新型城市化背景下的高职教育与广州经济社会联动发展探析

在全球化浪潮席卷和本土化经营并存态势下,面对广州新型城市化发展、智慧城市建设、产业转型升级、产业融合以及新行业、新岗位(群)不断涌现,作为服务广州经济社会发展的高职教育应积极"响应"和强化人才培养、科学研究与社会服务功能,办出特色,促进学院专业建设、教学质量、科研水平、办学效益再上新台阶。本文以广州城市职业学院为例,结合自身的办学特色和优势,围绕高职教育服务广州经济社会发展的运行规律和客观要求,遵循校企社政四方共建平台原则、高职教育与社会服务互促互进原则,进行新型城市化背景下的高职教育与广州经济社会联动发展研究,并提出相关建议。     

Asymptotic approximations to the distribution of Kendall's sample τ

This paper provides a saddlepoint approximation to the distribution of the sample version of Kendall's τ, which is a measure of association between two samples. The saddlepoint approximation is compared with the Edgeworth and the normal approximations, and with the bootstrap resampling distribution. A numerical study shows that with small sample sizes the saddlepoint approximation outperforms both the normal and the Edgeworth approximations. This paper gives also an analytical comparison between approximated and exact cumulants of the sample Kendall's τ when the two samples are independent.     

科学院大学的教学优势与发展趋势——以中国科学院大学为例

科学院办大学是基于探索研究型大学与科学院双边合作模式，尝试从科学院系统中走出一条研究型大学的独特发展之路，旨在推进科教融合。作对我国高等教育体制改革的一项探索，中国科学院大学在科研、师资、教学和就业等方面具有明显优势。但在发展过程中，科学院大学与现存高等教育体制的关系还需要理顺，招生规模还需要严格控制，以确保人才培养质量。探究科学院大学的教学优势，旨在发挥其资源优势，深化科教一体化人才培养模式，促进科研与教学的充分融合，实现科学院与大学共同发展的目标，使大学最终与科研机构不再分离——科学院成为大学的科学院，大学成为科学院的大学。     

Percentage points of the statistics for testing hypotheses on mean vectors of multivariate normal distributions with missing observations

A problem of testing of hypotheses on the mean vector of a multivariate normal distribution with unknown and positive definite covariance matrix is considered when a sample with a special, though not unusual, pattern of missing observations from that population is available. The approximate percentage points of the test statistic are obtained and their accuracy has been checked by comparing them with some exact percentage points which are calculated for complete samples and some special incomplete samples. The approximate percentage points are in good agreement with exact percentage points. The above work is extended to the problem of testing the hypothesis of equality of two mean vectors of two multivariate normal distributions with the same, unknown covariance matrix     

On an asymptotic relative efficiency concept based on expected volumes of confidence regions

ABSTRACT

The paper deals with an asymptotic relative efficiency concept for confidence regions of multidimensional parameters that is based on the expected volumes of the confidence regions. Under standard conditions the asymptotic relative efficiencies of confidence regions are seen to be certain powers of the ratio of the limits of the expected volumes. These limits are explicitly derived for confidence regions associated with certain plugin estimators, likelihood ratio tests and Wald tests. Under regularity conditions, the asymptotic relative efficiency of each of these procedures with respect to each one of its competitors is equal to 1. The results are applied to multivariate normal distributions and multinomial distributions in a fairly general setting.     

Modern likelihood inference for the maximum/minimum of a bivariate normal vector

ABSTRACT

We consider the use of modern likelihood asymptotics in the construction of confidence intervals for the parameter which determines the skewness of the distribution of the maximum/minimum of an exchangeable bivariate normal random vector. Simulation studies were conducted to investigate the accuracy of the proposed methods and to compare them to available alternatives. Accuracy is evaluated in terms of both coverage probability and expected length of the interval. We furthermore illustrate the suitability of our proposals by means of two data sets, consisting of, respectively, measurements taken on the brains of 10 mono-zygotic twins and measurements of mineral content of bones in the dominant and non-dominant arms for 25 elderly women.     

Confidence interval estimation and hypothesis testing for a common correlation coefficient

Several procedures have been proposed for testing the hypothesis that all off-diagonal elements of the correlation matrix of a multivariate normal distribution are equal. If the hypothesis of equal correlation can be accepted, it is then of interest to estimate and perhaps test hypotheses for the common correlation. In this paper, two versions of five different test statistics are compared via simulation in terms of adequacy of the normal approximation, coverage probabilities of confidence intervals, control of Type I error, and power. The results indicate that two test statistics based on the average of the Fisher z-transforms of the sample correlations should be used in most cases. A statistic based on the sample eigenvalues also gives reasonable results for confidence intervals and lower-tailed tests.     

完善中国高校内部教学评估机制的对策

完善高校教学评估机制,促进教学质量保障体系建设对于高校提高教学质量、深化教学改革、促进自主发展有着十分重要的意义。当前中国高校内部教学评估机制存在价值取向不当、评估主体单一、评估制度设计不科学、制度实施缺乏有效保障等突出问题。新形势下,高校应当积极借鉴国际经验,在明确学校办学目标和使命的基础上,以深化教学改革、加强内涵建设、提高教学质量、促进自主发展为目标,从评估规划、评估执行、评估控制、反馈处理等角度构建多位一体的教学评估机制,促进学校教学质量保障体系的建设。     

The social experience of physically disabled Australian university students

Research on the university experience of disabled students has focused on barriers in learning and teaching, while the social world of university has as yet gained little attention as a distinctive object of study. Here we examine social experience and socially imposed restrictions through the lenses of social capital and self-concept. A qualitative study investigated the formation of social capital and changes in self-concept amongst physically disabled Australian university students. Data were collected through semi-structured interviews and analysed using a grounded theory approach. The study found weak social attachments at university, but stronger attachments outside. Self-concept did not appear to be structured in any direct way by university-generated social capital, partly as a consequence of its weakness.     

德、位张力与先秦儒家的性命之学——对楚简《唐虞之道》第14至29号简的思想解读

文章系统解读了楚简《唐虞之道》第14至29号简的思想内涵及脉络,认为这部分简文首先通过尧成为天子之原因的追问,突出了德与位的张力问题,即在应然之理上,有位必当有德,但就实然之事看,有德未必有位.简文对这一德位张力有两个层面的解决方案:一方面,要求有德无位者全力修德,谨守性命,安于时命,养成恒常如一的圆满德行,从而能在得位而治时能“利天下而弗利”；另一方面,要求有位者透悟性命之正,从而能主动尚德授贤、退而养生,这既能使贤者居位而利天下,又能退而养生以自利.简文将“七十致政”之礼普遍化,试图断绝天子终身制的构想,也具有深刻的政治哲学意义.