海洛因中毒小鼠睾丸的组织形态改变

通过腹腔注射海洛因使小鼠染毒,观察了生精小管上皮细胞的形态变化,并应用图像分析系统对实级精母细胞的形态参数进行了分析。结果表明,一定剂量的海洛因对小鼠初级精母细胞的细胞面积、细胞周长、核面积、浆面积、核浆比例、核灰度及细胞圆形度均有影响。提示海洛因可明显改变小鼠生殖细胞的形态结构。     

多媒体在英语教学中的合理使用

在科技高度发达的二十一世纪，作为社会的重要组成部分，大学课堂也充分利用了多媒体进行教学。英语教学中合理地使用多媒体辅助教学，在很大程度上提高了学习效率，并且强化了学生的英语听说能力。本文讨论了多媒体在英语课堂教学中的正确使用和应该注意的问题。     

Encountering Microcomputers

Explored are the typical features of the experiences of first time, novice microcomputer users who are unfamiliar with basic computer equipment. Upon encountering a microcomputer for the first time such persons face a set of novel experiences including inadequate knowledge, altered sense of time, concerns about scarce capacity and dexterity, technological anxiety, and several other factors. Questions are raised about the consequences of encountering microcomputers among first time users in an effort to explicate the most important factors associated with successful accomodation. This analysis may provide helpful information for those engaged in computer training and staff development in the human services.     

关于微机应用于教学实习的探讨

本文指出了学生在微机教学实习中出现的若干问题，探讨了解决这些问题的方法。     

计算机应用基础的教学改革

本文叙述了近年来《计算机应用基础》课程教学的改革过程。通过总结肯定已取得的成绩 ,同时找出仍存在的不足 ,努力改进 ,希望将今后的工作做得更好。     

The Effectiveness of a Computerized Self-Help Stress Coping Program with Adult Males

The purpose of this study was to determine if a computerized self-help stress coping program, based upon cognitive learning theory, is effective in reducing stress in adult males. Thirty adult male juvenile counselors were randomly assigned to an experimental or non-participating control group. A computerized self-help stress coping was used over a five week period by those in the experimental group. As hypothesized, no differences were found between the groups on the variables of occupational stress and trait anxiety. However, decreases in personal strain and state anxiety were found along with increases in personal resources. The factor of social support was found to account for the greatest amount of variance in all dependent variables. It was concluded that stress coping computer programs can provide some relief for situational types of stress.     

Iterated full partitions

Algebraic calculations that depend upon a full partition can be automated through the use of an operator P for the derivation of such a partition. Calculations that require the repeated use of P are automated by simply iterating the operator. The resulting output is general and contains sufficient structure to identify the result of a calculation for a variety of settings.     

面向工程图学的计算机绘图教学与思考

传统的工程图学教学，其内容、方法、手段已远远落后于现实。作为计算机辅助设计与制造(CAD／CAM)技术的重要组成部分，计算机绘图(CAG)在现代工业制造过程中占据着举足轻重的位置。为了适应时代的发展，培养出具有时代气息的人才，在高校工科专业中应加强计算机绘图方面的教学。     

计算机图形学教学改革与实践

针对当前计算机图形学教学中出现的系列问题,结合课程特点和教学理念,给出了具体的教学改革措施,探讨了其在教学环节中的实际应用。实践表明,这些措施对加深课程内容理解,提高教学质量,培养学生综合能力有明显的作用。