Neuroanatomy Learning: Augmented Reality vs. Cross-Sections     

Dylan J.H.A. Henssen  Loes van den Heuvel  Guido De Jong  Marc A.T.M. Vorstenbosch  Anne-Marie van Cappellen van Walsum  Marianne M. Van den Hurk  Jan G.M. Kooloos  Ronald H.M.A. Bartels 《Anatomical sciences education》2020,13(3):353-365

Neuroanatomy education is a challenging field which could benefit from modern innovations, such as augmented reality (AR) applications. This study investigates the differences on test scores, cognitive load, and motivation after neuroanatomy learning using AR applications or using cross-sections of the brain. Prior to two practical assignments, a pretest (extended matching questions, double-choice questions and a test on cross-sectional anatomy) and a mental rotation test (MRT) were completed. Sex and MRT scores were used to stratify students over the two groups. The two practical assignments were designed to study (1) general brain anatomy and (2) subcortical structures. Subsequently, participants completed a posttest similar to the pretest and a motivational questionnaire. Finally, a focus group interview was conducted to appraise participants’ perceptions. Medical and biomedical students (n = 31); 19 males (61.3%) and 12 females (38.7%), mean age 19.2 ± 1.7 years participated in this experiment. Students who worked with cross-sections (n = 16) showed significantly more improvement on test scores than students who worked with GreyMapp-AR (P = 0.035) (n = 15). Further analysis showed that this difference was primarily caused by significant improvement on the cross-sectional questions. Students in the cross-section group, moreover, experienced a significantly higher germane (P = 0.009) and extraneous cognitive load (P = 0.016) than students in the GreyMapp-AR group. No significant differences were found in motivational scores. To conclude, this study suggests that AR applications can play a role in future anatomy education as an add-on educational tool, especially in learning three-dimensional relations of anatomical structures.  相似文献   

The historical contingency of rationality: The social sciences and the Cold War     

Jeroen van Dongen 《Metascience》2015,24(1):71-76

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Learning through artful knowing     

Pleuntje van Meer 《Action Learning: Research and Practice》2016,13(3):237-251

Unfinished and ongoing exploration, Oil Painting, 1.30?*?1?m, September 2015.  相似文献   

我国图书情报领域期刊论文的科学数据引用特征研究     

丁文姚  李健  韩毅 《图书情报工作》2019,63(22):118-128

[目的/意义] 探索期刊论文科学数据引用特征与规律不仅有助于描述学科领域对科学数据的利用情况，还能够揭示学术成果表达中的数据引用模式。[方法/过程] 以我国图书情报领域6种期刊2017年与2018年第一期刊载论文为样本，结合国家标准《信息技术科学数据引用》的引用元素，采用内容分析法从9个维度对样本论文的科学数据引用行为进行数据编码，应用统计学方法描述图书情报领域期刊论文科学数据引用特征并探索不同维度特征间的关联关系。[结果/结论] 图书情报领域期刊论文广泛引用来自国内外的统计整理类科学数据，对期刊论文中个人研究科学数据的引用量较大；科学数据引用标注方式与科学数据类型存在一定对应关系，但多样化的标注方式缺乏统一性；二手引用现象较为突出，二手引用程度与科学数据创建者类型相关。  相似文献   

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor     

Haicheng Li  Yinji Ma  Ziwei Liang  Zhouheng Wang  Yu Cao  Yuan Xu  Hua Zhou  Bingwei Lu  Ying Chen  Zhiyuan Han  Shisheng Cai  Xue Feng 《国家科学评论(英文版)》2020,7(5):849

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.  相似文献   

《四库全书总目》之《开元天宝遗事》提要辨正     

吴晗 《中国典籍与文化》2020,(2):91-101

《开元天宝遗事》为宋前记载唐开元天宝年间重要史料的笔记小说,学界目前有两种观点:一、洪迈认定为伪作,并否定其价值;二、《四库全书总目》以苏轼《开元天宝遗事四绝句》及司马光《资治通鉴》有"张彖指杨国忠为冰山语"为证,为《开元天宝遗事》辩护。经考证苏轼所作诗与此书无关,"张彖指杨国忠为冰山语"亦见于孔平仲《续世说》,与司马光同时,疑另有渊源。《四库全书总目》观点不足取,洪迈之说当可信。洪迈之言记录此书较早成书流传情况,且《遗事》的成书与流播,反映了早期笔记小说成书过程中不断被增扩的轨迹,进一步印证《总目》所言有失。  相似文献   

Chemical composition and antioxidant activities of essential oils from different parts of the oregano     

Fei Han  Guang-qiang Ma  Ming Yang  Li Yan  Wei Xiong  Ji-cheng Shu  Zhi-dong Zhao  Han-lin Xu 《Journal of Zhejiang University. Science. B》2017,18(1):79-84

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Educational leadership and pupil achievement in primary education     

W. van de Grift  A.A.M. Houtveen 《School Effectiveness & School Improvement》2013,24(4):373-389

Educational leadership can be defined as the ability of a principal to initiate school improvement, to create a learning-oriented educational climate, and to stimulate and supervise teachers in such a way that the latter may execute their tasks as effectively as possible. In 1989, 1993, and 1998, teacher perceptions of educational leadership of principals in Dutch elementary education were evaluated by means of a Rasch-scale. It turned out that the educational leadership of Dutch principals has grown considerably. In both 1989 and 1993 the effect of educational leadership on pupil achievement was investigated. While in 1989 no significant relationship was found, the results of 1993 show a significant relationship between educational leadership and average pupil achievement over 3 successive years corrected for school environment.  相似文献   

Interactive policy-making: The principles     

C. van Woerkum 《The Journal of Agricultural Education and Extension》2013,19(4):199-212

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台湾地区图书馆RDA实施对大陆高校图书馆的启示     

朱涵  江丽萍 《山东图书馆季刊》2015,(3):38-41

本文对台湾地区图书馆实施RDA的过程做了详细的介绍,包括了其筹备工作、具体开展情况,以及RDA开展调查结果。并总结了台湾地区图书馆具体实施RDA的经验。结合大陆地区高校图书馆的实际情况,借鉴台湾地区图书馆相关经验,对大陆地区高校图书馆具体使用RDA规则开展编目工作提出了几点建议。  相似文献