可持续发展理念在钢筋混凝土结构教学中的渗透实践

本文阐述了可持续发展工程结构的内涵及在钢筋混凝土结构教学中引入可持续发展理念的重要性。结合多年的科研工作,将结构设计理论的最新研究成果渗透到钢筋混凝土结构教学中,通过分析设计可持续发展工程结构的方法和途径,结构概念及耐久性与可持续发展的关系,逐步培养学生可持续发展工程结构的意识,取得了较好的教学效果。     

“建筑结构”课程改革建设的探索——基于工程管理专业教学研究

该文介绍了工程管理专业学科特点、培养目标和就业方向,结合当下工程管理专业"建筑结构"传统课堂教学现状及存在的问题,论述了工程管理专业"建筑结构"课程改革的必要性,从优化整合教学内容、技术与管理融会贯通、丰富考核方式及教学手段方面深入探索建筑结构改革的策略和方法。     

清华大学结构工程重点学科点介绍

清华大学土木工程系结构工程和地震工程及防护工程均为国务院学位委员会批准的博士学位授予点,设有博士后科研流动站。1987年结构工程联合地震工程及防护工程学科被定为国家级重点学科点(简称结构工程学科点)。结构工程是土木工程的基本性学科,在当今我国经济飞跃和人口城市化进程中起着突出的作用。面对下世纪土木工程师应有的知识结构,本学科点的研究方向主要分三个层次:①综合考虑施工安全、工程防灾、结构耐久性的结构分析与设计方法;②考虑大型工程项目实施的系统工程与集成工程方法;③多学科交叉的高新技术与新型材料及其结构的性能研究。     

某地下室结构防水施工工艺探讨

本文以某工程为例,着重介绍了该地下室主体结构的防水施工工艺及施工注意事项,以供同类工程参考。     

《船舶与海洋工程结构疲劳强度》本科生课程知识体系构建研究

船舶与海洋工程结构的疲劳断裂问题一直是船海工程领域所关注的主要课题,也是船舶与海洋工程结构强度校核的重要内容之一。本文通过对船舶与海洋工程结构疲劳分析的范畴及船舶结构疲劳分析的工程应用的讨论,构建了《船舶与海洋工程结构疲劳强度》本科生课程知识体系。     

刚架及网架组合结构施工技术

本工程1000人大会堂屋顶,采用了刚架及网架组合结构.钢结构具有自重轻、安装容易、施工周期短、抗震性能好等综合优势,钢结构网架可做到大跨度、大空间施工,而且施工速度快、抗震有利.本文主要从结构特点,施工技术工艺等方面叙述了刚架及网架组合结构在大跨度、大空间工程中的施工过程.     

浅析建筑结构加固改造设计与施工

通过对建筑结构加固改造是延长其使用性能的基本方法,本文分析了加固改造行业现状,说明了加固改造工程程序,重点分析了加固改造的原理及方法,最后通过一工程实例阐述了建筑结构加固改造设计与施工的过程。     

地下结构工程课程教学方法研究

地下结构工程这门课理论性与实践性都很强,如何开展教学工作,确保教学效果,值得深思。从授课内容、教学方式、实践教学方式及课程设计等方面对地下结构工程课程的教学进行了全面的探讨。通过教学实践,结果表明,学生不仅能能够全面掌握该课程的理论知识、熟悉地下结构工程施工方法、提高学习效率,而且提升了学生将所学知识应用于工程实际的能力。     

工程管理专业教学体系的优化

分析工程管理专业人才培养的特点和目标 ,提出了优化教学体系的基本原则 ,建立了工程管理专业新的教学体系 ,研究了其课程类型、结构及各类课程的组成     

工程系统、工程教育与CDIO课程改革

长期以来,国内专家学者对于工程教育的研究大多停留在对教育政策和国外教育模式的初步解读上,对工程教育方面的定性研究较为有限。本文从工程教育起源出发,重点阐述了工程教育结构、课程体系及CDIO工程教育改革领域的系列核心问题。     

Criminal justice outcomes of prosecution of child sexual abuse: A case flow analysis

This study examined the progress and disposition of child sexual abuse cases referred for prosecution in four urban jurisdictions. Most cases were accepted for prosecution. The vast majority of cases carried forward for prosecution resulted in guilty pleas. Only 9% of the total sample went to trial. A majority of the small number that went to trial were convicted. Over 3/4 of those convicted were incarcerated. The rate at which cases were carried forward for prosecution and convicted was comparable to that of a national sample of felony arrests overall, but child sexual abuse cases were more likely to go to trial (p < .005) and received more severe sentences (p < .005). Our results are strikingly consistent with those from previous studies of prosecution of child sexual abuse. A new understanding of prosecution of child sexual abuse is recommended that takes into account the large proportion of cases that do not go to trial.     

Real Or Not Real: The Impact of the Physical Fidelity of Virtual Learning Resources on Learning Anatomy

Technological advancements have made it possible to create realistic virtual representations of the real world, although it is unclear in medical education whether high physical fidelity is required in virtual learning resources (VLRs). This study, therefore, aimed to compare the effectiveness of high-fidelity (HF) and low-fidelity (LF) VLRs for learning anatomy. For this study, HF and LF VLRs were developed for liver anatomy and participants were voluntarily recruited from two cohorts (cohorts 1 and 2). Knowledge outcomes were measured through pre- and post-tests, task outcomes including activity score and completion time were recorded and participants' perceptions of the VLRs were surveyed. A total of 333 participants (165 HF and 168 LF) took part in this study. Knowledge outcomes were higher for the HF activity in cohort 1 and for the LF activity in cohort 2, although not significantly. There were no significant differences in activity score within either cohort, although completion time was significantly longer for the HF activity in cohort 1 (P = 0.001). There were no significant differences within either cohort in perceptions of the VLRs regarding usefulness for reviewing conceptual knowledge, esthetics, quality, mental effort experienced, or future use, although the LF VLR was scored significantly higher regarding the value for understanding in cohort 1 (P = 0.027).This study suggests that high physical fidelity is not necessarily required for anatomy VLRs, although may potentially be valuable for improving knowledge outcomes. Also, level of prior knowledge may be an important factor when considering the physical fidelity of anatomy VLRs.     

Comparison of the relationship between two measures of visual-motor coordination and academic achievement

Scores from Koppitz' scoring system for the Bender-Gestalt and Beery's Developmental Test of Visual-Motor Integration for a group of 86 elementary students referred for psychoeducational evaluation were correlated with Wide Range Achievement Test scores, controlling for WISC-R IQ. Although zero-order correlations of the visual-motor measures with achievement were of moderate magnitude (.33 to.48) and were all statistically significant (p<.01), first-order partial correlations were of lower magnitude (.13 to.22) and half failed to reach statistical significance (p>.05). It was suggested that visual-motor ability may not offer a unique contribution to the prediction of achievement.     

The Place of the Fable in the Character Training of Children

Type I error rate and power for the t test, Wilcoxon-Mann-Whitney (U) test, van der Waerden Normal Scores (NS) test, and Welch-Aspin-Satterthwaite (W) test were compared for two independent random samples drawn from nonnormal distributions. Data with varying degrees of skewness (S) and kurtosis (K) were generated using Fleishman's (1978) power function. Five sample size combinations were used with both equal and unequal variances. For nonnormal data with equal variances, the power of the U test exceeded the power of the t test regardless of sample size. When the sample sizes were equal but the variances were unequal, the t test proved to be the most powerful test. When variances and sample sizes were unequal, the W test became the test of choice because it was the only test that maintained its nominal Type I error rate.     

Degree of mnemonic support and students’ acquisition of science facts

Eighth-grade students silently read passages that described dichotomized attributes of nine North American minerals. One-fourth of the students were given instruction in the use of mnemonic techniques, and were provided with “keywords” and mnemonic illustrations of the passage content; one-fourth were provided with keywords and given instructions for creating internal mnemonic images of the passage content; one-fourth were given instructions for creating their own keywords and internal mnemonic images; and the remaining fourth were given motivational instructions and told to use their “own best method” of studying while reading the passages. Mnemonic instruction, when accompanied by experimenter-provided keywords and mnemonic illustrations, produced superior recall of the mineral attributes in comparison to the other three conditions on both immediate and eight-day delayed performance tests. Implications of the findings are discussed with regard to the amount of external support necessary for effective use of mnemonic techniques by students reading expository prose passages.     

A Plan of Classifying Pupils

ABSTRACT

Critical ethnic and gender gaps exist in college retention and graduation rates. Early achievement motivation may play an important role in student persistence. A sample of undergraduates completed surveys tapping motivation at the beginning (n = 591) and end (n = 232) of their first semester in college. African American and Caucasian students were more academically self-efficacious than Asian American students. Self-efficacy increased over the semester and was higher for male than female students at both time points. African American and Asian American students were initially more extrinsically motivated than Caucasian students; however, by the end of the semester, all ethnic groups were similar on extrinsic motivation. Female students were more extrinsically motivated and mastery oriented than male students who were more performance oriented. Performance goal orientations were negatively associated with grade point average whereas mastery orientation, intrinsic, and extrinsic motivation were positively associated with academic performance. Implications for higher education are discussed.     

Nutritional status of four species of giant land snails in Nigeria

INTRODUCTION The major sources of meat protein for the Nige- rian populace come mainly from livestock in the form of poultry, beef, mutton and pork. These major sources are being decreased by persistent drought, diseases, high cost of feed, primitive animal hus- bandry techniques and low productivity of local animal breeds. The increasing growth of human populations (Oyenuga, 1968) together with the rising standard of living has also placed great pressure on the existing sources of animal…     

The eye of the beholder: metaphor in adult education research

Important workforce competencies for managers and professionals were identified separately for males and females through a sequence of interviews, content analysis, accessing expert opinion and statistical factoring procedures. Interviews of thirty‐two professionals and managers and a subsequent content analysis led to the development of a list of important skills, knowledge and attitudes which formed the basis for separate male and female competencies questionnaires. Principal components analyses were performed separately for male and female questionnaires, with samples of 310 women and 249 men. Seven important competencies were identified for each gender. Competencies for women were: maintenance of job skills; orientation to innovation and change; affective and cognitive efficacy; self determination and stability; presentation skills; interpersonal communication skills; and office politics skills. Competencies for men were: leadership ability; self‐determination; interpersonal ability; task management; job skill maintenance; office politics skills; and tolerance and open‐mindedness. Results suggest that acquiring competence in the workforce involves a combination both of learning and of overcoming constraints, and that individual experience influences important competencies.     

Moisture sorption characteristics of freeze-dried human platelets

Freeze-drying is a promising method for a long-term storage of human platelets. The moisture sorption characteristics of freeze-dried human platelets (FDHPs) were studied in this paper. The moisture sorption isotherms of FDHPs and freeze-dried lyophilization buffer (FDLB) were measured at 4, 25, and 37 °C. The experimental data were fitted to Brunauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAB) equations. There were no significant statistical differences (P>0.05) between the sorption characteristics of FDHPs and FDLB at 4 and 25 °C, while FDHPs absorbed more water at 37 °C. The net isosteric heat of sorption was derived. The heat for FDHPs showed an abnormal negative value at low moisture contents when 25 and 37 °C data were used. Dynamic sorption experiments were carried out at 25 °C with environmental water activity controlled at 0.75, 0.85, and 0.90. The moisture diffusion coefficient was fitted to be 8.24×10⁻¹² m²/s when experimental data at initial time were used. These results would be helpful in choosing prehydration and storage condition for FDHPs.