Thesis (M.A.)--BYU Dept. of Music.

No description available.

This thesis focused on using microcosms to better understand the aerobic cometabolic processes of TCE and cis-DCE transformation that occurred during a Cometabolic Air Sparging (CAS) demonstration at McClellan Air Force Base. The microcosms were created with groundwater and aquifer materials from the demonstration site. Concentrations of compounds in the microcosms were maintained to mimic conditions where the demonstration was performed. Propane was used as the primary substrate to stimulate indigenous propane-utilizers present in the McClellan subsurface. The microcosms were used to test the potential of the propane-utilizers to transform the CAHs of interest, and determine their nutrient requirements while transforming these compounds. Vadose zone microcosms were also created and used to compare the cometabolic processes and nutrient requirements of the propane-utilizers under these different conditions. After the addition of propane a ten-day lag period was observed before the propane-utilizers were stimulated in all the microcosms. The presence of CAHs and excess nitrogen did not have any effect on the lag period required to stimulate these microorganisms. Microcosms that received nitrogen amendments maintained effective transformation of TCE and c-DCE with successive additions. The rate of c-DCE transformation was observed to be faster than TCE transformation. Complete removal of the CAHs occurred in these microcosms. No other nutrients, such as phosphorous, were observed to cause any nutrient limitations. However, the microcosms that only had limited amounts of nitrogen present were only able to maintain transformation ability for a short time. Propane utilization rates gradually decreased with each addition, and CAH transformation eventually ceased. This was also observed during the CAS field demonstration after successive additions of propane. Ammonia gas was added to the sparge gas in the field and propane utilization and CAH transformation resumed. Ammonia gas was added to the nitrogen-limited microcosms, and like the field demonstration, propane utilization and CAH transformation resumed. Nitrogen was found to be a critical nutrient for effective cometabolism of CAHs. Nitrogen supplied either as ammonia or nitrate was required for the propane-utilizers to maintain effective rates of propane utilization and CAH transformation ability. By comparing different sets of microcosms under different conditions, estimates were made to the amount of nitrogen required by the propane-utilizers with and without CAHs transformed. The transformation of CAHs significantly increased the propane-utilizers requirements for nitrogen. A 2.0-3.8-fold increase in was observed for nitrogen consumption when CAHs were transformed, possibly resulting from toxic effects caused by the transformations. The sparge gas used at the CAS demonstration also contained ethylene at a low concentration (1% vol/vol). The microcosm experiments with this concentration of ethylene were found not to have any negative effects on CAH transformation. The propane-utilizers were also able to maintain propane utilization and CAH transformation at high CAH concentrations. The vadose zone microcosms showed that propane utilization in the vadose zone was an order of magnitude lower than what was observed in the saturated microcosms. Also bioavailable nitrogen was required to maintain propane utilization rates. However, higher CAH concentrations were found to inhibit the stimulation of the propane-utilizers under these conditions. / Graduation date: 2002

Graduation date: 1997

Thesis (M.A.)--University of Montana, 2008. / Title from title screen. Description based on contents viewed Aug. 7, 2008. Includes bibliographical references (p. 91-94).

In order to understand the significance of music in our culture, we must learn of music history. This history includes not only a few men who have been revered through the centuries, but many who, during their lifetime and in their locality or country, exerted influence to some degree.Such a man was John Jasper McClellan. He studied under some of the world's great teachers and received their praise; founded the University of Michigan Symphony Orchestra; directed the Salt Lake Opera Company, the Salt Lake Choral Society, and the Salt Lake Symphony Orchestra; founded the Utah Conservatory of Music; taught many of the musicians who are prominent today; was organist at the Salt Lake Tabernacle for twenty-five years; originated the regular free organ recitals in this country; and was considered one of the world's greatest organists.The author has attempted to collect all available information concerning Mr. McClellan, to select those facts which give an insight into his personality as a musician, his contribution as a musician, and his influence as a musician, and to present these in an unbiased manner. Data was obtained from books, magazines, newspapers, unpublished writings, and interviews with persons acquainted with Mr. McClellan. This information is arranged chronologically, followed by an appendix containing information that did not seem to fit properly into the body of this work and yet seemed necessary to arrive at a true appreciation of this man.

This study investigates the development of large unit command and control in the United States Army prior to the American Civil War. It examines the results of this development in one early campaign of the war. The paper's theme is that the excessive casualties suffered during the early stages of the war were not only a result of the improvements in weapons technology, the size of the armies or the personalities of the individual commanders. Another, and potentially more serious cause was the inability of the Union commanders to command, control, and maneuver these units to achieve campaign objectives.The paper begins by describing how war is organized into three levels: strategy, operations, and tactics; and defining the concepts related to command and control. The influences on the development of the Civil War leadership are next examined. These include: Napoleonic Warfare, the teachings of Jomini, Mahan, and Halleck; the the formal and informal educational experiences of the officers. Next command and control doctrine within the Union Army is examined.The case study used for examining operational command and control during the early period of the Civil War is the Maryland Campaign of 1862 which culminated at the Battle of Antietam in September of that year. Throughout the thesis, the education and performance of the Army of the Potomac's commander, George B. McClellan is examined.The conclusion of the paper is that the United States Army was poorly prepared for the conduct of large unit operations. This poor preparation, and performance, could not be blamed on any single individual, including McClellan. It was the result of complex educational, experiential, and organizational factors which shaped the pre-war Army.Finally, this paper concludes that General McClellan's inability to decisively maneuver the forces at his disposal was a significant factor in the outcome of the engagement at Sharpsburg, Maryland on 17 September, 1862.

No description available.