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情报资料工作 2008年第1期29卷 51-54页

作者：张永杰鲁东大学图书馆烟台264025

文章系统地总结和归纳了国内外主要网上文献传递系统的基本特征,并从八个方面对这些系统的基本特征进行了分析、评价,提出了相关的对策与建议。

关键词：文献传递系统网上文献传递服务国内外

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儒家如何影响股利政策?

系统工程理论与实践 2020年第9期40卷 2236-2251页

作者：古志辉张永杰孟庆斌南开大学公司治理研究院商学院天津300071 天津大学管理与经济学部天津300072 中国人民大学商学院北京100872

公平是法制的基本原则.儒家是否与法律相似,会一视同仁地对待大股东和中小股东的利益诉求,却是一个容易被忽视的问题.基于2002-2017年A股上市公司的数据,本文对儒家与股利政策的关系展开研究.结果表明儒家伦理是投资者保护的重要机制,... 详细信息

公平是法制的基本原则.儒家是否与法律相似,会一视同仁地对待大股东和中小股东的利益诉求,却是一个容易被忽视的问题.基于2002-2017年A股上市公司的数据,本文对儒家与股利政策的关系展开研究.结果表明儒家伦理是投资者保护的重要机制,不仅有效地遏制了大股东通过现金股利谋求控制权私人收益的行为,而且提高了中小股东通过合法途径参与公司治理的效率.上述结果意味着儒家伦理会差别对待大股东和中小股东的利益诉求,但传承儒家传统文化不可能削弱法制的治理效果.本文为理解儒家伦理与投资者保护的关系提供了新的视角.

关键词：儒家投资者保护现金股利

Xanthogranulomatous cholecystitis misdiagnosed as gallbladder carcinoma: retrospective analysis of 10 cases

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The Chinese-German Journal of Clinical Oncology 2007年第3期6卷 215-219页

作者： Xiangji Luo Tian Yang Baihe zhang Xiaoqing Jiang yongjie zhang Mengchao Wu Department of Biliary Tract Surgery Eastern Hepatobiliary Surgery Hospital Second Military Medical UniversityShanghai 200438 China

Objective: To investigate the reasons for misdiagnosing xanthogranulomatous cholecystitis (XGC) as gallbladder carcinoma, and to provide differential points between these two diseases. Methods: Thirty-three patients with the final diag- nosis of XGC in our hospital over a period of 10 years (1996–2005) were reviewed, among which 10 (6 males and 4 females) were misdiagnosed as having gallbladder carcinoma either preoperatively or intraoperatively. Results: 10 misdiagnosed cases were examined preoperatively by B-ultrasound (BUS) and computed tomography (CT). BUS and CT revealed 5 cases of gallbladder carcinoma and 1 of chronic cholecystitis; 2 cases were diagnosed as gallbladder carcinoma on BUS but chronic cholecystitis on CT; other 2 cases were diagnosed as chronic cholecystitis on BUS but as gallbladder carcinoma on CT. Intra- operatively, thickening of the gallbladder wall was found in all of the patients; xanthogranulomatous tissue was found invading into other tissues including gallbladder bed and omentum majus. Intraoperative frozen section investigation was performed on 1 patient revealing that no tumor cell was found. Open cholecystectomy + partial hepatic wedge resection were performed on 3 patients; cholecystectomy + partial hepatic wedge resection + regional lymphadenectomy in the liver duodenum ligament on 6 patients; cholecystectomy + cholecystoenterostomy + colocolic anastomosis after partial resection of transverse colon on 1 patient. Postoperative pathological findings revealed XGC in all these patients. Conclusion: XGC is an uncommon variant of chronic cholecystitis of which clinical and imaging presentations closely resemble gallbladder carcinoma. Thus differentiation is essential by means of intraoperative frozen section investigation to ensure optimal surgical treatment since XGC has its pathological distinctions, which are not that of a precancerous change.

关键词： xanthogranulomatous cholecystitis gallbladder carcinoma diagnosis differential diagnosis

A combined Cox and logistic model provides accurate predictive performance in estimation of time-dependent probabilities for recurrence of intrahepatic cholangiocarcinoma after resection

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Hepatobiliary Surgery and Nutrition 2021年第4期10卷 464-475,I0002-I0008页

作者： Seogsong Jeong Guijuan Luo Qiang Gao Jing Chen Xiaolong Liu Liangqing Dong yongjie zhang Feng Shen Qingbao Cheng Chengjun Sui Jingfeng Liu Hongyang Wang Qiang Xia Lei Chen Department of Liver Surgery Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina International Cooperation Laboratory on Signal Transduction Eastern Hepatobiliary Surgery InstituteSecond Military Medical UniversityShanghaiChina National Center for Liver Cancer ShanghaiChina Department of Liver Surgery and Transplantation Liver Cancer InstituteZhongshan Hospitaland Key Laboratory of Carcinogenesis and Cancer Invasion(Ministry of Education)Fudan UniversityShanghaiChina Mengchao Hepatobiliary Hospital Fujian Medical UniversityFuzhouChina Biliary Tract Department II Eastern Hepatobiliary Surgery HospitalSecond Military Medical UniversityShanghaiChina Department of Hepatobiliary Surgery Eastern Hepatobiliary Surgery HospitalSecond Military Medical UniversityShanghaiChina Biliary Tract Department I Eastern Hepatobiliary Surgery HospitalSecond Military Medical UniversityShanghaiChina Department of Special Medical Care&Liver Transplantation Eastern Hepatobiliary Surgery HospitalSecond Military Medical UniversityShanghaiChina Shanghai Cancer Center Shanghai Medical CollegeFudan UniversityShanghaiChina

HepatoBiliary Surg Nutr 2021;10(4):464-475|http://***/10.21037/hbsn.2020.01.07 Original Article A combined Cox and logistic model provides accurate predictive performance in estimation of time-dependent probabilities for recurrence of intrahepatic cholangiocarcinoma after resection Seogsong Jeong1,2#,Guijuan Luo2,3#,Qiang Gao4#,Jing Chen2,3#,Xiaolong Liu5,Liangqing Dong4,yongjie zhang6,Feng Shen7,Qingbao Cheng8,Chengjun Sui9,Jingfeng Liu5,Hongyang Wang2,3,Qiang Xia1,Lei Chen2,101Department of Liver Surgery,Renji Hospital,School of Medicine,Shanghai Jiao Tong University,Shanghai,China;2International Cooperation Laboratory on Signal Transduction,Eastern Hepatobiliary Surgery Institute,Second Military Medical University,Shanghai,China;3National Center for Liver Cancer,Shanghai,China;4Department of Liver Surgery and Transplantation,Liver Cancer Institute,Zhongshan Hospital,and Key Laboratory of Carcinogenesis and Cancer Invasion(Ministry of Education),Fudan University,Shanghai,China;5Mengchao Hepatobiliary Hospital,Fujian Medical University,Fuzhou,China;6Biliary Tract Department II,Eastern Hepatobiliary Surgery Hospital,Second Military Medical University,Shanghai,China;7Department of Hepatobiliary Surgery,Eastern Hepatobiliary Surgery Hospital,Second Military Medical University,Shanghai,China;8Biliary Tract Department I,Eastern Hepatobiliary Surgery Hospital,Second Military Medical University,Shanghai,China;9Department of Special Medical Care&Liver Transplantation,Eastern Hepatobiliary Surgery Hospital,Second Military Medical University,Shanghai,China;10Shanghai Cancer Center,Shanghai Medical College,Fudan University;Shanghai,China Contributions:(I)Conception and design:S Jeong,G Luo,Q Gao,J Chen,J Liu,H Wang,Q Xia,L Chen;(II)Administrative support:All authors;(III)Provision of study materials or patients:S Jeong,G Luo,Q Gao,J Chen,J Liu,H Wang,Q Xia,L Chen;(IV)Collection and assembly of data:All authors;(V)Data analysis and interpretation:S Jeong,G Luo,Q Gao,J C

关键词： Primary liver cancer biliary malignancy hepatectomy surgery resection regression model nomogram.

Comparison of mitochondrial genomes provides insights into intron dynamics and evolution in the caterpillar fungus Cordyceps militaris

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Comparison of mitochondrial genomes provides insights into i...

中国菌物学会2015年学术年会

作者： yongjie zhang Xingzhong Liu Chengshu Wang Jianping Xu School of Life Sciences Shanxi University State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of Sciences Institute of Plant Physiology and Ecology Shanghai Institutes for Biological SciencesChinese Academy of Sciences Department of Biology McMaster University

Intra-specific comparison of mitochondrial genomes can help elucidate the evolution of a species, however it has not been performed for hypocrealean fungi that form diverse symbiotic associations with other organisms. In this study, comparative analyses of three completely sequenced mitochondrial genomes of a hypocrealean fungus, Cordyceps militaris, the type species of Cordyceps genus, revealed that the introns were the main contributors to mitochondrial genome size variations among strains. Mitochondrial genes in C. militaris have been invaded by group I introns in at least eight positions. PCR assays of various C. militaris isolates showed abundant variations of intron presence/absence among strains at seven of the eight intronic loci. Although the ancestral intron pattern was inferred to contain all eight introns, loss and/or gain events occurred for seven of the eight introns. These introns invaded the C. militaris mitochondrial genome probably by horizontal transfer from other fungi, and intron insertions into intronless genes in C. militaris were accompanied by co-conversions of upstream exon sequences especially for those introns targeting protein-coding genes. We also detected phylogenetic congruence between the intron and exon trees at each individual locus, consistent with the ancestral mitochondria of C. militaris as having all eight introns. This study helps to explain the evolution of C. militaris mitochondrial genomes and will facilitate population genetic studies of this medicinally important fungus.

关键词： Cordyceps militaris mitochondrial genome intron dynamics horizontal gene transfer co-conversion

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层合板预紧螺栓搭接孔边应力分析

应用力学学报 2009年第2期26卷 389-392页

作者：张永杰孙秦西北工业大学西安710072

针对复合材料层合板预紧螺栓单板搭接和双板搭接结构,分别建立了全尺寸三维有限元模型,应用非线性接触算法模拟螺栓连接,采用Prets179预紧力单元施加螺栓预紧力。通过分析两种搭接形式在不同预紧力下的孔边应力分布,得到了预紧力与孔边... 详细信息

针对复合材料层合板预紧螺栓单板搭接和双板搭接结构,分别建立了全尺寸三维有限元模型,应用非线性接触算法模拟螺栓连接,采用Prets179预紧力单元施加螺栓预紧力。通过分析两种搭接形式在不同预紧力下的孔边应力分布,得到了预紧力与孔边拉应力以及预紧力与孔边层间应力的关系曲线。分析表明:随着螺栓预紧力增加,层合板孔边拉应力水平不断降低;双板搭接的孔边应力明显低于单板搭接的孔边应力。

关键词：复合材料层合板接触算法搭接预紧螺栓

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肝门部胆管癌临床认知的争议与焦点

中华外科杂志 2020年第4期58卷 284-288页

作者：王向张永杰海军军医大学东方肝胆外科医院胆道二科上海200438

目前,外科手术是唯一可能治愈肝门部胆管癌的手段,但其疗效尚无法令人满意,患者预后整体不佳。近年来,肝门部胆管癌的临床认知、诊断及治疗策略已有长足进步,但仍存在许多争议和焦点问题,且在临床指南中缺乏基于高级别循证医学证据的统... 详细信息

目前,外科手术是唯一可能治愈肝门部胆管癌的手段,但其疗效尚无法令人满意,患者预后整体不佳。近年来,肝门部胆管癌的临床认知、诊断及治疗策略已有长足进步,但仍存在许多争议和焦点问题,且在临床指南中缺乏基于高级别循证医学证据的统一意见。这些问题不仅关乎手术的合理选择与患者预后,也是目前开展多中心研究异质性的主要来源。本文对相关问题进行梳理和探讨,希望为未来相关的临床研究提供思路。

关键词：胆道肿瘤外科手术

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社会组织与企业协作的动力机制

中国行政管理 2015年第10期 69-73页

作者：张毅张勇杰对外经济贸易大学公共管理学院

社会组织与企业的关系正在经历从对抗到协作的转型,然而这种关系的转变并非一蹴而就。共同的利益只是为双方的协作提供了可能,可持续的动力是二者希望能够从协作中实现组织间资源需求与资源供给能力的平衡,形成利益的互补。而在协作达... 详细信息

社会组织与企业的关系正在经历从对抗到协作的转型,然而这种关系的转变并非一蹴而就。共同的利益只是为双方的协作提供了可能,可持续的动力是二者希望能够从协作中实现组织间资源需求与资源供给能力的平衡,形成利益的互补。而在协作达成之后,面对不同的协作背景和现实问题,形成了内外两种不同的动力机制,即以供应链为载体的压力驱动机制和以伙伴关系为契机的项目驱动机制。

关键词：社会组织企业协作动力机制

考虑损伤阀值影响的岩石损伤统计软化本构模型及其参数确定方法

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岩石力学与工程学报 2008年第6期27卷 1148-1154页

作者：曹文贵赵衡张玲张永杰湖南大学岩土工程研究所湖南长沙410082

在基于Lemaitre应变等价性理论的岩石损伤模型基础上,首先探讨岩石应变软化变形过程中损伤变量或损伤因子的变化规律,并结合岩石应变软化变形全过程特征及其损伤机制的研究,探讨建立岩石损伤演化模型时考虑损伤阀值影响的必要性;其次,... 详细信息

在基于Lemaitre应变等价性理论的岩石损伤模型基础上,首先探讨岩石应变软化变形过程中损伤变量或损伤因子的变化规律,并结合岩石应变软化变形全过程特征及其损伤机制的研究,探讨建立岩石损伤演化模型时考虑损伤阀值影响的必要性;其次,在对现有岩石微元强度度量方法研究的基础上,提出可考虑损伤阀值影响的新型岩石微元强度度量方法,并引进统计损伤理论,建立可考虑损伤阀值影响的岩石统计损伤演化模型,该模型不仅能反映损伤阀值的影响,而且能反映岩石损伤程度受应力状态影响和岩石损伤在不同应力状态下损伤起始点不同的特性;再次,在此基础上,建立能充分模拟岩石应变软化变形全过程的损伤统计本构模型,并提出其参数确定方法,该模型不仅能充分反映岩石在低应力水平或变形较小时的线弹性变形特性,而且模型参数物理意义明确,适用于复杂应力状态情况;最后,通过工程实例分析,验证了该模型的合理性。

关键词：岩石力学损伤阀值应变软化本构模型微元强度统计损伤理论

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土的初始和再压缩曲线分析模型

岩石力学与工程学报 2015年第A1期34卷 166-173页

作者：曹文贵李鹏张超张永杰湖南大学岩土工程研究所湖南长沙410082 湖南省高速公路管理局湖南长沙410001 长沙理工大学土木工程与建筑学院湖南长沙410014

土的初始和再压缩过程中,孔隙比与压力关系(即e-p曲线)是天然地基沉降计算与分析的关键之一。首先在土的初始压缩变形机制及其e-p曲线特征研究基础上,引入土应力–应变关系的双曲线模型,并从完全侧限条件下土的应变与孔隙比关系入手,建... 详细信息

土的初始和再压缩过程中,孔隙比与压力关系(即e-p曲线)是天然地基沉降计算与分析的关键之一。首先在土的初始压缩变形机制及其e-p曲线特征研究基础上,引入土应力–应变关系的双曲线模型,并从完全侧限条件下土的应变与孔隙比关系入手,建立出土的初始压缩e-p曲线分析模型及其参数确定分析方法;然后,根据土的初始与再压缩e-p曲线模型的区别是其初始孔隙比与初始压缩模量不同及其产生的原因,提出再压缩土的初始孔隙比与初始压缩模量等参数确定方法,进而建立出考虑应力历史影响的再压缩土e-p曲线分析模型。本文建立的初始与再压缩e-p曲线分析模型均只包含初始孔隙比、初始压缩模量和压缩系数3个常规试验参数,模型简单,参数少,且物理意义明确。最后,通过实测与理论分析曲线的对比分析,表明了该模型的合理性与可行性。

关键词：土力学初始压缩再压缩孔隙比压缩应力 e-p曲线模型应力历史