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Boblest, Sebastian; Muller, Thomas; Wunner, Gunter – European Journal of Physics, 2011
The "twin paradox" of special relativity offers the possibility of making interstellar flights within a lifetime. For very long journeys with velocities close to the speed of light, however, we have to take into account the expansion of the universe. Inspired by the work of Rindler on hyperbolic motion in curved spacetime, we study the worldline…
Descriptors: Graduate Students, Siblings, Physics, Motion
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Lochmiller, Chad R.; Sugimoto, Thomas J.; Muller, Patricia A.; Mosier, Gina G.; Williamson, Steven E. – Regional Educational Laboratory Appalachia, 2016
Kentucky is using dual enrollment as one strategy to improve access to postsecondary education for its high school students, particularly after passage of Kentucky Senate Bill 1 in 2009, which focused on improving college and career readiness. The Regional Educational Laboratory (REL) Appalachia undertook a descriptive study of participation in…
Descriptors: Dual Enrollment, College School Cooperation, High School Students, Student Participation
Lauder, Hugh, Ed.; Young, Michael, Ed.; Daniels, Harry, Ed.; Balarin, Maria, Ed.; Lowe, John, Ed. – Routledge, Taylor & Francis Group, 2012
The promise, embraced by governments around the world, is that the knowledge economy will provide knowledge workers with a degree of autonomy and permission to think which enables them to be creative and to attract high incomes. What credence should we give to this promise? The current economic crisis is provoking a reappraisal of both economic…
Descriptors: Foreign Countries, Social Justice, Constructivism (Learning), Social Class
Witte, Arnd, Ed.; Harden, Theo, Ed. – Peter Lang Oxford, 2011
This book explores the idea of "intercultural competence", which, despite its current popularity across various discourses, has remained a vague and oscillating concept. Interculture lacks a universal definition and "competence" is not only a cognitive construct but also includes psychological traits such as attitudes,…
Descriptors: Cultural Pluralism, Interpersonal Competence, Second Language Learning, Research
D'Mello, S. K., Ed.; Calvo, R. A., Ed.; Olney, A., Ed. – International Educational Data Mining Society, 2013
Since its inception in 2008, the Educational Data Mining (EDM) conference series has featured some of the most innovative and fascinating basic and applied research centered on data mining, education, and learning technologies. This tradition of exemplary interdisciplinary research has been kept alive in 2013 as evident through an imaginative,…
Descriptors: Data Analysis, Educational Research, Educational Technology, Interdisciplinary Approach