铝合金轴心受压构件截面不对称性系数研究

铝合金轴心受压构件需要引入系数ηas来考虑截面不对称性带来的不利影响.在大量数值分析的基础上,提出了系数ηas的计算公式,可以作为设计计算的依据.提出了广义的稳定计算系数的概念,用以在确定铝合金轴心受压构件的屈曲抵抗力时考虑系数ηas的影响,这样可与惯用设计方法相一致.     

Evaluating scaled score differences for the bannatyne recategorization of the Wechsler subtests

This study provides guidelines for practitioners to determine the minimum differences, in scaled score points, needed for statistical significance when applying the Bannatyne recategorization of WISC-R subtests on an individual basis.     

Meta-Analysis of the Impact of Reading Interventions for Students in the Primary Grades

Abstract

This meta-analysis systematically reviewed the most up-to-date literature to determine the effectiveness of reading interventions on measures of word and pseudoword reading, reading comprehension, and passage fluency, and to determine the role intervention and study variables play in moderating the impacts for students at risk for reading difficulties in Grades 1–3. We used random-effects meta-regression models with robust variance estimates to summarize overall effects and to explore potential moderator effects. Results from a total of 33 rigorous experimental and quasi-experimental studies conducted between 2002 and 2017 that met WWC evidence standards revealed a significant positive effect for reading interventions on reading outcomes, with a mean effect size of 0.39 (SE = .04, p < .001, 95% CI [0.32, 0.46]). Moderator analyses demonstrated that mean effects varied across outcome domains and areas of instruction.     

建筑结构底层高度的确定

建筑结构在结构分析计算前,须先确定结构嵌固端所在位置,并进而确定底层的高度（即为从嵌固端的位置到一层楼盖顶面的高度）确定嵌固端的部位和底层高度尤为重要,在此提出几种实用方法,供同行参考。     

体育仲裁管辖强制性辨析

在体育仲裁实践中,体育仲裁机构仲裁管辖权的取得,很大部分是基于许可合同或体育组织章程的仲裁条款.由此引发了学者们关于我国体育仲裁管辖"强制与自愿"的争论.结合仲裁理论对此作一简单探讨.     

论安全保障义务的判断标准

判断过失的客观说主要是以＂第三人＂的标准来判断行为人的行为是否违反安全注意义务。该＂第三人＂为法律虚拟的理性人。我国司法实践中在判断过失上采用客观标准可按照以下步骤：存在法律、行政法规及司法解释等法定标准时,先依据法定标准判断;在某些行业规范中规定了特定行业和执业人员行为标准时,这样的行业标准可以补充法定标准作为判断过失的依据;在寻尽以上方法后,才能运用＂理性人＂的标准,结合具体案件中主体行为能力、社会专业角色、有无突发情形这三种常见特殊情况判断。     

索债型非法拘禁行为浅析

索债型非法拘禁行为是因索要债务引发的特殊行为,刑法及司法解释认为合法债务和非法债务都能导致非法拘禁罪。这一规定存在一些不足,应当对刑法及相关司法解释进行适当修改,将合法债务与非法债务区分开来,并且修改绑架罪的规定以纠正量刑不公问题。通过对债务、行为的具体分析对索债型非法拘禁行为进行定性。     

The Use of the Cloze Testing Procedure for Detecting Plagiarism

Teachers have been long concerned with the problem of detecting plagiarism. This study was undertaken to determine whether the cloze procedure might provide an objective, reliable, and practical method for detecting plagiarism. The objectives of the study were to: confirm that a plagiarism effect on cloze test scores exists; determine whether, if so, it is large enough to be of practical utility in detecting plagiarism; and, assuming a substantial effect is found, ascertain whether its magnitude varied as a function of the subject matter of the topic assigned, native language of the examinee, or race of the examinee. The results of this study comparing cloze test performances by plagiarists and non-plagiarists indicated substantial differences in error rates for these two groups. The data support the original hypothesis that the cloze procedure may be used as a valid and sensitive measure for discriminating plagiarists from non-plagiarists.     

确定振动周期的几种途径

振动是典型的运动形式,周期是描述振动的重要特征量,确定振动的周期是分析和讨论振动的重要环节之一.确定振动周期有以下几种途径：用势能曲线分析和确定;用相曲线分析确定;用函级近似法分析;用量纲法分析.     

Evaluating faculty performance under the equal pay for equal work doctrine

The issue of sex discrimination in faculty employment has become a prominent legal and political concern, necessitating the development of objective empirical methods to determine the existence of patterns of discriminatory treatment. In this study, regression techniques are employed to apply the equal pay for equal work interpretation of the fair employment doctrine. Specifically, faculty promotion and salary policies at the University of Texas at Austin are analyzed to determine whether male and female faculty members are rewarded equally for equal academic qualifications and performances. This regression analysis tends to support the discrimination hypothesis with respect to both promotion and salary policies.     

一类不等式成立的条件

在符号计算、代数计算及不等式的自动推理的研究中,带符号系数的多元不等式组的判定问题占有重要地位.一个一元符号多项式的正定性可根据它的实根个数为零作出判定,并利用多项式的判别系统来完成,在高次的情形得到的结果已相当复杂.但对于带符号系数的一元不等式组的判定问题,仅用其中每个多项式的判别系统已不能达到目的.利用多项式的推广的判别式序列,我们讨论了带符号系数的一元不等式组的判定问题,并用例子说明我们的方法能给出不等式组成立时系数应满足的条件.     

Construct validity of the K-ABC for gifted children

Fifty-four elementary-age gifted students were administered the K-ABC. To determine construct validity of the test for this population, the factor structure was obtained for mental processing and achievement subtests and then compared to the factor structure obtained for children from the standardization sample via a procedure that determines factor structure similiarity between groups. Except for minor variations, the factor structure for the gifted children was very similar to that for nongifted children in the standardization sample. However, the most parsimonious structure accounted for slightly less than 40% of the shared test variance, which leads to questions about the advisability of educational program planning based on obtained scores.     

机构改革经济原因探析

从经济角度看，政论机构及其人员的膨胀造成财政负担过重，不够俣理的行政区域划分，造成整个国民经济被不同地区或部门所分割甚至导致地方保护主义。正义部门权力过大导致经济腐败加深，同时政论在干预经济活动中的效率不高，这些因素了机构改革势在必行。     

Measuring the potential for child maltreatment: the reliability and validity of the Adult Adolescent Parenting Inventory--2

OBJECTIVE: The field of child protection needs reliable and valid methods of assessing the potential for child abuse and neglect. The purpose of this study was to examine the psychometric properties of the Adult Adolescent Parenting Inventory--2 (AAPI-2), Form B, using a sample of 309 low-income, rural families in a southern state. METHOD: The AAPI-2 is a 40-item survey designed to assess the parenting and child rearing attitudes of adult and adolescent parent and pre-parent populations. Each of the five AAPI-2 scales was (a) examined using factor analysis in order to determine the unidimensionality of the scale, (b) evaluated based on estimates of the scales reliability in order to determine the consistency with which the construct was measured, and (c) when possible, examined to determine if it is related to other constructs in meaningful and expected ways. RESULTS: While the factor structure reported by the developer was not fully confirmed in this sample, there is some evidence that the instrument is measuring at least two of the constructs it purports to measure and that the total score may be useful. Correlations with other instruments measuring parenting behavior and child behavior were significant, and in the expected direction, offering some support for the validity of the AAPI-2. CONCLUSIONS: While the AAPI-2 appears to measure attitudes related to harsh or neglectful parenting, caution should be used in the interpretation of the individual AAPI-2 scales.     

论高校在国家助学贷款中的地位与作用

国家助学贷款的教育属性和高校在国家助学贷款工作中的特殊地位决定了高校应当在助学贷款工作中发挥重要作用，但目前高校普遍存在着认识不足、宣传不力、教育不够、管理不严的问题。高校在国家助学贷款工作中，应当利用自身优势，充分发挥教育者和管理者的作用。     

Revamping the funding formula for special education programs in Taiwan

The purpose of this study was to determine the services required by students in special education programs and to estimate the cost of adequately funding special education in Taiwan. Questionnaires were administered to 300 special education teachers at the elementary school level to identify the services required. Thereafter, two focus group interviews were organized to determine the service categories and their cost. The results show that the costs for special education programs vary significantly according to severity of disability, and the weighting for mildly, moderately, and severely disabled students was found to be 3.7, 4.5, and 5.2, respectively. The costs also vary significantly according to the category of disability, and the weighting was found to range from 3.6 for emotionally disabled students and to 5.9 for hearing impaired students. These findings suggest that the current special education funding formula in Taiwan, which ignores these cost differences, should be revamped.     

试论惩罚性赔偿数额的确定

惩罚性赔偿数额的确定是惩罚性赔偿制度理论中引起争议最多的问题,也是将惩罚性赔偿制度引入我国立法后在司法实践中可操作性较强的问题。文章就我国现行惩罚性赔偿数额的规定进行分析思考,指出其不足。介绍了英美法系国家的相关规定,提出完善我国惩罚性赔偿数额的几点立法建议。     

论中小学教师专业标准中的学科成分

积极应对学科知识的挑战是当前中小学教师亟待解决的问题。然而,学科成分在中小学教师职业标准中究竟是什么,尚无定论。研制教师专业标准的重要工作之一就是确定其中的学科成分。中小学教师专业标准中的学科成分也称为中小学教师的学科专业素养,它是以学科知识为载体、以概念理解和问题解决的思想为主线逐渐发展起来的一个体系,包含良好的学科观,对学科发展脉络的清晰认识,对学科核心内容的准确把握,对学科基础知识、基本技能和基本思想、基本活动经验的深刻理解以及良好的学科能力。就高中数学学科而言,教师专业标准中的学科成分不仅表现为对于高中数学核心内容的准确理解和恰当把握,而且包含对于数学发展脉络的清晰认识以及对小学数学、初中数学和大学数学中相关内容的准确认识。提高教师的学科素养,需要分层处理、综合实施。     

Gender effects for student perception of the classroom psychosocial environment

A future shortage of science teachers has been predicted, and since women are presently underrepresented in the sciences, they are a good potential source for future science teachers. Unfortunately women appear to become less interested in science as they continue in school. Because the classroom psychosocial environment has been shown to be related to learning outcomes, it may contribute to women's lack of interest in sciences. This study compared the classroom environments perceived by fourth grade, seventh grade and high school boys and girls in classes taught by males and females to determine if any perceptual differences existed. The three, two factor MANOVAS (teacher gender by student gender) showed no differences for fourth grade students, one for seventh grade students and three for high school students. The seventh grade boys and girls perceived classes taught by females as having more friction than classes taught by males and high school boys and girls perceived classes taught by females as being more difficult than classes taught by males. Further, for the high school students it appears that classes are perceived more favorably when the opposite genders are combined. These perceptual differences combined with role modeling may contribute to the lack of women in science. More research is necessary to determine causal relationships.     

拓宽思维空间—— 一种光折射的特佳演示法

本文介绍一种光折射的演示法,它是用激光作光源,可演示光的折射现象和测定折射率,这种方法容易操作并且准确度高,它适用于任何教室环境