Psychometric properties of the Transitions from Foster Care Key Leader Survey

This study summarizes the development and piloting of the Transitions from Foster Care Key Leader Survey (TFC-KLS), an instrument designed to measure change in systems serving young people transitioning from foster care to adulthood. The Jim Casey Youth Opportunity Initiative’s logic model was used as a basis for instrument development. The instrument was piloted with 119 key leaders in six communities. Seven of eight latent scales performed well in psychometric testing. The relationships among the 24 measures of system change were explored. A CFA testing overall model fit was satisfactory following slight modifications. Finally, a test of inter-rater reliability between two raters did not find reliable reporting of service availability in a supplemental portion of the survey. The findings were generally positive and supported the validity and utility of the instrument for measuring system change, following some adaptations. Implications for the field are discussed.     

The Construction of College Students＇ Employment Competitiveness Evaluation Index System

随着大学生就业呈现竞争化、多元化趋势，对高校就业情况的衡量标准也应由“就业率”评价向“就业竞争力”评价转变。大学生就业竞争力评价指标体系主要包括主观就业竞争力与客观就业竞争力。硬实力和软实力构成主观就业竞争力，其中软实力包括基本职业人格、学习创新能力、团队组织能力、职业知识结构四方面，客观就业竞争力包含就业机会、就业成本、就业效率和就业质量等方面。     

On Modeling Wood Formation Using Parametric and Semiparametric Regressions for Count Data

Understanding how wood develops has become an important problematic of plant sciences. However, studying wood formation requires the acquisition of count data difficult to interpret. Here, the annual wood formation dynamics of a conifer tree species were modeled using generalized linear and additive models (GLM and GAM); GAM for location, scale, and shape (GAMLSS); a discrete semiparametric kernel regression for count data. The performance of models is evaluated using bootstrap methods. GLM was useful to describe the wood formation general pattern but had a lack of fitting, while GAM, GAMLSS, and kernel regression had a higher sensibility to short-term variations.     

The aligned rank transform and discrete variables: A warning

For two-way layouts in a between subjects ANOVA design the aligned rank transform (ART) is compared with the parametric F-test as well as six other nonparametric methods: rank transform (RT), inverse normal transform (INT), a combination of ART and INT, Puri & Sen's L statistic, van der Waerden and Akritas & Brunners ATS. The type I error rates are computed for the uniform and the exponential distributions, both as continuous and in several variations as discrete distribution. The computations had been performed for balanced and unbalanced designs as well as for several effect models. The aim of this study is to analyze the impact of discrete distributions on the error rate. And it is shown that this scaling impact is restricted to the ART- as well as the combination of ART- and INT-method. There are two effects: first with increasing cell counts their error rates rise beyond any acceptable limit up to 20 percent and more. And secondly their rates rise when the number of distinct values of the dependent variable decreases. This behavior is more severe for underlying exponential distributions than for uniform distributions. Therefore there is a recommendation not to apply the ART if the mean cell frequencies exceed 10.     

论大理政权的军帅制——再论大理政权的性质

大理政权的基本军政制度是军政合一的军帅制。军帅制不同于自秦汉以来延续2000多年的封建君主专制帝制。封建君主帝制是中国封建社会贵族地主阶级实行专制统治的政治制度。军帅制则是农民起义军在农民战争中组织和领导农民起义军与封建专制帝制斗争的政体。大理政权的最高统帅总统兵马大元帅,不是一家一姓世袭的皇权的承袭者,而是在反清农民战争中,由各路起义军首领推举,拜帅任职,执掌大理政权最高权力。大理政权帅府采取合议制。帅府是大理政权的最高权力机构,主管大理政权军政事务。     

Discrete Linnik Weibull distribution

Abstract

We introduce a new family of distributions using truncated discrete Linnik distribution. This family is a rich family of distributions which includes many important families of distributions such as Marshall–Olkin family of distributions, family of distributions generated through truncated negative binomial distribution, family of distributions generated through truncated discrete Mittag–Leffler distribution etc. Some properties of the new family of distributions are derived. A particular case of the family, a five parameter generalization of Weibull distribution, namely discrete Linnik Weibull distribution is given special attention. This distribution is a generalization of many distributions, such as extended exponentiated Weibull, exponentiated Weibull, Weibull truncated negative binomial, generalized exponential truncated negative binomial, Marshall-Olkin extended Weibull, Marshall–Olkin generalized exponential, exponential truncated negative binomial, Marshall–Olkin exponential and generalized exponential. The shape properties, moments, median, distribution of order statistics, stochastic ordering and stress–strength properties of the new generalized Weibull distribution are derived. The unknown parameters of the distribution are estimated using maximum likelihood method. The discrete Linnik Weibull distribution is fitted to a survival time data set and it is shown that the distribution is more appropriate than other competitive models.     

A decision support system for the selection of a casting process using analytic hierarchy process

This paper presents an Analytic Hierarchy Process (AHP) based decision support system to select the most suitable casting process for a given product. The hierarchical structure of the proposed method allows the decision maker to compare the different casting processes using the material suitability and flexibility, geometrical complexity, dimensional tolerance and surface finish of the casting, and the cost as the criteria for selection. Judgemental inconsistency of the decision maker in selecting the casting process is taken care by ensuring that the value of consistency ratio is below (0.1). A numerical example is presented to illustrate the effectiveness of the proposed methodology for selecting the suitable casting process.     

魏晋南北朝史发展要义二题

魏晋南北朝约400年,为分裂割据时期,战乱促使人们思维活跃,无论政治、军事、经济、文化皆出现了承上启下的新内涵。而其要义则为政治上的儒法结合和三省六部制,军事上的府兵制,经济上的均田制,文化上的永明新体诗和骈文的出现,所有这些对后世历史发展具有深远影响。     

世界体系中的"华南经济圈"及其参与中国-东盟自由贸易区的优势问题--全球化背景下的华南经济圈研究之一

世界各地的华侨华人经济联系建构了世界华商网络 ,并以此融入世界体系 ,形成了整个“中华经济圈” ;而包括粤港澳台闽桂琼在内的“华南经济圈”则构筑了“中华经济圈”的圆心 ,并维系其经济增长 (“圆周半径”)的动态平衡。“华南经济圈”由闽台经济区、珠江三角洲经济区、环北部湾沿岸经济区和环南中国海经济区所构成 ,它参与中国———东盟自由贸易区的优势主要在于地缘经济优势、特区经济优势和会展经济优势     

自治市法律地位刍议

民族自治地方城市化是我国城市化的重要组成部分。我国自治地方城市化水平相对滞后,原因之一是宪法和自治法没有赋予自治市以自治地方的法律地位。宪法和自治法赋予自治市以自治州、自治县同样的法律地位,是自治地方城市化的必由之路和必然选择。