Simulation of Balakrishnan skew-normal order statistics

ABSTRACT

The novel Balakrishnan skew-normal distribution introduced in 2008 has received considerable interest. Here, we derive stochastic representations for simulating order statistics of the novel Balakrishnan skew-normal distribution. The resulting algorithms are more efficient than the ordinary sorting algorithm.     

Bivariate short distributions

The method of MML estimation for a univariate normal (Tiku 1967, 1973) is extended to a bivariate normal population. Thus, a theoretical foundation is given to the robust correlation coefficient proposed by Tiku and Balakrishnan (1986).     

Modern Myths

This article outlines some basic characteristics of modern myths that fundamentally differ from the traditional myths on which most myth research is based, namely: their relation to time, and their relation to themselves. The article also takes a closer look at the implications these differences have for our present state of Being. The aim is not to offer yet another variation on the academic discussion of myths, but rather to provide a starting point for further discussion about the peculiarities and impacts pertaining to modern myths.     

信息化、新媒体与景观装置艺术

高度信息化的都市综合了多元媒介与意识形态集流，以信息传媒、实时通讯、网络平台、高速交通以及贸易、金融、权利、习俗、情感集于一体，这些隐藏于游牧与流通中的公共性“结构”，正促使都市公共空间趋向信息化、多元化、非物质化、开放性等方式存在：交互、极速与暂存已成为信息空间之关键词，它不再局限于众多个体集结、流动的“现实性”场所，而是转向一个可以拓展人们综合感知、境遇体验和虚拟沉浸的“真实性”空间。     

江西寻乌地区蜻蜓调查初报

1996－1007年在江西省寻乌山区捕获蜻蜒26种，分隶6科、20属。其中20种是江西省新记录。     

Final report of the Color Additive Scientific Review Panel

The Color Additives Scientific Review Panel considered whether there was information sufficient to perform a carcinogenic risk assessment on the colors D&C Red No. 19 (R-19), D&C Red No. 37 (R-37), D&C Orange No. 17 (O-17), D&C Red No. 9 (R-9), D&C Red No. 8 (R-8) and FD&C Red No. 3 (R-3) and to evaluate the assessments sent to FDA as part of the petitions for use of the colors for drug and external uses by the Cosmetic, Toiletry and Fragrance Association (CTFA). There is a lack of human data concerning the colors for making a human health assessment, so the assessments are based upon the extrapolation of animal data. The risk assessments are determined for exposure to single chemicals. Excluded from consideration are possible effects from exposure to multiple chemicals, such as co-carcinogenesis, promotion, synergism, antagonism, etc. In the light of recent efforts in establishing a consensus in risk assessment, the Panel has determined that the CTFA assessments for R-10, O-17, and R-9 are consistent with present acceptable usages, although it questions some of the assumptions used in the assessments. The Panel identified a number of general assumptions made, and discusses their validity, their impact on total uncertainty, and the potential options to address the gaps in understanding that necessitate the assumption. The Panel also derived revised risk estimates using more "reasonable" assumptions than "worst-case" situations, for 90th percentile and average exposure. For those assumptions that are easily quantifiable, the Panel's estimates are less than an order of magnitude lower than the CTFA risk estimates, indicating that the underestimates and overestimates of the CTFA risk estimates tend to balance each other. The impact of most of the assumptions is not quantifiable. The assessment for R-3 is complicated by the fact that there is no good skin penetrance study for this color. It was assumed that the penetrance is similar to that of another water-soluble xanthene color, R-19. It is expected that the absorption of the color is not likely to exceed that of the smaller molecule, R-19. Therefore, the risk estimates are similar to the CTFA estimates, but with different reasoning. The estimates for R-8 and R-37 are different from the others in that there is a lack of any exposure or toxicological information on these colors.(ABSTRACT TRUNCATED AT 400 WORDS)     

论持敬在朱熹心性修养中的作用

持敬是朱熹心性修养的根本工夫。朱熹从敬之作用的角度把敬界定为“一心之主宰而万事之本根”。本文从“涵养须用敬”和“未有致知而不在敬者”两方面, 对敬之作用进行了论述。     

对“科学传播”概念的若干分析

本文对学术界关于“科学传播”概念争论中所涉及的一些问题进行了讨论, 给出了关于“科学传播”概念的基本描述。本文认为, 科学传播是“指科技知识信息通过跨越时空的扩散而在不同个体间实现知识共享的过程”, 包括专业交流、科技教育、科学普及、技术扩散等四个基本方面。     

从克罗齐到苏珊·朗格 --对情感表现说的新认识

克罗齐与苏珊·朗格都赞同艺术是表现性的,但两者又有不同.一般认为,苏珊·朗格的"人类情感说"是对克罗齐"自我表现说"的超越,但本文认为两者关系更为复杂,并试图通过对两者的比较,来获得对情感表现说的新认识.     

当代文学史写作的价值之惑

当代文学史写作面临的最大困难是价值标准的确立。目前出版的两部有影响的文学史分别代表了学术界两种不同的文学史观和价值立场。有人认为文学史应当采取一种客观、冷静、中性的立场,尽量"还原历史情景"而不作价值判断。但是,文学研究的性质不仅要求文学史写作者不能仅仅停留在对于历史事实的描述,而且要求研究者发挥自己的主体能动作用,对文学现象和作品作出价值评判,因此,只有站在人文主义的价值立场,才能发现以往文学史所不能发现的优秀作品,才能找到文学作品潜在的意义与价值。