An algorithmic approach to construct D-optimal saturated designs for logistic model

In this paper, locally D-optimal saturated designs for a logistic model with one and two continuous input variables have been constructed by modifying the famous Fedorov exchange algorithm. A saturated design not only ensures the minimum number of runs in the design but also simplifies the row exchange computation. The basic idea is to exchange a design point with a point from the design space. The algorithm performs the best row exchange between design points and points form a candidate set representing the design space. Naturally, the resultant designs depend on the candidate set. For gain in precision, intuitively a candidate set with a larger number of points and the low discrepancy is desirable, but it increases the computational cost. Apart from the modification in row exchange computation, we propose implementing the algorithm in two stages. Initially, construct a design with a candidate set of affordable size and then later generate a new candidate set around the points of design searched in the former stage. In order to validate the optimality of constructed designs, we have used the general equivalence theorem. Algorithms for the construction of optimal designs have been implemented by developing suitable codes in R.     

生产者货币计价决定因素的实证研究

利用12个发达国家和发展中国家的非平衡面板样本数据,对微观、宏观和其他因素对生产者货币计价(PCP)的影响进行实证研究,指出经济规模、市场份额、金融市场的发达程度、币值的对内稳定性和产品差异化程度是最主要的影响因素,而出口商的谈判能力、币值的对外稳定性等因素也对PCP的选择有一定影响。根据实证检验结果,对人民币作为贸易计价货币的条件进行评估,发现其优势在于我国的经济规模、出口商的市场份额及其谈判能力以及人民币汇率的相对稳定性; 劣势在于相对落后的金融市场、不可预期性较大的通货膨胀水平以及产品的差异化程度。     

Tilting at windmills: a cynical assemblage of the crises of knowledge

The essay offers one piece of a larger conjunctural analysis, in an effort to contribute to a better story of the contemporary organic crisis. It considers three elements of the complexity of the ‘crises’ of knowledge: First, it explores the increasingly felt social perception that knowledge (and the forms of authority that accompany it) has become less determined and determining, less identifiable, less effective, more troubled. It argues that one must think about these developments historically and contextually, rather than going along with the panic that has surrounded their increasing visibility in recent political events. Second, it considers some of the attacks on the university as well as some of the recent changes in the political economy and institutional forms of the academy. Finally, it argues that academics have failed to examine their own contributions to the crises of knowledge, failed to consider the ways their own cultures and practices can be located within rather than against the crises of knowledge.     

谈校园音乐剧活动对大学生成长所起的作用

具有多元化特征的音乐剧，对培养创新人才及培养大学生完美的人格有着积极的教育作用．     

从态度系统探讨英语学术书评的评价策略

以评价理论为框架,选取权威的语言学杂志学术5篇书评为语料,从态度系统的视角对英语学术书评的评价策略进行分析。经统计发现学术书评中蕴含了大量表态度意义资源,但其子系统分布不均匀,其中表情感、判定和鉴别意义的语言资源占表态度意义总资源的比例。因此,学术书评作者通过使用较多的鉴赏资源,判定资源来实现其评论客观公正的意图。     

Communication and information exchange among SMEs and their local environment

Abstract

In this article the results from a Swedish pilot study in the project Arena for Sustainable Innovative Development of small and medium-sized enterprises is presented. The project in a whole aims to create and test a model for collaboration and sustainable development among small- and medium-sized enterprises (SMEs) in local areas. The research question in this article is delimited to issues concerning use of ICT, information exchange and communication among the interested parties. The pilot study was accomplished in a qualitative and explorative way with semi-structured interviews. As a result of the study some questions are identified as urgent to further investigate.     

凌纯声先生的赫哲族田野调查--从现代中国实地调查研究的学术背景谈起

凌纯声先生1930年的赫哲族田野调查是中国民族学和人类学界一次科学的实地调查,具有开创性意义.本文从现代中国提倡和注重实地调查研究的学术背景来审视这次田野调查.上世纪20年代后,中国人文社会科学逐渐从吸收传播"西学"向研究中国历史、社会、民族文化转变,朝着"本土化"的方向努力,从而形成了提倡实地调查研究的学术风气,而且中国学者进行了多次学术实践.这次田野调查与那个时代的学术背景密切相关,并且体现出其学术背景.本文还论述了蔡元培先生与这次田野调查的密切关系.     

彝族社会中"尔普"形式的变迁

凉山彝族社会中的“尔普”(份子钱 )是一种礼物交换形式。对“尔普”的研究和分析 ,可有助于人们理解凉山彝族社会。“尔普”本来是维系彝族传统社会宗族内部亲属组织的纽带 ,由于文化变迁的原因 ,后来发展出了跨宗族的“尔普”新形式 ,又由于族群互动的原因 ,还产生了跨越族群的“尔普”形式。“尔普”形式的变迁是族群互动下的一种文化变迁形式 ,其动力来源于彝、汉两族的互动关系。彝族社会中“尔普”的变迁形式是人类学关于族群互动下的文化变迁理论的鲜活事例。     

继嗣与交换:地域社会的构成--对摩哈苴彝村的历史人类学分析

关于地域社会的构成,宗族继嗣理论注重宗族裂变的作用,社会交换理论则强调"女性交换"的意义.本文通过对摩哈苴彝村口述史材料的分析,揭示了如下两个基本事实第一,宗族裂变分支的散布与婚姻联盟的范围在地域上可以是吻合的,由此消除了继嗣理论与交换理论的对立;第二,在父系社会中,不仅存在着"男性的继嗣"与"女性的交换",而且也存在着"女性的继嗣"与"男性的交换",后者亦为地域社会构成的重要路径.     

中日音乐文化交流的历史渊源

本文追溯了中日音乐文化交流的历史渊源,认为两国历史上音乐文化的交流是相互的,友好的,促进了两国音乐文化的发展。