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网上咨询服务是网络环境下图书馆信息服务纵深化的主要方式。本文通过对6所大学图书馆的Web调研,提出了目前通信电子类院校图书馆网上咨询服务的主要形式和特点,并就强化网上咨询服务提出了若干对策。  相似文献   
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通过对"过客"意象的分析,认为"过客"有其西方原型——苏鲁支;又有其东方原型——孔子。"过客"是人类整体永恒地"走"的命运的象征;同时也是鲁迅流亡知识分子形象的象征。  相似文献   
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Using the translated contents of the National Institute on Aging (NIA)'s Aging IQ, an educational intervention was delivered to older Korean Americans. The educational program was delivered via two different modalities, Internet-based education (n = 12) and in-class education (n = 11), and the overall feasibility and efficacy were evaluated by the Reach, Efficacy, Adoption, Implementation, and Maintenance (RE-AIM) framework. A high level of completion and overall satisfaction with the program was observed in both groups. Both groups also exhibited a significant improvement in their knowledge about aging after the completion of the educational program. However, at the one-month follow-up, the Internet-based group showed a greater retention of the knowledge gained. The findings not only support the value of education on aging for older ethnic minorities but also suggest the use of the Internet as an integral modality of intervention delivery.  相似文献   
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This study aims to verify the effects of an education program on home renovation for fall prevention among older people, more specifically fall efficacy and home renovation intentions. A quasiexperimental study with nonequivalent control and comparative groups was conducted to demonstrate the effects of the education. A total of 51 older people participated, and fall efficacy and behavioral intentions towards home renovation were measured twice, before and after the education, by survey and in-depth interview. After the education, the fall efficacy of the experimental group had increased more than that of the control and comparative groups. In terms of the behavioral intention towards home renovation, a considerable proportion of the experimental group showed actual behavioral changes in housing improvements; for instance, repairing handrails on staircases or applying antislip spray to their bathroom. The results demonstrate that the provision of appropriate education could be used as a crucial intervention for fall prevention because it can encourage confidence and preventive behaviors.  相似文献   
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International Journal for the Advancement of Counselling - The current study investigated the mediation effect of self-focused attention on the relationship between South Korean novice...  相似文献   
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Recently, interest in single cell analysis has increased because of its potential for improving our understanding of cellular processes. Single cell operation and attachment is indispensable to realize this task. In this paper, we employed a simple and direct method for single-cell attachment and culture in a closed microchannel. The microchannel surface was modified by applying a nonbiofouling polymer, 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer, and a nitrobenzyl photocleavable linker. Using ultraviolet (UV) light irradiation, the MPC polymer was selectively removed by a photochemical reaction that adjusted the cell adherence inside the microchannel. To obtain the desired single endothelial cell patterning in the microchannel, cell-adhesive regions were controlled by use of round photomasks with diameters of 10, 20, 30, or 50 μm. Single-cell adherence patterns were formed after 12 h of incubation, only when 20 and 30 μm photomasks were used, and the proportions of adherent and nonadherent cells among the entire UV-illuminated areas were 21.3%±0.3% and 7.9%±0.3%, respectively. The frequency of single-cell adherence in the case of the 20 μm photomask was 2.7 times greater than that in the case of the 30 μm photomask. We found that the 20 μm photomask was optimal for the formation of single-cell adherence patterns in the microchannel. This technique can be a powerful tool for analyzing environmental factors like cell-surface and cell-extracellular matrix contact.  相似文献   
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This study investigated the value of using a scaffolded critique framework to promote two different types of writing—argumentative writing and explanatory writing—with different purposes within an argument-based inquiry approach known as the Science Writing Heuristic (SWH) approach. A quasi-experimental design with sixth and seventh grade students taught by two teachers was used. A total of 170 students participated in the study, with 87 in the control group (four classes) and 83 in the treatment group (four classes). All students used the SWH templates as an argumentative writing to guide their written work and completed these templates during the SWH investigations of each unit. After completing the SWH investigations, both groups of students were asked to complete the summary writing task as an explanatory writing at the end of each unit. All students’ writing samples were scored using analytical frameworks developed for the study. The results indicated that the treatment group performed significantly better on the explanatory writing task than the control group. In addition, the results of the partial correlation suggested that there is a very strong significantly positive relationship between the argumentative writing and the explanatory writing.  相似文献   
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高等教育对高级专门人才的培养离不创新精神和实践能力。本文阐述了创新精神和实践能力对计算机专业学生的重要性,并就如何培养学生的创新精神和实践能力,在教学环境、课堂教学、教学机制等方面提出了措施和办法。  相似文献   
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In this paper, we propose a new language model, namely, a dependency structure language model, for topic detection and tracking (TDT) to compensate for weakness of unigram and bigram language models. The dependency structure language model is based on the Chow expansion theory and the dependency parse tree generated by a linguistic parser. So, long-distance dependencies can be naturally captured by the dependency structure language model. We carried out extensive experiments to verify the proposed model on topic tracking and link detection in TDT. In both cases, the dependency structure language models perform better than strong baseline approaches.  相似文献   
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