Marcelo A. Santana

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BACKGROUND The activation and effector phenotype of T cells depend on the strength of the interaction of the TcR with its cognate antigen and additional signals provided by cytokines and by co-receptors. Lymphocytes sense both the presence of an antigen and also clues from antigen-presenting cells, which dictate the requisite response. CD43 is one of the(More)
Online education often deals with the problem related to the high students' dropout rate during a course in many areas. There is huge amount of historical data about students in on-line courses. Hence, a relevant problem on this context is to examine those data, aiming at finding effective mechanisms to understand student profiles, identifying those(More)
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