Digital Commons Network^™

Optimization Of Cmos At Deep Cryogenic Temperatures, Prabjot K. Dhillon

Master's Theses

Cryogenic CMOS is a sought-out technology because of its applications to fields like quantum computing and deep space exploration. Though slight advancements have been made within the field of cryogenic CMOS technology, there persists critical challenges that need to resolve to further advance the field. Hence, there is a need to solve challenges like understanding the undesirable effects due to the device physics at cryogenic temperatures such as high threshold voltage, kink-effects, abnormal subthreshold swing etc. and developing reliable circuit models because many rely on analytical modeling. The research models a NMOS ON-current and subthreshold slope at temperatures of 300K …

Formal And Informal Styles Of Clothing In The Assessment Of Female Political Candidates, Erma Kurtovic

Master's Theses

Abstract: This study will research the importance of dress code of female candidates on the confidence in leadership.The research question is: How Important is the Formality of Dress Code in the Assessment of Leadership of Female Political Candidates? It is addressed by using an experimental design carried out in India and the United States, using Qualtrics and Amazon Mechanical Turk. This research gathered 400 responses, 200 from each country. Primary data collection was used, with the implementation of two experiments. The experimental design of the two experiments consisted of two conditions, one in which the main political candidate is dressed …

Inaccessible Interpolated Imagery: How Coffee Farmers In The State Of Chiapas Might Access Political Economic Opportunity Through Representation, Paolo Fiann Bicchieri

Master's Theses

Here is a useful parable to boil down the idea of this project and set the tone: when one goes to the bar to tell a story about a fight at the bar, they would never venture to place themselves as the hero of the brawl, taking out three drunkards in a single punch, unless they were really in the bar, at that time, fighting a good fight. One would never do this as the bartender, locals, and regulars would all know if this were the case or not. Yet transnational corporations, governments, and even consumers do this all the …

Understanding The Effects Of Temperature On Electrostatic Dna Denaturation, Jeffrey Taylor

Master's Theses

In this work, the electrostatic denaturation of 18-bp DNA duplexes was investigated via Square Wave Voltammetry (SWV) to determine the extent of melting (∆) and rate of melting (𝝉). Electrostatic denaturation was observed over the temperature range of 20-50 °C, and purely electrostatic melting was defined from 27.5°C. In contrast, electrostatic denaturation for 30 °C was defined as a mixture of thermal melting thiol desorption + electrostatic melting. Electrostatic denaturation is a temperature-dependent process, and the amount of melting of the dsDNA increased with temperature. It was also observed that the ∆ and 𝝉 values increase with temperature further …

The Experiences Of International Graduate Students From Latin America In Their Transition Of Graduating And Finding A Job In The United States, Natalia Hernandez

Master's Theses

The purpose of this thesis project is to conduct a qualitative phenomenological study to understand the lived experiences of international graduate students from Latin America in the United States as they transition from their studies to finding a full-time job in the United States. The most common themes mentioned in the different sections of the interviews were: the different dynamics in their identity, the benefits, and limitations of their status in the American context, and how their professional development and economy are impacted while being international graduate students from Latin America. Student service departments such as the Career Service department, …

The Gallery As A Site Of Convergence: The Role Of Creative Environments At Postsecondary Institutions, Jordán Francisco Sandoval

Master's Theses

Not enough research explores the role of creative environments at postsecondary institutions. In response, this qualitative research study focuses upon university galleries believing them to be exemplary artistic spaces within college campuses. Using a theoretical framework of place-consciousness, the researcher examined the functions of the Mary and Carter Thacher Gallery at the University of San Francisco (USF), paying close attention to the ways it engaged the academic community in terms of scholarship and instruction. Informed by grounded theory and phenomenology, this study interviewed five professors who integrated a gallery visit into their curriculum during the 2021-2022 academic year. Collecting these …

Influence Of Altitude And Scan Angle On Uas-Lidar Ground Height Measurement Accuracy In Juncus Roemerianus Scheele (Black Needle Rush)-Dominated Marshes, Michael Amelunke

Master's Theses

Coastal marshes are influenced by complex interactions among environmental and human factors. Marsh plant communities exist across subtle elevation gradients which are highly influenced by the local tidal regime. To better understand these dynamic conditions, improved methodologies for acquiring accurate elevation values are a necessity in marsh research and management. However, overestimation of marsh elevation values obtained from remote sensing is common due to vegetation characteristics. The goal of this study was to address this problem by determining the optimum altitude and scan angle for Light Detection and Ranging (LiDAR) collection using an Unmanned Aerial System (UAS) within Juncus roemerianus …

Analysis Of Fossil Pollen From A Pleistocene Cypress Forest Preserved On The Northern Gulf Of Mexico Continental Shelf, Kathryn Joyce Garretson

Master's Theses

This study presents the findings of fossil pollen analysis performed on terrestrial sediments preserved on the northern Gulf of Mexico continental shelf (site hereafter known as the Underwater Forest or DF). This research aims to establish vegetation composition on a continental shelf glacial refuge and provide a better understanding of vegetation response to sea-level rise. Two cores (15DF1 and 15DF3B) located at different locations within the forest were recovered and analyzed. Pollen results from both cores were similar, with high percentages of Taxodium and Nyssa pollen in the lowermost sections reflecting an assemblage typical of contemporary baldcypress swamps. Pollen assemblages …

Large Scale Disease Modeling, Walker Mattox

Master's Theses

In this we study large scale disease modeling. After understanding the mechanics behind the SIR disease model in an ODE sense, we will apply this knowledge to model disease spread in more and more increasing advanced cellular automata. Eventually, some of our cellular automata will include long distance travel. From this discrete data, we can then build an SIR model in the PDE sense to display large scale disease spread.

The Impacts Of Cooperative Learning In Classrooms On Student Social Skills, Joseph Larson

Master's Theses

This mixed-methods action research study investigates potential effects of cooperative learning strategies on observed and self-reported student social skills in a fourth grade classroom. Baseline data is collected at a time when the classroom is predominantly whole-group and is then compared to ensuing data collected during and after cooperative learning interventions. Opportunities for students to work in interdependent partnerships and small groups ramps up gradually and culminates in a 3-week period which includes 3 different jigsaw-style lesson activities. Data suggests that students who are unaccustomed to working with peers may struggle to exhibit required social skills that make cooperative learning …

The Impact Of Peer Tutoring On Elementary Students’ Mathematical Education, Kristen Clapp

Master's Theses

This action research study utilized a mixed-methods approach to determine the impact peer tutoring can have in mathematical instruction within a fourth-grade classroom. Data was collected using student-surveys, personal journal entries, and student work samples over the course of a four-week time frame. Report findings show both unchanged and positive impacts in students’ achievement in math as well as data supporting the idea that students who present high mathematical comprehension prior to the study result in no significant impact in mathematical achievement through peer tutoring. This study also displays how student skill and personalities impact effectiveness and ineffectiveness in mathematical …

Impact Of Movement Breaks On Student Focus, Marissa Malyszek

Master's Theses

This action research study focused on the impacts that movement breaks had on student focus during math lessons. This was a mixed-methods study with data collection occurring over a time period of three weeks while in a third grade classroom. Students were given 60-180 second movement breaks during math lessons over the course of the study. Movement breaks were classified in this study as any activity that required movement of one or more parts of the body. Data was collected in the form of observational analysis as well as through the use of student surveys. The findings of this study …

Use Of Encouragement In The Classroom To Help Students Succeed [2022], Erin Fieldhouse

Master's Theses

This case study is based on a one student study that used a mixed methods approach seeing the effects of encouragement in the classroom and how it might help a student socially and emotionally. Data was collected throughout a 12-week period based around the findings of field notes and a survey that was implemented into the classroom. Preliminary findings are inconclusive based on students having more difficulties that affect them in different ways. This paper will provided [sic] information about how to use encouragement in the classroom.

Teachers are always trying to find new methods to help their students. …

The Influence Of Short-Term Goal Setting On Student Performance And Motivation, Amber Lefever

Master's Theses

Student goal setting is one powerful tool that can influence students' attitudes and achievements. This mixed-methods study examines the effects of short-term goal setting on the performance and motivation of students in a fifth-grade classroom. Students set weekly goals and tracked their performance through daily self-reflection. The goal-setting intervention provided students an opportunity to gain success through intrinsic rewards and strengthen their self-efficacy skills. Data were collected and analyzed over a three-week time frame. This presentation provides details on the effectiveness of goal setting in the classroom and procedures for structuring goal-setting interventions for upper elementary students.

The Effects Of Incorporating Kinesthetic Learning On Learning Outcomes And On-Task Behavior, Katherine Sauro

Master's Theses

This action research study used a mixed methods design to examine the effects of kinesthetic learning on student learning outcomes, and on task behavior in a sixth-grade social studies classroom. Data was collected during a three-week period. The treatment group was presented with kinesthetic lessons, purposeful movement, and brain breaks. The control group remained stationary during their lessons. Findings suggested an increase in both on-task behavior, and learning outcomes. In addition to examining learning outcomes and on task behavior, student's perceptions were also considered through the students’ completion of weekly surveys. These surveys suggested that providing movement to students positively …

Analytic Hierarchy Process Is Not A Suitable Method For The Comprehensive Rating, Sai Nethra Betgeri

Master's Theses

The Pipeline Assessment and Certification Program (PACP) was developed by the National Association of Sewer Service Companies, the industry-accepted protocol for condition rating of sewer pipes in the US. The PACP method relies exclusively on visual inspections performed using Closed-Circuit Television (CCTV), where existing structural and operation and maintenance (O&M) defects are observed by certified operators. A limitation of the PACP method is that it does not use pipe characteristics, depth, soil type, surface conditions, pipe criticality, and capacity, nor the distribution of structural defects or history of preventative maintenance to determine the condition rating of the sewer pipe segment. …

Composing Mortality: The Voice Of Death In The Music Of Frédéric Chopin, Jessica Castleberry

Master's Theses

The constant presence of mortality in Frédéric Chopin’s life, writings, and music resulted in his obsessive fascination with death, informed both by his individual experiences and cultural milieu. Through topical analysis of the programmatic, texted, and operatic repertoire of the nineteenth century, a body of musical gestures used to depict the varying aspects of mortality can be codified into a single style––the macabre style. This codification allows for a historically informed hearing of the instrumental repertoire of composers such as Chopin. Analyzing Chopin’s works that directly evoke the foundational genres of the style, the funeral march and lament, provides a …

Teaching Old Calipers New Tricks: Using Craniometrics For Ancestry Admixture Estimation Via Fuzzy Math, Kristi Carnahan

Master's Theses

Cranial measurements have been a cornerstone of physical anthropology since its formation as a discipline in the early 1900s. However, most other ancestry determination methods come with a significant epistemological issue: they differentiate individuals into discrete categories without accounting for the issue of admixture. Advances in data mining and analysis techniques can now be used to help resolve this issue through soft computing, also known as “fuzzy math”. This type of advanced computational math requires specialized knowledge in computer programming, statistics, and data analysis techniques unless one is using computer programs specially designed to run these analyses.

This project compiled …

Understanding Biogeochemical And Physical Controls On Methane Air-Sea Exchange Fluxes In The Pacific Ocean, Sarah Raney

Master's Theses

Methane and trace element samples were collected on GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise conducted between the Aleutian Islands (57 °N) and Tahiti (20 °S) from September to November 2018. Uncertainty in methane air-sea exchange fluxes was determined using a propagation of errors approach. Fluxes ranged from -0.88 to 4.9 µmol CH₄ m^-2 d^-1. Average CH₄ flux along the Alaskan margin was 2.2 ± 2.9 µmol CH₄ m^-2 d^-1. Methane fluxes decreased moving southward and increased to their open ocean maximum around 20 °N before declining in equatorial waters. Near …

Emotions In Work And War: Comparisons Of Emotional-Cultures Of New Deal Ccc Enrollees And Wwii U.S. Army Enlistees, 1933-1945, Maeve Losen

Master's Theses

Though the Great Depression and Second World War were consecutive eras and overlapped in numerous aspects, scholarship often overlooks the commonalities between these periods. To demonstrate these eras’ shared qualities, this thesis examines the relationship in emotional-cultures—the cultural norms that dictated how individuals felt and demonstrated their emotions—among Civilian Conservation Corps (CCC) enrollees and U.S. Army enlistees during WWII.

The broad intent of this undertaking is to place the cultural history of the Great Depression and WWII in conversation and to show the advantage of inter- and multidisciplinary work by applying anthropological and historical theories of emotion. Though the historical …

A Comparison Of Natural, Living, And Hardened Shorelines Ability To Prevent Coastal Erosion And Maintain A Healthy Ecosystem, Gabrielle Spellmann

Master's Theses

It is important to find a suitable method to protect the U.S. Gulf Coast shoreline, since its’ low elevation and the Loop current make it vulnerable to sea level rise. I focused on two manmade methods, hardened, and living shorelines, of coastal protection for when the natural marsh suffers excess erosion rates. Living shorelines are a suite of shoreline conservation and restoration techniques that usually involve some sort of hardened structure that dampens wave energy so that the native vegetation behind it can take root and stabilize the shoreline. This study looked at six different sites, all containing a natural, …

Spatial And Temporal Variation In Growth Rate Of Blue Rockfish (Sebastes Mystinus) In Nearshore Central California Determined Using A Physiological Biomarker, Ellie M. Brauer

Master's Theses

Identifying areas of high fish population productivity is crucial for protecting habitats essential to fish growth and reproduction and, ultimately, for achieving sustainable fisheries. Historically, evaluations of habitat quality have relied heavily on linking spatial variation in fish abundance to environmental parameters such as substrate category, depth, or bathymetry. That approach, however, assumes that areas of high fish abundance best support growth and reproduction of a species and thus may fail to detect spatial or temporal variation in population attributes, such as somatic growth rate, which can be central to recruitment success and survival. In this study, we employed a …

Development Of A Prototype Ball-And-Plate Balancing Platform, Scott J. Mangin

Master's Theses

Ball-and-plate balancing platforms have been utilized throughout academia to further understanding of nonlinearities that can occur when applying control algorithms to nonholonomic and underactuated systems. The objective of this thesis is to build upon an existing ball-and-plate balancing platform used in the Intro to Mechatronics class and create a robust platform system that can be utilized by future students to test various controller designs derived from MATLAB/Simulink®. The ball-and-plate platform design uses a myriad of sensors to track the system components in real time: a resistive touch panel is used to track the position of the ball on the plate, …

Aeroelastic Analysis Of Small-Scale Aircraft, Kent Roberts

Master's Theses

The structural design of flight vehicles is a balancing act between maximizing loading capability while minimizing weight. An engineer must consider not only the classical static structural yielding failure of a vehicle, but a variety of ways in which structural deformations can in turn, affect the loading conditions driving those deformations. Lift redistribution, divergence, and flutter are exactly such dynamic aeroelastic phenomena that must be properly characterized during the design of a vehicle; to do otherwise is to risk catastrophe. Relevant within the university context is the design of small-scale aircraft for student projects and of particular consideration, the DBF …

Underground Transmission For Renewable Energy: Design, Modeling, And Analysis, Matthew Suen

Master's Theses

A microgrid is a local energy grid that could be disconnected from the larger grid and operate autonomously. This particular segment of the power industry is growing due to its reliability during times of emergency and crisis. Among these benefits are improved efficiency, lower operating costs, renewable generation sources, and improved resiliency of the regional electric grid. Communities can better prepare for unprecedented weather like wildfires, hurricanes, and other natural disasters. Regions that produce renewable energy can export their surplus through high voltage transmission lines to balance power supply and demand needs.

This Underground High-Voltage Transmission Network project aims to …

Lytic Bacteriophages And Lactic Acid As Processing Aids Against Salmonella Spp. And Escherichia Coli O157:H7 On Marinated And Tenderized Pork Loins, Sherita Li

Master's Theses

Within the last decade, pork consumption has steadily increased and continues to be the most consumed meat globally. However, pathogenic bacterial strains resistant to antibiotics have also been increasingly found in pig farms, animals, and the environment. Bacterial food poisoning cases due to Salmonella spp. and Escherichia coli (E. coli) O157:H7 appear to be linked with a variety of pork products. The meat industry has recognized that research is needed to combat the multi-drug resistance in foodborne pathogens with alternative methods of control. This study evaluated the effects of both E. coli- and Salmonella-specific lytic bacteriophages and …

An Optimization Model For Minimization Of Systemic Risk In Financial Portfolios, Zachary Alexander Gelber

Master's Theses

In this thesis, we study how sovereign credit default swaps are able to measure systemic risk as well as how they can be used to construct optimal portfolios to minimize risk. We define the clustering coefficient as a proxy for systemic risk and design an optimization problem with the goal of minimizing the mean absolute deviation of the clustering coefficient on a group of nine European countries. Additionally, we define a metric we call the diversity score that measures the diversification of any given portfolio. We solve this problem for a baseline set of parameters, then spend the remainder of …

Parametric Paraglider Modeling, Peter F. Heatwole

Master's Theses

Dynamic simulations are invaluable for studying system behavior, developing control models, and running statistical analyses. For example, paraglider flight simulations could be used to analyze how a wing behaves when it encounters wind shear, or to reconstruct the wind field that was present during a flight. Unfortunately, creating dynamics models for commercial paraglider wings is difficult: not only are detailed specifications unavailable, but even if they were, a detailed model would be laborious to create. To address that difficulty, this project develops a paraglider flight dynamics model that uses parametric components to model commercial paraglider wings given only limited technical …

Patterns Of Academic Help-Seeking In Undergraduate Computing Students, Augie Doebling

Master's Theses

Knowing when and how to seek academic help is crucial to the success of undergraduate computing students. While individual help-seeking resources have been studied, little is understood about the factors influencing students to use or avoid certain re- sources. Understanding students’ patterns of help-seeking can help identify factors contributing to utilization or avoidance of help resources by different groups, an important step toward improving the quality and accessibility of resources. We present a mixed-methods study investigating the help-seeking behavior of undergraduate computing students. We collected survey data (n = 138) about students’ frequency of using several resources followed by one-on-one …

Fire Effects In Montane Meadows, Rosie Deak

Master's Theses

The impact of forest fires on downstream meadow communities across California is of great ecological interest, as meadows are an important source of biodiversity in this region. Over a century of fire suppression has led to increased forest stand densities, which in turn has resulted in less water availability due to increased transpiration of densely growing trees. This potentially has left less available water for downstream plant communities in meadows. If true, then high mortality wildfires in surrounding forest are predicted to lead to an increase in available downstream moisture where obligate and facultative-wetland taxa increase and dry-adapted upland taxa …