云南边疆少数民族间的"康吧"经济交往模式:理论与实证分析

"康吧"交往是纳西族与傈僳族、藏族之间一种独特而历史悠久的物质交换模式,它不符合理性选择的逻辑却能世代延续至今,同时,不同民族间的"康吧"交往又存在差异。本文借鉴西方主流理论对这种古老的交往模式进行分析,从经济学、社会学、人类学的多重理论角度出发,采用访谈、观察与定量分析相结合的研究方法,对上述现象进行了分析。研究结果表明:(1)资源依赖性、信任和互惠原则对"康吧"交往的延续至关重要;(2)货币市场和投机行为的出现导致"康吧"交往走向衰落,但情感互惠和资源互补使之至今存在;(3)自然资源条件、资源互补程度、社会历史背景和文化因素,对交往模式的差异都有重要影响作用。     

直接消耗系数的组合更新法研究

 本文提出了一种更新直接消耗系数的新方法,即将修正RAS法与修正交叉熵法的更新结果进行平均的组合更新法。因为电力数据具有相对准确与及时的特点,所以本文首先提出了结合电力数据的修正RAS法与修正交叉熵法,在此基础上建立了组合更新法的数学模型,然后分别以三个实验比较了修正RAS法、修正交叉熵法以及组合更新法的效果。结果表明本组合更新法的更新精度比前两种方法都高,它是一种合理有效的更新方法。     

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).     

动态需求下高峰负荷定价模型研究

针对Ｍａｃｈａｅｌ．Ｒ关于动态需求下高峰负荷定价过于理想化假设的问题，建立了新的调控定价模型，并进行了具体的分析，得到不同阶段应采取不同的定价策略，培育和引导了消费市场，由此深化了Ｍａｃｈａｅｌ．Ｒ的结论。     

浅谈国共关系中的几个提法

抗战胜利后 ,国民党抢夺抗战胜利果实的“抢夺”应称为“独占”。台湾回归祖国的“回归”用法不当 ,台湾不存在“回归”问题 ,应改称“统一”等。国民党政权在大陆覆灭的标志不应是 1949年4月 2 3日南京解放 ,而应是 1949年 10月 1日中华人民共和国成立     

沙里看世界 袖中笼大千——笔记袖珍体小小说写作艺术初探

笔记袖珍体小小说是我国小小说园地中的一朵奇葩。现着重从取材的典型性、构思的灵巧性、手法的夸张性和叙述的简洁性四个方面 ,对其写作艺术作初步探讨     

词义引申的研究视角初探

汉语词义研究是当代词汇学研究的核心课题 ,其中关于词义引申问题在语言学界呈现出“横看成岭侧成峰”的现象。本文认为 ,这一现象的产生是由于词义引申的研究视角不同。这些研究视角可概括为 :文化学视角、心理学视角、发生学视角、逻辑学视角、词汇学视角     

市场经济条件下对大学生进行革命传统教育的现状分析

市场经济对大学生的革命传统教育造成严重冲击,大学生中出现了各种道德和价值观念的偏移。究其原因,既有客观原因,也有大学生的主观原因。对大学生存在的这些问题,高校政治理论工作者责无旁贷。     

On Tiku's robust procedure — a Bayesian insight

Tiku's robust procedure for testing mean and variance from nonnormal universe is examined from the Bayesian viewpoint. The posterior distribution of the scale parameter is derived and then approximated by a Laguerre polynomial expansion while the posterior distribution of the location parameter is approximated by a linear combination of t-distributions. For the example with Darwin's data, the approximations appear to be extremely good.     

Narrowing the gap: the educational achievements of the Malay community in Singapore

This paper discusses the educational gap between the Malay community and other ethnic communities in Singapore. Using official statistics from 1980 to 2004, the paper compares the educational achievements of the Malay community with other ethnic communities in Singapore. The paper points out that, while the Malay students have made significant improvements in their educational achievements over the years, they are still lagging behind the other ethnic communities in Singapore. Three key educational challenges faced by the Malay community and the responses to these challenges are discussed in this paper. The paper recommends that a framework should be introduced to the Malay students in Singapore to integrate secular and religious subjects within an Islamic conception of knowledge.