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Behavioral choice and demographic consequences of wood frog habitat selection in response to land use
(University of Missouri--Columbia, 2007)
Land use is a pervasive form of disturbance affecting natural systems on Earth. My dissertation research is set within the context of a large scale project referred to as Land-use Effects on Amphibian Populations (LEAP), where researchers in Maine...
An environmental assessment of sensor-based variable-rate nitrogen management in corn
(University of Missouri--Columbia, 2006)
-light reflectance sensors have been tested for mid-season, on-the-go N fertilizer application in corn. This 2004 and 2005 study was conducted on 12 Missouri producer corn fields to (1) evaluate the relationship between EONR and active-light reflectance sensor...
Analytical and experimental evaluation of steel sheets for blast retrofit design
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Blast resistant design has come to the forefront of engineering concerns in the wake of recent terrorist threats to the United States. The focus of ...
Freedom and self-knowledge in the dramatic works of Anton Chekhov
(University of Missouri--Columbia, 2005)
-knowledge necessary for free action is available only from others, while Chekhov's characters who find meaning in their actions are able to do so by virtue of their orientation toward others rather than themselves....
Evaluation of fecal glucocorticoid metabolite assays for short-term stressors and validation for stress monitoring in African herbivores
(University of Missouri--Columbia, 2006)
During stressful periods, glucocorticoid production is increased. Glucocorticoid metabolites are found in blood, urine and feces. Our first goal was to determine if fecal glucocorticoid metabolite (FGM) measurements are a ...
Is maturing out of problematic alcohol involvement related to personality change?
(University of Missouri--Columbia, 2008)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Problematic alcohol involvement typically peaks in the early 20s and declines with age. This "maturing out" of alcohol involvement is usually attributed to individuals' attaining...
Repetitive sequence analysis for soybean genome sequences
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Repetitive DNA sequences represent many difficulties in genome sequencing and analysis. Meanwhile, some of repetitive sequences play an important role ...
Exploring the relation between social anxiety and depression in youth: the roles of friendship and peer acceptance
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This study examined whether problems establishing and maintaining positive, supportive relationships with peers may mediate the relation between social ...
Bioinformatics methods for protein identification using peptide mass fingerprinting data
(University of Missouri--Columbia, 2009)
development: we implemented our computational methods in an open source package "ProteinDecision" which is freely available upon request. ....
Mechanical properties of complex biological systems using AFM-based force spectroscopy
(University of Missouri--Columbia, 2005)
in the extracellular matrix (ECM). Because of its abundance, an understanding of how disease affects collagen mechanics is crucial in disease prevention efforts. Two levels of type I collagen structure were investigated, subfibrils (on the order of 1 [mu] m in length...
Attention-deficit hyperactivity disorder and exposure to nature in college students
(University of Missouri--Columbia, 2014)
students with ADHD, as measured by cognitive performance, self-reported symptoms, and perceptions of restoration in one of two different environments. Participants took 20-minute walks in either a natural or urban area and completed these measures before...
Cognitive radios: spectrum sensing issues
(University of Missouri--Columbia, 2007)
Cognitive Radio can smartly sense and adapts with the changing environment by altering its transmitting parameters, such as modulation, frequency, frame format etc. The main challenges with cognitive radios are that it ...
Impact of grazing stockpiled tall fescue of lactating beef cows
(University of Missouri--Columbia, 2006)
Two experiments are described, in which fall-calving cow-calf pairs grazed stockpiled tall fescue at three different endophyte infection levels (20, 51, and 89%) and four forage allowances (2.25, 3.00, 3.75, and 4.50% of BW). A hay feeding treatment...
Dissipation and carryover of imidazolinone herbicides in imidazolinone-resistant rice (Oryza sativa)
(University of Missouri--Columbia, 2007)
including flooded soils. Thirteen selected treatments of two and three sequential applications of imazethapyr and imazamox were applied to IR rice in 2004 and 2005. In 2005 and 2006, non-IR rice was planted into the previous years' plots to evaluate...
Use of different sources and rates of foliar potassium with glyphosate to overcome environmental- and management-induced K deficiency in soybeans
(University of Missouri--Columbia, 2007)
The incidence of potassium (K) deficiency in soybeans [Glycine max (L.) Merr] has increased over the last few years in Missouri and other Midwestern states. Postemergence application of foliar K fertilizer would have the ...
The mechanism for paraquat toxicity involves oxidative stress and inflammation : a model for Parkinson's disease
(University of Missouri--Columbia, 2007)
Parkinson's disease (PD) is a neurodegenerative disorder known to affect the dopaminergic neurons in the substantia nigra. Epidemiological studies have shown an increased risk of developing PD with exposure to paraquat. ...
Biology and management of cut-leaved Teasel (Dipsacus laciniatus L.) in central Missouri
(University of Missouri--Columbia, 2006)
Cut-leaved teasel is a biennial invasive weed that grows along roadsides and low disturbed areas. This research was to determine growth characteristics, herbicide efficacy, and seed production of teasel. Growth characteristics ...
Field performance of instrumentation for monitoring effects of timber harvesting on water quality
(University of Missouri--Columbia, 2006)
flow events and a water balance performed on an ephemeral drainage basin revealed approximately 20% of moisture exits as channel flow. Performance of all equipment is evaluated. Over 200 pieces of equipment have collected nearly 360 channel water...
Development and implementation of an underwater system for interface wave measurements
(University of Missouri--Columbia, 2005)
intrusive methods. This work includes the development and field testing of an underwater source capable of generating surface wave energy for the determination of shear wave velocity profiles with resolution in the top foot to depths up to 20 feet. A...
Seasonal variation in nutrient availability and uptake by oak saplings following four nitrogen treatments on Missouri River floodplain
(University of Missouri--Columbia, 2008)
. Treatments included applying 83 g 20N-10P-10K as slow-release ammonium nitrate, 87 g 19N-6P-9K slow-release urea, interplanting with two nitrogen-fixing false indigo seedlings, or left untreated. After analysis, foliar nitrogen averaged 1.9 percent for pin...