Digital Commons Network^™

Understanding Corrosion In Modular Acetabular Tapers: Retrieval Analysis, In Vitro Testing And Cell-Material Interactions, Aarti Shenoy

All Dissertations

Modular metal-on-metal acetabular tapers comprise two overarching design categories: a titanium shell and a metal/ceramic/polymer liner pair, or a dual-mobility articulation design with an added polymeric insert containing a freely rotating femoral head. Both designs often include a metal-on-metal (MoM) or modular dual-mobility (MDM) shell-liner interfaces, which is prone to corrosion and associated local effects. The goals of this dissertation were to document and distinguish between corrosion modes at this modular junction, to design in vitro test methods to characterize mechanical modes, and to examine their interactions with macrophages, which represent a critical part of the immune response. Through retrieval …

Validation Of Physically Heat-Treated Process For Poultry Litter And Analysis Of Microbial Community Of Animal Waste-Based Soil Amendments Using Sequencing Approach, Hongye Wang

All Dissertations

Biological soil amendments of animal origin (BSAAO), such as animal waste or animal waste-based composts, commonly used as organic fertilizer, may contain human pathogens such as Salmonella and Listeria monocytogenes. To reduce harmful microorganisms, animal waste can be treated by composting or other validated scientific methods. But insufficient treatment may introduce pathogens into agricultural fields. As a nutrient-rich fertilizer, poultry litter may also contain human pathogens with Salmonella spp. as a primary focus. Physical heat treatments can kill Salmonella in poultry litter with or without the composting process, but validation studies or guidelines are still needed for the litter processing …

Investigating The Extent Of The Problem: Injury Epidemiology In Cross-Country And Track & Field, Christopher Lee Hopkins

All Dissertations

This dissertation aims to explore the problem of injuries in high school and collegiate cross-country and track and field by systematically reviewing and analyzing data from previous epidemiologic studies, comparing injury rates from a large dataset of collegiate track and field injuries, examining the psychology of injury reporting among adolescent runners, and identifying directions for future research in the field of sports injury epidemiology. Cross-country and track and field are popular modes of physical activity for many adolescents, but as with many sports, they have inherent injury risks that may lead participants to quit or increase their risk of conditions …

Speaking Welcome: A Discursive Analysis Of An Immigrant Mentorship Event In Atlantic Canada, Kristi A. Allain, Rory Crath, Gül Çalışkan

School for Social Work: Faculty Publications

This article offers an analysis of a business mentorship event in Fredericton, NB, which targeted immigrants sponsored through the New Brunswick Provincial Nominee Program (NBPNP)—an economic revitalization program designed to attract foreign business people and skilled workers to settle in the province. Applying Derrida’s concept of hospitality as a technology of whiteness, we examine the stated and implicitly understood expectations for the NBPNP, including the mechanisms at play for regulating newcomer’s behavior and comportment. We locate our analysis in the context of a regionally expressed Canadian multiculturalism, extending the relevance of our findings beyond Fredericton to Atlantic Canada. We ask: …

Volcanic Hazard Assessment For An Eruption Hiatus, Or Post-Eruption Unrest Context: Modeling Continued Dome Collapse Hazards For Soufrière Hills Volcano, Elaine Spiller, Robert L. Wolpert, Sarah E. Ogburn, Eliza S. Calder, James Berger, Abani K. Patra, E. Bruce Pitman

Mathematical and Statistical Science Faculty Research and Publications

Effective volcanic hazard management in regions where populations live in close proximity to persistent volcanic activity involves understanding the dynamic nature of hazards, and associated risk. Emphasis until now has been placed on identification and forecasting of the escalation phase of activity, in order to provide adequate warning of what might be to come. However, understanding eruption hiatus and post-eruption unrest hazards, or how to quantify residual hazard after the end of an eruption, is also important and often key to timely post-eruption recovery. Unfortunately, in many cases when the level of activity lessens, the hazards, although reduced, do not …

Inferior St-Elevation Myocardial Infarction Presenting When Urgent Primary Percutaneous Coronary Intervention Is Unavailable: Should We Adhere To Current Guidelines?, Juan Carlos Kaski, Dan Atar, Mahboob Alam, David Hasdai, Hani Jneid, Barry F Uretsky

Faculty, Staff and Students Publications

The pivotal studies that led to the recommendations for emergent reperfusion therapy for ST-elevation myocardial infarction (STEMI) were conducted for the most part over 25 years ago. At that time, contemporary standard treatments including aspirin, statin, and even anticoagulation were not commonly used. The 2013 American College of Cardiology Foundation (ACCF)/American Heart Association (AHA) guidelines and the 2017 European Society of Cardiology guidelines give a class I recommendation (with the level of evidence A) for primary percutaneous coronary intervention (pPCI) in patients with STEMI and ischemic symptoms of less than 12 h. However, if the patient presents to a hospital …

Inferior St-Elevation Myocardial Infarction Presenting When Urgent Primary Percutaneous Coronary Intervention Is Unavailable: Should We Adhere To Current Guidelines?, Juan Carlos Kaski, Dan Atar, Mahboob Alam, David Hasdai, Hani Jneid, Barry F Uretsky

Faculty, Staff and Students Publications

The pivotal studies that led to the recommendations for emergent reperfusion therapy for ST-elevation myocardial infarction (STEMI) were conducted for the most part over 25 years ago. At that time, contemporary standard treatments including aspirin, statin, and even anticoagulation were not commonly used. The 2013 American College of Cardiology Foundation (ACCF)/American Heart Association (AHA) guidelines and the 2017 European Society of Cardiology guidelines give a class I recommendation (with the level of evidence A) for primary percutaneous coronary intervention (pPCI) in patients with STEMI and ischemic symptoms of less than 12 h. However, if the patient presents to a hospital …

Genetic And Mirna Transcriptomic Analysis Of Autoregulation Of Nodulation Signaling In Medicago Truncatula, Diptee Chauligain

All Dissertations

Legumes can source nitrogen from the air through biological nitrogen fixation inside root nodules formed in a symbiosis with rhizobia. A complex root-to-shoot-to-root signaling pathway called Autoregulation of Nodulation (AON) controls the number of nodules formed depending on the plant’s nitrogen requirements. In Medicago truncatula, the MtSUNN receptor complex in the shoot binds to the root-generated AON signals, peptides called MtCLEs, resulting in downregulation of miR2111 expression in the shoot, with the effect of decreased transport of miR2111 to the roots. Decreased miR2111 levels in the roots then cause an increase in transcript levels of the miR2111 targets MtTML1 …

Monitoring The Spatial Spread Of Covid-19 And Effectiveness Of Control Measures Through Human Movement Data: Proposal For A Predictive Model Using Big Data Analytics, Zhenlong Li, Xiaoming Li, Dwayne Porter Ph.D., Jiajia Zhang Ph.D., Yuqin Jiang, Bankole Olatosi Ph.D., Sharon Weissman

Faculty Publications

Background: Human movement is one of the forces that drive the spatial spread of infectious diseases. To date, reducing and tracking human movement during the COVID-19 pandemic has proven effective in limiting the spread of the virus. Existing methods for monitoring and modeling the spatial spread of infectious diseases rely on various data sources as proxies of human movement, such as airline travel data, mobile phone data, and banknote tracking. However, intrinsic limitations of these data sources prevent us from systematic monitoring and analyses of human movement on different spatial scales (from local to global). Objective: Big data from social …

Decentralized Event-Triggered Control In The Presence Of Adversaries, Paul Griffioen, Raffaele Romagnoli, Bruce H. Krogh, Bruce Sinopoli

Faculty Work Comprehensive List

Decentralized control systems are widely used in a number of situations and applications. In order for these systems to function properly and achieve their desired goals, information must be propagated between agents. However, communication between agents entails connecting to a network, potentially allowing adversaries to infiltrate the system through the network and attack multiple agents. To increase resiliency against these attacks, it is desirable for agents to operate disconnected from the network as much as possible, only communicating with other agents when it is absolutely necessary to achieve their goal or to maintain the safety of the overall system. This …

Practices Of Athletic Trainers Using Weight Charts To Determine Hydration Status And Fluid-Intervention Strategies, Jeremy M. Eith, Clint R. Haggard, Dawn M. Emerson, Susan W. Yeargin Ph.D., Atc

Faculty Publications

Context

Determining an athlete's hydration status allows hydration-related concerns to be identified before significant medical or performance concerns arise. Weight charts are an accurate measure of hydration status changes, yet their clinical use by athletic trainers (ATs) is unknown.

Objective

To investigate ATs' use of weight charts in athletic settings and describe their subsequent clinical decisions.

Design

Cross-sectional survey.

Setting

High schools and National Collegiate Athletic Association Divisions I, II, III and National Association Intercollegiate Athletics colleges.

Patients or Other Participants

A total of 354 ATs (men = 162, women = 175; 17 respondents did not answer the demographic questions) …

Social Media Posts About Racism Leads To Evaluative Backlash For Black Job Applicants, Simon Howard, Kalen Kennedy, Francisco Tejeda

Psychology Faculty Research and Publications

Black Americans post about race and race-related issues on social media more than any other racial group. In this study, we investigated whether Black Americans who post about racism on social networking sites (i.e., Facebook) experience evaluative backlash during the employee selection process. Participants (N = 154) were given a Black job candidate’s cover letter, resume, and a scanned printout of their social media. Depending on what condition they were randomly assigned to, the applicant’s social media contained posts about racism or posts that were race neutral. Results indicated that Black individuals whose posts were about racism were evaluated …

The Vowels Of Urban Qatari Arabic, Mark Daniel Shockley

Theses and Dissertations

Urban Qatari Arabic is a variety of Gulf Arabic [afb] spoken by Qataris with traditionally sedentary tribal backgrounds. This study examines phonetic and phonological aspects of Urban Qatari Arabic vowels using acoustic phonetic data gathered in Qatar. A new phonemic vowel inventory is proposed, including five long vowels and two short vowels. This finding contradicts published studies on Gulf Arabic, which include three or more short vowels; however, it is not unexpected when studies are compared from nearby Arabic varieties. The vowel inventory is also investigated using four linear mixed-effects regression models. In Gulf Arabic, variation in short vowel backness …

The Move Framework: Meanings, Observations, Viewpoints, And Experiences In Processes Of Social Change, Seamus A. Power, Gabriel M. Velez

College of Education Faculty Research and Publications

Social psychologists are often criticized for failing to capture the dynamic nature of psychological processes. We present a novel framework to address this problem. The MOVE framework contends that to comprehend complex, contradictory, and divergent patterns of thought, affect, and behavior within changing, real-world contexts, it is necessary to undertake ecologically valid research that is attentive to the lived experiences and meaning-making processes of culturally embedded individuals over time. A focus on meanings, observations, viewpoints, and experiences is essential for social psychological research that holistically captures how people construct, understand, respond, position, and act over time within changing …

Technology, Trust, And The Flow Of Quality Information: A Grounded Theory Study Of Decision-Making Among K-12 Education Leaders In New York State, Mary Melissa Greene

Education Doctoral

This qualitative study utilizing the grounded theory methodology examined the lived experiences of education leaders in New York State regarding decision-making in light of the extreme variability in the flow and quality of online information. Study findings indicated that the leaders’ strong desire to avoid misinformation, combined with the strong tendency to rely on social influence exerted within local and regional peer groups, ultimately limited the amount of interaction or reliance upon online sources for decision-making. Study participants indicated they relied heavily on trusted advisors and peer groups in the same geographic area for professional advice and as a decision-making …

Millennial Job Satisfaction And Retention In Technical And Business Professions In The United States, Amy Jean Considine

Education Doctoral

Millennials have been found to have higher turnover than previous generations, costing organizations and the U.S. economy over $30 billion annually (Adkins, 2016). Higher turnover for millennials has both short-term and long-term implications for organizations. The purpose of this study was to examine the relationships of job satisfaction, demographic characteristics, and retention for millennials working in technical and business professions in the United States. Using a quantitative, postpositivist paradigmatic design, this study employed the Minnesota Satisfaction Questionnaire (MSQ) short form (University of Minnesota, 2016), the Turnover Intention Scale (TIS-6) (Roodt, 2004), and demographic questions that were adapted into an electronic …

The Black Man’S Experience As A Teacher In K-12: Examining The Insight, Education, And Challenges To Diversifying The Teaching Population, Natasha A. Oates

Education Doctoral

The K-12 teaching profession is dominated by White females, with only 2% of Black male K-12 teachers in the job. The purpose of this qualitative phenomenological study was to examine the insight, education, and challenges Black males face to diversify the K-12 classroom. As the vital instrument of the study, using in-depth, semi-structured interviews, the researcher examined five New York State Black male K-12 educators to discover their perspectives and experiences regarding why Black male educators are underrepresented in the K-12 setting. Five formulated meanings emerged, representing the participants’ experience that included: (a) career motivation, (b) absence of diversity, (c) …

Professional Development For Student Employees Of Color, Monica Duran

Master's Theses

The purpose of this study was to conduct a Participatory Action Research (PAR) project with undergraduate student employees at a large research institution in order to reimagine the career and leadership development programs so that they are responsive to, and supportive of, students who identify as people of color. This would be done using a framework of Yosso’s Community Cultural Wealth theory (2005). The participants of this study were five undergraduate student employees who worked within a single department in a division of Student Affairs. The methodology used was Participatory Action Research, which is a methodology in which the researcher …

Characterization Of Genetic Sources Associated With Restorability And Seed Dimension In Arkansas Restorer Rice Lines, Ozgur Azapoglu

Graduate Theses and Dissertations

Hybrid rice (Oryza sativa L.) breeding offers a significant opportunity to enhance rice production, and the cultivation of a male sterile line is the most important factor in the success of cross-breeding. One of the key elements of hybrid rice production is to develop a restorer line that is assigned as the male parent. The restorer lines provide viable pollen for fertilization of the male sterile plant due to the presence of a restorer gene (Rf) in their genomes. Any superior restorer line applied to hybrid rice production must contain genes/quantitative trait loci (QTL) associated with the desirable agronomic traits …

High-Temperature Optoelectronic Device Characterization And Integration Towards Optical Isolation For High-Density Power Modules, Syam Madhusoodhanan

Graduate Theses and Dissertations

Power modules based on wide bandgap (WBG) materials enhance reliability and considerably reduce cooling requirements that lead to a significant reduction in total system cost and weight. Although these innovative properties lead power modules to higher power density, some concerns still need to be addressed to take full advantage of WBG-based modules. For example, the use of bulky transformers as a galvanic isolation system to float the high voltage gate driver limits further size reduction of the high-temperature power modules. Bulky transformers can be replaced by integrating high-temperature optocouplers to scale down power modules further and achieve disrupting performance in …

The Impact Of Governance On The Reputation Of The Organization, Sarah Ahmed Abdulkreem, Hadeel Kadhm Saeed

Journal of Economics and Administrative Sciences

The current study aims to determine the extent of SOMO's interest in governance and whether this interest is sufficient to be reflected in enhancing its organizational reputation, and the field of research was in the oil marketing company SOMO. (109), (105) questionnaires were distributed, (94) forms and (11) forms were not retrieved, and the valid questionnaires had reached (91). The analytical and descriptive approach was used for the study, and the current research has found a positive impact of government on the reputation of the organization, and this research demonstrated the existence of the proposed relationship and the impact between …

Students Can Still Assimilate Different Cultures Via Virtual Learning, Yuanto Kusnadi, Gary Pan

Research Collection School Of Accountancy

The year 2020 has been unique and exceptional. The Covid-19 pandemic has posed significant challenges to economies and societies across the world. Universities too had to pivot and adapt, with lessons and examinations moved online, for example. One of the challenges faced by universities is how to equip their students with the relevant skillset of gaining exposure to different cultures through internships and exchanges when international borders are largely closed. To overcome the constraint posed by the Covid-19 pandemic, a recent initiative by the Singapore Management University (SMU), called SMU-X Overseas (virtual), has allowed students to work on real-world projects …

Text As Data: An Overview, Kenneth Benoit

Research Collection School of Social Sciences

When it comes to textual data, the fields of political science and international relations face a genuine embarrassment of riches. Never before has so much text been so readily available on such a wide variety of topics that concern our discipline. Legislative debates, party manifestos, committee transcripts, candidate and other political speeches, lobbying documents, court opinions, laws – not only are all recorded and published today, but in many cases this is in a readily available form that is easily converted into structured data for systematic analysis.

An Experiential Analysis Of Job Site Safety: Delineating Between Positive Safety Culture And Excessive Safety, Steven Tighe

All-Inclusive List of Electronic Theses and Dissertations

In general industry and in construction many safety requirements are mandated on job sites and in facilities. Many requirements move past simple compliance and enter the realm of cultural safety. This high level of cultural safety is what is typically the level most safety professionals strive for in any company. The balance is tipped to excessive when we move past the cultural safety into redundant or multi layers of requirements that affect production rates and have no actual value to safety but have the appearance of safety. This research looked into a large construction project that had multiple layers of …

Stratified Security Communities: Transatlantic Distrust And Identity Divergence, Afra Maike Herr

Graduate Program in International Studies Theses & Dissertations

With mounting pressure by the United States directly and through their strategic shift and slow abdication of leadership towards Asia and away from the transatlantic community, European states have growing incentive to cooperate more strongly and integrate their defense and security efforts. The absence of such a trend of integration points to internal barriers to growing cooperation countering the external dynamic. Utilizing the theory of security communities, this thesis explores German, French, and British understanding of leadership, defense, and their respective public opinions. Focusing on the security identities of all three nations and their visions for the community as well …

Traces Of Social Psychology In Research Studies Of Selected Higher Education Institutions In And About Southern Luzon, Philippines, Louise S. Villanueva

Journal Article

Social psychology builds on the strength of two disciplines. As it is considered the intersection of sociology and psychology, it analyzes how individuals view and influence each other’s behavior. To find out if social psychology permeates the different topics that students undertake, the researchers conducted a systematic review of research studies in 12 higher education institutions in Southern Luzon. The systematic review permitted content analysis of abstracts to identify and compare key results that these studies obtained. Results showed that students dealt with these topics in social psychology: (1) self in the social context; (2) social cognition and perception; (3) …

The George-Anne Daily, Georgia Southern University

George-Anne Media Group: Newsletters & Magazines

No abstract provided.

Attitudes Of Virginia Dental Hygienists Toward Dental Therapists, Helene Mesina Burns

Dental Hygiene Theses & Dissertations

Problem: The purpose of this study was to determine the opinions and attitudes of Virginia dental hygienists toward dental therapists (DTs) and to determine if current education level and years of practice affected opinions regarding education requirements for DTs. Methods: After IRB approval, a 22-item questionnaire was distributed online to a convenience sample of 910 Virginia dental hygienists. Questions assessed attitudes of participants toward the DT using a seven-point Likert-type scale ranging from 1 (strongly disagree) to 7 (strongly agree). Additionally, participants were asked to respond to demographic questions and open-ended questions about potential advantages and/or disadvantages to DTs. Independent …

Illuminating False Light: Assessing The Case For The False Light Tort In Canada, Fraser Duncan

Dalhousie Law Journal

The false light tort has been the most contentious of the four privacy torts recognized in many US states, receiving criticism for its uncertain connection to privacy interests, its overlap with defamation and its chilling effect on free speech. While the tort has not previously received much judicial or scholarly attention in Canada, the recent decision of the Ontario Superior Court of Justice in Yenovkian v Gulian recognized false light as a cause of action in the province. This article cautions other Canadian common law courts against following suit through an analysis of the nature, history, and criticisms of the …

Responsible Scholarship In A Crisis: A Plea For Fairness In Academic Discourse On Carbon Pricing References, Stepan Wood, Meinhard Doelle, Dayna N. Scott

Dalhousie Law Journal

This article offers a critical review of a paper Professor Dwight Newman recently published on the constitutionality of the federal government’s national carbon pricing legislation and the Saskatchewan and Ontario court decisions upholding the law. Rather than engage with the substance of Professor Newman’s article, the authors consider whether it respects the norms of rigorous and fair inquiry that enable constructive scholarly debate. The authors conclude that it does not, and that the consequences for the Supreme Court’s resolution of the carbon pricing reference cases could be significant.

Le présent article propose une analyse critique d’un texte publié récemment par …