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It is essential for medical students to learn and comprehend human anatomy in three dimensions (3D). With this in mind, a new system was designed in order to integrate anatomical dissections with diagnostic computed tomography (CT) radiology. Cadavers were scanned by CT scanners, and students then consulted the postmortem CT images during cadaver dissection to gain a better understanding of 3D human anatomy and diagnostic radiology. Students used handheld digital imaging and communications in medicine viewers at the bench‐side (OsiriX on iPod touch or iPad), which enabled “pixel‐to‐tissue” direct comparisons of CT images and cadavers. Students had lectures and workshops on diagnostic radiology, and they completed study assignments where they discussed findings in the anatomy laboratory compared with CT radiology findings. This teaching method for gross and radiological anatomy was used beginning in 2009, and it yielded strongly positive student perspectives and significant improvements in radiology skills in later clinical courses. Anat Sci Educ 7: 438–449. © 2014 American Association of Anatomists.  相似文献   
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因特网已成为全球性的信息环境,我们可以跨越时空获取信息资源。然而,当用户使用自身社区的术语和元数据方案来检索信息时,现在的因特网技术还没有成熟到能提供专业信息设施。元数据担任很重要的角色来帮助实现社区导向的信息环境。本文进行了两项案例研究,包括建立专业主题词表(用于图书馆和图书馆信息科学资源主题网关(LIS)的核心主题词表)和用于地方社区门户网站的主题词表。从这两个案例可以看出小型的主题词表对专业服务是非常有用的,并且维护工作对词表的建立和应用是至关紧要的。为了在网络上建立专业信息环境,我们必须解决对元数据方案来说相悖的两个需求——社区中的专业化(或者本地化)和社区之间的互操作。这篇文章提供了一个概念模型来理解解决这个问题所要涉及的诸多方面。  相似文献   
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This paper discusses some key issues for digital archives and metadata in a networked information environment to keep our community memory for the future. The paper is based primarily on the experiences and lessons learnt by the author from his research activities on metadata and digital archives. The author participated in a study group on digital archives hosted by the Ministry of Internal Affairs and Communications of the Japanese Government from February 2011 to March 2012. The group discussed the promotion of digital archives in Japan, particularly at memory institutions. The Great East Japan Earthquake of 11 March 2011 caused serious damage in the north-eastern part of Japan, especially the Pacific coastal regions. This disaster significantly affected the discussions of the group. The basic lesson that the author learned is that digital archives built on a robust information environment are essential for keeping our community memory safe for the future. Not only do the primary digital resources need to be properly maintained and preserved for the future but also secondary resources, metadata and meta-metadata. We need to use Linked Open Data technologies to enhance the usability of such digital resources in the archives.  相似文献   
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In this paper, we network five frameworks (cognitive demand, lesson cohesion, cognitive engagement, collective argumentation, and student contribution) for an analytic approach that allows us to present a more holistic picture of classrooms which engage students in justifying. We network these frameworks around the edges of the instructional triangle as a means to coordinate them to illustrate the observable relationships among teacher, students(s), and content. We illustrate the potential of integrating these frameworks via analysis of two lessons that, while sharing surface level similarities, are profoundly different when considering the complexities of a classroom focused on justifying. We found that this integrated comparison across all dimensions (rather than focusing on just one or two) was a useful way to compare lessons with respect to a classroom culture that is characterized by students engaging in justifying.

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Pecking at the food key was recorded for 4 pigeons given restricted access to food. The access period was set at a fixed time in a light-dark cycle, continuous dark, or continuous light. The pecking activity occurred a few hours before onset of the access period in all three conditions. When the bird was again given free access to food after being released from restricted access, its pecking rhythm free-ran in the continuous dark. The initial phase of the rhythm coincided with the onset of the food-anticipatory pecking in the previous condition. These results suggest that the bird anticipated food access, based on its biological clock mechanism. When the access period was set in the dark phase of the light-dark cycle, anticipatory pecking did not occur, although pecking actually occurred during the access period. The pigeon’s activity is reduced during the dark phase of the light-dark cycle. Therefore, the bird’s activity level was probably too low to shape the anticipatory response, even if the access period was stored in memory in the biological clock.  相似文献   
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Coauthorship is increasing across all areas of scholarship. Despite this trend, dissertations as sole-authored monographs are still revered as the cornerstone of doctoral education. As students learn the norms and communicative behaviors of their field during their doctoral education, do they also learn collaborative behaviors? This study investigated this issue through triangulation of 30 interviews, 215 questionnaires, and bibliometric analyses of 97 CVs in the field of library and information science (LIS). The findings demonstrate that collaboration occurs in about half of advisee/advisor relationships and is primarily understood as research dissemination outside the dissertation. Respondents reported that the dissertation was not and should not be considered a collaborative product. The discussion also includes a commentary about grant funding and the implications for this on models of academic scholarship and research production.  相似文献   
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There are many indicators of journal quality and prestige. Although acceptance rates are discussed anecdotally, there has been little systematic exploration of the relationship between acceptance rates and other journal measures. This study examines the variability of acceptance rates for a set of 5094 journals in five disciplines and the relationship between acceptance rates and JCR measures for 1301 journals. The results show statistically significant differences in acceptance rates by discipline, country affiliation of the editor, and number of reviewers per article. Negative correlations are found between acceptance rates and citation-based indicators. Positive correlations are found with journal age. These relationships are most pronounced in the most selective journals and vary by discipline. Open access journals were found to have statistically significantly higher acceptance rates than non-open access journals. Implications in light of changes in the scholarly communication system are discussed.  相似文献   
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Research topics and research communities are not disconnected from each other: communities and topics are interwoven and co-evolving. Yet, scientometric evaluations of topics and communities have been conducted independently and synchronically, with researchers often relying on homogeneous unit of analysis, such as authors, journals, institutions, or topics. Therefore, new methods are warranted that examine the dynamic relationship between topics and communities. This paper examines how research topics are mixed and matched in evolving research communities by using a hybrid approach which integrates both topic identification and community detection techniques. Using a data set on information retrieval (IR) publications, two layers of enriched information are constructed and contrasted: one is the communities detected through the topology of coauthorship network and the other is the topics of the communities detected through the topic model. We find evidence to support the assumption that IR communities and topics are interwoven and co-evolving, and topics can be used to understand the dynamics of community structures. We recommend the use of the hybrid approach to study the dynamic interactions of topics and communities.  相似文献   
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