Digital Commons Network^™

Evaluation Of Factors That Contribute To Injury To Quizalofop-Resistant Rice From Quizalofop Applied Postemergence, Navdeep Godara

Graduate Theses and Dissertations

Quizalofop-resistant rice technology allows for over-the-top applications of quizalofop, an acetyl-coenzyme A carboxylase-inhibiting herbicide. However, quizalofop caused significant injury to quizalofop-resistant rice in some Arkansas fields during the first year of commercialization. Experiments evaluated the effect of early-season soil moisture and nitrogen availability; pre-exposure to low rates of glyphosate and imazethapyr; planting date; and environmental conditions including, soil moisture content, air temperature, and light intensity on quizalofop-resistant rice tolerance to quizalofop applications. All experiments assessed sequential quizalofop applications made to 2-leaf followed by 5-leaf stage of rice. Sequential quizalofop applications alone and with surface irrigation or nitrogen application at the …

Histomonosis In Turkeys – Factors Influencing Transmission, Pathogenesis, And The Search For Prophylactic Or Therapeutic Compounds, Thainá Landim De Barros

Graduate Theses and Dissertations

The incidence of histomonosis has been increasing in poultry since the ban of prophylactic and therapeutic compounds. Histomonosis is caused by the protozoa Histomonas meleagridis. The objective of this dissertation was to investigate factors impacting the pathogenesis and transmission of histomonosis and to evaluate compounds that could potentially prevent or reduce the severity of histomonosis in turkeys. In the first study, the effect of sodium chlorate and sodium nitrate on reducing histomonads growth was tested in vitro and added to a basal turkey diet. A decrease in the growth of histomonads in vitro was observed, but no in vivo effect …

Effects Of An Injectable Zinc Solution At Weaning As An Alternative Castration Method In Beef Cattle, Reagan Nicole Cauble

Graduate Theses and Dissertations

Two experiments were conducted to investigate a 1 mL intratesticular zinc (100 mg Zn) injection administered into each testicle at weaning (Z) and its effects on growth, health, behavior and testosterone. In the first experiment, beef bulls were assigned randomly to treatment at birth: 1) surgically castrated at birth (S; n = 37) or 2) Z (n = 37). Testicular thickness differed by day (P < 0.01) for Z. Testosterone concentrations were greater in Z by d 77 and remained so through d 280 (P = 0.02) compared to S. Zinc injected calves were heavier at the trail’s conclusion (P ≤ 0.04), had greater ADG overall (P < 0.01), heavier hot carcass weight (P = 0.01), and greater lean muscle area (P = 0.01) compared to S; but a lower marbling score (P < 0.01). Yield Grade, dressed carcass yield and fat thickness were similar (P ≥ 0.14). Zinc injected calves had greater haptoglobin (Hp) concentrations (P < 0.01). Zinc injected calves had greater concentrations of white blood cells on d 1 and 2 and greater concentrations and proportions of neutrophils on d 1, 2 and 3 (P < 0.01). Conversely, S had a greater percentage of lymphocytes on d 1, 2 and 3 and a lower ratio of neutrophils to lymphocytes during that same time (P < 0.01). Zinc injected calves spent more time on their side or sternum on d 1 and more time on their side on d 2 while S spend more time standing during that time (P < 0.01). During d 3, 4, 5, and 6, Z stood more while S laid on their sternum (P < 0.01). In trail 2, beef bulls were allocated randomly to treatment one week post weaning: 1) banded (B; n = 42) or 2) Z (n = 39). Body weights were similar (P ≥ 0.39) but ADG improved for Z compared to B (P = 0.05). Testosterone concentrations were greater in Z compared to B (P ≤ 0.02). Testicular width in Z differed by d (P < 0.01). Zinc castrated calves spent more time on their side compared to B one day post castration (P = 0.03) until d 3 and 4 where B spent more time on their side (P ≤ 0.02). Banded calves stood more the first two days (P ≤ 0.01). On days 3, 4, 5, and 6, Z stood more (P ≤ 0.01) while B were on their sternum (P ≤ 0.03). Banded calves had lower Hp concentrations compared to Z (P ≤ 0.01). Total white blood cell concentrations, proportions and concentrations of neutrophils, and proportion of lymphocytes were greater in Z compared to B on d 1, 2, and 3 (P ≤ 0.01). There was no interaction between treatments over time for IL1β, IL6, and TNFα expression (P ≥ 0.83). The findings in both studies indicate that intratesticular Zn injections at weaning can improve growth performance and some carcass attributes but produce a heightened inflammatory and immune response and cause discomfort. Injecting zinc, as formulated and administered in these trails, does not result in complete castration of beef calves at this age and therefore cannot be considered a true castration alternative.

Is Artificial Intelligence A Double-Edged Sword? Insights From Three Essays On Its Impacts, Ankur Arora

Graduate Theses and Dissertations

"If we do it right, we might be able to evolve a form of work that taps into our uniquely human capabilities and restores our humanity. The ultimate paradox is that this technology may become a powerful catalyst that we need to reclaim our humanity." - John Hagel

Artificial intelligence (AI) is viewed as a disruptive technology that some executives believe will take over a lot of jobs. However, others believe that AI will bolster growth, improve business processes, and create new business opportunities. This dissertation focuses on the tension arising from such contrasting expected impacts of AI. Extant research …

Gender Neutral Parenting: Raising A Generation Outside The Gender Binary, Toni Noelle Martinez

Graduate Theses and Dissertations

In the United States, the social and cultural reality remains organized around the gender binary. The binary legitimizes itself on the widely held belief that gender is determined by biology and, therefore, is “natural.” By exploring and firmly placing gender as a cultural construct, this thesis looks at the possibilities of fracturing the binary. Borrowing from Stephan Hirschauer (1994) and Judith Butler’s (2004), this thesis theorizes what a gender neutral world could look like and examines how Gender Neutral Parents contribute toward a gender revolution. Gender Neutral Parents, a community that is mostly found online, represent a small group that …

Does The Financial Experience Of Sec Regional Directors Impact Sec Investigations Into Reporting Entities?, James Justin Blann

Graduate Theses and Dissertations

The SEC’s Division of Enforcement is frequently criticized for its lack of oversight effectiveness, and certain vocal critics attribute this to a lack of financial experience within the SEC. Using hand-collected data on SEC regional directors, I find that the majority of these SEC officials lack financial experience. I then examine whether the financial experience of SEC regional directors impacts SEC investigations into reporting entities. Consistent with financial experience equipping directors to better process complex financial transactions and reports, I find that directors with financial experience open public company investigations 29 percent more often and conduct these investigations 34 percent …

Trauma Treatment For Youth In Foster Care: A Mixed-Methods Study Of Clinician Perspectives And Treatment Model Use, Allison Blake Smith

Graduate Theses and Dissertations

Youth in foster care experience trauma exposure and subsequent trauma-related disorders at much higher rates than their peers, with prevalence rates comparable with veterans of war. Although youth in foster care appear to receive services at higher rates than their peers, little is known about what outpatient care consists of, particularly for trauma-related disorders. Furthermore, although several evidence-based treatments exist for the treatment of child and adolescent trauma, little is known about how appropriate and effective existing treatment approaches are for youth in foster care. The current study used a mixed methods approach to examine a) the range of evidence-based …

A Physical Layer Security (Pls) Approach Through Address Fed Mapping Crest Factor Reduction Applicable For 5g/6g Signals, Somayeh Mohammady, David Malone Prof.

Articles

The privacy and security of 5G/6G infrastructures are receiving great attention together with power consumption and efficiency. Here, Physical Layer Security (PLS) is considered and a technique named Address Fed Mapping (AFM) is proposed which not only enhances the physical layer security, but also reduces the effect of high Peak to Average Power Ratio (PAPR), which results in efficiency improvement in OFDM based signals used in beyond 5G and 6G. The AFM is designed based on the idea of randomly generated signals, modifying the original signal to reduce PAPR. Instead of a typical randomization algorithm, a unique key is generated …

Trail Stewardship In Coös County Nh, Malin Clyde, Molly Donovan, Charlotte Thompson, Emma Tutein, Haley Andreozzi, Amanda Royce

UNH Cooperative Extension

No abstract provided.

The Covid-19 Pandemic's Influence On Rural Teacher Attrition In Northeast Alabama, Brian Thomas

College of Education

Teacher attrition is a growing problem across the United States and in Alabama. The influence of COVID-19 has complicated teacher attrition by influencing - being and decisions to remain or leave education. Increases in teacher attrition will increase teacher shortages, which impact rural schools dramatically. This study was conducted in rural nor employment decisions during COVID-19. This mixed-methods research used an explanatory, sequential design to explain the findings of teacher attrition data collected from 51 rural schools and 28 non-rural schools with a case study of current and former teachers. Twenty educators participated in interviews to expound on the results …

Safety And Security On Campus: Student Perceptions And Influence On Enrollment, Kaitlyn Puckett

Electronic Theses and Dissertations

Research examining college choice has traditionally focused on factors relating to demographics of the student and the college/university. Less attention has been directed towards how safety and security of the campus and the surrounding community play a role in college choice. In addition, some studies have examined students’ fear of crime, perception of safety and security, and perception of public safety; however, there is still much to be learned. The current study sought to further the research by (1) assessing how campus safety and security impacts enrollment decisions, (2) assessing how students perceive fear of crime and their personal safety, …

A Phenomenological Study On How University Employees Experienced Working From Home During A Pandemic, Amy Hill

Electronic Theses and Dissertations

The purpose of this qualitative study was to explore how employees at a mid-sized public university in the South experienced working from home during the coronavirus pandemic of 2020-2021. Most employees in higher education settings were affected in some way by the coronavirus pandemic that hit the United States in the spring of 2020. Administrative, and clerical and support staff had to determine how to continue to provide the university with services while coordinating working from home. Now that we have experienced working from home, will that experience change the future of how staff work in higher education? For many, …

Fetal Loss In Pregnant Rhesus Macaques Infected With High-Dose African-Lineage Zika Virus, Lauren E. Raasch, Kevin K. Noguchi, Nicole A. Fuhler, Et Al

2020-Current year OA Pubs

Countermeasures against Zika virus (ZIKV), including vaccines, are frequently tested in nonhuman primates (NHP). Macaque models are important for understanding how ZIKV infections impact human pregnancy due to similarities in placental development. The lack of consistent adverse pregnancy outcomes in ZIKV-affected pregnancies poses a challenge in macaque studies where group sizes are often small (4-8 animals). Studies in small animal models suggest that African-lineage Zika viruses can cause more frequent and severe fetal outcomes. No adverse outcomes were observed in macaques exposed to 1x104 PFU (low dose) of African-lineage ZIKV at gestational day (GD) 45. Here, we exposed eight pregnant …

Implications Of Ancestry Estimation: An Analysis Of Identification Rates In Unidentified Persons Cases, Gabrielle Mace

Department of Anthropology: Theses and Student Research

Recently, attention has been drawn to the biases present in the methodologies employed by Forensic Anthropologists, and in the medicolegal system, towards People of Color throughout the identification process. As one of the important contributors to the medicolegal system, it is essential that forensic anthropologists understand the impact of their analyses on the identification rate of marginalized unidentified decedents. Thus, through the utilization of positive identification records from Wayne and Ingham Counties in Michigan, U.S., this research investigated the disparities in identification rates between decedents reported as White and those reported as People of Color (POC). The data indicated that …

Volume 106, Number 2 (2022)

Judicature

No abstract provided.

Difference Imaging From Single Measurements In Diffuse Optical Tomography: A Deep Learning Approach, Shuying Li, Menghao Zhang, Minghao Xue, Quing Zhu

2020-Current year OA Pubs

SIGNIFICANCE: "Difference imaging," which reconstructs target optical properties using measurements with and without target information, is often used in diffuse optical tomography (DOT) in vivo imaging. However, taking additional reference measurements is time consuming, and mismatches between the target medium and the reference medium can cause inaccurate reconstruction.

AIM: We aim to streamline the data acquisition and mitigate the mismatch problems in DOT difference imaging using a deep learning-based approach to generate data from target measurements only.

APPROACH: We train an artificial neural network to output data for difference imaging from target measurements only. The model is trained and validated …

Understanding Charge Effects On Marked Ball Wear Rates – A Corrosion Study, John Bailey Fletcher

Masters Theses

"To measure the wear rates of grinding balls within a ball mill, marked ball wear tests (MBWTs) have been used extensively. Using the wear rates from a MBWT, operators select the most cost-effective media for their grinding application. One factor that a MBWT does not account for is the possible interaction between different media materials which could affect their corrosion rates. Galvanic coupling between dissimilar metals can cause significant changes in their corrosion rates. While galvanic interactions between minerals and grinding media have been studied, the interaction between dissimilar media has not. Corrosion rates and potentials of modern high carbon …

Frontline Polatuzumab Vedotin For Diffuse Large B-Cell Lymphoma: A Survey Of Clinician Impressions, Ajay Major, Edward R Scheffer Cliff, Daniel A Ermann, Urshila Durani, David A Russler-Germain

2020-Current year OA Pubs

In the POLARIX trial, pola-R-CHP demonstrated improved progression-free survival (PFS) compared to R-CHOP in untreated intermediate- to high-risk DLBCL. We surveyed practicing clinicians regarding their interpretation of POLARIX, including impressions of efficacy, safety, and cost. Of 174 respondents, most from academic centers (82%) in the United States (57%), 70% stated they would not replace R-CHOP with pola-R-CHP due to insufficient PFS difference, lack of overall survival benefit, and excessive cost. Respondents not recommending pola-R-CHP expressed concerns about financial implications for both society and patients. We observed considerable heterogeneity in both study interpretation and plans for real-world implementation of pola-R-CHP.

Payment For Ecosystem Services In Peru: Assessing The Socio-Ecological Dimension Of Water Services In The Upper Santa River Basin, Rm Dextre, Ml Eschenhagen, M Camacho Hernández, S Rangecroft, Et Al

School of Geography, Earth and Environmental Sciences

Increasing pressures on ecosystems in the Latin American region, as well as the adoption of multilateral conservation commitments, have led to the implementation of instruments that are economic in nature but oriented towards the recovery, conservation, and functioning of ecosystems such as Payment for Ecosystem Services (PES). In the Peruvian Andes, hydro-climatic factors and land-use changes are affecting the capacity of the ecosystems of the glaciated Cordillera Blanca to provide water services, in terms of both quality and quantity, to the main users of the Santa River basin. Thus, this study analyses how the socio-ecological interactions affect, and are affected …

Superhard Single-Phase (Ti,Cr)B2 Ceramics, Lun Feng, William Fahrenholtz, Gregory E. Hilmas, Laura Silvestroni

Materials Science and Engineering Faculty Research & Creative Works

A nominally pure and dense (Ti0.9Cr0.1)B2 ceramic was produced by spark plasma sintering of powders synthesized by boro/carbothermal reduction of oxides. The synthesized powders were a single phase and had an average particle of 0.4 ± 0.1 μm and an oxygen content of 1.2 wt%. Average Vickers hardness values of the resulting ceramics increased from 25.9 ± 0.8 GPa at a load of 9.81 N, to 46.3 ± 0.8 GPa at a load of 0.49 N. Compared to the nominally pure TiB2 ceramic obtained under the same processing conditions, the (Ti0.9Cr0.1)B2 ceramic had higher values under the same load due …

Teaching During Covid-19: Relational-Cultural Theory In The Online Classroom, Lucy L. Purgason, Dominique Hammonds, Geri Miller, Jill W. Van Horne, Catherine Clark

Journal of Technology in Counselor Education and Supervision

The sudden conversion from face-to-face to online instruction in Spring semester 2020 due to the COVID-19 pandemic was unprecedented. During this time instructors in helping professional training programs were engaged in the duality of being impacted in various degrees while simultaneously training students to assist clients in dealing with the resulting stress and emotional impact. Relational-Cultural Theory (RCT) is a framework that can be used within online counselor education to consider the impact of the larger socio-cultural context on student learning, prioritizing fostering relational connections. In this article, online teaching approaches aligned with the video conferencing tool, Zoom, are described.

Neuroscience-Informed Technology: Implications For Professional Counselors And Counselor Education, Deborah L. Duenyas, Zach Budesa, Chad Luke, Lauren A. Fry

Journal of Technology in Counselor Education and Supervision

The ACA Code of Ethics (2014) state that counselors who use technology must also develop the knowledge and skills necessary to safely engage with clients. To date, no studies were found that identified prevalence or preferences among counselors' use of technology with clients. The purpose of this pilot study was to investigate licensed professional counselors’ self-assessment of competency to use Neuroscience-Informed Technology (NIT). A national sample of licensed professional counselors were surveyed (N = 69). Results indicate that licensed professional counselors feel competent to use NIT as an intervention in their clinical work (94%). Participants reported feeling most competent in …

A Tide Of Technical Trends: Technology Competence Among Licensed Counselors, Brittany G. Suggs, Mary Sanderfer Stull, Spencer R. Baker, Kathie T. Erwin, David M. Savinsky

Journal of Technology in Counselor Education and Supervision

The inclusion of technology in mental health care can revolutionize the accessibility, affordability, and effectiveness of counseling services, while furnishing practical solutions to reduce mental health disparities and meet widening care demands. Steered by the Coalition for Technology in Behavioral Science (CTiBS) telebehavioral health (TBH) competencies, this study employed a descriptive survey design to investigate licensed counselors’ (LCs’) perceived technology competence in mental health care. The following research question steered the study’s exploration: What is the nature of perceived technology competence among LCs? The overarching hypothesis speculated that LCs’ exposure, familiarity, and current utilization of various mental health technologies would …

Logged In, Zoomed Out: Creating & Maintaining Virtual Engagement For Counselor Education Students, Dilian Rolins, Lea Herbert, Galaxina Wright

Journal of Technology in Counselor Education and Supervision

Distance learning has significantly changed the face of counselor education and has greatly enhanced the learning process, becoming more prominent since the national pandemic of COVID-19. However, experiential learning, a primary component for counselor education students, can be particularly challenging for some instructors as they may struggle with developing key learning competencies and experiences via distance formats (Schreiber et al., 2021). Using the Theory of Online Learning Quality as a theoretical framework (Hathaway, 2009), we provide practical implications for how faculty can implement best practices for distance learning while maintaining active engagement for counseling students. In addition, we review online …

Mathematics Education As Dystopia: A Future Beyond, Peter Appelbaum, Charoula Stathopoulou, Constantinos Xenofontos

Journal of Humanistic Mathematics

We argue that scholars and practitioners of mathematics education need to find new directions through recognition of its dystopic characteristics, and embrace these characteristics as both the source of challenges and method of response. This contrasts with the generally utopic approach of most scholarship in the field. We offer critical ethnomathematics education as a model, since it has its own origins in lingering dystopic legacies. A perpetual hopelessness and disempowerment is one implicit curriculum of contemporary mathematics education, where the mathematics one learns might help to describe things, yet hardly assists in transforming the reification of power and agency in …

Higher Meanings: A Speaker Series Connecting Mathematics And Religion, Lawrence M. Lesser, Patricia S. Barrientos, Ben Zeidman

Journal of Humanistic Mathematics

An innovative grant-funded general adult audiences international speaker series on connections between mathematics and religion yielded six 2021 (now archived) presentations. We share reflections and lessons learned, informed by two sets of surveys.

Beyond Ethics: Considerations For Centering Equity-Minded Data Science, Nathan Alexander, Carrie Diaz Eaton, Anelise H. Shrout, Belin Tsinnajinnie, Krystal Tsosie

Journal of Humanistic Mathematics

In this paper, we utilize duoethnography - a research method in which practitioners discursively interrogate the relationships between culture, context, and the mechanisms which shape individual autobiographical experiences - to explore what may be beyond ethics in the context of data science. Although ethical frameworks have the ability to reflect cultural priorities, a singular view of ethics, as we explore, often fails to speak to the multiple and diverse priorities held both within and across institutional spaces. To that end, this paper explores multiple perspectives, epistemologies, and worldviews that can collectively push researchers towards considerations of a data science education …

Towards Pedagogy Supporting Ethics In Modelling, Marie Oldfield

Journal of Humanistic Mathematics

Education for concepts such as ethics and societal responsibility that are critical in building robust and applicable mathematical and statistical models do currently exist in isolation but have not been incorporated into the mainstream curricula at the school or university level. This is partially due to the split between fields (such as mathematics, statistics, and computer science) in an educational setting but also the speed with which education is able to keep up with industry and its requirements. I argue that principles and frameworks of socially responsible modelling should begin at school level and that this would mean that ethics …

Benny, Barbara, And The Ethics Of Edtech, Geillan Aly

Journal of Humanistic Mathematics

Erlwanger (1973) shook the mathematics education world when he introduced Benny, a student who successfully worked through a behavioristic curriculum. Erlwanger showed how far removed Benny’s understanding of mathematics was from expectations. Erlwanger’s legacy is the basis for this comparative case study which explores students’ actions in the modern, in-class computer-centered emporium classroom. Many striking similarities are found between Pearson’s MyMathLabs (MML) and Benny’s Individually Prescribed Instruction curriculum. In this case study we meet Barbara, a student who succeeds in MML but shows little understanding of mathematical concepts and demonstrates that the legacy of Benny is his continued appearance in …

Special Issue -- Ethics In Mathematics: Foreword, Catherine Buell, Victor Piercey

Journal of Humanistic Mathematics

No abstract provided.