Digital Commons Network^™

An Evaluation Of Virtual School's Preparation Of Second Grade Students For Third Grade Reading Proficiency, Lisa R. Hassler

Dissertations

Third-grade reading proficiency is an indicator of future student success in middle school and ninth grade, on-time graduation rates, and career success; however, 44% of third-grade students in one state were not meeting this goal. The purpose of this study was to investigate the extent to which virtual school in second grade prepared students for third- grade reading achievement. I used a mixed methodology to compare extant data from a state database on third-grade state achievement tests in the area of English Language Arts. Sixty-one second and third-grade teachers completed surveys, and three teachers participated in follow-up interviews. The data …

Prestige Vs Practicality: Transition Of Dual Enrollment Secondary Students To Post-Secondary Options: A Case Study, Robin Dakers Lynch

Dissertations

This qualitative research study investigated the perceptions of support during the college choice process of former CTE dual-enrollment students at one technical college campus. In addition, it examined the types of support participants received as they progressed through the three-stage college choice process (predisposition, search, and choice). Interviews were conducted with eight former CTE dual-enrollment students from a technical college campus. Each participant completed a demographic survey and was asked 15 interview questions that coincide with the three stages of the college choice process. Finally, the data was analyzed and coded to develop a thematic findings structure.

The study resulted …

Generations Of Pain: A Transgenerational Examination Of Trauma, Parenting Styles, And Attachment Of Black Women, Latoya Hampton

Dissertations

Historically, Black women have experienced horrendous acts of violence throughout the centuries and generations. The transmission of transgenerational trauma has impacted this community’s mental health, physical well-being, educational performance, and interpersonal interactions. Prior research has focused on general trauma and its effect on Black women; however, this review sought to explore transgenerational trauma and the implications of attachment and parenting styles of Black women. Previous studies have examined the majority population’s attachment, trauma, and parenting styles consecutively, though not simultaneously. With limitations found in the research of diverse populations, it is imperative that clinicians are culturally competent to implement effective …

An Evaluation Of Equity And Access For All Students In A School District's Career And Technical Education Programs, Cynthia M. Jaime

Dissertations

There is a great deal of research regarding the need for equity and access in Career and Technical Education (CTE); however, very little research exists acknowledging strategies to achieve it. The purpose of this study was to evaluate equity and access in CTE programs, as well as to determine any barriers to CTE program enrollment, participation, and completion faced by students identified as economically challenged, students with disabilities, or English language learners. The context of this inquiry was high school CTE programs in one school district in the United States of America. My study demonstrates both qualitative and quantitative data …

The Necessity And Possibility Of Decolonizing The Understanding Of Chinese-Ness, Tao Zhang

Dissertations

In this dissertation, I explore how crossing national borders has made me aware of the many identity borders that I have crossed as a transnational Chinese, and how I am caught up in identity politics between the “Chinese,” who do not necessarily always identify as “Chinese” in the transnational context. However, as a racialized group in the U.S., transnational Chinese are perceived as a homogeneous population, usually through racially (“Yellow Peril” or “Chinese Virus”) and politically (“Red Scare”) charged lenses measured by Western/U.S. binaristic and hierarchical standards. Therefore, in this research project, I problematize dominant U.S. race logic, i.e., the …

A Grounded Theory Analysis Of Black African International Students’ Racial Identity Development, Maame Coleman

Dissertations

This study was designed to explore how Black African international students develop an understanding of their racial identity within the U.S. context. Although there has been considerable previous theoretical and empirical work examining the process of racial identity development (e.g. Cross, 1971; Sellers et al.1998), which has provided foundation for how we continue to understand how U.S. racial minorities develop their racial identities. However, there is a paucity of research on the racial identity development process of non-U.S. born Black people (Hocoy, 1999; Asante, 2012). Even less is known about the role that intersectionality of other identities plays in the …

A Behavior Genetic Study Of Activity Levels And Internalizing Problems Across Childhood, Matthew Jamnik

Dissertations

This study used a twin and triplet sample to investigate the influence of preschoolers’ physical activity levels and internalizing problems on subsequent health outcomes (body-mass index, internalizing behavior problems, household health behaviors) in middle childhood. The potential influence of stressors salient in childhood (household chaos, socioeconomic status, stressful life events) on the hypothesized relationship between physical activity and internalizing on health was also explored. A specific focus was placed on examining the underlying genetic and environmental influences of children’s physical activity levels, as assessed by both temperamental (parent-reported) activity levels and observed (in-lab) motor behavior, using a behavioral genetic approach. …

Tasting Tea, Tasting China: Tearooms And The Everyday Culture In Dalian, Yingkun Hou

Dissertations

Tea is a beverage that has long been taken to symbolize a key aspect of Chinese tradition and history. However, it is one of many beverages drunk in contemporary China, where in recent times knowledge of wine has come to stand for the West and as a much-desired cultural capital. This dissertation examines everyday tea drinking and tea tasting in Dalian—a northeastern city in Liaoning Province, China. Through ethnography of practices, processes, and interactions taking place in daily events of tea drinking and tasting, this dissertation provides a window into social conflicts, ideas and desires, historical consciousness, and national identity, …

Use Of Live And Robotic Assistance Animals For Psychological And Cognitive Health In Military Populations, Rachelle M. Cross

Dissertations

This literature review addresses the use of live and robotic animal-assisted therapy for psychological and cognitive health in military populations. More specifically, this literature review aims to address the benefits and limitations of the use of live animal-assisted therapy, complementary and alternative techniques (i.e., Combat and Emotional Stress Control Dogs and social robots) for military personnel, and possible attitudinal barriers regarding active duty and veteran soldiers, while utilizing literature conducted with the civilian population to augment. A systematic review of peer-reviewed quantitative and qualitative publications and book chapters was utilized to accomplish this. Results of the literature review indicated that …

Gender Differences In The Clinical Presentation Of Borderline Personality Disorder: A Review, Kimberly Glover

Dissertations

Borderline personality disorder is diagnosed in women three times more than men and represents a significant gender disparity amid considerable stigmatization compared to other psychological disorders. Empirical studies have investigated the gender prevalence for borderline personality disorder and further determined that findings may be due to differences in how borderline personality disorder clinically manifests in men and women. Common areas of investigation have included developmental features, diagnostic symptomology, psychiatric comorbidities, and the level of functional impairment for individuals with borderline personality disorder. An analysis of existing data was indicative of shortcomings in methods that include small samples of men, a …

Understanding A Familial Mentorship Model In Cultivation Of Leaders Who Serve, Herald Chip Johnson

Dissertations

This study was designed to explore a lineage of leadership enacted through mentoring from individuals with respected reputations for excellence in leadership. Using a narrative inquiry approach, I explored how I used knowledge gained from past mentors to inform future leadership actions and decisions based on the examples through their leadership. An exploration of leadership models uncovered the interconnectivity among the life of the mentor, the lessons passed on to the mentee, and the manner in which the story is told. Resonant leadership, transformative leadership, and servant leadership theory provided the theoretical framework used to analyze in-depth interviews in which …

Secondary Traumatic Stress In Intimate Partners And Children Of Service Members, Amber Foreman

Dissertations

This literature review addresses secondary traumatic stress (STS) in intimate partners and children of service members. More specifically, this literature review aims to explore if intimate partners and children of military service members are at risk for developing secondary traumatic stress. Secondly, this review aims to explore if there are specific risk factors associated with the development of secondary traumatic stress in intimate partners and children of service members. Finally, this review examines if there are other stressors and outcomes for intimate partners and children of service members. A systematic review of peer-reviewed research was explored to accomplish addressing the …

Building Support Systems For High School English Language Learners: A Developmental Program Evaluation, Manuel Ferreras

Dissertations

The graduation rate of English Language Learners (ELL) is lagging behind the general school population graduation rate. The purpose of this study is to address the needs of ELL students for improving the graduation rate of ELL students. The context of this inquiry is a high school with a large ELL population located in one of the state’s largest school districts. My study demonstrates outcomes of a lack of a shared vision and attention by the school administrators on addressing the needs of ELL students, ineffective remediation strategies and tools used to guide ELL students, and the potential impact high-stakes …

Life Is Complicated: The Urgent Call To Support Student Wellbeing Through Social Emotional Learning, Taya Kinzie

Dissertations

Abstract:

Students face increased mental health challenges, including depression, anxiety, trauma, racial trauma, and suicide risk, in addition to opportunity gaps. Despite educators’ work to support students through mental health services and despite the existence of social emotional learning (SEL) programs within the school environment, the impact on student learning and long-term post high school outcomes can feel overwhelming. There is also a perception that the responsibility for SEL belongs only to social workers, psychologists and counselors. The primary research question is; how does embedding of SEL practices vary within instructional, non-instructional, and leadership roles? The related questions are: to …

Soft Camel Milk Cheese Effects Of Coagulants And Processing Conditions, Mustapha Mbye

Dissertations

In recent years, camel milk (CM) has been acknowledged for several health benefits, including anti-diabetic, hypoallergic, and other effects. Accordingly, CM may provide a complementary or a healthier alternative to bovine milk (BM). This has led to increased interest in processing CM to products like cheese, yogurt, and powders to extend its shelf-life. However, CM is difficult to coagulate into hard gels, affecting its cheese quality and consumer preference. The current research aimed to investigate the impact of different coagulants (chymosin, Withania coagulans, citric and acetic acid) on CM cheese quality and sensory attributes compared to BM cheese. It …

Body Image Distress And Post Mastectomy Women, Ashley Ceithaml

Dissertations

Body image and breast cancer are closely associated in women who undergo unilateral or bilateral mastectomies. The literature has shown that even if women undergo reconstruction, they still experience adverse side effects with surgery or body image disturbances that may persist for years, affecting their quality of life. It is important for providers to recognize patients experiencing issues with body image distress and be able to provide appropriate care.

The purpose of this quality improvement project is to evaluate body image scores in women who have undergone breast cancer mastectomy within the past five years and educate those who admit …

Reducing Acute Care Hospital Setting Inpatient Falls With Implementation Of Hourly Rounding: A Quality Improvement Project, Courtney Delaparte

Dissertations

Falls in the acute care setting can lead to serious patient injuries. Despite continued efforts to reduce falls, falls are still a common occurrence. One strategy that has been identified as promoting patient safety, including the prevention of falls, is that of hourly rounding. This quality improvement project implemented hourly rounding utilizing the AHRQ's 3B: Scheduled Rounding Protocol on a 48-bed telemetry unit to study the effects on fall reduction. Comparison of fall rates prior to the implementation of hourly rounding to that after hourly rounding was incorporated into practice, showed a reduction; however, the reduction of fall rates was …

Effects Of Thermal And Non-Thermal Methods On The Chemical Composition And Bacterial Inactivation Of Camel Milk, Namariq Dhahir

Dissertations

Understanding the composition of camel milk coupled with studying the effects of thermal and non-thermal treatments on its components and bacterial inactivation were the general objectives of this dissertation. In the first study (Chapter 2), the gross composition of camel milk including milk protein, fat, casein, total solids, lactose, ash, and mineral content were analyzed. In addition, fatty acid profile, amino acid profile, protein fractions, and volatile compounds were evaluated as well. Our results revealed that camel milk has its unique nutrients profile. These findings make it easier for the researchers and consumers to understand some of the nutritional attributes …

United States’ Domestic Trade And Domestic Migration During 1993 - 2017 : The Role Of Politics, Foreign Import, And Size, Nawaraj Sharma Paudel

Dissertations

In the present dissertation, we study the United States’ domestic trade and domesticmigration with special focus on Politics, Foreign Import and Size. This study sheds light on the literature of International Economics, Regional Economics, and Development Economics. In Chapter 1, using a Gravity model for trade between the U.S. states and employing CFS data of the year 1993 - 2017, we find that politically and economically similar states trade more among themselves. We use three different definitions of political similarity based on election outcomes, and they all give similar results. For economic similarities, we follow the literature on Linder’s hypothesis. …

Los Graduados; Factors Affecting First-Generation Hispanic Males Attainment Of A Terminal Degree, Frank Figueroa

Dissertations

Purpose: The purpose of this phenomenological study was to understand and explore factors that led to the attainment of a terminal degree as perceived by first generation Hispanic males in Southern California. A secondary purpose of the study was to determine, of the factors identified, which were perceived to have the greatest impact on attainment of a terminal degree by first generation Hispanic males in Southern California.

Methodology: This phenomenological study collected data via semi-structured interviews and review of artifacts. The study sample involved 13 First-Generation Hispanic Males in Southern California who have attained a terminal degree. Bandura’s Self-Efficacy Theory …

Short-Term Crash Risk Prediction Considering Proactive, Reactive, And Driver Behavior Factors, Sina Darban Khales

Dissertations

Providing a safe and efficient transportation system is the primary goal of transportation engineering and planning. Highway crashes are among the most significant challenges to achieving this goal. They result in significant societal toll reflected in numerous fatalities, personal injuries, property damage, and traffic congestion. To that end, much attention has been given to predictive models of crash occurrence and severity. Most of these models are reactive: they use the data about crashes that have occurred in the past to identify the significant crash factors, crash hot-spots and crash-prone roadway locations, analyze and select the most effective countermeasures for reducing …

Colloidal Quantum Dot (Cqd) Based Mid-Wavelength Infrared Optoelectronics, Shihab Bin Hafiz

Dissertations

Colloidal quantum dot (CQD) photodetectors are a rapidly emerging technology with a potential to significantly impact today’s infrared sensing and imaging technologies. To date, CQD photodetector research is primarily focused on lead-chalcogenide semiconductor CQDs which have spectral response fundamentally limited by the bulk bandgap of the constituent material, confining their applications to near-infrared (NIR, 0.7-1.0 um) and short-wavelength infrared (SWIR, 1-2.5 um) spectral regions. The overall goal of this dissertation is to investigate a new generation of CQD materials and devices that advances the current CQD photodetector research toward the technologically important thermal infrared region of 3-5 ?m, known as …

On Non-Linear Network Embedding Methods, Huong Yen Le

Dissertations

As a linear method, spectral clustering is the only network embedding algorithm that offers both a provably fast computation and an advanced theoretical understanding. The accuracy of spectral clustering depends on the Cheeger ratio defined as the ratio between the graph conductance and the 2nd smallest eigenvalue of its normalizedLaplacian. In several graph families whose Cheeger ratio reaches its upper bound of Theta(n), the approximation power of spectral clustering is proven to perform poorly. Moreover, recent non-linear network embedding methods have surpassed spectral clustering by state-of-the-art performance with little to no theoretical understanding to back them.

The dissertation includes work …

Advances In Modeling Gas Adsorption In Porous Materials For The Characterization Applications, Max A. Maximov

Dissertations

The dissertation studies methods for mesoporous materials characterization using adsorption at various levels of scale and complexity. It starts with the topic introduction, necessary notations and definitions, recognized standards, and a literature review.

Synthesis of novel materials requires tailoring of the characterization methods and their thorough testing. The second chapter presents a nitrogen adsorption characterization study for silica colloidal crystals (synthetic opals). These materials have cage-like pores in the range of tens of nanometers. The adsorption model can be described within a macroscopic approach, based on the Derjaguin-Broekhoff-de Boer (DBdB) theory of capillary condensation. A kernel of theoretical isotherms is …

Exploring, Understanding, Then Designing: Twitter Users’ Sharing Behavior For Minor Safety Incidents, Mashael Yousef Almoqbel

Dissertations

Social media has become an integral part of human lives. Social media users resort to these platforms for various reasons. Users of these platforms spend a lot of time creating, reading, and sharing content, therefore, providing a wealth of available information for everyone to use. The research community has taken advantage of this and produced many publications that allow us to better understand human behavior. An important subject that is sometimes discussed and shared on social media is public safety. In the past, Twitter users have used the platform to share incidents, share information about incidents, victims and perpetrators, and …

Gradient Free Sign Activation Zero One Loss Neural Networks For Adversarially Robust Classification, Yunzhe Xue

Dissertations

The zero-one loss function is less sensitive to outliers than convex surrogate losses such as hinge and cross-entropy. However, as a non-convex function, it has a large number of local minima, andits undifferentiable attribute makes it impossible to use backpropagation, a method widely used in training current state-of-the-art neural networks. When zero-one loss is applied to deep neural networks, the entire training process becomes challenging. On the other hand, a massive non-unique solution probably also brings different decision boundaries when optimizing zero-one loss, making it possible to fight against transferable adversarial examples, which is a common weakness in deep learning …

Solar Flares As Observed In The Low Frequency Microwave Gyrosynchrotron Emission, Shaheda Begum Shaik

Dissertations

Solar flares involve the sudden catastrophic release of magnetic energy stored in the Sun’s corona. This dissertation focuses on investigating the low frequency, optically-thick gyrosynchrotron emission during solar flares for its spatial and spectral dynamics, characteristics, and role in the flare process.

The first part of this dissertation first addresses the spectral dynamics and characteristics of the source morphology. The high-resolution spectra of a set of microwave bursts observed by the Expanded Owens Valley Solar Array (EOVSA) during its commissioning phase in the 2.5-18 GHz frequency range with 1-s time resolution are presented here. Out of the 12 events analyzed …

Multi-Stage Stochastic Optimization And Reinforcement Learning For Forestry Epidemic And Covid-19 Control Planning, Sabah Bushaj

Dissertations

This dissertation focuses on developing new modeling and solution approaches based on multi-stage stochastic programming and reinforcement learning for tackling biological invasions in forests and human populations. Emerald Ash Borer (EAB) is the nemesis of ash trees. This research introduces a multi-stage stochastic mixed-integer programming model to assist forest agencies in managing emerald ash borer insects throughout the U.S. and maximize the public benets of preserving healthy ash trees. This work is then extended to present the first risk-averse multi-stage stochastic mixed-integer program in the invasive species management literature to account for extreme events. Significant computational achievements are obtained using …

The Interplay Of The Physical Landscape And Social Dynamics In Shaping Movement Of African Savanna Elephants (Loxodonta Africana), Maggie Wisniewska

Dissertations

Free ranging African savanna elephants (Loxodonta africana) are increasingly impacted by human-induced habitat loss and poaching for ivory. Because elephants live in tightly knit groups, this combination of threats not only reduces the size of their populations but also degrades their social interactions. Long-term relationships with socially competent individuals, such as experienced seniors, benefit the ability of other group members to access limiting resources and avoid danger. Understanding how anthropogenic pressure may affect persistence of elephant populations is important, because elephants are an economically important keystone species. This doctoral thesis characterizes how individual elephants influence the movement of their social …

Towards Adversarial Robustness With 01 Lossmodels, And Novel Convolutional Neural Netsystems For Ultrasound Images, Meiyan Xie

Dissertations

This dissertation investigates adversarial robustness with 01 loss models and a novel convolutional neural net systems for vascular ultrasound images.

In the first part, the dissertation presents stochastic coordinate descent for 01 loss and its sensitivity to adversarial attacks. The study here suggests that 01 loss may be more resilient to adversarial attacks than the hinge loss and further work is required.

In the second part, this dissertation proposes sign activation network with a novel gradient-free stochastic coordinate descent algorithm and its ensembling model. The study here finds that the ensembling model gives a high minimum distortion (as measured by …