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101.
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This paper studies the topological as well as the non-topological solitons due to the nonlinear Klein-Gordon equations, in presence of perturbation terms. There are five forms of nonlinearity that will be considered. The He's semi-inverse variational principle will be used to carry out the integration. 相似文献
103.
Roger Kaufman Ryan Watkins Melvin Stith Don Triner 《Performance Improvement Quarterly》1998,11(3):32-44
Where are the world's organizations headed? What do they see as their primary destination and contribution? What do they commit to deliver and to whom? How rigorous are they in defining their destinations? What label do they use to describe statements of their intended future? To find the answers to these and other questions, we examined 26 of the leading organizations internationally as well as 60 leading organizations in the United States. Based on this sample of world organizations, we found indications that many organizations see some aspect of societal good as basic to their future, while many others regard their own organization's well-being as what is most important. We find no clear favorite for what organizations label their statements of purpose: most use “mission” while some use “vision,” and some use “values” or “philosophy.” Few of the organizations in our sample state their intended destination in measurable performance terms. From these data, we discuss the implications in terms of an increasing emphasis in the literature on organizations having to deliver outputs that contribute to external clients and society. We also note that purpose statements must be accompanied by appropriate actions to achieve those intentions. In addition, we discuss how this move toward socially-responsive organizations is impacting the role of the performance technologist. 相似文献
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那是一个充满忧伤的清晨。准备的各种食物的香味通常将标志着某个欢庆的节日或者是亲属的聚会,那时才赶着做这些东西,但这天清晨完全是另一回事。我从床上爬起来,尽最大努力只为面对这一天时,全身强烈地感到一阵未曾有过的寒冷。那是我宁愿很快忘却的一天,但不幸的是,我无法忘却。 相似文献
107.
Many pre-service teachers enter teacher education with problematic or unexamined assumptions about learners and teaching. This article reports on an authentic learning opportunity offered to 22 pre-service teachers in their first year at university, which attempts to disrupt these perceptions about learning and pedagogy. Using a new application of Butin's conceptual framework we show that during the project these participants developed more complex notions of learners and ways of making meaning. We argue that these ‘real-world’ experiences, when offered before pre-service teachers begin practicum in schools, provide more ‘resources’ to problematise the practices and institutional discourses encountered in schools. 相似文献
108.
Using network analysis we investigated faculty hiring at 21 U. S. News top-ranked programs in higher education administration. Our research questions were as follows. Do top programs hire from each other? Are faculty from the “outside” finding positions at top programs? Mixed results hint at implications for the “health” of the hiring network. Closed systems in higher education may produce unintended consequences as graduate programs look to expand into new global markets. 相似文献
109.
Job satisfaction is an essential component of teacher motivation, performance, and retention. Teacher job satisfaction is primarily affected by workplace conditions. This paper analyzes data from over 37,000 public school teachers from the 2011–2012 Schools and Staffing Survey. Hierarchical ordinal logistic regression was utilized to analyze effects of school rule enforcement and teacher victimization on job satisfaction. Findings indicated that teachers who perceived higher enforcement of school rules had higher job satisfaction. In particular, consistent enforcement of rules by school administrators had a significantly greater effect on satisfaction than collegial enforcement of rules. Findings also indicated that teacher victimization has a significantly negative effect on job satisfaction. Consistent enforcement of school rules may reduce instances of student misbehavior and teacher victimization, helping reduce teacher stress and anxiety, leading to greater job satisfaction. Implications for policy and practice are explored, examining what administrators can do to protect teachers and improve satisfaction. 相似文献
110.
Ryan S. Sacko Kerry McIver Ali Brian David F. Stodden 《Journal of sports sciences》2018,36(21):2412-2418
This study examined the metabolic cost (METs) of performing object projection skills at three practice trial intervals (6, 12, and 30 seconds). Forty adults (female n = 20) aged 18–30 (M = 23.7 ± 2.9 years) completed three, nine-minute sessions of skill trials performed at 6, 12, and 30 second intervals. Participants performed kicking, throwing and striking trials in a blocked schedule with maximal effort. Average METs during each session were measured using a COSMED K4b2. A three (interval condition) X two (sex) ANOVA was conducted to examine differences in METs across interval conditions and by sex. Results indicated a main effect for interval condition (F(5,114) = 187.02, p < .001, η2 = 0.76) with decreased interval times yielding significantly higher METs [30 sec = 3.45, 12 sec = 5.68, 6 sec = 8.21]. A main effect for sex (F(5, 114) = 35.39, p < .001, η2 = 0.24) also was found with men demonstrating higher METs across all intervals. At a rate of only two trials/min, participants elicited moderate physical activity, with 12 and 6-second intervals exhibiting vigorous PA. Demonstrating MVPA during the performance of object projection skill performance has potential implications for PA interventions. 相似文献