朱熹《西铭》研究的三个特点

朱熹作为理学的集大成者,他的《西铭》研究在《西铭》诠释史上具有非常重要的地位,同时也贯注了强烈的卫道意识,挺立了"事亲-事天"的逻辑架构,凸显了"理一分殊"的诠释视阈,对后世的《西铭》诠释产生了广泛而深远的影响。     

A NEW TEST FOR EQUALITY OF VARIANCES FOR k NORMAL POPULATIONS

ABSTRACT

A simple test based on Gini's mean difference is proposed to test the hypothesis of equality of population variances. Using 2000 replicated samples and empirical distributions, we show that the test compares favourably with Bartlett's and Levene's test for the normal population. Also, it is more powerful than Bartlett's and Levene's tests for some alternative hypotheses for some non-normal distributions and more robust than the other two tests for large sample sizes under some alternative hypotheses. We also give an approximate distribution to the test statistic to enable one to calculate the nominal levels and P-values.     

Asymptotic normality of MRPP statistics from invariance principles of u-statistics

Multi-response permutation procedures (MRPP) were recently introduced to test differences between a priori classified groups of objects ( Mielke, Berry Johnson, 1976; Mielke, 1979 ). The null distributions of the MRPP statistics were initially conjectured to be asymptotically normal for some specified conditions within the setting of a sequence of finite populations due to Madow ( 1948 ).

Asymptotic normality of a class of MRPP statistics (under the null hypothesis) is shown in two cases: (i) the setting which considers the populations to be the samples resulting from sequential independent identically distributed (i.i.d.) sampling (sampling from infinite populations) and (ii) the setting of a sequence of increasingly large finite populations (sampling from finite populations). The results are direct applications of the weak convergence of a U-statistic process in the i.i.d. case to a Brownian motion (Bhattacharyya and Sen, 1977) and of the weak convergence of a U-statistic process in the finite populations case to a Brownian bridge (Sen, 1972). The conditions are milder for the i.i.d. case than for the finite populations case. However, neither case provides a restriction of a practical consequence in applications of MRPP. In either case, convergence is shown to depend on the asymptotic ratios of the group sizes to the population size.     

Moments of a ratio of two quadratic forms

In this paper, we give the exact moments of a ratio of qua- dratic forms in normal variables, where the quadratic forms are not assumed to be independent. This problem was tackled by other authors who gave approximations and partial results. Here we will give the exact moments for the general case.     

An Anguished Relationship: The White Aged Institutionalized Client and the Non-White Paraprofessional Worker

Surprisingly little has been written about the polarization between the white, aged, institutionalized client and the nonwhite paraprofessional despite the pervasiveness of this phenomena and its adverse effects. This paper explores the discrepancy between cultural values and practice. The ethnocultural factors that influence conflict and provide the background of behavior which is determined by programming that the person carries around with her/himself are discussed. In sum, some pithy questions highlight the view that changed managerial attitudes, more innovative staff development techniques, and changed practice interventions are needed to obviate an intractable wrong.     

A Graphical Representation for Non-Parametric Inference

A method is described for determining the sample size required for a specified precision simultaneous confidence statement about the parameters of a multinomial population. The method is based on a simultaneous confidence interval procedure due to Goodman, and the results are compared with those obtained by separately considering each cell of the multinomial population as a binomial.     

FROM CREATIVE TO CULTURAL INDUSTRIES

In response to Daniel Mato's essay, this article argues against the concept of the creative industries and for a capacious understanding of culture to redefine the culture industries     

Wild Bootstrapping in Finite Populations with Auxiliary Information

Consider a finite population u , which can be viewed as a realization of a super-population model. A simple ratio model (linear regression, without intercept) with heteroscedastic errors is supposed to have generated u . A random sample is drawn without replacement from u . In this set-up a two-stage wild bootstrap resampling scheme as well as several other useful forms of bootstrapping in finite populations will be considered. Some asymptotic results for various bootstrap approximations for normalized and Studentized versions of the well-known ratio and regression estimator are given. Bootstrap based confidence interval s for the population total and for the regression parameter of the underlying ratio model are also discussed     

Generating Probabilistic Spatially-Explicit Individual and Population Exposure Estimates for Ecological Risk Assessments

Exposure to chemical contaminants in various media must be estimated when performing ecological risk assessments. Exposure estimates are often based on the 95th-percentile upper confidence limit on the mean concentration of all samples, calculated without regard to critical ecological and spatial information about the relative relationship of receptors, their habitats, and contaminants. This practice produces exposure estimates that are potentially unrepresentative of the ecology of the receptor. This article proposes a habitat area and quality-conditioned exposure estimator, E[HQ], that requires consideration of these relationships. It describes a spatially explicit ecological exposure model to facilitate calculation of E[HQ]. The model provides (1) a flexible platform for investigating the effect of changes in habitat area, habitat quality, foraging area, and population size on exposure estimates, and (2) a tool for calculating E[HQ] for use in actual risk assessments. The inner loop of a Visual Basic program randomly walks a receptor over a multicelled landscape--each cell of which contains values for cell area, habitat area, habitat quality, and concentration--accumulating an exposure estimate until the total area foraged is less than or equal to a given foraging area. An outer loop then steps through foraging areas of increasing size. This program is iterated by Monte Carlo software, with the number of iterations representing the population size. Results indicate that (1) any single estimator may over- or underestimate exposure, depending on foraging strategy and spatial relationships of habitat and contamination, and (2) changes in exposure estimates in response to changes in foraging and habitat area are not linear.     

The Child Labor Amendment in the Social Studies Class

As part of a geography-based minority recruiting program (MRP), teachers were asked to serve as mentors for teams of high school students interested in both postsecondary education and geography as a major discipline or career path. The goal was to determine whether teacher participation in MRP programs was an effective tool to mentor underrepresented populations in geography. One component of the program evaluation examined the impact of teacher participation in a MRP by analyzing participating teachers’ classroom strategies and students’ performance in the school year following the summer program. Teachers were surveyed and participated in follow-up interviews during the school year following their participation in the MRP to determine the effects of the program's professional development components. The research hoped to reveal: (a) the participant-teachers’ function and role as mentors for students and the changes of participant-teachers’ behaviors, and (b) how any changes in their classrooms have affected their students’ understanding of geography. Data collection, reduction and analysis followed a grounded-theory approach to qualitative research. The research confirmed that participants leave professional development with an increased enthusiasm for and a better understanding of geography that they shared with their colleagues and students. Furthermore, teachers reported overcoming campus and district barriers in order to implement strategies and technologies provided during the MRP. More promising findings validate the prevailing thought that the positive energy of the MRP continues to reach into the classrooms in the following years. By understanding the impacts of professional development on participating teachers, the discipline may better recruit and retain high-achieving minority students.