上市公司财务造假行为的动因、手段及其防范

上市公司财务造假一直是社会各界关注的热点问题,虚假会计信息的泛滥将破坏国家的经济秩序,并损害投资者的长远利益。分析了上市公司财务造假行为的动因、手段,并对具体的防范措施进行了探索。     

Splicing-site recognition of rice (Oryza sativa L.)DNA sequences

INTRODUCTIONCorrectlypinpointingsplicing sitesingenomicDNAsequencesisnotaneasytask ,whichisofgreatimportancetothegenomeannotationandgenefinding .Intronsaregenerallydividedinto3classes,namelycalssI,classIIandcommonnu cleuspre mRNA .IntronofclassIandIIcango…     

互逆真蕴涵的建立过程为何要这样定义

互逆主义逻辑中的互逆真蕴涵的建立过程与经典逻辑中的实质蕴涵的定义一样,都是三真一假的真值表,但含义却不尽相同。     

融资租赁国际化实践中的若干法律问题

租赁公司和租赁交易的国际化,产生了相关国际立法协调统一的需求。以《国际融资租赁公约》为依据的国际融资租赁实践,对中国承租人有如下启示:应注意援引“公约”中关于出租人免责的除外条款;在出租人违反了权利担保义务或违约而未作补救之前,其有权拒付租金;选择管辖法院时务必顾及判决的可执行性;在合意选择准据法时,应事先就这一合意选择在相关国家的有效性作最后的确认。     

进一步提高自然科学基金资助项目的创新性之研究

中国国家自然科学基金委员会(NSFC)成立十年来,大力支持基础研究,强调了支持创新的政策,结出了丰硕的成果,证明科技体制改革迈出的这一步是十分正确的.但通过问卷调查,也发现目前无论是从体制、评审程序、资助政策、专家的遴选使用和管理上,都还存在一些不利于创新的因素.如何克服这些不利因素,文中提出了13点具体改进措施     

自学考试实践环节考核模式的改革与探讨——以江西省为例

自学考试实践环节考核是检验自学考试生学习的理论知识应用于实践中的标准,是自学考试的重要组成部分。本文结合江西省自学考试实践性环节考核中存在的问题分析,从改革专业课程体系、依托建立省级学习支持服务中心、加强过程学习和建立考评机制等方面提出提升质量的对策与建议。     

Effect of support calcination temperature on the Ru-Ce-B/ZrO_2 catalysts for benzene selective hydrogenation to cyclohexene

The effect of support calcination temperature on the benzene selective hydrogenation performance of the Ru-Ce-B/ZrO2 catalysts was investigated.It was found that with increasing calcination temperature,the surface area decreased,on the contrary,the pore size and the amount of monoclinic phase increased.With increasing support calcination temperature,the activity of the catalyst roughly decreased and cyclohexene selectivity increased.The activity decreased due to the decrease of the surface areas.The increase of the cyclohexene selectivity was correlated not only with the decrease of the surface areas but also with the increase of monoclinic phases,rich in surface hydroxyl,and the enlarged pore size of zirconia.This suggests the monoclinic zirconia with a medium surface area,rather than a big one,and a mesoporous structure,even including some macropores,is an ideal support of the catalyst for benzene selective hydrogenation.     

决策树ID3算法的改进及其应用

分析了分类规则挖掘方法中决策树的原理,提出了ID3算法的改进算法,并将优化改进后的算法应用到营销决策支持系统中。     

The state of play of blockchain technology in the financial services sector: A systematic literature review

The modern trends of digitalization have completely transformed and reshaped business practices, whole businesses, and even a number of industries. Blockchain technology is believed to be the latest advancement in industries such as the financial sector, where trust is of prime significance. Blockchain technology is a decentralized and coded security system which provides the capability for new digital services and platforms to be created through this emerging technology. This research presents a systematic review of scholarly articles on blockchain technology in the financial sector. We commenced by considering 227 articles and subsequently filtered this list down to 87 articles. From this, we present a classification framework that has three dimensions: blockchain-enabled financial benefits, challenges, and functionality. This research identifies implications for future research and practice within the blockchain paradigm.     

高校贫困生的社会支持网络：现状与对策

在解决高校贫困生问题的过程中，党和政府、学校、社会、贫困生的家庭等已经作出诸多努力，初步形成了高校贫困生的社会支持网络。社会支持网络在解决贫困生的经济和情感问题方面发挥着重要的作用，但还存在支持力度不足、忽视负功能、网络之间缺乏联系等问题。为了科学有效地解决贫困生的问题，充分发挥社会网络的支持作用。必须构建新的主体多元化、内容系统化、机构专门化、方法专业化的高校贫困的社会支持网络，在构建新网络的过程中，要坚持继承和发展的态度，采取维持、强化、放弃、改革、创新等科学的方法和手段。