生态工业系统研究述评与展望

从生态工业系统模型、特征、分类、实施途径以及生态工业系统与清洁生产关系等方面述评了国内外生态工业系统的研究进展,指出目前国内外研究仅停留在传统产业园区的生态建设上,未来的发展趋势是在工业城镇或更广泛区域构建社会利益相关者(包括政府、企业、社区)共同参与的生态工业系统,并强调注重环境管理工具和高新技术产业在生态工业发展中的作用,以期为生态城市建设战略的研究奠定一定的基础。     

A class of count models and a new consistent test for the Poisson distribution

We define a class of count distributions which includes the Poisson as well as many alternative count models. Then the empirical probability generating function is utilized to construct a test for the Poisson distribution, which is consistent against this class of alternatives. The limit distribution of the test statistic is derived in case of a general underlying distribution, and efficiency considerations are addressed. A simulation study indicates that the new test is comparable in performance to more complicated omnibus tests.     

职业技术教育的社会功能

职业技术教育属于教育系统的一个子系统,它的社会功能除了具有一般教育的共同点外,还有促进社会就业进而推动社会经济发展的独特的社会功能。因此,职业技术教育的社会功能还包括社会福利功能和社会整合功能。职业技术教育的这些社会功能,渗透到社会生活的各个方面,日益成为影响人类社会和经济发展的重要因素。同时,这些社会功能在确定职业技术教育的发展方向、培养目标、课程设置、规模速度等方面起着关键作用。     

Overcoming the Effects of Variation in Infant Speech Segmentation: Influences of Word Familiarity

Previous studies have shown that 7.5‐month‐olds can track and encode words in fluent speech, but they fail to equate instances of a word that contrast in talker gender, vocal affect, and fundamental frequency. By 10.5 months, they succeed at generalizing across such variability, marking a clear transition period during which infants' word recognition skills become qualitatively more mature. Here we explore the role of word familiarity in this critical transition and, in particular, whether words that occur frequently in a child's listening environment (i.e., “Mommy” and “Daddy”) are more easily recognized when they differ in surface characteristics than those that infants have not previously encountered (termed nonwords). Results demonstrate that words are segmented from continuous speech in a more linguistically mature fashion than nonwords at 7.5 months, but at 10.5 months, both words and nonwords are segmented in a relatively mature fashion. These findings suggest that early word recognition is facilitated in cases where infants have had significant exposure to items, but at later stages, infants are able to segment items regardless of their presumed familiarity.     

Robust testing with generalized partial linear models for longitudinal data

By approximating the nonparametric component using a regression spline in generalized partial linear models (GPLM), robust generalized estimating equations (GEE), involving bounded score function and leverage-based weighting function, can be used to estimate the regression parameters in GPLM robustly for longitudinal data or clustered data. In this paper, score test statistics are proposed for testing the regression parameters with robustness, and their asymptotic distributions under the null hypothesis and a class of local alternative hypotheses are studied. The proposed score tests reply on the estimation of a smaller model without the testing parameters involved, and perform well in the simulation studies and real data analysis conducted in this paper.     

黄庭坚谪居黔州交游考述

黄庭坚谪居黔州期间,虽出于全身避祸和害怕累及他人的考虑而经常"谢病杜门",但无论是山谷从前的旧交好友,还是在黔中刚结识的新知同僚、巴蜀后学,非但不以罪臣视之,反而主动与之联系并于诗人照拂有加。而诗人亦尽可能地为前来向他请益求教的两川士人提供帮助,尤其乐于为他们指明"进学畜德"之途,对南北文化的交流与传播和当地人才的培养等做出了巨大的贡献。同时,巴蜀士人的人道关怀,不但使诗人得以度过患难,而且也使诗人的思想和创作发生了巨大变化。