On the preservation of copula structure under truncation

The author characterizes the copula associated with the bivariate survival model of Clayton (1978) as the only absolutely continuous copula that is preserved under bivariate truncation.     

佛山目标产业体系的抉择与逼近──兼论利用外资优化佛山产业结构

分析了区域裂变后的佛山产业体系发展的现状，并结合佛山未来的经济发展战略，勾勒出佛山目标产业体系，同时提出了以外资的利用作为优化佛山产业体系动力源的对策思路。     

The ecosystem blueprint: How firms shape the design of an ecosystem according to the surrounding conditions

Ecosystems are formed by organisations that jointly create a value proposition that a single firm could not create in isolation. To deliver this value proposition, the partners need a focal firm, the orchestrator, to be align them towards the joint value proposition. Thus, how orchestrators design the alignment structure of an ecosystem is at the very heart of the ecosystem concept – yet it has not been sufficiently addressed by extant research. This is all the more true for the question of how the design of an ecosystem is shaped depending on surrounding conditions. This paper applies a qualitative study with ten cases and, based on the attention-based view of the firm, contributes to research on ecosystems in several ways. First, it explains which ecosystem designs are beneficial under which conditions. Second, it elucidates the structure and activities within ecosystems and shows that start-ups can be just as good ecosystem orchestrators as incumbents. Third, it explains the circumstances under which single vs. multi orchestrator ecosystems occur. Fourth, it presents the conditions when incumbents or start-ups make better orchestrators. Finally, it is among the first studies to apply the attention-based view to business ecosystems, and shows that doing so yields intriguing insights into this emerging field of research.     

国际公法对弱者的保护及其完善

鉴于弱者保护已成为国际社会普遍关注的热点问题,但时下无论是国内立法还是社会各界对弱者的特殊保护都不同程度地存在一些认识问题或实际问题,依照国际社会公认的保护弱者的国际公约,在对其一系列原则、制度和规则予以详细阐述的基础上,提出进一步完善该方面国际国内立法的思考和建议。     

世纪之交屈原研究的回顾和展望──'99岳阳两湖屈原与楚文化研讨会综述

综述了参与’99湖南岳阳两湖屈原与楚文化学术研讨会的专家学者的主要研究成果,介绍了有关世纪之交屈原研究的回顾与展望方面的成果。     

陕西创建计划生育工作“综合服务县”有关理论问题的思考

本文结合陕西省提出和展开的“创建计划生育综合服务县”活动 ,讨论了“综合服务”的概念和背景。指出“综合服务县”是“综合服务”与“综合治理”的统一,是“三为主”、“三结合”的延伸,顺应了以人为中心的可持续发展潮流 ,标志着陕西计划生育工作进入新阶段     

试论明朝在越南的统治

明朝在 140 6年 (永乐四年 )派兵占领越南 (安南 ) ,设置郡县 ,宣德二年 (142 7年 )撤出。在 2 0多年的统治中 ,明政府通过在政治、经济、军事、文化等各方面采取一系列措施来巩固在越南的统治。尽管这些措施曾经给越南人民带来了很大损失 ,但对稳定当时安南的社会秩序和发展生产 ,缓和阶级矛盾起到了重要作用。两国经贸往来和文化交流得到加强 ,也更加有助于两国人民之间的相互了解和增进双方的友谊。     

Theory Trimming

This paper attempts to show that the “Theory Trimming” technique makes little contribution to theory in sociology. A brief history of the technique is given, and several key assertions of its proponents are abstracted. These assertions are shown to be highly questionable. The general alternative to Theory Trimming is shown, and the relationship between Theory Trimming and more general orientations to research is discussed.     

Seasonal forcing on the dynamics ofClethrionomys rufocanus: Modeling geographic gradients in population dynamics

We interpret gradients in population dynamics of the gray-sided vole from the southwestern part of the island of Hokkaido to its northeastern part within the framework of a phenomenological model involving the relative length of summer and winter. In Hokkaido, as in other northern regions, both spring and fall is considered as short transition periods between the two main seasons — summer (the primary breeding season) and winter (the non-reproductive or secondary breeding season). We show that the geographic transition in dynamics may be understood as the combined consequence of different patterns of density-dependence during summer and winter, and geographically varying season lengths. Differences are shown to exist between summer and winter with respect to strength of density-dependence. Direct density-dependence, in particular, is stronger during winter than during summer. A model is presented to show how relative lengths of seasons can induce both stable and periodically fluctuating population dynamics. The results are compared and contrasted with what is otherwise known about the gradient in rodent dynamics in Fennoscandia.     

用另一只眼睛看红楼之谜——论秦可卿的生与死

文章用全新的视角,提出全新的观点。从书中提供的秦可卿两处出生身世和秦可卿卧室摆设为突破口,推断秦可卿乃雍正之女。把“秦可卿淫丧天香楼”和“变生不测凤姐泼醋”两个因淫而上吊的故事联系起来,揭示了天香楼事件真相,从而解决了书中两个大谜。随之,关于秦可卿的判词曲文,“秦可卿死封龙禁尉”、“张太医论病细穷源”等谜也迎刃而解。