Search
Now showing items 61-80 of 274
The viscosity of dacitic liquids measured at conditions relevant to explosive arc volcanism: determing the influence of temperature, silicate composition, and dissolved volatile content
(University of Missouri--Columbia, 2006)
Viscosity can control various magmatic processes and varies by orders of magnitude as a function of temperature, composition and dissolved volatiles. There is no predictive model for the viscosity of dacitic liquids, which ...
The Spoon Toe Site (11MG179): Middle Woodland gardening in the lower Illinois River Valley
(University of Missouri--Columbia, 2005)
This thesis is an examination of archaeobotanical remains from the Spoon Toe site, a Middle Woodland Massey phase site located in the uplands above the Lower Illinois River valley in Morgan County in western Illinois. The ...
Restoring forest composition and structure of riparian corridors in the Missouri Ozarks
(University of Missouri--Columbia, 2008)
bottomland agricultural fields. These afforestation practices most often consist of planting bare-root tree seedlings of a select number of hardmast species and managing vegetation with a number of pre- and postemergent herbicides, or planting a perennial...
The sublethal effects of methoxyfenozide on the field orientation and courtship behavior of Cydia pomonella (Linnaeus) (Lepidoptera: tortricidae)
(University of Missouri--Columbia, 2008)
The sublethal effects of ecdysone agonist methoxyfenozide on the mating behavior and field orientation of codling moth, Cydia pomonella (Linnaeus), was examined. Five different lure types were placed in the upper canopy ...
Are structural changes in the agri-food sector causing the instability of parochial ag-producers?
(University of Missouri--Columbia, 2009)
Parochial (Amish and Mennonites) agriculture producers have been known for their stability (historically large numbers) (Kollmorgen, 1943). Though, more recently, the percentage of parochial members who are ag-producers has been steadily declining...
Effects of temperature, photoperiod, and substrate on the maturation and reproductive behavior of the Topeka shiner (Notropis topeka)
(University of Missouri--Columbia, 2008)
The Topeka shiner (Notropis topeka) is a federally-listed endangered cyprinid species native to small headwater prairie streams in the mid-west of the United States. It generally spawns over and around sunfish (Lepomis ...
Analysis of residential housing markets in large U.S. metropolitan areas
(University of Missouri--Columbia, 2009)
The This paper consists of three essays focusing on the geography of U.S. residential housing markets, the role of housing attributes in the residential housing markets, as well as the housing tenure choices in large ...
Broadening the perspective on employee absenteeism : the effects of work group and nonwork factors
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The present study examined employee absenteeism in relation to variables new to absenteeism literature while addressing several methodological issues highlighted...
Development and evaluation of a technique for evaluating riparian vegetation change in the tallgrass prairie
(University of Missouri--Columbia, 2004)
North America's tallgrass prairie region is one of the world's most endangered ecosystems. Recent management and research efforts have focused on the effects of anthropogenic change to upland components of the tallgrass ...
Synthesis and evaluation of [105]Rhodium (III) complexes of phosphine chelate systems
(University of Missouri--Columbia, 2008)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] [Superscript 105]RH has attractive nuclear and chemical properties to be investigated as a nuclide for development of potential radiopharmaceuticals. Complexes of Rh...
Detection and modeling of bat species occupancy at multiple scales across a forested landscape in southeastern Missouri
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Populations of forest dwelling bats have been in decline in recent years, and have therefore become increasing foci in forestry research efforts. Difficulty in bat species...
Reconsidering the paleorange of Fagus grandifolia
(University of Missouri--Columbia, 2009)
One of the major consequences of forecasted future climate change is the redistribution of plant life due to species migrations and extinctions in response to these changes. This has caused many scientists to look at the ...
Phytase : anatomy of an invisible win-win technology
(University of Missouri--Columbia, 2009)
the farmer's knowledge and stated use of phytase using data from a spring 2006 of Missouri and Iowa poultry and livestock farmers. Responses to a number of questions in this survey reveal that knowledge of this win-win innovation is low. It also shows...
Methods for high-resolution soil-landscape modeling in midwest upland landscapes
(University of Missouri--Columbia, 2008)
. These methods were tested in the upland landscapes of northern Missouri. Sensors, especially DRS, successfully estimated profile clay and organic carbon. Peak functions were valuable for modeling profile clay content and covariates of clay. Coherent depth...
Investigation of static interfacial fracture in orthotropic-orthotropic composite bimaterials using photoelasticity
(University of Missouri--Columbia, 2009)
The effects of static Mode I (opening mode) and mixed-mode (both Mode I - opening mode and Mode II - shear mode present) loading on orthotropic-orthotropic bimaterial interface cracks and isotropic-orthotropic bimaterial ...
Participation in tax deferred retirement programs in a defined benefit environment
(University of Missouri--Columbia, 2006)
The purpose of this study is to examine the major factors that influence employees' decisions regarding their levels of participation in employer sponsored tax-deferred retirement savings accounts (TDAs). At the broadest ...
Landscape and inchannel factors affecting the distribution and abundance of riverine smallmouth bass in Missouri
(University of Missouri--Columbia, 2008)
I developed a series of spatially-nested research objectives to identify habitat elements related to the distribution and abundance of riverine smallmouth bass Micropterus dolomieu in Missouri. The range of smallmouth bass was identified using a few...
Materials study supporting thermochemical hydrogen cycle sulfuric acid decomposer design
(University of Missouri--Columbia, 2007)
A laboratory scale sulfuric acid decomposer simulator was constructed at the Nuclear Science and Engineering Institute at the University of Missouri- Columbia. The simulator was capable of producing the temperatures and corrosive environments...
The investment horizon issue in user-owned organizations
(University of Missouri--Columbia, 2005)
This research addresses the issue of an investment constraint in user-owned agricultural organizations called the horizon problem. Scholars have suggested the restrictions on the transferability of residual claimant rights ...
Ligands for the sigma receptor and the mu-opioid receptor
(University of Missouri--Columbia, 2007)
The sigma receptor is a unique receptor family with two subtypes: sigma-1 and sigma-2. In order to conduct structure-activity relationship studies (SAR), a series of specific 1-phenylpropyl-4-benzylpiperidine and ...