Tiffany Coleman

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The neural crest is a population of mesenchymal cells that after migrating from the neural tube gives rise to structure and cell types: the jaw, part of the peripheral ganglia, and melanocytes. Although much is known about neural crest development in jawed vertebrates, a clear picture of trunk neural crest development for elasmobranchs is yet to be(More)
This qualitative inquiry described the scaffolding provided by the instructor and class participants in an online graduate literacy course. Participants included the instructor and 16 students. Data were 588 bulletin board messages which were analyzed using the constant-comparative method. Analysis revealed five areas in which scaffolding occurred (a)(More)
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