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Theses/Dissertations

1971

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Full-Text Articles in Life Sciences

The Environmental Crisis; The Effects Of Ecology Courses On High School Students, Carol C. Fletcher Dec 1971

The Environmental Crisis; The Effects Of Ecology Courses On High School Students, Carol C. Fletcher

Dissertations and Theses

It is a basic premise of this thesis that an environmental crisis exists in the world today and has been worsening at least since World War II. The crisis is evident in the population explosion, the deteriorating air and water quality, and the depletion of our natural resources. With the feeling that all persons must become aware, concerned, and involved with the environmental crisis if the trend is to be reversed, this study is concerned with one segment of the population – high school students.

Sociologists, and especially human ecologists, have not been concerned professionally with the environmental crisis, but instead ...


Forest Communities Of The Great Valley Of East Tennessee And Their Relationship To Soil And Topographic Properties, William Haywood Martin Dec 1971

Forest Communities Of The Great Valley Of East Tennessee And Their Relationship To Soil And Topographic Properties, William Haywood Martin

Doctoral Dissertations

The complex physiographic and climatic history of the Great Valley of East Tennessee has resulted in development of diverse alternating ridge and valley land forms and soils which provide equally diverse forest habitats.

The objectives of this study were (1) to quantify certain topographic features, (2) to analyze statistical relationships of vegetation and tree taxa to selected soil properties and topographic features, (3) to assess magnitude and predictability of these relationships, (4) to document taxonomic diversity of tree taxa, (5) to document and delimit contemporary forest communities and describe interactions with soil-site properties, and (6) to consider relationships of these ...


Variance Analysis Of Basis Weight Variation On The Pilot Machine, Timothy A. Armstrong Dec 1971

Variance Analysis Of Basis Weight Variation On The Pilot Machine, Timothy A. Armstrong

Paper Engineering Senior Theses

The purpose of this study was to determine the significance of the variations of the pilot machine of the Department of Paper Science and Engineering at Western Michigan University by variance analysis conducted on basis weight profiles obtained from the Industrial Nucleonics scanning basis weight gauge. The profiles obtained from the basis weight gauge were subjected to a computer program which computed the cross-direction, machine-direction, and random component variations and determined F-ratios. The F-ratio shows the significance of the component variation. Cross-direction variation was found to decrease with speed. Machine-direction variation showed no significant trend and the random variation decreased ...


An Investigation Of Some Of The Environmental And Edaphic Factors Effecting The Detoxification And Subsequent Degradation Of An Herbicide, Butachlor, Douglas D. Baird Dec 1971

An Investigation Of Some Of The Environmental And Edaphic Factors Effecting The Detoxification And Subsequent Degradation Of An Herbicide, Butachlor, Douglas D. Baird

Doctoral Dissertations

The influence of specific edaphic environmental factors on the detoxication and subsequent degradation of N-Butoxymethyl-2-chloro-2', 6' diethylacetanilide (butachlor) was evaluated under greenhouse and growth chamber conditions. Detoxication of butachlor, as measured by bioassay with barnyardgrass, was significantly enhanced by increasing temperatures to 32 C, making the soil alkaline, flooding, introducing relatively high levels of organic matter and by allowing exposure of more than four weeks. Total degradation of butachlor to C02 was enhanced also by high temperatures and length of exposure but was inhibited to a certain extent by flooding. Soil produced metabolites, of which three were soluble in ...


Placental Transfer And Maternal-Fetal Utilization Of Manganese By Third Trimester Pregnant Heifers, Boyce P. Wanamaker Dec 1971

Placental Transfer And Maternal-Fetal Utilization Of Manganese By Third Trimester Pregnant Heifers, Boyce P. Wanamaker

Masters Theses

Although manganese has been demonstrated to be required for normal life processes, little information is available on the placental transfer and maternal-fetal utilization of this mineral in the bovine. Nine pregnant and three non-pregnant heifers were used in this study. They were dosed with a tracer level of radio-manganese for blood balance and subsequent placental transfer and maternal-fetal manganese utilization studies. Results of this study suggested total blood radio-manganese levels to drop from 14% of the administered dose at 3 hours to 1.8% after 144 hours. Blood clearance studies indicated that equilibrium between red cells and plasma was reached ...


The Allelopathic Influences Of Sassafras Albidum In Old Field Succession In Tennessee, Robert Edward Gant Dec 1971

The Allelopathic Influences Of Sassafras Albidum In Old Field Succession In Tennessee, Robert Edward Gant

Masters Theses

The purpose of this investigation was to study the mechanism that allows Sassafras albidum to maintain itself in relatively pure stands through many successional stages. Sassafras albidum is a common woody member of the old field community in Tennessee, invading in the early seral stages and surviving into the mature forest. Compounds known to be inhibitory to plant growth have been isolated from sassafras by other investigators. The presence of these terpenoid compounds in various organs of this plant suggests the existence of a possible allelopathic interference mechanism.

A survey of the internal and external herbaceous ground cover revealed the ...


The Responses Of Ecologically Dissimilar Populations Of The Water Snake, Natrix Sipedon Sipedon To Surface Extracts Of Prey Species, With Observations On Feeding And Defense Behaviors, Doris Gove Dec 1971

The Responses Of Ecologically Dissimilar Populations Of The Water Snake, Natrix Sipedon Sipedon To Surface Extracts Of Prey Species, With Observations On Feeding And Defense Behaviors, Doris Gove

Masters Theses

Observations of defensive and feeding behavior of Natrix sipedon were made in the field and in the lab. Crypticity, mimicry of poisonous snakes, striking, production of cloacal secretion and tail autonomy were defensive behaviors discussed. Feeding behaviors discussed were hunting, catching prey and tongue-flicking.

Experiments were performed on the responses of snakes from ecologically dissimilar populations of N. sipedon to surface extracts of local prey species. The populations were: (1) a laboratory-reared litter of ten one-year-old snakes; (2) six wild-caught snakes from Sterchi's fish hatchery in north Knoxville, Tennessee; and (3) six wild-caught and eight newborn snakes (a litter ...


The Useful Seed Plants And Plant Products Of Kenya, Elizabeth A. Muthiani Dec 1971

The Useful Seed Plants And Plant Products Of Kenya, Elizabeth A. Muthiani

Master's Theses

No abstract provided.


Fraction Of Bacterial Ribosomes, Katty S. F. H. Yang Dec 1971

Fraction Of Bacterial Ribosomes, Katty S. F. H. Yang

Master's Theses

No abstract provided.


The Comparison Of A Primary And Secondary Amine As Collectors In Froth Flotation Techniques For Primary Clarification Of Paper Mill Effluent, Gerard M. Marshall Nov 1971

The Comparison Of A Primary And Secondary Amine As Collectors In Froth Flotation Techniques For Primary Clarification Of Paper Mill Effluent, Gerard M. Marshall

Paper Engineering Senior Theses

The following investigation deals with primary clarification by use of froth flotation techniques. A primary amine was compared to a secondary amine in their collection properties at three pH values. pH variation was found to have an effect on the water content in the foam and the amount of solids collected. A higher pH showed less water content in the foam resulting in higher solids content.

The study indicated that sedimentation had better percent solids coupled with it being a less expansive operation enables it to continue while more efficient methods in flotation are sought out.


The Effect Of The Hydrogen Ion And Light On The Membrane Properties Of Nitella, Danley F. Brown Sep 1971

The Effect Of The Hydrogen Ion And Light On The Membrane Properties Of Nitella, Danley F. Brown

Environmental Science and Ecology Theses

Using the Kitasato hypothesis as a basis, the effect of H+and light on Nitella was investigated. Upon a light to dark transition, the cell resting potential at pH 5.7 depolarized, whereas at pH 4.7 the membrane became hyperpolarized. Membrane conductance and H+ extrusion were not significantly affected by the pH change 5.7 to 4.7. Light promoted increases in both membrane conductance and H+ fluxes. All cells except those having extreme resting potential values, either high or low, were responsive to light. The action spectra for H+ flux, resting potential and membrane conductance is not the ...


"The Application Of Zeta Potential For The Effective Retention Of Titanium Dioxide In Chemically Modified Systems", John W. Clapp Sep 1971

"The Application Of Zeta Potential For The Effective Retention Of Titanium Dioxide In Chemically Modified Systems", John W. Clapp

Paper Engineering Senior Theses

This study was done to determine how to obtain maximum effective filler retention in a fiber and titanium dioxide system. Retention of fillers in a fibrous system is greatly influenced through the use of high molecular weight polymers. It was found that by using cationic and anionic polymers in the same system, a synergistic effect results which yields a higher effective retention than if either polymers were used along. Furthermore, by precisely controlling the amounts of each polymer so as to obtain the isoelectric point in zeta potential; the peak effective retention is reached.


Vocalizations Of The Townsend Chipmunk (Eutamias Townsendii), Greig Michael Warner Sep 1971

Vocalizations Of The Townsend Chipmunk (Eutamias Townsendii), Greig Michael Warner

Dissertations and Theses

This study describes and analyzes the vocalizations of the Townsend chipmunk (Eutamias townsendii) in Oregon. Tape recordings of calls were collected primarily from Forest Park in Portland (Oregon) during 1970 and 1971, and sonograms of these recordings were produced. Findings were compared with those of Brand (1970) who investigated E. townsendii vocalizations in California. The prominent calls in the vocal repertoire of townsendii are the quist, the quirt, and the chipper. These calls all appear to be warning calls. The quist note is a a chevron-shaped (A) figure representing a sound which begins at a low frequency (1-2 KC), sharply ...


The Role Of D-Gluconic Acid In The Regulation Of The Synthesis Of The Enzymes Of The Entner-Doudoroff Pathway In Pseudomonas Fluorescens, Steven C. Quay Aug 1971

The Role Of D-Gluconic Acid In The Regulation Of The Synthesis Of The Enzymes Of The Entner-Doudoroff Pathway In Pseudomonas Fluorescens, Steven C. Quay

Honors Theses

Induction of Entner-Duodoroff pathway enzymes in Pseudomonas fluorescens was investigated to study the role of gluconate as a possible inducer. Glucose oxidase-deficient mutants were isolated and characterized. One of these mutants, gox-7, was deficient in particulate glucose oxidase; another mutant, gox-17, was deficient in particulate glucose and gluconate oxidase activities. Gluconate, but not glucose, induced synthesis of gluconokinase and 6-phosphogluconate dehydratase in both mutants. High constitute levels of 2-keto-3-deoxy-6-phosphogluconate aldolase were found when both mutants were grown on glucose. Growth of parent and both mutant strains on glycerol also resulted in high levels of Entner-Doudoroff pathway enzymes. It was concluded ...


Studies On Inhibition, Activation And Substrate Specificity Of The Alkaline Phosphatase Activity From The Thymic Lymphomas Of C57b1 Mice, Marvin T. Williams Aug 1971

Studies On Inhibition, Activation And Substrate Specificity Of The Alkaline Phosphatase Activity From The Thymic Lymphomas Of C57b1 Mice, Marvin T. Williams

ETD Collection for AUC Robert W. Woodruff Library

Alkaline phosphatase activity in C57B1 mice thymic lymphomas has been characterized using pH optima, heat inactivation, substrate ratio and electrophoretic mobility as parameters. This study was undertaken to further characterize the alkaline phosphatase activity of the thymic lymphomas of C57B1 mice using metal ion activation, inhibition and substrate specificity as parameters. Magnesium chloride, potassium chloride and sodium chloride were used as activators of alkaline phosphatase activity. Ethylenediamine tetraacetic acid (EDTA), L-phenylalanine and zinc sulfate were used as inhibitors of alkaline phosphatase activity. Para-nitrophenyl phosphate, fructose 1, 6 diphosphate, adenosine triphosphate and sodium pyrophosphate were used in studies on substrate specificity ...


Characterization Of A Value Transfer Ribonucleci Acid (Trna) Mutant Of Escherichia Coli, Julian Edward Thomas Sr. Aug 1971

Characterization Of A Value Transfer Ribonucleci Acid (Trna) Mutant Of Escherichia Coli, Julian Edward Thomas Sr.

ETD Collection for AUC Robert W. Woodruff Library

No abstract provided.


An Explanation For The Apparent Effect Of Cod Liver Oil On Sulfur Metabolism In The Albino Rat, Jayne Tigert Morris Aug 1971

An Explanation For The Apparent Effect Of Cod Liver Oil On Sulfur Metabolism In The Albino Rat, Jayne Tigert Morris

Doctoral Dissertations

An interaction between inorganic sulfur and cod liver oil (CLO) has been proposed in the normal metabolism of the albino rat after a gross malformation of the hind limbs was observed in rats fed a diet low in sulfate and without CLO. The rats were fed these diets from the time they were two weeks of age through the seventh week of life. Toward the end of this period, the fourth week after weaning, the lesion was observed. The study included four basic variations of a diet low in sulfate: with and without CLO and with and without vitamin E ...


Serological Studies On Twelve Species Of Candida, Etta W. Fraser Aug 1971

Serological Studies On Twelve Species Of Candida, Etta W. Fraser

Theses & Dissertations

The studies on the serology of Candida emphasize the fact that their antigenic structure is complicated. The results of the agglutination, precipitin reactions and complement fixation tests are confusing, contradictory and, so far, too impractical for the clinical laboratory. This study is an attempt to clarify the situation by using the newer techniques of the Ouchterlogy agar gel-diffusion precipitin method, (18) the hemolysin method, as well as the usual agglutination procedure. Since the precipitin method appears of possible value in diagnosis, this will be the main emphasis in this work.


The Effect Of Pulp Mill Effluents On The Carbon Dioxide Evolution Of Three East Texas Soils, John C. Morris Aug 1971

The Effect Of Pulp Mill Effluents On The Carbon Dioxide Evolution Of Three East Texas Soils, John C. Morris

Electronic Theses and Dissertations

Two pulp mill effluents, NaOH extraction water from the pulp bleaching process and water from the chlorination step of the pulp bleaching process, were applied to jars containing three East Texas soils. Carbon dioxide evolution was then measured with an infrared gas analyzer to determine the effect of the effluents on the respiration of soil microorganisms. The relationship between effluent treatments was not statistically significant, though detrimental effects were observed in the heavier soil. Irrigation of clays and clay loams with the effluent is not recommended. Irrigation of sandy soils should be possible if there is no danger of sub-surface ...


A Comparative Study Of The Helminth Fauna Of Salmo Gairdneri Rich. From Three Different Environments: A Hatchery, A Lake And, A River, Jose Felipe Ribeiro Amato Aug 1971

A Comparative Study Of The Helminth Fauna Of Salmo Gairdneri Rich. From Three Different Environments: A Hatchery, A Lake And, A River, Jose Felipe Ribeiro Amato

Master's Theses

No abstract provided.


A Biosystematic Study Of Cacalia Atriplicifolia L. With Emphasis On Its Life History, Tso Pen Chang Aug 1971

A Biosystematic Study Of Cacalia Atriplicifolia L. With Emphasis On Its Life History, Tso Pen Chang

Master's Theses

No abstract provided.


A Field Experience With The Nutrition Section Dallas City Health Department, Dallas, Texas, Rebecca Mcneill Mullis Aug 1971

A Field Experience With The Nutrition Section Dallas City Health Department, Dallas, Texas, Rebecca Mcneill Mullis

Masters Theses

This thesis relates observations and experiences during an eight-week field experience while with the Nutrition Section of the Dallas City Health Department. The purpose of this field experience was to integrate academic theory and practical application in the field of public health nutrition. In addition, the field experience was to provide an opportunity to observe nutritional problems related to the various stages of the life cycle and to work with other ethnic groups, including blacks and Chicanos.

The field experience was designed to allow the author to familiarize herself with the philosophy and principles of public health. Through observation and ...


Field Experiences With The Nutrition Section Of The Division Of Health, Wisconsin Department Of Health And Social Services, Roberta Jean Hine Aug 1971

Field Experiences With The Nutrition Section Of The Division Of Health, Wisconsin Department Of Health And Social Services, Roberta Jean Hine

Masters Theses

This thesis is based upon the observations and experiences during eight weeks with the Nutrition Section of the Division of Health, Wisconsin Department of Health and Social Services. The purpose of the field training was to complement academic training at The University of Tennessee and to supplement concurrent field experiences in Knox County.

A variety of experiences aide the student in her study of the nutrition program as a component of organized health services. Information was obtained on history, organization and programs of the Division of Health and the Nutrition Section through selected readings, conferences, conversations, and observations. Observations of ...


Seasonal Food Habits Of The Black Bear (Ursus Americanus) In The Smoky Mountains Of Tennessee And North Carolina, Larry Eugene Beeman Aug 1971

Seasonal Food Habits Of The Black Bear (Ursus Americanus) In The Smoky Mountains Of Tennessee And North Carolina, Larry Eugene Beeman

Masters Theses

This study was conducted on the Tennessee side of the Great Smoky Mountains National Park and game management areas in North Carolina. Information on seasonal food habits of the black bear (Ursus americanus) was obtained through analyses of scat and stomachs collected during 1969 and 1970.

In the Great Smoky Mountains National Park herbaceous species were the most common food items in the spring. When berries of shrub species matured, bears at large qunatities of Rubus sp., Vaccinium sp., and Gaylussacia sp., A saprophyte, Conopholis americana, was also an important food item during the summer and early fall seasons. Fruits ...


Field Observation And Experiences In The Division Of Nutrition - Ohio Department Of Health, Nancy Luce Young Aug 1971

Field Observation And Experiences In The Division Of Nutrition - Ohio Department Of Health, Nancy Luce Young

Masters Theses

Nutrition is an integral part of life and health. Textbooks and academic training in nutrition need to be supplemented with practical experience in the community in order to round out a nutritionist's training. The eight-week field experience in a health agency was planned to increase the breadth of the student nutritionist's previous experience and academic training and to prepare her to assume a leadership role in the application of nutrition in public health.

The field experience with the Nutrition Division of the Ohio Department of Health was designed to enable the student to observe and participate in applied ...


Elaidinized Lipid In Relation To Its Effect On Emulsification, Amelia Gail Brown Aug 1971

Elaidinized Lipid In Relation To Its Effect On Emulsification, Amelia Gail Brown

Masters Theses

Emulsification as affected by substitution of elaidinized lipid was investigated. Cream puffs were prepared with lipids of 0, 40, 60 and 80 percent levels of substitution of elaidinized lipid for corn oil. Viscosity of the lipids at 61oC was measured. Oil separation data were obtained from frozen, thawed and centrifuged batter. Penetrability of batters was measured. Volume by rapeseed displacement was determined for the baked products. Samples of batter, interior and crust were prepared for microscopic study by freeze-drying, staining of lipid with osmium tetroxide vapors, infiltration with paraffin and sectioning. Judges evaluated the sections on a descriptive ...


Distribution Of The Fishes Of The Hiwaaee River System-Ecological And Taxonomic Considerations, Robert Knapp Hitch Aug 1971

Distribution Of The Fishes Of The Hiwaaee River System-Ecological And Taxonomic Considerations, Robert Knapp Hitch

Masters Theses

This paper summarizes the results of seventy-two collections made by the author along Georgia and Tennessee portions of the Hiwassee River. The more interesting species are listed and possible habitat preferences shown by these species are noted.

A discussion of the distribution of fishes within the various tributaries of the Hiwassee is presented, as are possible reasons for the absence of fishes from certain tributary systems.

The problems associated with the taxonomy of the species of the Genera Cottus and Hypentelium are also examined.

The results of this research indicate some of the possible effects of the isolation of the ...


The Training And Selection Of A Panel For The Sensory Evaluation Of Beef, Constance Maria Hudgins Aug 1971

The Training And Selection Of A Panel For The Sensory Evaluation Of Beef, Constance Maria Hudgins

Masters Theses

The training and selection of persons for a panel for sensory evaluation of beef proceeded in three phases - - preliminary screening by triangle tests, training sessions with hamburger patties with known differences in composition, and training with 6-7-8th rib roasts varying in USDA grades. Various statistical criteria were used to rank panelists' performance on scoring flavor, juiciness, and tenderness of hamburger patties and roasts. These criteria were the percentage of correct responses on the triangle tests; R2 values and F ratios for flavor, tenderness, and juiciness scores and correlation coefficients for juiciness scores versus percent fat in cooked hamburger patties ...


Elaidinized Lipid In Relation To Its Effect On Batter Structure, Rebecca Jane Snodgrass Aug 1971

Elaidinized Lipid In Relation To Its Effect On Batter Structure, Rebecca Jane Snodgrass

Masters Theses

Batter aeration as affected by substitution of elaidinized lipid and related to other properties was investigated. Elaidinized lipid was substituted for hydrogenated safflower oil shortening at four levels, 0, 40, 60, and 80 percent, in the preparation of lipid samples. Lipid samples were characterized by gas-liquid and thin-layer chromatography and by melting point determination. Specific gravity and viscosity of the batters, volume index of the cakes, and lightness index of the crumb were determined. Batter structure was studied microscopically.

An increase in trans isomer concentration from 8.8 percent to 40.6 percent was accompanied by an increase in melting ...


Food Service Personnel Training And Employment Needs Of Nursing Homes In West Tennessee, Bettye Hopper Smith Aug 1971

Food Service Personnel Training And Employment Needs Of Nursing Homes In West Tennessee, Bettye Hopper Smith

Masters Theses

Training and employment needs of food service employees in selected West Tennessee nursing homes were investigated. Personnel problems, managerial qualifications, and labor turnover also were studied. Information was obtained by means of questionnaires and personal interviews. A randomized sample consisted of 14 large nursing homes (50 beds and over) and 11 small nursing homes (25 to 50 beds).

Less than half of the nursing homes surveyed were conducting or participating in training programs. Where training was taking place, the skills and knowledge considered most important for the particular group were not always the ones being taught. Managers of large nursing ...