矩阵方程AXB+CXD=F的两种参数迭代解法的讨论

讨论了求解线性矩阵方程AXB CXD=F的两种参数迭代方法,并分别分析了两种迭代方法的收敛性。     

太极推手对练套路教学教法研究

经中国武术协会、亚洲武术联合会审定推出的太极推手对练套路,具有丰富的推手技术、独特的运动特点以及深邃的传统文化内涵,为国内外太极拳习练者所喜爱。因是两人对练且技术复杂,教学具有一定难度。为使学生更好地掌握太极推手技术,传承民族体育文化,普及太极推手运动,采用文献资料、实践总结等方法对太极推手对练套路教学教法进行总结,旨在加强交流,完善推手教学理论与方法,提高教学质量之目的。     

中国环境行政执法后督察制度探析

面对许多环境行政处罚、行政命令难以落实到位,环境问题日益突出等现状,国家适时推行了环境行政执法后督察制度。主要介绍了环境后督察制度的由来、后督察对象、程序、措施,分析了后督察制度落实过程中存在的问题,并提出了针对性的完善措施。     

“全体性、全程化、全方位”实践育人体系研究

根据系统论的观点,高校设计实践育人体系,要把实践育人工作摆在人才培养的重要位置,落实实践育人参与面、受益面的全体性要求,坚持课堂实践教学人人参与,社会实践开展广泛,校园媒体、网站全覆盖;要充分了解实践育人在学科专业中的地位和作用,贯穿专业人才培养始终,坚持实践育人与专业教育结合不断线,加强专业文化建设,打造专业教育与实践育人的共享基地,完善实习过程思想品德考察;要从目标设计、过程控制、条件保障着手,统筹推进实践育人各项工作。     

Comparison of Haptic and Biometric Properties,Bacterial Load,and Student Perception of Fixative Solutions: Formaldehyde Versus Chilean Conservative Fixative Solution with and without Formaldehyde in Pig Kidneys

One of the most widely used solutions to fix and preserve organic tissues is formaldehyde, despite reservations regarding its toxicity and the fact that formaldehyde-embalmed bodies lose their original characteristics. Anatomy laboratories have been replacing formaldehyde with solutions that retain the characteristics of fresh tissue. For this purpose, alternative solutions with a very low concentration of formaldehyde or without any formaldehyde have been analyzed. The objective of this study was to compare biometry, coloration, haptic properties, and bacterial load on animal specimens (pig kidneys) embalmed with formaldehyde, and with Chilean Conservative Fixative Solution with and without formaldehyde (formaldehyde chCFS and formaldehyde-free chCFS). Also, the perception of health and biological science students toward specimens treated with different solutions was assessed. The results indicated that there were no significant differences in specimens’ retraction, or bacterial load. Students showed a preference for organs embalmed in formaldehyde chCFS and formaldehyde-free chCFS; indicating that with these treatments they could better visualize structures and that the prosections had greater flexibility and the colors were more similar to those of fresh tissue. Additionally, students recommended the material embalmed in formaldehyde chCFS and formaldehyde-free chCFS for anatomy learning. In contrast, students indicated that formaldehyde-fixation negatively affected their practical experience. In conclusion, embalming with formaldehyde chCFS or formaldehyde-free chCFS provides an advantageous practical experience over the use of formaldehyde and may be an alternative to replace the use of formaldehyde in anatomy laboratories.     

Determining validity and identifying nonresponse bias in a survey requesting income data

Two procedures for validating incomes self-reported in ranges by University of Kentucky doctoral graduates, one comparing grouped data to income data collected by the National Academy of Sciences (1974) for the same year, 1973, the other comparing individual self-report data in a double-blind process to state income tax records, indicating that the self-report data were generally accurate. A check of respondents versus nonrespondents in various categories (sex, age, graduation year, Holland type, Biglan type) showed no difference in the proportion of response in any category. Comparison of nonrespondent income with respondent income in state income tax records revealed that nonrespondents averaged almost $3,500.00 less income during that year than did respondents. This finding held true across all categories but two.     

完善我国行政处罚程序的若干思考

从理论和实务两方面剖析我国听证程序，并提出若干改革建议。     

Which events can cause iteration in instructional design? An empirical study of the design process

Instructional design is not a linear process: designers have to weigh the advantages and disadvantages of alternative solutions, taking into account different kinds of conflicting and changing constraints. To make sure that they eventually choose the most optimal one, they have to keep on collecting information, reconsidering continuously whether their own decisions are still justified in the light of the latest insights. We have studied the role of iteration during instructional design. For our research, we have used an ISD-based method for the specification of training simulators. During our empirical evaluation study, we introduced five events that are likely to cause iteration. The results show that the quality of the designs is not directly related to the amount of iteration. We conclude that there are different kinds of iteration, triggered by different kinds of actions and events. We propose a list of triggers for iteration some of which originate from outside (new information, new opinions/arguments and acquisition procedures); others are caused by, or evolve from interaction with the design process itself (discovery of missing input, need to repair errors, new insights based on work later on in the design process, and new ideas of the designers). in final form: 4 August 2005     

一类非线性Φ-强伪压缩映射Mann迭代序列的收敛性

在q一致光滑Banach空间中,研究了一类广义LipschitzΦ-强伪压缩映射和Φ-强增生映射的Mann迭代收敛问题,所得结果改进和扩展了目前的相关结果。     

用迭代法计算预定精确度下的算术平方根

本给出了在预定精确度下用迭代法计算算术平方根的方法，并分析了迭代的误差，给出了预定精确度下初始值的一个选取范围．