Digital Commons Network^™

Lateral Strength And Ductile Behavior Of A Mortise-Tenon Connected Timber Frame, Alexandros Kouromenos

Master's Theses

The primary goals of this project were to examine the amount of lateral force resisted by a single-bay mortise-tenon connected timber moment frame, and to introduce ductile behavior into the mortise-tenon connections by adding a steel sleeve around a traditional wood peg. This research aimed to provide proof that traditional timber frames are capable of ductile racking while reliably complying with ASCE 7-10 building code drift speci! cations, implying an increase in the ASCE 7-10 ductility factor (R) for wood frames when used as lateral force resisting elements. A secondary goal was to promote traditional heavy timber framing as a …

Revalume: Configurable Employee Evaluations In The Cloud, Terrence Zone Li

Master's Theses

The software industry has seen a shift from annual to more frequent quarterly and even weekly employee reviews. As a result, there is a high demand for employee evaluations to be less costly and less time-consuming, while providing key insights for richer interactions between employees and their employers or managers. Tech com- panies are constantly looking for methods of producing high quality evaluations to prevent costly turnover. In an industry where software engineers are in high demand, tech companies face a challenging problem. Issues with employee evaluations typi- cally include the lack of performance transparency, unhelpful feedback, lack of metrics, …

Fluid Flow Characterization And In Silico Validation In A Rapid Prototyped Abdominal Aortic Aneurysm Model, Dean Thomas Wampler

Master's Theses

Aortic aneurysms are the 14^th leading cause of death in the United States. Annually, abdominal aortic aneurysm (AAA) ruptures are responsible for 4500 deaths. There are another 45,000 repair procedures performed to prevent rupture, and of these approximately 1400 lead to deaths. With proper detection, the aneurysm may be treated using endovascular aneurysm repair (EVAR). Understanding how the flow of the blood within the artery is affected by the aneurysm is important in determining the growth of the aneurysm, as well as how to properly treat the aneurysm. The goal of this project was to develop a physical construct …

Silent Communication Device, Christopher Wayne Schutter

Master's Theses

Oral communication has constituted as a necessary aspect of how people interact with one another, but there are always situations where this form of communication can create distractions, irritation, or even danger. Take for example, a student in a laboratory who needs to communicate effectively with a lab partner without creating a distraction to those trying to work around said student or a soldier on a battlefield who needs to relay information effectively to his or her comrades without revealing his or her position to the enemy. It becomes apparent that people need a more exclusive form of communication in …

Orbital Determination Feasibility Of Leo Nanosatellites Using Small Aperture Telescopes, Michael R. Strange

Master's Theses

This thesis is directed toward the feasibility of observing satellites on the nano scale and determining an accurate propagated orbit using a Meade LX600-ACF 14” diameter aperture telescope currently located on the California Polytechnic State University campus. The optical telescope is fitted with an f/6.3 focal reducer, SBIG ST-10XME CCD camera and Optec TCF-S Focuser. This instrumentation allowed for a 22’ X 15’ arcminute FOV in order to accurately image passing LEO satellites. Through the use of the Double-r and Gauss Initial Orbit Determination methods as well as Least Squared Differential Correction and Extended Kalman Filter Orbit Determination methods, an …

Mixed Signals: Examining Ethnic Affirmation As A Factor In The Discrimination-Depression Relationship With Multiracial And Monoracial Minority Adolescent Girls, Linda A. Oshin

Master's Theses

Multiracial adolescents are a growing segment of our population, but not much is known about their ethnic-racial identity development. The current study examined ethnic affirmation, a dimension of ethnic-racial identity, and race socialization and their influence in the relationship between perceived group discrimination and depressive symptoms among multiracial (n = 42) and monoracial minority Black (n = 29) and Latina (n = 95) adolescents (M=15.4 years). Results showed that there were no mean differences between multiracial and monoracial adolescents in ethnic affirmation, maternal race/ethnic socialization, or depressive symptoms. Multiracial adolescents reported significantly less perceived discrimination. …

The Effect Of Biocomposite Material In A Composite Structure Under Compression Loading, Benjamin Andrew Sweeney

Master's Theses

While composite structures exhibit exceptional strength and weight saving possibilities for engineering applications, sometimes their overall cost and/or material performance can limit their usage when compared to conventional structural materials. Meanwhile ‘biocomposites’, composite structures consisting of natural fibers (i.e. bamboo fibers), display higher cost efficiency and unique structural benefits such as ‘sustainability’. This analysis will determine if the integration of these two different types of composites are beneficial to the overall structure. Specifically, the structure will consist of a one internal bamboo veneer biocomposite ply; and two external carbon fiber weave composite plies surrounding the bamboo biocomposite. To acquire results …

An Assessment Of Potential False Positive E.Coli Pyroprints In The Cplop Database, Skyler A. Gordon

Master's Theses

The genetic information found in each species of organism is unique, and can be used as a tool to differentiate at the molecular level. This has caused rapid genotyping methods to become the cornerstone of a new area of research dependent on reading the genome as a form of identification. One of these specific identification methods, known as pyroprinting, relies on the small variation of DNA sequences within the same species to develop a unique, reproducible fingerprint. By simultaneously pyrosequencing multiple polymorphic loci within the ribosomal operons known as the intergenic transcribed spacers, a reproducible output is obtained, known as …

Plant Compound Pest Control In California Strawberry (Fragaria × Ananassa) Production, Eli Mahanes Weissman

Master's Theses

Allelopathy occurs when one organism releases a compound into the environment that affects the functioning of another organism. Scientists have long suspected that alleopathic plant compounds could offer novel, softer chemistries to the ongoing battle of controlling pests in agricultural fields. Strawberry growers rely on toxic fumigants to kill soilborne fungal pests, weeds, nematodes, and insects. Increased regulations have reduced the use of fumigants (including methyl bromide), and strawberry growers need new sustainable pest control solutions. We selected four putative allelochemicals with known fungicidal and herbicidal activity (ferulic acid, gallic acid, juglone, and p-Coumaric acid). We assessed the pesticidal activity …

Comparing Groundwater Model Calibration Approaches: Does An Optimized Model Better Reflect Reality When Both Flow And Transport Observations Are Applied?, Vivian E. Sovinsky

Master's Theses

This research compares two approaches to the application of formal calibration methods to groundwater modeling: sequential and combined. There exists research, both theoretical work and field studies, that point to improved estimation of hydraulic parameters when multiple types of observations, flow and transport, are applied simultaneously. There also exist theories about why combined calibration might not be compatible with the differing mathematical basis of flow compared to transport. This research has taken a closer look at the mechanisms at work by comparing these approaches when the input parameters are known. Using stochastic methods instead of field data, the original input …

Investigating Trends In Poly-Victimization Among Cps Involved Children And Families: A Study Of Allegations, Nicole A. Melita

Master's Theses

Children involved with child protective services (CPS) face high risk for significant mental health impairment and poor outcomes, which recent work suggests can be influenced by poly-victimization, or exposure to multiple forms of victimization (Grasso, Greene, & Ford, 2013). The present chart review study was intended to examine the incidence of trends in poly-victimization, child mental health outcomes, and caregiver impairment among a sample of randomly selected families in the state of Connecticut (N=100) that were referred to CPS during a 12-month period. Allegations were examined collectively regardless of allegation disposition. An extensive survey tool was created by …

Flexible Pfc Control Employing Adaptive Gain, Mode Estimation, & Reactive Power Compensation, Joshua M. Ivaldi

Master's Theses

No abstract provided.

Measuring And Improving Seniors' Access To Medical Facilities, Angelika Zygo

Master's Theses

The travel behaviors of older adults often shift as they retire, begin second careers and make residence location choices geared towards aging in place. Those who rely on transit as their primary mode of transportation can face many accessibility and connectivity challenges when traveling to basic amenities due to their unique travel behaviors and declining mobility with advanced age. First chapter of this thesis focuses on a subset of these travel behaviors through a literature review then evaluates the ability of public transportation to meet the specific mobility needs of older adults (defined in three ways: as those adults >65 …

Effects Of Art In Hiv Infected Population On Body Habitus Change: A Multilevel Meta-Analysis, Nusrat Nuireen Habib

Master's Theses

Importance: Different ART treatments to HIV patients has been shown to be effective in improving a variety of disease outcomes, including CD-4 cell count improvements and viral suppressions. In addition to these improvements, investigators are also interested to evaluate the association between ART treatments and the body habitus changes of the HIV patients. It is unclear that which body habitus change outcomes are more greatly associated with what type of ART treatments and how those effects could vary depending on context and sample characteristics.

Objective: To obtain overall effect sizes for the body habitus change outcome variables (weight, body mass …

The Properties Of Particleboard Using Bagasse, Sisal And Waste Carpet, Hanchi Zhu

Master's Theses

The demand for manufactured panels for construction, furniture and other applications place strains on the forestry industry leading to deforestation. Similarly, one component of the very large waste stream from construction and renovation is post consumer carpet. The post consumer carpet waste and widely available waste biomass streams can be used to produce panels sustainably. Laboratory scale panels were produced with several ratios of bagasse and carpet to deduce a reasonable formulation to produce M-2 grade particleboard. The selected formulation was used to produce several industrial prototype panels of 18mm thickness for independent testing. Statistical analysis was performed to assess …

Koinonia: Experiences Of Cultural Diversity In The Andrews University Theological Seminary, Joshua N. Brantley

Master's Theses

The Andrews University Theological Seminary has a long standing history of attracting students from around the world seeking to acquire a Masters of Divinity (M.Div.). However, it is unclear how students of various backgrounds experience the seminary’s diversity. This study conducted an online survey with M.Div. students to examine the seminary’s performance according to the respondents as a whole and based on different ethnicities. The first hypothesis was that students of various ethnicities experienced the incorporation of diversity into the curriculum differently. The second hypothesis was that seminary events did not reflect the diversity of the student body and were …

Araucaria In The Urban Landscape: A Novel Leaning Pattern And Evidence Of Cultivated Hybridization, Jason W. Johns

Master's Theses

Our understanding of the natural world is constantly evolving and strengthening as more observations are made and experiments are performed. For example, we understand that tree stems grow toward the light (positive phototropism; Darwin 1880, Loehle 1986, Christie et al. 2013) and against gravity (negative gravitropism; Knight 1806, Hashiguchi et al. 2013). We also know that plants respond to mechanical stimulus and perturbation (thigmotropism; Braam 2005). Genes and their resulting proteins have been described to uncover some of the mechanisms for these environmental responses, but relatively speaking, we have just scratched the surface (Wyatt et al. 2013). While the discovery …

“Creating A New Mythos”: Reassessing Race Standards And Latina/O Students, Margarita Vizcarra

Master's Theses

This research will focus on the race and ethnicity categories used to classify people in the United States in relation to school age students. The Office of Management and Budget (OMB) first standardized federal race and ethnicity categories in 1977 in order to enforce compliance with civil rights laws. In 1997 revisions were made to these standards due to increasing criticism by the public, advocacy groups, and government agencies (Williams, 2006). The 1977 decision by the OMB designated the category of Hispanic, or Latino, as an ethnicity rather than a race which was once again upheld in the 1997 update. …

A Comparative Analysis Of Access To Reproductive Health Care In Laos And Southeast Asia, Malakhone Sonethavong

Master's Theses

This thesis research aims to unravel main barriers that prevent women from being able to access reproductive health care in Laos in comparison with other two Southeast Asia countries which are Thailand and Vietnam. The comparison of Laos, Thailand and Vietnam will be explored through an analysis of a literature review. This research explores the critical issues and on finding a mutual understanding between the role of the policy makers and the implementers of policies. At the end of the research, some recommendations on health care system improvement and personal perspective towards the rights of women on reproductive health and …

The Devil's In The Emails: A Sociological Examination Of Organizational Failure, William Howard Burr

Master's Theses

It is often argued that the market, with its "invisible hand," displays an inherent bent towards maximizing utility and delivering the "greatest good to the greatest number." Faith in the market to act as benevolent overlord is not only misguided but, as revealed during the Great Recession, a fantasy. Analyzing emails made public following the Lehman Brothers bankruptcy, this paper considers the organizational culture within Lehman Brothers leading up to history's largest bankruptcy in order to emphasize the role of interaction within an outcome otherwise uncritically categorized as the unavoidable product of market fluctuations. Demonstrating how Lehman employees adopted the …

Potential Efficacy Of Targeting Mll1 In Breast Cancer, Austin Gable Holmes

Master's Theses

In 2017, it is estimated that breast cancer will be the most prevalent newly diagnosed cancer in females, at 30% in the U.S. alone1. From the early 1990s to 2014 the death rate in females from breast cancer has dropped by 10% but still stands as the second highest cancer related death in females in the U.S.2. One of the biggest hurdles in breast cancer research is disease heterogeneity. New mechanisms of disease development and progression are encountered frequently. One mechanism studied in the past decades is epigenetics. It has been theorized that the cancer epigenome can maintain an abnormal …

Coping With Exposure To Community Violence: Assessing The Role Of Avoidance In Reducing Delinquency And Aggression In Low-Income Urban Adolescents, Cara Marie Diclemente

Master's Theses

Exposure to community violence has disabling effects on the mental health of youth in the US, with high rates of exposure for African American adolescents from underserved, urban communities. Past literature suggests that avoidant coping, specifically behavioral avoidance, may be most useful for youth exposed to uncontrollable stress. The current study assessed the utility of coping strategies in reducing aggression and delinquency in 267 sixth through eighth grade African American youth. First, confirmatory factor analyses revealed a three-factor structure of coping: cognitive approach, behavioral approach, and avoidance. Next, moderated moderation findings showed that for boys, avoidance and approach strategies increased …

Chicago Public Schools And The Creation Of Global Citizens, Rebecca L. Kijek

Master's Theses

This article examines the role different high schools in Chicago Public Schools play in providing students with the type of knowledge needed to better prepare them for success in a globalized society. As Chicago strives to solidify itself as a global city, its need to educate youth for a new economy are clear. The global economy demands that students are educated in science, technology, engineering, and math, world languages, expanded cultural perspectives, and attend a four-year college. Through a comparative analysis of the academic programming features at Chicago's selective enrollment and neighborhood high schools, this study will answer the question: …

Filling Pews, Speaking Truth: Pro-Life Ministry In A Liberal Catholic Parish, Jonathan Neidorf

Master's Theses

Scholars of the pro-life movement in the United States have extensively documented how pro-lifers in this country feel that their cause is embattled by society (Williams and Blackburn 1996; Maxwell 2002; Munson 2008). Other research argues that conservative Catholics tend to feel that their Church is swept up in an increasing liberalization in greater society, which serves to compromise core moral tenets of the faith (Leege 1988; Weaver and Appleby 1995; Wedam 1993). No thorough research exists examining how pro-life Catholics see their Church's and their parish's liberalism as directly suppressing their pro-life work. In this ethnographic study of a …

Children's Exposure To Violence Across Contexts: Profiles Of Family, School, And Community Witnessing And Victimization, Catherine Mary Rice

Master's Theses

Children residing in low-income, urban neighborhoods are at a disproportionately higher risk of exposure to violence (ETV) across multiple contexts compared to their peers, including witnessing violence and direct victimization. The many negative effects of ETV are compounded when youth experience ETV across multiple settings and when these experiences are chronic. Despite this, much of the research on ETV during childhood focuses on a single form of violence (e.g., family victimization or witnessing community violence). The current study examines patterns of frequency of ETV, including witnessing and victimization, across family, school, and community contexts, using person-centered methods to elucidate the …

A Mobile App Illustrating Sensory Neural Coding Through An Efficient Coding Of Collected Images And Sounds, Xiaolu Zhao

Master's Theses

Sensory neuroscience in the early auditory and visual systems appears distinct not

only to outside observers, but to many trained neuroscientists as well. However, to a computational neuroscientist, both sensory systems represent an efficient neural coding of information. In fact, on a computational level it appears the brain is using the same processing strategy for both senses - the same algorithm with just a change in inputs. Insights like this can greatly simplify our understanding of the brain, but require a significant computational background to fully appreciate. How can such illuminating results of computational neuroscience be made more accessible to …

Perceived Partner Sexism And Stigma Consciousness: How 'Prince Charming' Undermines Relationship Satisfaction, Danielle Lauren Kellogg

Master's Theses

Perceived discrimination (outside of the relationship) relates to negative relationship outcomes, moderated by stigma consciousness (DeHart, 2017). Women who report higher (versus lower) levels of perceived partner benevolent sexism (i.e., perceptions of one's partner's endorsement of sexist attitudes) experience more negative relationship outcomes as well (Hammond & Overall, 2013; Hammond & Overall, 2014; Hammond & Overall, 2015). In addition, relationship partners adopt more traditional gender roles after becoming parents, which fosters benevolent sexism (Trillingsgaard, Baucom, & Heyman, 2014). In this study, married or cohabiting women with children were randomly assigned to either a sexism manipulation or control condition, prior to …

Developing Integral Ecologists: Description And Analysis Of The State Of Environmental Education At Jesuit High Schools In Light Of Religious Ecological Commitments And Science Education Research, Philip Nahlik Nahlik

Master's Theses

This research responds to numerous calls to focus more immediately and deeply on environmental education in the context of local communities. Jesuit high schools offer a rich network to study this movement, as schools with long histories of scholarly and moral concerns for forming students to think about and act on worldwide problems. The key research question is: How can science education research inform environmental education in these schools? The research methodology includes data collection and analysis of publicly-accessible website data, phone interviews with teachers, and a literature review of science education research. Recommendations are given for vertically aligning the …

Understanding The Level Of Achievement Bilingual Education Fosters In Students, Erica Mallett

Master's Theses

Traditional approaches to examining the effectiveness of bilingual programs typically compare them to monolingual programs and rarely discuss the meaning and complexity of the notion of achievement therein. A vertical case study framework is used to examine this local phenomenon at a bilingual elementary school in Chicago, Illinois across local, national, and global contexts. This vertical case study aims to answer the question; how does a bilingual program define the notion of achievement and work to facilitate that achievement for students? To do this, I conducted interviews and analyzed policy documents to examine how achievement is defined in bilingual education …

The Effects Of Superordinate Identity Recategorization And Social Value Orientation On Ethical Decision-Making In A Business Dilemma, Thomas Steven Colville

Master's Theses

The purpose of the present study was to investigate potential solutions to the prevalence of unethical behavior in groups, specifically through the use of superordinate recategorization. Superordinate recategorization allows group members to feel an affinity with others not typically included in their in-group. This should promote ethical decision-making by enabling the inherent in-group favoring tendencies found in groups to be extended to a more inclusive category. In the context of the present study, the ethicality of participants' behavior in the Panalba scenario was determined by their choices on a 1 to 6 scale from least to most ethical. Additionally, participants’ …