Digital Commons Network^™

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 …

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 …

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 …

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 …

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 …

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 …

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 …

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 …

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. …

Major And Minor Life Events As Predictors Of Medical Utilization, Gareth R. Dutton

LSU Master's Theses

Research suggests stressful life events can negatively influence physical and mental health in a number of ways. While previous research indicates both major and minor life events contribute unique variance to the prediction of physical and mental symptoms, little research has examined the relationships of both major and minor life events with medical utilization. The current study included a predominantly African American, low-income sample of adults (N = 207) attending two primary care outpatient clinics and assessed their experience of both major and minor life events over the course of one year. Medical utilization data were collected over a subsequent …

Who Helps In A Crisis: Differentiating Among Adult Children As Sources Of Support For Their Caregiving Mothers, Michael J. Patterson

LSU Master's Theses

This thesis uses a combination of quantitative and qualitative data collected from 134 mothers about their relationships with 381 adult children during the first few months after the mothers began caring for a spouse or older parent. Building on a framework that draws on theories of social structural similarity, I anticipated that adult children who shared more social statuses with their parents would be more likely to be sources of emotional and instrumental support and less likely to be sources of interpersonal stress to their caregiving mothers. Multivariate analyses revealed no effects of structural similarity and few effects of other …