Optimal dividend strategies in a double compound poisson risk process

In this paper, we consider a double compound Poisson risk model involving two independent classes ofinsurance risks with a threshold dividend strategy. We derived the integro-differential equations (IDE) with certain boundary conditions for the present value of dividends until ruin. When the claims from both classes are exponentially distributed, we show that the threshold dividend strategy is an optimal dividend strategy.     

关于企业环境治理中管理作用的思考

随着社会的飞速发展,人们对资源的需求日益增多,面对资源过度开发的现象,如何保持经济发展与环境保护的平衡成为当前必须面对的问题。探讨了改善内部因素的方法,提出了完善外部政策环境的建议,包括要鼓励和吸引多方成为环保主体、政策要协调一致并前后统一、政策执行时要及时监督、环保规章制度及政策要有多元化执行思路等。     

关于全局渐近稳定性的两个定理

本文运用多个Liapunov函数研究部分变元的方法,得到两个关于非自治系统全局渐近稳定性的判别准则,推广了有关文献的相关结果。     

“苦茶庵法脉”的散文美学特征

"苦茶庵法脉"作为周作人最为重要的散文美学思想凝结,其特点表现为对意象的精心营造、对革命的疏离与对平凡生活的关照,以及由此而营造的独特的意境。其后的继承者们,攫取一二点,遂成文学史上或隐或现的"周作人传统"。     

世纪之交官场叙事勃兴的文化阐释

作为一种小说潮流的官场叙事，在很大程度上是受文学场域众多因素的合力所催生。从权力文化层面来说，当政治伦理的崇高性遭致市侩主义以及个人利益的围逼，某些不良的官场风气导致公信力不断下降时，世俗性话语会自然地消解这种异化的权力关系。从消费文化层面来说，求官保位以及了解官场生态的心理，主流媒体没有见诸公众的“坊间传闻”等话语在某种程度投合了大多读者的阅读期待。从思想文化层面来看，官场叙事在提供反腐与呈现上层建筑政党理想等叙事功能的同时，一定程度上也呈现权力非公共使用时的世俗化生存状态。官场叙事从权力、欲望对人和人性造成裂变的形而上角度传达出对转型期社会文化现象的体察与洞见。     

差比序列视角下“不是A但是／只是／而是B”之比较

语言中的某些词或词组可以形成一个差比序列。将不同差比序列项分别嵌入“不是A但是／只是／而是B”框架，对其嵌入条件、语义内涵和否定类别分别加以比较，可从新的视角发现这三个框架深层次的区别与联系。     

Amyloid precursor protein and its homologues: a family of proteolysis-dependent receptors

The Alzheimer’s amyloid precursor protein (APP) belongs to a conserved gene family that also includes the mammalian APLP1 and APLP2, the Drosophila APPL, and the C. elegans APL-1. The biological function of APP is still not fully clear. However, it is known that the APP family proteins have redundant and partly overlapping functions, which demonstrates the importance of studying all APP family members to gain a more complete picture. When APP was first cloned, it was speculated that it could function as a receptor. This theory has been further substantiated by studies showing that APP and its homologues bind both extracellular ligands and intracellular adaptor proteins. The APP family proteins undergo regulated intramembrane proteolysis (RIP), generating secreted and cytoplasmic fragments that have been ascribed different functions. In this review, we will discuss the APP family with focus on biological functions, binding partners, and regulated processing.     

“九龄风度”的内涵与启示

"九龄风度"记载着张九龄历史功绩、刚直气节和政治远见;"九龄风度"的内涵包括才华超群、远见卓识、心系天下安危、为国家尽责、对百姓尽心而笑看生死的风采,以及洒脱豁达、刚直不阿、敢言直谏却淡泊谦让的气度。张九龄以蕴藉、超逸、高雅的文采开山水田园诗文之先河而被推崇为当时的文坛领袖。他超逸、高雅的文学内涵丰富了"九龄风度"。倡议藉"九龄风度"弘扬客家文化,凝聚世界"客家商",促进韶关经济发展。     

《齐己诗集校注》中几个人物辩证

对《齐己诗集校注》中的四首诗中涉及到的人物＂丞相＂、＂关令＂、＂马辨＂、＂栖公＂、＂徐员外＂注释进行辩证。指出＂丞相家＂非马殷家,而是唐相张九龄家;＂关令＂,非谓苻坚,而＂马辨＂非为人物,用的是《公孙龙子》中＂白马非马＂典故;＂栖公＂非谓栖隐,而是齐己的另一诗人僧友栖蟾;＂徐员外＂非不详其人,而是马楚国天策府学士徐仲雅。     

县级图书馆全民读书活动的实践与思考——以罗田县图书馆为例

介绍了罗田县图书馆开展的一系列全民读书活动，指出图书馆应在全民读书活动中发挥主导作用，辅导全民有效阅读。