首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   13篇
  免费   0篇
教育   9篇
科学研究   2篇
体育   1篇
信息传播   1篇
  2022年   1篇
  2021年   1篇
  2020年   1篇
  2019年   1篇
  2018年   5篇
  2013年   1篇
  2012年   1篇
  2010年   1篇
  2002年   1篇
排序方式: 共有13条查询结果,搜索用时 46 毫秒
1.
Educational technology research and development - The transition from paper-based tests to corresponding computer-administered tests allows for the incorporation of improved interfaces that support...  相似文献   
2.
This article presents the first results of an investigation in a scholastic context aimed a determining the conditions that favour the acquisition of knowledge in biology within interactions in groups of 4 pupils. There were three work sessions in small groups, and some sessions in class groups. The pupils’ conceptions were assessed at the beginning and the end of learning as well as at the beginning of the first and second group sessions. The pupils had to compare their ideas and draw one or several pictures with a caption or some sentences to explain if necessary. Interactional analysis showed that the co-development-type interactive dynamics (according to Gilly) contribute to constructing the conceptual field studied owing to the questions the pupils ask one another. Conflicting comparison-type dynamics are benficial providing that each pupil does not put forward only arguments that contribute to confirminghis own opinions. Moreover, it seems that the quality of the interactions depends on the tasks the pupils are requested to accomplish.  相似文献   
3.
Health service psychology has been slow to create a leadership mentoring model. A survey of former chairs of the American Psychological Association of Graduate Students and American Psychological Association’s Committee on Early Career Psychologists revealed that: (a) early career leaders had at least one mentor who explicitly supported their leadership development; (b) these mentoring relationships were both formal and informal; (c) peer mentoring was invaluable for fostering success; and (d) mentorship relationships were critical in preparing respondents for their roles. A preliminary framework and associated guidance for leadership mentoring in psychology is proposed.  相似文献   
4.
Intelligent control systems are able to work well in uncertain nonlinear systems, mainly for: changes in the operating point, presence of environmental noise and disturbances, uncertainty in sensor measurements, miscalibration, uncertain model plant, and others. For instance, fuzzy controllers have been widely studied and applied. Recently, artificial organic controllers (AOC) have been proposed as an ensemble of fuzzy logic and artificial hydrocarbon networks. However, a weakness in AOC is the lack of training methods for tuning parameters for desired output responses in control. In this regard, this paper aims to introduce an evolutionary optimization method, i.e. particle swarm optimization, for tuning artificial organic controllers. Three objectives are proposed for automatic tuning of AOC: overall error, steady-state error and settling time of output response. The proposed methodology is implemented in the well-known cart-pole system. Also, the proposed method is applied on a one-leg unstable mechanism as case study. Results validate that automatic tuning of AOC over simulation systems can achieve suitable output responses with minimal overall error, steady-state error and settling time.  相似文献   
5.
Football might not be as popular as basketball in the Philippines, but it has a loyal following. In 2012, broadcaster Arnold Clavio claimed that members of the Men’s National Team, the Azkals, were not true Filipinos. Most of the Azkals are children of Filipinos and foreign nationals, and spent their childhood abroad. Clavio’s statement prompted an online writing storm, which the researcher analyzed to examine how Filipinos constructed their identity. Analysis showed that Azkals supporters constructed the Filipino as a ‘citizen of the world’, with a dynamic identity defined by individual emotions. Clavio supporters tended to construct the Filipino as a ‘citizen of the country only’, with an identity fixed by location and acted out in culture. The debate centred on whether Filipino identity could be inherited but changed, or was fixed and immutable. These struggles raise interesting questions on national identity and unity, whether or not football is involved.  相似文献   
6.
Throughout Latin America, conditional cash transfer (CCT) programs play an important role in social policy. These programs aim to influence the accumulation of human capital, as well as reduce poverty. In terms of educational outcomes, a number of impact evaluation studies have shown that such programs have led to an increase in school enrollment, ensured regular school attendance and led to a reduction in child labor. Theoretically, such cash transfer programs may also be expected to exert a positive impact on students’ test scores, but related empirical evidence is scarce. Accordingly, this paper evaluates the impact of a cash transfer program, the Bono de Desarrollo Humano of Ecuador, on students’ cognitive achievements. The paper uses a regression discontinuity strategy to identify the impact of the program on second grade cognitive achievement. Regardless of the specification and sample used, we find no impact of the program on test scores, suggesting that attempts at building human capital, as measured by cognitive achievement, require additional and alternative interventions.  相似文献   
7.
European Journal of Psychology of Education - This study on mother–child interactions is in line with Sigel’s theoretical approach to distancing. The current study aimed at analyzing...  相似文献   
8.
Conventional Sliding Mode Controllers (SMCs) exhibit a robust performance against matched bounded uncertainties and disturbances by containing them under a fixed controller’s effort. Consequently, the controller is commonly found excessive, leading to chattering and straining the actuator. As a solution, the variable-gain SMCs adapt to the instantaneous system requirements, thus attenuating the aforesaid effects and keeping the SMC’s benefits. However, the reported adaptive laws underlying such behavior commonly require arbitrary design considerations and do not consider practical implementation. Unlikely, in this work, a hysteresis-based adaptability law to drive the sliding variable to a boundary layer around zero is proposed. The sliding boundary—hysteresis’ width—will consistently “bounce” over the sliding variable, trying to shrink against it while preserving the sliding mode. This behavior finds its steady-state once the sliding variable and the sliding boundary’s dynamics are synchronized, with no need of subjective or arbitrary adjustments. The close-loop tuning can be derived from the system’s parameters alone, and its steady-state performance can be quantitatively predicted. Furthermore, a method to adjust the sliding surface parameters according to the system’s desired behavior is provided, all in a closed, analytical way. Finally, the physical actuator limits are taken into account and never exceeded, and the discrete nature of the devices normally used for SMC implementation is incorporated throughout. Two examples are studied to portray the proposal’s advantages.  相似文献   
9.
LibQUAL+® is an instrument purported to measure three dimensions of library service quality: service affect, library as a place, and information control. After changes were made to the instrument in 2003, however, no confirmatory factor analyses have been published in peer-reviewed journals affirming the three-factor structure of LibQUAL+®. These deficiencies were addressed by testing the hypothesized three-factor structure and the stability of that structure over time. Specifically, data from three samples (n = 550; n = 3261; n = 2103) were collected over a five-year period and analyzed using a multi-group confirmatory factor analysis. Results suggest that the theoretical model fit the data across the three samples and demonstrates factorial invariance over time. Multicollinearity between affect of service and information control, however, indicate that service quality may be measured as two dimensions rather than three, providing a more parsimonious explanation of service quality.  相似文献   
10.
This study examines the effects of including interactive graphic organizers into a whole-class PowerPoint lesson as an instructional approach intended to improve student engagement and generative learning in schools. A software application was developed and integrated into PowerPoint that makes it possible for the instructor to fill in empty graphic organizers during PowerPoint projection mode. The participants were 152 fourth-grade students selected from three schools that were grouped in four classrooms. Each classroom was divided in two groups—graphic organizer and content-based. The graphic organizer group was taught using an 11-slide PowerPoint presentation on a social study topic that included two empty graphic organizers plus two additional slides explaining how to make a comparison. The content-based group was taught using the same presentation but without these additional slides plus a set of questions students had to answer as a class activity. The lessons were recorded and the verbal statements between instructor and students examined using the Flanders Interaction Analysis System. Results indicated significant differences in how instructors and students interacted in each group, including more questions asked by teachers (d?=?1.99) and more students participating in the classroom discussion in the graphic organizer group (d?=?1.76). Learning outcomes showed that the graphic organizer group outperformed the content-based group on a memory test (d?=?.45) and a comprehension test (d?=?.44). These results encourage the use of graphic organizers as an instructional approach, and are consistent with a generative theory of learning.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号