Entrance to university does not automatically lead to high academic engagement and success, and there may be individual differences in student engagement. In the present study, university students' (N=668) academic engagement and disengagement profiles, and the differences between them in terms of academic achievement, were investigated. Students from introductory courses were classified by Latent Profile Analysis (LPA) into homogenous groups having similar patterns according to the following variables: study engagement, study-related exhaustion, lack of interest, lack of self-regulation, and uncertainty of one's career choice. Four groups of students were identified: engaged, disengaged, undecided, and alienated. Engaged students received the highest grades, with disengaged and undecided students performing most poorly. In addition, the profiles were related to the behavioral indicators of engagement (i.e., ECTS credits). Even after two years of studying, engaged students were performing better than disengaged students. The study's implications for both research and practice are discussed.
Abstract-A novel image solution for the canonical electrostatic problem of a point charge in an anisotropic half-space bounded by an anisotropic surface is presented. The image source is obtained in operator form by using Fourier-transformed Maxwell equations and transmission line theory. After applying methods from Heaviside operator calculus, the image operator can be interpreted as a combination of a point charge and a line-charge-bounded sector of planar charge density. The new theory is shown to coincide with the previously known image solutions of less general anisotropic media. In addition to being applicable to any physically feasible anisotropic medium of electrostatics, the method can be used for steady-current conductivity problems via a duality transformation.
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