bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Yoga on Mental Well-Being
Authors:   , Gerber Monica
Published: February 2025

The present study sought to more rigourously explore outcomes of psychological well-being immediately following a psychotherapeutic yoga class. Specifically, the study hypothesized improvements in state anxiety and subjective well-being as well as an observable relationship between state and trait mindfulness following a yoga intervention, all while controlling for differences between yoga instructors, prior yoga experience, and participant endorsements of psychological symptoms. Previous yoga experience was not found to be a significant factor in any of the tested hypotheses. Findings revealed that psychotherapeutic yoga decreased anxiety and increased subjective well-being, even after controlling for therapist variability, prior yoga experience, and client diagnosis. Results also indicate differential impacts on decreased anxiety and increased subjective well-being by class instructor. This is the first study to examine outcomes of an ongoing yoga based-practices in the naturalistic setting of an outpatient counseling center while rigorously controlling for confounding factors (e.g. therapist variability). Methodological and statistical limitations are discussed in depth, and future directions to improve on this study and clarify the present findings are emphasized.
Laser Surface Modification of AZ31B Mg Alloy Bio-Implant Material
Authors:   , Wu Tso-chang
Published: February 2025

Magnesium and its alloys are considered as the potential biomaterials due to their biocompatibility and biodegradable characteristics but suffer from poor corrosion performance. Various surface modification techniques are employed to improve their corrosion resistance. In present case, laser surface melting was carried out on AZ31B Mg alloy with various laser energy densities using a continuous wave ytterbium laser. Effect of laser treatment on phase and microstructure evolution was evaluated by X ray diffraction and scanning electron microscopy. Multi-physics thermal model predicted time temperature evolution along the depth of the laser treatment zone. Additionally, electrochemical method and bio-immersion test were employed to evaluate the corrosion behavior in simulated body fluid medium. Microstructure revealed grain refinement and even distribution of Mg17Al12 phase along the grain boundary for laser treated samples leading to substantial enhancement in the corrosion resistance of the laser treated samples compared to the untreated alloy. The laser processed samples also possessed a superior wettability in SBF solution than the untreated sample. This was further reflected in enhanced bio-integration behavior of laser processed samples. By changing the parameters of laser processing such as power, scanning speed, and fill spacing, a controllable corrosion resistance and bioactivity/biocompatibility of the implant material was achieved.
A Grounded Theory of Music Teacher Large Scale Conference Professional Development Implementation: Processes of Convergence
Authors:   , West Justin J.
Published: February 2025

The purpose of this study was to understand the process of music teacher large-scale conference professional development (PD) implementation (i.e., the integration of conference-derived learnings into classroom practice). The context of this investigation was two national music conferences, the Midwest Clinic and the National Association for Music Education National In-Service Conference, and one state music conference, the Texas Music Educators Association Clinic/Convention. Using purposive maximum variation sampling, active music teachers (n = 32) who each attended one of these conferences were recruited. Data collection occurred in a series of three participant interview phases, staggered according to which conference participants attended and when each conference was held. Twenty-eight participants were interviewed twice, and four participants were interviewed once, yielding a total of 60 interview transcripts, which were then openly, axially, and selectively coded in accordance to grounded theory method. The principal finding, the cycle of music teacher large scale conference professional development implementation (C-MTPDI), revealed an implementation process in three phases. First, the consideration phase (before/during conference) entailed needs assessment, direct engagement, change articulation, and, for some participants, deterrent factors/contingencies. Second, the realization phase (immediate post-conference) included translation, integration, and recalibration. Third, and finally, the decision phase (3-5 weeks post-conference) included evaluation. The core category, or main theme of the research, was seeking convergence: relevance, practicability, and impact. Contextual conditions included PD worldview and PD policy environment. Avenues for future scholarship include clarifying differences in design and effectiveness among and within music-specific PD models, more fully understanding the status of large-scale conference PD in music education and its effect on practice, and theorizing PD implementation in non-conference contexts. Practical implications include developing new theory-aligned PD policies, putting into place more robust infrastructures of implementation support for large-scale conference attendees, addressing PD funding inequities between teachers in music and non-music disciplines, and helping practitioners to newly conceive "one-off" PD events (e.g., large-scale conferences) as sustainable investments in long-range professional growth.
An Investigation of the Value of Bank Capital in the Context of Mergers and Acquisitions in the Banking Industry
Authors:   , Liu Shiang
Published: February 2025

I analyzed a sample of 228 U.S. bank acquisitions announced from January 1996 to December 2015. This dissertation explores whether acquiring banks pay more for targets with a higher capital ratio using a better measure of goodwill than previous studies. Specifically, this study uses manually collected goodwill to evaluate the value of bank capital, a measure that I argue is superior to those used in prior studies. I collect information about goodwill for 203 merger and acquisition (M&A) deals. I find a positive relation between the target's capital ratio and the goodwill paid for targets, which is consistent with previous cross sectional analysis on the relation between bank equity capital and value. This positive relation exists in the deals with a bank target, but not when the target is a savings institution. Furthermore, I find that the positive association between the target's capital ratio and goodwill paid by the acquirer only exists in the sample of acquisitions of banks announced before the 2007 financial crisis. This dissertation also evaluates the value of bank capital by analyzing the changes in shareholders' wealth around the announcement of M&As. My empirical analysis shows that banking mergers create value for the shareholder of targets. However, I find a significantly negative association between target's capital ratio and cumulative abnormal return to acquirers in M&As. Furthermore, I also report that this negative association only holds in M&As announced during and after the financial crisis. This dissertation also investigates the impact of bank capital on the cost of equity, another channel through which capital can influence banks' value. This dissertation tests the potential impact of bank capital on the cost of equity in the context of bank M&As. M&As are a good laboratory to study the relation between bank capital structure and the cost of equity capital because M&A transactions alter capital structure, and thus could change the cost of equity capital of the acquiring bank. My empirical results show a positive association between the target's capital ratio and the change in acquirer's annual cost of equity capital after the completion of the deals. Additionally, I also analyze a sample of non-US bank M&As and find a negative association between the target's capital ratio and the cumulative abnormal return of banks acquired in M&As.
The Role of Thyroid Hormone on the Development of Endothermy in White Leghorn Chickens (Gallus gallus)
Authors:   , Rippamonti Jessica D.
Published: February 2025

As chickens hatch, there is a rapid change in their physiology and metabolism associated with attaining endothermy. It is thought that thyroid hormones (TH) play a major role in regulating developmental changes at hatching. In birds, TH regulates skeletal muscle growth, which has a direct impact on the chick's ability to thermoregulate via shivering thermogenesis. To better understand the role of TH in the timing of hatching, development of thermogenic capacity, and metabolic rate, we manipulated plasma TH levels in chicken embryos beginning at 85% development (day 17 of a 21 day incubation) with either thyroperoxidase inhibitor methimazole (MMI) or supplemental triiodothyronine (T3). After TH manipulation, we characterized O2 consumption and body temperature in the thermal neutral zone and during gradual cooling. Externally pipped embryos and 1 day post hatch (dph) chicks were cooled from 35 to 15°C. Manipulation of TH altered the timing of hatching, accelerating hatching under hyperthyroid conditions and decelerating hatching with hypothyroid conditions. Cohen's d revealed a large effect size on body temperature (Tb) of EP embryos of hypothyroid animals when compared to euthyroid animals in environmental temperatures of 32°C to 15°C, which was not seen in 1dph animals. Hyperthyroid EP animals were able to maintain metabolic rate over a wider range of ambient temperatures compared to control and hypothyroid animals, but these differences disappeared in 1dph animals. Here, we find that elevating TH levels prior to hatching accelerated hatching and the animal's thermogeneic ability to respond to cooling, but these differences disappear with age.
The Importance of Construct Definition and Specification in Operations Management Structured Model Research: The Case for Quality and Sustainability Constructs in a Decision-Making Model
Authors:   , Xu Lu
Published: February 2025

In the operations management research, the inconsistent use of the same term for different concepts and the use of the similar concepts for different constructs potentially causes theoretical and statistical problems. This research addresses the importance of construct definitions and specification methodologically within the context of quality and sustainability management. It involves three essays using multiple quantitative methods such as partial least squares structural equation modeling and multiple regression in different consumer decision-making models in the automobile industry. In the first two essays, a comprehensive literature review results in definition and contextualization of the quality and sustainability constructs as applied to operations management and marketing research. The relationships of these constructs with consumer behavior are empirically tested. Building upon the first two essays, the third essay addresses the methodological issues on formative and reflective measurements by summarizing a procedure of validating formative measurements. The quality construct was used to illustrate the methodology. This research contributes to the literature, theory, and practices in the area of quality and sustainability management.
Musical Time and Memory: A Bergsonian Interpretation of Sergei Rachmaninoff's Prelude Op. 32 No. 10 in B Minor
Authors:   , Buxton Robert S.
Published: February 2025

This study uses Bergson's concepts of duration and spontaneous (now termed episodic) memory to reveal how musical material in Rachmaninoff's Prelude Op. 32 No. 10 in B Minor (1910) turns back on itself in recurring remembrances of its own past, bringing the listener out of ordinary time; a process that mirrors themes both from Rachmaninoff's life, and Arnold Böcklin's Die Heimkehr, the painting that inspired this piece. Time perception slows or even suspends when one reflects on the past, either a personal past or the historical past. Musical material in the Prelude undergoes analogous time warps. In conversation with Bergson's ideas, this study illustrates the unique temporal qualities in the musical language of the Prelude, for which standard forms of analysis fail to completely capture the essence. The overall aim is to demonstrate Rachmaninoff's idiosyncratic approach to piano writing, which many have discredited as anachronistic. This study suggests a new methodology – Bergsonian musical analysis – with which to understand the concealed innovations in Rachmaninoff's piano idiom. This study of Rachmaninoff's B Minor Prelude builds on publications concerning other Bergsonian interpretations of music in pursuing a thorough investigation of one work and its relationship with broader issues in philosophy and visual art. The result is a theoretical engagement with the Prelude that establishes a new methodology to deal with Rachmaninoff's piano idiom in general. A Bergsonian analytical technique reveals the real artistry behind Rachmaninoff's compositions – not just remnants of some past romantic idiom, but an idiosyncratic musical grappling with the nature of time and memory.
An Expectancy-Value Model of Elective Music Participation
Authors:   , Frey-Clark Marta
Published: February 2025

The purpose of this study was to specify and test a model detailing (a) gender, (b) previous elective music experience, (c) school, (d) music self-concept, and (e) music values as predictors of music enrollment and the initial juncture of school-sponsored elective music participation. In the event that a model with adequate fit was retained, a further purpose of this study was to calculate the direct, indirect, and total effects of each predictor, thereby determining each predictor's relative contribution towards explaining variance in elective music enrollment. Participants included fifth-grade students (N = 148) from two elementary schools. Data were gathered via administration of the Motivators of Elective Music Participation Questionnaire, and by accessing middle school elective enrollment records. The proposed expectancy-value model of elective music participation demonstrated excellent fit and was retained for interpretation. Overall, the model accounted for 34.4% of the variance in elective music participation. The greatest total predictor of elective music participation was previous elective music experience, followed closely by music values. Music self-concept, gender, and school played negligible roles in predicting whether students opted in or out of sixth-grade music electives.
The Art of Marimba Articulation: A Guide for Composers, Conductors, and Performers on the Expressive Capabilities of the Marimba
Authors:   , Davis Adam Benjamin
Published: February 2025

Articulation is an element of musical performance that affects the attack, sustain, and the decay of each sound. Musical articulation facilitates the degree of clarity between successive notes and it is one of the most important elements of musical expression. Many believe that the expressive capabilities of percussion instruments, when it comes to musical articulation, are limited. Because the characteristic attack for most percussion instruments is sharp and clear, followed by a quick decay, the common misconception is that percussionists have little or no control over articulation. While the ability of percussionists to affect the sustain and decay of a sound is by all accounts limited, the ability of percussionists to change the attack of a sound with different implements is virtually limitless. In addition, where percussion articulation is limited, there are many techniques that allow performers to match articulation with other instruments. Still, percussion articulation is often a topic of little concern to many musicians. The problem is not that this issue has been completely ignored, but rather that a vast number of contradictory and conflicting viewpoints still permeate pedagogical methods and literature. This is most certainly the case with the marimba, where a review of method books reveals a multitude of confusing statements about marimba articulation. It is clear that there is still widespread confusion about marimba articulation from composers, conductors, and most importantly percussionists themselves. This study attempts to advance percussion pedagogy in this area through a better understanding of the terminology of musical articulation, the acoustical principles of the marimba, and the techniques that affect sound production on this instrument. After a review of these three areas, this study examines 166 recordings, which look at the actual effect of specific techniques carried out on the marimba. Finally, the project offers a set of recommendations for composers, conductors, and percussionists on all aspects of marimba articulation, in the goal of increasing marimbists' potential for greater musical expression.
Simulation of Dengue Outbreak in Thailand
Authors:   , Meesumrarn Thiraphat
Published: February 2025

The dengue virus has become widespread worldwide in recent decades. It has no specific treatment and affects more than 40% of the entire population in the world. In Thailand, dengue has been a health concern for more than half a century. The highest number of cases in one year was 174,285 in 1987, leading to 1,007 deaths. In the present day, dengue is distributed throughout the entire country. Therefore, dengue has become a major challenge for public health in terms of both prevention and control of outbreaks. Different methodologies and ways of dealing with dengue outbreaks have been put forward by researchers. Computational models and simulations play an important role, as they have the ability to help researchers and officers in public health gain a greater understanding of the virus's epidemic activities. In this context, this dissertation presents a new framework, Modified Agent-Based Modeling (mABM), a hybrid platform between a mathematical model and a computational model, to simulate a dengue outbreak in human and mosquito populations. This framework improves on the realism of former models by utilizing the reported data from several Thai government organizations, such as the Thai Ministry of Public Health (MoPH), the National Statistical Office, and others. Additionally, its implementation takes into account the geography of Thailand, as well as synthetic mosquito and synthetic human populations. mABM can be used to represent human behavior in a large population across variant distances by specifying demographic factors and assigning mobility patterns for weekdays, weekends, and holidays for the synthetic human population. The mosquito dynamic population model (MDP), which is a component of the mABM framework, is used for representing the synthetic mosquito population dynamic and their ecology by integrating the regional model to capture the effect of dengue outbreak. The two synthetic populations can be linked to each other for the purpose of presenting their interactions, and the Local Stochastic Contact Model for Dengue (LSCM-DEN) is utilized. For validation, the number of cases from the experiment is compared to reported cases from the Thailand Vector Borne Disease Bureau for the selected years. This framework facilitates model configuration for sensitivity analysis by changing parameters, such as travel routes and seasonal temperatures. The effects of these parameters were studied and analyzed for an improved understanding of dengue outbreak dynamics.
A Study of the Impact and Influence of the Recordings and Pedagogy of David Baldwin
Authors:   , Adams Richard
Published: February 2025

David Baldwin has been the trumpet professor at the University of Minnesota since 1974. His most celebrated accomplishment is his recording of the Charlier 36 Etudes de Transcendantes and the Marcel Bitsch Vingt Etudes. In addition to this recording Baldwin has made recordings of etude books by Small, St. Jacome, Arban, Caffarelli, Smith, and the 32 Etudes de Perfectionnement also by Charlier. The quality of performance on all of these makes them excellent reference recordings. The back cover of the Etudes 32 de Perfectionnement reveals that the two-CD album, with a total run time of 115:35, was recorded over a span of four days. Endurance is a topic that all brass players confront. Baldwin wrote an etude book titled Lips of Steel that also contains two previously published articles on the topic of endurance. His ideas on endurance reveal a unique approach. This study analyzes the pedagogical concepts in those articles and in Lips of Steel. In addition to his recording projects, Baldwin has had many successful students. Thomas Rolfs and Lynn Erickson are both members of full-time professional orchestras. Larry Griffin, Scott Hagarty, and many others built their careers as professors of trumpet. An investigation of Baldwin's influence on his students further reveals how he approaches teaching and how his pedagogy has influenced his students who are now successful college professors.
A Grounded Theory of Information Quality in Web Archives
Authors:   , Reyes Brenda
Published: February 2025

Web archiving is the practice of preserving websites as a historical record. It is a technologically-challenging endeavor that has as its goal the creation of a high-quality archived website that looks and behaves exactly like the original website. Despite the importance of the notion of quality, comprehensive definitions of Information Quality (IQ) in a web archive have yet to be developed. Currently, the field has no single, comprehensive theory that describes what is a high-quality or low-quality archived website. Furthermore, most of the research that has been conducted on web archives has been system-centered and not user-centered, leading to a dearth of information on how humans perceive web archives. This dissertation seeks to remedy this problem by presenting a user-centered grounded theory of IQ for web archives. It answers two research questions: 1) What is the definition of information quality (IQ) for web archives? and 2) How can IQ in a web archive be measured? The theory presented is grounded on data obtained from users of the Internet Archive's Archive-It system, the largest web-archiving subscription service in the United States. Also presented are mathematical definitions for each dimension of IQ, which can then be applied to measure the quality of a web archive.
Studies in Trypsin as an Alarm Substance in Zebrafish
Authors:   , Alsrhani Abdullah Falleh
Published: February 2025

Previous studies have shown that fish release alarming substances into the water to alert their kin to escape from danger. In our laboratory, we found that zebrafish produce trypsin and release it from their gills into the environment when they are under stress. By placing the zebrafish larvae in the middle of a small tank and then placing trypsin at one end of the tank, we observed that the larvae moved away from the trypsin zone and almost to the opposite end of the tank. This escape response was significant and did not occur in response to the control substances, bovine serum albumin (BSA), Russell's viper venom (RVV), and collagen. Also, previously, we had shown that the trypsin could act via a protease-activated receptor-2 (PAR2) on the surface of the cells. Therefore, we hypothesized that trypsin would induce a change in neuronal activity in the brain via PAR2-mediated signaling in cells on the surface of the fish body. To investigate whether the trypsin-responsive cells were surface cells, we generated a primary cell culture of zebrafish keratinocytes, confirmed these cells' identity by specific marker expression, and then incubated these cells with the calcium indicator Fluo-4 and exposed them to trypsin. By using calcium flux assay in a flow-cytometer, we found that trypsin-treated keratinocytes showed an increase in intracellular calcium release. To test whether PAR2 mediates the escape response to trypsin, we treated larvae with a PAR2 antagonist and showed that the trypsin-initiated escape response was abrogated. Furthermore, par2a mutants with knockdown of par2a by the piggyback knockdown method failed to respond to trypsin. Trypsin treatment of adult fish led to an approximately 2-fold increase in brain c-fos mRNA levels 45 mins after trypsin treatment, suggesting that trypsin signals may have reached the brain, probably via a spinothalamic pathway. Taken together, our results reveal a novel trypsin-initiated escape response in fish. These studies should enhance our understanding of fish communication in general and alarm behavior in particular. Furthermore, since pain receptors in other animals are also PAR2, our finding may be useful in exploring pathways of pain reception.
Transitioning from Sport: Retirement and Former Female Collegiate Athletes' Satisfaction with Life, Depressive Symptomatology, and Body Satisfaction
Authors:   , Wartalowicz Karolina Maria
Published: February 2025

Retirement from elite sport can be highly distressing for athletes, and many athletes report elevated depression and anxiety or body dissatisfaction when going through this transition. Factors that may be important in determining a higher level of adjustment in retirement include feeling in control of when and how retirement occurs, planning occupationally for after sport, and having achieved sport goals. Thus, we examined how such factors related to former female collegiate athletes (N = 218) satisfaction with life, depression, and body satisfaction. Two to six years post retirement, athletes completed an online questionnaire that measured their satisfaction with life, depressive symptomatology, and body satisfaction; retirement factors were measured by the 12-items from the BALANCE scale. Through regression analyses, we examined the extent to which each of the 12 retirement factors is related to life satisfaction, depression, and body satisfaction; time since retirement was unrelated to these outcomes. Future research might address the transition immediately following retirement utilizing these factors that appear most influential.
"World Life"
Authors:   , Ingabire Cyuzuzo
Published: February 2025

During this time of interest and uncertainty in immigration, a foreigner seeking an education, home, and career wonders how welcoming America really is. This documentary film focuses on how the organization known as World Life is involved in helping international students in terms of language, accommodation, and religion. It follows an organization that is willing to open up and welcome them into the community.
Conformal and Stochastic Non-Autonomous Dynamical Systems
Authors:   , Atnip Jason
Published: February 2025

In this dissertation we focus on the application of thermodynamic formalism to non-autonomous and random dynamical systems. Specifically we use the thermodynamic formalism to investigate the dimension of various fractal constructions via the, now standard, technique of Bowen which he developed in his 1979 paper on quasi-Fuchsian groups. Bowen showed, roughly speaking, that the dimension of a fractal is equal to the zero of the relevant topological pressure function. We generalize the results of Rempe-Gillen and Urbanski on non-autonomous iterated function systems to the setting of non-autonomous graph directed Markov systems and then show that the Hausdorff dimension of the fractal limit set is equal to the zero of the associated pressure function provided the size of the alphabets at each time step do not grow too quickly. In trying to remove these growth restrictions, we present several other systems for which Bowen's formula holds, most notably ascending systems. We then use these various constructions to investigate the Hausdorff dimension of various subsets of the Julia set for different large classes of transcendental meromorphic functions of finite order which have been perturbed non-autonomously. In particular we find lower and upper bounds for the dimension of the subset of the Julia set whose points escape to infinity, and in many cases we find the exact dimension. While the upper bound was known previously in the autonomous case, the lower bound was not known in this setting, and all of these results are new in the non-autonomous setting. We also use transfer operator techniques to prove an almost sure invariance principle for random dynamical systems for which the thermodynamical formalism has been well established. In particular, we see that if a system exhibits a fiberwise spectral gap property and the base dynamical system is sufficiently well behaved, i.e. it exhibits an exponential decay of correlations, then the almost sure invariance principle holds. We then apply these results to uniformly expanding random systems like those studied by Mayer, Skorulski, and Urbanski and Denker and Gordin.
Raymond Crisara, A Trumpet Life: His Pedagogy, Philosophy and Legacy
Authors:   , McLaughlin Paul E.
Published: February 2025

In this project I identify the pedagogical techniques, philosophy and legacy of Raymond Crisara. I examine how his pedagogical philosophy led to Crisara's personal success as a teacher and to his students' success in their performing and teaching careers. In much the same way that Ernest Williams's legacy has been passed on to his students, Crisara's legacy is now being handed down. I have examined Crisara's pedagogical concepts and philosophy through the eyes of four former students: Dr. Todd Hastings (Professor, Pittsburg State University), Billy Hunter (Principal Trumpet, Metropolitan Opera Orchestra), Dr. Gary Mortenson (Dean of the School of Music, Baylor University) and Keith Winking (Professor, Texas State University) as well as from transcripts of interviews Crisara gave. Crisara extended and modified William's pedagogy through the use of a multitude of étude methods. This modification and Crisara's experience as a leading New York freelance musician greatly influenced the teaching and success of the four subjects I interviewed. While these teachers have adopted Crisara's pedagogy and philosophy largely unchanged, I found that they modified his pedagogy slightly through the use of added teaching materials never used in Crisara's career or teaching studio.
Pathways to Prolonged Grief and Posttraumatic Growth: Examining the Roles of Attachment, Identity Distress, and Shattered Assumptions
Authors:   , Captari Laura E.
Published: February 2025

The sudden or violent death of a loved one (e.g., suicide, homicide, accident, etc.) poses unique challenges for the bereaved. Research has found such losses to be associated with higher levels of chronic psychological distress, now termed Persistent Complex Bereavement Disorder in the DSM-5 and Prolonged Grief Disorder in the forthcoming ICD-11. The present study, developed through the lens of Multidimensional Grief Theory (MGT; Kaplow et al., 2013), explored underlying mechanisms and risk and protective factors for both prolonged grief and posttraumatic growth. With a mixed college and community sample of 374 traumatically bereaved adults, results of a path analysis suggest that insecure attachment strategies play a significant role in prolonged grief symptoms through the mediators of identity distress and shattered assumptions. Faced with the traumatic loss of a loved one, the ability and desire to effectively access relationships facilitating intentional processing that promotes cognitive reorganization is predicated on the bereaved's internal working model of attachment. Specifically, attachment anxiety in relation to close others and God, and attachment avoidance in relation to close others, were indirectly associated with prolonged grief. However, attachment avoidance in relation to God was negatively associated with both prolonged grief and posttraumatic growth, and there was no evidence for mediation. One explanation for this could be that individuals endorsing divine attachment avoidance are less likely to make negative religious attributions about the death, which have been associated with chronic psychological distress, but are also less likely to be able to utilize the sacred as a context for growth. By considering traumatically bereaved individuals' internal working model of attachment, level of identity distress, and potentially shattered assumptions, our model accounted for each of MGT's three domains of distress thought to impact post-lost adjustment. That these domains were both inter-related and associated with differential outcomes speaks to the complex nuances of each grief journey and the importance of attending to more than global levels of distress. These results inform the assessment and treatment of individuals bereaved through sudden or violent means.
Cosmophonia: Musical Expressions of Astronomy and Cosmology
Authors:   , DiFalco Elaine
Published: February 2025

Astronomy and music are both fundamental to cultural identity in the form of various musical styles and calendrical systems. However, since both are governed by incontrovertible laws of physics and therefore precede cultural interpretation, they are potentially useful for insight into the common ground of a shared humanity. This paper discusses three compositions inspired by different aspects of astronomy: Solstitium e Equinoctium, a site-specific composition for four voices and metal pipes involving an inclusive communal musical ritual and sonic meditation; Helios, a short symphonic work inspired by helioseismology; and Perspectives, a piece for soprano and percussion based on a logarithmic map of the universe.
Modeling Information Seeking Under Perceived Risk
Authors:   , Shakeri Shadi
Published: February 2025

Information seeking and information avoidance are the mechanisms humans natural used for coping with uncertainties and adapting to environmental stressors. Uncertainties are rooted in knowledge gaps. In social sciences, the relationship between knowledge gaps and perceived risk have received little attention. A review of the information science literature suggests that few studies have been devoted to the investigation of the role of this relationship in motivating information-seeking behavior. As an effort to address the lack of theory building in the field of information science, this study attempts to construct a model of information seeking under risk (MISR) by examining the relationships among perceived risk, knowledge gap, fear arousal, risk propensity, personal relevance, and deprivation and interest curiosity as antecedents to motivation to seek information. An experimental approach and a scenario-based survey method are employed to design the study. Partial least square structural equation modeling (PLS-SEM) analysis was conducted to test the relationships in the proposed model. Perceived risk was found to be a highly significant predictor of information seeking in moderately high-risk situations. Similarly, personal relevant has a significant negative effect on perceived risk and its interaction with knowledge gap motivates information seeking.
A Grounded Theory Model of the Relationship between Big Data and an Analytics Driven Supply Chain Competitive Strategy
Authors:   , Baitalmal Mohammad Hamza
Published: February 2025

The technology for storing and using big data is evolving rapidly and those that can keep pace are likely to garner additional competitive advantages. One approach to uncovering existing practice in a manner that provides insights for building theory is the use of grounded theory. The current research employs qualitative research following a grounded theory approach to explore gap in understanding the relationship between big data (BD) and the supply chain (SC). In this study eight constructs emerged: Organizational and environmental factors, big data and supply chain analytics, alignment, data governance, big data capabilities, cost of quality, risk analysis and supply chain performance. The contribution of this research resulted in a new theoretical framework that provides researchers and practitioners with an ability to visualize the relationship between collection and use of BD and the SC. This framework provides a model for future researchers to test the relationships posited and continue to extend understanding about how BD can benefit SC practice. While it is anticipated that the proposed theoretical framework will evolve as a result of future examination and enhanced understating of the relationships shown the framework presented represents a critical first step for moving the literature and practice forward.
Disaster Preparedness in Escambia County Florida: The Influence of Oral Narratives
Authors:   , Vanlandingham Keith Marcel
Published: February 2025

This work addresses hurricane preparedness in Escambia County, Florida. It explores preparing for hurricanes as an informal learning process occurring within personal networks and embedded in beliefs, values, and attitudes. Findings reveal that participants learned to prepare from their parents in childhood and improved upon that knowledge through direct experience in adulthood. Later, they passed this knowledge on to their children as well as co-workers. These preparations are embedded in beliefs of self-determination and attitudes of endurance. However, this body of knowledge and their respective practices are not equally accessible to all. Recommendations are provided so local organizations can incorporate local knowledge and practices with preparedness improvement efforts and foster social cohesion as well.
Autonomic Nerve Activity and Cardiovascular Function in the Chicken Embryo (Gallus gallus)
Authors:   , Onyemaechi Clinton
Published: February 2025

The goal of this study was to build on the historic use of the avian model of development and also to further the knowledge of autonomic nervous system (ANS) regulation of cardiovascular function in vertebrates. Vasoactive drugs sodium nitroprusside, a vasodilator and phenylephrine, a vasoconstrictor were used to study the correlation of cardiovascular function relationship with nerve activity, both sympathetic and parasympathetic (vagal). Additionally, ANG II was used to assess its effects on vagal inhibition. The present study shows that pharmacologically-induced hypertension is associated with a fall in mSNA, indicating that the capacity for sympathetic autonomic cardiovascular regulation is established by late incubation however, late-stage embryonic chickens did not show a significant increase in mSNA during hypotension. The hypotensive response of the embryo was not accompanied by the expected inhibition of vagal discharge; however a slight but insignificant reduction in vagal discharge was noted. When vagal efferent output was isolated, a significant drop in vagal efferent activity was noted in response to hypotension. The present study showed late-stage embryonic chickens lack a vagal response to hypertension in both efferent and sensory limbs. In this study, vagal discharge was reduced from baseline levels in response to Ang II. Collectively, the present study indicates that the lack of a decreased heart rate, in response to increases in Pm caused by Ang II, is due to a central inhibitory action of Ang II on the vagus. Data from the present study suggests that although autonomic interaction with the cardiovascular system in present in late-stage chicken embryos, it is still underdeveloped and possesses a limited capacity.
Long-Term Citizen Science Water Monitoring Data: An Exploration of Accuracy over Space and Time
Authors:   , Albus Kelly
Published: February 2025

The Texas Stream Team (TST) is one of an increasing number of citizen science water monitoring programs throughout the US which have been continuously collecting surface water quality data under quality assurance protocols for decades. Volunteer monitoring efforts have generated monitoring datasets that are long-term, continuous, and cover a large geographic area - characteristics shown to be valuable for scientists and professional agencies. However, citizen science data has been of limited use to researchers due to concerns about the accuracy of data collected by volunteers, and the decades of water quality monitoring data collected by TST volunteers is not widely used, if at all. A growing body of studies have attempted to address accuracy concerns by comparing volunteer data to professional data, but this has rarely been done with large-scale, existing datasets like those collected by TST. This study assesses the accuracy of the volunteer water quality data collected across the state of Texas by the TST citizen science program between 1992-2017 by comparing it to professional data from corresponding stations during the same time period, as well as comparing existing and experimental data from a local TST partner agency. The results indicate that even large-scale, existing volunteer and professional data with unpaired samples that may have been taken months apart can show statewide agreement of 80% for all parameters (DO = 77%, pH = 79%, conductivity = 85%) over the 38 years of sampling included in the analyses, across all locations. The local case study using paired datasets for which a greater number of factors were controlled for show an even higher agreement between volunteers and professionals (DO = 91%, pH = 87%, conductivity = 100%) and show no significant difference between experimental and existing sampling data. The results from this study indicate that TST has been collecting water sampling data for decades that is comparable to professional data and provides compelling evidence for researchers and managers to better utilize TST's and other large-scale monitoring datasets already in existence from similar citizen science water monitoring programs across the country.
Mass Spectrometry-Based Identification of Ceramic-Bound Archaeological Protein Residues: Method Validation, Residue Taphonomy, and Prospects
Authors:   , Barker Andrew Lewis
Published: February 2025

Despite the variety of successful reports of the preservation, recovery, and identification of archaeological proteins in general, there are few positive reports regarding mass spectrometry-based identification of ceramic-bound proteins. In large part, this shortage is due to the lack of consideration for the unique taphonomic histories of such residues and, in general, methods development. Further, because negative results are rarely published, there is no baseline to which results can be compared. This paper attempts to address these challenges via a multi-pronged approach that uses mass spectrometry and complementary approaches to evaluate ceramic-bound protein preservation in both controlled, actualistic experiments, and in archaeological artifacts. By comparing the results obtained from protein-spiked, experimentally-aged ceramic to those obtained from both faunal and ceramic archaeological materials, an enhanced perspective on protein preservation and subsequent recovery and identification is revealed. This perspective, focusing on taphonomy, reveals why negative results may be the norm for ceramic artifacts when non-targeted methods are employed, and provides insight into how further method development may improve the likelihood of obtaining positive results.
Key Factors Influencing Retention Rates among Historically Underrepresented Student Groups in STEM Fields
Authors:   , Premraj Divya
Published: February 2025

The aim of the study was to identify the factors that have an influence on the completion rates of undergraduate students in the fields of science, technology, engineering and mathematics (STEM). Using Tinto's retention rate theory as the theoretical foundation, data were collected from freshman who were enrolled in the years 2005 to 2008. Results showed gender and first-generation status were significant predictors of STEM completion and time taken to complete the degree. Institutional bias played a role in race/ethnicity not being a factor affecting completion rates, as this study was conducted at a Predominantly White Institution. SAT scores and first and second-year college GPA showed to have the most prominent influence on both STEM completion rate and time taken to complete the degree. Females with higher first-year college GPA and higher high school rank finished faster. Similar results were found with first-generation students as well. Students belonging to ethnic minority groups with higher SAT scores and college GPA had greater success in STEM fields as well. The study results can be used to increase completion rates of underrepresented students in the STEM fields, given what we know about the interactions between underrepresented student groups and the most important predictors.
Welcoming Communities: Examining the Experiences of Dallas Area Immigrants on the Path to U.S. Citizenship
Authors:   , Fink Madeline
Published: February 2025

The U.S. citizenship application process is a legal and symbolic journey shaped by many cultural processes. This research project aims to bring to light the experiences of immigrants and citizenship applicants living in Dallas, Texas, to promote a better understanding of Dallas' increasingly diverse population. In addition, the purpose of this project is to provide insights to a specific client, the office of Dallas Welcoming Communities and Immigrant Affairs, about Dallas' lawful permanent residents who are eligible for citizenship and their reasons for pursuing citizenship status. The data for this project was collected through observation at various citizenship workshops and community events, as well as through semi-structured interviews with 14 U.S. citizenship applicants. Reasons for applying for U.S. citizenship discussed in this project include a desire for membership in U.S. society, access to better educational and economic opportunities, improved ease of travel and the desire to vote. Barriers to the citizenship process discussed in this project include the amount of time one must dedicate to the application, lack of clear knowledge about the process and the financial cost of the application. Other themes include the effects of capital on applicant's experience with the citizenship process, symbolic meanings of citizenship, transnationalism and ideas of deserving and undeserving surrounding the issues of residency and U.S. citizenship.
Dis/Appearance, In/Visibility and the Transitioning Body on Social Media: A Post-Qualitative and Multimodal Inquiry
Authors:   , Jenkins Kevin
Published: February 2025

Text component of a doctoral dissertation, which references the full dissertation content in a multi-media web-based format. It includes a background statement, acknowledgements section, printed navigation guide and site map for the website, and a full list of references.
Using Google Docs to Support Collaborative Learning and Enhance English Language Skills among Non-Native English Speaking Students
Authors:   , Mahmood Nafisa
Published: February 2025

Collaborative writing technologies such as Google Docs is believed to be a helpful tool in supporting the development of constructivist learning environments. However, not much research has been done among special populations outside the United States. This dissertation examines how using google docs can enhance collaborative learning among non-native English-speaking students at a university in Oman. A total of 52 students participated in this study, where they completed a collaborative writing activity using Google Docs. This exploratory study yielded quantitative as well as qualitative data. Interviewees shared their experience of using Google Docs for the collaborative writing activity. The research shows that Google Docs promoted collaborative interactions among students, such as learning from each other and communicating with the teacher. Interestingly, the data indicate that students used alternate social media such as WhatsApp to communicate with their group mates regarding the collaborative writing activity. Overall, the results obtained here confirm that the Google Docs can be used to enhance collaborative learning among non-native English-speaking students.