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Disentangling The Complex Evolutionary History Of Invasive Russian Thistle: Phylogenetic Relationships, The Role Of Hybridization, And Public Engagement, Deva Raj Khanal Jan 2022

Disentangling The Complex Evolutionary History Of Invasive Russian Thistle: Phylogenetic Relationships, The Role Of Hybridization, And Public Engagement, Deva Raj Khanal

Electronic Theses and Dissertations

Invasive species are forces of environmental, economic, and social change with detrimental impacts on ecosystems, commerce, agriculture, and human health. However, we still have a poor understanding of the processes that could be driving invasive potential. Hybridization may contribute to the establishment and spread of invasive lineages, as it may enhance genetic variation and facilitate rapid adaptation. Focusing on Russian thistle (Salsola tragus s.l., family Amaranthaceae) and closely related species, my thesis aims to clarify phylogenetic relationships and investigate how hybridization has shaped the invasion dynamics of these lineages. Known as one of the fastest plant invasions in the United …

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Prairie Cordgrass Cellulose: A Sustainable Resource To Develop Biodegradable Films, Mominul Hoque Jan 2022

Prairie Cordgrass Cellulose: A Sustainable Resource To Develop Biodegradable Films, Mominul Hoque

Electronic Theses and Dissertations

Plastics are versatile and cost-effective materials with a wide variety of functionalities. Their non-biodegradability, however, is an environmental concern. Plastic waste accumulation in landfills and natural habitats results in health issues, mainly due to the leaching of chemicals from plastic products that further transfer to humans and wildlife. Many countries around the globe have imposed restrictions on plastic use. Despite these concerted efforts, a pressing scientific need exists to find an alternative to plastics. Cellulose from abundant agricultural biomass stands out as a viable alternative due to its robust structure, biocompatibility, biodegradability, low density, and non-toxicity. This research aims to …

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A Post-Pneumonia Epizootic Evaluation Of The Rapid City, South Dakota Bighorn Sheep Herd, Amanda N. Ensrud Jan 2022

A Post-Pneumonia Epizootic Evaluation Of The Rapid City, South Dakota Bighorn Sheep Herd, Amanda N. Ensrud

Electronic Theses and Dissertations

Pneumonia is a major factor affecting populations of free-ranging bighorn sheep (Ovis canadensis) across western North America. Pneumonia can occur in large-scale epizootics, during which greater than half of the population typically dies. After these epizootics, surviving ewes continue to conceive and bear lambs. However, lamb recruitment may remain low due to periodic or annual pneumonia outbreaks causing high lamb mortality rates, sometimes greater than 90%. Our study focused on the Rapid City, South Dakota bighorn sheep (BHS) herd that has recorded pneumonia-induced population decline since 2009. The first objective was to improve lamb health and survival by identifying and …

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Post-Fledging Habitat Selection And Movements Of Juvenile Mallards In The Prairie Pothole Region, Cynthia E. Anchor Jan 2022

Post-Fledging Habitat Selection And Movements Of Juvenile Mallards In The Prairie Pothole Region, Cynthia E. Anchor

Electronic Theses and Dissertations

The Prairie Pothole Region (PPR) of North America provides critical habitat for waterfowl across life stages, but anthropogenic changes to the landscape have negatively impacted habitat quality for waterfowl. The mallard (Anas platyrhynchos) is abundant and socioeconomically valuable in the PPR, as it is a preferred target species of waterfowl hunters. Extensive research has evaluated breeding ecology of mallards in the PPR, but the period between juvenile mallards fledging and migrating has rarely been studied. The post-fledging ecology of juvenile mallards is a vital consideration for comprehensive waterfowl management. Further, juvenile mallards are a significant portion of hunter harvest at …

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Covid-19, Churches, And Culture Wars, John D. Inazu Jan 2022

Covid-19, Churches, And Culture Wars, John D. Inazu

Scholarship@WashULaw

The First Amendment’s Free Exercise Clause often requires courts to balance competing interests of the highest order. On the one hand, the Constitution recognizes the free exercise of religion as a fundamental right. On the other hand, the government sometimes has compelling reasons for limiting free exercise, especially in situations involving dangers to health and safety. The shutdown and social distancing orders issued during the early phases of the COVID-19 pandemic not only restricted free exercise but also limited what many people consider to be the core of that exercise: religious worship. But the orders did so in order to …

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Judge Theodore Mcmillian: Beacon Of Hope And Champion For Justice, Karen L. Tokarz Jan 2022

Judge Theodore Mcmillian: Beacon Of Hope And Champion For Justice, Karen L. Tokarz

Scholarship@WashULaw

“Judge Theodore McMillian: Beacon of Hope and Champion for Justice” illuminates the heroic groundbreaking accomplishments of Judge McMillian, who was a trailblazer in Missouri courts. Judge McMillian was Missouri’s first Black judge to sit on the state circuit court, state appellate court, and federal appellate court. Professor Tokarz traces Judge McMillian’s early life and career to demonstrate his life-long dedication to challenging disparities in the community and in the legal system. She discusses the Judge’s role on the St. Louis City Circuit Court, especially the Juvenile Court where he pushed for the expansion of constitutional rights for juveniles; his groundbreaking …

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Asian/Americans: Model Students, Disempowered Citizens, Sueshin Sarah Moon Jan 2022

Asian/Americans: Model Students, Disempowered Citizens, Sueshin Sarah Moon

Student Scholarship

No abstract provided.

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Stand Your Ground: Black Women And Perceived Gender Schema Trangessions, Chelsey Minerva Sarante Jan 2022

Stand Your Ground: Black Women And Perceived Gender Schema Trangessions, Chelsey Minerva Sarante

Student Scholarship

No abstract provided.

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Defenses Against Herbivory Show A Latitudinal Gradient In Asclepias Syriaca, Barlow R. Wagner Jan 2022

Defenses Against Herbivory Show A Latitudinal Gradient In Asclepias Syriaca, Barlow R. Wagner

Student Scholarship

No abstract provided.

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Female Domestic Literary Horror Through The Lens Of The Contemporary Work Of Carmen Maria Machado, Cassidy Crane Jan 2022

Female Domestic Literary Horror Through The Lens Of The Contemporary Work Of Carmen Maria Machado, Cassidy Crane

Student Scholarship

No abstract provided.

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Criminal Justice Expertise, Benjamin Levin Jan 2022

Criminal Justice Expertise, Benjamin Levin

Scholarship@WashULaw

For decades, commentators have adopted a story of mass incarceration’s rise as caused by “punitive populism.” Growing prison populations, expanding criminal codes, and raced and classed disparities in enforcement result from “pathological politics”: voters and politicians act in a vicious feedback loop, driving more criminal law and punishment. The criminal system’s problems are political. But how should society solve these political problems? Scholars often identify two kinds of approaches: (1) the technocratic, which seeks to wrest power from irrational and punitive voters, replacing electoral politics with agencies and commissions; and (2) the democratic, which treats criminal policy as insufficiently responsive …

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Criminal Law Exceptionalism, Benjamin Levin Jan 2022

Criminal Law Exceptionalism, Benjamin Levin

Scholarship@WashULaw

For over half a century, U.S. prison populations have ballooned and criminal codes have expanded. In recent years, a growing awareness of mass incarceration and the harms of criminal law across lines of race and class has led to a backlash of anti-carceral commentary and social movement energy. Academics and activists have adopted a critical posture, offering not only small-bore reforms, but full-fledged arguments for the abolition of prisons, police, and criminal legal institutions. Where criminal law was once embraced by commentators as a catchall solution to social problems, increasingly it is being rejected, or at least questioned. Instead of …

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Breaking The Mold: Haunted Attraction Mazes; A Study In Reducing Predictability & Increasing Intensity, Within Unconventional Halloween Attraction Experiences, Amy Avalos Jan 2022

Breaking The Mold: Haunted Attraction Mazes; A Study In Reducing Predictability & Increasing Intensity, Within Unconventional Halloween Attraction Experiences, Amy Avalos

Electronic Theses and Dissertations, 2020-2023

Every enchanted Fall season, a segment of the public flocks to a multitude of haunted Halloween attractions across the U.S., to experience fear as a form of amusement and entertainment. Psychologists continue to research the physiological and cognitive behaviors that are associated with fear and the "fight or flight" responses that are triggered when individuals are engaged in a heighten sense of danger. However, as guests traverse through these haunted attraction experiences, it's commonplace for guests to enter into these typical modes of "fight or flight" behaviors very quickly. Once this response kicks in, the guests' instinct is to scramble …

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A Theoretical Prototype For Narrative And Interactive Development Within A Theme Park Parade, Carson Luter Jan 2022

A Theoretical Prototype For Narrative And Interactive Development Within A Theme Park Parade, Carson Luter

Electronic Theses and Dissertations, 2020-2023

While theme park parades have developed with technology and guest demands, there is an opportunity to continue innovating the medium with additional guest interactivity. This thesis tracks experiential comparatives that provide iterative components to be utilized for a new theme park parade concept; parade "show stops" that allow for guests to approach the parade floats up-close, participatory entertainment offerings with live actor-driven branching narratives, roleplay and gameplay-driven interactive experiences, and theme park parades that follow a direct linear narrative. What follows is a theme park parade design concept, accompanied by a production and operational plan, that combines the existing spectacle …

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Utilizing Dramaturgy To Activate Creativity In Young Audiences, Joni Newman Jan 2022

Utilizing Dramaturgy To Activate Creativity In Young Audiences, Joni Newman

Electronic Theses and Dissertations, 2020-2023

Theatre for Young Audiences companies in the United States rely heavily on recognized titles to bring in audiences. As a result, most of their productions are adapted from recognizable titles, including films, television series, and popular literature. These adaptations draw audiences in that may not otherwise go to the theatre, which is especially important within the world of TYA where the target audience (children) only gains access to a theatre through adult caregivers. Additionally, most children go to the theatre as part of school field trips, further encouraging season selections that will fill educational needs in addition to providing theatrical …

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Regulation, Targets And Functions Of Chk, Shudong Zhu, Rong Sun, Xialing Guo, Yuanwu Bao, Dianzheng Zhang Jan 2022

Regulation, Targets And Functions Of Chk, Shudong Zhu, Rong Sun, Xialing Guo, Yuanwu Bao, Dianzheng Zhang

PCOM Scholarly Works

Src family kinases (SFKs) play pivotal roles in multiple signaling pathways (Yeatman, 2004). SFK activity is inhibited by phosphorylation at its C-terminal tyrosine, by CSK (C-terminal Src kinase) and CHK (CSK-homologous kinase). CHK expression is restricted to normal hematopoietic cells, brain, and colon tissues. Downregulation of CHK in brain and colon tumors contributes to tumorigenicity in these tissues. CHK does not phosphorylate Src efficiently, however, in contrast to CSK, CHK inhibits Src kinase activity allosterically. Although the functions of CHK are still largely unknown, potential substrates of CHK including β-synuclein, α-tubulin, α-spectrin, 14-3-3, and Hsp90 have been identified. CHK is …

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Artificially Intelligent Boards And The Future Of Delaware Corporate Law, Christopher Bruner Jan 2022

Artificially Intelligent Boards And The Future Of Delaware Corporate Law, Christopher Bruner

Scholarly Works

The prospects for Artificial Intelligence (AI) to impact the development of Delaware corporate law are at once over- and under-stated. As a general matter, claims to the effect that AI systems might ultimately displace human directors not only exaggerate the foreseeable technological potential of these systems, but also tend to ignore doctrinal and institutional impediments intrinsic to Delaware's competitive model – notably, heavy reliance on nuanced and context-specific applications of the fiduciary duty of loyalty by a true court of equity. At the same time, however, there are specific applications of AI systems that might not merely be accommodated by …

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Promising Findings That The Cultivating Healthy Intentional Mindful Educators’ Program (Chime) Strengthens Early Childhood Teachers’ Emotional Resources: An Iterative Study, Holly Hatton-Bowers, Caron Clark, Gilbert R. Parra, Jessica L. Calvi, Michael Yellow Bird, Pearl Avari, Jaclynn Foged, John Smith Jan 2022

Promising Findings That The Cultivating Healthy Intentional Mindful Educators’ Program (Chime) Strengthens Early Childhood Teachers’ Emotional Resources: An Iterative Study, Holly Hatton-Bowers, Caron Clark, Gilbert R. Parra, Jessica L. Calvi, Michael Yellow Bird, Pearl Avari, Jaclynn Foged, John Smith

Department of Child, Youth, and Family Studies: Faculty Publications

Findings suggest that an eight-week mindfulness compassion-based program, Cultivating Healthy Intentional Mindful Educators (CHIME), is a feasible professional development intervention for early childhood (EC) teachers to support their emotion regulation and psychological and workplace well-being. We offer preliminary evidence that learning about mindfulness, self-compassion, and social-emotional learning supports EC teachers in strengthening their knowledge and application of practices to be more mindful and less emotionally reactive and emotionally exhausted at work. In analyzing both EC teacher feedback and survey data from two pilot studies, there was promising evidence that participating in CHIME enhanced awareness of emotions and the development of …

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Phenomic And Genetic Controls Of The Drought Stress Response In Sorghum, Melissa A. Lehrer Jan 2022

Phenomic And Genetic Controls Of The Drought Stress Response In Sorghum, Melissa A. Lehrer

Graduate Theses, Dissertations, and Problem Reports (ETD)

Drought, one of the most common abiotic stressors, is a result of the precipitation and temperature fluctuations influenced by climate change. As consistent weather patterns are crucial for the maintenance of crop yield, drought threatens food security through its impact on plant growth and development. It is essential to ensure the quality, availability, and affordability of grain-based products in the face of climate change due to expectations of population growth. Therefore, shedding light on the mechanisms associated with drought tolerance is integral to maintaining agricultural production under water-limited conditions. My dissertation work aimed to uncover the morphological, physiological, and genetic …

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Assessment Of User Environmental Perceptions Associated With Gray's Reef National Marine Sanctuary, Marieke Johanna Lemmen Jan 2022

Assessment Of User Environmental Perceptions Associated With Gray's Reef National Marine Sanctuary, Marieke Johanna Lemmen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Resource management in marine protected areas is confronted with the challenging conflict of use and conservation of resources. Increased visitation in marine environments has led to the need of management due to negative ecological and social impacts. Understanding environmental values, attitudes, and perceptions is important to the success of environmental protection. Using online surveys sent via Qualtrics asking questions regarding the users’ knowledge, attitudes, and perceptions of ocean resources, goods and services, this research is focusing on identifying user profiles and understanding their environmental perception associated with Gray’s Reef National Marine Sanctuary, an offshore marine protected area, and surrounding coastal …

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Are Constitutional Rights Enough? An Empirical Assessment Of Racial Bias In Police Stops, Michael Frakes, Rohit Asirvatham Jan 2022

Are Constitutional Rights Enough? An Empirical Assessment Of Racial Bias In Police Stops, Michael Frakes, Rohit Asirvatham

Faculty Scholarship

This Article empirically tests the conventional wisdom that a permissive constitutional standard bearing on pretextual traffic stops—such as the one announced by the Supreme Court in Whren v. United States—contributes to racial disparities in traffic stops. To gain empirical traction on this question, we look to state constitutional law. In particular, we consider a natural experiment afforded by changes in the State of Washington’s rules regarding traffic stops. Following Whren, the Washington Supreme Court first took a more restrictive stance than the U.S. Supreme Court, prohibiting pretextual stops by police officers, but later reversed course and instituted a laxer standard, …

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Citizenship Disparities, Emily Ryo, Reed Humphrey Jan 2022

Citizenship Disparities, Emily Ryo, Reed Humphrey

Faculty Scholarship

No abstract provided.

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“Second-Class" Rhetoric, Ideology, And Doctrinal Change, Eric Ruben, Joseph Blocher Jan 2022

“Second-Class" Rhetoric, Ideology, And Doctrinal Change, Eric Ruben, Joseph Blocher

Faculty Scholarship

A common refrain in current constitutional discourse is that lawmakers and judges are systematically disfavoring certain rights. This allegation has been made about the rights to free speech and free exercise of religion, but it is most prominent in debates about the right to keep and bear arms. Such “second-class” treatment, the argument goes, signals that the Supreme Court must intervene aggressively to police the disrespected rights. Past empirical work casts doubt on the descriptive claim that judges and policymakers are disrespecting the Second Amendment, but that simply highlights how little we know about how the second-class argument functions as …

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Rural Parent's Experiences Of Stress And Resilience During The Covid-19 Pandemic And School Closure, Emily Wilson, Jungwon Eum, Yuenjung Joo, Martinique A. Sealy, Jentry Stoneman Barrett, Gwen C. Nugent, Joan M. Carraher, Angela G. Hinrichs Jan 2022

Rural Parent's Experiences Of Stress And Resilience During The Covid-19 Pandemic And School Closure, Emily Wilson, Jungwon Eum, Yuenjung Joo, Martinique A. Sealy, Jentry Stoneman Barrett, Gwen C. Nugent, Joan M. Carraher, Angela G. Hinrichs

Department of Child, Youth, and Family Studies: Faculty Publications

The COVID-19 pandemic has generated social and economic disruptions, resulting in cascading effects on the health and well- being of global citizens. However, little research has focused on how COVID-19 has affected rural regions, despite rurality being a critical factor for understanding community impact and response to the pandemic. The purpose of this phenomenological study was to explore the experiences of rural Nebraskan parents with young children during the COVID-19 pandemic and school shutdown, and the strategies they used to support their families during that time. We conducted individual and group interviews with 22 white, non-Hispanic mothers living in rural …

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If Found: Exploring Death Through Animated Media, Hannah Huffman Jan 2022

If Found: Exploring Death Through Animated Media, Hannah Huffman

Electronic Theses and Dissertations, 2020-2023

If Found is a narrative 2D animated short film that explores our connection with death. The film makes use of the conventions of a Western fairy tale setting to make this difficult topic more digestible. This works in conjunction with the East Asian storytelling format of Kishotenketsu, a narrative convention focused on a conflict-less plot. Death is not something we can defeat; rather, it is a natural force with which we all must make peace. By following this traditional format, the film also explores and shows appreciation for the impacts of East Asian thought, storytelling, and animation on Western culture. …

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Authoring Tools For Augmented Reality Scenario Based Training Experiences, Andres Vargas Gonzalez Jan 2022

Authoring Tools For Augmented Reality Scenario Based Training Experiences, Andres Vargas Gonzalez

Electronic Theses and Dissertations, 2020-2023

Augmented Reality's (AR) scope and capabilities have grown considerably in the last few years. AR applications can be run across devices such as phones, wearables, and head-mounted displays (HMDs). The increasing research and commercial efforts in HMDs capabilities allow end users to map a 3D environment and interact with virtual objects that can respond to the physical aspects of the scene. Within this context, AR is an ideal format for in-situ training scenarios. However, building such AR scenarios requires proficiency in game engine development environments and programming expertise. These difficulties can make it challenging for domain experts to create training …

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Improved Reptile Search Optimization Algorithm Using Chaotic Map And Simulated Annealing For Feature Selection In Medical Filed, Zenab Elgamal, Aznul Qalid Md Sabri, Mohammad Tubishat, Dina Tbaishat, Sharif Naser Makhadmeh, Osama Ahmad Alomari Jan 2022

Improved Reptile Search Optimization Algorithm Using Chaotic Map And Simulated Annealing For Feature Selection In Medical Filed, Zenab Elgamal, Aznul Qalid Md Sabri, Mohammad Tubishat, Dina Tbaishat, Sharif Naser Makhadmeh, Osama Ahmad Alomari

All Works

The increased volume of medical datasets has produced high dimensional features, negatively affecting machine learning (ML) classifiers. In ML, the feature selection process is fundamental for selecting the most relevant features and reducing redundant and irrelevant ones. The optimization algorithms demonstrate its capability to solve feature selection problems. Reptile Search Algorithm (RSA) is a new nature-inspired optimization algorithm that stimulates Crocodiles’ encircling and hunting behavior. The unique search of the RSA algorithm obtains promising results compared to other optimization algorithms. However, when applied to high-dimensional feature selection problems, RSA suffers from population diversity and local optima limitations. An improved metaheuristic …

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Haptic Feedback To Assist Blind People In Indoor Environment Using Vibration Patterns, Shah Khusro, Babar Shah, Inayat Khan, Sumayya Rahman Jan 2022

Haptic Feedback To Assist Blind People In Indoor Environment Using Vibration Patterns, Shah Khusro, Babar Shah, Inayat Khan, Sumayya Rahman

All Works

Feedback is one of the significant factors for the mental mapping of an environment. It is the communication of spatial information to blind people to perceive the surroundings. The assistive smartphone technologies deliver feedback for different activities using several feedback mediums, including voice, sonification and vibration. Researchers 0have proposed various solutions for conveying feedback messages to blind people using these mediums. Voice and sonification feedback are effective solutions to convey information. However, these solutions are not applicable in a noisy environment and may occupy the most important auditory sense. The privacy of a blind user can also be compromised with …

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Using Interactive Technology To Develop Preservice Teachers’ Steam Competencies In Early Childhood Education Program, Areej Elsayary, Rana Zein, Lani San Antonio Jan 2022

Using Interactive Technology To Develop Preservice Teachers’ Steam Competencies In Early Childhood Education Program, Areej Elsayary, Rana Zein, Lani San Antonio

All Works

Using interactive technology leads to an interactive learning environment where learners develop their STEAM competencies, including critical thinking, collaboration, communication, creativity and innovation, self-direction, connection, and the use of interactive technology tools effectively. This research aims to investigate the use of interactive technology in developing preservice teachers’ STEAM competencies. The participants were preservice teachers (n=80) in an early childhood education program at a Federal University in the United Arab Emirates. An explanatory sequential mixed-method approach used quantitative analysis (quasi-experiment) followed by a qualitative approach (a focus group discussion was conducted). An online survey was used to collect the quantitative data …

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Five Grade 7 Learners' Understanding Of Comprehension Skills At A Quintile 5 School In South Africa, Nomonde Ntshikila, Janet L. Condy, Lawrence Meda, Heather N. Phillips Jan 2022

Five Grade 7 Learners' Understanding Of Comprehension Skills At A Quintile 5 School In South Africa, Nomonde Ntshikila, Janet L. Condy, Lawrence Meda, Heather N. Phillips

All Works

Background: Research into language and reading scores show that South African learners struggle to read for meaning. Many local researchers report on the inadequate teaching training programmes. Teachers cannot teach basic comprehenion skills. Objectives: This research identifies a gap in the research and records an intervention programme designed to engage learners and develop their higher-order comprehension abilities. This research analyses responses from five learners who engaged in a variety of literacy activities to extend their zones of literacy abilities to become independent critical thinkers. Method: An interpretivist paradigm, within a qualitative approach, using a case study design was devised and …

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