The effects of hormonal chemicals and different genotypes on fruit growth of greenhouse-grown tomatoes (Lycopersicon esculentum Mill.) were examined. Continuous root application of 10nM N⁶-benzylaminopurine in Hoagland's nutrient solution to tomato seedlings of 'Fireball' and 'Red Cherry' significantly delayed anthesis of 'Fireball', but not 'Red Cherry'. Ovary diameter at anthesis, final fruit diameter, and fruit weight of both cultivars were unaffected. Irrespective of treatments, a significant positive correlation was obtained between ovary diameter at anthesis and final fruit diameter. A single foliar application of 0.25mM or 0.37mM β-na-phthoxyaceticacid (βNOA) at the appearance of the first in florescence of ‘Fireball' significantly increased ovary diameter at anthesis, but had no effect on final fruit diameter. Flowers on the second inflorescence of tomato plants treated with 0.37mM βNOA had smaller ovary sizes at anthesis than those of untreated plants. Application of 0.125mM βNOA, and 1µM, 10µM, and 100µM gibberellin A₃ had no significant effect on ovary diameter at anthesis or final fruit diameter. A significant positive correlation was also shown between ovary diameter at anthesis and final fruit diameter of βNOA treated plants. Among the twelve genotypes tested, significant correlations between ovary diameter at anthesis and final fruit diameter were found for 'Fireball', 'Michigan/Ohio Hybrid', and 'New Yorker'. The remaining genotypes showed no significant correlations between ovary diameter at anthesis and final fruit diameter. The average ovary diameter at anthesis (of all the genotypes) was significantly correlated with final fruit diameter, fruit weight, and locule number. / Master of Science

Wild turkey mortality rates, habitat use patterns, and recruitment were investigated on intensively managed pine forest of the Central Piedmont. Thirty-two adults and poults were captured with adult dosages of alpha-chloralose. Poults were easily sedated and usually recovered 1 day sooner than adults. The annual mortality rate for marked turkeys was 85%; September-February mortality was 65% (N=17), and March-August mortality was 57% (N=21). Turkeys that died during hunting seasons were recovered significantly (p < 0.05) closer to roads than those that died out of hunting seasons. High mortality during the hunting seasons and the association of hunting season mortality with roads suggests a crippling loss to legal harvest ratio as high as 4:1. Use of young pine plantations, hardwood leave strips, large stands of mixed hardwoods, mature pine stands, and fields was not significantly different (p > 0.1) from availability. Turkeys were associated with edges while on their winter and prenesting ranges. Nests were located in a variety of stand types, near edges, and in heavier cover than generally available. Nesting success was 48%. Post critical period brood survival was 90%. These data indicate that wild turkeys can adapt to the early stages of forest conversion for intensive pine management. / Master of Science

Although the duties of Artistic Directors of not-for-profit regional theatres in the United States are similar, the job description varies according to the management structure, mission of the theatre, and personal style of the individual holding the job. This thesis serves as a report and a subjective overview of an observership with Fred Chappell, Artistic Director of The Alliance Theatre Company/Atlanta Children's Theatre; David Head, Artistic Director of the Theatrical Outfit; and Frank Wittow, Artistic Director of The Academy Theatre. Each chapter contains: (1) a brief history and description of each theatre company; (2) the mission statement of each theatre; (3) biographical information regarding each Artistic Director; and (4) a subjective overview of the observation at each theatre. Complete transcripts of the interviews are included in Appendices A, B, and C of this thesis. / Master of Fine Arts

The history of industrial arts is rooted in the manual training movement, which began in the second half of the 19th century. Of the three school systems studied (Danville, Lynchburg and Richmond), Lynchburg was the first to offer manual training classes. Started in 1901, the classes were almost exclusively hand woodworking, and were taught at the secondary school level. In 1903, Richmond began offering manual training in its elementary schools. This program was first called industrial arts in 1921. Danville added industrial arts to its program of studies in 1929. In the fall of 1929, the Virginia State Board of Education directed that non-vocational industrial education be promoted throughout the State. In the decade that followed, industrial arts programs in Danville, Lynchburg and Richmond grew to fill this directive. This period of growth was followed by almost 40 years of stagnation. In June 1969, the State Department of Education created the Industrial Arts Education Service. Thomas Hughes was appointed to head this new division. Under his direction, the industrial arts curriculum throughout the State underwent many changes. These changes were reflected in the renewed development of industrial arts programs in the three school systems studied in this paper. Today, these programs offer a wide variety of pre-technical and personal enrichment courses. As such, they serve both the general and vocational aspects of the schools' program of studies. / Master of Science

The issues from past projects are shown to be used in subsequent projects. By continuing to investigate selected issues they become increasingly articulated. / Master of Architecture

Liquid and slurry jets were injected through a circular orifice transverse to a M = 3.0 airflow. Mass samples of both jets were taken across the plume 30 injector diameters downstream. Pitot and static pressure surveys were taken across the liquid jet. These data allowed the calculation of distributions across the liquid jet plume of Mach number, air mass flow, liquid-to-air ratio, and momentum flux. A correlation for the liquid concentration in the downstream plane is also presented. In the plume, there is a core region of subsonic airflow carrying two-thirds of the mass collected in the plume. In the core, the liquid mass flow is nearly constant from side-to-side at a given height, and the average velocity of the liquid is only 30 to 60% of the local air velocity. A supersonic mixing region covering two-thirds of the area of the plume surrounds the core region. Comparison with the results from this direct sampling data indicate that correlations developed from photographic techniques are inadequate in determining the jet penetration and width of liquid and slurry jets. The slurry jet showed substantial phase separation. A 30% mass-loaded slurry of 1-5 µm silicon dioxide particles mixed with water was injected, and the local loading varied from a low of 13% at the bottom of the plume to 100% outside the liquid plume. The local loading increased as the jet boundary was approached from any direction. / Master of Science

Pretreatment of Pittsburg seam B coals to decrease its ash content and increase its solvent extractable material was investigated by anodically electrolysing acidified coal-water slurries at potentials around 1.0V SCE. The effects of the pretreatment were examined as functions of coal particle size, acid strength of the slurry, time of electrolysis and applied potential. The coal electrolysis was found to be most efficient at low acid strengths and short electrolysis times. The morphology of the coal surface changed with the conditions of the electrolysis and related to the percentage ash removal and the amount of solvent extractable material present in the coal. The anodic oxidation of the coal is suspected to occur via an electrocatalytic(EC) mechanism, whereby ferrous ions in the coal are first oxidised at the anode to the ferric state. The ferric ions migrate into the coal and accept electrons from accessible bonds in the coal micelle thereby reducing themselves back to ferrous ions and return to the anode for re-oxidation to the ferric state. The acceptance of electrons from certain bonds in the coal micelle results in the break-up of the micelle in to simpler compounds. Accordingly, the solubility of the coal in an organic solvent should increase and this was found to be so when ferrous ions were externally added to the electrolyte. The electrolytic process was also found to transfer metallic ions present in the coal into solution in the electrolyte. / Master of Science

Statistical models with dichotomous response are investigated. Many techniques for modeling such situations are discussed which involve various types of distributions. The two distributions which shall be discussed further are those related to probit and logit analysis. Several estimation methods are developed for determining the parameters in the two distributions mentioned. Examples are given for each of these estimation methods. And finally, the estimation methods are compared. / Master of Science

A stable biofilm of Penicillium chrysogenum in a slab geometry was characterized with respect to penicillin production at various sugar and oxygen concentrations by studies using a novel bench scale bioreactor. The biofilm was submerged in aerated liquid media, mounted vertically in a tube and oriented so that the liquid media and sparged gas bubbles flow uniformly over the two slab faces. The conditions necessary for definite oxygen and sugar limitations were found by operating under various bulk nutrient concentrations. The periodic determination of total biofilm volume (rate of growth) and dry cell weight provided additional information. Definite oxygen mass transfer limitations were found to exist in the biofilm. These limitations could be overcome by increasing the oxygen supply rate to the biofilm. / Master of Science

Trisetum spicatum (Poaceae) is circumboreal as well as bipolar in distribution. The species is comprised of both tetraploid and hexaploid cytotypes that display high morphological diversity. Previous taxonomic treatments have resulted in the separation of the species into a series of species, subspecies, varieties, races, and types. Many of these treatments were inconclusive, based on highly variable characters, and few specimens were examined. For instance, the characters of the inflorescence and relative stem pubescence are the characters most relied on for subspecific separation. These characters have been found to be extremely inconsistent, even within the same population. This study is concerned with the North American component of the species complex. Three-hundred and fifty herbarium specimens and field collections were measured for thirty-three characters. These data were analyzed numerically with basic statistics, cluster analysis, principal coordinate, and discriminant function techniques. The results indicate that extreme variation exists within the species complex with no distinct subgroups. The species was also analyzed genetically with isozyme electrophoresis. Eight populations were surveyed for five enzyme systems. These results indicate the species to possess complete allelic homogeneity within populations with few interpopulation differences. Previous recognition of the hexaploid as a distinct species is not supported morphologically or genetically. / Master of Science