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The Effect Of Periapical Inflammation On Cellular Cementum : A Scanning Electron Microscope Study, Gary S. Yonemoto

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to obtain information on the morphologic changes that occur in cellular cementum exposed to periapical inflammation.

Ten single rooted human teeth were collected. There were five specimens of normal cellular cementum and five specimens of diseased cellular cementum, which had been exposed to periapical inflammation. Each specimen was fractured longitudinally through the apical foramen, leaving the organic component intact. The cross-sectional morphology of cellular cementum was then examined using an ARM Model 1000 scanning electron microscope. Energy dispersive x-ray spectrometry was also conducted on samples representative of the two test groups.

A methodology was …

Lipoprotein Lipase Inhibitor Removal During Ultrafiltration Of Renal Failure Patients, Alisa Minear

Loma Linda University Electronic Theses, Dissertations & Projects

Plasma samples were obtained from seven hypertriglyceridemic (>150 mg/dl) chronic renal failure patients before and after regular hemodialysis. The effect of the plasma on the lipolytic activity of bovine milk lipoprotein lipase was investigated. The lipoprotein lipase activity, as measured by release of C¹⁴-labeled free fatty acid from triglyceride, was decreased 8-67% when incubated with uremic plasma as compared to the control plasma (44 mg/dl triglyceride). The inhibition noted prior to hemodialysis did not appear to be alleviated by the dialysis but subsequent treatment with an isolated ultrafiltration technique did appear to remove an inhibitory substance as …

Biology And Pathogenesis Of The Coccidium Eimeria Funduli Infecting Killifishes, Mobashir A. Solangi, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Epizootics of Eimeria funduli involved estuarine killifishes (Fundulus grandis, F. pulvereus, F. similis, and F. heteroclitus) in Mississippi, Alabama, and Virginia. All of more than 500 specimens examined of F. grandis from Mississippi during 1977 through 1979 had infections, regardless of age, sex, or season collected. Oocysts occurred primarily in the liver and pancreas, replacing up to 85% of both those organs. Infrequent sites of infection were fatty tissue of the body cavity, ovary, intestine, and caudal peduncle. Living fish did not discharge oocysts. Eimeria funduli is the first known eimerian to require a second host. To …

Agricultural Experiment Station News May 1980

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
GRANTS AND CONTRACTS
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – April 1980

Animal Science Newsletter, Spring 1980

Department of Animal Science: Departmental News

Contents:

Greetings from Your Animal Science Department
Animal Science Reunion
Animal Science Alumnus Receives Honorary Degree
Staff Members Receive Livestock Service Awards
Animal Science Professor Receives Distinguished Teaching Award
Block and Bridle Honoree is J. Gerald Beattie
Animal Science Professor Receives Distinguished Teaching Award
Animal Science Graduates Come from Many States and Countries
Gamma Sigma Delta Award to Sullivan
National Extension Award to Fritschen
Meet the New Animal Science Department Staff Members
1979 Livestock, Dairy and Meats Judging Teams

Effects Of Ddt Upon The Hematology And Immunology Of The Goldfish (Carassius Auratus), Maurice G. Zeeman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

DDT can cause hematological and immunological alterations in mammals and birds. Interference with normal hematological and immunological defense systems has been strongly linked to increased incidences of disease and tumors. Fish exposed to pesticides have been noted to be more susceptible to disease. This study examined DDT effects on goldfish hematological and immunological parameters.

Adult goldfish were kept in 250 liter aquaria at 25 ± 1° C. Fish were dosed intraperitoneally with p,p'-DDT in corn oil. Doses ranged from 0 to 500 mg/kg for acute (96 hour) hematology studies to 0 to 50 mg/kg for sub-acute hematology and immunology studies. …

Common Use Grazing Studies On Southern Utah Summer Range, Al F. Schlundt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two common use grazing trials were conducted during two summer grazing seasons (1978-1979) on a typical shrubby grassland site on the Kolab Terrace, about 20 miles (32 km) southeast of Cedar City, Utah, at an elevation of about 8500 feet (2600 m). Two animal units of ewes with lambs, or cows with calves, or both were stocked in each of six, one-acre (0.39 ha) pastures. A five to one substitution ratio provided two single-species and one mixed (five ewes with lambs and one cow with calf) livestock treatments replicated twice. The pastures were grazed for nine days during which time …

Evaluation Of A Wescor Dew Point Microvoltmeter Model Hr 33t For Measuring Water Activity In Foods, Ranga N. Kidambi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Wescor Dew Point Microvoltmeter, Model HR 33T, together with a Wescor C-52 sample chamber, was used to measure water activities between a_w 1.0 and a_w 0.60. Because of temperature gradient problems, the sample chamber was mounted in a styrofoam insulation box constructed so that the chamber could be opened and the sample replaced while it remained inside the closed insulation box. The standard psychrometric procedure was used for samples with a_w between 1 and 0.94. A modified procedure was used for samples dryer than a_w 0.94. The sample chamber was first loaded with water, and …

The Effect Of Informed Consent Procedures On Sensory Panel Studies, Roxanne E. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Through telephone conversations with directors of 25 randomly selected sensory panels, it was established that the informed consent procedures of no-risk sensory panels vary greatly. The concern about biases of panelists' judgements, resulting from information given as part of the informed consent procedures, has been given as the reason for modifying or ignoring federally defined informed consent procedures. A series of three in-house and two separate consumer sensory panels were designed to test whether the ratings of altered flavor, altered viscosity, and unaltered milk could be affected by informed consent form usage. Two separate test situations included informed consent forms …

Accumulation Of Formaldehyde And Its Relation To Postmortem Aging Of Non-Gadoid Fish Species, Mohamad A. Al-Kanhal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three non-gadoid fish species, trout (Cynoscion regalis), English sole (Paraophyrys vetulus) and Pacific red snapper (Scomber japonicus) have been tested for the recovery of trimethylamine oxide (TMAO), trimethylamine (TMA), dimethylamine (DMA), and formaldehyde (FA) during postmortem storage at 4°C and -5°C. TMAO, TMA, and DMA content was determined by measuring them as the salt derivative of picric acid. FA was determined by using the 3-Methyl-2-Benzothiazolinone hydrazone test.

In muscle tissue of red snapper and English sole, it was clear that initially TMAO decreased during storage at 4°C, while the amounts of TMA, DMA, and …

Variations In Volatiles From Lamb Adipose Tissue, Yn-Mei Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Lamb adipose tissue, representing 4 breeds, 3 sex-types and 3 weight categories, were studied to measure the variation in the flavor profile between individual animals, based on breed, sex- type and carcass weight. The flavor concentrates were prepared by steam distillation, ether extraction and fractionation. Pooled samples were prepared in the same way to measure any variations due to methodology.

Gas chromatographic separation and statistical analysis, based on analysis of variance, indicated that 21 peaks out of 124 peaks showed significant differences (at 5% level or 1% level). Among these 21 peaks, 5 were affected by breed, 4 by sex-type, …

A Growth Study On Children/Adolescents With Insulin Dependent Diabetes Mellitus, Noreen Brown Schvaneveldt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate the growth of children/adolescents ages 8 through 15 with insulin dependent diabetes mellitus attending Camp UTADA in 1977 and/or 1978 and/or 1979. Measurements included were height, weight, triceps skinfold, mid-arm circumference and mid-arm muscle circumference. Measurements were compared with those of a nor~al, nondiabetic population. Total glycosylated hemoglobin (HbAl), duration of the disease and age at onset of the disease were also investigated for an effect on growth.

The majority of the male subjects were less than the 50th percentile for height and weight. Females were equally distributed above and below the …

The Effects Of Dietary Calcium And/Or Iron Deficiency Upon Murine Intestinal Calcium Binding Protein Activity And Calcium Absorption, Catherine M. Mcdonald

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Iron deficiency has been shown to impair calcium absorption, leading to decreased bone mass. Vitamin D3-dependent calcium binding protein (CaBP) has been demonstrated to be necessary for the active transport of calcium in the intestine of numerous species. Iron deficiency might affect the activity of the calcium binding protein.

Four experimental diets were formulated as follows: Diet 1, iron adequate, calcium adequate; Diet 2, iron deficient, calcium adequate; Diet 3, iron adequate, calcium deficient; Diet 4, iron deficient, calcium deficient. Weanling, female rats were separated into 4 groups of 48 animals each and fed the respective diet for a period …

Optimum Enzyme Treatment For Liberation And Assay Of Pantothenic Acid In Blood, Jan Pearson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A great deal of variability has been evident in reported pantothenic acid blood values. The purpose of the study was to establish optimum enzyme treatment for liberation and assay of pantothenic acid in blood and sera.

There were eight major findings. First, it was found that there was an active pantetheinase in sera, negating the need for hog kidney peptidase or pigeon liver enzyme in whole blood. The second finding (related to the first) indicated that there was significant autolysis of the peptidase bond between the pantothenic acid and cysteamine moieties of coenzyme A in whole blood. The third finding …

The Effects Of A Calcium Pectinate Film Upon Shrinkage, Palatability And Surface Microbial Growth On Carcasses And Selected Beef And Poultry Cuts, Clifford Arthur Stubbs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A process in which low methoxyl pectin is applied to the surface of meat carcasses and poultry to reduce shrinkage, maintain color and improve shelf life was evaluated. A 3.0 percent aqueous low methoxyl pectin (acidified with 1.4 percent acetic acid if required) was applied to beef, lamb and turkey carcasses by spraying and caused to form a gel coating by overspraying with a 3.5 percent calcium chloride salt solution.

Turkey carcasses treated with acidified pectin or acidified pectin after 3.0 percent acetic acid dip for 30 seconds were not significantly improved in shelf life over carcasses which were acid …

A Nutrition Education Component For High School Health Curriculums, Mary Jane German

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Adolescents, who have been shown to be at nutritional risk, and having poor nutritional knowledge and sporadic eating habits, are in need of comprehensive, sequential nutrition education. The purpose of this study was to develop, implement, and evaluate a nutrition education unit for inclusion in the health education curriculum of secondary schools. The two-week unit which included nutrient density concepts was evaluated in two high schools in Utah.

Data from a mail survey of health educators (n=74) revealed their need for nutrition training and resources, and guidance for integrating nutrition into health classes. High school health teachers were provided with …

Energetics Of Home Dehydration; The Effect On Product Cost And Quality, Crystal Ann Willis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was two-fold: (1) to compare different home dehydrators and determine if the operation and design of the home dehydrators affected the color, cost, nutrient content, acceptability or flavor of the resulting products and (2) to determine the effect of physical parameters on product color, nutrient content, acceptability and flavor. The physical parameters that were measured during the dehydration process were temperature, relative humidity, and mass flow rate of air. Two products, Daucus carota var sativa (carrot) and juice of Lycopersicon sp. (tomato), were dried in each of six dehydrators (treatments). A sensory panel was used …

Pantothenic Acid Status In An Elderly Population, Nedra K. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There has been insufficient data available for suggesting a recommended dietary allowance for pantothenic acid in the elderly population. The purpose of this study was to determine the average dietary intake of pantothenic acid and correlate it with urinary excretions and the blood levels of this vitamin to assess the pantothenic acid status of the elderly population.

A seven day diet record was obtained from 65 non-institutionalized and 26 institutionalized persons over 65 years of age assessed to be free of chronic diseases. A 24 hour urine specimen and a fasting blood sample was obtained from each study participant. An …

Microstructure And Rheology Of Process Cheese, Abdelaziz Hassan Rayan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Four batches of pasteurized process cheese were prepared from the same Cheddar cheese by cooking to 82C in the presence of sodium citrate, disodium phosphate, tetrasodium pyrophosphate or sodium aluminum phosphate. Each batch contained the same moisture (40.6%) and emulsifying salt concentration (2.5%). The process cheese was sampled for microstructural and rheological examination after 0, 5, 10, 20 and 40 min in the cooker at 82C.

Even though each emulsifying salt affected the physical properties of the process cheese differently, the cheese generally became firmer, stiffer, more elastic and less meltable as cooking time increased from 0 to 40 min. …

The Development Of Methodology For Gas Liquid Chromatographic Determination Of Plant Sugars In Maturing Reed Canarygrass, Allan Scott Bittner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was concerned with development of chromatographic methods suitable for determination of plant sugars. The resultant methodology was applied to the comprehensive study of plant carbohydrates as they vary during plant growth. Plant cell walls were isolated with boiling water followed by delignification with acid chlorite. The soluble portions were hydrolyzed with 2N sulfuric acid and the total sugars and individual monosaccharides were quantified using gas chromatography and colorimetry. The insoluble residues were hydrolyzed with 72% sulfuric acid followed by dilution with water to 2N and further hydrolysis. The effects of duration of delignification and acid hydrolysis were interpreted …

The Effects Of Tri-O-Tolyl Phosphate (Totp) On The Immune System Of Mice, Craig R. Brinkerhoff

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

TOTP is a prevalent industrial and environmental contaminant which has been shown to be a neurotoxic agent. This study was undertaken to investigate the effects of this compound on the immune system. Several techniques were employed to test the humoral as well as cellular effects. Male Swiss Webster mice were administered by gastric gavage with three doses of TOTP (5, 50, and 500 mg/kg) and one dose TMTP (50 mg/kg) in corn oil once a week for 13 weeks. Control animals were given corn oil alone.

Lymphocyte transformation was determined on cultures of splenic cells obtained from animals sacrificed at …

Habitat Manipulation For The Reestablishment Of The Utah Prairie Dog In Capitol Reef National Park, Rodney L. Player

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah prairie dogs were transplanted onto the site of a former colony located on Jones Bench in the northwestern corner of Capitol Reef National Park. Shrubs on Jones Bench were significantly taller than those found on active colonies of Ut ah prairie dogs located nearby on the Awapa Plateau. Therefore, the Jones Bench site offered an opportunity to test the hypothesis that shrub height is a major inhibitory factor on occupation of sites by prairie dogs. Four sites of 5 ha each were delimited on Jones Bench prior to the transplanting o~ animals. Vegetation treatments were carried out on three …

Activities Of Domestic Sheep On Central Utah Ranges, J. Daniel Rodgers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The range sheep industry, economically important to Utah and to the United States, produces needed food and fiber from much of the less productive land. Improved management will depend on more knowledge of the range ecosystem. Research to determine the time spent by sheep in activities of differing energy demands and to determine what factors affect sheep activity was completed on Utah ranges.

The research was conducted in central Utah on foothill range near Eureka and on mountain range near Scofield. Rambouillet sheep were loosely herded on the sagebrush-aspen areas on mountain range and were unherded on foothill range where …

Lactation And Weaning Weight Relationships In Hereford And Simmental-Hereford Cows In Southern Utah, William E. Zimmerman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Lactation and weaning weight relationships were studied in 37 cows grazing Southern Utah irrigated pastures during the summer of 1979. The herd included 23 Hereford cows ranging in age from 2 to 12 years and 14 Simmental-Hereford half-blood cows aged 3 to 9 years. The suckling calves were sired by Hereford bulls.

The average daily milk yield of 6.16 kg was affected by the cow breed. Simmental-Hereford cows produced 7.11 kg of milk per day, while the Herefords produced 5.21 kg per day. Milk production declined with increased days in lactation. The decline was linear in the Simmental- Hereford cows …

Ultrastructural Localization Of Solanidine In Potato Tubers, Shau-Ron Han

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Solanine, the green substance in potato, Solanum tuberosum L., tubers, is a toxic glycoalkaloid that is a potential human health hazard. To control the formation of this glycoalkaloid a greater understanding of its site of synthesis is needed. Labelling of solanidine, a direct precursor in the biosynthesis of solanine, with digitonin may indirectly locate the site of solanine synthesis in tubers. A study using ultrastructural cytochemical techniques was initiated to explore this possibility.

Sprouted tips and peridermal complex (periderm and cortex) tissue were fixed three different ways: (1) glutaraldehyde only, (2) osmium tetroxide and glutaraldehyde, and (3) glutaraldehyde-osmium tetroxide-digitonin mixture. …

Iron And Zinc Deficiencies In Selected Calcareous Soils Of Southern Utah, E. Frank Schnitzer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The response of field corn to iron and zinc fertilization was studied using a split plot experimental design in Millard County, Utah, in cooperation with the Utah State University Extension Agent and a local farmer. mainplot treatment applications consisted, on an acre basis, of (1) 5 tons of sulfuric acid, (2) 1 ton sulfuric acid, (3) 1.8 tons gypsum, (4) check plot. Subplot treatments were (1) Fe at 5 lbs/Ac, (2) Zn at 10 lbs/Ac, (3) Fe and Zn at 5 and 10 lb / Ac, respectively, (4) check plot. The iron and zinc applications were essentially rendered unavailable by …

Job Competencies, Employment Demands, And Perceived Training Needs In Production Agriculture In Utah, James O. Summers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was limited to 165 farmers involved in various segments of production agriculture in the state of Utah. County agents and vocational agriculture teachers in each county nominated these farmers as candidates according to their respective farming operations.

The following six defined areas of production agriculture were used as selection criteria to insure equal input in the study: Beef, Dairy, Swine, Sheep, Poultry, and Crops. All farmers were surveyed by means of persona l interviews conducted by either county agents or vocational agriculture instructors in their respective counties. The surveying instrument used was developed through a thorough review of …

The Effect Of Exploitation On Some Parameters Of Coyote Populations, Robert P. Davison

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study was conducted to examine the effect of exploitation on population parameters of coyotes (Canis latrans). Hypotheses tested were: (1) Substantial levels of exploitation do not change spring and fall coyote densities significantly; (2) Coyote recruitment (reproduction and immigration) rates are unaffected by substantial levels of exploitation; (3) Annual coyote survival rates are not related to intensity of harvest rates; (4) Coyote emigration rates remain unchanged by substantial levels of exploitation. Coyote demographic parameters were measured from 1975 to 1978 for a treatment population subject to substantial exploitation (Curlew Valley, Utah and Idaho), and for an unexploited …

Reproductive Success Of The White-Faced Ibis: The Effects Of Pesticides And Colony Characteristics, Benjamin B. Steele

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Reproductive success of white-faced ibis (Plegadis chihi) was measured in nine colonies on marshes in northern Utah during 1979. The effects of pesticides and characteristics of colonies and sub-colonies on reproductive success were examined.

DDE was present in all 80 eggs sampled and had a geometric mean concentration of 1.25 ppm. Shell thickness of 176 eggs was 4.3 percent below pre-1945 thickness. Shell thickness was weakly correlated with residues of DDT, DDE, Dieldrin, and heptachlor epoxide. Residues of these four pesticides were all correlated with each other. However, because of the stronger correlations between shell thickness and two …

An Investigation Into A New England Fisheries Development Project: Towards The Expansion Of The Whiting Fishery, J. H. Kaelin

Marine Affairs Theses and Major Papers

In 1973, the New England Fishery Development Program (NEFDP), an industry/government partnership was formed to offset a portion of the economic decline of the New England fishing industry while encouraging the development of underutilized species and nontraditional fishery products. The purpose of this paper is to examine one of the NEFDP's development projects and to comment on its apparent success. This paper attempts to determine if domestic processors can be expected to produce whiting fillet blocks that can compete in the market place with foreign imports. Several aspects of the problem are favorably resolved-an abundant whiting resource is available; the …