Digital Commons Network^™

Effects Of Information Provision On Aids-Related Fears, Brenda Ann Husfeldt

Electronic Theses and Dissertations

No abstract provided.

An Automated Diagnostic Test And Tutorial Package For Basic Skills Of Mathematics In Post Secondary Vocational Education Of Kentucky: Construction And Validation, Odell D. Wilson

Electronic Theses and Dissertations

The purpose of this research study was to determine characteristics of entering vocational students in Kentucky Area/State vocational schools and to develop a computerized diagnostic instrument and tutorial package for assisting students in the mastery of necessary basic skills in mathematics. After specific math skills were identified in which proficiency is required of vocational education students, item pools were constructed for each skill. The skill item pools were validated using approximately 500 public school students throughout the grades of four through eight in public schools of Harlan County, Kentucky, Lee County, Virginia, and Washington County, Tennessee. The items within each …

A Descriptive Profile Of School Board Members In North Carolina, Merrell J. Riddle

Electronic Theses and Dissertations

The purpose of this study was to analyze the characteristics of school board members in the public school systems of North Carolina in order to obtain a profile of the typical board member and compile the suggested qualifications as a basis for possible change in the legal requirements for membership on local boards of education. A researcher-designed questionnaire was mailed to all school board members in North Carolina. Responses were received from 309 board members. A descriptive profile of board of education members in the public school systems of North Carolina was developed; determination of legal requirements for board membership …

Purification And Characterization Of An Inhibitor Of Thymidine Uptake From Culture Supernatants Of Human Tonsil Lymphocytes, Abdolreza Zarnegar

Electronic Theses and Dissertations

Lymphocytes from human tonsils were cultured in the absence of serum for 3 days. In the presence of the concentrated culture supernatant the proliferative response of PBL, to con A, as measured by the uptake of ('3)H-tdr, was significantly reduced. The suppressor substance was referred to as SMAL (suppressor of mitogen activated lymphocytes). The estimated molecular weight of SMAL under nondenaturing conditions was 100,000-300,000. SMAL also suppressed the incorporation of ('3)H-tdr by a variety of mouse and human tumor cell lines. The activity of SMAL was sensitive to pronase and heating at 100(DEGREES)C for 30 minutes but insensitive to RNase. …

Abscisic Acid And Tissue Desiccation Alters Ribonuclease I Activity In Winter Barley Without Cold Acclimation, James Valentine Anderson

Electronic Theses and Dissertations

This research was initiated to obtain additional information about the causes for phenotypic variation of RNase I activity within winter barley cultivars. Unpublished data from this laboratory shows that antibody produced from RNase I obtained from two cultivars was mutually cross-reactive with antigen from the two cultivars of winter barley. The difference seen in RNase I activity between cultivars which can not be explained by the amount of RNase present may have similarities to that of inactive or incomplete forms of certain enzymes found in sec B mutants. Ferra-Novick et al. reported such sec B mutants as having early inactive …

Factors Affecting The Use Of Herbicides In Conservation Tillage, Pamela J. Hutchinson

Electronic Theses and Dissertations

An alternative method of powering and guiding agricultural implements was described and tested. The system utilized a center pivot irrigation gantry as a position reference device for an electrically powered tool-frame. The system induced the tool-frame to follow a reference point on the irrigation gantry, while that point was incremented outward by a ground driven mechanism. The path followed by the tool-frame was that of an Archimedean spiral. A crop was planted and cultivated with the system, while evaluating the path for accuracy within operations, and repeatability between operations comparison of the overall energy efficiency and energy costs was made …

Variability In Rhizoctonia Solani Kühn Pathogenic On Flax, Nallathamby Kangatharalingam

Electronic Theses and Dissertations

Physiological and pathogenic variability among isolates belonging to anastomosis groups (AG) one and four of Rhizoctonia solani Kuhn pathogenic on flax were investigated. Isolates were obtained from a soil survey of flax (Linum usitatissimum L.) fields in South Dakota, from cooperators in Minnesota, and Japan, and by the production of single basidiospore cultures. Isolates showed physiological variability (both inter and intra-AG variability) in linear growth at different temperatures, linear growth at different matric potentials of cornmeal agar (CMA) ammended with NaCI, and linear growth at different pH of CMA adjusted with HCI or NaOH. Inter and intra-AG variability among the …

Characterization Of Monoclonal Antibodies To The Nebraska Strain Of Bovine Coronavirus, Jeanie Marie Lembke

Electronic Theses and Dissertations

The purpose of this study was to develop and characterize a panel of monoclonal ·antibodies specific for epitopes on the Nebraska strain of bovine coronavirus (BCV). The hybridomas were prepared by fusion of spleen cells from BALB/c mice hyperimmunized with BCV and from SP2/0Ml, NS-1, and P3-X63-Ag8.653 myeloma cell lines. Seven hybridoma clones were derived from the fusions. The immunoglobulin isotype IgGl was the most common antibody produced by the hybridomas. BALB/c mice were inoculated with hybridorna cells to produce ascitic fluids. Assays were performed on the ascitic fluids to determine which biological functions of the bovine coronavirus virions were …

Ozonation Pilot Treatment Of A Surface Water Supply: Ancillary Studies, Fairmont, Minnesota, Brian Lee Hoellein

Electronic Theses and Dissertations

This thesis is part of an investigation to determine the feasibility of using ozonation to control odors from the Fairmont municipal water supply. The primary source of water for Fairmont is

Budd Lake. Odors develop in this lake water from the decomposition of organic matter such as algae and vegetation. Ozone was applied to the water at dosages of approximately 0.5, 1, 2, 4, 8, 12, 16, 20 and 24 mg/1 at contact times of 2.5, 5, 20 and 30 minutes using a continuous-flow ozonation pilot system Odor intensities of these waters were then measured in terms of Threshold Odor …

Direct Pharmacist Involvement In Antibiotic Therapy As A Potential Cost Savings Activity, R. G. Mclester

Electronic Theses and Dissertations

No abstract provided.

Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell

Electronic Theses and Dissertations

Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as a dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100 % of the concentrate dry matter in place of corn and soybean meal. Total mixed diets, fed individually, contained concentrate corn silage and alfalfa hay at 52, 32, and 16 % of the dry matter. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100 % chickpeas than 0 % chickpeas. Fat (3.06, 3.09, 3.28 %) was highest for cows fed 100 % chickpeas. Milk …

Ozonation Of A Municipal Groundwater Supply And Water Purification Plant Treatment Process Modifications To Prevent Trihalomethane Formation, Warren William Kersten

Electronic Theses and Dissertations

The City of Sioux Falls, South Dakota obtains its water supply from the Big Sioux aquifer which is located below and adjacent to the Big Sioux River. An extensive well field consisting of 34 wells has been developed to the north of the city. In addition to the well field, two surface water supply intakes in the Big Sioux River diversion channel are available for use during peak demand times of the year. Because the raw water generally has iron concentrations in the range of 3.0 to 6.0 milligrams per liter (mg/1) and manganese concentrations in the range of 2.0 …

"Voices In The Air" : The Story Of South Dakota Broadcaster Verl Thomson, Virginia J. Thomson

Electronic Theses and Dissertations

This thesis follows Verl Thomson's 65 years in broadcasting in a generally chronological order. The significant contributions Thomson has made to the broadcast industry, especially in South Dakota, are examined. He pioneered in programming techniques and believes he developed the first radio station (in 1948) with completely recorded and pre-recorded programming, except for live news reporting. He was among the first to take broadcasts out of the studio for "man on the street" and "service club" interviews, to cover breaking stories from the scene and to broadcast from movie theatres and the screen. His earliest innovation was in 1924 when …

Studies On The Sterile-Insect Technique As A Means Of Controlling The Stable Fly, Stomoxys Calcitrans (L.), In A Beef Cattle Feedlot In Brookings, South Dakota, Michael Aguilar Catangui

Electronic Theses and Dissertations

The stable fly is usually the only biting, blood-sucking fly breeding in appreciable numbers in and around confined animal facilities. An average number of 50 flies per animal can reduce the weight gains of calves on a growing ration by 0.9 kilogram per day. At present, the level of 5 stable flies per front leg of confined beef cattle is used as an indicator of the economic threshold when control measures must be instituted. Since the immature stages of the stable fly develop in decaying organic matter, the most practical control measure has been sanitation or the proper storage and …

Zeolite Ammonia Removal From Catfish Pond Waters, Mauricio Quiros

Electronic Theses and Dissertations

No abstract provided.

Growth And Proteolytic Activity Of Selected Psychrotrophic Bacteria In Whole Milk And Whole Milk Retentate, Ravinder Reddy

Electronic Theses and Dissertations

In the last twenty years a number of membrane separation processes have evolved from laboratory scale, through pilot plant investigation, to full scale production units. One such process, ultrafiltration, has been found particularly useful in the dairy industry. Ultrafiltration uses porous polymeric membranes to separate molecules, principally on the basis of their molecular weight. In milk, fat, protein and associated substances are retained on the membrane. Permeate, which passes through the membrane contains mainly water, lactose and other low molecular weight substances. There is interest in ultrafiltration of milk because of it is potential importance in saving costs to both …

Shadows Of Things, Diane Wilson Jacobs

Electronic Theses and Dissertations

No abstract provided.

2, 3-Butanediol Production By Immobilized Klebsiella Oxytoca (At Cc 13182), Guillermo Alfonso Pardo

Electronic Theses and Dissertations

No abstract provided.

Microbial Metabolism Studies Of Praziquantel, Julie Rakel Mikell

Electronic Theses and Dissertations

No abstract provided.

The Effect Of Kon The Electrophysiological Properties Of The Gastric Mucosa Using Microelectrodes, Rafael H. Freytez

Electronic Theses and Dissertations

No abstract provided.

A Marriage Of Material, Obie Clark

Electronic Theses and Dissertations

No abstract provided.

Truth And Media Credibility : A Case Study Of The Hattiesburg Hit Man Incident, Dolores Smith Bell

Electronic Theses and Dissertations

No abstract provided.

The Editorial View Of The Times Of London Toward Germany Between, Thomas Alexander Grier

Electronic Theses and Dissertations

No abstract provided.

Combined Conduction, Radiation Heat Transfer And Mass Transfer In Fibrous Insulations, Ravi Gorthala

Electronic Theses and Dissertations

No abstract provided.

The Oxford Influence : A Series Of Alumni Art Exhibitions 1987-1988, Frances Pinson Drummond

Electronic Theses and Dissertations

No abstract provided.

Attitudes Toward And Involvement In Pharmaceutical Purchasing : A Comparison Of Hospital Chief Executive Officers And Hospital Pharmacy Directors / By Patricia Peeples Tucker, Patricia Peeples Tucker

Electronic Theses and Dissertations

No abstract provided.

The Effect Of The Changing Development Policies On The Tanzanianmedia, 1961-1985, Albert Kanuya

Electronic Theses and Dissertations

No abstract provided.

Determination Of Radiative Properties Of Fiberglass And Foam Insulations / By Samir Yajnik, Samir Yajnik

Electronic Theses and Dissertations

No abstract provided.

Ammonia-Induced Injury In Pure Cultures And Natural Populationsof Coliform Bacteria, Gerardo Naundorf

Electronic Theses and Dissertations

No abstract provided.

Physiology Of Substrate-Induced Pleomorphic Forms Of Bradyrhizobium Japonicum / By Keith Reding, Keith Reding

Electronic Theses and Dissertations

No abstract provided.