Pathways to Success in Anatomy and Physiology at the Community College: The Role of Prerequisite Courses

Gatekeeper courses such as Anatomy and Physiology are often referenced in discussions regarding the national shortage of persons in allied health professions. In an attempt to bolster access to STEM professions, some community colleges are mandating prerequisite courses such as Natural Sciences and/or General Biology for STEM gatekeeping courses. In this study, we examined which of these prerequisite courses helped students to pass Anatomy and Physiology and whether the courses are an additional barrier to STEM field completion. This was the first study to evaluate whether a prerequisite course was predictive of success in Anatomy and Physiology, and it contributes to the body of literature regarding student success in the sciences

Autonomous clustering using rough set theory

This paper proposes a clustering technique that minimises the need for subjective human intervention and is based on elements of rough set theory. The proposed algorithm is unified in its approach to clustering and makes use of both local and global data properties to obtain clustering solutions. It handles single-type and mixed attribute data sets with ease and results from three data sets of single and mixed attribute types are used to illustrate the technique and establish its efficiency

Exploring Broadband GRB Behavior During gamma-ray Emission

The robotic ROTSE-III telescope network detected prompt optical emission contemporaneous with the gamma-ray emission of Swift events GRB051109A and GRB051111. Both datasets have continuous coverage at high signal-to-noise levels from the prompt phase onwards, thus the early observations are readily compared to the Swift XRT and BAT high energy detections. In both cases, the optical afterglow is established, declining steadily during the prompt emission. For GRB051111, there is evidence of an excess optical component during the prompt emission. The component is consistent with the flux spectrally extrapolated from the gamma-rays, using the gamma-ray spectral index. A compilation of spectral information from previous prompt detections shows that such a component is unusual. The existence of two prompt optical components - one connected to the high-energy emission, the other to separate afterglow flux, as indicated in GRB051111 - is not compatible with a simple ``external-external'' shock model for the GRB and its afterglow.Comment: ApJ accepted. 32 pages (in preprint form), 5 tables, 5 figure