This book raises the question of whether or not educators can promote intrinsic motivation among college students when they seem overwhelmingly focused on grades. Indeed, can there be life beyond grades? The answer is 'Yes'. A love of learning can coexist, even thrive, in the face of competing pressures from grades. Drawing on recent, ground-breaking classroom research, the authors articulate a new understanding of the causes of the stalemate between intrinsic and external motivation, so that a reconciliation between them can be achieved. Then the authors apply a powerful set of motivational and pedagogical principles to lay out a step-by-step blueprint for designing and teaching college courses that promote intrinsic motivation as a primary educational goal in its own right, above and beyond knowledge and skill acquisition. This practical blueprint draws on authentic case study examples from a variety of subject-matter disciplines.
Propagation of Waves focuses on the wave propagation around the earth, which is influenced by its curvature, surface irregularities, and by passage through atmospheric layers that may be refracting, absorbing, or ionized. This book begins by outlining the behavior of waves in the various media and at their interfaces, which simplifies the basic phenomena, such as absorption, refraction, reflection, and interference. Applications to the case of the terrestrial sphere are also discussed as a natural generalization. Following the deliberation on the diffraction of the "ground wave around the earth, this text summarizes the role and properties of the troposphere and ionosphere from a general physical point of view. Examples and maps are provided to illustrate the use of the various methods in the determination of ranges or favorable wavelengths. A brief discussion on problems encountered in the field of space communications is also included. This publication is a good source for students and individuals researching on wave propagation, specifically on the principles of radiation and propagation in a homogeneous, isotropy, and lossless dielectric.
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