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Articles 6271 - 6300 of 74097
Full-Text Articles in Entire DC Network
Usda Wildlife Services Management Efforts At The Grand Forks Wastewater Treatment Plant, Dorothy Celeste Daulton
Usda Wildlife Services Management Efforts At The Grand Forks Wastewater Treatment Plant, Dorothy Celeste Daulton
Theses and Dissertations
Wildlife collisions with aircraft (wildlife strikes) are a costly and dangerous issue. In recent decades, wildlife strikes within airport boundaries have decreased partly due to on-airfield wildlife strike mitigation efforts. Landscape attractants surrounding airfields within an 8 km radius have been found to influence the occurrence of wildlife strikes by increasing wildlife presence and abundance on or near airfields. The effectiveness of mitigation efforts can be increased by extending operations to include landscape features in an 8 km radius from airports. However, not much is known about the long-term effects of wildlife strike mitigation operations when conducted on neighboring properties, …
Analyzing The Effects Of Land Use, Land Cover, And Infrastructure On Water Quality Standards Within The Itasca And St. Louis Moraine Region Of Minnesota., Jamesguy Gierisch
Analyzing The Effects Of Land Use, Land Cover, And Infrastructure On Water Quality Standards Within The Itasca And St. Louis Moraine Region Of Minnesota., Jamesguy Gierisch
Theses and Dissertations
The river and lake systems in the United States are essential to commerce and human existence. A study of the water quality of the upper Mississippi River watershed was conducted within Itasca State Park, Minnesota. This research focused on ten lakes within the perimeter and backcountry parts of the State Park. The focus of this research was the water quality between lakes, the water quality compared to anthropogenic features, and water quality compared with the land cover of its watershed. Water samples were collected from July 2022 through May 2023 and analyzed for selected ions, field parameters of temperature, pH, …
Investigating The Potential Of 3d Concrete Printing For Unreinforced Structures, Alireza Hasani
Investigating The Potential Of 3d Concrete Printing For Unreinforced Structures, Alireza Hasani
Theses and Dissertations
Additive manufacturing in construction has surged in recent years. This thesis explores the advancements of 3D Concrete Printing (3DCP) within additive construction. Through an exhaustive analysis of 137 built projects and various publications, the research synthesizes the states of research and practice of 3DCP technology. It offers insights into key factors influencing 3DCP structural performance, its potential advantages, and challenges. Additionally, the feasibility of employing 3DCP for constructing unreinforced structures, particularly unreinforced concrete pipes, is evaluated through series of experiments. The research aims to ensure compliance with standards and evaluate their suitability for real-world transportation applications by conducting structural, fresh, …
Equipping Leaders To Meet The Essential Needs Of Early Childhood Educators In North Dakota: Sustaining An Engaged And Highly Qualified Early Care And Education Workforce, Beth Heyne
Theses and Dissertations
High-quality early childhood program options are in high demand not only because research has solidified the importance of early childhood experiences on human development but also because most households have all available adults participating in the labor force. Sustainability of the early care and education workforce is a common problem of practice that impacts many early childhood settings, which has only been exacerbated in recent years because of the Covid-19 pandemic. The purpose of this research aims to identify challenges faced by early childhood educators to equip leaders with strategic approaches to increase the likeliness of organizational commitment and engagement …
A Qualitative Case Study Of Students' Of Color Perceptions And Experiences Of Academic Success In College Algebra At Snow College, Melanie Larsen Jenkins
A Qualitative Case Study Of Students' Of Color Perceptions And Experiences Of Academic Success In College Algebra At Snow College, Melanie Larsen Jenkins
Theses and Dissertations
This qualitative case study explored perceptions of learning support and student success, particularly for students of color who had enrolled in a college algebra course. The purpose of this study was primarily to include student voices in the conversations about student success. The study uses a qualitative case study approach in two ways: 1) to interview nine students who found success and students who did not find success in College Algebra to glean information about their personal experiences and perceptions of learning and 2) to interview three professors of College Algebra to understand their pedagogical strategies that are designed to …
A Study Of Forecasted Electromagnetic Path Errors To Determine Potential Impacts On Detect And Avoid Systems For Unmanned Aircraft, Brianna Marie Kump
A Study Of Forecasted Electromagnetic Path Errors To Determine Potential Impacts On Detect And Avoid Systems For Unmanned Aircraft, Brianna Marie Kump
Theses and Dissertations
Temperature, atmospheric pressure, and vapor pressure affect electromagnetic propagation. For radars, variations in electromagnetic propagation can cause a radar target (e.g., aircraft) to shift in its apparent position, resulting in misrepresentation of the target’s position on the radar display. These variations can be forecast using atmospheric profiles from Numerical Weather Prediction (NWP) and ray tracing software. Evaluation and quantification of differences between forecasted and analyzed electromagnetic propagation conditions using ray tracing techniques and atmospheric conditions derived from the Rapid Refresh (RAP) model will provide guidance regarding Detect And Avoid (DAA) performance requirements.
Stem Teacher Shortage In American Schools: A Case Study Exploring The Recruitment Of Stem Majors Into Teacher Education Programs, Adekunle Lawal
Stem Teacher Shortage In American Schools: A Case Study Exploring The Recruitment Of Stem Majors Into Teacher Education Programs, Adekunle Lawal
Theses and Dissertations
There has been a STEM (science, technology, engineering, and mathematics) teacher shortage in K-12 schools across the United States (Klassen et al., 2021; Luft et al., 2005). To help provide a possible solution to the nationwide STEM teacher shortage, this study investigated the factors that influence STEM majors to change careers from STEM disciplines to teaching. In the current study, six American STEM teachers who have switched careers from the STEM profession to the teaching field were interviewed to find out the factors that led them to change careers; and how schools of education could use these factors in creating …
Performance Assessment Of Wastewater Treatment Processes: Evaporation, Microplastic Settling, Biosolid Air Drying And Gasification, Fangtian Li
Theses and Dissertations
The main contaminants in wastewater can be classified as suspended solid, dissolved inorganic and organic molecules. The dissolved inorganics in wastewater are salinity such as sodium chloride and sodium sulfate. Evaporation is one possible method to separate dissolved salt from high salinity wastewater, but the proper application of energy-saving evaporation depends on many conditions. Microplastic is a part of total suspended solids and can be effectively removed through settling process, and the removal efficiency can be predicted by settling model. Biological treatment eliminates organic matters and biosolids are the inevitable by-products. Air drying is a sustainable approach for reducing water …
Law Enforcement And Traumatic Experiences: A Qualitative Study With Administrators, Tami Jo N. Lieberg
Law Enforcement And Traumatic Experiences: A Qualitative Study With Administrators, Tami Jo N. Lieberg
Theses and Dissertations
The culture and work experiences of law enforcement lead to unique workplace trauma. The cumulative and complex trauma commonly faced by law enforcement officers can activate multiple stress-related illnesses, including Post-Traumatic Stress Disorder (PTSD). These illnesses can have high personal costs to the individuals, lead to loss of departmental productivity and effectiveness, and incur higher expenses for taxpayers due to overtime and high turnover rates and potential lawsuits. Research over several decades has identified risk and resiliency factors for officers. One identified risk and resiliency factor is relationship with management. This research study explores how department leaders can assist officers …
Metamemory And Disconfirming Feedback: An Evaluation Of The Blank Lineup Procedure, James Robert Owens
Metamemory And Disconfirming Feedback: An Evaluation Of The Blank Lineup Procedure, James Robert Owens
Theses and Dissertations
Evaluating an eyewitness for their efficacy is a difficult endeavor. Traditionally, scientists have used post-identification confidence to gauge the accuracy of an eyewitness. Recently, other methods are being explored to evaluate the efficacy of an eyewitness, such as, using blank lineups, measures of metamemory, and pre-identification confidence. The present study evaluated a blank lineup procedure where participants were given disconfirming feedback when they made an incorrect decision on an initial blank lineup. Participants then moved to a target present or target absent final lineup. I sought to evaluate the potential effects of disconfirming feedback using the Eyewitness Metamemory Scale (EMS) …
Additives Impact On Wet Strength And Size Development In Papermaking- Polyamide Epichlorohydrin (Pae), Alkenyl Succinic Anhydride (Asa) And Alkyl Ketene Dimer (Akd) Cases, Yao Parnell Ntifafa
Additives Impact On Wet Strength And Size Development In Papermaking- Polyamide Epichlorohydrin (Pae), Alkenyl Succinic Anhydride (Asa) And Alkyl Ketene Dimer (Akd) Cases, Yao Parnell Ntifafa
Theses and Dissertations
Additives are ingredients used in papermaking to enhance fiber properties, introduce special properties to the paper and improve the efficiency of the paper making process. Wet strength agents, sizing agents, dry strength agents, fillers, retention aids, defoamers, dyes and pigments are common additives used in paper mills. Poor retention of wet strength additive such as PAAE (polyamide epichlorohydrin) and hydrophobicity loss due to ASA (alkenyl succinic anhydride) and AKD (alkyl ketene dimer) size reversion not only increase cost and reduce product quality in the mill but also increase customer complaints and rejections.In this study, a method was developed to quantify …
Using An Airship Design To Extend A Small Uncrewed Aircraft Flight Endurance, Joseph Reilly
Using An Airship Design To Extend A Small Uncrewed Aircraft Flight Endurance, Joseph Reilly
Theses and Dissertations
One limitation of uncrewed aircraft is being unable to fly as long as needed for some operations, such as linear inspection. This research explores the flight endurance of an uncrewed aircraft using airship design. It investigates the benefits of using an airship design to increase the efficiency and extension of the flight of a small, uncrewed aerial system (sUAS). Thus, it is crucial to find ways to augment flight endurance. Two different airframes were built, and flight tested using a lifting gas to provide the lifting force and vectored thrust needed to move. Flight testing captured time in the air …
Victimization And Perpetration Of Sexual Violence In College Men: Factors Influencing Overlap And Prevention, Jasmine Ann Skorheim
Victimization And Perpetration Of Sexual Violence In College Men: Factors Influencing Overlap And Prevention, Jasmine Ann Skorheim
Theses and Dissertations
Previous research has demonstrated a relationship between victimization and perpetration of sexual violence, referred to as victim-offender overlap, and explained this relationship through theories such as the cycle of violence. The current study examined this relationship by grouping participants based on experiences of victimization only, perpetration only, and both victimization and perpetration (both group). Exploratory analysis also considered childhood sexual abuse. Interpersonal and psychological risk factors relevant to perpetration prevention programming were then analyzed between groups. Participants consisted of 486 college men recruited from Kent State University’s psychology subject pool who completed an online survey through Qualtrics. It was found …
An Exploration Of Education Strategies In National Board Of Health And Wellness Coaching Programs, Brenna Joy Swanson
An Exploration Of Education Strategies In National Board Of Health And Wellness Coaching Programs, Brenna Joy Swanson
Theses and Dissertations
Health and wellness coaching (HWC) is a vital and growing profession effective in preventing and managing chronic diseases. The National Board for Health and Wellness Coaching (NBHWC) established comprehensive training guidelines to advance and uphold the field. Each NBHWC-approved program develops a unique curriculum blending education strategies with NBHWC content requirements that prepare individuals to become aspiring health and wellness coaches (HWCs). Pedagogical approaches are well studied; however, education strategies utilized in NBHWC programs and across competency categories are not widely known. Thus, this three-article dissertation provides an understanding of educational strategies used within NBHWC programs. This study aims to …
Advancing Nutrition And Dietetics Students' Preparation For Clinical Practice Through Simulation-Based Learning Experiences, Danielle Marie Villano
Advancing Nutrition And Dietetics Students' Preparation For Clinical Practice Through Simulation-Based Learning Experiences, Danielle Marie Villano
Theses and Dissertations
The use of Simulation-Based Learning (SBL) has increased in Nutrition and Dietetic (N&D) programs, although the research supporting its usability in N&D students is lacking. There are limited quality SBL instruments available that have been validated and tested for reliability in N&D students preparing for clinical practice. This three-article dissertation was to test the reliability of three SBL instruments for N&D students completing the Nutrition Care Process (NCP) during SBL activities. During the first phase of this study, two instruments were developed, and one instrument was modified from another SBL instrument that had been previously validated and used for nursing …
Determination Of The Water To Cement Ratio Of Fresh Concrete Using Nir Hyperspectral Imagery, Eric Edwin Wiken
Determination Of The Water To Cement Ratio Of Fresh Concrete Using Nir Hyperspectral Imagery, Eric Edwin Wiken
Theses and Dissertations
The water to cement ratio (w/c) is the primary mix design parameter that will control the strength of a concrete mix. Although a specific w/c is usually stated in concrete mix specifications, there is currently no practical test available that can quickly measure this critical property from fresh concrete. Near-infrared (NIR) Hyperspectral Imagery (HSI) can identify a material by measuring the response of the material to the incident NIR light reflecting off its surface in a range of wavelengths. This measured response can be used to differentiate between unique materials and identify variations of similar materials. This thesis studies the …
Parent’S Perspectives On The Impact Of Recurrent Otitis Media On Speech And Language Development, Andrea Rose Wilson
Parent’S Perspectives On The Impact Of Recurrent Otitis Media On Speech And Language Development, Andrea Rose Wilson
Theses and Dissertations
The purpose of this study is to investigate the parent’s perspective on whether otitis media delayed their child’s speech and language development. It also focuses on intervention options and the parent’s relationship with their medical providers regarding intervention options for otitis media. Research has shown the importance of early intervention; however, when it comes to recurrent otitis media, many physicians require patients to express symptoms for extended periods before surgical solutions are considered (Granath, 2021). An electronic survey was distributed to parents and caregivers on various parenting Facebook pages. The study was open for one month before the research was …
The Application Of Machine Learning Algorithms On Co2 Eor, Chenyu Wu
The Application Of Machine Learning Algorithms On Co2 Eor, Chenyu Wu
Theses and Dissertations
CO2 Enhanced Oil Recovery (EOR) is increasingly recognized worldwide for its dual benefits of enhancing oil production and addressing environmental concerns related to greenhouse gas emissions. However, traditional methods for assessing the feasibility of CO2 EOR in a specific field, such as pilot tests and simulations, are often time-consuming and labor-intensive. A critical factor in determining the suitability of a field for CO2 EOR is the CO2 Minimum Miscibility Pressure (MMP), as miscible flooding is more feasible when the reservoir pressure exceeds the CO2 MMP. Traditional determination of CO2 MMP relies heavily on extensive experimentation, which, despite its accuracy, incurs …
Career Technical Education: Perceptions Of Medical Career Pathway Students Regarding Preparation For Post Secondary Goals, Charles Russel Dalusong
Career Technical Education: Perceptions Of Medical Career Pathway Students Regarding Preparation For Post Secondary Goals, Charles Russel Dalusong
Theses and Dissertations
Career technical education (CTE) has evolved markedly over the past century to provide a viable avenue for high school students who may seek an alternative and successful academic path that leads to a well-paid future career in the workforce.Recent studies have found that Career and Technology Education can lower dropout rates among high school students (Stone and Lewis, 2012). Students that are enrolled in Career and Technical Education are exposed to a plethora of career opportunities that they may not be cognizant of. . . . (Smith, 2015, p. ii) If high-quality career and technical education (CTE) makes it possible …
Modeling The Architecture And Water Content Of Exoplanet Systems By Pebble Accretion: The Ppols Model, Sean Mccloat
Modeling The Architecture And Water Content Of Exoplanet Systems By Pebble Accretion: The Ppols Model, Sean Mccloat
Theses and Dissertations
A key area linking frontier observational capabilities to theoretical questions of exoplanet system architectures is the transport and evolution of water in planet-forming disks and mechanisms that tune its incorporation into planets. This research develops a pebble accretion model of planet formation (“the PPOLs Model”) that self-consistently handles the drift and accretion of rocky/icy pebbles around stars ranging from late M-dwarfs to early A-stars. The model grows multiple protoplanet cores simultaneously and evolves the snow line position consistently with evolving disk conditions. The combination of growing multiple cores while evolving the snowline allows for a prolonged period of growth and …
Clinical Reasoning Development Following A Simulation-Based Learning Experience In Doctor Of Physical Therapy Education, Benjamin Wolden
Clinical Reasoning Development Following A Simulation-Based Learning Experience In Doctor Of Physical Therapy Education, Benjamin Wolden
Theses and Dissertations
Clinical Reasoning (CR) integrates thinking and decision-making in clinical practice (Huhn et al., 2019). CR is an established area of research in Doctor of Physical Therapy (DPT) education (Musolino & Jensen, 2019; Jensen & Mostrom, 2012) and has been acknowledged as a core competency of physical therapist residency education (APTA Residency Competency Work Group, 2020). Despite the established research, the assessment of CR has emerged as a topic of importance due to the need for standardized assessment of CR in DPT education that can lead to high-quality research and implementation of evidence-informed teaching and learning (Reilly et al. 2021; Furze …
Detecting Flowering Coverage In North Dakota Right-Of-Ways For Supporting Pollinators: A Road Survey Approach, Yeqian Xu
Theses and Dissertations
Establishing and maintaining high-quality grasslands and conservation lands for pollinators can be difficult and costly. As an alternative, roadsides can provide additional forage resources. This study aims to examine the potential of roadside, road ditch, and right-of-way (ROW) land in North Dakota (ND) as alternative habitats for pollinators by quantifying the yellow flowering observed in these sites. The project encompasses a multifaceted approach to assess the viability of roadside ditches in supporting pollinator ecosystems. The research incorporates two essential components: 1) an extensive road survey through the Prairie Pothole Region (PPR) of ND in two consecutive summer seasons and 2) …
Exploring Graph Neural Networks In Reinforcement Learning: A Comparative Study On Architectures For Locomotion Tasks, Gaukhar Nurbek
Exploring Graph Neural Networks In Reinforcement Learning: A Comparative Study On Architectures For Locomotion Tasks, Gaukhar Nurbek
Theses and Dissertations
Deep Reinforcement learning (DRL) has gained importance in optimizing control policies, while Graph Neural Networks (GNNs) offer a robust approach for modeling complex relationships within systems represented as graphs. This thesis investigates the integration of DRL and GNNs to optimize control policies for robotic tasks, with a focus on locomotion. It compares static and dynamic GNN architectures for control policy predictions, revealing their strengths and limitations in adapting to locomotion predictions. The study assesses the impact of model structure complexity on GNNs' predictive capabilities, showcasing how intricate model structure can maximize GNNs' potential in capturing spatial and relational dependencies when …
Examining Time Spent On Social Media And Its Effects On Mental Health In Terms Of Body Image Concerns, Self Esteem And Overall Quality Of Life Among U.S. Adults, Rigel Macarena Pinon
Examining Time Spent On Social Media And Its Effects On Mental Health In Terms Of Body Image Concerns, Self Esteem And Overall Quality Of Life Among U.S. Adults, Rigel Macarena Pinon
Theses and Dissertations
Daily exposure and dependence on computer-based technologies (smartphones) allows for 24/7 constant access to social media (i.e., Facebook, Instagram, Twitter, YouTube, TikTok, and other sites) and has empirically shown to have a positive and negative impact on the mental health of individuals across cultures in our society. Depending on user intent, exposure, and interests, social media platforms can create a sense of community; however, some of the platforms and what users post about themselves has led to cyberbullying, low self-esteem, user addiction, suicide, self-harm behaviors such as eating disorders, sexual dysfunction, and other mental health issues such as depression and …
Navigating School Restructuring In The Post-Covid Era: A Principal’S Perspective In Sustaining Organizational Health While Bridging The Academic Achievement Gap, Alma Alicia Perez-Campos
Navigating School Restructuring In The Post-Covid Era: A Principal’S Perspective In Sustaining Organizational Health While Bridging The Academic Achievement Gap, Alma Alicia Perez-Campos
Theses and Dissertations
In 2019, the COVID-19 pandemic led to nationwide school closures, followed by a mandate for schools to reopen in 2020, posing challenges for ensuring both educational continuity and student safety. This paper presents findings from a mixed-method study involving ten campus principals in District A, South Texas, post-pandemic. Qualitatively, the study explored the principals' perspectives on restructuring their campuses to address achievement gaps while maintaining organizational health. Quantitatively, it examined the relationship between achievement and organizational health scores and any differences in organizational health pre- and post-COVID-19. The study aimed to offer insights for future …
Breaking The Glass Ceiling: Lived Experiences And Career Paths Of Women Administrators In Hispanic-Serving Institutions In The U.S. Southwest Border States, Carlos Adalberto Rios
Breaking The Glass Ceiling: Lived Experiences And Career Paths Of Women Administrators In Hispanic-Serving Institutions In The U.S. Southwest Border States, Carlos Adalberto Rios
Theses and Dissertations
This research study focuses on female executives at two-year and four-year public Hispanic-Serving Institutions in the U.S. Southwest Border States by examining their lived experiences and career paths that helped them become successful senior administrators. Although most college students are female, women in leadership positions in academia are severely underrepresented at institutions nationwide. This research will be a qualitative study using a phenomenological research methodology. It will explore the lived experiences of six female executives in higher education at Hispanic-Serving Institutions in the U.S. Southwest Border States. This study will also investigate the career paths and challenges that these women …
An Exploratory Case Study Of Students’ Blended Learning Experiences During Post Emergency Learning, Heidy M. Garcia Moreno
An Exploratory Case Study Of Students’ Blended Learning Experiences During Post Emergency Learning, Heidy M. Garcia Moreno
Theses and Dissertations
The COVID-19 pandemic has accelerated the integration of technology in classrooms. This has highlighted the need for a deeper understanding of how students experience these learning environments. In response, this case study explored how students experience blended learning in post emergency learning through a digital equity lens. The analysis of interview data revealed six major themes, which yielded three key findings. These findings emphasize the need to embrace a simplified approach to technology integration, refine instructional practices to effectively use technology as a supplement rather than a replacement for traditional tactile elements, while also advancing digital literacy that builds high …
Conditional Quantization For Uniform Distributions On Line Segments And Regular Polygons, Tsianna Danielle Dominguez
Conditional Quantization For Uniform Distributions On Line Segments And Regular Polygons, Tsianna Danielle Dominguez
Theses and Dissertations
Quantization for a Borel probability measure refers to the idea of estimating a given probability by a discrete probability with support containing a finite number of elements. If in the quantization some of the elements in the support are preselected, then the quantization is called a conditional quantization. In this thesis, we have investigated the conditional quantization for the uniform distributions defined on the unit line segments and m-sided regular polygons, where m ≥ 3, inscribed in a unit circle.
A Study Of Quantitative Reasoning Instructors’ Choices And Motivations When Teaching Quantitative Reasoning For The First Time, Trish Ann Harding
A Study Of Quantitative Reasoning Instructors’ Choices And Motivations When Teaching Quantitative Reasoning For The First Time, Trish Ann Harding
Theses and Dissertations
This qualitative study delves into the instructional decision-making processes of post-secondary instructors teaching quantitative reasoning (QR) courses for the first time. The study aims to address the gap in understanding how first-time QR instructors navigate the complexities of curriculum design and pedagogical strategies, and how these experiences contribute to their professional development. The research questions center on identifying the instructional decisions made by these instructors, exploring the factors influencing their decision-making, and understanding the impact of exercising agency has on their professional development. Through in-depth exploration, this study seeks to shed light on the challenges and opportunities faced by first-time …
Developing Hispanic Pre-Service Elementary Bilingual Teachers’ Cultural Competence And Teacher Identity Through Mixed Reality Simulation, Yajaira A. Flores
Developing Hispanic Pre-Service Elementary Bilingual Teachers’ Cultural Competence And Teacher Identity Through Mixed Reality Simulation, Yajaira A. Flores
Theses and Dissertations
Due to the constant migration of diverse populations, multicultural communities are developing across North America. As a result, multi-culturally diverse classrooms are multiplying (Allen et al., 2017). Our pre-service teachers must be multi-culturally prepared to enter diverse classrooms and effectively teach students without implicit bias (Ladson-Billings, 1995; Banks, 2010; Paris, 2017). Pre-service teachers' identity and cultural competence should be prioritized in teacher preparation programs. Using Latino/a Critical Race Theory (LatCrit), Practice-Based Learning, and Teacher Identity as conceptual frameworks, this study will answer how Mixed Reality Simulation (MRS) may be used as a teacher preparation tool (Aguilar & Flores, 2022) to …