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排序方式: 共有199条查询结果,搜索用时 16 毫秒
41.
网络检索系统研究进展综述   总被引:3,自引:0,他引:3  
Web上大量的异构、分布、动态的信息造成了“信息过载”。如何在传统信息检索技术的基础上开展针对Web的信息检索工作已经成为一项重要的研究课题。笔者对近年来网络检索技术进行综述,从网络检索系统分类、网络信息获取、网络信息检索相关技术、网络检索方法等方面较全面地介绍了这一领域的发展概况,并对未来网络检索系统的发展趋势提出展望。  相似文献   
42.
The recent professionalization of rugby union makes it an excellent achievement context in which to examine the relationship between achievement goal orientations and the perceived purposes of sport as a function of competitive standard. During the 1996-97 season, 73 professional and 106 amateur rugby players in England completed a series of questionnaires assessing their achievement goal orientations, beliefs about the purposes of rugby and demographic information. The results of a canonical correlation analysis revealed a conceptually coherent relationship between achievement goal orientations and purposes of rugby. Specifically, a high ego/moderate task orientation was positively related to fitness, aggression and financial remuneration as significant purposes of rugby. Professional players scored higher on those purposes of rugby related to aggression, financial remuneration and fitness, but lower on sportspersonship than amateur players. Professional players also reported higher task and ego goal orientations than amateur players. The findings are discussed in terms of the differences in lifestyle and motivation of professional and amateur rugby union players.  相似文献   
43.
This article examines the extent to which Short Message Service (SMS) messages are breaking down communication barriers among deaf people and between deaf and hearing people. It is predicted that deaf texters will use SMS to increase the bonds between themselves in deaf communities, creating new opportunities to develop relationships, understanding, and intimacy with those not physically present. The most exciting question raised by this article is whether those kinds of relationships, understanding, and intimacy will develop to the same extent with hearing colleagues, friends, and intimates.  相似文献   
44.
在软土地区修建高等级公路,沉降与稳定是最突出的问题,所以在施工过程中要进行动态观测,以保证路堤施工过程中的安全与稳定。本文结合江苏省数条修建于软土地基上高速公路沉降观测的实践,对实测沉降数据特征进行分析,并指出产生这些特征的原因以及应该避免的问题,旨在为从事软基沉降变形观测和利用实测数据进行施工控制,沉降预测、参数反演的技术和研究人员提供参考.  相似文献   
45.
微网控制综述   总被引:1,自引:0,他引:1  
随着新能源的发展,智能微网也成了研究热点。本文首先介绍了微网概念提出的背景,及其基本结构和应用。而后对于微网常见的控制策略进行了分析总结。  相似文献   
46.
王蘅 《山西档案》2003,(3):9-12
本文阐述了借鉴、引用质量管理思想与方法进行企业档案管理前端控制的可行性和必要性,质量管理与档案管理的关系,以及可以解决的档案管理问题。认为运用质量管理方法是目前实现企业档案管理前端控制,构建真正的、全面的“文档管理一体化”模式的重要手段。  相似文献   
47.
介绍了在小学自然教学中,将演示实验让给学生做之后出现的新现象,从而证明了将部分演示实验交给学生做的教学实践符合自主学习的教育理念。  相似文献   
48.
现代化教育技术的广泛应用是教育现代化的重要标志之一。要实现教育的整体性改革,必须借助现代化教育技术,它能大大促进理论与实践的结合,充分发挥学生的认知主体作用,真正做到因材施教,最终达到改善学习效果,提高学生综合能力的目的。  相似文献   
49.
The authors conducted a treatment outcome study on 79 patients engaged in a program for maltreating parents. Treatment modalities included individual psychotherapy and counseling, group therapy, home visiting, and telephone advocacy with the duration of treatment ranging from 6 sessions to 36 months. On the basis of ratings by the primary therapist consensually validated by other staff, 23 of the sample demonstrated at least symptomatic improvement, whereas 28% improved significantly. Overall improvement was highly correlated with more subtle indices of childrearing, perception of the child, object relations, insight, and capacity for self-observation. The profiles of those maltreating parents who improved and those who did not emerged with respect to the impact of critical demographic, psychological, and therapeutic variables. Favorable outcomes were unlikely among parents who themselves had a history of maltreatment, who inflicted the more severe injuries, who entered the program involuntarily or who terminated against advice; while positive results were more prevalent in those parents with a less abusive childhood experience and who perceived a need for involvement in the program. Home visiting and advocacy appeared to enhance the potential for improvement.  相似文献   
50.

Pathophysiology describes and explains the physiological dysfunctions that occur in human diseases. Pathophysiology is content heavy, often leading to medical/biomedical science students adopting a surface approach to learning. To encourage more engagement, we developed clinical simulation practical classes using manikin patients. Students considered these were more effective than paper-based case studies. However, they found the first encounter with the manikins daunting. In addition, they did not have a strong sense of responsibility towards the outcome of their treatment choices largely because they recognized this as a simulated experience. Video is a powerful teaching tool to demonstrate situations that are difficult to explain in words, to see theory applied to practice or create enthusiasm and confidence in the viewer regarding the use of new practices. In this study, we evaluated the effectiveness of exposure to a video scenario, in which a high-fidelity manikin was used as the ‘patient’, before the students’ own interactions with the manikin in later classes. Survey results suggested that the students felt more engaged with the case study. They felt the video helped them appreciate aspects of clinical communication and prepare for their time in the simulation laboratory interacting with the manikin. They saw the video as a useful addition to the written case study notes. Their criticisms were mainly around the production quality. This study supports the use of video scenarios as a valuable adjunct to the teaching of pathophysiology to medical/biomedical science students when using either paper- or simulation-based case studies.

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