Background: While biomarkers for chronic fatigue syndrome (CFS) are beginning to emerge they typically require a highly specialized clinical laboratory. We hypothesized that subsets of commonly measured laboratory markers used in combination could support the diagnosis of post-infectious CFS (PI-CFS) in adolescents following infectious mononucleosis (IM) and help determine who might develop persistence of symptoms. Methods: Routine clinical laboratory markers were collected prospectively in 301 mono-spot positive adolescents, 4 % of whom developed CFS (n = 13). At 6, 12, and 24 months post-diagnosis with IM, 59 standard tests were performed including metabolic profiling, liver enzyme panel, hormone profiles, complete blood count (CBC), differential white blood count (WBC), salivary cortisol, and urinalysis. Classification models separating PI-CFS from controls were constructed at each time point using stepwise subset selection. Results: Lower ACTH levels at 6 months post-IM diagnosis were highly predictive of CFS (AUC p = 0.02). ACTH levels in CFS overlapped with healthy controls at 12 months, but again showed a trend towards a deficiency at 24 months. Conversely, estradiol levels depart significantly from normal at 12 months only to recover at 24 months (AUC p = 0.02). Finally, relative neutrophil count showed a significant departure from normal at 24 months in CFS (AUC p = 0.01). Expression of these markers evolved differently over time between groups.
Students can sometimes find the classroom to be an uncomfortable environment; hence, it can be difficult to persuade them to voice their thinking in front of their peers. Students' fear of accidentally recalling incorrect answers in a classroom setting may set a domino effect of instant ridicule from their classmates, which can consequentially inhibit many of them from participating in future classroom discourse. To reduce fears, educators should foster an environment of support that encourages students to think visibly and more critically. The purpose of this article is to explore the literature, which suggests an environment that promotes creative learning and visible thinking inherently develops students' critical thinking skills resulting in them becoming better problem solvers.
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