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Numerical Techniques For Classifying Forest Communities In The Tennessee Valley, Dennis Michael Mccarthy

Doctoral Dissertations

The main objectives of this study were:

1. To develop a series of vegetational classification systems based on the floristics of community strata, overstory structural functional features, and environmental parameter of a region typical of the temperate Tennessee Valley;

2. To examine the suitability of these classification systems for the complex forests of the Tennessee Valley;

3. To develop numerical tools for evaluating classification suitability;

4. To use these tools to seek out natural discontinuities in vegetational patterns.

To achieve these goals six multivariate cluster analysis programs were examined. Preliminary tests brought out undesirable properties in four of them, however, …

Development Of A Mathematical Model That Will Predict The Mean Daily Dietary Intake Of Pregnant Women Based Upon Sociological, Psychological And Physiological Factors Assumed To Be Related To The Mean Daily Dietary Iron Intake, Waneen Ann Liudahl

Doctoral Dissertations

The purpose of this investigation was to develop a mathematical model using linear stepwise regression analysis that would predict the dietary iron intake of pregnant women. Development of the mathematical model was based upon sociological, psychological and physiological factors assumed to be related to the dietary iron intake of pregnant women.

Fifty-seven pregnant women participated in the study. They were private outpatients of two obstetricians at the Macomb Clinic, Macomb, Illinois.

The dependent variable used in the development of the models was the seven-day mean daily dietary iron intake for each pregnant woman which was obtained during the second and/or …

Energy Utilization Characteristics Of Selected Electrical Commercial Food Service Equipment, Frank Romanelli

Doctoral Dissertations

Energy utilization characteristics for commercial food service equipment were determined to provide data to establish the cost of energy in the preparation of food products. Twenty pounds of frozen pre-cooked breaded chicken quarters were cooked to an end point temperature of 180°F using a deep fryer, a braiser, a two-pan bake oven, and a convection oven.

Kilowatt-hour readings were made to measure energy consumption of each piece of equipment. An alternate technique was developed to estimate energy consumption of each piece of equipment by using energy ratings in combination with measuring the on-time of the thermostat signal light. The energy …

Food And Nutrition Misconceptions, Knowledge, Related Interests, And Information Sources Of Knoxville, Tennessee, High School Students, Lois Ann Wodarski

Doctoral Dissertations

Food and nutrition misconceptions, food and nutrition-related interests, and information sources of 185, tenth through twelfth grade students from a selected sample of Knoxville, Tennessee, high schools were studied. Relevant information was obtained through the development and administration of a questionnaire designed to distinguish between level of food and nutrition knowledge and degree of subscription to misconceptions, to determine which topics within the realm of food and nutrition were of interest to the teenage population, and to ascertain sources of information for the various categories of food and nutrition knowledge.

Students of both sexes and of all grade levels were …

Intrerconversion Of Replicative Forms Of Sindbis Virus Rna And The Electrophoresis Of Viral Rna, Jonathan D. Martin

Doctoral Dissertations

Three species of double-strand (ds) RNA, designated RF I, RF II, and RF III in order of decreasing size, were produced by RNase treatment of extracts of chicken embryo cells infected for 6 h with Sindbis virus. These species were identifiable with those reported by Simmons and Strauss (28). At a low level of enzyme (0.001 µg/ml) the major species obtained was RF I. When the enzyme concentration was increased 10-, 100, and 1000-fold, there was a progressive increase in the proportions of RF's II and III and a concurrent decrease in the proportion of RF I. Only RF I …

A Biosystematic Study Of C̲Ḻe̲M̲A̲Ṯi̲S̲ Section V̲I̲O̲Ṟṉa̲ Subsection V̲I̲O̲Ṟṉa̲E̲, William Michael Dennis

Doctoral Dissertations

A biosystematic study was conducted on Clematis subsection Viornae. Morphological, cytological, biochemical, ecological and distributional data were collected from herbarium, field and laboratory investigations. Three ordinations (Principle Components Analysis, Principle Coordinates Analysis and Non-metric Multidimensional Scaling Analysis) and a cladistic analysis (following procedures outlined by Nelson and Van Horn) were used to order taxa into phenetic and phylogenetic classifications. From these studies eight taxa are recognized: f. addisonii, f· glaucophylla, f· pitcheri var. pitcheri, f. pitcheri var. dictyota, C. reticulata, C. texensis, f· versicolor and C. viorna. Scanning electron microscopy (SEM) of pollen showed no interspecific differences. SEM was useful …

Evaluation Of Mass Selection For Yield In Corn As Measured By Random Sb1 Slines And Their Test Crosses, Syrus Abd-Mishani

Doctoral Dissertations

A mass selected com population (MS 13), and the parent variety Jellicorse (Je) were evaluated at Knoxville and Crossville using random S₁ lines per se and S₀ lines topcrossed to an unrelated single cross. The selected population (MS 13) had undergone thirteen generations of mass selection for ear com yield. S₁ lines and their testcrosses of MS 13 did not demonstrate statistically significant average yielding superiority over lines of Je at either Knoxville or Crossville, or the two locations combined. Both S₁ and testcross progenies of MS 13 were greater in yield than Je at Crossville …

Aluminum Toxicity In Two Snapbean Varieties, Gonasageran Naido

Doctoral Dissertations

The mechanism of A1 tolerance in plants was investigated in a series of greenhouse experiments which compared two varieties of snapbeans (Phaseolus vulgaris L.) that were differentially tolerant to A1. The more tolerant 'Dade' variety was compared to 'Romano' with respect to growth, mineral nutrition, pH, total acidity, A1 fixation by root macerates, organic acid content, morphological effects of Al, and to location of A1 and P in roots. To compare the two varieties with respect to growth and mineral nutrition, seedlings were grown in one-fifth strength Hoagland's nutrient solution (pH 4.8) at 0, 4, 8 and 12 ppm added …

Bone Flutes And Whistles From Archaeological Sites In Eastern North America, Katherine Lee Hall Martin

Masters Theses

The purpose of this study was to systematically classify perforated bone tubes known as flutes or whistles which had been recovered from archaeological sites in eastern North America. A sample was established from specimens described in the literature and additional specimens examined by the author. Sizeable collections in the Rochester Museum and Science Center in Rochester, New York, and the Ohio State Museum in Columbus, Ohio, were measured and photographed by the author. Specimens were also viewed at the McClung Museum in Knoxville, Tennessee.

A descriptive typology was constructed and spatial-temporal and functional correlations were tested against it. Spatial-temporal factors …

Factors Influencing Tennessee Teen 4-H Leader's Perception And Performance Of Leadership Tasks, Martha Jo Tolley

Masters Theses

The purpose of this study was to explore the role perceptions of teen leaders and to identify some factors which influenced their role performance.

The population of the study consisted of all 453 4-H members who attended the 1975 State 4-H Round-Up at The University of Tennessee in Knoxville.

The data were organized under five major headings: (1) personal characteristics of respondents, (2) perceptions teen leaders had of their role in the 4-H organization, (3) relation between teen leaders' role performance and their feelings of preparedness to perform the leadership role, (4) influence of personal, 4-H participation, and leadership characteristics …

Corn Yields And Nutrient Concentrations In Plants, Soils, And Soil Solutions As Affected By Levels Of Dairy Manure, Sewage Sludge, And Ammonium Nitrate, James L. Magness

Masters Theses

Various rates of dairy manure, sewage sludge, and NH₄NO₃ were applied to a Sequoia silt loam and a Whitwell loam for a two year period to determine their relative effects on corn (Zea mays) responses and some chemical properties of the soils, plants, and soil solutions. Application rates of manure and sludge were 0, 9, 18, 36, and 72 metric tons per hectare on a dry matter basis and 0, 112, 224, 448, and 896 kg/ha for NH₄NO₃. The manure and sludge checks along with all of the NH₄NO₃ plots …

Evaluation Of Rapid Reading Hay Moisture Meters For Field Use, Joseph Keith Mcdonald

Masters Theses

An instrument for use by farmers and agricultural research workers to quickly, accurately, and economically determine the moisture content of hay in the windrow would significantly improve the efficiency of forage crop production. However, no method or technique has been shown to be a successful tool for obtaining such determinations simply, precisely, and with easily portable equipment. An experiment was desig-nated to field test a commercially available conductance-type moisture meter and to identify needed revisions of the meter or a measuring technique that might improve its accuracy. An experimental conductance-type meter was also built and tested in an attempt to …

The Effect Of Two Levels On Dietary Phosphorus On Laying House Performance Of Four Strains Of White Leghorn Layers, Huthail Najib

Masters Theses

The objective of this study was to determine the response of four strains of high producing Single Comb White Leghorn—type hens to two levels of dietary phosphorus as measured by egg production, egg specific gravity, egg weight, feed efficiency, mortality, and the percent tinted eggs and to study the effect of time of oviposition on egg specific gravity. The experiment was conducted for eleven 28—day periods using January hatched pullets housed at the rate of two birds per 20.3 cm. wide cage. Two diets containing two levels of phosphorus, 0.4 percent and 0.6 percent, were compared. Each was fed to …

The Effects Of Fall Applications Of Glyphosate On Johnsongrass, Soy Beans, And Corn, Jewell R. English Jr.

Masters Theses

Controlling johnsongrass [Sorghum halepense (L). Pers.] in such agronomic crops as corn (Zea mays L.) and soybeans [Glycine max (L.) Merr.] presents a major problem to many farmers. Although several preemergence herbicides have been developed to control seedling johnsongrass, in general rhizome johnsongrass is primarily responsive only to foliar-applied chemicals. One such postemergence chemical which gives excellent control of rhizome johnsongrass is glyphosate (N-phosphonomethyl glycine). If glyphosate is applied in the spring, a waiting period is required both before spraying to allow johnsongrass foliage to develop and then for trans location of the herbicide following application. As this waiting period …

Variation In American Sycamore (Plantanus Occidentalis L.) On The Western Highland Rim Of Tennessee, George Samuel Foster Jr.

Masters Theses

The objective of the study was to evaluate natural variation in specific gravity, fiber length, total extractives, and rooting ability of mature stem cuttings of American sycamore (Platanus occidentalis L.) growing on upland sites on the western Highland Rim in Middle Tennessee. Twelve upland trees were selected which had a minimum age of 12 years at breast height; for comparison purposes, an equal number of bottomland trees were selected which were also at least 12 years old at breast height. The upland trees were all located on disturbed sites with acid to highly acid soils. The first 12 years growth …

Honey Marketing By Tennessee Beekeepers, Kimball M. Kennedy Iii.

Masters Theses

The purpose of this study was to; (1) delineate the structure of the marketing system for Tennessee honey, and (2) determine the size, scope and nature of Tennessee's beekeeping associations. A purposive stratified sample of 51 Tennessee beekeepers was personally interviewed. In addition, a mailed questionnaire was sent to each of the beekeepers' associations. The surveyed beekeepers were classified as hobbyist (1-39 colonies), part-time (40-299 colonies), and commercial (300 plus colonies). The data were analyzed using fre-quency distributions, condescriptive, cross-tabular, and breakdown information which was retrieved from the SPSS computer program. The average sample of beekeepers was 54.3 years old …

A Comparative Analysis Of Selected Tennessee 4-H Standards For The Years 1965 And 1975 With Projections To 1981, James A. Batsford

Masters Theses

Four-H, the youth development phase of Cooperative Extension, has grown to be one of the largest youth organizations in the world, and enrolls four million boys and girls annually in its citizen build-ing projects and activities. Four-H in Tennessee involved 166,390 youth in 1975, but had a much larger potential. To bolster enroll-ments, 4-H Standards were developed in the mid-1960's. After ten years it was felt that the Standards might need re-evaluating. There-fore the purpose of this study was to comparatively examine Tennessee 4-H Club data for 1965 and 1975 regarding participation, organization and leadership, considering the utility of the …

Farmland Consolidation And Fragmentation In Upper East Tennessee, William T. Coyle

Masters Theses

Forty percent of farm operators in the 12-county Upper East Tennessee region have expanded their farmland base at one time or another. Consolidation of small farm units into larger ones has been an important adjustment strategy that the nation's farmers have used to maintain or improve their farm income. The gains from this strategy are not clear in Upper East Tennessee. In the region, those farmers who have expanded their land base own an average of 93 acres, more than twice the holdings of farmers who have not expanded. Nevertheless, 93 acres is substantially below the state average of more …

Comparison Of Fish And Benthic Faunal Compositions In Polluted And Pristine Forks Of A Mountain River, Lynn Betson Starnes

Masters Theses

The little Pigeon River in Sevier County, Tennessee presents a near ideal situation for the study of the effects of domestic sewage on species composition in a mountain river. The little Pigeon system has two principal components, the West and Middle Prongs. The West Prong is polluted by municipal effluent from Gatlinburg and Pigeon Forge, while the Middle Prong remains relatively pristine. Physicgraphically, the two prongs are strikingly similar. The great similarity of natural physical and chemical water quality parameters presents an opportunity to use the pristine prong as a control for the study of changes, probably resulting from pollution, …

A Study Of The Seasonal Trend Of Several Nutrient Elements In Golden Delicious Apple Leaves In Tennessee Orchards To Determine The Ideal Time To Collect Leaf Samples For Foliar Analysis, Michael Blaine Donoho

Masters Theses

Leaf samples from Golden Delicious apple trees were collected at nine dates throughout the growing season at four locations in Tennessee. The leaf samples were analyzed for precent N, P, K, Ca and Mg to determine the seasonal trends of these elements and to determine if a common period of relatively little nutrient change exists. N, P and K showed a general decrease in concentration throughout the season. Ca levels increased throughout the:growing season, but Mg showed irregular changes. A period of minimal change in mineral composition of leaves with the exception of Mg was July 30 through August 27 …

A Partial Analysis Of The 1975-76 Tennessee Extension Family Life Survey, Virginia Clark Cobb

Masters Theses

A total of 829 homemakers was interviewed by Extension home econo-mists in; the 1975-76 Family Life Survey for the purposes of characterizing selected Tennessee families and studying relations of certain family vari-ables and family characteristics. Variables had to do with homemakers' statements regarding their families' interaction and communication, self-esteem and family rules. Homemakers selected adjectives for each of the variables mentioned above that they felt applied to their family. Certain adjectives were positive and others were negative. Homemakers who checked more positive than.negative items were said to have a nurturing family. Others were non-nurturing. The typical family had 1.7 male …

Comparative Site Index Of Sweetgum (Ḻi̲Q̲U̲I̲Ḏa̲Mḇa̲Ṟ S̲Ṯy̲Ṟa̲C̲I̲F̲Ḻu̲A̲ L.) And Southern Red Oak (Q̲U̲E̲Ṟc̲U̲S̲ F̲A̲Ḻc̲A̲Ṯa̲ Michx.) In West Tennessee, William Clayton Edwards

Masters Theses

Sweetgum (Liquidambar styraciflua L.) and southern red oak (Quercus falcata Michx.) occur naturally together over a continuum of sites in West Tennessee; sweetgum performing better on the best bottomland sites and southern red oak out performing sweetgum on the poorest upland sites such as the dry ridges. Previous research conducted at Ames Plantation, the study area, suggested that the midslope topographic position was about equally productive for both species. However, this conclusion was tentative and was made with incomplete data. Hence an on-the-ground study for verification purposes was necessary. A major objective of this study was to verify that the …

Influence Of Selected Variables Upon Clothing Knowledge Of Fifth Grade 4-H Club Girls In Mcminn County, Tennessee, Dorothy Marsha Carroll Flanigan

Masters Theses

The purpose of this study was to determine the clothing knowledge of fifth grade girls at the beginning of the year and again at the end of the year and the factors that affected that knowledge. The factors were related to the level of clothing knowledge as indicated by the differences in scores on pretests and posttests given at the beginning of the fifth grade and at the end of the fifth grade. The 184 girls used in the study were from the fifth grade enroll ment in the McMinn County, Tennessee, school system in 1973-1974. Information was secured by …

Fuel Consumption Of Gasoline And Diesel Tractors When Used With Selected Implements In West Tennessee, Roger Garland Carpenter

Masters Theses

The rate of fuel consumption was measured for both gasoline and diesel tractors in size classes for use with two-, four-, and six-row implements. Tractors were operated at four different speeds with various sizes of the following implements: moldboard plow, tandem disc, planter, and cultivator. Fuel meters were designed and constructed to measure the amount of fuel consumed for gasoline and diesel tractors during field opera-tions. The fuel consumption was measured volumetrically by using systems of electrically-actuated solenoid valves to control the flow of fuel into and out of graduated cylinders. The moldboard plows in almost every instance required the …

Agribusiness In The Tennessee Economy, William Donald Pitt

Masters Theses

The study was concerned with the magnitude and Importance of agribusiness firms in the Tennessee economy. The principal objectives were to determine the degree of economic activity and employment of agribusiness located throughout Tennessee and to estimate the impact of agribusiness in the Tennessee economy. The agricultural subsector was set apart from the Tennessee economy and was viewed as an open model economy. The subsector was delineated as to agricultural inputs firms, agricultural output firms, and agricultural production. The method used in the analysis employed multipliers taken from previous¹ studies which when multiplied by data obtained by a statewide …

The Evaluation Of Two Extreme Types Of Angus Steers, Owen Thomas Hughes Iii.

Masters Theses

The purpose of this experiment was to evaluate the perform-ance of two extreme types of Angus steers grown and finished on two common Tennessee systems. Forty animals were put on pasture; half Good-grade and half X-grade; twenty animals were put into the drylot; half Good-grade and half X-grade. One system included a winter pasture phase, a spring-summer pasture phase, and a finish-ing phase. The other system consisted of a drylot silage phase and a finishing phase. During the winter, the steers grazed their respective pastures of fescue and clover. The animals grazed their spring-summer pasture with no supplemental feed. At …

Evaluation Of In-Furrow And Foliar Insecticidal Treatments For The Control Of Thrips (Thysanoptera) On Seedling Cotton In Tennessee, Gayle Franklin Bailey

Masters Theses

In-furrow and foliar insecticides are the two most common treatments used to control injurious levels of thrips on seedling cotton. Six in-furrow insecticidal treatments and seven foliar insecticidal treatments were applied at four different locations in the spring of 1976 in the West Tennessee area. These treat-ments were evaluated in regard to thrips control on seedling cotton and also their effect upon plant populations, plant heights, and plant vigor. In-furrow treatments were applied at planting while foliar sprays were applied after the cotton seedlings had emerged. Whole-plant samples were taken from all treated plots exactly one week after the foliar …

Juvenile Delinquency In Rural Areas : An Exploratory Study In East Tennessee, William Dan Bolton

Masters Theses

Juvenile delinquency has become a major concern in both large cities and small communities. However, in the past most research under-taken has dealt with those delinquency problems in city and suburban areas. Very little research has been addressed specifically to rural settings. This study was a modest attempt to examine delinquency problems and services in rural Tennessee. The analysis included three components: 1) compilation of existing secondary data about rural-urban delinquency patterns in the United States and Tennessee, 2) a survey of officials and professionals working with juvenile problems in East Tennessee, and 3) preliminary estimation of costs associated with …

Development And Evaluation Of Self-Paced Instructional Units For Two Dendrology-Silvics Coures In Forestry, John Glenn Palmer

Masters Theses

Self-paced instructional units were developed, used, and evaluated in two dendrology-silvics courses. This new teaching scheme: (1) com-pletely replaced the group-paced, lectured laboratory sessions with self— paced, indoor, slide-tape programs in Dendrology and Silvics of the Gymnosperms (Forestry 3050), and (2) supplemented the group-paced, lec-tured fieldtrips with a self-paced, taped, fieldtrip program in Dendrology and Silvics of the Woody Angiosperms (Forestry 3040). The study was divided into two major phases: (1) development of the instructional units, and (2) evaluation of the instructional units. The development phase was concerned with: (1) selection of appropriate instructional materials; (2) preparation of the instructional …

Yam (Dioscorea Spp) Flour Fortification With Protein Of Soybean Flour, Gabriel Ade Falasinnu

Masters Theses

The objective of this study was to determine the effect of added soybean flour on some attributes of the rehydrated mass prepared from the mixture of soybean and yam flours. Fortifying fufu (or iyan), a food made from yam tubers, is a potential means of improving the nutritional level of certain African people. The yam flour prepared by freeze drying had 1.25% protein; the commercial soybean flour, 53.15%. Samples prepared from a yam-soybean flour mixture were softer and more tacky when compared to samples prepared from yam flour. Reducing the proportion of rehydration water in samples which contained soybean flour …