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Cofermentation, Post-Alcoholic, And Post-Malolactic Fermentation Blending Of Malbec, Merlot And Petite Sirah Wines, Armando Arturo Vega-Osorno

Master's Theses

A two-year study was conducted to assess the effects of cofermentation on red wine varietals. During the winemaking process, wines can be made from two or more varieties by picking, crushing and fermenting them together, a practice known as cofermentation. They can also be blended either after the completion of alcoholic fermentation or after malolactic fermentation. In the first year of the study, two grape varieties, Merlot (Mer), and Malbec (Mal) were cofermented. On the second year, a third varietal, Petite Sirah (PS) was also studied. Cofermented wines containing every possible binomial combination of the varietals was made and one …

Mechanisms Of Substrate Selectivity And Transport By Escherichia Coli Atp- Binding Cassette (Abc) Transporter Metni, Yuchun Chen

Master's Theses

ABC transporters are central in many cellular functions including nutrient uptake, signal transduction membrane assembly, and cellular detoxification. Both structural and functional studies have revealed insights into the high-affinity uptake mechanism of the MetNI methionine ABC transporter. Using the energy from ATP binding and hydrolysis, the MetNI-Q system can import L-Met, D-Met, and other methionine derivatives against concentration gradients. Many mechanistic studies of ABC transporter propose a model in which cognate binding proteins sequester substrates in the periplasm and deliver them to the transporter. In contrast, recent in vivo and crystallographic studies of MetNI-Q suggest that some substrates may be …

Ncaa Di Assistant Coaches' Understanding Of Mental Performance And Mental Health Services, Heather Hill

Master's Theses

The National Collegiate Athletic Association (NCAA) has acknowledged the importance of providing student-athletes with psychological services throughout their athletic careers (NCAA, n.d.). Two vital services for student-athletes are mental performance services that are focused on sport-related issues and mental health services that are centered around personal issues (Sudano & Miles, 2017). Previous literature around mental performance and mental health services has not distinguished between them, making it difficult to understand key stakeholders’ perceptions and knowledge of both mental performance and mental health services. Assistant coaches play an important role in NCAA athletic departments and spend substantial amounts of time connecting …

Synthesis And Analysis Of Short Antimicrobial Peptides: Rr, Rika Igr, And Hq, Kathleen Pierce

Master's Theses

A significant impending threat to the public health system is the rise of multidrug resistant bacteria. An attractive potential option to combat this is antimicrobial peptides (AMPs). AMPs are peptide chains with lengths that range from 10 to 70 amino acid residues that show antimicrobial activity. AMPs tend to have less toxicity than other antibiotic therapies, have a broader range of activity, and have a decreased resistance development by the target cells. Short AMPs are especially attractive due to their stability as well as their ability to penetrate cell membranes. With a wide range of possible AMPs available, further characterization …

Smart Spine Tape: Active Wearable Posture Monitoring For Prevention Of Low Back Pain And Injury, Samuel J. Borda

Master's Theses

Back pain and injury are a global health issue and are a leading cause of work and activity absence. Prevention would not only save those affected from the burden of pain and discomfort, but would also save people from loss of over 290 million workdays annually and save the healthcare system billions of dollars in expenses per year. Successful research and development of a wearable technology capable of comprehensively monitoring spinal postures that are leading causes of back pain and injury can result in prevention of mild to severe back pain and injury for high-risk people. To accomplish this, the …

Age-Based Comparison Of The Motivations, Self-Efficacy, And Quality Of Life In Bariatric Surgery Candidates, Sheena K. Bling

Master's Theses

Overweight and obesity is a worldwide epidemic that is negatively impacting individuals’ health and quality of life. Much research has been conducted regarding the effects of diet and exercise for weight loss, with current research providing evidence in favor of bariatric surgery for severely obese adults and children. The purpose of this project is to understand participants motivating factors, anticipated post-surgery success and anticipated changes in physical, social and mental health. The objectives were to describe participants’ motivations for pursuing bariatric surgery, describe participants level of confidence with postsurgical diet implementation, and compare participants anticipated post-surgery changes in quality of …

Evaluating Traditional And Novel Modalities Of Self-Monitoring In Females With Low-Literacy & Obesity: A Feasibility Study, Anita H. Kelleher

Master's Theses

This study aimed to determine the feasibility of three distinct self-monitoring modalities employed as part of a weight-loss intervention among Spanish- and Mixtec-speaking women with low-no literacy who were overweight or obese (body mass index, BMI> 25). Primary outcomes assessed include self-monitoring adherence, weight, body composition, and diet quality. Participants (n=18) were recruited from the Cal Poly Women and Infants Mobile Health Unit, and contacted if they had a BMI> 25 and did not attend school beyond elementary level (6th grade). Upon enrollment, participants were asked to attend a weekly meeting at which the lifestyle intervention was delivered by a …

Mercury-Mediated Cyclization To 2-Isoxazolines, Abigail Palmer

Master's Theses

The isoxazoline ring has been utilized in many therapeutic agents. For example, it is the key structure in ISO-1, an anti-inflammatory agent with unique anti-Type 1 diabetes activity. There are two primary methods used for the synthesis of isoxazolines: transition metal free cycloadditions and transition metal-mediated cycloadditions and cyclizations. Most transition metal-mediated syntheses employ the use of palladium, gold, silver, or copper complexes as catalysts. The syntheses often require long reaction times and result in low yields with many impurities. In general, mercury-mediated syntheses typically have shorter reaction times and result in products with higher purity. This research investigated the …

Timing Of Metamorphism, Deformation, And Anatexis Of Big Thompson And Poudre Canyon Migmatites, Colorado, Northern Front Range, Matt Ettsen

Master's Theses

The high grade pelitic rocks of the Big Thompson and Poudre Canyons of Colorado’s northern Front Range experienced a complex metamorphic and deformation history. The metapelites consist of knotted biotite gneiss, quartzofeldspathic gneiss, and quartzites that are thought to represent turbidity current deposits in either a fore-arc or back-arc basin as recently as ~1755 Ma. The rocks were significantly deformed and metamorphosed during the Yavapai Orogeny (~1.71-1.68 Ga) and intruded by Paleoproterozoic granitoids of the Routt Plutonic Suite. They were then later intruded by 1.4 Ga granites of the Berthoud Suite. The Big Thompson Canyon preserves a set of index …

Using Portable X-Ray Fluorescence To Predict Physical And Chemical Properties Of California Soils, Micaela D. Frye

Master's Theses

Soil characterization provides the basic information necessary for understanding the physical, chemical, and biological properties of soils. Knowledge about soils can in turn be used to inform management practices, optimize agricultural operations, and ensure the continuation of ecosystem services provided by soils. However, current analytical standards for identifying each distinct property are costly and time-consuming. The optimization of laboratory grade technology for wide scale use is demonstrated by advances in a proximal soil sensing technique known as portable X-ray fluorescence spectrometry (pXRF). pXRF analyzers use high energy Xrays that interact with a sample to cause characteristic reflorescence that can be …

Topo-Climatic Effects Of Fuel Loading In Ponderosa Pine (Pinus Ponderosa) Forests Of The Colorado Rocky Mountains, Justin Yow

Master's Theses

A key restoration focus is the mitigation and prevention of intense wildfires. This is done using a regularly prescribed fire regime and forest thinning practices to reduce surface fuel loads. Prediction of fuel loads at the forest floor is pivotal when assessing the hazard level a forest fire may present. Scientists already have much data correlating fuel characteristics to fire effects and behavior. However, links between montane climate variability and relative effects on fuel load characteristics have not been extensively explored in the Front Range and southwestern Colorado. This study system was uniquely located along a North-South monsoonal gradient and …

The Role Of Speech-Language Pathologists In Trauma-Informed Practices: Feelings, Attitudes, And Reported Behaviors Of Colorado School Speech-Language Pathologists, Kallie Haritopoulos

Master's Theses

Research indicates that a majority of children in the United States will be exposed to at least one traumatic event before they turn 18, and some children experience multiple forms. Trauma can cause various adverse effects in physical, cognitive, linguistic, behavioral, social, and emotional functioning, which can affect educational performance and success. Despite the increased chance that children who have experience trauma will receive speech and language services, research surrounding trauma-informed practices predominantly focus on the role of general education teachers and mental health professionals. This qualitative study aimed to understand the feelings, attitudes, and reported behaviors of five Colorado …

Understanding Species Boundaries Between Penstemon Acaulis And Penstemon Yampaensis: Implications For Conservation And Management, Juliet Simpson

Master's Theses

Effective conservation management relies upon accurate taxonomic information and an understanding of the genetic health and population structure for each species. Penstemon acaulis and P. yampaensis are endemic species to Colorado, Utah, and Wyoming, and have been considered for listing under the Endangered Species Act (ESA). There is little biological data published about either and there remains taxonomic uncertainty surrounding the two. Phylogenetic analyses showed P. acaulis and P. yampaensis to be distinct, monophyletic lineages and morphological data further supported taxonomic recognition of both species, however these results did not support the previous species boundaries. Eastern populations of P. acaulis …

A Bioarchaeological Investigation Of The Courtney-Anderson Cemetery, Lauren Scott

Master's Theses

Located in Perry County, Mississippi, the Anderson Family Cemetery represents an abandoned turn-of-the-century Piney Woods cemetery. The cemetery is located on land once owned by the Courtney and Anderson families, who farmed the area until it was taken under eminent domain by the United States government in 1942. The purpose of this thesis is to present three osteobiographies created from human remains and material culture recovered from three graves excavated from within the cemetery in 2022 to explore the lifeways of rural Piney Woods families of Mississippi at the turn-of-the-century.

Among the graves explored, one did not contain evidence of …

Fabrication Of Lab-Scale Polymeric And Silicon Dioxide Nanoparticle-Enabled Thin Film Composite Reverse Osmosis Membranes For Potable Reuse Applications, Timothy J. Dinh

Master's Theses

Reverse osmosis (RO) is widely used for water reclamation and is one of the most feasible technologies for addressing water scarcity around the world. RO membrane fabrication procedures are continually being optimized and modified to enhance the treatment performance and efficacy of the RO process. A review of the existing literature published on membrane fabrication revealed that a detailed and reproducible methodology consistent among prior studies was not available. Therefore, the primary objective of this study was to utilize techniques from prior research to develop a reliable lab-scale membrane fabrication process for studying the potable reuse applications of TFC RO …

Deep Learning For Detecting Trees In The Urban Environment From Lidar, Julian R. Rice

Master's Theses

Cataloguing and classifying trees in the urban environment is a crucial step in urban and environmental planning. However, manual collection and maintenance of this data is expensive and time-consuming. Algorithmic approaches that rely on remote sensing data have been developed for tree detection in forests, though they generally struggle in the more varied urban environment. This work proposes a novel method for the detection of trees in the urban environment that applies deep learning to remote sensing data. Specifically, we train a PointNet-based neural network to predict tree locations directly from LIDAR data augmented with multi-spectral imaging. We compare this …

Infidelity And The Bioecological Protective Factors For Mental Health: A Longitudinal Investigation, Lindy Williams

Master's Theses

Infidelity is an important topic of research due to the profound effects on the individual experiencing the trauma. Through the lens of bioecological systems and betrayal trauma, the impact of infidelity on mental health is examined in relation to the most proximal systems to an individual which include personality traits such as agreeableness and neuroticism as well as support from friends, family, and community. This research explores the hypotheses that more support leads to more positive mental health outcomes after the experience of infidelity and the possibility that support from friends, family, and community may buffer specific personality traits and …

Investigation Of Dead Ocean Quahogs (Arctica Islandica) Shells On The Mid-Atlantic Bight Continental Shelf, Alyssa Leclaire

Master's Theses

Ocean quahogs, Arctica islandica, are a long-lived, widely dispersed, biomass dominate in the Mid-Atlantic; therefore, quahog shells are valuable resources for studying climate change over time. Recently, dead ocean quahog shells were discovered south and inshore of the present biogeographic range of this animal. The presence of ocean quahog shells outside the current range is presumably a consequence of past regressions and transgressions of the Cold Pool, the bottom-trapped, cool body of water that allows boreal animals to live at lower latitudes. Dead ocean quahog shells were collected offshore of the DelMarVa Peninsula then radiocarbon-dated, evaluated for taphonomic condition, …

Reinforcement Actor-Critic Learning As A Rehearsal In Microrts, Shiron Manandhar

Master's Theses

Real-time strategy (RTS) games have provided a fertile ground for AI research with notable recent successes based on deep reinforcement learning (RL). However, RL remains a data-hungry approach featuring a high sample complexity. In this thesis, we focus on a sample complexity reduction technique called reinforcement learning as a rehearsal (RLaR), and on the RTS game of MicroRTS to formulate and evaluate it. RLaR has been formulated in the context of action-value function based RL before. Here we formulate it for a different RL framework, called actor-critic RL. We show that on the one hand the actor-critic framework allows RLaR …

Population Genetics Of Cownose Rays, Rhinoptera Spp. In The Western Atlantic, Helen Weber

Master's Theses

Using molecular tools (e.g., the NADH subunit II mitochondrial gene), this study was the first to document the Brazilian cownose ray, Rhinoptera brasiliensis, within the northwestern Atlantic (NWA), and was the first study to examine population structure in R. brasiliensis within the NWA or northern Gulf of Mexico (GMX), revealing novel insights into the population biology of the animal and extending its range by nearly 1,500 km. This study also examined the sympatrically occurring American cownose ray, R. bonasus, and found population structure between the NWA and the GMX and the NWA and the southwestern Atlantic (SWA). High …

Relationship Among Department Satisfaction, Training, And Police Behavior, Matthew Garvin

Master's Theses

The call for police reform has been sparked by incidents involving the shooting and killing of individuals by the police. Public and political scrutiny of police behavior and procedures has created a social identity of “Us Versus Them” mentality among police officers. Proactive policing strategies have diminished in response to the heightened scrutiny of police procedures and behavior, in turn, initiating a reduction in police protection and an increase in crime. While research has identified the importance of police presence, the literature does not yet answer questions regarding factors which influence police proactivity. To address the gap in understanding, this …

Evolving Deforestation Narratives In Practice: A Study Of The Un-Redd+ Readiness Programme In Nigeria, Stuart Clive Blackwell

Master's Theses

The UN-REDD+ Readiness Programme was conducted between 2009 and 2015. The REDD+ Programme in Nigeria began once the readiness program was completed. This study conducts a document analysis of the program utilizing a political ecology lens to determine the extent to which the program adheres to or strays away from critical narratives surrounding both drivers of deforestation and inclusion and autonomy of federal, state, and local communities. By examining the entirety of the available documentation of the REDD+ Readiness program in Nigeria using a political ecological lens, this study demonstrates both an evolution of the program itself, and an evolution …

The Impact Of Environmental Variability On Perceptions Of Parental Ability From Bodily Cues, Kaitlyn Boykin

Master's Theses

This study aimed to extend work considering how bodily cues appear diagnostic of parental ability. I examined body adiposity and sexually dimorphic features for women (i.e., breast size) and men (i.e., muscularity). I further considered how salience of resource scarcity might heighten perceptions of a potential mate as an effective parent when possessing features that connote underlying resource availability (e.g., body fat). Participants were primed with resource scarcity or a control condition before assessing parental affordances of female and male targets. Targets were orthogonally manipulated to possess high and low levels of adiposity. Female targets were manipulated for breast size …

Tropical Cyclone Storm Surge Detection In Slash Pine Radial Growth Along The Northern Gulf Of Mexico Coastline, Alyssa C. Crowell

Master's Theses

My thesis examines the ecological impact of tropical cyclone (TCs) storm surge on coastal slash pine (Pinus elliottii var. elliottii Engelm) communities along the Gulf of Mexico in the southern United States (U.S.). Previous research has shown slash pine radial growth trends can be examined to identify long and short-term growth changes associated with TC passage, providing insight into overall stand health and resiliency through time. However, this previous research encompasses just one site in Mississippi. My thesis expands the spatial footprint of TC-surge impact on slash pine radial growth with the addition of three new sites.

I examined …

Disturbance Ecology Of The Sonadora River Rock Pool Insect Assemblage At Luquillo Experimental Forest, Puerto Rico, Patrick Gilkey

Master's Theses

Freshwater rock pools can serve as habitat for aquatic insects. Flash-flooding can have profound effects on insect communities in streams and rivers, but these effects have not been studied on freshwater rock pools. The goal of this thesis was to describe ecological patterns of the Sonadora River rock pool insect community at the Luquillo Experiment Forrest, Puerto Rico, specifically in response to intense flash-flooding, and then perform experiments to elucidate possible processes to explain those patterns. The rock pools contained primarily three taxa of Dipteran (true-fly) larvae, in order of decreasing abundance, 1) a newly discovered species of ceratopogonid (biting …

Psychosocial Maturity And Alcohol Outcomes: The Mediating Role Of Alcohol Protective Behavioral Strategies, Skyler Hoover

Master's Theses

The present study evaluated the mediating role of alcohol protective behavioral strategies on the relationship between temperance, responsibility, perspective (i.e., the facets of psychosocial maturity) and alcohol use outcomes. Potential invariant paths among graduate and undergraduate students were also explored. All participants were undergraduate and graduate students at the University of Southern Mississippi aged 18 to 25. Participants reported demographic information and completed measures of temperance, responsibility, perspective, alcohol use, and alcohol consequences. Results indicated the full mediation model showed poor fit the data; greater temperance predicted greater alcohol protective behavioral strategy use, greater responsibility and perspective predicted less alcohol …

Evaluating The Effects Of Mindfulness Practice On Attentional Control And Episodic Memory, Jacob M. M. Namias

Master's Theses

Mindfulness refers to a mental state of being that involves nonjudgmental acceptance of current cognitions and emotions with awareness of the present moment. Researchers and clinicians have shown the efficacy of mindfulness as a treatment for psychological disorders such as anxiety and depression and have found reductions in reported stress. Building on clinical benefits, mindfulness practice may also facilitate attentional processes as practitioners are required to inhibit distracting thoughts and re-direct their focus to the present moment. My thesis examined the relationship between mindfulness practice and attentional control and potential spillovers to episodic memory. Experiment 1 gauged the relationship between …

Efficacy Of Chemical And Biological Stump Treatments For The Control Of Heterobasidion Occidentale Infection Of California Abies Concolor, Adrian Luis Poloni

Master's Theses

We conducted an experimental evaluation of treatments to limit Heterobasidion occidentale infection of white fir (Abies concolor) stumps and wounds in California mixed conifer forests. We tested the efficacy of urea, borate, and a mixture of two locally collected Phlebiopsis gigantea strains in preventing pathogen colonization of fir stumps and separately, urea and borate as infection controls on experimental stem wounds. These were paired with a laboratory test on ~100 g wood blocks with and without a one-week delay between inoculation and treatment. Urea, borates, and Phlebiopsis treatments all significantly reduced the stump surface area that was colonized …

Comparing Learned Representations Between Unpruned And Pruned Deep Convolutional Neural Networks, Parker Mitchell

Master's Theses

While deep neural networks have shown impressive performance in computer vision tasks, natural language processing, and other domains, the sizes and inference times of these models can often prevent them from being used on resource-constrained systems. Furthermore, as these networks grow larger in size and complexity, it can become even harder to understand the learned representations of the input data that these networks form through training. These issues of growing network size, increasing complexity and runtime, and ambiguity in the understanding of internal representations serve as guiding points for this work.

In this thesis, we create a neural network that …

Measuring Accessibility For Pedestrians, Bicyclists, And Transit Riders To Grocery Stores In The Excelsior/Outer Mission Neighborhoods Of San Francisco, Alexandra Lee-Gardner

Master's Theses

Grocery stores are an important amenity in neighborhoods and access to grocery stores is important for health and well-being. While grocery store accessibility is a popular topic of research, studies measuring access for pedestrians, bicyclists, and transit riders are extremely rare. When a new store opened in the Excelsior/Outer Mission districts of San Francisco on a street lacking basic infrastructure for pedestrians, bicyclists, and transit riders, the importance of this study became apparent. The Excelsior/Outer Mission neighborhood has a shocking number of collisions (over 1,100 between 2015 and 2019), elevated levels of walking, biking, and transit ridership, and minimal safe …