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A Human-Environment Systems Approach To Outdoor Recreation, Human Biological Stress, And Landscape Aesthetics, Ellie Dawn Opdahl

Boise State University Theses and Dissertations

Outdoor recreation, as the intersection between physical exercise and nature, provides a multitude of psychological and physiological benefits to human well-being. Though many studies have reported qualitative stress reduction from outdoor recreation, few have focused on quantitative measurements of stress across recreational activity types, intrapersonal differences, and environmental variables. To determine whether outdoor recreation affects physiology, we collected 190 paired salivary cortisol and testosterone samples and 157 surveys from 88 hikers, 81 mountain bikers, and 44 off-highway vehicle (OHV) motorists. After recreation, cortisol concentrations were significantly reduced in hikers and OHV motorists, but cortisol and testosterone concentrations increased in mountain …

An Analysis Of The Impact Of Birthing Practices On Long-Term Health And Reproductive Outcomes From The 1970 British Cohort Study: Insights From Evolutionary Theory, Elizabeth Turner

Boise State University Theses and Dissertations

A wealth of research has been amassed and continues to grow through efforts to understand the complex nature of the relationship between the colonization and development of the human gut microbiota, its influence on the development of the immune system, and its role in both health and disease. Since previous research has demonstrated early life conditions can influence the colonization and development of the human gut microbiota, it is critical to understand how circumstances around the birthing process affect long-term outcomes beginning at this crucial stage in our development. Using the 1970 British Cohort Study, this thesis examines the relationship …

Remote Sensing For Management Of Invasive Plants In Great Lakes Coastal Wetlands, Matthew James Unitis

Boise State University Theses and Dissertations

Great Lakes coastal wetlands are some of the most crucial ecosystems to biodiversity in the Great Lakes Basin, yet suffer increasing degradation due to invasive plants. Wetland plant invasions can be controlled in their initial stages, but early detection of invasive plants using field surveys are often untenable due to budget constraints. Remote sensing techniques offer solutions to management objectives during the early stages of invasion on a landscape scale due to their ability to cheaply create spatially explicit information about plant distributions. Some invasive plants, such as Typha x. glauca, are conspicuous on a large scale, and can be …

Investigations Into Factors Affecting The Wpd-Loop In The Protein Tyrosine Phosphatases Yoph And Ptp1b, Gwendolyn Moise

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The research in this dissertation documents connections between the primary amino acid sequence of proteins, the dynamics of proteins, and their catalytic function. This research project studied two proteins called protein-tyrosine phosphatases (PTPs): the human enzyme PTP1B, and the bacterial enzyme YopH. PTP1B is a human enzyme that down regulates the insulin receptor on the outer cellular membrane, and causes the insulin receptor to be less responsive to insulin. A deeper knowledge of how PTP1B is different from other human PTPs might be useful in designing drugs to increase insulin sensitivity in diabetics. Yersinia Pestis is the bacteria that caused …

Development And Optimization Of A Produced Water, Biofilm Based Microalgae Cultivation System For Biocrude Conversion With Hydrothermal Liquefaction, Benjamin L. Peterson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extraction of oil and gas in Utah’s Uintah Basin results in large quantities of wastewater, or produced water, with nutrients and residual organic chemical that represent a significant resource for producing energy-related and value-added products. Produced water was obtained as a biomass producing nutrient source from industries operating in Utah’s Uintah Basin. Within the Uintah Basin (defined as Uintah and Duchesne Counties within Utah) approximately 93 million barrels of water were produced in 2013 while only 11% of the water was disposed of through evaporation, with the national average at 2%. The rest is reinjected into the subsurface.

The goal …

Novel Methods To Produce Large Recombinant Spider Silk Proteins Via Polymerization, Nathan L. Hebert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Spider silk has long been a subject of scientific research due to its remarkable mechanical properties. Until recently, there has been no way to effectively obtain spider silk except by harvesting it from individual spiders. With advances in technology, the genes that code for the individual spider silk proteins have been isolated and genetically engineered into other hosts to produce recombinant spider silk proteins (rSSp) of varying sizes, Larger rSSp have correspondingly greater mechanical properties in any resulting materials. Using current production methods, larger rSSp cannot be produced in commercially viable quantities while simultaneously being economically viable. The current production …

Chronic Migraines And Couples: A Grounded Theory Of Adaptation To Chronic Migraines For Patients And Their Partners, Douglas P. Mcphee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was completed to better understand and treat couples wherein one partner suffers from chronic migraines. I interviewed eight couples about their experiences in dealing with migraines as a patient, as a partner, and together. The interviews were transcribed and analyzed by a team of seven researchers. We developed a theory that can be used to understand how patients and their partners adapt to chronic migraines. The theory was grounded in the experiences of the patients and partners who were interviewed. We found that patients and partners alike dealt with burdens and costs associated with chronic migraines. Coping, healthcare, …

Composition Of The Community Of Small Mammals In The Great Basin Desert, Samantha Elizabeth Phillips

Theses and Dissertations

Small mammals are a keystone guild in arid ecosystems; often exhibiting top-down control of the diversity and structure of plant communities. However, changing climate, shifting fire regimes, and the invasion of exotic plants are modifying the structure of arid systems. Environmental changes in these arid systems are likely altering small mammal communities, and therefore, their ecological role. We examined two aspects of the community composition of small mammals in the Great Basin: changes in community composition since large scale sampling of the region began in 1930, and the current population of a sensitive species of small mammal, the dark kangaroo …

Neuroimmune-Mediated Alcohol Effects On Ventral Tegmental Area Microglia And Infiltrating Leukocytes, Travis Jonathan Clarke

Theses and Dissertations

Microglia are the primary immune cell in the central nervous system and are known as the “resident” macrophages in the central nervous system (CNS). While microglia are classically known as the immune cells of the CNS, their role has more recently been shown to extend far beyond immunity. The effects of ethanol on the brain are closely linked to neuroimmune responses mediated by microglia that are present in the healthy brain from the time of development. Though microglia have been classified as the “resident” immune cells of the CNS, new research suggests that other immune cells may be implicated in …

A Graph Theoretical Analysis Of Functional Brain Networks Related To Memory And Healthy Aging, Ty Alvin Bodily

Theses and Dissertations

The cognitive decline associated with healthy aging begins in early adulthood and is important to understand as a precursor of and relative to mild cognitive impairment and Alzheimer disease. Anatomical atrophy, functional compensation, and network reorganization have been observed in populations of older adults. In the current study, we examine functional network correlates of memory performance on the Wechsler Memory Scale IV and the Mnemonic Discrimination Task (MST). We report a lack of association between global graph theory metrics and age or memory performance. In addition, we observed a positive association between lure discrimination scores from the MST and right …

The Academic Impact Of Suspension On Black Male Students In An Urban High School, Sandy Hattar

Education Doctoral

The focus of this research was the academic impact of school suspension on Black male students in an urban high school. Findings for the study were derived from archival data retrieved with permission from the school district that served as the site of the study. The performance of 400 Black male students in the 2015 cohort of eight high schools on the New York State Algebra Regents exam was analyzed to determine whether suspension from school affected achievement as measured by the passing score on an exam which determined successful high school completion and academic success. The implications of these …

An Examination Of Planning And Implementing Brain-Based Strategies In The Elementary Classroom, Gina Ditullio

Education Doctoral

Brain-based learning can positively impact student motivation, attitudes and academic achievement. Much of the research is situated in a quantitative paradigm designed to measure motivation, attitudes toward learning, and academic achievement. The purpose of the study was to investigate the extent to which teachers are aware of brain-based learning theory and applying the concepts of the theory to their teaching. The qualitative study utilized brain-based learning theory as a research framework. The study employed a semi-structured, face-to-face interview method to gain a better understanding of what information teachers currently know about brain-based learning and what they need in order to …

B. R. Wells Arkansas Rice Research Studies 2017, R. J. Norman, K. A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

The Relationship Between Right-Wing Authoritarianism & Support For Military Action Among Millennial Voters, Jessica A. Nemet

Student Theses

This thesis examined the relationship between Right-Wing Authoritarianism (RWA) and Militarism among millennial students at John Jay College. Previous studies have already suggested a relationship between RWA, heightened perceived individual or communal threat, and aggressive attitudes – especially towards outsiders. Confirmatory Factor Analysis was used to gauge the level of authoritarianism and that was endorsed by each subject and these RWA factor scores were contrasted between participants who endorsed Militarism as a viable U.S. foreign policy tactic and those who did not. Consistent with our hypothesis, results suggest that individuals who supported militarism as a viable means to solving international …

The Relation Between Dbt Skills Training And Attitudes Towards Individuals With Bpd, Kenny Gonzalez

Student Theses

Attitudes towards individuals with BPD are generally pessimistic (Cleary, Siegfried, & Walter, 2002; Fraser, 2001; McIntosh, 1998). Training as an intervention, in the form of different theoretical orientations, has been shown to improve attitudes among mental health professionals. However, few studies (Fraser, 2001; Hazleton et al., 2006; Carmel, Fruzzetti, & Rose, 2014) have investigated whether Dialectical Behavior Therapy (DBT; Linehan, 1991) can improve attitudes towards individuals with Borderline Personality Disorder (BPD). The current study was conducted at a 3-day DBT skills training workshop and sought to examine the impact of DBT skills training on attitudes towards individuals with BPD. Using …

Spatial Distribution And Stock-Recruitment Analysis Of The Atlantic Surfclam, Spisula Solidissima, In The Mid-Atlantic Bight And On Georges Bank, Jeremy Timbs

Master's Theses

Atlantic surfclams, Spisula solidissima, are long-lived bivalve molluscs with dispersive larval stages. Surfclam patchiness throughout the U.S. Exclusive Economic Zone (EEZ) has declined from the 1980’s to the present in all assessed regions (Delmarva, New Jersey, Long Island, Southern New England, and Georges Banks). Warming of Mid-Atlantic bottom waters is driving the surfclam stock into new habitat and extirpating the surfclams from nearshore areas. Based on a species distribution function model, the small surfclams appear to inhabit a greater area than the large market-size surfclams across the entire stock. The wider distribution of recent recruits relative to the fishable …

A Cholera Model Linking Between-Host, Within-Host And Environmental Disease Dynamics, Conrad Ratchford

Masters Theses and Doctoral Dissertations

Cholera is an acute intestinal illness caused by infection with the Vibrio cholerae bacteria. The dynamics of the disease transmission are governed by human-human, environment-human, and within-human sub-dynamics. In this paper, a model is presented to incorporate all three of these dynamical components. The model is divided into three subgroups where the dynamics are analyzed according to their respective time scales. Specifically, the within host system incorporates the interaction of virus and immune cell interaction with the vibrios. For each subgroup, we discuss the existence and uniqueness of a DFE (Disease Free Equilibrium) by calculation of the Basic Reproduction number …

Development And Assessment Of Predictive Spatial Models For A Rare Tennessee Anuran: Barking Treefrog (Hyla Gratiosa), Nyssa R. Hunt

Masters Theses and Doctoral Dissertations

In Tennessee, the Barking Treefrog (Hyla gratiosa) is listed as both rare and vulnerable, and more field data is needed to elucidate its distribution. Predictive modeling using the program MaxEnt provided results for models that guided field sampling to potential presence locations. From April-August 2017, 126 sites (63 historical; 63 predicted) were visited monthly and sampled for frog calls according to a standardized protocol. Field results revealed H. gratiosa’s auditory presence at 23 out of 63 historic sites and at nine out of 63 predicted sites. While other predictive models were also generated, MaxEnt was demonstrated to be most precise …

Inferences About The Conservation Utility Of Using Unmanned Aerial Vehicles To Conduct Rapid Assessments For Basking Freshwater Turtles, Kelly Daniels

Masters Theses and Doctoral Dissertations

Unmanned aerial vehicles (UAVs), an emerging technology, show promise in ecological research. In this comparative study, I compare UAVs to a traditional sampling method, observations using spotting scopes. UAVs have yet to be used successfully for sampling freshwater turtles; however, they have been used with mixed success for monitoring mammals and birds. Herein, I propose that the conservation utility of UAVs be formally assessed in the field prior to them being used to make adaptive conservation and management decisions. I quantitatively and qualitatively evaluate the use of UAVs using a mixed methods approach in contrast to a proven field method …

Prevalence Assessment Of The Amphibian Chytrid Fungus Batrachochytrium Dendrobatidis Across Two Habitat Types In East Tennessee, Paul-Erik M. Bakland

Masters Theses and Doctoral Dissertations

In light of the biodiversity crisis facing amphibian populations globally, studies investigating the pathogenic amphibian fungus Batrachochytrium dendrobatidis (Bd) are a foremost priority for biologists. Understanding effects of habitat variation on Bd prevalence is important for identifying populations that are most at risk and can help to inform management decisions. Using American Bullfrogs (Lithobates catesbeianus) and Green Frogs (Lithobates clamitans) as study organisms, this research sought to investigate how prevalence of Bd varies between natural wetlands and urban retention ponds in East Tennessee while also examining relevant habitat factors and morphometrics. A total of 373 frogs were sampled across six …

Synthetic And Theoretical Studies For Cyclization Reactions To Form C-C And C-N Bonds, Nicholas Jentsch

Dissertations

Natural product total synthesis provides an alternative method for obtaining medicinally relevant compounds in a more efficient process with higher yields than what nature can provide. Natural products pose significant synthetic challenges due to the unique heterocyclic skeletons with fused and spirocyclic ring systems. Therefore, it is paramount to develop efficient reaction methodologies targeting substructures such as cyclic ureas and spiro[4.5]decanes which are prominent among marine natural products and Lycopodium alkaloids, respectively. Presented here is a compilation of research seeking to develop synthetic methods for the construction of cyclic moieties such as those previously mentioned. The objectives that are addressed …

Managing Herbicide Resistance: Listening To The Perspectives Of Practitioners. Procedures For Conducting Listening Sessions And An Evaluation Of The Process, Jill Schroeder, Michael Barrett, David R. Shaw, Amy B. Asmus, Harold Coble, David Ervin, Raymond A. Jussaume Jr., Micheal D. K. Owen, Ian Burke, Cody F. Creech, A. Stanley Culpepper, William S. Curran, Darrin M. Dodds, Todd A. Gaines, Jeffrey L. Gunsolus, Bradley D. Hanson, Prashant Jha, Annie E. Klodd, Andrew R. Kniss, Ramon G. Leon, Sandra Mcdonald, Don W. Morishita, Brian J. Schutte, Christy L. Sprague, Phillip W. Stahlman, Larry E. Steckel, Mark J. Vangessel

Plant and Soil Sciences Faculty Publications

Seven half-day regional listening sessions were held between December 2016 and April 2017 with groups of diverse stakeholders on the issues and potential solutions for herbicide-resistance management. The objective of the listening sessions was to connect with stakeholders and hear their challenges and recommendations for addressing herbicide resistance. The coordinating team hired Strategic Conservation Solutions, LLC, to facilitate all the sessions. They and the coordinating team used in-person meetings, teleconferences, and email to communicate and coordinate the activities leading up to each regional listening session. The agenda was the same across all sessions and included small-group discussions followed by reporting …

Generational Status And Views On Nonconforming Gender Expression Among Individuals Of Mexican Origin, Bianca C. Lopez

Theses and Dissertations

Despite recent change of perspectives and an increase of acceptance of gender nonconformity, the concept of gender still remains a controversial topic. Gender continues to be a developing idea and maintains an influential role in many cultural contexts. Examining facets of gender in various settings can perhaps enlighten our comprehension of such and a further understanding of those who express gender nontraditionally. This study examines the concept of gender in a less traditional stance, exploring views of non-conforming gender expression among generations of Mexican Americans and individuals of Mexican origin. Through analysis of survey data on views of gender nonconformity …

Questing Activity Of Cattle Fever Tick Larvae, Rhipicephalus (Boophilus) Microplus (Acari: Ixodidae): Environmental Influences And Implications For Control In South Texas, Brenda Leal

Theses and Dissertations

Questing ticks ascend stems, leaves, or rocks, extend their front legs, and wait poised for attachment to a passing host. Ixodid ticks have four developmental stages. Because ticks detach and molt between stages most ticks require three separate hosts to complete their lifecycle. Three-host ticks quest for a new host between each stage, whereas a few specialist tick species remain on and thus require only a single host. These one-host ticks only quest for hosts as larvae. As much as 90% of the life cycle may consist of questing when hosts are scarce. Most of the literature on questing relates …

Characterizing Polychlorinated Biphenyl Degradation Potential In Surface Water Bacteria From Rio Grande Valley, Texas Reservoirs, Alisha M. Janiga

Theses and Dissertations

The Donna Reservoir in Donna, Texas is contaminated with polychlorinated biphenyl (PCB) pollution. This reviews the current understanding of PCBs and investigate the potential of PCB degradation by native bacteria communities in the Donna Reservoir. The metabolic diversity, biphenyl tolerance, bphA1 presence were tested on surface water samples from the Donna Reservoir. The Ecoplate data suggest that the communities have a diverse metabolic capacity and the degree of plant life may interact with carbon type metabolism but not the rate of growth. Biphenyl growth curves showed that all the samples from the Donna Reservoir are tolerant to the average PCB …

Improving The Active Straight Leg Raise By Active And Passive Partner Assisted Stretching, Cortney R. Payne

Theses and Dissertations

The Functional Movement Screen has been a very popular tool for assessing athlete’s movements and predicting future risk of injury. In the hierarchy of this screen, the active straight leg raise reigns supreme. They have shown that improvements in this movement correlate to improvements in other movements but not vise versa. It is important to find a way to quickly improve this functional movement, so it can be utilized in group settings to help potentially reduce the risk of injury in athletes. The findings of this study will serve to be valuable in sports injury and improvement in performance. The …

If We Are To Believe In America, Mitchell Nobis

Language Arts Journal of Michigan

Abstract: Many school districts call on teachers to engage in culturally responsive teaching and social-emotional learning, but at the same time, teachers are often told to remain apolitical. This narrative essay argues that English language arts teachers must consciously and carefully undertake political pedagogy because it is impossible not to do so. Everything is political, including ethical teaching.

Environmental Conditions In San Martin Lake: Effects Of Eutrophication In An Estuary Associated With The Laguna Madre, Wendy L. Rogers

Theses and Dissertations

San Martin Lake is a shallow water Estuary in the lower Laguna Madre off the Port of Brownsville Shipping channel. It is influenced both by incoming tides and waste water runoff both from local farms and the Brownsville water treatment plants. The resulting mixture of eutrophic water and incoming sea water creates the perfect mix for a potential algal bloom. This study looks at the nutrient levels and environmental conditions in the main basin of the estuary to establish baseline levels and to observe the rate of nutrient clearing being accomplished in this environment. As sport recreation in the area …

Survey Assessment Of Community Knowledge And Prevention Of Chagas Disease And Its Vector In Hidalgo And Cameron Counties, Adam Dennis Wiejaczka

Theses and Dissertations

Chagas disease, caused by the parasite Trypanosoma cruzi, kills thousands of people annually and is the dominant cause of infectious myocarditis worldwide. Kissing bugs are vectors that carry T. cruzi . and are found in the Lower Rio Grande Valley (LRGV). There is no vaccination nor cure for Chagas. The best mechanism of prevention is to control vector infestations. Little research is available regarding the level of understanding local communities have about Chagas.

Our goal was to test the knowledge of several communities in the LRGV on Chagas disease. Our hypothesis states that local communities do not have sufficient …

Adaptive Water Governance And Community Resilience: Assessing The Impact Of The Cache River Wetlands Joint Venture Partnership On Communities In The Cache River Watershed Of Southern Illinois, Rachel Emeline Boucher

Theses

Resilience is a concept that is becoming heavily researched in the sustainability and resource management literature. For rural resource-dependent communities, community resilience is the ability to adapt to various drivers of change while maintaining or enhancing community well-being. In recent decades, the field of water resource governance has been transitioning from a reliance on command-and-control institutional structures toward adaptive multi-level institutions, such as adaptive co-management and adaptive governance. These transitions offer potential opportunities for enhancing the resilience and sustainability of resource-dependent communities. However, the relationship between these emerging governance approaches and community resilience is not fully understood. The Cache River …