On Bayesian sample size determination

Three Bayesian methods are considered for the determination of sample sizes for sampling from the Laplace distribution – the distribution of time between rare events – with a normal prior. These methods are applied to the sizing of aircraft mid-air collisions in a navigation system or large flight path deviations of aircraft in air traffic management scenarios. A computer program handles all computations and gives a good insight about the best suggested method.     

Differential diet breadths and species coexistence in leafroller-hunting eumenid wasps

Summary There are, at least, three possible ways in which similar species coexist; resource partitioning, interference competition, and exploitation competition. Here, I investigated which way contributed to the coexistence of leafroller-hunting eumenid wasp species. Resource partitioning and, in addition, differential diet breadths proved to promote species coexistence in this case. First, I analyze the prey records and diet overlap of four eumenid species in a local area. The larger two eumenids hunted similar-sized prey items and had similar potential taxonomic prey uses. But the diet breadth of the subsocial eumenid was much wider than that of the solitary one. As a result, the diet overlap between the two large eumenids decreased. This was because the solitary eumenid attend repeatedly to the same hunting site inhabited by one abundant prey species, while the subsocial one made random hunting. On the other hand, the two medium-sized eumenids partitioned resources according to prey size. Secondly, I related these results to prey choice by several other species of eumenid obtained from literature sources. Ten Japanese common eumenids were divided into four groups according to their prey size. In each of the four groups, 2 to 3 wasp species differentiated the habitat (1 group) or coexisted by means of differential diet breadths (parallel with differential sociality, 2 groups). Contribution to the ecological studies of the eumenid wasps. III.     

Male mating behavior in relation to spermatophore transfer in the white cabbage butterfly

The lifetime mating frequency of female butterflies is believed tobe dependent on the reproductive status of the males which they have mated. This report assesses those status usingPieris rapae L. Multiple mating females mated males with a short time interval after the last mating or males with many mating records. Such males, like small ones, produced small spermatophores during copulation, which may have resulted in high mating frequency of those females. The males with short time interval after the last mating or those with many mating records also showed a long mating duration. Alternative interpretations of the adaptive significance of this behavior for males are discussed.     

基于VB6.0的高校大学生成绩管理系统的开发

随着我国高教改革步伐的进一步加快,传统的学生成绩管理观念、管理方式和管理体制显现出许多不足,本系统以计算机技术为手段,以成绩管理的实际需要为依据,采用面向对象的程序设计知识,以人工智能设计思想为指导,针对我校在成绩管理中存在的诸多问题,设计开发出一套智能化的高校大学生成绩管理系统。系统以Visual Bas-ic6.0语言为开发平台,设计了包括信息录入模块、信息查询模块、信息浏览模块、信息打印模块、系统帮助模块等五个模块的设计环境。系统界面友好,用户在使用该系统时,很快就能掌握系统的使用方法。     

《史记》与中国史学的实录传统

《史记》在汉代被誉为"实录"之后,历代史家从各个方面探讨了《史记》实录的特征。在此过程中,"实录"的内涵得到不断的充实和发展,使实录成为史家史料运用、历史评价和文字表述等各方面最基本的标准,也使史家思想和学风中融入了实录精神。许多优秀的历史撰述成果由此诞生,从而使实录精神成为中国史学的一个优良传统,推动中国史学不断向着寻求真理、走向真理的方向前进。     

西藏传统文化典籍编辑特点

生活在青藏高原上的藏族人民创造了丰富多彩的藏族文化。本文从三个方面探讨了西藏传统文化典籍的编辑特点和编辑体制,从中反映出编辑活动在西藏传统文化典籍中的重要性。     

北京志鉴应该充分体现首都特色

北京作为中国的首都 ,各志鉴的编纂应该充分体现首都特色 ,以切实保证志书质量并广泛适应社会的需要。本文主要阐述在北京各志鉴中如何突出首都特色这一关键问题 ,并对北京修志工作中存在的现实问题提出一些建议和具体的改进方法。     

南汉史料史籍述评

南汉史的文献资料比较零散 ,大体上以正史及《资治通鉴》、《续资治通鉴长编》记载为主 ,杂史、笔记及其他文献和碑刻中也有若干资料。清代学者搜罗南汉资料不遗余力 ,编纂几部南汉专史。这些著作提供了整理资料的线索 ,对研究南汉史具有重要的参考价值     

《宁波市志》序三篇

宁波是我国向外开放历史最早的沿海港口城市；宁波又是我国人文荟萃、源远流长的历史文化名城．作为浙江望郡，历史上宁波就向以佳志迭出而著称于世，宋元时的《四明六志》就已是我国古代方志中的翘楚，民国的《郑县通志》又是当时规模最大的地方志和最后一志．如今，孜孜七载而编成的新中国第一部《宁波市志》，煌煌四百万言巨著，就是在继承前人传统的基础上后来居上，实为中国方志中一新开的奇苑。     

高校院系教师教学档案管理初探

针对长期以来高等学校二级院系缺乏一个科学合理可行的教师教学档案管理体系的现状,阐述了在教育部对本科教学评估的指标体系指导下,运用档案管理学的原理和方法建立的高等学校院系教师教学档案管理体系,及其应用于高等学校档案管理中的实践价值。