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In this paper we describe the ways participants of the Scratch online community, primarily young people, engage in remixing of each others' shared animations, games, and interactive projects. In particular, we try to answer the following questions: How do users respond to remixing in a social media ...

Let ▫$S$▫ be a set of four points chosen independently, uniformly at random from a square. Join every pair of points of ▫$S$▫ with a straight line segment. Color these edges red if they have positive slope and blue, otherwise. We show that the probability that ▫$S$▫ defines a pair of crossing edges ...

A rubber engine mount (EM) is a mechanical coupling between the engine and the chassis, and its main function is to diminish, in the chassis, the amplitude of vibrations caused for the engine operation. Such vibrations cause discomfort for vehicle passengers and reduce the EM lifetime. To increase t ...