Digital Commons Network^™

Changes In Cadmium And Nickle Adsorption Over Time In A Periodically Submerged Soil, Elly Kirsten Triegel

Doctoral Dissertations

The objective of this study was to measure the rate of change of adsorptive properties of soils and sediments after submergence. Soil samples were collected from a cove which is inundated periodically each year. Samples were collected prior to submergence and analyzed for pH, Eh, organic carbon content, readily available iron and manganese oxides, free iron and manganese oxides , surface area, and the amount of cadmium and nickel adsorbed at pH 4 and the pH of the soil.

The amounts of nickel and cadmium adsorption were then investigated separately, in a 0.1 M NaNO₃ solution at the two …

A Feminist Theory Of Poetics, Barbara Alice Templeton

Doctoral Dissertations

Many critics have argued that modern poetry is most comprehensively understood as an expansion rather than a rejection of the romantic tradition. Simply stated, their claim is that the romantic lyric, in which the mode of perceiving rather than the perception itself is the central subject of the poem, remains the dominant form in modern and post-modern poetry. In general, contemporary poetry also presents itself as an act of the mind encountering and evaluating the external world. As a poetic movement influenced by feminist thinking, contemporary women's poetry grounds itself in the romantic tradition while deviating from it in ways …

Effects Of Cooking Method, Fat Level, And Days On Feed On The Objective And Sensory Characteristics Of Restructured Steaks, Carol A. Costello

Doctoral Dissertations

Top rounds from steers fed grain 0, 28, 56, or 84 days were removed and flaked in a Urschel Comitrol containing a plate with 1.9-cm openings. Fat (beef plates approximately 55% fat) from animals fed grain was finely ground. Flaked meat and fat were mixed and formed into 227-g restructured steaks with 15%, 20%, or 25% fat. Steaks were cooked in a microwave oven on a preheated browning dish or broiled in a conventional oven to an internal temperature of 73^oC ± 2^oC or 73^oC, respectively.

Greater cooking losses were exhibited for steaks heated …

The Presence Of Don Quixote In Music, Susan Jane Flynn

Doctoral Dissertations

Many musical works have been based upon Don Quixote de la Mancha, by Miguel de Cervantes Saavedra. Since the publication of the novel in 1605 (Part I) and 1615 (Part II), composers of all eras have sought to translate the story of the knight-errant into the universal language of music. The genres and the musical interpretations have varied. But the interest in Cervantes' masterpiece as a topic of musical expression has endured through nearly four centuries.

After a brief introduction to the references to music in the novel itself, selected Quixote compositions from each century are discussed in this …

Dynamic Behavior Of Boiling Water Reactors, Jose March-Leuba

Doctoral Dissertations

A study of the basic processes involved in boiling water nuclear reactor dynamics is presented. The main emphasis of this research has been placed on the physical interpretation of these processes. It is shown that this type of reactors have two regimes of operation: linear, during normal operation, and nonlinear, if they become unstable due to the thermohydraulic feedback. Both of these regimes are studied using low-order physical models.

The main result obtained from the linear study is the pole-zero configuration of the reactivity-to-power transfer function. It is determined that three zeros and four poles are needed to properly represent …

The Occurrence And Cause Of Midsummer Zooplankton Declines: Cyanobacteria And The Implications For Freshwater Ecology, Nicholas K. Brown

Doctoral Dissertations

The current paradigm of lacustrine ecology is that zooplankton communities are structured by the nature am intensity of predation upon them. One corollary to this paradigm is that the observed phenomenon of midsummer zooplankton decline is caused by predation. A second is the hypothesis of "biomanipulation." One aspect of "biomanipulation" proposes that in certain circumstances the removal of predators of zooplankton might result in reduced algal biomass. The assumption of both these corollaries is that aquatic food webs are manipulable from the top. 'The data supporting predation-caused midsummer declines and biomanipulation are examined analytically and theoretically by considering biomass, foraging …

Yield And Selected Chemical And Morphological Responses Of Several Soybean Cultivars To Soil Ph, Nuri H. Al-Mohammadi

Doctoral Dissertations

Yield responses of soybeans to soil pH have been difficult to demonstrate on most soils in Tennessee. Yet, liming has consistently been recommended as a practice to maintain productive soils near neutral. A study was conducted with 21 soybean cultivars on a productive West Tennessee soil to evaluate several chemical and morphological characteristics of these cultivars and determine which of the characteristics had any impact on yield.

Twenty-one soybean cultivars belonging to three maturity groups (IV, V, and VI) were planted in three soil pH levels of 5.3, 5.9, and 6.8 in a split-plot arrangement of treatments in a randomized …

Callus Formation And Somatic Embryogenesis : From Leaf Cultures Of Orchardgrass (Dactylis Glomerata L.), Gary E. Hanning

Doctoral Dissertations

The purpose of this study was to demonstrate callus formation and plant regeneration from orchardgrass (Dactylis glomerata L.) leaf tissue cultured in vitro. Vegetative tillers were removed from greenhouse grown plants and the two or three innermost leaves were split longitudinally at the midrib. Beginning at the basal end, six sections 3 mm long were cut from each leaf half and plated on a Schenk and Hildebrandt (SH) medium with 30 μM 3,6-dichloro-o-anisic acid (dicamba).

Initially, leaves from 86 plants were cultured and 14 plants produced a callus which regenerated plants via organogenesis. There was a decline in the frequency …

Interference And Postemergence Control Of Annual Grasses In Burley And Dark Fire-Cured Tobaccos, Gary K. Palmer

Doctoral Dissertations

Interference studies with annual grasses were conducted in 1982 and 1983 in burley and dark fire-cured tobaccos (Nicotiana tabacum L.) at Greeneville and Springfield, Tennessee, respectively. Treatments consisted of annual grass-free periods of 2, 4, 6, 8, and 10 weeks from transplanting and 2, 4, 6, 8, and 10 weeks of interference followed by removal of all weeds and maintenance of weed-free conditions. A season long annual grass-free treatment and a season long annual grass-infested treatment served as controls. Annual grass-free periods were established and maintained by hand-hoeing. In 1982, the critical annual grass-free period and critical duration …

The Effects Of Pre- And Post-Transit Potassium Levels, Feedlot Receiving Diets, And Levamisole Injection On Stressed Bull And Steer Calves, Frank K. Brazle

Doctoral Dissertations

In a March 1983 trial, 125 bulls and 139 steer calves were used to compare bulls castrated at feedlot (FL) arrival (BULLS) with steers, to evaluate feeding supplemental potassium (K) at the order-buyer barn (OBB) for three days before shipment or at FL, to compare a 40% concentrate (CONG) receiving diet with a hay (HAY) diet, and to evaluate the effect of injection with levamisole (LEV) at OBB and FL arrival. Mortality was higher (P<.05) in BULLS (13.2%) than in steers (7.7%) and higher in CONG bulls than in HAY bulls.

Steers gained more (P<.10) (12.1 kg) from purchase to FL-28, had higher (P<.10) antibody titers for Bovine Viral Diarrhea (BVD) at OBB, and greater (P<.10) change in serum lymphocyte blastogenesis from OBB to FL-28 than BULLS. Calves fed a 1.5% K diet at OBB had less shrink during the 24-hour transit than those fed a 1.1% K diet. FL gains of calves fed a 1.1% K and a 1.7% K receiving diet were similar (P>.10).

Calf breed type affected mortality. Mortality of white-faced, feather-necked, red, medium-frame calves (WF) (18.3%) was higher (P<.10) than that of black, medium-frame calves (BL) (2.8%). WF calves required 30% more clinical treatments and had higher temperatures than did BL and large-frame calves. Injection of LEV at OBB or FL reduced mortality 6.6% and increased BVD and IBR antibody titers. Gains during the 28-day receiving period were similar for the GONG and HAY calves but the GONG calves gained more (P<.05) during the subsequent silage period. Mortality tended to be higher in CONC calves (12.3%) than in HAY calves (8.5%).

The Effects Of Augmented Attentional Focus On The Performance With Practice Of A Closed Perceptual-Motor Task For Individuals Who Differ In Task Mastery, John Allen Richards

Doctoral Dissertations

The purpose of this study was to investigate the effects of augmented attentional focus on the performance with practice, of a closed perceptual-motor task for individuals who differ in task mastery. Sixty-four male volunteers were assigned to either the beginning or advanced task mastery group (n = 32) based on bowling averages (≤ 130, ≥ 150 respectively). Each subject in the task mastery groups was randomly assigned to one of four augmented focus of attention conditions, i.e., focus on: (a) environmental results of the movement that was performed (KR); (b) the movement that was performed (KP); (c) self via presence …

Effects Of Carnitine On Ethanol-Induced Hepatic Steatosis, Tae Hyong Rhew

Doctoral Dissertations

The lipotropic and hypolipidemic effects of carnitine and its precursors, namely lysine (Lys) and methionine (Met), was examined in male Sprague-Dawley rats fed ethanol as 36% of the total calories for a duration of 56 days (Experiment I). Ethanol produced significant hepatic steatosis and hypertriglyceridemia as evidenced from elevated concentrations of total lipids, triglycerides, cholesterols, and phospholipids. Supplementation of the ethanol diet with 1.0% D,L-carnitine and 0.5% L-Lys plus 0.2% L-Met significantly reduced ethanol-induced elevation of the various lipid classes with the exception of free fatty acids. The triglyceride contents in liver and plasma were inversely related to the concentrations …

The Response Of Premature Infants To Parenteral Amino Acids In The First Week Of Life, Mitzi Wilkinson Davis

Doctoral Dissertations

This study investigated the response of premature infants to parenteral amino acids and related that response to gender, amino acid concentration at birth, amino acid status prior to infusion, postnatal age, caloric intake, weight, intake of individual amino acids, and gestational age. Plasma samples were collected from 21 premature infants (gestational age 31. 2 ± 2.3 weeks) before the initiation of amino acid infusion and after 24 hours of infusion. Mixed umbilical cord samples were available from 10 of these infants. Eleven (11) infants (gestational age 30.8 ± 2.8 weeks) receiving parenteral amino acids with no enteral supplementation were evaluated …

A Comparison Of The Effects Of Single-Trait And Multiple-Trait Sire Selection On Dairy Cattle Performance, Kimberley Kirnan Hawkins

Doctoral Dissertations

A total of 477 Holstein cows, with data on 1278 lactations, and 823 conformation classifications were used to study the effects of single-trait and multiple-trait sire selection on production and type classification traits.

The production traits studied were mature equivalent milk yield, mature equivalent fat-corrected milk yield, and mature equivalent butterfat yield. The type classification variables studied were total score, and the major breakdown scores, general appearance, dairy character, mammary score, and body capacity. Sires utilized in the mating plan were selected on the basis of either predicted differences for fat-corrected milk (production bulls) or a selection index composed of …

Aspects Of The Genetics Of Bovine Blood Systems : Linkage, Heterosis, Gene Frequency And Association With Production Traits, Johnny E. Copeland

Doctoral Dissertations

Data from two separate beef cattle herds, the University of Tennessee (UT) Plateau Experiment Station Angus herd and the Virginia Polytechnic Institute (VPI) and State University herd at Front Royal, Virginia, containing Angus, Shorthorns, and Herefords, were utilized to investigate some of the genetic aspects of bovine blood systems. Analyses for linkage revealed that genes responsible for blood groups are not located on the sex chromosome. Attempts to find linkage between genes responsible for the F-V and R'-S' blood systems proved inconclusive. Studies of heterozygosity in the UT Angus herd using combinations of double homozygotes and heterozygotes between the F-V …

Unobtrusive Observations Of Cigarette Smoking, Robert Fisher

Doctoral Dissertations

The results of laboratory studies of cigarette smoking are of questionable value if the experimental smoking patterns are not like those of "real world" smoking. For instance, the amount of tar, nicotine and hazardous gases collected by a smoking machine may not reflect the amount smokers are actually exposed to unless the machine is programmed to smoke as do people in ordinary, day-to-day situations. Whether or not this is the case for any given laboratory study is not readily apparent due to a shortage of information on naturally occurring smoking patterns. As a step to remedy this problem, a naturalistic …

A Critical Edition Of Mildmay Fane's De Pugna Animi, Gerald W. Morton

Doctoral Dissertations

The purpose of this study was to prepare a diplomatic transcription and critical analysis of Mildmay Fane's De Pugna Animi, an unpublished manuscript play contained in British Library Ms. Add. 34221. The play, a political allegory, was written in 1650 and is the last play in the Fane canon which includes seven extant dramas.

The editorial method of the Malone Society was employed in the preparation of the manuscript. Every effort was made to produce a text true to the original manuscript. Textual notes appear at the bottom of pages. Explanatory notes are located at the end of the …

The Immediate Achievement And Retention Of Botany Content In A Natural Science Course Taught By Audio-Tutorial And Conventional Laboratory Methods, Raul Enrique Rivero

Doctoral Dissertations

The purpose of this investigation was to compare the use of two instructional methods, Audio-Tutorial and Conventional-Expositive, in teaching natural science at the college level. Freshmen college students were selected for both the experimental (A-T) and the control groups. The two groups involving twenty-one students were randomly selected from a population of 102 students and tested over a period of six weeks.

Measurements of two main dependent variables, immediate achievement and retention, were obtained by using two equivalent test forms given to the students during the first week of study (pretest) and during the sixth week (posttest). Three weeks after …

The Association Of Histamine Producing Bacteria With Tuna Fish Salad Formulations Containing Textured Soy Protein, Mansour Tavangaran

Doctoral Dissertations

This research was conducted to investigate the effect of storage time and temperature on histamine production by histidine decarboxylase positive bacteria in tuna fish salad extended with textured soy protein (TSP). Tuna salad mixtures containing 0, 15, and 30% TSP by weight were inoculated by a mixed culture of Proteus morganii 110SC2; Hafnia alvei, T8; Proteus morganii, im; Citrobacter freundii, T₃, and Escherichia coli, 58. The tuna salad samples were incubated at 8°C, 24°C, and 37°C. Chemical and microbial evaluations were conducted over a storage period of 6, 12, 24, and 48 hours. Histamine concentration was determined fluorometrically …

The Effectiveness Of Two Types Of Academic Support Services On The Academic Performance Of Black Undergraduate Students, Bill Jon Wells

Doctoral Dissertations

The purpose of this study was to assess the effectiveness of two academic support programs on the academic performance of black undergraduate students. Data were collected, analyzed and evaluated on 89 participants representing two treatment groups and one control group. The participants were freshman and sophomores enrolled in the University of Tennessee, Knoxville (UTK), Black Cultural Center (BCC) and the Education Advancement Program (EAP). The study was conducted in the 1981-82 academic school year. Two specific hypotheses were generated. It was hypothesized that students enrolled in the BCC and EAP would achieve significantly greater GPA mean gain scores than nonenrolled …

The Influence Of Grade And Body Type On The Performance Of Purchased Feeder Pigs, Earl D. Brooks

Doctoral Dissertations

Two trials involving 480 pigs were conducted to determine the influence of grade and body type on the performance of purchased feeder pigs.

Ninety U.S. No. 1, 90 U.S. No. 2 and 60 U.S. No. 3 pigs were purchased in each trial. The No. 1 and No. 2 grades were divided into three body types: type 3–longer, taller pigs; type 2–average for the grade; and type 1–shorter, compact pigs. The U.S. No. 3 grade pigs were divided only into the type 2 and type 1 categories.

The addition of 10% oats to the basal diet increased (P<.05) average daily gain of pigs after 7 days while additions of 10% alfalfa meal resulted in more feed (P<.05) consumed per pound of gain after 21 days on experiment.

The addition of …

Turbot Fillet Sections Cooked By Microwave And Conventional Heating Methods: Objective And Sensory Evaluation, Karen Madeira

Doctoral Dissertations

Energy and time conservation in food preparation is of concern to consumers and the microwave oven is one appliance that has been credited with energy and time savings. Although consumption of fish by consumers has been increasing, little has been reported on the microwave-cooking of fish. Therefore, an investigation was designed to compare the energy requirements of, the effects of heating on, and the acceptability of turbot, an underutilized species of fish, cooked in a microwave oven with that baked conventionally.

The microwave oven cooked the fish significantly faster, required less cooking power and energy, and demonstrated greater relative efficiency …

American Indian And Euro-American Impact Upon Holocene Vegetation In The Lower Little Tennessee River Valley, East Tennessee, Patricia A. Cridlebaugh

Doctoral Dissertations

Paleoethnobotanical remains recovered from Early Archaic through Historic Overhill Cherokee period archaeological sites in the lower Little Tennessee River Valley in Tennessee document prehistoric people's plant-exploitation patterns. This material provides the basis for establishing a model of prehistoric landscape change. Plant species represented by wood charcoal were assigned to bottomland, upland, and disturbed-upland habitats. Indian exploitation of upland favored species remained consistent through time. A progressively deforested landscape is indicated by diminished exploitation of bottomland-favored plant species in contrast to simultaneous increases in Indian utilization of disturbance-favored early successional taxa such as pine (Pinus spp.), cedar (Juniperus virginiana …

Pentecostal Healing: A Facet Of The Personalistic Health System Of Pakal-Na, A Village In Southern Mexico, Murl Owen Dirksen

Doctoral Dissertations

This research investigates the degree to which Pentecostals in Pakal-Na, Chiapas, Mexico, employ personalistic rather than naturalistic disease theory (Foster, 1976) in selecting curing methods, and it compares Pentecostal and non-Pentecostal employment of health resources. In naturalistic disease theory, illness results from impersonal, natural forces (i.e., cold, heat, wind and dampness) which cause an imbalance in natural body states. In personalistic disease theory, illness is caused by supernatural forces. Because of differences in believed sources of illness, these two theories of disease predispose individuals to select different therapies and curers.

For this study, personalistic/naturalistic categories were viewed as a continuum, …

A Comparison Of Alternative Price Forecasting Models For Slaughter Hogs, William Noel Blisard

Doctoral Dissertations

The purpose of this study was to develop a price forecasting model capable of accurately predicting the price of slaughter hogs one quarter in advance. Both time series and econometric models were hypothesized, estimated, and tested. In an attempt to improve fore casting accuracy, composite models were developed which utilized the price forecasts from both time series and econometric models as inputs. Two types of time series models were estimated. The simplest was an ARIMA model, which assumes current price is related to past price plus a random error term. Also estimated was a transfer function which is similar to …

Distribution Of Specific Antibody Activity Among Serum Immunoglobulin Isotypes Following Bovine Herpesvirus I Infection Of Cattle, James S. Guy

Doctoral Dissertations

The kinetics of antibody formation in Holstein-Friesan heifers following primary and secondary intranasal inoculation of bovine herpesvirus I (BHVI), reactivation of latent BHVl (RLI), and BHVI-induced abortion was determined. Sera were fractionated by gel filtration and ion exchange chromatography. The antibody activity within serum immunoglobulin isotypes was assessed by a virus plaque reduction assay (PRA).

The primary immune response to BHVl infection was characterized by the appearance of IgM and IgG antibodies in serum 7 days post inoculation (pi). Maximal IgG antibody activity occurred at 35 day pi in nonpregnant heifers and 14 days pi in pregnant heifers. Thereafter antibody …

Charles I. Barber (1887-1962), Residential Architecture In East Tennessee, Josette H. Rabun

Doctoral Dissertations

The purpose of this study was to historically document the life and residential designs of Charles I. Barber, senior partner in the architectural firm of Barber and McMurry in Knoxville, Tennessee from 1915 to 1962. Charles I. Barber planned and designed many residences throughout East Tennessee. More than 350 residential structures were documented as being built, altered, or added to during these forty-seven years. Much of Barber's architectural philosophy stemmed from his training at the University of Pennsylvania (1909-1911) which was one of the leading Beaux-Arts architectural schools in the United States. At the same time Barber was a student, …

A Genetic Analysis Of Corn Earworm (Heliothis Zea Boddie) Resistance In Maize (Zea Mays L.), John R. Attewell

Doctoral Dissertations

Resistance to the corn earworm (Heliothis zea Boddie) in corn (Zea mays L.) was studied to determine the inheritance of several characters thought to contribute to this complex trait.

Genetic effects among the inbred lines: T115, T220, T222, T224, T232, Mo18W, Ga209, Ky226, and the Mexican flint corn 'Zapalote Chico' (PI217413) were obtained using combining ability and generation means analyses for depth of earworm penetration, husk extension, and depth of blank tip. Silk maysin content was included in the combining ability analysis. Laboratory reared corn earworm larvae were applied to ensure a uniform level of infestation for all genotypes. Problems …

An Evaluation Of Computerized Systems For Acceleration Of Interpretations From Soil Surveys And Other Resource Information, Milton Allen

Doctoral Dissertations

Basically, two questions prompted this study: (1) is a digital soils data base needed? and, if so, (2) which system or systems can handle and present soils information most efficiently and effectively?

Objectives were: (1) to identify needs and problems of a digital soils database, (2) to evaluate many systems for handling soils information, and (3) to choose systems and use them to demonstrate the capabilities of computer-assisted spatial analysis and mapping systems in handling soil information.

Computerized soil surveys and digital soils data bases are needed because soils information is used in the planning process for nearly all types …

Inheritance, Generation Prediction, And Interrelationships Among Quantitative Characteristics In Four Triticum Aestivum L. Em Thell Cultivars, Paul Joseph Linnen

Doctoral Dissertations

The soft red winter wheat cultivars 'Arthur', 'Sullivan', 'Blueboy', and 'Pioneer S76', and their F₁, reciprocal F₁, F₂, reciprocal F₂, and backcrosses of the F₁ to the parents were grown in a randomized complete block design at three locations. A genetic model was developed to estimate additive, dominance, first-order epistatic, and reciprocal effects for grain yield, primary yield components, and several morphological characteristics. For all characteristics the gene action was not all additive, and dominance and/or epistatic types of gene action were also detected.

Prediction equations were developed to use the …