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排序方式: 共有66条查询结果,搜索用时 15 毫秒
1.
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
2.
Teachers are confronted with complex and unexpected classroom situations that not only demand knowledge but also social–emotional competencies. Consequently, researchers have tried to identify conditions that support the development of relevant abilities in this domain. This study examined the frequently stated, but not yet empirically investigated, idea of immersion in the arts as a facilitator of aspects of empathy and tolerance of ambiguity (ToA). The paper compares Waldorf student-teachers who are strongly immersed in arts activities in their training with non-Waldorf student-teachers who do not participate in the arts on the constructs of empathy and ToA. Results indicated higher scores in the Waldorf group on both emotional and cognitive dimensions of the empathy construct and marginally higher scores on ToA. The results of this study and subsequent discussion suggest a new perspective on the relation between arts engagement and the specific domain of social–emotional competencies. 相似文献
3.
The Italian academic profession is subject to complex bureaucratic structures and many strains as the result of rapid academic expansion but very limited resources. The ladder up the academic profession is both complicated and very difficult. Norms of professionalism are in conflict with the traditional patron system. This paper analyzes the current situation of the academic profession in Italian universities, and stresses a discussion of the career ladder and how it works in the academic system.Data for this paper have been collected as part of a research grant no. 73.00982.09 from the Consiglio Nazionale delle Ricerche. 相似文献
4.
Guido?Candela Paolo?Figini Antonello?E.?ScorcuEmail author 《Journal of Cultural Economics》2004,28(4):285-302
This paper proposes a price index for artists adjusted for the quality of the paintings, based on the ratio between the average market price and the average pre-sale estimate for paintings. We apply this methodology to a group of selected artists and schools presented in auctions worldwide in the period 1990–2001. A comparison with quality unadjusted and hedonic indices is also conducted.JEL Classification: C10, Z11 相似文献
5.
Luca Lanotte Giovanna Tomaiuolo Chaouqi Misbah Lionel Bureau Stefano Guido 《Biomicrofluidics》2014,8(1)
The confined flow of red blood cells (RBCs) in microvasculature is essential for oxygen delivery to body tissues and has been extensively investigated in the literature, both in vivo and in vitro. One of the main problems still open in microcirculation is that flow resistance in microcapillaries in vivo is higher than that in vitro. This discrepancy has been attributed to the glycocalyx, a macromolecular layer lining the inner walls of vessels in vivo, but no direct experimental evidence of this hypothesis has been provided so far. Here, we investigate the flow behavior of RBCs in glass microcapillaries coated with a polymer brush (referred to as “hairy” microcapillaries as opposed to “bare” ones with no coating), an experimental model system of the glycocalyx. By high-speed microscopy imaging and image analysis, a velocity reduction of RBCs flowing in hairy microcapillaries as compared to bare ones is indeed found at the same pressure drop. Interestingly, such slowing down is larger than expected from lumen reduction due to the polymer brush and displays an on-off trend with a threshold around 70 nm of polymer brush dry thickness. Above this threshold, the presence of the polymer brush is associated with an increased RBC deformation, and RBC velocity is independent on polymer brush thickness (at the same pressure drop). In conclusion, this work provides direct support to the hypothesis that the glycocalyx is the main factor responsible of the higher flow resistance found in microcapillaries in vivo. 相似文献
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7.
Recent studies conclude that teachers are important for student learning but it remains uncertain what actually determines effective teaching. This study directly peers into the black box of educational production by investigating the relationship between lecture style teaching and student achievement. Based on matched student-teacher data for the US, the estimation strategy exploits between-subject variation to control for unobserved student traits. Results indicate that traditional lecture style teaching is associated with significantly higher student achievement. No support for detrimental effects of lecture style teaching can be found even when evaluating possible selection biases due to unobservable teacher characteristics. 相似文献
8.
We have evaluated the effects of condensed water on limestone surfaces through a procedure that foresaw the cooling of the samples before their exposition to the open air, so that the condensation phenomena could occur easily. The effects of the condensed water were evaluated by measuring the weight change of the samples, through SEM observations and analysis of the 3-D profile, using laser profilometer. The results show the weak action of condensed water on the stone surface, particularly if compared with that of rain. 相似文献
9.
We tested a California sea lion for visual oddity learning by presenting problems composed of three two-dimensional black-and-white
stimuli, two identical (S−) and one different (S+). In the first experimental stage, a single problem per session was presented
until learning criterion was reached. In the second experimental stage, all problems were presented only five times in succession;
then a new problem was introduced (six problems/session). In the third experimental stage, each problem was presented only
once. The sea lion mastered all stages of oddity learning. A final transfer test with oddity problems composed of completely
new stimuli yielded performance significantly above chance. Data analyses suggested learning of specific stimulus properties
in the first stage, learning set formation in the second stage, but oddity conceptualization in the third stage. 相似文献
10.