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61.
Edwin P. Prettyman 《The Teacher Educator》2013,48(3):15-16
Government teachers who have a sincere desire to make their courses significant and interesting will find Dr. Struve's criticisms justified and his suggestions useful. 相似文献
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Russell A. Chapman Stanley B. Baker Sylvia C. Nassar‐McMillan Edwin R. Gerler Jr. 《Counselor Education & Supervision》2011,50(5):298-313
The authors used an intensive single‐subject quantitative design to examine cybersupervision of counseling practicum students in a university setting. Five female supervisees volunteered to receive their required weekly supervision online during a 14‐week, semester‐long counseling practicum. Following a face‐to‐face orientation meeting, all remaining interactions among the supervisees and with the supervisor occurred electronically. Data were collected about the utility of the synchronous and asynchronous modalities, changes in supervisee competence and confidence during the practicum, and supervisee attitudes about the cybersupervision approach. The findings offered evidence that the web‐based modality could be used in similar settings. 相似文献
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Constrained minimization problems considered in this paper arise in the design of beamformers for radar, sonar, and wireless communications, and in the design of precoders and equalizers for digital communications. The problem is to minimize a quadratic form under a set of linear or quadratic constraints. We present solutions to these problems and establish a connection between them. A majorization result for matrix trace and Poincare's separation theorem play key roles in establishing the connection. We show that our solutions can be formulated as generalized sidelobe cancellers (GSCs), which tie our constrained minimizations to linear minimum mean-squared error (LMMSE) estimations. We then express our solutions in terms of oblique projection matrices and establish the geometry of our constrained minimizations. 相似文献