Digital Commons Network^™

The Other Side Of Distance Education: Learner Interaction At Remote Sites, Beth Walden

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation describes the observations of the interaction of adult learners at remote distance education sites. The researcher audited 11 complete courses at four receive sites during two academic terms. The observations were done in the Com-Net, audio-graphic system provided by Utah State University. The courses were provided for university credit to adults around the state.

The research was designed to answer three research questions:

1. What interactions do learners at a distance exhibit in their educational setting?

2. What observable events appear to prompt the beginning and ending of the learners' interactions?

3. What observable outcomes result from the …

Interaction Of The Human Serine Protease Inhibitor Alpha-1-Antitrypsin With Cryptosporidium Parvum, John Russell Forney

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The human serine protease inhibitor (serpin) alpha-1-antitrypsin (AAT) was studied for potential interaction with components of the protozoan parasite Cryptosporidium parvum. A homogenate prepared from C. parvum oocysts was incubated with purified human AAT, and complexes formed between the serpin and components of the homogenate were detected using an enzyme-linked immunosorbent assay (ELISA). Serpin:parasite infections were effectively blocked by preincubating AAT with a cognate target enzyme, porcine pancreatic elastase, prior to performing the ELISA on the homogenate. Incubation of a mixture of C. parvum oocysts and sporozoites with AAT demonstrated preferential fluorescence labeling of the sporozoite surface membrane by indirect …