Digital Commons Network^™

Nitrogen Fertilization Of Smooth Bromegrass In Interior And Southcentral Alaska, Natalie D. Howard

Plant, Animal and Soil Sciences

Although forage crops occupy the majority of agricultural land in Alaska, best fertilizer management practices to maximize forage yield and quality in Alaska are not well established. The objective of this study was to determine optimum time and rate of nitrogen (N) fertilizer applications to produce high yields of high quality forage in interior and Southcentral Alaska from smooth bromegrass (Bromus inermus). Nine N fertilization treatments, differing in rate and time of application, were applied at four sites. Forage samples were harvested twice per season in 1999 and 2000 to obtain yield and quality values. Nitrogen applied at 225 kg …

December 17, 2007 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

The Effect Of Temperature On Circulating Levels Of Methyl Farnesoate And Ecdysteroid Hormones In Female Snow Crab Chionoecetes Opilio, From The Bering Sea, Jacqueline Loretta Mitchell

Fisheries

Methyl farnesoate, a reproductive hormone in crustaceans, was detected for the first time in the hemolymph of female Chionoecetes opilio. Ovigerous crabs were maintained at -1,0, 1, and 3° C to represent near bottom temperatures of the Bering Sea, throughout a reproductive cycle to assess changes, and temperature effects, in hormone levels associated with ovarian maturation, hatching and subsequent extrusion of the next clutch. Methyl farnesoate (MF) levels did not change significantly in any treatment throughout the duration of egg incubation. Levels of MF significantly decreased in crabs exposed to -1 and 0° C when initial versus post extrusion levels …

Rhinoceros Auklet Developmental Responses To Moderate Food Restriction, Justine Sears

Biological Sciences

Seabird nestlings are vulnerable to food restriction because their parents may not buffer them from prey shortages. I conducted a captive study to explore how rhinoceros auklet chicks (Cerorhinca monocerata) may cope with food restriction and avoid long-term fitness consequences. I predicted auklet nestlings would be adapted to moderate levels of food-stress, and investigated how morphological allocation, glucocorticoid stress response, and fledging behavior change under conditions of a 50% calorie restriction. I also investigated effects of growth and food restriction on carbon and nitrogen stable isotope ratios ([delta]¹³C and [delta]¹⁵N) in auklet tissues. I found that food-restricted auklets allocated resources …

South Dakota State University Graduation Exercises, December 15, 2007, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the names listed in the program do not represent official confirmation of meeting the graduation requirements. The Graduation Exercises ceremony will commence with introductions by University President David L. Chicoine. Honorary Marshals for the event are Allen R. Branum, Acting Director of Diversity Enhancement and Professor Emeritus of Psychology, and Virginia Norris, Professor and Head of Psychology. Delivering the graduation address titled, "Knowledge Workers in Tomorrow's Economy," will be Aelred Kurtenbach, Cofounder of Daktronics, Inc. and Chairman of the Board of Directors. Dr. Carol J. Peterson, Provost and VIce Presidednt for Academic Affairs, will acknowledge faculty …

158th Commencement, Winter

Commencement Programs

No abstract provided.

2007 Fall Commencement, Harding University

Commencement Programs

Program for the Commencement on December 15.

Commencement Speaker: Howard Wright

Effects Of Time Specific F-Strain Mycoplasma Gallisepticum Inoculation Overlays On Pre-Lay Ts-11-Strain Mycoplasma Gallisepticum Inoculation On Performance, Egg, Blood, And Visceral Characteristics Of Commercial Egg Laying Hens, Elizabeth Anne Middleton Vance

Theses and Dissertations

Vaccination programs using live whole cell vaccines are presently being used to control outbreaks and to help protect flocks from field strains of Mycoplasma gallisepticum. The primary goal of the present study was to investigate the effects of a ts11-strain M. gallisepticum inoculation alone, and in conjunction with F-strain M. gallisepticum overlays at 22 or 45 weeks of age during lay. In this study, it was shown that a pre-lay ts11 vaccination had a broad range effect on the physiology of the commercial layer without affecting overall performance. The timing of an overlay vaccination using F-strain M. gallisepticum during lay …

Disease Management Strategies For Controlling Spring Dead Spot And Frequency Of Occurrence Of The Causal Organism Ophiosphaerella Korrae On 'Tifway' Bermudagrass (Cynodon Dactylon X C. Transvaalensis), Hunter D. Perry

Theses and Dissertations

Spring dead spot (SDS) is the most destructive disease of bermudagrass and its hybrids, affecting intensively managed bermudagrass turf that is at least three years old. This bermudagrass disease is most prevalent in the United States where winter temperatures become cold enough to induce dormancy. The symptoms of SDS appear as sunken, necrotic patches of turf ranging from several centimeters to greater than 0.5 m in diameter. Field studies were conducted at Old Waverly Golf Club in West Point, MS on a Tifway bermudagrass fairway beginning January of 2005 and concluding December of 2006 to determine the frequency and the …

Agronomic Performance And Beef Cattle Grazing Preference Among Three Prairie Bromegrasses, Allen Stewart Hubbard

Theses and Dissertations

Prairie bromegrass is a cool-season perennial bunchgrass with potential as a valuable forage crop in the southeastern USA. The objective of this study was to compare dry matter production, persistence, nutritive value, and beef cattle grazing preference of two experimental lines and a commercial species (cv. Matua) of prairie bromegrass. Plots were established in a randomized complete block design with four replications. When each plot accumulated at least 20 cm of growth, plots were grazed with Hereford x Angus steers at a stocking rate of 8400 kg/ha until the first plot was grazed down to 7 cm in height. Pre- …

A Study Of Clinical Outcomes Using Serum Albumin And Percentage Of Weight Loss Following Nutritional Intervention In Post-Operative Bariatric Patients., Jennifer Michelle Angus

Electronic Theses and Dissertations

The purpose of this study was to determine if post-operative serum albumin and percentage of weight loss improved in patients who received formalized pre-operative nutrition counseling. Nutrition intervention was measured quantitatively. A retrospective review of records was conducted on 77 RYGB patients (68 female subjects and 9 male subjects), ages 21-64, during January 2001 through January 2006.

The results indicated that patients who received pre-operative nutrition intervention had better clinical outcomes of serum albumin than those with no nutrition intervention from a registered dietitian. However, outcomes regarding percentage of weight loss varied. Both pre-operatively and at the 3 month post-operative …

Localization Of A Microsporidia Adam (A Disintegrin And Metalloprotease Domain) Protein And Identification Of Potential Binding Partners., Carrie E. Jolly

Electronic Theses and Dissertations

Microsporidia are spore-forming, obligate intracellular pathogens typically associated with opportunistic infections in immunocompromised individuals. Treatment options for microsporidia infections in humans are limited and additional research is necessary to create better therapeutic agents. For many pathogenic organisms, adhesion to the host cell surface is a prerequisite for tissue colonization and invasion. Our previous research has demonstrated a direct relationship between adherence of microsporidia spores to the surface of host cells and infectivity in vitro. In an effort to better understand adherence, we have turned our attention to determining what proteins may be involved in this process. Examination of the …

The Virginia Sol Eighth Grade Writing Test In Relationship To The National Commission On Writing Recommendations, Grade Configuration, Region, And Socioeconomic Status., Jeffrey R. Comer

Electronic Theses and Dissertations

The purpose of this quantitative study was to examine Virginia Standards of Learning 8^th grade writing assessments to determine if there was any association between school passing rates and the recommendations suggested by the 2003 National Commission on Writing to improve writing proficiency. This study further examined the possible differences in school passing rates that may exist due to the grade configuration of a school, the location of a school, the availability of a comprehensive writing plan, and the student percentage on free and reduced-price lunch. Data collection consisted of a self-administered survey sent to all 364 schools in …

The Isolation And Characterization Of The Microbial Flora In The Alimentary Canal Of Gromphadorhina Portentosa Based On Rdna Sequences., Amy Renee Robertson

Electronic Theses and Dissertations

Multicellular organisms are not single individuals but carry a complex natural microflora with them. This complex's diversity and function can be considered a distinct ecosystem. Traditional methods of isolation and identification miss >90% of the actual diversity. This study uses the gut microflora of the Madagascar hissing roach, Gromphadorhina portentosa, as a model to examine this ecosystem. Isolated cultured bacteria were used to establish methods for identifying members of the microflora based on ribosomal RNA sequences. Universal primers for Eubacterial, Archaeal, and Eukaryotic 16s/18s rRNA were then used for PCR amplification of total DNA isolated from gut contents. Sequences …

Conservation Planning, What Is Used And What Is Needed: A Needs Assessment Survey Of The Natural Resources Conservation Service, Jeremy Neal Murdock

Theses and Dissertations

How important is conservation planning to society today? It impacts the quality of our most precious natural resources: water, air, soil, wildlife, and plant material as well as every aspect of one of the largest industries in the United States: agriculture. In order to gain a better understanding of the conservation planning process, as well as the elements involved in creating an effective conservation plan, a Web-based survey was administered to one of the leaders in the advancement of conservation planning and planning technology, the United States Department of Agriculture’s (USDA’s) Natural Resources Conservation Service (NRCS). The purpose of this …

Effects Of Nitrogen Deficiency On Plant Growth, Leaf Photosynthesis, And Hyperspectral Reflectance Properties In Castor (Ricinus Communis L.), Satyasai Kumar Matcha

Theses and Dissertations

Influence of nitrogen (N) deficiency on castor cv. ‘Hale’ growth, physiology, and leaf reflectance properties were investigated. Treatments imposed were complete Hoagland’s nutrient solution (control, 100N), reduced N to 20% of the control (20N) and withheld N from the solution (0N) from 34 to 66 days after sowing (DAS) in 12-L pots grown out doors. N deficiency significantly reduced leaf area, chlorophyll and photosynthesis resulting lower total biomass. Leaf and stem growth rates were more sensitive to leaf N concentration than photosynthesis and leaf addition rates. N deficiency stress increased leaf reflectance at R555 and R715 nm and caused a …

Effects Of Soil Region, Litter Size, And Gender On Morphometrics Of White-Tailed Deer Fawns, Amy Castle Blaylock

Theses and Dissertations

Previous research documented that white-tailed deer body mass and antler size varied across physiographic regions of Mississippi. Deer from regions with greater soil fertility had greater body mass and antler size; however, this information is known only for individuals 6 months of age and older. I monitored birth mass and skeletal size of fawns produced by bred, adult, female white-tailed deer transplanted from the Delta, Thin Loess (Loess), and Lower Coastal Plain (LCP) soil regions to fawn in the Mississippi State University Rusty Dawkins Memorial Deer Unit. I evaluated the effect of soil region of origin, litter size, and fawn …

An Investigation Into The Techniques Of Neutralization Theory And Their Effects On Compulsive Consumption Behavior, Collin Z. Barnes

Theses and Dissertations

Due to societal and economic costs caused by compulsive consumption behavior, specifically problem drinking and overeating, a search has been launched for a cognitive explanation for the ‘deviant’ behaviors and the motivations that cause these behaviors to continue. This dissertation attempted to develop a better understanding of continued compulsive consumption behavior by investigating consumers’ use of the techniques of neutralization theory. Based on methodological concerns in neutralization research, the development of reliable and valid measures of the five techniques of neutralization theory were described and used to examine their moderation of compulsive consumption behavior and its relationship with social norm …

Selection For Reduced Seed Dormancy In Seven Native Grass Species, Kyle Bradley Holmberg

Theses and Dissertations

Lowland switchgrass (Panicum virgatum), big bluestem (Andropogon gerardii), indiangrass (Sorghastrum nutans), upland switchgrass (Panicum virgatum), little bluestem (Schizachyrium scoparium), beaked panicum (Panicum capillare), and purpletop (Tridens flavus) all show strong signs of seed dormancy which contributes to extremely poor field establishment. The objective of this work was to reduce seed dormancy by selecting individuals that exhibited reduced pre-stratification dormancy in laboratory tests. The classical breeding method of phenotypic recurrent selection was used to enhance germination. Of the three tall-stature species, lowland switchgrass made the greatest improvement in pre-stratification germination, followed by indiangrass and big bluestem. The four short stature species …

Sensory And Quality Assessment Of Grazing Standing Corn Versus Commercially Feed Lot Finished Beef, Husniye Imamoglu

Theses and Dissertations

This study compared feed lot finished beef and grazing standing corn beef from young steers for sensory acceptance, sensory quantitative descriptive analysis attributes palatability and Warner–Bratzler shear force values. In comparing both feeding treatments results indicated no differences (P > 0.05) between feeding treatments for all attributes including appearance, aroma (with handheld) and (with sniff bottle), texture, flavor and basic taste. However, there was difference (P < 0.05) in flavor, offlavor for different feeding systems by panelists. Analysis of variance for Warner- Bratzler shear force values revealed no differences (P > .05) between steaks from two treatments. Based on this research, the meat industry may wish to provide the consumer with the option of choosing beef that was traditionally feed lot finished or beef finished by …

Relationships Between Volatile Flavor Compounds, Sensory Descriptors And Consumer Acceptability Of American Dry-Cured Ham, Alessandra Julian Pham-Mondala

Theses and Dissertations

The relationships between volatile flavor compounds, sensory descriptors and consumer acceptability were determined for eight commercial American dry-cured hams using external preference and flavor mapping. The majority of consumers preferred (p<0.05) hams that had more intense caramelized, smoky, savory and molasses aromas as well as more intense sweet and savory flavors. Sixteen aroma impact compounds were identified from the headspace volatiles of dry-cured hams. The consumers with the highest acceptability scores preferred (p<0.05) hams that were characterized by 4-methyl-2-methoxyphenol (sweet ham), 4-ethyl-2-methoxyphenol (sweet ham), 2-methoxyphenol (smoky, cocoa), 2,6-dimethoxyphenol (smoky ham, savory) and 2uranmethanol (burnt meat, vitamin). Fourteen percent of consumers preferred (p<0.05) two hams that were characterized by methional (baked potato). Consumer acceptability scores were lower for hams either characterized by methanethiol (sulfur), carbon disulfide (sulfur), 2-butanone (sweet), 3-methylbutanal (malty, fermented), 2-heptanone (burnt meat, vitamin), hexanal (cut grass), benzeneacetaldehyde (floral), 1-octen-3-ol (mushroom) or characterized by benzaldehyde (burnt meat, cooked meat) and limonene (citrus).

Proteomic Analysis Of Listeria Monocytogenes, Sana Mujahid

Theses and Dissertations

Listeria monocytogenes is a deadly, Gram-positive foodborne pathogen that is ubiquitous in the environment. The bacterium expresses a number of virulence and stress adaptation proteins that support its pathogenic capabilities. Two-dimensional gel electrophoresis (2-DE) was used to map L. monocytogenes surface proteins, which play a central role in virulence, and to examine protein expression by L. monocytogenes grown on ready-to-eat meat, an important source of Listeria infections. A novel method for solubilization of surface proteins from L. monocytogenes for 2-DE was developed. Additionally, the unique proteome expressed by L. monocytogenes grown on a meat matrix was uncovered. The developed solubilization …

Use Of Corn Forage For Grazing Lactating Dairy Cows, Brandon Jermaine Mcclenton

Theses and Dissertations

Two lactation trials were used to investigate corn grazing as a management tool for dairies. Control (n = 18) cows, housed in free-stall barns were allowed ad libitum access to TMR while Grazing (n = 18 to 36) cows were limited TMR down to 70% of that in Controls and allowed 24-h access to corn plots. By wk 3, Grazing cows consumed 7.9 +/- 1.5 kg/hd/d of standing corn. By wk 7, the crop had matured and Grazing cows consumed 11.42 kg/hd/d of corn grain. Intake of TMR by Controls was 20.07 +/- 0.46 kg DM/hd/d, 19.78% greater than Grazing …

12/14/2007 - Eius First Presidential Scholar To Graduate.Pdf, University Marketing And Communications

2007

No abstract provided.

Fall Commencement [Program], December 15, 2007, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

The Murray Ledger And Times, December 14, 2007, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Winter Commencement: December 14, 2007, University Of North Dakota

UND Commencement Programs

UND Winter Commencement program from December 14, 2007.

Fall Commencement Ceremonies, University Of North Florida

Commencement Printed Materials

Program for the Fall Commencement ceremonies.

Bio-Surfaces And Geometric References For A Standardized Biomechanical Design Methodology For Mass Customization, Kimberly A. Jensen

Theses and Dissertations

This dissertation presents a method for the design of customizable products that interface with the human body. The method presented involves first, a consistent method of capturing and representing the human model so that the model can be used with CAx tools and solid modeling techniques. Second, it provides a design methodology based on feature structure planning and assembly modeling that provides a consistent structure to the design process so that it can be reused and parameterized. Third, a strategy for identifying parametric variables that are referenced to the human body is introduced. The core of this method is the …

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.