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A general model for motivational design of instruction is described and reviewed in terms of its application to E-learning contexts. Following a description of what is meant by E-learning environments and an overview of the four category model and design process known as the ARCS model, a variety of studies are summarized. The ARCS model is based on a(More)
We suggest that the existence of many of the rock-carved trails at Racetrack Playa in Death Valley National Park is predominantly due to the effect of arbitrarily weak winds on rocks that are floated off the soft bed by small rafts of ice, as also occurs in arctic tidal beaches to form boulder barricades. These ice cakes need not have a particularly large(More)
ChanMin Kim is a doctoral candidate in Instructional Systems at Florida State University and has conducted research on the integration of motivational and volitional strategies to improve learner motivation and achievement. She is currently expanding her research to include change management theory with motivation and volition to develop a process for(More)
This study tested strategies incorporating change management, motivational, and volitional characteristics in order to facilitate positive attitudes toward engineering. In an introductory engineering course, the strategies were distributed via email to two groups: one received the strategies with an animated pedagogical agent (Agent-MVM) and the other(More)
Heparan sulfate glycosaminoglycan, isolated from the cell surface of nonadhering murine myeloma cells (P3X63-Ag8653), does not bind to plasma fibronectin, but binds partially to collagen type I, as assayed by affinity chromatography with proteins immobilized on cyanogen bromide-activated Sepharose 4B. Identical results were obtained when myeloma heparan(More)
Introduction: We report preliminary data on the concentrations of Si, Fe, H, K, and Th on the Martian surface. K and Th are also discussed in the context of crustal evolution and the bulk composition of Mars in a companion abstract [1]. The data reveal that the varies considerably in composition. We present these variations and use the data to assess the(More)
This Paper deal with the hardware and software interface for the Luminescence measurements Luminescence is one of the oldest know phenomenon, but its systematic study started only between eighteenth and nineteenth century. Luminescence is emission of light by a substance not resulting from heat; it is thus a form of cold body radiation it can be caused(More)