Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

Theses/Dissertations

Discipline
Institution
Keyword
Publication Year
Publication

Articles 1 - 30 of 515668

Full-Text Articles in Entire DC Network

Growth, Lipid Production And Biodiesel Potential Of Chromulina Freiburgensis Dofl., An Acidophilic Chrysophyte Isolated From Berkeley Pit Lake, June E. Mohler Mitman Mar 2109

Growth, Lipid Production And Biodiesel Potential Of Chromulina Freiburgensis Dofl., An Acidophilic Chrysophyte Isolated From Berkeley Pit Lake, June E. Mohler Mitman

Graduate Theses & Non-Theses

Microalgae remain a promising, but underdeveloped source of lipids for sustainable biodiesel. Some of the obstacles to cost-effective commercial-scale production have been culture contamination and expensive harvest methods. A chrysophyte isolated from Berkeley Pit Lake and identified as Chromulina freiburgensis, was found to grow rapidly in a pH 2.5 liquid medium and to amass numerous intracellular lipid bodies. This research addresses the scarcity of published knowledge on the topic of chrysophyte species as potential lipid sources for biodiesel. It investigates how growth phase, culture conditions, and harvest timing influence the quantity and composition of lipids produced by this alga ...


Synthesizing Adversarial Examples For Neural Networks, Hasitha Rasineni Jan 2109

Synthesizing Adversarial Examples For Neural Networks, Hasitha Rasineni

Creative Components

As machine learning is being integrated into more and more systems, such as autonomous vehicles or medical devices, they are also becoming entry points for attacks. Many sate-of-the-art neural networks have been proved, to be vulnerable to adversarial examples. These failures of machine learning models demonstrate that even simple algorithms can behave very differently from what their designers intend to. In order to close this gap between what designers intend to and how algorithms behave, there is a huge need for preventing adversarial examples to improve the credibility of the model. This study focuses on synthesizing adversarial examples using two ...


Essays On Emotional Well-Being, Health Insurance Disparities And Health Insurance Markets, Disha Shende Dec 2022

Essays On Emotional Well-Being, Health Insurance Disparities And Health Insurance Markets, Disha Shende

Economics ETDs

This dissertation has three research papers. First paper looks at the effect of social networks on emotional well-being of cancer patients by studying the response of social networks on their depression symptoms. Using the data from a primary survey conducted in Nepal, the study finds that social networks significantly reduce depression symptoms among cancer patients. The results strongly advocate for the importance of the social networks in improving their emotional well-being. Second paper examines the health coverage disparities among Hispanic and non-Hispanic young adults in five southwestern states of the United States. Using the pooled data from American Community Survey ...


Beyond The Land: Maritime Interactions, Border Control, And Regional Powers Between China And Korea, 1500-1637, Jing Liu Apr 2022

Beyond The Land: Maritime Interactions, Border Control, And Regional Powers Between China And Korea, 1500-1637, Jing Liu

Dissertations - ALL

This dissertation interweaves the maritime dynamics of Ming China and Chosŏn Korea’s northern sea space, the Bohai Sea and the northern Yellow Sea, with the Northeast Asian transition of the sixteenth and early seventeenth centuries. This region formed an arena in this time period that allowed various players to communicate, negotiate, and contest. It also established a linkage between Northeast Asian terra-centered states and maritime East Asia. A systematic investigation of this particular region is thus essential to improving our understanding of interactive territorial and maritime relations. This dissertation investigates the increase of maritime commerce, wartime logistics, and military ...


Optimism And Physical Health-Related Quality Of Life In Chronic Illness: Mediating Effects Of Control Beliefs And Health Behaviors, Morgan Treaster Dec 2021

Optimism And Physical Health-Related Quality Of Life In Chronic Illness: Mediating Effects Of Control Beliefs And Health Behaviors, Morgan Treaster

Electronic Theses and Dissertations

Among persons living with, or recovering from, chronic illness, poor physical health-related quality of life is a concern, as current and residual illness symptoms and treatment side effects may deleteriously impact physical functioning and fulfillment of daily roles. Numerous cognitive, emotional, and behavioral factors may impact perceptions of health status. Optimism, for example, is conceptualized as belief in the occurrence of positive future outcomes, and is beneficially associated with physical health-related quality of life. Further, optimism may contribute to enhanced perceptions of control and efficacy over disease symptoms and general health, manifesting as proactive health behaviors (e.g., wellness behaviors ...


Providing Hypertension Education To African Immigrants At A Southern California Congregation During The Covid-19 Pandemic, Esther Oshunluyi Dec 2021

Providing Hypertension Education To African Immigrants At A Southern California Congregation During The Covid-19 Pandemic, Esther Oshunluyi

Doctor of Nursing Practice (DNP) Projects

Objective: To review methods that could contribute to improved knowledge of hypertension among African immigrants at a California congregation. The difference in the management and outcomes of hypertension between African Americans and Whites is most disparate in cardiovascular disease, with lack of education documented as a major contributor for African Americans (Lackland, 2014) and African immigrants (Turson-Ocran et al., 2020). African Americans differ slightly in culture, health, and migration history from Africans who are 21st century immigrants from Africa (African immigrants); however, there are more similarities than differences between them (Terrazas, 2009). This brief report will describe a Doctor of ...


Providing Hypertension Education To African Immigrants At A Southern Californian Congregation During The Covid-19 Pandemic, Esther Oshunluyi Dec 2021

Providing Hypertension Education To African Immigrants At A Southern Californian Congregation During The Covid-19 Pandemic, Esther Oshunluyi

Doctor of Nursing Practice (DNP) Projects

Objective: To review methods that could contribute to improved knowledge of high blood pressure, also known as hypertension (HTN), among African immigrants at a Californian congregation. The difference in the management and outcomes of HTN between African Americans and Whites is one of the highest in cardiovascular diseases (Lackland, 2014). Lack of education is a major contributor to uncontrolled HTN among African Americans, especially among African immigrants (AIs). This brief report will describe a Doctor of Nursing Practice project to address lack of HTN knowledge among AIs.

Setting: A church in Southern California.

Participants: Twenty adult AIs diagnosed with or ...


Purification Of I-129 From Spent Pwr Fuel, Sydney B. Whitaker, Kaitlyn Pierson, Kaylie Richard, Samantha Cahill Dec 2021

Purification Of I-129 From Spent Pwr Fuel, Sydney B. Whitaker, Kaitlyn Pierson, Kaylie Richard, Samantha Cahill

Chancellor’s Honors Program Projects

No abstract provided.


Youth Profiles Of Program Quality Perceptions And Their Associations With Social Competence, Scot R. Seitz Aug 2021

Youth Profiles Of Program Quality Perceptions And Their Associations With Social Competence, Scot R. Seitz

Psychology Dissertations

Many youth development programs (YDPs) aim to help young people improve their social competence, defined as the ability to navigate social situations effectively. Researchers have documented that the quality of YDPs is associated with youth outcomes, including social competence. There are multiple aspects of program quality (e.g., fun, sense of belonging). Most previous research has utilized a variable-centered approach to explore how individual components of program quality are associated with young people’s social competence. However, program participants do not experience individual aspects of program quality in isolation. The current study used person-centered analyses to account for young people ...


The Professional Struggles Of Contemporary Korean Women: Origins And Consequences Of The Glass Ceiling, Liat Miller Aug 2021

The Professional Struggles Of Contemporary Korean Women: Origins And Consequences Of The Glass Ceiling, Liat Miller

Master's Projects and Capstones

The status of women globally, though improved in recent decades, remains an unresolved issue. The labor market, in which women must contend with the glass ceiling phenomenon, is an indicative microcosmos of a larger issue—the persistence of discriminatory attitudes toward women. The case is even more profound in East Asian contexts, such as South Korea. The existing literature is limited and focuses on either specific aspects of the glass ceiling or particular industries in Korea. This paper explores the origins and interconnected causes of the glass ceiling in Korea, which include Confucian philosophy and values. Moreover, by analyzing testimonials ...


Social And Individual-Level Identities And College Male Alcohol Use Behaviors: Examining The Utility Of Protective Behavioral Strategies, Robert Bearden Whitley Jul 2021

Social And Individual-Level Identities And College Male Alcohol Use Behaviors: Examining The Utility Of Protective Behavioral Strategies, Robert Bearden Whitley

Dissertations

Recent literature has consistently identified conformity to traditional masculine norms as motivating hazardous drinking behaviors of college men. Given the high prevalence of hazardous drinking among college men and the particular negative consequences that emerge secondary to it, additional research is needed in this area to better identify possible intervention targets. The present study sought to better elucidate the proximity of male norm conformity to drinking behaviors through including a specific identity factor related to alcohol use: drinking identity. Secondary to this goal, this study also sought to examine how these factors of identity predicted the safe drinking behaviors of ...


The Power Of Presentation: How Attire, Cosmetics, And Posture Impact The Source Credibility Of The Female Expert Witness, Alexandra Repke Jul 2021

The Power Of Presentation: How Attire, Cosmetics, And Posture Impact The Source Credibility Of The Female Expert Witness, Alexandra Repke

Dissertations

While previous research has examined behavior-based presentation styles of the female expert witness in light of source credibility, further research is required to examine the effect of other modifiable factors on her credibility, since perceived credibility affects the intermediate judgments that lead to ultimate legal decisions. This study investigated the impact of both behavior-based (i.e., posture) and appearance-based (i.e., attire and cosmetic use) factors on the female expert witness’ source credibility Model attractiveness served as a covariate in this study. A four-way (2 x 2 x 2 x 2) between-subjects analysis of covariance (ANCOVA) revealed that, beyond an ...


Workplace Microaggressions Experienced By Sexual Minorities: Relationships To Workplace Attitudes, Mental Health, And The Role Of Emotional Distress Tolerance, Dylan Richard Jul 2021

Workplace Microaggressions Experienced By Sexual Minorities: Relationships To Workplace Attitudes, Mental Health, And The Role Of Emotional Distress Tolerance, Dylan Richard

Dissertations

Overt discrimination against sexual minorities in the workplace has been a topic of research and current political debate. However, little is known about a more nuanced form of workplace discrimination against sexual minorities: microaggressions. However, research has established clear mental health consequences of everyday microaggressions (e.g., increased depressive and anxiety symptoms, suicidality, lower life satisfaction, and physical health symptoms) against racial and sexual minorities. The current study aimed to explore correlates of microaggressions in the workplace, specifically workplace attitudes (e.g., job satisfaction and job stress) and mental health symptoms (e.g., depression, anxiety, and stress). Further, emotional distress ...


Mental Health Outcomes Of Various Types Of Fear Among University Students Who Have An Undocumented Legal Status During The Donald Trump Presidency, Liliana Campos Jun 2021

Mental Health Outcomes Of Various Types Of Fear Among University Students Who Have An Undocumented Legal Status During The Donald Trump Presidency, Liliana Campos

Doctoral Dissertations

Having an undocumented legal status is a risk factor for mental health conditions such as depression and anxiety among university students. Much of the literature on the experiences of university students who hold an undocumented legal status has primarily focused on better understanding the educational, social, financial, and legal challenges among undergraduate students. The literature has addressed how some of these difficulties impact components of their social and mental health wellness. Yet, there is still a dearth of research focused on further understanding the experiences of students who hold an undocumented legal status from a psychological perspective, and specifically, with ...


Social Media, Bullying, And Preadolescent Eating Disorders: Psychoeducation And Prevention Model, Agnes Zalesna Jun 2021

Social Media, Bullying, And Preadolescent Eating Disorders: Psychoeducation And Prevention Model, Agnes Zalesna

Dissertations

The purpose of this theoretical project was to examine the available research surrounding preadolescent eating disorders with particular focus on prevalence and risk factors. The author proposed that social media and bullying should be considered as specific risk factors for this demographic in light of the increased media device use among children. Next, the author examined cognitive functioning, child development, and learning theories as they relate to the influence of social media an bullying on the development of eating disorders in children as well as current research on protective factors, prevention, programs, and treatment recommendations. Finally, the author proposed a ...


A Place To Keep The Chaos: Using Expressive Arts To Mitigate Post-Traumatic Stress Disorder In Disaster Recovery, Julie Grebenau May 2021

A Place To Keep The Chaos: Using Expressive Arts To Mitigate Post-Traumatic Stress Disorder In Disaster Recovery, Julie Grebenau

Expressive Therapies Capstone Theses

In this capstone thesis, the author reviews current holistic research and methods around treating and understanding post-traumatic stress disorder (PTSD), using expressive arts therapy (ExAT) as a framework. The nature of a natural disaster is complex, in that it is both a process and an event. With ExAT’s emphasis on process, it is an appropriate approach to trauma as a result of natural disasters. The population focus is on earthquake survivors, specific to their early recovery, including traumatic stress and PTSD related to the event. I then apply research based on trauma and expressive arts therapy to this population ...


The Use Of Mindfulness Meditation To Increase The Efficacy Of Mirror Visual Feedback For Reducing Phantom Limb Pain In Amputees, Nicolas Sebastian Mills May 2021

The Use Of Mindfulness Meditation To Increase The Efficacy Of Mirror Visual Feedback For Reducing Phantom Limb Pain In Amputees, Nicolas Sebastian Mills

Doctoral Dissertations

Phantom limb pain is a chronic pain condition that negatively impacts the lives of over half of amputees, and results in considerable morbidity. Currently, there is no gold standard for treatment for phantom limb pain. However, a frequently used intervention is the use of mirror visual feedback, in which the amputee watches the reflection of the adjacent non-amputated limb move and exercise. In the last few decades, mindfulness-based interventions have been increasingly used with individuals living with different types of chronic pain. This study attempts to discover if the addition of a mindfulness-based intervention, such as guided meditation, will augment ...


Utilizing A Stress And Coping Model Into A Preventive Abusive Head Trauma Parent/Caregiver Educational Program, Camile Williams May 2021

Utilizing A Stress And Coping Model Into A Preventive Abusive Head Trauma Parent/Caregiver Educational Program, Camile Williams

Doctor of Nursing Practice (DNP) Projects

Abusive head trauma (AHT) is a serious form of child maltreatment that is the primary cause of fatal head injuries in children younger than 24 months and is the cause for over 50% of severe or fatal traumatic brain injury incidences. These injuries can be caused by impact, shaking, or the combination of shaking and impact. These multi-factorial injuries can cause intracranial and spinal damage, retinal hemorrhages, and fractures of ribs and other bones. The age and severity of injuries will be used to assess the diagnosis of AHT. When AHT occurs, it is often tied to the behavior from ...


The Potential Of Nordoff-Robbins Music Therapy Techniques In Music Therapy Practice For People Living With Dementia: A Literature Review, Ying-Chen Wang May 2021

The Potential Of Nordoff-Robbins Music Therapy Techniques In Music Therapy Practice For People Living With Dementia: A Literature Review, Ying-Chen Wang

Expressive Therapies Capstone Theses

The number of people with dementia has sustained growth in recent years. According to the World Health Organization (2012), dementia is one of the major causes of the loss of ability and independence for older adults worldwide. Due to the increase in the needs and demands of this population, there are more and more music therapy professionals devoting their effort to this field. Among a variety of music therapy approaches, Nordoff-Robbins Music Therapy practitioners also expand the ideas and beliefs from handicapped children to dementia care settings. There are six discussion topics in this literature review: (1) the main concepts ...


Mathematical Modeling Of A Two Wheeled Robotic Base, Kathryn Remell May 2021

Mathematical Modeling Of A Two Wheeled Robotic Base, Kathryn Remell

Mechanical Engineering Undergraduate Honors Theses

This thesis presents the concept of using a two wheeled robot on the moon and briefly explores the requirements for successful long term operation in a lunar environment. The mathematical model for the motion of a robot with two fixed wheels on a differential drive with in a global reference frame. The robot is assumed to be balancing a platform so the mathematical model to balance the platform with wheel motors is also developed and briefly evaluated.


U.S. Military Veterans’ Attitudes And Perceptions Of Mental Healthcare, Bridget Milam May 2021

U.S. Military Veterans’ Attitudes And Perceptions Of Mental Healthcare, Bridget Milam

Health, Human Performance and Recreation Undergraduate Honors Theses

The purpose of this research project is to measure whether U.S. military veterans experience any stigma related to mental healthcare and if this is associated with age, length of service, and military branch. U.S. military veterans are a high-risk group for developing mental illnesses. It is believed social stigma and personal attitudes, perceptions and beliefs of mental healthcare may influence whether a veteran will pursue mental healthcare. This cross-sectional study was conducted as an online survey via Qualtrics resulting in 75 total responses. 21 responses were excluded from the analysis due to incompletion or failure to pass the ...


Firm-Level Analysis Of The Tax Cuts And Jobs Act On Capital Expenditures, Mason Westphal May 2021

Firm-Level Analysis Of The Tax Cuts And Jobs Act On Capital Expenditures, Mason Westphal

Accounting Undergraduate Honors Theses

This study investigates the firm-level consequences to capital expenditure levels from the passing of the Tax Cuts and Jobs Act of 2017 (TCJA). It theorized that favorable tax provisions in the TCJA would cause firms to increase their levels of capital expenditures. To test this hypothesis, the study analyzed the capital expenditure levels of public firms from 1986-2019 controlling for factors such as national gross domestic product (GDP) growth and used a dummy variable of reporting periods after 2018 to represent the effects of the TCJA. In contrast to the original hypothesis, the results demonstrate that the TCJA had a ...


The Study Of High Intensity Interval Training's Effect On Enjoyment, Keali Mari May 2021

The Study Of High Intensity Interval Training's Effect On Enjoyment, Keali Mari

Theses/Capstones/Creative Projects

This study assessed participant’s level of enjoyment in high-intensity training over moderate intensity-training. High intensity interval training is defined as short bouts of exercise performed at a near-maximal effort with rest periods or light activity in between. High intensity interval training involves repeatedly exercising at a high intensity for 30 seconds to several minutes, separated by 1-5 minutes of recovery. This type of exercise has sparked the interest of many active people due to its decreased time commitment and the benefits it elicits. The results of this study show that high intensity interval training induces a higher enjoyment rate ...


A Comprehensive Analysis Of The Importance And Implementation Of Telehealth Behavioral Services In Rural Areas & Schools, Mckensi Uecker, Jode Kinnaman May 2021

A Comprehensive Analysis Of The Importance And Implementation Of Telehealth Behavioral Services In Rural Areas & Schools, Mckensi Uecker, Jode Kinnaman

Theses/Capstones/Creative Projects

Telehealth is a rapidly expanding mode of health care delivery, improving the efficiency of health care and related support services across the United States. Through telehealth, services are made more accessible, resulting in improved care for those in rural and under severed communities. Improving mental health care in the United States is not a simple fix, and it will require the continued normalization of behavioral health, so that our society will be able to move past the stigma, allowing people to feel comfortable seeking care. The goal of this paper is to address the importance of having access to behavioral ...


A Comparison Of Public Defenders Vs. Private Attorneys, Tiffany Costello Apr 2021

A Comparison Of Public Defenders Vs. Private Attorneys, Tiffany Costello

Honors Senior Capstone Projects

This study seeks to determine whether there are any differences in conviction rates or client satisfaction between public defenders and private attorneys in state or federal courts. Although researchers have spent time examining differences between attorney type and client satisfaction or conviction rates, little information exists on the assessment of attorney type in the federal system. The study will consist of a two-part survey with approximately twenty-seven closed-ended questions about client satisfaction, conviction, court, and attorney type. The target population will be any criminal defendant in federal or state court with an attorney. In this study, the sampling method will ...


The Ethics Of Interrogation: How Unethical Interrogations Lead To False Confessions And What It Means For The Criminal, Janelle Havens Apr 2021

The Ethics Of Interrogation: How Unethical Interrogations Lead To False Confessions And What It Means For The Criminal, Janelle Havens

Criminology Student Work

Forensic interrogation is a vital step in the process of criminal investigations in order to extract information about suspects and the crime at hand. However, tunnel vision, artificial time constraints, lack of thorough training, and noble-cause corruption can influence how an investigator decides to interrogate a suspect or witness. When these influences are exerted on an investigator, the need to secure an arrest and conviction overpowers the need for justice - this results in false confessions and wrongful convictions. This is otherwise known as “the end doesn't justify the means” mindset. This causes investigators to engage in unethical interrogations, whether ...


The Gridded Time Of Waiting; Or Is Not Aristotle’S Metaphysics; Or A Kind Of Idealist Trap; Or In My Secret Life, Olivia Divecchia Jan 2021

The Gridded Time Of Waiting; Or Is Not Aristotle’S Metaphysics; Or A Kind Of Idealist Trap; Or In My Secret Life, Olivia Divecchia

School of Arts & Sciences Theses

Theoretical musings, descriptions, articulations of process, quotations and anecdotes form a constellation of thoughts about the trappings of the grid, ontology, the subject, the window, translation and other things.


Collective Memory And Arab Jewish Identity, Maya Yadid Jan 2021

Collective Memory And Arab Jewish Identity, Maya Yadid

School of Arts & Sciences Theses

Within this paper I will explore my Arab-Jewish identity by confronting the historical development of that term. I will look at the ways in which collective memory and photography are utilized to construct images used as colonizing tools to assimilate Arab-Jews into Israel and Palestine after 1948 as part of Zionist Ideology. In an effort to explore productive forms of collective memory, I will investigate the way food and hospitality are used as a vehicle to strengthen this cultural diaspora. I will conclude by discussing my thesis installation in which the gallery is activated by food preparation and consumption, ceramic ...


Military Influence On Middle Eastern Democratization Following The Arab Spring, Andrew Fleming Jan 2021

Military Influence On Middle Eastern Democratization Following The Arab Spring, Andrew Fleming

Williams Honors College, Honors Research Projects

Despite experiencing countless wars, sectarian extremism, imperialism, and authoritarian rule, very few events have impacted the Middle East more significantly than the Arab Spring. Starting in 2010, the Arab Spring marked a turning point in which the people of numerous Arabic states collectively gathered to protest and combat the oppressive regimes that had controlled the region for decades. The Spring was indicative of the strong, recurring ambitions for revolution and regime change across the Middle East, presenting the Arab nations with an opportunity to reform their states from within. For some Middle Eastern states, the Arab Spring served as a ...


The Effect Of Low Skill Job Opportunities On Postsecondary Enrollment, Mallory Radesic Jan 2021

The Effect Of Low Skill Job Opportunities On Postsecondary Enrollment, Mallory Radesic

Williams Honors College, Honors Research Projects

This research examines the effect that low skill job opportunities have on the probability of enrollment in postsecondary institutions between men and women, namely the construction and manufacturing industries. The research is based on the human capital investment theory, which states that individuals will enroll in postsecondary institutions when the perceived benefits outweigh the costs. More job opportunity heightens the opportunity cost of enrollment, hence lowering the probability of enrollment. After running a probit model, there is evidence that enrollment is countercyclical and that enrollment decisions do not vary significantly between men and women. I find that a 1 percent ...