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2010

Theses/Dissertations

Physical Sciences and Mathematics

Carroll College

Articles 1 - 2 of 2

Full-Text Articles in Education

Rural Water Disinfection In The Developing World: Designing A General Chemistry Lab Experience, Mickey Doherty Apr 2010

Rural Water Disinfection In The Developing World: Designing A General Chemistry Lab Experience, Mickey Doherty

Chemistry and Physics Undergraduate Theses

A simple electrolysis apparatus was set up with a 10 wt% NaCl solution using a stainless steel cathode and a graphite anode to produce a hypochlorite ion solution. The hypochlorite ion solution was quantified to around 600 ppm by spectrophotometry analysis at 515 nm using N,N-diethyl-p-phenylenediamine (DPD). The efficacy of the hypochlorite solution was determined by contaminating a 1 ppm solution of the hypochlorite solution with the sulfide-producing bacterium, Salmonella typhimurium. At this level, the bacteria were not viable. The procedure used to generate the hypochlorite solution and determine its disinfection effectiveness was adapted to a lab experience for ...


Statistical Retention Analysis Of Enrollment Data At Carroll College, Dustin Dickerson Apr 2010

Statistical Retention Analysis Of Enrollment Data At Carroll College, Dustin Dickerson

Mathematics, Engineering and Computer Science Undergraduate Theses

Organizations around the world hire operations scientists and data analysts to ensure their resources are being used to their maximum potential. Colleges and universities are no exceptions. Admissions offices, in particular, store incredible amounts of data about students who attend their institution. This data includes, but is not limited to, high school GPA, SAT and ACT scores, sex, ethnicity, age, household income, and intended major. What schools hope to learn from this data is two-fold: 1. What kind of student is the school most likely/unlikely to retain until graduation? 2. How effective are new retention programs? Knowing what student ...