Theses and Dissertations at Montana State University (MSU): Recent submissions
Now showing items 21-40 of 10400
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Response of soil bacterial communities to cropping systems, temporal changes, and environmental conditions in the northern Great Plains
(Montana State University - Bozeman, College of Agriculture, 2021)Soil bacterial communities are essential components of the soil ecosystem that support crop production. However, agriculture in semiarid drylands and their associated soil bacterial communities face increasingly warmer and ... -
Out-migration dynamics of juvenile adfluvial bull trout in tributaries to the lower Clark Fork River, Montana
(Montana State University - Bozeman, College of Letters & Science, 2021)In the lower Clark Fork River, Montana, a two-way trap-and-haul program is implemented to conserve the adfluvial life-history strategy in Bull Trout Salvelinus confluentus populations in the presence of hydropower dams. ... -
Hybridization and invasiveness in Eurasian watermilfoil (Myriophyllum spicatum): is prioritizing hybrids in management justified?
(Montana State University - Bozeman, College of Agriculture, 2021)Hybridization can play an important role in the evolution of invasiveness. Eurasian watermilfoil (Myriophyllum spicatum L.) is a widespread aquatic invasive plant species that hybridizes with native northern watermilfoil ... -
Rock powered life in the Samail ophiolite: an analog for early Earth
(Montana State University - Bozeman, College of Agriculture, 2021)Serpentinization is a geochemical process wherein the oxidation of Fe(II)-bearing minerals in ultramafic rock couples with the reduction of water to generate H 2, which in turn can reduce inorganic carbon to biologically ... -
Evaluation of methanotrophic activity and growth in a methanotrophic-heterotrophic co-culture
(Montana State University - Bozeman, Norm Asbjornson College of Engineering, 2021)Methane is a potent greenhouse gas (GHG) and accounts for 20-30% of the GHG emissions globally. In nature, methane is utilized as a sole carbon and energy source by a group of bacteria referred to as methanotrophs. ... -
Examination of coronal loops between quiescent active regions
(Montana State University - Bozeman, College of Letters & Science, 2021)Active regions are dynamic and constantly evolving portions of the Sun, where the magnetic field emerges from beneath the solar surface and expands into the corona. Hot, dense plasma is aligned to these field lines and ... -
Assessment of district energy integration between buildings
(Montana State University - Bozeman, Norm Asbjornson College of Engineering, 2021)District heating or cooling is a system for distributing heat or chilled water in a centralized location through various systems which is intended for residential and commercial heating or cooling requirements. Montana ... -
Integrating DNA fingerprinting of invasive watermilfoil strains into aquatic vegetation monitoring and assessment
(Montana State University - Bozeman, College of Agriculture, 2021)Eurasian watermilfoil (Myriophyllum spicatum L.) and its hybrids with native northern watermilfoil (Myriophyllum spicatum L. x Myriophyllum sibiricum) (invasive watermilfoils) are among the most heavily managed invasive ... -
Evaluation of sustained release mineral boluses as a long-term nutrient delivery method for beef cattle
(Montana State University - Bozeman, College of Agriculture, 2021)Two studies were conducted to evaluate the efficacy of sustained release mineral boluses as an alternative nutrient delivery method for beef cattle. For both studies 16 ruminally-cannulated cows were used in a completely ... -
Assessing nonlinearity and memory extent in audio systems
(Montana State University - Bozeman, Norm Asbjornson College of Engineering, 2021)Creating digital models of existing audio devices is useful for increasing access to audio effects and for preserving audio history. In the work covered by this dissertation, we investigate the use of Volterra series ... -
Identification and cultivation of methyllycaconitine degraders from wild ruminants to protect against larkspur poisoning in range cattle
(Montana State University - Bozeman, College of Agriculture, 2021)Tall larkspur (Delphinium spp.) in the western United States present a serious toxicity danger to rangeland cattle. Consumption of Methyllycaconitine (MLA), the toxic alkaloid in larkspur plants, can cause annual losses ... -
Implementation of new literacy practices based on the science of reading: a relational leadership approach
(Montana State University - Bozeman, College of Education, Health & Human Development, 2021)The purpose of this qualitative case study was to understand how literacy leaders describe their roles and responsibilities in relationship with each other as they lead the implementation of a new literacy curriculum based ... -
Instructional feedback and learning: understanding the perspective of pre-service teachers for personal learning and future teaching
(Montana State University - Bozeman, College of Education, Health & Human Development, 2021)Instructional feedback has been demonstrated to be a critical element in student learning and achievement. While important for learning, instructional feedback is challenging to provide and challenging to receive. Research ... -
Controlling the area expansion of a backwards centrifugal fan blade passage using the principles of a diffuser and computational fluid dynamics
(Montana State University - Bozeman, Norm Asbjornson College of Engineering, 2021)Centrifugal Fans are widespread in today's modern built environment. While a few variations of these fans exist, backward centrifugal fans are an efficient economical option capable of producing the pressure and airflow ... -
Design and fabrication of membrane-based pressure sensor for capillary pressure measurement in micromodels
(Montana State University - Bozeman, Norm Asbjornson College of Engineering, 2021)Pressure is a fundamental quantity in virtually all problems in fluid dynamics from macro-scale to micro/nano scale flows. Although technologies are well developed for its measurement at the macro-scale, pressure quantification ... -
Influence of lithogenic energy on subglacial microbial community composition
(Montana State University - Bozeman, College of Agriculture, 2021)Chemosynthesis, the generation of biomass using chemical energy, supported life on early Earth and continues to sustain contemporary light-independent ecosystems. The mechanisms of nutrient release from the geosphere are ... -
The influence of heifer post-weaning residual feed intake on subsequent production, reproduction, grazing behavior, supplement intake behavior, dry matter intake and milk production of Black Angus beef cattle
(Montana State University - Bozeman, College of Agriculture, 2021)Residual feed intake (RFI) is a recognized measure of biological efficiency in beef cattle. However, RFI determination is expensive, time consuming and not well studied in beef cattle fed forage-based diets, nor how ... -
Retrospective analysis of a declining trumpeter swan (Cygnus buccinator) population in Yellowstone National Park
(Montana State University - Bozeman, College of Letters & Science, 2021)By 1933, the number of trumpeter swans (Cygnus buccinator) in the continental United States was reduced to roughly 70 individuals that nested and wintered in Yellowstone National Park (YNP) and the surrounding Greater ... -
Interactive policy effects of the 2010 Oxycontin reformulation
(Montana State University - Bozeman, College of Agriculture, 2021)In this paper I estimate the additional effects counties with active Prescription Drug Monitoring Programs and Medical Marijuana Laws felt after the 2010 OxyContin reformulation compared to counties without these laws. I ... -
How biological catalysts activate oxygen to realize its full potential
(Montana State University - Bozeman, College of Letters & Science, 2021)Dioxygen is a potent oxidant, inexpensive, and environmentally-friendly compared with most industrial oxidants, but intrinsic energy barriers to reaction limit its utility. Biological catalysts can activate O 2 by generating ...
