了直径大约为40 nm,线径分布均匀、分散性良好的纳米银线。有效解决了目前多元醇有机体系下制备纳米银线洗涤困难,反应条件苛刻,后处理繁琐等问题。系统研究了还原剂用量、还原剂种类、Cl-/Ag+摩尔比、卤化物种类和表面活性剂种类对于产物形貌的影响。结果表明,当还原剂蔗糖的用量为0.18 g,PVP的相对分子质量为58000,选择NaCl作为络合剂,且Cl-/Ag+摩尔比控制在1.26时,制备的纳米银线形貌均一,纯度较高,纳米线长径比大于1000。

关键词：纳米银线水溶液体系制备低成本

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肺结核合并肺栓塞患者实验室指标的诊断价值

临床荟萃 2024年第2期39卷 134-139页

作者：刘蕾李明武万荣大理大学公共卫生学院云南大理671000 昆明市第三人民医院结核二科云南昆明650041

目的探讨肺结核合并肺栓塞患者实验室指标的诊断价值,为提示肺结核患者发生肺栓塞提供依据。方法选择2019年1月至2021年12月我院确诊为肺结核合并肺栓塞的住院患者60例为观察组,按1∶1的比例选取确诊为单纯肺结核住院患者60例为对照组,... 详细信息

目的探讨肺结核合并肺栓塞患者实验室指标的诊断价值,为提示肺结核患者发生肺栓塞提供依据。方法选择2019年1月至2021年12月我院确诊为肺结核合并肺栓塞的住院患者60例为观察组,按1∶1的比例选取确诊为单纯肺结核住院患者60例为对照组,观察2组一般资料和相关实验室数据的差异,采用二元logistic回归分析其危险因素并对有意义的指标绘制受试者工作曲线,评估其诊断价值。结果观察组炎症指标:白细胞、中性粒细胞、C反应蛋白、降钙素原均高于对照组(P1.29 mg/L、抗凝血酶Ⅲ99.79 ng/L时,对肺结核患者发生肺栓塞有一定的预测价值,可以作为预测肺结核合并肺栓塞和评估患者预后的重要指标。

关键词：结核,肺肺栓塞 D-二聚体抗凝血酶Ⅲ

术后早期应用唑来膦酸对骨质疏松性股骨转子间骨折高龄患者预后的影响

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上海交通大学学报（医学版） 2024年第7期44卷 891-898页

作者：王北辰杨耀琦鲍其远温竣翔张伟滨万荣上海交通大学医学院附属瑞金医院骨科上海200025

目的·探究在接受防旋股骨近端髓内钉(proximal femoral nail antirotation,PFNA)手术治疗的骨质疏松性股骨转子间骨折高龄患者中,术后早期应用唑来膦酸对骨折愈合的影响,以及其他可能的相关因素。方法·回顾性分析2016年1月至2022年2... 详细信息

目的·探究在接受防旋股骨近端髓内钉(proximal femoral nail antirotation,PFNA)手术治疗的骨质疏松性股骨转子间骨折高龄患者中,术后早期应用唑来膦酸对骨折愈合的影响,以及其他可能的相关因素。方法·回顾性分析2016年1月至2022年2月于上海交通大学医学院附属瑞金医院行PFNA手术的80岁及以上的股骨转子间骨折患者174例,根据术后是否早期接受唑来膦酸治疗将患者分为实验组(n=26)和对照组(n=148),所有患者完成术后6周和12周2次随访。运用倾向性评分匹配(propensity score matching,PSM)法将实验组与对照组患者按照1∶3的比例进行匹配,匹配因素包括年龄、性别、骨折分型以及体质量指数(body mass index,BMI)。比较2组患者匹配后的一般资料,以及2次随访时的骨折愈合和功能恢复情况。采用Logistic回归分析探究患者术后12周骨折愈合的相关因素。结果·PSM法匹配后得到实验组患者25例和对照组患者65例,2组患者一般资料间差异均无统计学意义。实验组患者术后6周和12周的骨折愈合率分别为16.0%和96.0%,均显著高于对照组(分别为1.5%和73.8%,均P<0.05);实验组患者术后12周时Harris髋关节功能评分显著高于对照组(P=0.019)。Logistic回归分析结果显示,良好的手术复位(OR=12.52,95%CI 2.67~58.74,P=0.001)、术后早期使用唑来膦酸(OR=10.14,95%CI 1.01~102.09,P=0.049)和更高的血清白蛋白水平(OR=1.15,95%CI 1.02~1.29,P=0.025)为骨折愈合的促进因素,而不稳定型骨折(OR=0.10,95%CI 0.03~0.31,P=0.000)为不利因素。结论·对于接受PFNA手术的骨质疏松性股骨转子间骨折高龄患者,术后早期使用唑来膦酸可以促进骨折愈合且使患者获得更好的功能恢复;除此之外良好的术中复位、更高的血清白蛋白水平是促进骨折愈合的有利因素,而不稳定型骨折为骨折愈合的阻碍因素。

关键词：股骨转子间骨折唑来膦酸骨质疏松高龄

Growth and Distribution of Amphioctopus fangsiao(d'Orbigny, 1839–1841) in Haizhou Bay, Yellow Sea

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Journal of Ocean University of China 2020年第5期19卷 1125-1132页

作者： PANG Yumeng TIAN Yongjun FU Caihong REN Yiping wan rong Fisheries College Ocean University of ChinaQingdao 266003China Frontiers Science Center for Deep Ocean Multispheres and Earth System(FDOMES) Ocean University of ChinaQingdao 266100China Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Fisheries and Oceans Canada Pacific Biological StationNanaimoBritish Columbia V9T 6N7Canada College of Marine Sciences Shanghai Ocean UniversityShanghai 201306China

Octopus fisheries have prospered in many areas of the world ocean over the last six decades. Despite degradation and overexploitation of Chinese coastal ecosystems, octopus has become a stable Chinese domestic fishery species. Among the octopus species in the Bohai and Yellow, East and South China Seas, Amphioctopus fangsiao(d'Orbigny [in Férussac & d'Orbigny], 1839–1841) plays an increasingly important role both economically and ecologically. However, no systematic research has been conducted on its biology and population dynamics in the China Seas. In this study, we characterized the growth and distribution of A. fangsiao in Haizhou Bay, Yellow Sea based on four years of trawl survey data. As the results, A. fangsiao is characterized by allometric growth and an overall sex ratio of 0.97 with a slight male bias. Small octopus can be observed through a whole year, suggesting that A. fangsiao may have an extended or continuous spawning season. A. fangsiao may migrate short distances along with seasonal changes and coastal currents, considering they overwinter in the offshore water and spawn in the inshore water. In addition to fishing pressure, annual variations in the population structure and biomass appeared to be influenced by ambient water temperature. These results provide basic biological information for a better understanding of the population dynamics and the ecological importance of A. fangsiao.

关键词： Amphioctopus fangsiao cephalopod Haizhou Bay growth spatial distribution

基于血管生成相关lncRNAs的肝细胞癌预后风险模型的构建及验证

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岭南现代临床外科 2024年第1期24卷 7-13页

作者：罗婉蓉张文岳罗葆明中山大学孙逸仙纪念医院超声科广州510120

目的构建并验证基于血管生成相关长非编码RNA评估肝细胞癌患者的预后风险模型。方法利用Pearson相关分析筛选出与血管生成相关lncRNA,提取差异表达的血管生成相关lncRNA。通过多因素Cox回归联合LASSO回归建立风险预后模型,并通过生存分... 详细信息

目的构建并验证基于血管生成相关长非编码RNA评估肝细胞癌患者的预后风险模型。方法利用Pearson相关分析筛选出与血管生成相关lncRNA,提取差异表达的血管生成相关lncRNA。通过多因素Cox回归联合LASSO回归建立风险预后模型,并通过生存分析、独立预后分析、风险分析等进行验证。利用列线图模型进行预后预测、分析风险评分与免疫细胞、免疫微环境及免疫检查点表达的关系对预后模型进行评估。结果筛选出的血管生成相关的lncRNA构建的风险预后模型中,风险评分越高的HCC患者预后越差,巨噬细胞及Treg细胞的浸润也证明风险评分与免疫微环境改变相关。结论该模型对预测肝细胞癌患者的预后有较好的信度和效度。

关键词：肝细胞癌血管生成长非编码RNA 预后

Research progresses of artificial nucleic acid cleavage agents

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Chinese Science Bulletin 2000年第22期45卷 2017-2028页

作者： rong wan Gang Zhao Jing Chen Yufen Zhao Tsinghua Univ Dept Chem State Key Lab Bioorgan Phosphorus Chem Educ Minist ChinaSch Life Sci & Engn Beijing 100084 Peoples R China

Artificial nucleic acid cleavage agents have attracted close attention because they play important roles in biochemistry and molecular biology. According to the cleavage mechanism of nucleic acid, they are divided into three types, namely free radical, phosphodiester bond hydrolysis and elimination cleavage agents. In this review, a series of cleavage agents, including the site- and sequence-specific ones, are illustrated, and some suggestions for the future researches in this field are also put forward.

关键词： nucleic acid cleavage agents site-and sequence-specific cleavage agents free radical phosphodiester bond hydrolysis elimination.

The Effect of Three Culture Methods on Intensive Culture System of Pacific White Shrimp (Litopenaeus vannamei)

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Journal of Ocean University of China 2013年第3期12卷 434-440页

作者： MA Zhen wan rong SONG Xiefa GAO Lei College of Fisheries Ocean University of China Provincial Key Laboratory of Marine Fishery Molecular Biology of Liaoning Provincial Ocean and Fishery Science Institute of Liaoning

Different culture methods may affect the intensive culture system of Pacific white shrimp(Litopenaeus vannamei) regarding water quality and growth and economic *** study evaluated the potential effects of three culture methods through cultivation of juvenile shrimps under consistent tank management conditions for 84 *** three methods involved shrimp cultivation in different tanks,i.e.,outdoor tanks with cement bottom(mode-C),greenhouse tanks with cement bottom(mode-G) and outdoor tanks with mud-substrate(mode-M).Results showed that water temperature was significantly higher in mode-G than that in mode-C(P 0.05),mode-M had significantly higher shrimp yield,survival rate and feed conversion rate(P < 0.05) than other *** were significant differences in revenue and net return among different treatments(P < 0.05).These demonstrated that the treatments of mode-G and mode-M were conductive to the intensive culture system of ***.

关键词： culture method water quality growth performance economic performance Litopenaeus vannamei

Formation of Vacancy-Type Dislocation Loops in Hydrogen-Ion-Implanted Fe–Cr Alloy

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Acta Metallurgica Sinica(English Letters) 2019年第5期32卷 566-572页

作者： Yu-Feng Du Li-Juan Cui Wen-Tuo Han Fa-rong wan Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology

Fe-10 at.%Cr alloy was implanted with hydrogen ions at room temperature, followed by annealing at high *** annealing process made the defects develop into large dislocation loops. The nature of the dislocation loops formed after annealing was studied by the evolution of loops under in situ electron irradiation in high-voltage electron *** indicated that only interstitial-type loops were observed when annealed at 550 °C and below, but vacancy-type loops started to form at the temperature higher than 600 °C. According to the previous study of our group, the presence of chromium element made the formation temperature of vacancy-type loops higher than that in pure iron. The effect of alloying elements on the formation temperature of the vacancy-type loops was discussed.

关键词： Hydrogen implantation Interstitial-type loops Vacancy-type loops Fe–Cr alloy High-voltage electron microscope