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Now showing items 61-80 of 332
Degradation and transport of veterinary antibiotics and estrogens in a vegetated buffer strip system
(University of Missouri--Columbia, 2022)
of the phytochemical DBG; (2) evaluate the degradation of steroidal estrogens estrone (E1) and 17[beta]-estradiol (E2[beta]) in soils; (3) and investigate the effectiveness of different VBS vegetation and buffer widths on the transport of SMZ and LIN in runoff from...
Restoring forest composition and structure of riparian corridors in the Missouri Ozarks
(University of Missouri--Columbia, 2008)
on the 1) artificial regeneration of 13 native bottomland tree species, 2) composition of natural tree regeneration, and 3) composition, structure, and diversity of the resulting ground flora at three riparian sites in the Missouri Ozarks. Choice of tree...
Economic analysis of woody biomass harvesting in the Missouri Ozarks
(University of Missouri--Columbia, 2010)
An integrated mechanized timber harvest thinning treatment to remove small diameter trees and merchantable saw logs was conducted on 30 acres of the Missouri, Ozarks in the summer of 2009. Two silvicultural treatments (single tree selection...
Using conflict positioning as a pretreatment in the public's evaluation of crisis management
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] By conducting a controlled experimental design, this study examined the effectiveness of conflict positioning, which was defined by Cameron (2004) as positioning an organization...
Resource selection by black-footed ferrets in relation to the spatial distribution of prairie dogs
(University of Missouri--Columbia, 2007)
Once extinct in the wild, the black-footed ferret (Mustela nigripes) is one of the rarest mammals in North America. Reintroductions of ferrets at 13 sites over 10 years have resulted in only 3 self-sustaining populations. Such results draw...
Effects of prescribed burning in Missouri Ozark upland forests
(University of Missouri--Columbia, 2007)
Prescribed fire is used in Missouri to achieve various silvicultural goals, but the use of burning in upland Ozark forests raises many questions that research has yet to answer. The purpose of this study is to examine the effects of prescribed...
Structure and organization comparisons of U.S. large volume swine producers : a national survey
(University of Missouri--Columbia, 1986)
A national sample of hog operations marketing 1,000 head or more a year was taken in 1981. A mail questionnaire gathered the necessary information. A second survey grouped operations into three groups: feeder pig producers, ...
Multi-scale factors influencing detection, site occupancy and resource use by foraging bats in the Ozark Highlands of Missouri
(University of Missouri--Columbia, 2007)
Conservation of bat populations requires understanding the associations between bats and their use of resources. We used maximum likelihood to estimate probability of site occupancy using acoustic data for ten species of ...
Growth of Semiconductor Thin Films by Pulsed Laser Deposition
(University of Missouri--Kansas City, 2016)
Pulsed ultraviolet light from a XeF excimer laser was used to grow thin films of
zinc oxide and tin dioxide on (111) p-type silicon wafers within a versatile high
vacuum laser deposition system. This pulsed laser deposition ...
Assessment of teachers' ability to integrate science concepts into secondary agriculture programs
(University of Missouri--Columbia, 2007)
agriculture instructors in teaching concepts related to science; 2) To assess how such a change in the curriculum would impact current agricultural education programs. The sample was derived from the population of agriculture instructors teaching in Missouri...
Reliability-based analysis of settlements of shallow foundations on cohesionless soils
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT REQUEST OF AUTHOR.] Although settlements of foundations on cohesionless soils usually are small, it is important to be able to predict them because the primary issue in the design...
Age as a factor in animal breeding
(University of Missouri--Columbia, 1918)
The experiment furnishing the basis for this discussion was begun in 1909 by Director F.B. Mumford and has since been continued under his general direction. Swine were used in the experiment since they probably lend themselves more readily than any...
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, ...
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...
Some characteristics and environmental sensitivities of taxpayers taking the United States political contribution tax credit during 1979-1982
(University of Missouri--Columbia, 1988)
This study was designed to determine characteristics of taxpayers taking the political contribution tax credit from 1979 to 1982. This work is similar to studies on the effectiveness of tax incentives in promoting positive ...
Assessing biotic communities and the capacity of restored bottomland hardwood forested wetlands to provide multiple ecosystem functions
(University of Missouri--Columbia, 2023)
addressed three research questions 1) Do WRE provide avian habitat across the full annual cycle? 2) How do hydrology and restoration age effect aquatic invertebrate and avian communities in restored BLH wetlands?, and 3) To what extent do WRE sites...
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...
Nectar in nicotiana : pollinator associations, sources of variation, and evolutionary consequences
(University of Missouri--Columbia, 2007)
significant heritable component was detected for nectar volume and energy, as well as corolla tube length, in an experimental population of Nicotiana alata. Although phenotypic correlations were significant for all measured traits, only two correlations had a...
Pre-harvest water quality of ephemeral streams in Missouri Ozark forests
(University of Missouri--Columbia, 2006)
baseline values were established: pH was 8.3, electrical conductivity was 200 us/cm, TSS was 0.5 g/L and TVSS was 0.2 g/L, Ca was 13 mg/L and Mg was 10 mg/L, K was 10 mg/L, TP was 1.3 mg/L and SRP was 1.1 mg/L, total nitrogen was 5.8 mg/L and nitrate...
Great Lakes lake trout early mortality syndrome (EMS) : contaminants, thiamin status, and their possible interaction
(University of Missouri--Columbia, 2006)
Michigan can result in sublethal physical lesions or behavioral alterations such as diminished C-start response. 2,3,7,8-TCDD caused significant adverse effects of both C-start behavior and feeding in rainbow trout and lake trout young. In addition...