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Now showing items 41-60 of 386
Top-soil root architecture characteristics of obsolete and modern soybean cultivars and shoot and seed nutrient contents
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI--COLUMBIA AT REQUEST OF AUTHOR.] Soybean (Glycine max Merr.) is one of the most important cash crops worldwide. It is widely used to produce oil and protein for food and animal feed. Soybean grain...
On the ability of rocks to conduct heat in the Lithosphere
(University of Missouri--Columbia, 2019)
This work focuses on creating a model for the conductive thermal transport properties of rocks using measured thermal diffusivity (D) with the Laser Flash Analysis (LFA) method, which eliminates common errors associated ...
Predictors of polypharmacy and off-label prescribing of psychotropic medications : a national survey of child psychiatrists
(University of Missouri--Columbia, 2011)
-fitting, theoretically sound model predicting polypharmacy and off-label prescribing of medications included just one predictor variable: total number of diagnoses. These findings suggest that comorbidity is an important issue in the pharmacotherapy of children...
Job satisfaction of Missouri high school principals as measured by the Minnesota satisfaction questionnaire
(University of Missouri--Columbia, 2010)
There is a lack of information regarding job satisfaction among high school principals in the state of Missouri. For this study, 108 high school principals in the state of Missouri responded to an internet survey using the Minnesota Satisfaction...
Clothianidin decomposition in Missouri wetland soils
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Neonicotinoids are a class of pesticides that have been prevalently used in agriculture since the 1990s. Globally, most neonicotinoid application ([about]60%) is delivered via...
Radioactive Au for potential radiotherapeutic application
(University of Missouri--Columbia, 2010)
Radioactive gold-198/199 can be used in therapeutic radiopharmaceutical agents to combat cancer. In this thesis, two projects involving the development of radioactive gold-198/199 are described. The first project discusses ...
Resolving space-time strain paths of the Panamint and Cottonwood Mountains, eastern California, through bedrock thermochronology and detrital geochronology
(University of Missouri--Columbia, 2020)
The landscape in Death Valley region is the result of a complex history that includes Miocene Basin and Range extension and Miocene to recent transtension. Despite being one of the best studied regions in the world, ...
The use of geomorphological and pedological soil characteristics to assess planar borrowing at a Mandan Indian village, North Dakota
(University of Missouri--Columbia, 2011)
The Double Ditch State Historic Site is situated in a loess landscape immediately east of the Missouri River near Bismarck, North Dakota. The site was occupied from ca AD 1450 to 1785 by Mandan Indians, Plains Villagers who exhibited a systematic...
Establishing a foundation for large DNA transfer to artificial minichromosomes and B insert platforms in maize
(University of Missouri--Columbia, 2019)
In plants, conventional genetic engineering methods limit the number of available traits that could potentially improve the quality of agriculture. Agrobacterium-mediated transformation and biolistic bombardment are tools used in transferring genes...
The perceived importance and gender differences in Missouri public high school assistant principalship duty delegation for promotion preparation
(University of Missouri--Columbia, 2010)
The purpose of this study was to develop an understanding of the duties commonly delegated to high school assistant principals which are perceived by building level principals to be the most important and least important ...
Climate and land use effects on hydrologic processes and water allocation in a primarily rain-fed, agricultural watershed
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] There is a need to raise our understanding of the impact of climate variability and change on hydrologic processes at the watershed scale. This is important, particularly...
Importance of agritourism for agripreneur goal accomplishment
(University of Missouri--Columbia, 2010)
associated with the importance of agritourism in accomplishment within four goal dimensions via descriptive-relational survey research. Agritourism farms in Missouri are in the business of agricultural production, rather than maintaining their land...
Three essays on the competitiveness of the US corn seed industry
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This dissertation provides an analysis of various aspects of the competitivity of the US corn seed industry. In the first essay I develop a price depend model of seed demand...
A hierarchical Bayesian analysis of multiple order constraints in behavioral science
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Psychology is an empirical science, and oftentimes the main target of interest is an empirical effect. For example, we may be interested in human perception and ask participants...
Reflux, aspiration and respiratory disease in dogs : clinical consideration and advances in aerodigestive diagnostics
(University of Missouri--Columbia, 2019)
The aspiration of gastric contents into the respiratory tract has been associated with the development and progression of multiple respiratory diseases in humans. In veterinary medicine the term "aspiration" is considered ...
Value chain integration, cluster cooperation, and sustainable livelihoods : bridging small farmers to high value markets
(University of Missouri--Columbia, 2011)
engaged in by the small farmers in supplying a fast-food company with assistance from external agencies, I generate a number of generalized observations about the possible conditions through which participation in the modern value chains improves...
The survival and growth of shortleaf pine systems in the Missouri Ozarks : effects of competition, genetics, and site preparation
(University of Missouri--Columbia, 2019)
survival and growth rates of planted shortleaf pine relative to artificial and natural hardwoods, identify barriers to regeneration success, and develop tools for individual tree assessment. Data from three long-term studies in southeastern Missouri were...
Comparing mosquito communities of various patch-matrix landscape combinations in central Missouri, with implications for developing models to forecast abundances of important mosquito taxa
(University of Missouri--Columbia, 2010)
-matrix landscape combinations common in five central Missouri counties; 2) evaluate the temporal occurrence of these mosquito taxa; 3) assess relationships between regional weather factors and the occurrence and abundance of the mosquito fauna; and 4) categorize...
Cover crop effects on corn plant water uptake and soil health
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Cover crops (CC), close growing crops that provide soil and seeding protection between periods of normal cash crop production or between trees in orchards or vines in vineyards...
Structural geology, tectonic geomorphology, and neotectonics of the central Afar Rift, Ethiopia and Djibouti
(University of Missouri--Columbia, 2018)
The central Afar depression offers an opportunity for quantitative analysis of the final stages of continental breakup at a divergent triple junction. Here, Quaternary faulting dissects Plio-Pleistocene flood basalts, ...