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1.
Kosuke Kaneko Yuriko Saito Yukari Nohara Eriko Kudo Masanori Yamada 《The Journal of Academic Librarianship》2018,44(5):569-581
This paper reports research results of the proposed experiential learning using a game-based educational material. The educational material was an application running on a mobile device and was supported for learners to study university library instruction. During the experiential learning, the learners answered several quizzes provided from the educational material. The quizzes were including experiential contents such as actually to find an academic journal or to reserve a learning room. In order to evaluate learning effectiveness of the experiential learning, this research made a comparative experiment. The experimental group used the educational material and the control group used another educational material of e-learning (non-experiential) but the contents was almost same as the contents of the experiential learning. The comparative experiment took several evaluation elements such as pre-/post-test scores, delayed-test scores and learning motivation scores based on IMMS of ARCS model. The experimental results revealed that experiential learning was superior for the several elements of these metrics. This research, furthermore, analyzed learner's operation data to the educational material and learner's behavior data during the learning in the experimental group. The analyzing results showed three types of the learning behaviors and indicated that an instructor needs to adopt suitable instructional design to each type to bring superior learning effectiveness. 相似文献
2.
Yukari Takimoto Amos 《International journal of qualitative studies in education》2016,29(8):1002-1015
AbstractThis qualitative study investigated the negative impacts minority teacher candidates receive from white teacher candidates in a required multicultural education class. The findings reveal that four teacher candidates of color had difficulty positioning themselves among the overwhelming silencing power of whiteness in the class. The white students were tactful at evading power and race and flattening the existing hierarchical power relations through the discourses of colorblindness and by preying on the minority instructor. Their understanding of diversity was also shallow. On the other hand, the teacher candidates of color were afraid that they might be labeled as the ones who spoke up against the white students and fearful of the possibility of retaliation and ostracism from the white peers. It seems that the teacher education program’s structure allowed the white candidates to impose strong negative peer pressure on the teacher candidates of color. 相似文献
3.
Kawamoto R Miyagi O Ohashi J Fukashiro S 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(2):187-198
The aim of this study was to identify critical kinetic variables that lead to increased ball velocity during a side-foot passing kick in soccer. Seven experienced male soccer players and eight inexperienced players participated in the experiment. They were instructed to perform side-foot kicks along the ground with maximum effort with an eye on the target line. The joint angles, angular velocities, and torques of the kicking leg were determined based on the three-dimensional kinematic data. The mean ball speed of the experienced group (21.4 +/- 1.5 m/s) was significantly faster than that of the inexperienced group (16.0 +/- 1.0m/s; P < 0.001). The motions of the inexperienced players tended to be less dynamic than those of the experienced players. The most noticeable difference in the kinetics of the kick was found in the hip flexion torque throughout the back-swing phase until the leg-cocking phase. The mean peak value of the experienced group (168 +/- 20 N x or m) was significantly greater than that of the inexperienced group (94 +/- 17 N x or m; P < 0.001). To increase ball speed during a side-foot passing kick, the generation of hip-flexion torque during the earlier stage of kicking is critical. 相似文献
4.
Yukari Seko 《Learning Inquiry》2008,2(3):181-199
Internet-mediated joint suicides or “Net group suicides” (Net shinjū) has become a significant social problem in Japan since 2002. Despite a privileged view of suicide-related cyberspaces as
a murky underworld, there has been little study about how the participants of such spaces interact and perform their “suicidal”
identity. Viewing cyberspace as a unique discursive playground that sprouts a myriad of transgressive narratives, this paper
examines “Suicide Club” (Jisatsu Club) an online discussion forum that facilitated the largest “Net group suicide” in Japanese history. A thematic content analysis
of actual postings on “Suicide Club” reveals the double-edged nature of the forum. While some participants were determined
to seek suicide companions or what I metaphorically call “suicide machines,” others used the board as a social outlet to freely
disclose their pent-up struggles, attempting to collectively transgress social taboos of suicide.
相似文献
| Yukari SekoEmail: |
5.
Tsuyoshi NakamuraHiroshi Ohashi 《Research Policy》2012,41(4):770-779
This paper examines intra-plant diffusion of new technology in the Japanese steel industry. The introduction of the basic oxygen furnace (BOF) was the greatest breakthrough in steel refining in the last century. Using unique panel data, the paper estimates total factor productivity by technology type, and associates the estimates with intra-plant diffusion. The paper finds that intra-plant diffusion accounts for about a half of the industry productivity growth. Large plants are likely to adopt the new technology earlier, but retain the old technology longer, than their smaller counterparts. 相似文献
6.
Immunoassay is one of the important applications of microfluidic chips and many methodologies were reported for decreasing sample∕reagent volume, shortening assay time, and so on. Micro-enzyme-linked immunosorbent assay (micro-ELISA) is our method that utilizes packed microbeads in the microfluidic channel and the immunoreactions are induced on the beads surface. Due to the large surface-to-volume ratio and small analytical volume, excellent performances have been verified in assay time and sample∕reagent volume. In order to realize the micro-ELISA, one of the important processes is the immobilization of antibody on the beads surface. Previously, the immobilization process was performed in a macroscale tube by physisorption of antibody, and long time (2 h) and large amount of antibody (or high concentration) were required for the immobilization. In addition, the processes including the reaction and washing were laborious, and changing the analyte was not easy. In this research, we integrated the immobilization process into a microfluidic chip by applying the avidin-biotin surface chemistry. The integration enabled very fast (1 min) immobilization with very small amount of precious antibody consumption (100 ng) for one assay. Because the laborious immobilization process can be automatically performed on the microfluidic chip, ELISA method became very easy. On-demand immunoassay was also possible just by changing the antibodies without using large amount of precious antibodies. Finally, the analytical performance was investigated by measuring C-reactive protein and good performance (limit of detection <20 ng∕ml) was verified. 相似文献
7.
Yukari Takimoto Amos 《Equity & Excellence in Education》2016,49(1):41-56
ABSTRACTIn response to the increasing number of Spanish-speaking students at public schools, Spanish-speaking teachers are in demand. In regards to this high demand, how are Latina/o bilingual education teachers treated at school? Using critical race theory's counter-stories, this study investigated the working conditions of two Latina bilingual teachers. The participants’ stories reveal that the schools found the participants’ language skills to be both financially and instructionally beneficial. However, the participants experienced heavy workloads, which did not offer them the time and opportunity to develop stronger professional networks at school. They began to feel isolated and marginalized from their colleagues. Although eagerly hired by their respective school administrators, it seems that the participants were systematically exploited by the schools for which they worked. 相似文献
8.
Emilie Weibull Shunsuke Matsui Manabu Sakai Helene Andersson Svahn Toshiro Ohashi 《Biomicrofluidics》2013,7(6)
Understanding biomolecular gradients and their role in biological processes is essential for fully comprehending the underlying mechanisms of cells in living tissue. Conventional in vitro gradient-generating methods are unpredictable and difficult to characterize, owing to temporal and spatial fluctuations. The field of microfluidics enables complex user-defined gradients to be generated based on a detailed understanding of fluidic behavior at the μm-scale. By using microfluidic gradients created by flow, it is possible to develop rapid and dynamic stepwise concentration gradients. However, cells exposed to stepwise gradients can be perturbed by signals from neighboring cells exposed to another concentration. Hence, there is a need for a device that generates a stepwise gradient at discrete and isolated locations. Here, we present a microfluidic device for generating a stepwise concentration gradient, which utilizes a microwell slide''s pre-defined compartmentalized structure to physically separate different reagent concentrations. The gradient was generated due to flow resistance in the microchannel configuration of the device, which was designed using hydraulic analogy and theoretically verified by computational fluidic dynamics simulations. The device had two reagent channels and two dilutant channels, leading to eight chambers, each containing 4 microwells. A dose-dependency assay was performed using bovine aortic endothelial cells treated with saponin. High reproducibility between experiments was confirmed by evaluating the number of living cells in a live-dead assay. Our device generates a fully mixed fluid profile using a simple microchannel configuration and could be used in various gradient studies, e.g., screening for cytostatics or antibiotics. 相似文献
9.
Reagan Curtis Yukari Okamoto Lisa Marie Weckbacher 《Early childhood research quarterly》2009,24(3):325-336
We examined preschool children's use of count information in making quantity judgments. Study 1 involved 35 children 3–5 years old using a balance-scale task to judge relative quantity with or without count information provided. Study 2 replicated and extended the exploration as 54 children 3–4 years old judged relative quantity in multiple counting contexts. Children who were given count information successfully used count information in quantity evaluation when visual cues were not useful. Limited experience of counting skills, strategy choice, and limited processing capacity are each discussed as potential explanations. Implications for early childhood practice and teacher education, as well as directions for future research are explored. 相似文献
10.
Catherine D. Bruce Brent Davis Nathalie Sinclair Lynn McGarvey David Hallowell Michelle Drefs Krista Francis Zachary Hawes Joan Moss Joanne Mulligan Yukari Okamoto Walter Whiteley Geoff Woolcott 《Educational Studies in Mathematics》2017,95(2):143-161
This paper finds its origins in a multidisciplinary research group’s efforts to assemble a review of research in order to better appreciate how “spatial reasoning” is understood and investigated across academic disciplines. We first collaborated to create a historical map of the development of spatial reasoning across key disciplines over the last century. The map informed the structure of our citation search and oriented an examination of connection across disciplines. Next, we undertook a network analysis that was based on highly cited articles in a broad range of domains. Several connection gaps—that is, apparent blockages, one-way flows, and other limitations on communications among disciplines—were identified in our network analysis, and it was apparent that these connection gaps may be frustrating efforts to understand the conceptual complexity and the educational significance of spatial reasoning. While these gaps occur between the academic disciplines that we evaluated, we selected a few examples for closer analysis. To illustrate how this lack of flow can limit development of the field of mathematics education, we selected cases where it is evident that researchers in mathematics education are not incorporating the important work of mathematicians, psychologists, and neuroscientists—and vice versa. Ultimately, we argue, a more pronounced emphasis on transdisciplinary (versus multidisciplinary or interdisciplinary) research might be timely, and perhaps even necessary, in the evolution of educational research. 相似文献