试析常微分方程模型的归结方法

本文介绍了常微分方程模型的三种归结方法,并以实例加以说明,旨在使大家对其有明确的认识,为以后建立常微分方程模型提供有力的帮助。     

互联网成瘾与心理防御机制的关系

运用DSQ(防御方式问卷)和KimberlyYoung互联网成瘾的八项指标,通过对97名互联网使用者直接发放问卷和发送电子邮件两种方式进行调查,结果表明:(1)互联网成瘾者占互联网使用者的16.52%,他们的平均年龄为22.75岁,其中以男性居多。(2)25种心理防御方式中,互联网成瘾者在幻想、期望、掩饰、升华、解除等心理防御方式上得分较高,正常使用者在期望、压抑、升华、掩饰、解除等心理防御方式上得分较高;与正常使用者相比,互联网成瘾者更多地使用被动攻击、抱怨、幻想、退缩、理想化、消耗倾向、掩饰等防御方式,而较少使用否认的防御方式。     

Service user and carer involvement in students’ classroom learning in higher education

The following article presents a small-scale qualitative study in which the student learning experiences from service user and carer (SUAC) involvement in social work, mental health nursing and social welfare courses at an English university were evaluated for any effects on student perceptions, knowledge, skills and practice. Using focus group methodology, student participants reported positive outcomes from exposure to SUAC classroom inputs such as a greater valuing of SUAC knowledge as expert knowledge, help with the development of empathy and an appreciation of constructive challenges to mainstream curricular delivery. Notes of caution were identified, particularly in respect of the sometimes unexpected levels of emotion displayed by SUAC presenters. Recommendations for meaningful SUAC involvement in higher education are made regarding the need to involve SUACs across the whole duration of a course; the need for the preparation of both students and presenters regarding boundaries; the fit of presentations with intended learning outcomes; more partnership delivery in classrooms between academics and SUACs (possibly with a differentiation between theoretical and practice inputs); the opportunities for SUACs to present their own situations as real rather than hypothetical case studies for students and the possibilities that may result from introducing a ‘buddying’ system between students and SUACs throughout their studies. It is suggested that the insights from this small-scale study merit further exploration on a larger scale if policy and practice in the field of service and user involvement in higher education are to move forward in an inclusive manner.     

从普通高校学生管理规定谈大学体育课成绩与健康标准的融合

依据教育部三个文件,针对目前我国许多高校争论的热点问题:由体育课成绩还是由体质健康标准作为学生能否顺利毕业的依据而进行调查研究.结果表明:学生体育成绩应该是最终决定学生能否毕业的重要条件.体育成绩应该是体育课成绩、体质健康标准和课外体育锻炼的融合.     

平面动力系统的ω(α)极限集在轨道有界时的性质

本文对平面动力系统的ω(α)极限集在轨道有界时的一些性质进行了论述，并对轨道无界情形下其极限集的结构做了初步研究。     

基于MATLAB的大学数学实验

介绍了数学实验的背景,MATLAB用于数学实验的优势,利用MATLAB的图形用户界面(GUI)进行数学实验,给出了利用MATLAB进行数学实验的实验界面,并举例说明利用这种方法进行数学实验教学的优点和作用。     

大学生经典阅读与立德树人——兼论大学生阅读中的“《平凡的世界》现象”

文学经典历来受大学生青睐。《平凡的世界》这部创作于20世纪80年代的文学作品连续位居大学生阅读榜首,展现出独特的“《平凡的世界》现象”。“《平凡的世界》现象”实质是经典的生命力的体现,由经典的思想性和艺术性铸就而成。因此,经典阅读的“成人”价值表现在奠基人的精神来路和理想去路、延拓人的知识视野和思维宽度、实现人的情感构建和思想升华等三方面。在当下经典阅读价值浅化、内容边缘化、阅读方式泛化语境中,要从动机、行为、价值三个层面,指引经典阅读的认识回归、发挥经典阅读的阵地协同、培育经典阅读的育人文化,构建通过经典阅读推进立德树人的现实路径。     

在线健康社区用户参与行为的影响因素研究综述

[目的/意义]在线健康社区是健康问题关注者交流经验、知识和情感的重要平台,而用户参与是社区发展的关键。对用户参与行为的影响因素进行综合评述,可为这方面研究提供系统参考。[方法/过程]从信息生态系统的综合视角出发,分别从信息人、信息、信息技术和信息环境4个维度,系统评述用户参与行为影响因素和影响机理的主要成果和研究现状。[结果/结论]用户参与行为受到信息人、信息、信息技术和信息环境各维度的综合影响,相关成果比较丰富,已经形成较为成熟的研究主题。从社区类型、用户类型、持续参与等方面对未来研究趋势进行展望。     

Mobile users’ information privacy concerns and the role of app permission requests

Recent privacy-related incidents of mobile services have shown that app stores and providers face the challenge of mobile users’ information privacy concerns, which can prevent users from installing mobile apps or induce them to uninstall an app. In this paper, we investigate the role of app permission requests and compare the impact on privacy concerns with other antecedents of information privacy concerns, i.e., prior privacy experience, computer anxiety, and perceived control. To test these effects empirically, we conducted an online survey with 775 participants. Results of our structural equation modeling show that prior privacy experience, computer anxiety, and perceived control have significant effects on privacy concerns. However, concerns for app permission requests have approximately twice as much predictive value than the other factors put together to explain mobile users’ overall information privacy concerns. We expect that our findings can provide a theoretical contribution for future mobile privacy research as well as practical implications for app stores and providers.     

网络环境下查新用户信息行为特点及服务策略

文章分析了网络环境下查新用户信息行为的特点及影响其信息行为的因素,并提出了相应的服务对策,为信息机构提高服务质量提供参考.