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Arslan Okan Haser Çiğdem Van Zoest Laura R. 《Journal of Mathematics Teacher Education》2022,25(4):429-452
Journal of Mathematics Teacher Education - To better understand the critical early years of teaching and teacher identity development, this study explored the mathematics teacher identity of two... 相似文献
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This article analyzes Free Rice within the context of “the rise of the ludic sublime,” where video games are hailed as the solution to highly sophisticated political problems. As part of what we call practices of “philitainment,” Free Rice, we argue, functions within the political domain of what Jodi Dean has termed “communicative capitalism” and therefore both captures resistance and actually solidifies global capitalism. Ultimately, this case study of Free Rice reveals ways in which practices of philitainment signal the proliferation of a convergence between the technological sublime and neoliberal politics through which the disinvestment of the state from social problems is legitimized and reproduced through a reconfiguration of citizenship in terms of techno-consumerism. 相似文献
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AbstractThe arrangement of response options in multiple-choice (MC) items, especially the location of the most attractive distractor, is considered critical in constructing high-quality MC items. In the current study, a sample of 496 undergraduate students taking an educational assessment course was given three test forms consisting of the same items but the positions of the most attractive distractor varied across the forms. Using a multiple-indicators–multiple-causes (MIMIC) approach, the effects of the most attractive distractor's positions on item difficulty were investigated. The results indicated that the relative placement of the most attractive distractor and the distance between the most attractive distractor and the keyed option affected students’ response behaviors. Moreover, low-achieving students were more susceptible to response-position changes than high-achieving students. 相似文献
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In this study, an artificial neural network （ANN） model for studying the strength properties of steel fiber reinforced concrete （SFRC） containing fly ash was devised. The mixtures were prepared with 0 wt%, 15 wt%, and 30 wt% of fly ash, at 0 vol.%, 0.5 vol.%, 1.0 vol.% and 1.5 vol.% of fiber, respectively. After being cured under the standard conditions for 7, 28, 90 and 365 d, the specimens of each mixture were tested to determine the corresponding compressive and flexural strengths. The pa- rameters such as the amounts of cement, fly ash replacement, sand, gravel, steel fiber, and the age of samples were selected as input variables, while the compressive and flexural strengths of the concrete were chosen as the output variables. The back propagation learning algorithm with three different variants, namely the Levenberg-Marquardt （LM）, scaled conjugate gradient （SCG） and Fletcher-Powell conjugate gradient （CGF） algorithms were used in the network so that the best approach can be found. The results obtained from the model and the experiments were compared, and it was found that the suitable algorithm is the LM algorithm. Furthermore, the analysis of variance （ANOVA） method was used to determine how importantly the experimental parameters affect the strength of these mixtures. 相似文献
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Muhammed M. Atakan Yasemin Güzel Süleyman Bulut ükran N. Koar Glenn K. McConell Hüseyin H. Turnagl 《运动与健康科学(英文)》2021,10(4):478
BackgroundHigh-intensity interval training (HIIT) induces similar or even superior adaptations compared to continuous endurance training. Indeed, just 6 HIIT sessions over 2 weeks significantly improves maximal oxygen uptake (VO2max), submaximal exercise fat oxidation, and endurance performance. Whether even faster adaptations can be achieved with HIIT is not known. Thus, we aimed to determine whether 2 sessions of HIIT per day, separated by 3 h, every other day for 5 days (double HIIT (HIIT-D), n = 15) could increase VO2max, submaximal exercise fat oxidation, and endurance capacity as effectively as 6 sessions of HIIT over 2 weeks (single HIIT (HIIT-S), n = 13).MethodsEach training session consisted of 10 × 60 s of cycling at 100% of VO2max interspersed with 75 s of low-intensity cycling at 60 watt (W). Pre- and post-training assessments included VO2max, time to exhaustion at ∼80% of VO2max, and 60-min cycling trials at ∼67% of VO2max.ResultsSimilar increases (p < 0.05) in VO2max (HIIT-D: 7.7% vs. HIIT-S: 6.0%, p > 0.05) and endurance capacity (HIIT-D: 80.1% vs. HIIT-S: 79.2%, p > 0.05) were observed. Submaximal exercise carbohydrate oxidation was reduced in the 2 groups after exercise training (HIIT-D: 9.2%, p = 0.014 vs. HIIT-S: 18.8%, p = 0.012) while submaximal exercise fat oxidation was significantly increased in HIIT-D (15.5%, p = 0.048) but not in HIIT-S (9.3%, p = 0.290).ConclusionSix HIIT sessions over 5 days was as effective in increasing VO2max and endurance capacity and was more effective in improving submaximal exercise fat oxidation than 6 HIIT sessions over 2 weeks. 相似文献
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In this paper, a different internal fault modeling and an identification algorithm are presented. There has been an increasing concern about turn-to-turn faults in transformers because of the high costs of unexpected outages. It is not always possible to analyze the transformer behavior under such faults at rated conditions, since the tests are highly destructive. To develop transformer internal fault detection technique, a transformer model to simulate internal faults is required. This paper describes a novel technique and methodology for modeling and identifying transformer internal faults by using transmission line method (TLM) and fuzzy reasoning technique based on dynamic principal component analysis (PCA), respectively. The transformer has been modeled considering non-linearities as hysteresis and saturation. Transformer internal fault currents are successfully discriminated from the rated currents. The degree and priority of transformer internal faults are obtained by the proposed method. It is suited for implementation on computers because of no computation complexity. Hence, the proposed algorithm can be used effectively in real-time fault identification problems. 相似文献
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Damien C. Cormier Okan Bulut Kevin S. McGrew Jessica Frison 《Psychology in the schools》2016,53(8):787-803
Writing is a complex academic task—it involves numerous mental processes. Given the necessity for developing writing skills from elementary to secondary school, this study aimed to investigate the role of broad cognitive abilities derived from the Cattell–Horn–Carroll (CHC) theory of intelligence in predicting skills associated with writing achievement. The normative sample from the fourth edition of the Woodcock–Johnson Tests of Cognitive Abilities and the Woodcock–Johnson Tests Academic Achievement were used to examine the relationships between broad CHC abilities and academic achievement in writing. The findings of this study suggest that the broad CHC abilities Comprehension‐Knowledge, Processing Speed, and Fluid Reasoning are especially important predictors of basic writing skills and written expression during the school‐age years. In general, changes in the strength of the association between cognitive abilities and academic achievement in writing are observed over time, as the cognitive demands involved in the writing increase in complexity in later grades. 相似文献
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Zühal Okan Rana Y&#x;ld&#x;r&#x;m 《International Journal of Educational Development》2004,24(6):603-616
This paper is a report of a study on early school experience as part of a Teacher Education programme in Turkey. The programme requires second-year students to act as students only, observing their mentors in classrooms rather than practising teaching so that they can gain a wider view of the teaching profession. The study analyses the experiences of these students, therefore, particularly focusing on the extent to which this scheme is conducive to making students learn from their experience. The findings from the qualitative data suggest that careful attention must be paid to major factors shaping this process, such as the school atmosphere as a whole, the nature of tasks for observation, the quality of interaction between student-mentor, and, more importantly, the opportunities for students to develop an inquiry-based approach to teaching. 相似文献
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Research in Science Education - The purpose of this study was to examine eighth-grade students’ science performance in terms of two test design components, item format, and cognitive domain.... 相似文献