Life Sciences Commons^™

Job Characteristics As Related To Job Satisfaction Of University Foodservice Employees, Kelly M. Duke

Masters Theses

The purpose of this study was to determine the relationship between job characteristics and job satisfaction of university foodservice employees. The relationship of demographic variables to job satisfaction was also explored. A three-part survey was developed including the 30-item Job Characteristics Inventory, six items related to job satisfaction and seven demographic items. Separate written questionnaires were administered to 32 supervisory and 147 non-supervisory employees of a large state university foodservice department. The response rate was 98 percent (n=32 supervisory; n=142 non-supervisory).

The reliability of the instruments using Cronbach's alpha was .88 for employees and .91 for supervisors. Multiple regression analyses …

Intracellular Protein Degradation In A Mesophile And A Thermophile Of The Genus Bacillus, Cameron C. Hoover

Masters Theses

¹⁴C-leucine was incorporated into th e proteins of the mesophile Bacillus licheniformis and the thermophile Bacillus stearothermophilus. Aliquots of the cell suspension were treated with chloramine-T in order to decarboxylate the ¹⁴C-leucine that was released as the proteins degraded. The ¹⁴CO₂ was trapped and counted. This allowed for the determination of the extent of intracellular protein degradation at various tem peratures and at various stages of the growth cun/e. For the mesophile, the extent of degradation increased with temperature from 30° C to 55° C. For the thermophile, no significant amount of degradation occurred until …

River Otter Reintroduction In Great Smoky Mountains National Park, Jane M. Griess

Masters Theses

Between 26 February and 31 March, 1986, 11 river otter (Lutra canadensis) were obtained from North Carolina, implanted with radio transmitters, and released on Abrams Creek in Great Smoky Mountains National Park. A total of 635 radio locations were obtained on eight otters.

Male home ranges averaged 14.1 km during the study (March - December) while female home ranges averaged 15.9 km. There were no significant differences in home range length (p > 0.05) between sexes.

A total of 75 scats (42 samples) were collected during the study. Food items were calculated on frequency of occurrence. Crayfish occurred in …

The Effects Of Oil Well Sites On Forest Species Of Birds, Wendy J. Baker

Masters Theses

Fifty censuses were taken in 9 transects adjacent to 8 oil well openings. It was found that 2 species, the red-eyed vireo (Vireo olivaceus), and the ovenbird (Seiurus aurocapilus) were significantly affected in spatial distribution. These forest species had significantly lower numbers near the oil well site than in the forest. Two other forest species suggested the same pattern. The effect of the oil well site reaches well into the forest.

Other possible effects of the oil well sites are competition with edge species and brood parasitism by the brown-headed cowbird. Noisier sites may also affect the bird community within …

Effects Of Rainbow Trout Removal On Trout Populations And Food Habits In Great Smoky Mountains National Park, James W. Habera

Masters Theses

The range of the brook trout (Salvelinus fontinalis) in the Great Smoky Mountains National Park has continued to recede since the 1930's in the face of expanding rainbow trout (Salmo gairdneri) and, more recently, brown trout (Salmo trutta) populations. Exotic salmonid populations have been controlled with relatively intense electrofishing efforts in streams having barriers to prevent reinvasion by these fish.

Two years of moderately intense exotic salmonid removal efforts were evaluated for a group of nine Park streams, eight of which had no effective downstream barrier. Food habits of adult sympatric book and rainbow trout collected from three of the …

Reaction Of 2,2,6-Trimethyl-1,3-Dioxin-4-One With Isocyanate Derivatives And The Synthesis Of 2,3,4,6-Tetra-O-Acetyl-Dglucopyranosyl Phenyl Carbodiimide, Tung Van Le

Masters Theses

This research was undertaken to study the synthesis and reactions of isocyanates with diketenes, the synthesis of glycosyl carbodiimide.

The 1,3-oxazine-2,4-dione compounds could be useful in the medicinal chemistry field and the agricultural field, the research using glycosyl carbodiimide as a synthon shows great promise for the medicinal chemistry field.

Longevity And Fecundity Of Edovum Puttleri Grissell, With Notes On Its Effectiveness As A Biocontrol Agent In Tennessee, Nader M. Elkassabany

Masters Theses

In the laboratory, fecundity and longevity of Edovum puttleri Grissell (Hymenoptera: Eulophidae) were determined. Longevity was tested at two temperatures and with three different diets. The tested groups were mated females, virgin females, and males. Mean longevity was 17.9 ± 2.2 days, and parasite survival rate was highest under a combination of 24±1^oC and 50% water: 50% honey diet. Mean fecundity for each female was 1.9±0.2 eggs/24 hr and 40.8±4.8 eggs in 21 days. In the summer of 1986, field releases were made in Knoxville and Crossville to determine the effectiveness of the parasite as a biocontrol agent. …

Medicinal Herbs Of Central Illinois, James E. Hefley

Masters Theses

A survey of the medicinal plants of central Illinois was conducted from fall of 1985 to the summer of 1987. This study concentrated on those herbaceous plants which have a scientific basis for their medicinal value. The study range included the following counties: Coles, Moultrie, Shelby, Fayette, Christian, and Montgomery.

In this paper, 58 species were considered, representing 33 families. A description of external morphology is included for each specimen, as well as folknames and habitat preferences. In addition, the medicinal qualities and active constituents are included for each specimen, as well as comments about their scientific and folknames.

In …

Diet And Activity Patterns Of The Common Snapping Turtle, Chelydraserpentina, (Lineaus), At Chain O' Lakes State Park, Lake County, Illinois, Jennifer Budhabhatti

Masters Theses

No abstract provided.

Seasonal And Daily Activity In A Population Of Blanding's Turtle (Emydoidea Blandingi) In Northern Illinois, John W. Rowe

Masters Theses

No abstract provided.

Antibiotic Effects On Coliform Enumeration, Keith Leonard Wozniak

Masters Theses

The inhibitory effects of Bacillus polymyxa on Escherichia coli were studied. Significant coliform inhibition was observed. The inhibitory agent (presumably polymyxin) was active against coliforms after a one hour holding time. Different suspending menstrua were analyzed for their effects on coliform inhibition. It was observed that Peptone water provided the highest recovery of coliforms while phosphate buffer provided less protection. Two methods of enumeration were also studied as to their ability to quantify coliforms inhibited by B. polymyxa. Comparable inhibition was shown using both methods. No significant differences exist between the Standard Plate Count and Membrane Filter techniques. Overall, …

The Effects Of Xanthine And Adenosine Analogs On Rat Pup Diaphragmatic Contractility, Liam C. Farrell

Masters Theses

Methylxanthines are commonly used in the treatment of respiratory disorders such as asthma, apnea of prematurity and Cheyne-Stokes respiration. Recently, certain methylxanthines have been found to potentiate the contraction of the diaphragm and increase contraction strength of the fatigued diaphragm. The mechanism of action of the methylxanthines is unknown. Three theories have been proposed but each has its supportive and negative points. One theory is that methylxanthines inhibit cyclic AMP phosphodiesterase (PDE) which facilitates contraction by increasing cyclic AMP levels in the cell. Another theory is that methylxanthines antagonize adenosine, thus blocking the adenosine-induced inhibition of contraction. The third theory …

The Effects Of Xanthine Analogs On Neonatal Rat And Adult Mouse Respiration, Susan M. Reynolds

Masters Theses

Apnea, a prolonged cessation of breathing, is commonly seen in premature infants. This condition, in its severest form, can be lethal and is a suspected cause of sudden infant death syndrome (SIDS). Sometimes referred to as apnea of prematurity, recurrent apnea is presently being treated with respiratory stimulants known as methylxanthines (MX) such as theophylline and caffeine. The benefits of MXs are accompanied by central nervous system stimulation and cardiostimulation which may be detrimental to a premature infant. Theophylline (1,3-diMX) has been shown to produce some of its effects by antagonizing endogenous adenosine. Another xanthine, enprofylline (3-propylxanthine), is presently being …

Some Potential Evolutionary Costs Associated With Paternal Care In The Water Bug Belostoma Flumineum Say, Larry Johnson

Masters Theses

Female water bugs (Belostoma flumineum) deposit eggs in a mucilaginous cement on the back of conspecific males, who then brood these eggs until hatching. Sex role reversal, in which females compete for males and males are discriminating, is predicted in this species because males provide parental care exclusively, and represent a limited resource. Presumably the advantage of this paternal behavior is increased survival of young. However, the potential exists for this egg-brooding behavior to incur evolutionary costs, and quantifying some of these costs was the thrust of this study.

One cost, a loss of polygynous opportunity, was investigated …

Cyanogenic Plants Of Illinois, Kevin E. Aikman

Masters Theses

Cyanogenesis in 50 species of vascular plants collected from east central Illinois was studied by examining 10 populations of each species. Each population consisted of 30 individuals, which gave an over all sample size of 300 plants per species. Herbarium specimens from the Stover Herbarium of Eastern Illinois University (EIU) were also tested for the presence of cyanide. More than 20,000 specimens were tested for this study which included cultivated plants, introduced weeds, and native plant species. The speed and degree of the HCN reaction as well as the specific plant part tested were included to give a more specific …

A Taxonomic Re-Evaluation Of Specimens Of The Genus Caloplaca In The E.L. Stover Herbarium Of Eastern Illinois University, Eric J. Cameron

Masters Theses

The genus Caloplaca is the largest genus in the family Teloschistaceae. The 103 species in the genus greatly outnumber any other in the family. Lichens of the genus Caloplaca are usually orange to orange-yellow in color, and range from crustose to subfoliose in form. The orange color is due to an anthraquinone, parietin, the location of which is taxonomically important in this genus of lichens. In some species it occurs only in the apothecia, while in others it is found in both the apothecia and thallus. The spores of this genus are polarilocular, and the width of the isthmus is …

The Effects Of Frozen Storage And Repeated Freeze-Thawing On Salmonella In Varied Concentrations Of Waste Activated Sludge, Joseph Toman Jr.

Masters Theses

Commonly, waste activated sludge is applied to farmland as a fertilizer supplement and soil conditioner. The use of waste activated sludge is not only an efficient way of sludge disposal, but also an economical one. Much concern has been raised about the safety of such a practice. Harmful pathogens, like Salmonella, are commonly present in waste material. Treatment at wastewater plants is successful in eliminating these organisms from final effluent, but the solids generated are full of indigenous microorganisms, including Salmonella.

Work of this paper attempts to determine the safety of the sludge product after simulated winter conditions …

A Woody Understory Survey Of Baber Woods, Edgar County, Illinois, Jacqueline M. Spencer

Masters Theses

The understory of Baber Woods, located in Edgar County, Illinois, was surveyed to see if sugar maple had increased enough in importance to consider implementing some type of forest management technique. Five 100 meter transects were randomly located in closed canopy areas throughout the woods. Specimens were removed from continuous 1 meter quadrats located along each line. Specimens were also removed from twenty 25 meter transects located in the open canopy areas. Species, age, height, diameter, and quadrat number were recorded for each specimen. The data was analyzed for age-height and age-diameter relationships, plus individuals per hectare, density, frequency, relative …