Digital Commons Network^™

Managing Student Behavior: Occupational And Discrimination-Related Stress As Moderated By Coping Resources, Madeline S. Blocker

LSU Doctoral Dissertations

Student behavior management is a critical component of efficacious teaching and a leading contributor to teachers’ stress. Prior research has shown that teachers experiencing greater levels of workplace stress may utilize more punitive and exclusionary disciplinary techniques. However, these strategies often do not effectively manage student problem behavior and are associated with adverse student outcomes. In contrast, positive behavior management techniques have shown efficacy in managing student behavior while promoting students’ success and wellbeing. This study explored the relationship between teachers’ perceptions of workplace stress (i.e., work-related and discrimination-related) and their use of positive or punitive behavior management techniques. Additionally, …

Evaluation Of A Nutritional Calming Supplement For Stress Management In Beef Cattle, Randall Mallette

LSU Master's Theses

Two studies were conducted to determine the efficacy of two formulations of a nutritional calming product, Placid 1.0 and Placid 2.0, at keeping beef cattle in a calm state when exposed to environmental factors that put them into an excited state. In the pilot study, nine crossbred beef heifers were orally drenched daily for three days with 60 mL of their respective treatments, pen scores and exit scores were recorded, and blood was collected for cortisol analysis. There were no treatment effects for either treatment on any of the measured behavioral parameters or serum cortisol concentrations.

The products were …

Division I Softball Athletes' Perceptions On Stress, Coping, Performance, And Mental Health, Rhianna Weall

LSU Master's Theses

Collegiate athletes face numerous stressors in both athletic and academic areas of performance. Their perceptions of situations dictate coping responses and their ability to enact behavior or implement strategies to manage stress levels. This study investigated perceived stress and coping strategies using semi-structured in-person interviews with five current NCAA Division I softball players. Three main themes emerged from the interviews: (a) Pressure is Privilege, (b) Team Dynamic and Identity Development, (c) Softball-Centrism. In the first theme, pressure is viewed as a positive aspect and as an opportunity to perform in areas of high and low levels of confidence. Within the …

Evaluation Of Hippocampal Allostatic Load-Associated Factors In Animal Models Of Post-Traumatic Stress Disorder: Relevance To Human Ptsd, Dennis Parker Kelley

LSU Doctoral Dissertations

Post-traumatic stress disorder (PTSD) is associated with elevated allostatic load, nearly double the risk for metabolic syndrome, reduced hippocampal volume, and contextual memory processing deficits. Emerging evidence suggests that these stress effects may predispose individuals to the development of PTSD, and there is a known relationship between chronic stress and metabolic dysfunction. In this work, we utilized two rat models of PTSD to explore these connections. We used an acute predator odor stressor to investigate the relationship between PTSD-like behaviors and mitochondrial dysfunction in the hippocampus of rats, and we observed that conditioned place avoidance was associated with reduced mitochondrial …

Health Information Seeking As A Coping Strategy To Reduce The Stress Of Informal Caregivers Of Individuals With Alzheimer’S Disease And Other Forms Of Dementia, Nia Francis Mason

LSU Doctoral Dissertations

This study explored the relationship between information seeking and the perceived stress levels of informal Alzheimer’s and dementia caregivers. An additional component was added to determine whether health literacy and emotional state moderated the relationship.

The study involved conducting qualitative interviews followed by collecting survey data to answer the following research questions: 1) What motivating factors lead informal AD caregivers to seek out information? How do their information needs change? Why do informal caregivers choose to utilize certain resources more than others? Is there a correlation between information seeking and resulting stress levels? Does health literacy moderate the association between …

The Drosophila Neuroblasts: A Model System For Human Ribosomopathies, Sonu Shrestha Baral

LSU Doctoral Dissertations

This dissertation describes the use of Drosophila neuroblasts (NBs) to model human ribosomopathies; the overall goal is to understand why specific stem cell and progenitor cell populations are the primary targets in nucleolar stress as seen in the ribosomopathies. Chapter 1 provides an overview of relevant literature. Chapter 2 describes nucleolar stress in Drosophila neuroblasts as a model for human ribosomopathies. For this, we induce nucleolar stress by using the UAS-GAL4 system to express RNAi that depletes Nopp140 transcripts, and we also employ homozygous, CRISPR-Cas9-generated Nopp140 gene disruptions with a systemic null phenotype (Nopp140-/-). Embryonic lethality was observed …

Impact Of Psychological And Physical Stressors On The Exercise-Induced Immune Response In Collegiate Swimmers, Connor Alexander Kuremsky

LSU Master's Theses

Evidence suggests high-intensity exercise training increases incidence of upper respiratory infection in young-adult athletes (Spence et al. 2007). Collegiate athletes experience chronic stress, which has been shown to result in increased proportions of late-differentiated CD8+ T-cells of a dysfunctional phenotype (Bosch et al. 2009). However, many studies fail to consider possible moderators such as psychological stress and cytomegalovirus (CMV) infection. Purpose: To examine the impact of psychological stress, CMV infection, and exercise on proportions of early- and late-differentiated CD4+ and CD8+ T-cells in collegiate swimmers over a 7-month training period. Methods: Data were collected from NCAA …

New Borehole Breakout Derived Stress Constraints And Their Implications For Stress Heterogeneity Near High Risk Fault Systems In The Santa Barbara Channel, Southern California, Edward Harris Pritchard

LSU Master's Theses

The Santa Barbara Channel represents the offshore portion of the Ventura Basin in Southern California. Ongoing transpression related to a regional left step in the San Andreas Fault has led to the formation of E-W trending en-echelon fault systems, with both north and south dips, which accommodate varying rates of localized shortening across the basin. Recent studies have suggested that faults within the northern region of the channel could be capable of a multisegment rupture and producing a M_w 7.7–8.1 tsunamigenic earthquake. However, dynamic rupture models producing these results have not accounted for stress heterogeneity, which is …

The Impact Of Mindfulness Practices On Classroom Climate And Perceived Teacher Stress, Erin Kathryn Hebert

LSU Master's Theses

BACKGROUND: Teaching has been identified as the most stressful profession in the human service industry (Greenberg, Brown, & Abenavoli, 2016). Elevated teacher stress can affect teacher well-being and burnout, as well as, classroom climate and student outcomes. OBJECTIVE: The purpose of this research study was to assess whether mindfulness practices can increase positive classroom climate and decrease perceived stress in early childhood teachers. METHOD: Participating teachers were selected based on results of the Perceived Stress Scale (PSS; Cohen, Kamarck, & Mermelstein, 1983). Data were collected on the positive and negative climate objectives from the Classroom Assessment Scoring System …

Effects Of Timing Of Local Anesthesia On Physiological Responses In Calves After Dehorning, Amanda Jane Mathias

LSU Master's Theses

The American Veterinary Medical Association has stated the importance of minimizing pain associated with dehorning to limit the amount of distress and changes in the animal’s behavior and physiological states (AVMA, 2014b). The following studies aim to determine the effect of timing of lidocaine administration on physiological responses in calves after dehorning. The first study compared cortisol and substance P levels in calves dehorned immediately after administration of lidocaine and meloxicam, calves dehorned 10 minutes after the administration of lidocaine and meloxicam, and calves that were administered lidocaine and meloxicam and not dehorned. It was concluded waiting 10 minutes after …

Physiological And Psychological Well-Being During The Spring Season In Female Soccer Players, Adam Conrad Lowe

LSU Master's Theses

Female student-athletes are an understudied population that are exposed to athletic stressors in addition to academic and social stressors. This study is designed to investigate the physiological and psychological well-being during the spring season in female Division I soccer players. During the 2017 spring season, participants competed in five matches over five weeks and participated in three to four soccer training sessions in between match days. To measure well-being, both objective and subjective measures were used. Activation state was collected via the Activation Deactivation Adjective Checklist (AD-ACL) before all matches. Heart rate and heart rate variability were measured during all …

A Study Of The Relationship Of Stress, Burnout, Hardiness, And Social Support In Pre-Kindergarten And Kindergarten Teachers, Michelle A. Demeulenaere

LSU Doctoral Dissertations

The purpose of this study was to examine the relationship and differences of hardiness stress, burnout, social support, and demographics such as age, years of service, and education with 196 pre-kindergarten and kindergarten teachers’ from public, private, for-profit, and non-profit schools and to determine if hardy teachers are less vulnerable to burnout. A survey design method was chosen to produce statistics that indicated a numerical description of the relationship between these variables and the pre-kindergarten and kindergarten teacher. Four surveys were used: Burnout Inventory (MBI) (Maslach, Jackson, and Schwab, 1986) Teacher Concerns Inventory (Firmian, 1985), Dispositional Resilience Scale (DRS-15) (Bartone, …

Control, Care, And Stress: Parenting's Effect On Child Internalizing Symptoms, Maysa Kaskas

LSU Master's Theses

Theoretical models of childhood psychopathology suggest that the parent-child relationship serves an influential role in the development and maintenance of internalizing disorders such as anxiety and depression. However, there is a great deal of inconsistency in the research literature on the predictive power of parenting variables such as parental control and parental care. Furthermore, these parenting variables are often poorly defined and inconsistently operationalized across studies, hampering interpretation of results and limiting conclusions on the strength of the effect. Additionally, few studies have examined the role of parenting with careful attention to moderators. In order to investigate these problems, 189 …

Stress, Anxiety Symptomology, And The Need For Student Support Services For University Freshmen Of First-Generation Status, Low-Ses Backgrounds, And Those Registered With Disabilities, Kelly Dale Allison

LSU Master's Theses

Three populations of concern for professional social workers in higher educational settings include first-generation college students (FGCSs), students from low socio-economic (low-SES) backgrounds, and students with disabilities. As the national demand for degrees in higher education rises both socially and economically, the push for young adults’ postsecondary success becomes increasingly crucial. In college and university settings, a significant portion of students may be classified as FGCSs, low-SES, or may be registered with a disability. Examining these vulnerable populations within higher education settings, particularly regarding stress and anxiety symptomology, can help social workers recognize the social, developmental, and academic inhibitions that …

Music, Action, And Narrative In Film : An Energetic And Gestural Approach To Film Score Analysis, Zachary Hazelwood

LSU Doctoral Dissertations

Film music often contains close relationships to filmic and narrative imagery, creating complex relationships that are not always apparent. Many traditional means of musical analysis are not equipped to account for these extramusical associations. Film music analysis may benefit from considering musical gestures a way for understanding these connections to filmic and narrative imagery. Music theorists and philosophers, such as Mark Johnson, Janna Saslaw, Robert Hatten, and Steve Larson, have commented on the value of considering music through one’s embodied experiences. Film and music are inherently energetic, as both contain perceivable energies and forces. Analyzing the common energetic qualities of …

Louisiana Department Of Children And Family Services : A Case Study Of Child Welfare Workers' Burnout, Crystal Ward

LSU Master's Theses

Social work can be an extremely gratifying profession. However, social workers who are exposed to graphic realities related to vulnerable and traumatized individuals and families may experience challenging workload demands and increased levels of burnout. To best understand and support these key human service workers, it is important to investigate variables influencing levels of burnout. In this study, the author examined whether specific individual worker characteristics contribute to burnout among child welfare workers in Louisiana. Characteristics were compared to individual variables such as job tenure, agency department, supervisor/front line worker, and educational background. The Oldenburg Burnout Inventory (OLBI) was completed …

The Effects Of Natural And Anthropogenic Stressors On The Stress Response And Tissue-Level Response In Teleost Fish, Benjamin David Dubansky

LSU Doctoral Dissertations

Analysis of integrative physiological responses is a valuable approach to studying the biological impacts of natural and anthropogenic stressors in biota. By measuring fluctuations in multiple physiological characteristics, we are able to predict the impact that exogenous stressors may have on organismal health. Laboratory studies are useful in studying the effects of a single or multiple stressor interactions in a controlled environment, although field-based studies allow for the understanding of how fish are affected in situ, where multiple natural and anthropogenic stressors exist. Using laboratory and field-based experimental design, physiological indices of fish health were measured in fish exposed to …

Schizotypy: The Dynamic Relationship Between Trait And State Processes, Rebecca K. Macaulay

LSU Master's Theses

Importantly, elevations in emotional reactivity to stress are often found in individuals vulnerable for psychosis. This study investigated several meaningful factors that appear to either increase vulnerability to stress (degree of schizotypy traits, trait negative affect, low perceived control, and impaired selective attention), or increase resiliency to stress (trait positive affect). A modified Posner spatial-cueing task utilizing affective cues was employed to assess selective attention within a neutral and an uncontrollable stressor condition. Between group differences (high, medium and low in schizotypy traits) and interactions between affective traits, state affect, and perceived control were evaluated in order to shed light …

The Effect Of Loving Kindness Meditation And Student Teachers Stress And Empathy, Imre Csaszar

LSU Doctoral Dissertations

Teachers face increasing demands in the twenty-first century as they engage with students, administrators, coworkers, staff, and parents. High demands and stressors may generate feelings of emotional exhaustion in educators. If left ignored or untreated the emotional exhaustion may eventually lead to burnout and impairment. This prospectus highlights a study designed to explore a preventative option to mitigate the experience of stress felt by student teachers through a structured, guided mindfulness training practice: loving kindness meditation.

Predator-Prey Interaction In Estuarine Bivalves: Size Selection, Effects Of Salinity, And Indirect Interactions, Barry Richard Aronhime

LSU Doctoral Dissertations

High stress environments can reduce species diversity. How such stress-induced reduction in predator diversity impacts prey survival is less well studied. Brackish waters in estuaries are stressful, species depauperate areas, but also prime oyster habitat in Louisiana. Surveys revealed reduced bivalve predator diversity at the low salinity (high stress) site. Exclosure experiments indicated highest prey mortality at the high salinity (low stress) site. Predator enclosures corroborated the field study results, with reduced consumption rates at the low salinity site for both stone crabs, Menippe adina and oyster drills Stramonita haemastoma, but not blue crabs, Callinectes sapidus. Blue crab mortality in …

Post-Diaster Family Resilience: The Use Of Humor As A Coping Strategy, Bridgette Boe O'Connor

LSU Master's Theses

The purpose of this study was to investigate the use of humor as a coping strategy among Hurricane Katrina survivors. The data for this study were collected in the first wave of a larger project on families and disasters. Using Geographic Information Systems (GIS) by combining Census data with storm damage estimates and purposive sampling, 50 participants affected by Hurricane Katrina from a single suburban community in Southern Louisiana in early spring 2006 were recruited and interviewed. When the interviews were qualitatively analyzed with a focus on humor, it became clear that families used humor even at such a devastating …

Developing Tools To Identify Factors That Limit Production In Coastal Marshes, Vanessa Danielle Tobias

LSU Doctoral Dissertations

Marsh loss is a problem in many areas around the world. In Louisiana’s coastal marshes, where Spartina patens is the most common plant, restoration and management seek to slow wetland loss rates that average approximately 77.4 km2/year. To combat the problem, scientists and managers require tools to determine local causes and evaluate the effectiveness of management techniques. Current methods for identifying factors that limit productivity in marshes are too time-consuming or expensive for wide-spread, regular use. Critical values of elemental concentrations in plant tissue are widely used to diagnose mineral deficiencies and toxicities in agricultural crops, however. I used the …

Effects Of Physical And Mental Tasks On Heart Rate Variability, Satya Anasuya Paritala

LSU Master's Theses

Demands at work are associated with an increased risk of cardio vascular diseases, but little is known about its underlying connection. The purpose of this study was to evaluate the effects of physical and mental tasks that induced stress, on Heart Rate Variability (HRV). Another aim was to observe the trends in subjective workload ratings in conjunction with the physiological response of the heart and also to assess the comfort level of the participants while wearing the heart rate monitor and performing tasks. Heart rate was recorded while at rest and while performing the tasks. Subjective workload ratings were obtained …

Detection Of Stress Biomarkers In Sperm, Embryonic, And Early Larval States Of Aquatic Invertebrates Following Pesticide Exposure, Karen Perry Favret

LSU Doctoral Dissertations

Current regulatory testing provides the basis for determining acceptable levels of pollutants in the environment, yet these acceptable levels of contaminants have resulted in undesirable consequences to organisms. The purpose of this dissertation was to test the hypothesis that biomarkers of cellular stress could be detected from sub-lethal exposure to pesticides in sperm and early life stages of broadcast spawning invertebrates. Exposures were conducted on oyster (Crassostrea virginica), mussel (Mytilus galloprovincialis and Dreissena polymorpha), and sea urchin (Lytechinus variegatus) embryos and larvae for 4 and 24 h to Bayluscide® and Roundup®. DNA fragmentation, a characteristic of apoptotic cells, was detected …

Development Of A Rapid And Effective Screening Method For Basal Stress Tolerance Of Petunia X Hybrida, Miao Liu

LSU Master's Theses

High temperature and drought stress are two of the greatest impediments to bedding plant growth and development. The objective of this study was to develop a rapid and effective protocol for screening Petunia x hybrida for basal heat or drought tolerance. A practical growth system for measuring seedling growth, or seedling growth sensitivity test (SGST), was first established. Based on this protocol, radicle growth rate was chosen over hypocotyl growth as the most reliable and accurate measurement for the SGST. Nineteen petunia cultivars from three plant classes (floribunda, grandiflora, or spreading) were previously evaluated, where cultivars within the same plant …

Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt

LSU Master's Theses

Unstressed and stressed quail hens selected for exaggerated (HS, high stress) rather than reduced (LS, low stress) plasma corticosterone (B) response to brief restraint deposit more B into their eggs than do their LS hen counterparts. HS hens implanted with B also show reduced egg lay when compared to LS- and HS-control and LS-B-implanted hens. Herein, the effects of stress line on length of egg incubation (LEI) and chick body weight at emergence (BWTE) (Exp. 1) and the interactive influences of line with maternal B-treatment (sub-Q control, CON-, or B-implants) on LEI (Exp. 2) and on egg fertility (FERT), total …

Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis

LSU Master's Theses

Increased fearfulness has been associated with adrenocortical activation. Maternal corticosterone (B) treatment increases egg yolk B, and elevated B in ovo enhances chick avoidance of humans. Quail selected for exaggerated (high stress, HS) as opposed to reduced (low stress, LS) plasma B response to stress are more fearful, and more B is found in the egg yolks of HS than LS hens. Therefore, the underlying fearfulness (tonic immobility, TI) and timidity (hole-in-the-wall box, HWB, emergence) responses were assessed in chicks hatched from eggs of LS and HS hens implanted with silastic tubes containing no B (CON) or B (B-IMPLANT) during …

The Effect Of Food Deprivation On Cigarette Smoking In Females, Darla E. Kendzor

LSU Doctoral Dissertations

Studies have shown that food deprivation is associated with increases in the self-administration of nicotine and other substances in laboratory animals. However, little is known about the effects of food deprivation on substance use in humans. The purpose of the present study was to compare smoking rates, expired carbon monoxide levels, and smoking topography in 15 female participants during a state of acute food deprivation and in a non-deprived state. A within-subjects design was utilized to test the primary hypotheses that smoking rate and expired carbon monoxide levels would be greater among the participants in the food-deprived condition than in …

Effects Of 5-Ht2 Receptor Ligands On Tail Pinch-Induced Stress Responding And Open Field Behavior, John K. Hearn

LSU Master's Theses

Stress is known to exert an influence on neuroendocrine, autonomic, hormonal, and immune functioning. As a result of the debilitating effects of stress on numerous bodily systems, there exists a large body of research devoted to the etiology, physiological sequelae, and treatment of the condition. Further, the neurotransmitter serotonin (5-HT) has been implicated in stress responding. Presently, there is conflict in the literature as to the precise role serotonin plays in mediating the stress response. This study was an attempt to further elucidate the role of 5-HT in mediating an organism’s response to tail pinch stress and the open field. …

The Effects Of Auditory Distraction On Attention Performance In Asymptomatic College Students With A History Of Mild Head Injury, John H.,Ii Denning

LSU Doctoral Dissertations

Introduction: The majority of individuals experiencing a mild head injury (MHI) recover fully experiencing few residual symptoms. Some individuals who fully recover have shown evidence of residual, albeit subtle, brain functioning disturbances on tasks requiring high levels of cognitive effort. Also, memory complaints in MHI patients may be related to these subtle difficulties when cognitive resources are overwhelmed. This study assessed a group of asymptomatic college students with a history of MHI to determine if there were any residual attention difficulties as well as increased memory complaints. Method: One-hundred twelve college students with and without a history of MHI were …