“科教兴村”与农村现代化建设

"科教兴村"是率先实现农业现代化的重要手段科教兴村计划的实施,对增加农产品科技含量、提高农业科技贡献份额、促进"高产、优质、高效"农业的发展、加快传统农业向现代农业转变等具有重要意义.农民素质直接影响到农业科技成果的消化吸收,"科教兴村"的关键是提高农民素质.现代农业是科技型农业,农民增收依托于农业科技的创新推广,农业科技推广是"科教兴村"的重点.科学制定实施方案与必要的物质资金支持是"科教兴村"的保障.     

吴佩孚晚年寓居四川始末

192 7年吴佩孚在北伐军的沉重打击下兵败入川 ,企图凭借与四川军人旧时的从属关系和蜀地天险重聚力量东山再起 ,他在四川几度挂起“孚威上将军”、“讨贼联军总部”等旗帜 ,成立“大帅部” ,准备逐鹿中原 ,组织新政府。但南京国民政府蒋介石集团对吴佩孚在四川的举动密切关注 ,除下令通缉讨伐外 ,还策动四川驱吴 ,这就使得四川军人分裂为两大阵营 ,并连续发生了三次较大战乱 ,给四川政局带来了影响。吴佩孚最终因其支持力量战败出山计划落空 ,于 1931年离开四川     

Online coupon consumption problem

Nowadays, it is popular that the dealer makes profits by selling a kind of discount coupons, which can be used as money to purchase commodities with total cost less than or equal to the face value of the coupon. We can purchase a coupon at a price of 0<s≤1 times its face value and the number of potential purchasable coupons is a given integer l. The customer has the option to buy the goods by cash completely or by a discount coupon. However, each piece of goods can only use one coupon and the coupon used must have enough balance for the goods. The objective is to minimize the total cost for purchasing all the goods. In this paper, we reduce the problem to a special bin packing model. We consider the online problems for all 0<s≤1 and 1≤l≤∞. We present optimal online algorithms for all 0<s≤1 when l=∞ and l=1. For 2≤l<∞, we give both a lower bound and an algorithm, and show the algorithm is optimal for l=2. A preliminary version of this paper appeared in the proceedings of the 1st International Symposium on Combinatorics, Algorithms, Probabilistic and Experimental Methodologies, Lecture Notes in Computer Science. Y. Jiang supported by Natural Science Foundation of Zhejiang Province (Y605316). Z. Tan supported by Natural Science Foundation of China (10671177, 60021201).     

执政有效性理论的梳理和分析

政治有效性是从西方政治学引入的一个概念.本文通过对政治有效性的内涵、危机与合法性的关系等理论进行相应的梳理、分析,试图引起学界对这一问题的进一步关注.     

苏联对台湾问题的历史影响(20世纪40年代末～50年代初)

从苏联作为一个社会主义大国，率先承认中华人民共和国的 合法地位，以强硬的态度，要求联合国安理会作出开除国民党集团的决议朝鲜战争对中苏 两国政治联盟的考验等几个方面，分析苏联因素对中国台湾问题的影响。     

关于高速铁路调度指挥系统稳定性的探讨

探讨了高速铁路调度所内调度系统的信息传递过程，采用控制论中系统方块图进行描述，计算出高铁调度系统的信息传递函数，然后求得调度系统的特征方程和特征根，通过分析特征根是否均有负实部来判断系统的稳定性。提出了描述调度系统控制精确度的稳态误差的计算方法。为今后高速铁路调度系统的稳定性的研究有所启发。     

公共危机状态下的大众传媒与社会控制

在现代信息社会中，作为次级系统的大众传媒通过影响环境认知、促成社会共识、引导社会舆论，对整个社会系统产生能动作用。但在公共危机状态下，大众传媒的“双刃剑”属性相当明显，既有社会控制的正功能，也存在负效应。因此，需注意探索和掌握公共危机管理中的信息传播规律，加强对大众传媒的积极控制，提升和完善社会控制策略，维护社会秩序，凝聚社会力量，为战胜危机营造有利的社会环境。     

《文心雕龙·徵圣》“装点门面”说辩

《徵圣》具有独立的价值,它提出了文章的创作主体和以圣人之文为标准的创作准则。将《徵圣》与《宗经》进行比较,从逻辑上得出《徵圣》为《宗经》之前提,二者内容相似但论述重点有所不同。另外,《徵圣》提出的为文标准与刘勰于此篇所提的"体要"观在全书也得到了由始而终的贯彻。因此,纪昀评价《徵圣》的"装点门面"说有其不当之处。     

元代汉人世侯行唐邸氏家族

行唐邸氏是元代重要的汉人世侯之一。学界对其虽有一些研究,然并无专文对其进行全面探讨。该家族从第三代邸显常、邸顺、邸常、邸琮归顺蒙古开始显世,在蒙古对金、宋战争中立下赫赫战功,并因此受到封赏。从此便以邸顺支受封并承袭归德万户、邸琮支受封并承袭颍州万户传其世系。研究表明:行唐邸氏在战功、文治上的作为,受蒙古统治者重视的程度及其在元代的显赫地位,都足以将其归入"大藩"之列。     

An online copy number variant detection method for short sequencing reads

The availability of the next generation sequencing (NGS) technology in today's biomedical research has provided new opportunities in scientific discovery of genetic information. The high-throughput NGS technology, especially DNA-seq, is particularly useful in profiling a genome for the analysis of DNA copy number variants (CNVs). The read count (RC) data resulting from NGS technology are massive and information rich. How to exploit the RC data for accurate CNV detection has become a computational and statistical challenge. We provide a statistical online change point method to help detect CNVs in the sequencing RC data in this paper. This method uses the idea of online searching for change point (or breakpoint) with a Markov chain assumption on the breakpoints loci and an iterative computing process via a Bayesian framework. We illustrate that an online change-point detection method is particularly suitable for identifying CNVs in the RC data. The algorithm is applied to the publicly available NCI-H2347 lung cancer cell line sequencing reads data for locating the breakpoints. Extensive simulation studies have been carried out and results show the good behavior of the proposed algorithm. The algorithm is implemented in R and the codes are available upon request.