On a robustness property of PBIBD

In this paper we study a robustness property of partially balanced incomplete block designs based on association schemes with m classes (PBIBD(m)) against the unavailability of data in the sense that, when any t (a positive integer) observations are unavailable the design remains connected w.r.t. treatment. We characterize the robustness property of PBIBD(m) completely for m=2 and partially for m=3.     

General upper bound for the number of blocks having a given number of treatments common with a given block

The purpose of this paper is systematically to derive the general upper bound for the number of blocks having a given number of treatments common with a given block of certain incomplete block designs. The approach adopted here is based on the spectral decomposition of N′N for the incidence matrix N of a design, where N' is the transpose of the matrix N. This approach will lead us to upper bounds for incomplete block designs, in particular for a large number of partially balanced incomplete block (PBIB) designs, which are not covered with the standard approach (Shah 1964, 1966), Kapadia (1966)) of using well known relations between blocks of the designs and their association schemes. Several results concerning block structure of block designs are also derived from the main theorem. Finally, further generalizations of the main theorem are discussed with some illustrations.     

铭贤学校“训育”的历史审视

训育在五四运动之后,引起教育界的广泛关注。但是其从理论到实践的展开则是在南京国民政府成立之后。南京国民政府为加强对学校教育的领导和控制,在各级各类学校实施训育。铭贤学校是中西文化交融的产物,是中国近代教育的一个缩影,在长期的办学历史中形成了独具特色的"训育"体系。铭贤学校本着"学以事人"的校训,拟定"敦品励行,急公好义"为"训育"的方针,在内容上注重精神、德行、体格、生活、服务等训练,在"训育"的过程中凸显了以情育人、以制束人和以义励人等特点,这些方面都始终体现着中国传统儒学思想与西方文明的交融。     

大力开发我国篮球市场

篮球市场开发水平是职业篮球发展的重要标志，也是关系到职业篮球俱乐部生存和发展的重要环节。本文结合NBA经营实践和CBA发展现状，对开发我国篮球市场进行了分析，并提出了具体措施。     

从朋党到党社——明代党争之浅见

明代党争之盛行始自万历,其后才有东林、阉党之争,乃至复社运动。此前洪武、永乐所谓诸党,即以胡蓝之案、建文遗臣为“奸党”,乃是出于维护皇权专制需要的加罪之词,其实并无朋党之实。明代朋党之兴起,实因明中后期皇权专制之衰落,士大夫以结党而求发展势力以自固。弘治二年(1489年)两京御史案以治朋党为立案之本,当为明代党争之始,这在一定程度上遏制了朋党的势力。万历时期党争勃兴,此后朋党政治渐成明廷政治主流。此时兴起的东林党之所以不同于中国历史上的传统朋党,在于其独具的政治主张而提出士大夫的社会责任,它虽未形成社会改革的政治主张,但反对政治腐败和宦官当政的立场还是得到民众的支持。东林党的意义不仅在于他们的政治主张,更在于其所形成的士大夫群体这一政治集团。这种情况到复社时期更加突出,复社的立场与东林党一脉相承,但复社异于东林党之处则在于他们的组织方法与规程,因此崇祯五年复社虎丘大会才会盛况空前。复社运动影响深远,中国近代党会实与明末的结社有着密不可分的关系。     

Dependence structure of generalized order statistics

In this article, simple expressions for marginal density functions of multiply censored generalized order statistics based on continuous distribution functions are obtained. Moreover, it is shown that generalized order statistics are multivariate totally positive and, thus, associated. This property is applied to show that regressions of generalized order statistics are nondecreasing under weak conditions.     

Association Measures for Bivariate Lifetime Data

Reversed hazard rates are found to be very useful in survival and reliability studies especially in cases of parallel systems and left-censored data. We introduce four association measures using reversed hazard rates and mean waiting time. We then study the properties of these measures. Nonparametric estimators of these measures are developed. Finally, the application of these measures is illustrated with two real life data sets.     

基于影响力分析的高校校友会微博管理探究

随着"第五媒体"新媒体技术的发展,基于新媒体平台的校友工作宣传及校友的联络受到各高校的高度重视。为满足校友多元化获取信息的需求,国内各高校校友会纷纷开设了微博、微信,作为校友会与校友、在校学生以及社会交流、沟通与互动的重要平台。本文基于对华南理工大学等高校校友会官方微博影响力的分析,剖析校友会微博管理中存在的问题并提出相应的改进策略,以促进高校校友工作的发展。     

晋商会馆、公所与近代山西商会

明清时期的晋商会馆和公所是近代山西商会的间接前身,近代山西商会的成立,标志着山西近代资产阶级商业团体的出现,对山西近代工商业的发展、对民族资产阶级的成长,对社会变革都起到了一定的推动作用。     

论解放前包头地区的社团活动

近代以来,包头地区出现了各种类型的社团,可分为:秘密结社、慈善救济团体、革命团体、日伪反动团体等。这些社团的出现整体上是受近代中国社会变革发展的大环境影响所致。包头地区的社团具有近代以来全国各地社团的共同特点,同时也具有内蒙古地区的区域特征。