Digital Commons Network^™

Brewing Makes You Smarter, Joe Potter

Honors Projects

No abstract provided.

X-Ray Crystallographic And Functional Characterization Of Bshc: The Third Step Of Bacillithiol Biosynthesis, Andrew Vanduinen

Honors Projects

Bacillithiol is a low molecular weight thiol that reduces oxidative stress and regulates thiol homeostasis in some Gram-positive bacteria, including the pathogenic Bacillus anthracis and Staphylococcus aureus. It has recently been determined that bacillithiol plays a key role in resistance to the FDA-approved antibiotic fosfomycin. The biosynthesis of BSH is believed to occur via a three step pathway utilizing the enzymes BshA, BshB, and BshC. BshA replaces UDP with malate on UDP-N-acetylglucosamine. BshB acts as a deacetylase to produce glucosaminyl-malate, and BshC is proposed to add cysteine to glucosaminyl-malate to produce bacillithiol. The first solved structure of …

Community Building In The Classroom: Teaching Democratic Thinking Through Practicing Democratic Thinking, Danielle L. Lake

Faculty Peer Reviewed Articles

Key to teaching democratic thinking is actively engaging in the practice; and this, the article contends, is best facilitated by an experiential learning model where students are actively using, testing, and transforming not only the materials of the course, but also their own theories and experiences. Educators hoping to inspire democratic virtues and actions should also create and foster opportunities for community-building within the classroom by having students take more ownership for the class. This experiential process of learning disrupts the hierarchical theory-to-practice model traditionally implemented, reinforcing the value of an experiential and iterative practice of reflective engagement. In addition, …

Building A Peer-Learning Service For Students In An Academic Library, Mary O'Kelly, Julie Garrison, Brian Merry, Jennifer Torreano

Scholarly Papers and Articles

Academic libraries are well lauded for offering supportive spaces for students’ self-directed study, and significant resources are dedicated to librarian instruction in the classroom. What many academic libraries lack, however, is a middle ground, a routine way for students to help one another using best practices in peer-to-peer learning theory. A new, nonauthoritative, supplemental service by students and for students began at Grand Valley State University in Allendale, MI, in fall 2012 with a cohort of “peer research consultants.” Students learn information literacy skills with a well-trained peer, untethered from the hierarchy inherent in formal instruction environments. This paper describes …

An Investigation Of Tree Biomass In The Great Smoky Mountains National Park, Curt Skipper, Patrick Stokley, Sherry S. Herron

Faculty Publications

We determined the biomass (carbon storage) of four forest types in the Great Smokey Mountains National Park; pine/oak, cove hardwood, northern hardwood, and spruce/fir. Based on the GLOBE Programs land cover protocols (www.globe.gov), and the University of New Hampshire's GLOBE Carbon Cycle Program (http;//globecarboncycle.unh.edu/), we knew that species and tree circumference would be the two most critical factors in determining biomass, but we also hypothesized that number of trees in a study site and the elevation of the site would impact biomass. We hypothesized that old growth forest would contain greater biomass than a young forest. …

Native Orchids In Winter?, W. John Hayden

Biology Faculty Publications

A very special place in Southwest Virginia will soon expand its borders, thanks in part to the annual fundraising appeal by the Virginia Native Plant Society. The Cedars Natural Area Preserve supports ex ceptional natural communities including rocky, dry limestone glades and woodlands located across nearly 20 square miles in Lee County near the Powell River. The karst landscape, where thin soils develop over easily dissolved limestone bedrock, creates terrain that tends to be rolling, rocky, rugged, and full of sinkholes, caves, and sinking streams. The preserve is a haven for rare plants that have adapted to the mostly thin, …

Montanan, Winter 2015, University Of Montana--Missoula

Montanan Magazine, 1969-2024

This is the magazine of the University of Montana with news about the University for UM alumni as well as current faculty, students, staff, and administrators. This is volume 32, number 1.

Forestry Kaimin, 2014-2015, University Of Montana--Missoula. College Of Forestry And Conservation. Forestry Club

Forestry Kaimin, 1915-2015

Annual yearbook of the University of Montana’s Forestry Student Association (Forestry Club).

2015-2016 Course Catalog, University Of Montana--Missoula. Office Of The Registrar

University of Montana Course Catalogs, 1895-2024

An annual catalog of courses and course descriptions offered at the University of Montana.

Pedagogy Of Curiosity: Initial Explorations Of Instructional Practice In A Critical Thinking And Curious Classroom, Michael Chalukian

Critical and Creative Thinking Capstones Collection

Through research on critical thinking, instructional practice, and curiosity I have developed the Pedagogy of Curiosity. This approach is implemented in the Curious classroom and a workshop for secondary teachers. The Curious classroom creates a structure and focus to encourage and develop curiosity and critical thinking of students. A questioning and research design redefines the learning expectations and the corresponding teacher and student roles in the classroom. An environment is constructed for students to take steps to become autonomous reflective learners.

This synthesis identifies two sources that inform my endeavor: 1) The accountability and results driven focus of No Child …

Climate, Environmental And Socio-Economic Change: Weighing Up The Balance In Vector-Borne Disease Transmission, Paul E. Parham, Joanna Waldock, George K. Christophides, Deborah Hemming, Folashade Agusto, Katherine J. Evans, Nina Fefferman, Holly Gaff, Abba Gumel, Shannon Ladeau

Biological Sciences Faculty Publications

Arguably one of the most important effects of climate change is the potential impact on human health. While this is likely to take many forms, the implications for future transmission of vector-borne diseases (VBDs), given their ongoing contribution to global disease burden, are both extremely important and highly uncertain. In part, this is owing not only to data limitations and methodological challenges when integrating climate-driven VBD models and climate change projections, but also, perhaps most crucially, to the multitude of epidemiological, ecological and socio-economic factors that drive VBD transmission, and this complexity has generated considerable debate over the past 10-15 …

The Effect Of Parental Size On Spermatophore Production, Egg Quality, Fertilization Success, And Larval Characteristics In The Caribbean Spiny Lobster, Panulirus Argus, Mark J. Butler Iv, Alison Macdiarmid, Gaya Gnanalingam

Biological Sciences Faculty Publications

The average size of spiny lobsters (Decapoda; Palinuridae) has decreased worldwide over the past few decades. Market forces coupled with minimum size limits compel fishers to target the largest individuals. Males are targeted disproportionately as a consequence of sexual dimorphism in spiny lobster size (i.e. males grow larger than females) and because of protections for ovigerous females. Therefore, overexploitation of males has led to sperm limitation in several decapod populations with serious repercussions for reproductive success. In the Caribbean spiny lobster, Panulirus argus, little is known about the effect of reduced male size on fertilization success or the role …

Sola Gratia: Grace In The Engineering Curriculum And Profession, Ethan Brue

Faculty Work Comprehensive List

Integral Christian higher education is in vogue. Most Christian institutions of higher education who take their mission seriously make the claim that the education offered to students is one where faith and learning are not separate. It is a belief that their entire educational enterprise is inexorably tied in some way, shape, or form to our new life in Christ. Most engineering programs on Christian campuses are the outgrowth of this perspective. Over the last fifty years, numerous philosophers, writers, scientists, and engineers have developed a solid foundation from which engineering can be understood as an essential calling in the …

The Effect Of Differing Volumes Of Ice Slurry Ingestion During Exercise In The Heat, Kyle R. Cochrane

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Use Of Airborne Digital Imagery To Examine Floodplain Complexity At Varying Discharges, Katelyn P. Driscoll

Graduate Student Theses, Dissertations, & Professional Papers

Floodplains are composed of aquatic and terrestrial habitats that are frequently reshaped by hydrologic processes operating at various spatial and temporal scales. I hypothesized that floodplain habitat complexity is maximized at intermediate discharges because small changes in flow result in substantial aquatic habitat changes and extreme discharges are associated with a decreased habitat heterogeneity. Between April and September 2014, I collected ultra-high resolution digital multispectral imagery of the Clark Fork River, Montana taken on 6 dates between early spring and fall. Following image mosaicking into a single image, unsupervised classification of the spectral reflectance was used to identify and quantify …

“I Need A Hand-Up, Not A Hand-Out:” Spoiled Identities And Identity Maintenance Among Single Mothers Experiencing Homelessness, Laura Obernesser

Graduate Student Theses, Dissertations, & Professional Papers

This research project explores the processes of impression management and identity maintenance through participant observation, informal interviews, and existing documents for an organization that provides services to mothers who are homeless in the Rocky Mountain West. The observations take place in a non-profit organization dedicated to advocating for women in the community and region at three different locations. This project focuses on the complex ways in which mothers who experience severe poverty manage and negotiate their identities when confronted with the often unattainable and contradictory expectations of the cultural ideal of motherhood. These women engage in identity maintenance and emotion …

Ecological Status Of Black-Tailed Prairie Dogs On Boulder, Colorado Open Space And Mountain Parks Land: An Analysis Of Select Indicators, Rachel A. Caldwell

Graduate Student Theses, Dissertations, & Professional Papers

Black-tailed prairie dogs (Cynomys ludovicianus) are ecosystem regulators, significantly influencing the surrounding ecosystem. On Boulder County, Colorado Open Space and Mountain Parks land, and throughout their range, prairie dogs affect a number of ecological functions including plant dynamics and associated animals. The ability of prairie dogs to promote the wellbeing of associated plant and animal species depends on the condition of prairie dog populations. One way to evaluate the current condition of prairie dogs and predict their future impact on the ecosystem is to evaluate the status of prairie dogs in relation to specific indicators. I address the …

Forest Fire Risk Assessment Using Point Process Modeling & Monte Carlo Fire Simulation: A Case Study In Gyeongju, South Korea, Hyeyoung Woo

Graduate Student Theses, Dissertations, & Professional Papers

Forest fire risk assessment becomes critical for developing forest and fire management strategies in Korea since the magnitude of damage from fires significantly increased over the past decades. Fire behavior probability is one of the major components in quantifying fire risk, and is often presented as burn probability. Burn probability estimation requires a proper estimation of fire occurrence probability because fire spread is largely influenced by ignition locations in addition to other environmental factors, such as weather, topography, and land covers.

The objective of this study is to assess forest fire risk over a large forested landscape in and around …

Behavioral Effects Of Fluoxetine On Aggression And Associative Learning In Betta Splendens, Benjamin Eisenreich

Graduate Student Theses, Dissertations, & Professional Papers

While the link between serotonin and the behaviors of aggression and learning has been elucidated, few studies have examined the impact serotonin has on learning for aggressive rewards. In particular, the SSRI fluoxetine has been demonstrated to reduce aggression as well the acquisition of instrumental responding for rewards indicating that this drugs behavioral effect may be related to motivational processes important for learning. To examine the relationship between fluoxetine and motivational process important for learning, two experiments were conducted using Betta splendens, a species well known for their robust aggressive response and drive to engage in aggressive behaviors, to examine …

Capturing The Benefits Of Restoration: Local Business Utilization And Opportunities For Growth In Northwestern Montana, Chelsea P. Mciver

Graduate Student Theses, Dissertations, & Professional Papers

Restoration and maintenance of forests and watersheds is increasingly a focus of management on public lands and, in addition to traditional forest management activities, has the potential to contribute to the economic vitality of local, forest-dependent communities. However, research has shown that the extent to which local communities benefit from restoration and management activities is highly variable. This study seeks to understand whether local communities in northwestern Montana are capturing the benefits of these activities on public lands by analyzing federal contracting trends. Specifically, this study 1) characterizes the value and type of federal contracts along with the spatial distribution …

High-Content Screening In Zebrafish Embryos Identifies Abamectin As A Potent Neurotoxicant, Tara Diane Raftery

Theses and Dissertations

During development, the nervous system is a sensitive target for chemical exposure in both humans and animal models, and early life-stage exposures can lead to long-term effects on motor activity, sensory function, and cognition. Currently, there are minimal to no developmental neurotoxicity (DNT) data available for thousands of chemicals used in commerce, and it is impractical to screen these chemicals in rodent models using the existing DNT test guideline, as this test is costly, time- and animalintensive, and low-throughput. Therefore, there is a recognized need to use alternative non-mammalian models to support screening and prioritization of chemicals for DNT testing, …

The Social Determinants Of Success: The Effect Of Status, Framing, And Group Membership On Test Scores, Jennifer L. Mcleer

Theses and Dissertations

Previous findings have shown that intelligence test scores of members of disadvantaged groups are negatively affected by their relative status in test situations. We explain this by assuming that lower-status actors forego benefits that normally follow from successful performance of a task if they anticipate that there are also costs associated with success. We use an integration of Status Characteristics Theory, Rational Choice Theory, Prospect Theory, and Self-Categorization Theory to argue that compared to high status individuals, those of lower status should be particularly affected by costs associated with high performance. We ran an experiment that manipulated factors such as …

A Hydrographic Climatology Of The Gulf Of St. Lawrence, Alejandro Frank

Theses and Dissertations

The Gulf of St. Lawrence (GSL) is characterized by a general circulation of an estuarine type, where fresher/lighter water flows seaward above saltier/heavier water flowing landward. In an estuarine regime, the inflowing deep layer water compensate for a loss of mass due to the surface layer outflow. A major element of the GSL estuarine circulation is the coastal buoyancy-driven current fed by the St. Lawrence River discharge. In addition, some surface water is advected into the GSL as a branch of the Labrador Current (LC). Recent climatological changes in the North Atlantic have increased the melting rate of the Greenland …

Graphene Based Heterojunctions For Nano-Electronic And Sensing Applications, Md A. Uddin

Theses and Dissertations

Graphene, an atomically thin and semi-metallic two dimensional material, has been extensively researched over the past decade due to its superior intrinsic carrier velocity, electrical and chemically tunable work function, ability to form layered heterostructure with other materials, and relevant potential applications in electronics, sensing, optoelectronics, energy storage, etc. However, the confinement of charge carriers within one atomic layer results in an electrical transport that is extremely sensitive to the surrounding environment, which is beneficial for sensing applications, but at times unfavorable for electronic applications due to scattering from extrinsic impurities. In addition, due to its rather delicate structure, engineering …

Design, Fabrication, And Characterization Of Pseudomorphic And Quasi-Pseudomorphic Algan Based Deep Ultraviolet Light Emitting Diodes Over Sapphire, Fatima Asif

Theses and Dissertations

III-Nitride based deep ultraviolet (UV) light emitting diodes (LEDs) emitting below 280nm has the potential to replace mercury lamps currently used in the systems for water/air purification, germicidal and medical instruments sterilization applications. However, this potential has not yet been fully realized as the output power, quantum efficiency and lifetime of deep UV-LEDs have been limited by the large number of dislocations in the active region of the devices, arising from the lattice mismatched sapphire substrate, which has been the substrate of choice due to its high transparency to deep UV radiation. To reduce dislocations in the active region of …

Alternative Protein Conformations: Yeast Iso-1-Cytochrome C And Heme Crevice Dynamics, Levi James Mcclelland

Graduate Student Theses, Dissertations, & Professional Papers

The field of protein biochemistry has been dominated by the dogma that a protein sequence yields a 3-dimensional structure important for a singular function. More modern insights are beginning to demonstrate that proteins are not static structures. Rather, proteins undergo numerous conformational fluctuations yielding an ensemble of conformational populations. Conformational change can result in changed or altered protein function. Small or large energetic barriers existing between conformers regulate the ease with which a protein can sample alternative conformations. In the dissertation work presented here, alternative conformations of yeast iso-1-cytochrome c are investigated with particular emphasis on heme crevice loop dynamics. …

Chromosomal Rearrangements Directly Cause Underdominant F1 Pollen Sterility In Mimulus Lewisii-M. Cardinalis Hybrids, Angela M. Stathos

Graduate Student Theses, Dissertations, & Professional Papers

Chromosomal rearrangements can contribute to the evolution of postzygotic reproductive isolation directly, by disrupting meiosis in F₁ hybrids, or indirectly, by suppressing recombination among genic incompatibilities. Because direct effects of rearrangements on fertility imply fitness costs during their spread, understanding the mechanism of F₁ hybrid sterility is integral to reconstructing the role(s) of rearrangements in speciation. In hybrids between monkeyflowers Mimulus cardinalis and M. lewisii, rearrangements contain all quantitative trait loci (QTLs) for both premating barriers and pollen sterility, suggesting that they may have facilitated speciation in this model system. I used artificial chromosome doubling and …

Facies, Architecture, And Sequence Stratigraphy Of The Devonian-Mississippian Sappington Formation, Bridger Range, Montana, Anna S. Phelps

Graduate Student Theses, Dissertations, & Professional Papers

The Late Devonian-Early Mississippian Sappington Formation in Montana is a marine unit comprised of lower and upper organic-rich shale members and a middle calcareous siltstone member. The Sappington Formation was deposited during a period of complex paleogeography in Montana, characterized by deposition in sub-basins and onlap onto structural highs, and eustatically- and tectonically-driven transgressive-regressive cycles. Detailed outcrop analysis was conducted on the Sappington Formation across the Bridger Range in southwestern Montana to better understand the Sappington Formation depositional system and changing regional paleogeography. The Sappington Formation is further interpreted in a stratigraphic architectural framework to improve the ability to predict …

Sediment Routing Through Channel Confluences: Particle Tracing In A Gravel-Bed River Headwaters, Kurt Imhoff

Graduate Student Theses, Dissertations, & Professional Papers

Sediment routing in gravel-bed rivers refers to the intermittent transport and storage of bedload particles, where short-duration steps are separated by periods of inactivity. Channel morphology governs sediment routing, but morphologic effects on routing in headwater systems are not well understood compared to lowland systems. RFID tracers are a valuable tool that can be employed to characterize routing processes in headwater channels through individual particle tracking. I present research on coarse sediment transport and dispersion through confluences using sediment tracers in the East Fork Bitterroot River basin, MT. I investigate the following questions: (1) How do sediment routing patterns through …

A Gis Assessment Of Ecoregion Representation In Chile's Existing And Proposed Integrated Network Of Protected Areas, Jessica Schutz

Graduate Student Theses, Dissertations, & Professional Papers

Chile's state designated protected areas are reported to show representation bias and to be unable to meet conservation goals. Private protected areas are considered an important tool to resolve these issues, which has led to support for increasing the role of private protected areas in Chile and creating an integrated public-private protected area network. But the validity of the capacity of private protected areas to fix Chile's state protected area network bias, and the advantage of creating an integrated protected area network, have not been assessed. This study uses the most recent data on Chile's state, private, and international protected …