The Use of Augmented Reality Technology in Medical Specimen Museum Tours     

Atsushi Sugiura  Toshihiro Kitama  Masahiro Toyoura  Xiaoyang Mao 《Anatomical sciences education》2019,12(5):561-571

Human anatomical specimen museums are commonly used by medical, nursing, and paramedical students. Through dissection and prosection, the specimens housed in these museums allow students to appreciate the complex relationships of organs and structures in more detail than textbooks could provide. However, it may be difficult for students, particularly novices, to identify the various parts of these anatomical structures without additional explanations from a docent or supplemental illustrations. Recently, augmented reality (AR) has been used in many museum exhibits to display virtual objects in videos captured from the real world. This technology can significantly enhance the learning experience. In this study, three AR-based support systems for tours in medical specimen museums were developed, and their usability and effectiveness for learning were examined. The first system was constructed using an AR marker. This system could display virtual label information for specimens by capturing AR markers using a tablet camera. Individual AR markers were required for all specimens, but their presence in and on the prosected specimens could also be obtrusive. The second system was developed to set the specimen image itself as an image marker, as most specimens were displayed in cross section. Visitors could then obtain the label information presented by AR without any markers intruding on the display or anatomical specimens. The third system was comprised of a head-mounted display combined with a natural click interface. The system could provide visitors with an environment for the natural manipulation of virtual objects with future scalability.  相似文献   

Okinawa's ‘postwar’: some observations on the formation of American military bases in the aftermath of terrestrial warfare1     

Atsushi Toriyama  David Buist 《Inter-Asia Cultural Studies》2013,14(3):400-417

Abstract

By looking at Muhammdiyah's educational programme and examining the discourse of its thinkers concerning modern conditions, this paper explores the ways in which this modernist Islamic movement deals with modernity. The different curricula that Muhammadiyah schools and colleges adopt reflect the tension of its efforts of reconciling religious requirements with those of modernity. The need to prepare students for life in modern times has led Muhammadiyah schools and universities to emphasize the teaching of modern general knowledge and skills, often at the expense of religious subjects. The difficulties of reconciling Islam and modern science, as well as making Islam remain a viable system of values in the midst of industrialization, however, has become a source of energy for Muhammadiyah thinkers to keep searching for new formulations. The fact that the public sphere seems to need an even greater dosage of infusion of Islamic values as Indonesia industrializes and modernizes itself does not discourage them. Their debate indicates a critical understanding of modernity and the challenges and opportunities it offers Muhammadiyah in 21st century Indonesia. Their disagreements show unresolved difficulties as to how modernism and Islam can be fused. They also show, however, a confidence that Islam can be a basis to think of ways of how to confront and shape modernity in Islamic terms.  相似文献   

Comparison of support leg kinetics between side-step and cross-step cutting techniques     

Yuta Suzuki  Michiyoshi Ae  Shunsuke Takenaka  Norihisa Fujii 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(2):144-153

The purpose of this study was to investigate differences in the support leg joint moment and moment power between side-step (SS) and cross-step (CS) cutting techniques with a prescribed 90° cutting angle. Ground reaction forces (1,000 Hz) and three-dimensional kinematics (250 Hz) of SS and CS cutting techniques were collected from 20 male college athletes. Normalised peak knee extension moment was larger in the SS technique than in the CS technique (0.40 ± 0.10 in SS; 0.26 ± 0.08 in CS). In the SS technique, the knee extensors ( ? 0.10 ± 0.06 in SS; ? 0.02 ± 0.04 in CS) and ankle plantarflexors ( ? 0.12 ± 0.05 in SS; ? 0.07 ± 0.03 in CS) did significantly more negative work (normalised). The direction change angle (40.5 ± 8.7° in SS; 33.0 ± 6.8° in CS) and the decrease in horizontal velocity of the centre of mass ( ? 0.63 ± 0.23 m/s in SS; ? 0.31 ± 0.23 m/s in CS) were significantly larger in the SS technique. These results suggest that the SS technique is an effective means of changing running direction at the expense of velocity of the centre of mass and that the CS technique is better for minimising the reduction in horizontal velocity of the centre of mass.  相似文献   

A microfluidic device for on-chip agarose microbead generation with ultralow reagent consumption     

Linda Desbois  Adrien Padirac  Shohei Kaneda  Anthony J. Genot  Yannick Rondelez  Didier Hober  Dominique Collard  Teruo Fujii 《Biomicrofluidics》2012,6(4)

Water-in-oil microdroplets offer microreactors for compartmentalized biochemical reactions with high throughput. Recently, the combination with a sol-gel switch ability, using agarose-in-oil microdroplets, has increased the range of possible applications, allowing for example the capture of amplicons in the gel phase for the preservation of monoclonality during a PCR reaction. Here, we report a new method for generating such agarose-in-oil microdroplets on a microfluidic device, with minimized inlet dead volume, on-chip cooling, and in situ monitoring of biochemical reactions within the gelified microbeads. We used a flow-focusing microchannel network and successfully generated agarose microdroplets at room temperature using the “push-pull” method. This method consists in pushing the oil continuous phase only, while suction is applied to the device outlet. The agarose phase present at the inlet is thus aspirated in the device, and segmented in microdroplets. The cooling system consists of two copper wires embedded in the microfluidic device. The transition from agarose microdroplets to microbeads provides additional stability and facilitated manipulation. We demonstrate the potential of this method by performing on-chip a temperature-triggered DNA isothermal amplification in agarose microbeads. Our device thus provides a new way to generate microbeads with high throughput and no dead volume for biochemical applications.  相似文献   

Putting learning back into learning analytics: actions for policy makers,researchers, and practitioners     

Ifenthaler  Dirk  Gibson  David  Prasse  Doreen  Shimada  Atsushi  Yamada  Masanori 《Educational technology research and development : ETR & D》2021,69(4):2131-2150

Educational technology research and development - This paper is based on (a) a literature review focussing on the impact of learning analytics on supporting learning and teaching, (b) a Delphi...  相似文献   

When Can China Put Tao Xingzhi into Its History? Chu,Z. H., Multiple perspectives on life education (in Chinese)     

Atsushi Makino 《Frontiers of Education in China》2014,9(1):127

  相似文献   

Faces Do Not Capture Special Attention in Children With Autism Spectrum Disorder: A Change Blindness Study   总被引：1，自引：0，他引：1  

Yukiko Kikuchi  Atsushi Senju  Yoshikuni Tojo  Hiroo Osanai  Toshikazu Hasegawa 《Child development》2009,80(5):1421-1433

Two experiments investigated attention of children with autism spectrum disorder (ASD) to faces and objects. In both experiments, children (7- to 15-year-olds) detected the difference between 2 visual scenes. Results in Experiment 1 revealed that typically developing children ( n  = 16) detected the change in faces faster than in objects, whereas children with ASD ( n  = 16) were equally fast in detecting changes in faces and objects. These results were replicated in Experiment 2 ( n  = 16 in children with ASD and 22 in typically developing children), which does not require face recognition skill. Results suggest that children with ASD lack an attentional bias toward others' faces, which could contribute to their atypical social orienting.  相似文献   

Effects of drop sets with resistance training on increases in muscle CSA,strength, and endurance: a pilot study     

Hayao Ozaki  Atsushi Kubota  Toshiharu Natsume  Jeremy P. Loenneke  Takashi Abe  Shuichi Machida 《Journal of sports sciences》2018,36(6):691-696

To investigate the effects of a single high-load (80% of one repetition maximum [1RM]) set with additional drop sets descending to a low-load (30% 1RM) without recovery intervals on muscle strength, endurance, and size in untrained young men. Nine untrained young men performed dumbbell curls to concentric failure 2–3 days per week for 8 weeks. Each arm was randomly assigned to one of the following three conditions: 3 sets of high-load (HL, 80% 1RM) resistance exercise, 3 sets of low-load [LL, 30% 1RM] resistance exercise, and a single high-load (SDS) set with additional drop sets descending to a low-load. The mean training time per session, including recovery intervals, was lowest in the SDS condition. Elbow flexor muscle cross-sectional area (CSA) increased similarly in all three conditions. Maximum isometric and 1RM strength of the elbow flexors increased from pre to post only in the HL and SDS conditions. Muscular endurance measured by maximum repetitions at 30% 1RM increased only in the LL and SDS conditions. A SDS resistance training program can simultaneously increase muscle CSA, strength, and endurance in untrained young men, even with lower training time compared to typical resistance exercise protocols using only high- or low-loads.  相似文献   

Morphological and biochemical responses of Oryza sativa L. (cultivar MR219) to ion beam irradiation   总被引：1，自引：0，他引：1  

Anna Pick Kiong Ling  Ying Chian Ung  Sobri Hussein  Abdul Rahim Harun  Atsushi Tanaka  Hase Yoshihiro 《Journal of Zhejiang University. Science. B》2013,14(12):1132-1143

Objective

Heavy ion beam, which has emerged as a new mutagen in the mutation breeding of crops and ornamental plants, is expected to result in the induction of novel mutations. This study investigates the morphological and biochemical responses of Oryza sativa toward different doses of carbon ion beam irradiation.

Methods

In this study, the dry seeds of O. sativa were irradiated at 0, 20, 40, 60, 80, 100, and 120 Gy, followed by in-vitro germination under controlled conditions. Morphological and biochemical studies were conducted to investigate the morphological and physiological responses of O. sativa towards ion beam irradiation.

Results

The study demonstrated that low doses (10 Gy) of ion beam have a stimulating effect on the height, root length, and fresh weight of the plantlets but not on the number of leaves. Meanwhile, doses higher than 10 Gy caused reductions in all the morphological parameters studied as compared to the control samples. The highest total soluble protein content [(2.11±0.47) mg/g FW] was observed in plantlets irradiated at 20 Gy. All irradiated plantlets were found to have 0.85% to 58.32% higher specific activity of peroxidase as compared to the control samples. The present study also revealed that low doses of ion beam (10 and 20 Gy) had negligible effect on the total chlorophyll content of O. sativa plantlets while 40 Gy had a stimulating effect on the chlorophyll content. Plantlets irradiated between 40 to 120 Gy were shown to be 0.38% to 9.98% higher in total soluble nitrogen content which, however, was not significantly different from the control samples.

Conclusions

Carbon ion beam irradiation administered at low to moderate doses of 10 to 40 Gy may induce O. sativa mutants with superior characteristics.  相似文献   

Effects of work-matched supramaximal intermittent vs. submaximal constant-workload warm-up on all-out effort power output at the end of 2 minutes of maximal cycling     

Naoto Fujii  Hiroki Hara  Yasushi Enomoto  Satoru Tanigawa 《European Journal of Sport Science》2019,19(3):336-344

We tested the hypothesis that work-matched supramaximal intermittent warm-up improves final-sprint power output to a greater degree than submaximal constant-intensity warm-up during the last 30?s of a 120-s supramaximal exercise simulating the final sprint during sports events lasting approximately 2?min. Ten male middle-distance runners performed a 120-s supramaximal cycling exercise consisting of 90?s of constant-workload cycling at a workload corresponding to 110% maximal oxygen uptake (VO_2max) followed by 30?s of maximal-effort cycling. This exercise was preceded by 1) no warm-up (Control), 2) a constant-workload cycling warm-up at a workload of 60%VO_2max for 6?min and 40?s, or 3) a supramaximal intermittent cycling warm-up for 6?min and 40?s consisting of 5 sets of 65?s of cycling at a workload of 46%VO_2max?+?15?s of supramaximal cycling at a workload of 120%VO_2max. By design, total work was matched between the two warm-up conditions. Supramaximal intermittent and submaximal constant-workload warm-ups similarly increased 5-s peak (590?±?191 vs. 604?±?215W, P?=?0.41) and 30-s mean (495?±?137 vs. 503?±?154W, P?=?0.48) power output during the final 30-s maximal-effort cycling as compared to the no warm-up condition (5-s peak: 471?±?165W; 30-s mean: 398?±?117W). VO₂ during the 120-s supramaximal cycling was similarly increased by the two warm-ups as compared to no-warm up (P?≤?0.05). These findings show that work-matched supramaximal intermittent and submaximal constant-workload warm-ups improve final sprint (～30?s) performance to similar extents during the late stage of a 120-s supramaximal exercise bout.  相似文献