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62.
Curtis Brewer 《Peabody Journal of Education》2013,88(4):450-463
William Boyd's contributions to the education field's understanding of the political nature of school leadership are formidable. In this article, I describe the growth and development, over a roughly 30-year time span, of his key insight that successful school leaders should have the capabilities of a political strategist and that the actualization of this capacity is related to school leaders’ political and policy context. The perennial question of “who governs education” was central to Boyd's work and his various answers are important touchstones for today's educational leaders. 相似文献
63.
An educational experience designed to increase knowledge of the political process, provide peer interaction, and promote civic involvement did appear to enhance internal locus of control in a selected sample of older adults. No significant changes in anomia or life satisfaction occurred. Implications of the findings for educational programming for older adults are discussed. It is suggested that the SRS model used in the study should be tested further for exploring the impact of educational programs upon internal‐external control. 相似文献
64.
S.S. Mehta C. Ton M. Rysz Z. Kan E.A. Doucette J.W. Curtis 《Journal of The Franklin Institute》2019,356(10):5001-5026
A large class of visual servo controllers relies on an a priori obtained reference image, captured at the desired position and orientation (i.e., pose) of a camera, to yield control signals to regulate the camera from its current pose to a desired pose. In many applications, accessibility and economics of the operation may prohibit acquisition of such a reference image. This paper introduces a new visual servo control paradigm that enables control of the camera in the absence of reference image using a set of terminal constraints. Specifically, the desired pose is encoded using the angle of obliquity of the optical axis with respect to the object plane and its direction of arrival at the plane. A constrained convex optimization problem is formulated over a conic section defined by the terminal constraints to yield an error system for the control problem. Subsequently, this work introduces continuous terminal sliding mode visual servo controllers to regulate the camera to the desired pose. Lyapunov-based stability analysis guarantees that the origin is a finite-time-stable equilibrium of the system. Numerical simulation results are provided to verify the performance of the proposed visual servo controller. 相似文献
65.
A multi-ethnic sample of 248, ages 13–26, was used to examine the effects of age, gender, and ethnic group membership on ethnic identity and ego identity scores. Subjects were recruited from college and public schools in a large northeastern metropolitan area. The multigroup ethnic identity measure (MEIM) was used to assess ethnic identity and ego identity status was measured by the extended objective measure of ego identity status (EOMEIS). An age by ethnic group design was employed. Consistent findings of significant ethnic group differences in levels of ethnic identity were observed. Age and ethnic group were found to contribute differently to ethnic identity and ego identity status. The relationship between ethnic identity and ego identity status was found to be pronounced among subjects of color but not as dramatic as hypothesized. 相似文献
66.
67.
W.Curtis Taylor 《Journal of The Franklin Institute》1885,120(4):299-300
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69.
A surge in the proliferation of educational technology tools and models means that postsecondary learners and instructional designers have more options than ever before. Selecting the most appropriate tool for a given learner-centered instructional situation is challenging. The construct of feedback is central to an effective learner-centered instructional design. The present summary of the research on feedback in learner-centered instructional design models provides a rationale for the value of defining the dimensions of a high-quality learner feedback experience. Six dimensions of feedback are proposed; namely, timeliness, frequency, distribution, source, individualization, and content. Key questions posed include whether an analysis of the learner’s feedback experience is a better proxy for measuring the quality in postsecondary online learning than grades, satisfaction, or regular and substantive contact. 相似文献
70.
The study determined the influence of students' values and educational attitudes on their evaluation of faculty. Sixty-five graduate students completed an evaluation form, a value survey, and an attitude scale at the end of an adult learning theory course. Multiple regression and path analysis showed that (a) educational attitudes and selected values accounted for 27% of the variance in student evaluation of faculty, (b) educational attitudes were responsible for 8% of the variance in student evaluation of faculty, and (c) values per se were not significantly related to student evaluation of faculty. A path model suggested that values influenced student evaluation of faculty through educational attitudes. The findings suggested that students' values and attitudes play a major role in their evaluation of faculty and should be recognized by teachers when interpreting the results of such ratings. 相似文献