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Evergreen Tree Species For Urban Use In Eastern Tennessee, Vivian Orr Potter

Masters Theses

The objective of this study was to determine which of five tree species was best suited for urban conditions in eastern Tennessee with respect to certain criteria. The species included eastern white pine (Pinus strobus L.), eastern hemlock [Tsuga canadensis (L.) Carr.], Norway spruce [Picea abies (L.) Karst.], southern magnolia (Magnolia grandiflora L.), and eastern red-cedar (Juniperus virginiana L.). The criteria used for comparing the species were resistance to disease, resistance to insect pests, range of soil fertility adaptability, range of soil pH adaptability, and aesthetic appeal.

Questionnaires were sent to nurserymen …

Selected Characteristics Of High And Low Performance Rated Extension Agents Responsible For The Tennessee Agricultural Extension Special Program In Food For Youth, Beverly Daniels Kosoko

Masters Theses

The purposes of this study were to characterize High and Low performance rated Agents, to determine the relationship between performance rating level, attitude toward the assignment and other attributes of SPIFFY Agents in Tennessee. It was also proposed to identify selected aspects of the SPIFFY programs conducted by High and Low rated Agents.

The population of this study included all 37 SPIFFY Agents in the State of Tennessee. The data were collected by means of a mail questionnaire. A secondary source of data consisted in personnel records.

Results of the study indicated that level of performance was consequentially related to …

Partial Purification And Characterization Of Pectin Methyl Esterase In Southern Peas (Vigna Sinesis), Kun Kook Park

Masters Theses

The purposes of this study were to partially purify pectin methyl esterase (PME) of Southern peas (Vigna sinensis), to determine optimum pH and NaC1 concentration for maximum enzyme activity, to measure the energy of activation and kinetic reactions, and to ascertain the presence of multiple molecular forms of the enzyme and their isoelectric points.

PME was extracted from an acetone powder preparation and purified by a two-step ammonium sulfate fractionation and dialysis. The activity of the partially purified enzyme was significantly (p < 0.05) influenced by pH, NaC1 concentration, and the interaction between pH and NaC1 concentration. The optimum pH and NaC1 concentration were 7.9 and 0.25 M, respectively. The energies of activation were calculated to be 4,900, 5,950, and 6,900 calories/mole at pH 6.0, 7.0, and 7.0, respectively. PME had a K_m of 0.781% pectin N.F. and a V_max of 24.34 PME units.

Additional purification was …

Effects Of Ethephon On The Pattern Of Flowering And Fruit Set Of Summer Squash, Carl Earnest Sams

Masters Theses

The plant growth regulator 2-chloroethylphosphonic acid (ethephon) was applied to summer squash to determine its effects on the flowering pattern. Treatments with all pistillate flowers pruned at anthesis, with and without ethephon applications were also compared to control plants to investigate the factors regulating flowering and fruit set of summer squash.

It was found that plants in the pruned treatments had a greater carbohydrate accumulation than plants in the nonpruned treatments, indicating that carbohydrate accumulation may be inversely associated with fruit development. Ethephon treatments produced more pistillate flowers per plant but also had a large number of aborted flowers. Thus, …

Influence Of Dietary Calcium To Phosphorus Ratio On Bone Density Of Vegetarian And Non-Vegetarian Older Women, Teresa Ann Davis

Masters Theses

The purposes of this study were: to investigate the influence of dietary calcium, dietary phosphorus, and their ratios as observed in vegetarian and non-vegetarian subjects on their bone densities and to compare bone density, the dietary intakes of calcium and of phosphorus, and the ratio of calcium to phosphorus in vegetarian and non-vegetarian subjects.

After obtaining informed consent, data were collected on 43 vegetarian and 36 non-vegetarian women, 40 to 92 years old, who consumed self-selected diets. Dietary information was obtained from 7-day dietary records. Dietary supplements were also recorded. Measurements of height, weight, and bone density of the radius, …

Comparison Of Methods Of Selection To Increase Yearling Weight Of Beef Cattle And Assessment Of Influence Of Sire Differences On Estimates Of Repeatability Of Cow Productivity, Thomas Bruce Turner

Doctoral Dissertations

The objectives of this study were: (1) to make a theoretical comparison of progress expected by selecting for a single trait with progress expected by selection based on an index including two traits and (2) to compare estimates of repeatability of cow productivity when the effect of sire is removed from the data and when it is not.

Data were collected over a period of seven years from 581 bull calves and 552 heifer calves from the purebred Angus herd at The University of Tennessee Plateau Experiment Station, Crossville.

Variables recorded at weaning (approximately seven and one-half months of age) …

The Concentrations Of Ten Heavy Metals In Some Selected Lake Powell Game Fishes, Robert E. Bussey

Biology ETDs

Ten tissues from each of four species of fish-large­mouth bass (Micropterus salmoides), black crappie (Pomoxis nigromaculatus), walleye (Stizostedion vitreum) and rainbow trout (Salmo gairdneri) from Lake Powell were analyzed and compared for the concentrations of ten heavy metals: Fe, Ca, Mg, Cu, Cr, Cd, Zn, As, Se, and Pb.

Samples were digested with nitric and perchloric acids, and analyses were performed by atomic absorption spectro­photometry. Concentrations were expressed on a dry weight basis for all tissues, and were not corrected for percent recovery.

As expected, high levels of iron were observed in the blood tissues, with low concentrations being observed …

Macroinvertebrates And Diatoms On Submerged Bottom Substrates, Lake Powell, Ellen T. Louderbough

Biology ETDs

To collect and examine the organisms associated with newly inundated terrestrial vegetation in Lake Powell, small plastic Christmas trees were "planted" along a sloping sandy bottom at depths of 2, 3, 4.5, 6, 8, and 10 meters. For the 17 months from July, 1973, through October, 1974, the trees were harvested and replanted by scuba divers at 4- and 12-week intervals. The macroinvertebrate and diatom components of the periphytic community associated with each tree were collected and evaluated for number of individuals per unit area (density) and species composition. A diversity index was computed for the diatom portion of each …

Allografts And Xenografts Of Thyroid Gland Tissue And Cultured Thyroid Gland Cells Into Thyroidectomized Rats, Jerry Martin Katz

Biology ETDs

The most desirable way of treating endocrine deficiencies would be by the successful transplantation of functional endocrine tissue into the deficient animal. However, unless the donor and recipient are identical twins or from an inbred strain of animals, an immune response is usually elicited in the recipient by the foreign tissues leading to rejection of the transplant. Thyroid gland cells which have been enzymatically dispersed from thyroid tissue and cultured in vitro are capable of reforming functional thyroid tissue when implanted into animals of the same strain. The purpose of this work was to test the ability of cultured thyroid …

Bionomics Of Two Aspen Bark Beetles : Trypophloeus Populi And Procryphalus Mucronatus (Coleoptera:Scolytidae), Jerold L. Petty

Theses and Dissertations

Beetles of Trypophloeus populi attacked green bark of unhealthy aspen (Populus tremuloides) and hastened the death of the tree. Beetles of Procryphalus mucronatus favored dead bark and were of little significance in the death of the aspen. These two beetle species were distinguished from each other by their primary galleries, eggs, larvae, larval mines, and mating behavior. In T. populi, there were three larval instars and one to one and one-half generations per year; only larvae overwintered, and the eggs of the first generation were present by mid-July. In P. mucronatus, there were two larval instars and one and one-half …

Cardiorespiratory Function During Two Methods Of Lung Lavage And During Unilateral Hypoxia, Steven Allen Silbaugh

Biology ETDs

Therapeutic lung lavage is a procedure by which the interior of the lung of a living animal is “washed” with a suitable solution. Broncho­pulmonary lavage, a special type of lung lavage in which the bronchioles and alveoli are washed, is the major concern of this thesis. Broncho­pulmonary lavage was investigated in 1920 as a possible treatment for lungs damaged by irritant gases and in the late 1950‘s as a method of hemodialysis. Currently, it is effectively used for the treatment of patients with obstructive lung disease and for the removal of radioactive materials from the mammalian lung. Bronchopulmonary lavage interferes …

Endoparasites Of Cats In Two Central Utah Communities, Thomas W. Sawyer

Theses and Dissertations

A survey of the endoparasites of 100 stray cats in central Utah was conducted. Each cat was euthanized, and the entire alimentary tract, gall bladder, bile duct, heart, respiratory and excretory systems were excised and examined for endoparasites. Fecal samples were examined by a sugar flotation technique. Parasites identified and number of cats infected were: Isospora felis 5; I. rivolta, 4; Dipylidium caninum, 1; Hydatigera taeniaformis, 10; Toxocara mystax, 43; and Physaloptera sp., 2. One ectoparasite, Cheyletiella parasitivorax, was identified in the feces of 4 cats. Dipylidium caninum and T. mystax are known to cause accidental infection in humans and …

The Relationship Between Body Fat And Physical Well-Being Of Children, Aged Six To Thirteen, As Determined By Physical Activity And Physical Fitness, Paul Sieczkowski

Student Work

Body fat has several implications for an individual's physical well-being. Aside from its functional aspects as an energy reserve and as a thermal insulator, excess body fat has been related to an increased mortality rate (Dublin, 1930). Vitale (1973) and deVries (1974) emphasized that excess fat is associated with many degenerative diseases such as diabetes, gallstones, high blood pressure, and heart disease. Mayer (1953) noted that there might be seasonal changes in the body fat level due to changes in activity level. Johnson, Burke,, and Mayer (1956) traced the onset of obesity of most "late obesity" children to the winter …

The Effect Of Two Athletic Training Programs On Aerobic Capacity, Anaerobic Capacity, Reaction Time, And Percent Body Fat, Paul W. Petersen

Student Work

It is perhaps obvious that athletic teams, such as basketball and wrestling, use different conditioning pro­grams during the regular season of competition because of the nature of their sports. Although many coaches initiate particular programs and use them year after year, rarely do they have any definite measurements concerning the effects of the program on their athletes other than a win-loss record. To better understand the conditioning that takes place in various sports, in this study, several parameters of fitness were calculated-using the basketball and wrestling teams at the University of Nebraska at Omaha. The measurements will indicate the change …

The Isolation And Identification Of Yeast-Like Fungi In Non-Active Tuberculosis Patients In Rowan County, Kentucky, Connie Harris Baker

Morehead State Theses and Dissertations

A thesis submitted to Morehead State University in partial fulfillment of the requirements for the degree of Master of Science in Biology by Connie Harris Baker in July of 1976.

An Intensive Study Of The Spring Phytoplankton Bloom In Lynnhaven Bay, Virginia, Donald Lynn Webster

Biological Sciences Theses & Dissertations

Phytoplankton samples were collected biweekly from two stations, one in each branch of Lynnhaven Bay, Virginia over the period January 24 to June 9, 1975. Water temperature, salinity, pH, oxygen, ammonia, urea, reactive nitrite, reactive nitrate, reactive phosphorus, productivity, transparency, and weather conditions were recorded concurrently. Data were manipulated employing analysis of variance, simple correlation, correlation matrices, and forward stepwise multiple regression. Total phytoplankton numbers exhibited a unimodal pattern. A pre-bloom pulse was recorded at both stations in late February. The spring bloom lasted from April through May. Phytoplankton growth was primarily a function of nutrient supply and temperature. Nutrient …

Sex Pheromone Activity In The Foveal Glands In The Two Species Of Ixodid Ticks: Dermacentor Andersoni (Stiles) And Dermacentor Variabilis (Say), Lynn Anne Collins

Biological Sciences Theses & Dissertations

Sex pheromone activity in the foveal glands of female Dermacentor andersoni (Stiles) and Dermacentor variabilis (Say) is described. Autoradiography revealed the accumulation of ³⁶Cl in the foveal glands of females during their first 120 hours of feeding on a ³⁶Cl-labeled host. Emissions collected from these females contained a ³⁶Cl-labeled product. This product, however, was absent in emissions collected from the same females with their foveae dorsales obstructed.

Accumulation of ³⁶Cl in the foveal gland, in conjunction with the release of a ³⁶Cl-labeled product through the foveae dorsales, suggest localization of sex pheromone activity within these …

Kinetic And Binding Studies On L-∝-Glycerophosphate Dehydrogenase, Paul Richard Rosevear

Chemistry & Biochemistry Theses & Dissertations

The properties of the coenzyme, NAD, binding site of chicken muscle L-∝-glycerophosphate dehydrogenase were studied. Adenosine monophosphate, adenosine diphosphate and adenosine diphosphoribose were sha.vn to inhibit the enzyme competitively with respect to NAD. The presence of adenosine, pyrophosphate and ribose regions in the coenzyme binding site of the enzyme was suggested by the inhibitor constants obtained for these compounds.

Disodium monoalkyl phosphates, n-butyl to n-dodecyl phosphate, inclusive, were also shown to inhibit the L-∝-glycerophosphate dehydrogenase catalized reaction competitively with respect to NAD. A positive chain length effect was observed in the binding of these compounds to the enzyme, suggesting the …

Studies Of The Purification Of Nad-Dependent And Nadp-Dependent Isocitrate Dehydrogenase By General Ligand Affinity Chromatography, Geoffrey H. Bertkau

Chemistry & Biochemistry Theses & Dissertations

Purification of Yeast NAD⁺-dependent isocitrate dehydrogenase was partially successful when utilizing an NAD⁺-ribosyl-hydrazide Sepharose affinity chromatography column. Although no specific elution system was found, a maximum purification of sixty-five fold was achieved with 0.5M KCl elution. A 38-fold purification was obtained when 20mM NAD⁺ was employed for elution.

Yeast and calf liver NADP⁺-dependent isocitrate dehydrogenase were also found to bind to NAD⁺-ribosyl-hydrazide Sepharose as well as the NAD⁺-dependent enzyme. Again, elution was achieved with either o,5M KCl or 20 mM NADP⁺.

Ammonium sulfate fractionation decreased the yield …

Structural Comparisons Of Four Plant Communities In The Great Dismal Swamp, Claire Virginia Dabel

Biological Sciences Theses & Dissertations

Four plant communities in the Great Dismal Swamp, located on the coastal plain in southeastern Virginia, were sampled and estimates of density, basal area and aboveground standing crop biomass were determined, Biomass was estimated as 229,800 kg/ha in the Chamaecyparis thyoides community and as 344,500 kg/ha in the Taxodium distichum community. Biomass for the two hardwood communities, the

Acer-Nyssa community and mixed hardwood (Quercus-Nyssa-Acer-Liriodendron-Liquidamber) community was estimated as 195,700 kg/ha and 194,600 kg/ha respectively and did not differ significantly (P

An Investigation Of The Nucleotide Cyclic 3'5' Adenosine Monophosphate In Young Hypocotyls Of Pisum Sativum L., Gary Marsh Hilton

Biological Sciences Theses & Dissertations

Concentrations of cAMP increased with time in pea hypocotyls assayed at 24 hour intervals over a period of four days. The highest concentration was 20.1 pmoles/mg protein which occurred in 96 hour hypocotyl tips. Ninety-six hour root bodies (dissected region between tip and embryo) achieved a concentration of 8.6 pmoles/mg. Concentrations of cAMP in embryos remained constant around one pmole/mg for three days and values doubled on the fourth day.

Hypocotyls, after germination for 72 hours, were dissected and incubated for various lengths of time in water and 3xl0^-8M IAA. Tips incubated for two hours showed a tenfold …

Comparison Of Urea Formaldehyde, Melamine Formaldehyde, Glyoxal And Latex In Improving The Water Resistance Of The Starch Coatings, Tran Trong Kim

Paper Engineering Senior Theses

Several coatings colors were prepared and applied. The coated sheets were tested with great emphasis on keeping the conditions constant throughout the course of the experimental work. The study utilized several types of insolubilizers: urea formaldehyde, melamine formaldehyde, glyoxal and latex. Two types of starches were also used: regular and cationic.

Results showed the importance of drying on wet rub development of both urea and malamine formaldehyde as compared to latex and glyoxal. Results also proved the superiority of using insolubilizer additions with cationic starch rather than regular starch.

Glyoxal and latex were superior choices to urea and malamine formaldehyde, …

Immunological Responses In The Prairie Rattlesnake Crotalus Viridis Viridis Rafinesque 1818, To Laboratory Infection With Tetrathyridia Of Mesocestoides Corti Hoeppli 1925 (Eucestoda : Mesocestoididea), Gray Bruce Hanson

Loma Linda University Electronic Theses, Dissertations & Projects

Prairie rattlesnakes, of the species Crotalus viridis virldis, were orally, infected with tetrathyridia of Mesocestoides corti to determine the host response to the parasite. Snakes were maintained at constant temperatures of 25, 30, and 35 C for 4--24 weeks. Blood chemistry evaluations of the host were made by standard hematological methods. Eosinophil counts, total proteins, and serum gamma globulins increased while packed-cell volumes and hemoglobins decreased. Autopsy studies revealed the first documented asexual multiplication of Mesocestoides corti in a laboratory infected ectothemic host, with the small intestine being the preferred organ. Pseudocyst formation was first observed to occur at 4 …

The Analysis Of A Substrate Preference Of Peromyscus (Rodentia: Cricetidae), Bruce E. Buttler

Loma Linda University Electronic Theses, Dissertations & Projects

The preference for a rocky situation was analyzed under laboratory conditions. In three-compartmented choice boxes, Peromyscus californicus and P. eremicus chose a compartment with rocks and a sandy floor over a compartment with just a sandy floor but P. maniculatus did not show a preference. In a similar experiment, in continual total darkness, the three species chose the compartment with the rocks. UM-key did not prefer the compartment with rocks when the rocks were encased in plastic and were under a normal light regime. When allowed a choice between an empty dark compartment and an empty lighted compartment exposed to …

A Population Study Of The Burrowing Owl Near Tampa, Florida, William D. Courser

USF Tampa Graduate Theses and Dissertations

No abstract provided.

Effects Of Temperature On Calcium Uptake In Bossiella Orbigniana Orbigniana, Carolyn M. Thomas

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of temperature on calcification in Bossiena orbigniana orbigniana (Decaisne, 1842) [Manza, 1940; Silva, 1957] (Corallinaceae) was studied using calcium-45 labeling of terminal segments under laboratory conditions. B. orbigniana has optimum calcium uptake for the temperatures 17-21°C within a temperature range of 3-37°C. These results suggest that optimum calcification in B. orbigniana should take place from late spring to early autumn. Q₁₀ values for 3-21°C averaged 3.39 indicating an enzyme-governed reaction. It is proposed that thallus growth rate and calcification are not directly related. It is believed that the optimum temperatures (17-21°C) affect the enzymes towards an increase …

Annotated Checklist Of The Vascular Plants Of Washington County, Utah, Susan Elizabeth Meyer

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis is comprised of two parts, the annotated checklist of plants and the explanatory text which precedes it.

The checklist includes entries for the 1,207 vascular plant species known to occur in Washington county. each entry consists of species name, floristic component classification, community type occurrence, range termination information, specimen citations, and in some cases notes and relevant synonymy.

The explanatory text includes a discussion of the methods used in the preparation of the checklist, a description of the study area, a conspectus of botanical research in the area, and a summary of the systematic and phytogeographic affiliations of …

Concurrent Infection Of Trypanosoma Musculi Kendell, 1906, And Schistosoma Mansoni Sambon, 1907 In Mice, Berhane Andeberhan

Loma Linda University Electronic Theses, Dissertations & Projects

The possible effects of ablastin on Schistosoma mansoni were investigated by (1) establishing a concurrent infection of Trypanosoma musculi and Schistosoma mansoni in mice, and (2) by obtaining Trypanosoma lewisi immune rat serum (ablastin) and injecting it into S. mansoni infected mice. These procedures were followed on days 4, 14 and 28 of S. mansoni infection. For the groups that were given immune rat serum, controls were kept into which normal rat serum was injected.

Ablastin does not have any effect on the development or morphology of the S. mansoni worms as tested in this study. Although ablastin inhibits glycolytic …

Comparison Of Two Techniques For Enumeration Of Human B And T Lymphocytes, William F. Forsythe Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

The assay of Bursa-derived and Thymus-derived lymphocytes (B and T cells) in man has become increasingly useful during the past few years in normal and in clinical conditions. There has been quite a range reported in the literature in the percent of B and T cells in normal subjects by different investigators.

The purpose of this study was to see if monocyte contamination was one cause of non-specific rosette formation. Twenty-one subjects were used to compare the technique involving trypsin and neuraminidase treatment of erythrocytes and the technique of glass wool removal of monocytes. A peroxidase stain was used to …

Effects Of Cariogenic And Noncariogenic Diets On The Concentration Of The Parotid Hormone Releasing Factor In Rat Hypothalami, Melva Joan Brown

Loma Linda University Electronic Theses, Dissertations & Projects

Hypothalamic and cortical extracts from various cariogenically grouped rats which had been maintained on either a Purina diet or a high sucrose diet (HSD) for three months were infused intravenously into 28 days old rats to determine if there was a titer of parotid hormone releasing factor (PRF) capable of facilitating fluid movement (FM) in the teeth. The hypothalamic and cortical extracts obtained from Purina-fed rats with 0-caries and the hypothalamic extracts from BSD-fed rats conclusively demonstrated FM stimulatory ability. Other Purina-fed groups were essentially biologically ineffective, however, extracts from HSD-fed caries groups including scores 11-40 demonstrated extremely potent FM …