We have studied the reactions e" +p^ e~ +K + +A and e~ +p-» e" +K + +i: 0 by detecting the final electron and kaon in coincidence. Data are presented in the region of virtual-photon mass squared from -0.18 to -1.2 GeV 2 , virtual-photoproduction center-of-mass energy from 1.85 to 2.60 GeV, and virtual-photoproduction center-of-mass angle from 0 to 28°. The S°/A ratio tends to be smaller than in photoproduction, and the data suggest large scalar production of the K + A final state.We have used the two-arm spectrometer system at the Cambridge Electron Accelerator 1 to study the reactionse-+p-+e-+K + +X° (2) by observing the scattered electron and the kaon in coincidence.To lowest order in the electrodynamic interaction reactions, (1) and (2) can be treated as photoproduction by a virtual photon whose mass, energy, direction, and polarization density matrix are tagged by the detected electron. The virtualphotoproduction cross sections presented in this paper were obtained using the conventions of Ref. 1. The results are expressed in terms of k 2 9 the virtual-photon mass squared; W 9 the virtual-photoproduction center-of-mass energy; 0, the polar angle between the virtual photon and the kaon in the virtual-photoproduction center-ofmass frame;
Based on a client project assigned to students in two undergraduate business classes, this article argues that social media learning is best done in a context that mixes social media with more traditional kinds of media. Ideally, this approach will involve teams of students who are working on different aspects of a larger client project. This integrated setup has several benefits: It enhances the students' understanding of social media within a real context, it complements more traditional communication methods, and it reveals the communicative aspects of key business functions.
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