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Articles 1 - 14 of 14
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Developing A Nomological Network To Incorporate Learned Helplessness Into Industrial-Organizational Psychology, Nicholas Kovacs
Developing A Nomological Network To Incorporate Learned Helplessness Into Industrial-Organizational Psychology, Nicholas Kovacs
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Employees are facing personal traumas, higher stress, and work pressures that are likely to result in both short- and long-term impacts. To mitigate these negative impacts, organizations should focus on applying research related to employees’ responses to trauma and stress. Learned helplessness, which is well-established within clinical psychology and less established within the industrial-organizational literature, occurs as a direct response to perceived control over trauma and could thus relate to the ability to overcome trauma. In relation to control-related constructs, industrial-organizational researchers have focused on resilience, hardiness, and work locus of control (LOC). However, each of these constructs account for …
Influence Of Light Availability On Tree Growth, Defense, And Emerald Ash Borer (Agrlius Planipennis) Success In White Fringetree (Chionanthus Virginicus) And Black Ash (Fraxinus Nigra), Michael S. Friedman
Influence Of Light Availability On Tree Growth, Defense, And Emerald Ash Borer (Agrlius Planipennis) Success In White Fringetree (Chionanthus Virginicus) And Black Ash (Fraxinus Nigra), Michael S. Friedman
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White fringetree is a host for the invasive emerald ash borer (EAB) despite being lower quality than black ash. Observations suggest that host trees grown in full sun are more resistant to EAB than those grown in shade, however chemical defense mechanisms and the impact of environmental stress have not been assessed. We quantified constitutive and induced defenses and other characteristics white fringetree and black ash phloem tissue grown under differential light conditions, and these traits were related to EAB larval performance. White fringetree had significantly lower constitutive and induced activities of defense associated enzymes and lignin but higher phenolic, …
Biomarker-Performance Associations During Nutritional And Exercise Intervention In Air Force Personnel, Jennifer Jurcsisn
Biomarker-Performance Associations During Nutritional And Exercise Intervention In Air Force Personnel, Jennifer Jurcsisn
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This study evaluated the combined effects of an exercise intervention and nutritional supplement on biomarkers of stress and resilience, and the relationships of those markers with physical and cognitive performance. 130 healthy Active-Duty Air Force (AF) personnel were recruited to participate in a double-blind, placebo controlled 12-week exercise and nutritional intervention. Serum was collected at basal and high stress conditions pre- and post-intervention to track the following biomarkers: cortisol, dehydroepiandrosterone-sulfate (DHEA-S), norepinephrine (NE), neuropeptide Y (NPY), and serotonin. The exercise intervention significantly attenuated the cortisol response and peak stress cortisol levels. The nutritional intervention decreased peak stress NE. The selected …
Exploring The Influence Of Meditation Experience On Stress Responses And Empathy: The Mediating Role Of Self-Expansion, Jennifer N. Baumgartner
Exploring The Influence Of Meditation Experience On Stress Responses And Empathy: The Mediating Role Of Self-Expansion, Jennifer N. Baumgartner
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The purpose of the present research was to examine the influence of meditation experience on biopsychosocial responses to stress, empathy, and sense of self. An expanded sense of self was examined as a pathway through which meditation experience influences appraisals, affect, and empathy. It was expected that meditation experience would predict greater challenge stressor appraisals in response to an acute psychosocial stressor and associated affective, behavioral, and psychophysiological stress outcomes. In addition, it was expected that greater meditation experience would predict higher trait empathy and empathic accuracy. Participants (N = 110) included experienced meditators from a variety of practices and …
Correlating Innate Functional Recovery From Stroke Either With Stem Cell Proliferation And/Or Limb Rehabilitation, Devipriyanka Nagarajan
Correlating Innate Functional Recovery From Stroke Either With Stem Cell Proliferation And/Or Limb Rehabilitation, Devipriyanka Nagarajan
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In the present study 10-12 month female rats were examined for functional recovery from stroke and this recovery was compared with the stem cell/progenitor cell proliferation in the brain (which was measured by Ki67). The cell proliferation indicated by Ki67 showed a 6 fold increase in control animals compared to the rehabilitation animals. The contralateral functional recovery in control animals were 46.6% and in the rehabilitation animals were 24.5%. The physical rehabilitation was carried out to determine if limb rehabilitation can promote greater functional recovery. The results showed that when the animals were made to over use their impaired limb …
High Temperature Transient Creep Analysis Of Metals, Sara Mirmasoudi
High Temperature Transient Creep Analysis Of Metals, Sara Mirmasoudi
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The ability to design vehicles capable of reaching hypersonic speeds has become a necessity to satisfy industry requirements, hence requiring the need for better understanding of creep behavior of materials. Although the steady state creep of metals has been analyzed rigorously, there is little known about transient creep of many metals. Understanding transient creep behavior of metals is crucial in analysis and design of short term hypersonic flight applications. Hence, a transient creep analysis of 304SS, Al7075-T6, Al2024-T6, Inconel 625, Inconel 718, and Rene N4 is carried out focusing on the microstructural behavior of these metals undergoing high temperature operating …
Challenge Accepted: Self-Enhancement Through The Pursuit Of Difficulty, Julie Anne Steinke
Challenge Accepted: Self-Enhancement Through The Pursuit Of Difficulty, Julie Anne Steinke
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Individual resilience is popular topic whereby researchers attempt to identify characteristics of individuals who react positively to stress. However, such research uses a reactionary approach, attempting to characterize successful individuals after they experience adversity and does not explain why some individuals proactively seek out challenging circumstances. Pursuing challenge is a new construct that explains why individuals proactively increase stress as a strategic mechanism for developmental purposes. I developed and validated a measurement tool for pursuing challenge in multiple studies. Additionally, I explored relationships between pursuing challenge and similar constructs (e.g., grit, proactive personality, and self-efficacy), as well as the extent …
White Blood Cell Counts, Parasite Prevalence, And Plasma Cortisol Levels Of Dogs In A County Animal Shelter: Changes Over Days And Impact Of A Program Of Repeated Human Interaction, Emily S. Dudley
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Animal shelter housing is highly stressful for a dog, compromising welfare and leading to undesirable behaviors and unknown health consequences. We documented the changes in circulating numbers of white blood cells, plasma cortisol, and fecal parasite shedding of dogs housed for 10 days at a county animal shelter. White blood cell changes were most prominent on Day 10 after arrival to the shelter. Changes included increased total leukocytes, mature neutrophils, and lymphocytes, with less consistent increases in monocytes and neutrophil to lymphocyte ratio (N:L). Fecal parasite shedding was elevated and not affected by day. Cortisol levels of shelter dogs declined …
Impact Of Binaural Beat Technology On Vigilance Task Performance, Psychological Stress And Mental Workload, Elizabeth Ann Shoda
Impact Of Binaural Beat Technology On Vigilance Task Performance, Psychological Stress And Mental Workload, Elizabeth Ann Shoda
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Currently, there is only one published study examining the impact of binaural beats on the performance of a laboratory vigilance task, however this study had mixed results and left many questions unanswered. I further examined this phenomenon by using a successive vigilance task, between-subjects design, and a control condition to determine whether beta frequency binaural beats could affect vigilance performance over time and across conditions. I hypothesized that participants listening to beta binaural beats would have more hits and fewer misses on the vigilance task than participants in the control condition. In addition, I hypothesized that participants listening to beta …
Low Dose Nerve Agent Sarin Causes Dilated Cardiomyopathy And Autonomic Imbalance In Mice, Swapnil Vijay Shewale
Low Dose Nerve Agent Sarin Causes Dilated Cardiomyopathy And Autonomic Imbalance In Mice, Swapnil Vijay Shewale
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Sarin, a lethal chemical nerve agent, may be a causative factor in multifactorial syndrome implicated in the Gulf War and Tokyo terrorist attacks. While high dose results in seizure and death, low dose exposure may lead to autonomic imbalance and chronic cardiac pathologies. In the present study, echocardiography and electrocardiography were used to examine the late onset effects of a low dose sarin on cardiac structure and function in mice. Stress responsiveness of the hypothalamic pituitary adrenal (HPA) axis was also tested. Findings demonstrate changes consistent with a dilated cardiomyopathy, including left ventricular dilatation, reduced contractility, and altered electrophysiological and …
Kids Able To Fight Stress Everyday (Kafse): A Stress-Management Program For Children With Medical Diagnoses, Aimee N. Townsend
Kids Able To Fight Stress Everyday (Kafse): A Stress-Management Program For Children With Medical Diagnoses, Aimee N. Townsend
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It is estimated that 10-30% of children in the United States are currently diagnosed with a chronic illness. Due to recent medical advances and increased knowledge of disease maintenance, many of these children will live into adulthood. In addition to physical symptoms of chronic illness, recent attention has been drawn to the psychological effects of chronic illness on children and adolescents. Illustrating this fact, researchers have recently called for increased research on children with chronic illness and disease. One psychological symptom that may be considered is that of stress and its effects on this special population. As a result of …
Domain-Specific Core Self-Evaluations And Stressors As Predictors Of Strains, Michael Raymond Hoepf
Domain-Specific Core Self-Evaluations And Stressors As Predictors Of Strains, Michael Raymond Hoepf
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The current study examines the use of a frame-of-reference (FOR) in the evaluation of core self-evaluations, stressors and strains. The study investigates the prediction that using a FOR that matches predictors and outcomes will result in a stronger relationship between the constructs being measured, specifically CSE, stressors, and strains. In addition, the study examines the extent to which following this procedure will add incremental validity after non-contextualized predictors are controlled. The hypotheses in this study were generally supported, although the hypotheses related to the school domain were not supported as strongly as those related to general and work domain. The …
Team Coordination As A Mediator Of Stress Appraisals And Team Performance, Gaea Megan Payton
Team Coordination As A Mediator Of Stress Appraisals And Team Performance, Gaea Megan Payton
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Threat stress appraisals can negatively affect individuals by decreasing performance (Gildea, Schneider, & Shebilske, 2007). Performance is also influenced by a team's ability to coordinate tasks (Entin & Serfaty, 1999). This study investigated the link between team stressor appraisals, coordination, and performance. Using a simulated team environment, teams were evaluated on their perceived stress appraisals, coordination as indicated through instant messaging, and team performance. Findings showed that team stressor appraisals were marginally related to coordination and significantly related to performance. Coordination was related to team performance. Further research should be performed using varied levels of a stressful scenario to evaluate …
Stress Reducing Effects Of Oxytocin In A Maternal Separation Paradigm, Keely Jane O'Connell
Stress Reducing Effects Of Oxytocin In A Maternal Separation Paradigm, Keely Jane O'Connell
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This study compared the effects of centrally and peripherally administered oxytocin (OT) on HPA axis activity and the presence of both stress-induced active and passive behaviors in female guinea pig pups (Cavia porcellus) after 180-min of isolation . In Experiment 1, one dose of oxytocin (10μg/.2ml) was injected subcutaneously into the periphery. Plasma cortisol levels were reduced after 180-min of isolation and two passive behaviors, eye-closure and crouch, were reduced as well with the administration of oxytocin. In Experiment 2, two different doses (10μg/.2ml and 20μg/.2ml) were injected into the periphery with no significant results. In Experiment 3 one dose …