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2013

Stress

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Articles 31 - 60 of 66

Full-Text Articles in Social and Behavioral Sciences

Examining Stress And Performance Anxiety As Predicting Factors Of Athletic Burnout In Collegiate Student-Athletes, Drew Barnard May 2013

Examining Stress And Performance Anxiety As Predicting Factors Of Athletic Burnout In Collegiate Student-Athletes, Drew Barnard

Undergraduate Psychology Research Methods Journal

In the past, burnout has been a popular topic for research. However, within the realm of athletics, a majority of such research has been focused on coaches, athletic department staff, and athletic trainers. The purpose of this study was to assess potential contributing factors of burnout among student-athletes at Lindenwood University, an institution with National Collegiate Athletics Association (NCAA) Division II and Student-Life athletic programs. Completion of four questionnaires was required in this study; a Perceived Stress Scale (Cohen, 1983), a Self-Rated Anxiety Scale (Zung, 1979), a Modified Burnout Questionnaire (Harris, 2005), and a Demographic Questionnaire. The student-athletes who participated …


What Are The Relations Among Stress Perception, Health Perception And Activity Participation In School-Aged Children?, Allison Caplin Apr 2013

What Are The Relations Among Stress Perception, Health Perception And Activity Participation In School-Aged Children?, Allison Caplin

Honors Theses and Capstones

This correlational study examined possible relations among children’s activity patterns, perceived stress, and perceived health. A variety of self-report questionnaires were administered to a sample of 33 school age children. The Pediatric Activity Sort (PACS) was used to measure activity participation, a health questionnaire was used to assess health, and the Childhood Stress Questionnaire (CSQ) was used to measure perceived stress. Correlations showed no significant relationships between stress level and the amount of reported activity participation. The absence of significant relationships may be due to testing a sample of middle to upper class, Caucasian children, as there was a skewed …


Stress, Anxiety, And Somatic Symptoms: A Comparison Of Biomarkers In A Clinical Sample, David J. Finitsis Mar 2013

Stress, Anxiety, And Somatic Symptoms: A Comparison Of Biomarkers In A Clinical Sample, David J. Finitsis

Master's Theses

Anxiety disorders are the most prevalent class of mental disorders, often characterized by a chronic course and comorbid psychopathology. The anxiety-stress literature utilizing cortisol as a biomarker of the hypothalamus pituitary adrenal (HPA) axis has been inconsistent. The establishment of salivary alpha-amylase (sAA) as a biomarker of sympathetic nervous system (SNS) activation allows researchers an opportunity to examine the stress response more fully. This study sought to explore relationships between trait anxiety and salivary stress biomarkers in an outpatient sample attending a specialized anxiety treatment center. Multiple regression and moderator analyses were conducted to examine associations between psychosocial and physiological …


Flooring And Driving Conditions During Road Transport Influence The Behavioural Expression Of Cattle, Catherine A. Stockman, Teresa Collins, Anne L. Barnes, David Miller, Sarah L. Wickham, David T. Beatty, Dominique Blache, Françoise Wemelsfelder, Patricia A. Fleming Jan 2013

Flooring And Driving Conditions During Road Transport Influence The Behavioural Expression Of Cattle, Catherine A. Stockman, Teresa Collins, Anne L. Barnes, David Miller, Sarah L. Wickham, David T. Beatty, Dominique Blache, Françoise Wemelsfelder, Patricia A. Fleming

Sentience Collection

This study examined whether observers could distinguish between cattle that were exposed to various road transport conditions: Experiment 1 compared a manipulated flooring treatment (non-grip flooring, NG) with a control transport event (grip flooring, G) and Experiment 2 compared a manipulated driving style (stop-start driving, SS) with a control transport event of smooth, continuous (C) driving. The behavioural expression of cattle was assessed through the process of Qualitative Behavioural Assessment (QBA), and these assessments were tested for correlation with various physiological parameters. Fourteen Angus steers were assessed. Blood samples were collected immediately before and after transport, and heart rate and …


Stress And Social Relationships: The Role Of Corticosterone In The Formation And Maintenance Of Pair Bonds In The Monogamous Zebra Finch (Taeniopygia Guttata), Kimberly Anne Laplante Jan 2013

Stress And Social Relationships: The Role Of Corticosterone In The Formation And Maintenance Of Pair Bonds In The Monogamous Zebra Finch (Taeniopygia Guttata), Kimberly Anne Laplante

Wayne State University Dissertations

Stress and affiliative social relationships are bi-directionally related. It is well understood that social relationships can buffer the physiological response to a stressor. Conversely, there is some evidence to suggest that stress can affect the propensity to form a pair bond. Data from humans and prairie voles, monogamous rodents, suggest that activation of the hypothalamic-pituitary-adrenal axis (HPA) in males increases attraction for females. Across species, females are understudied, but evidence from the prairie vole suggests HPA activation impairs formation of partner preference, the first step in establishing a pair bond. Across taxa there is evidence that formation and maintenance of …


From College Student To Change Agent: A Triadic Model Of Self-Efficacy, Attribution, And Appraisal, Joshua M. Garrin Jan 2013

From College Student To Change Agent: A Triadic Model Of Self-Efficacy, Attribution, And Appraisal, Joshua M. Garrin

Journal of Sustainable Social Change

Beyond their newfound emancipation and opportunities for self-discovery, college students in the young adult stage of development are expected to achieve balance between their autonomous new world and the impending pressures of postgraduation life. The college student must not only reconcile issues related to identity formation, goal pursuits, and career exploration, but is expected to begin the process of identifying and developing the skills required to address salient social themes. How students establish competency beliefs, negotiate controllability over future outcomes, and appraise challenges have deep implications in their capacity to discover their social change “voice.” The following discussion proposes a …


Stress And Substance Abuse In Homeless And Matched Housed Adolescents: A Longitudinal Model, Corissa Carlson Jan 2013

Stress And Substance Abuse In Homeless And Matched Housed Adolescents: A Longitudinal Model, Corissa Carlson

Wayne State University Theses

The relationship between stress and substance abuse within an at-risk adolescent population is an important topic to research. There are several models examining the relationship between stress and substance abuse; however, this study will look to longitudinal methods to examine if there is a temporal relationship between stress and substance abuse in a high risk population. Interviews were conducted at a baseline time point as well as follow-up time points at two, five, and seven years. Two hundred fifty-four participants were retained at the two year follow-up and their data were analyzed using structural equation modeling. The two proposed models …


Altered Emotional Interference Processing In The Amygdala And Insula In Women With Post-Traumatic Stress Disorder, Steven E. Bruce, Katherine R. Buchholz, Wilson J. Brown, Laura Yan Jan 2013

Altered Emotional Interference Processing In The Amygdala And Insula In Women With Post-Traumatic Stress Disorder, Steven E. Bruce, Katherine R. Buchholz, Wilson J. Brown, Laura Yan

Psychology Faculty Works

Background: Post-Traumatic Stress Disorder (PTSD) is characterized by distinct behavioral and physiological changes. Given the significant impairments related to PTSD, examination of the biological underpinnings is crucial to the development of theoretical models and improved treatments of PTSD. Methods: We used an attentional interference task using emotional distracters to test for top-down versus bottom-up dysfunction in the interaction of cognitive-control circuitry and emotion-processing circuitry. A total of 32 women with PTSD (based on an interpersonal trauma) and 21 matched controls were tested. Event-related functional magnetic resonance imaging was carried out as participants directly attended to, or attempted to ignore, fear-related …


Socioeconomic Differences In Body Mass Index, Neighborhood Satisfaction, Stress, And Perceived Racism Among African Americans In Metropolitan Detroit, Corey Zolondek Jan 2013

Socioeconomic Differences In Body Mass Index, Neighborhood Satisfaction, Stress, And Perceived Racism Among African Americans In Metropolitan Detroit, Corey Zolondek

Wayne State University Dissertations

This exploratory study tested the research hypothesis that among African Americans in Metropolitan Detroit, neighborhood satisfaction, stress and perception of racism influence obesity differently based on income. The three expected results for the data were as follows: income does not have a link to obesity; links between BMI and the study variables (neighborhood satisfaction, stress, and perceived racism) vary according to income category; and the study variables (neighborhood satisfaction, stress, and perceived racism) influence the variability of BMI differently according to income category. The results indicate that there are no income differences in how the study variables influence obesity. Therefore, …


Social Support, Parent-Child Communication And Reactions To Pediatric Cancer Medical Procedures, Amy Marie Peterson Jan 2013

Social Support, Parent-Child Communication And Reactions To Pediatric Cancer Medical Procedures, Amy Marie Peterson

Wayne State University Dissertations

The purpose of this study was to investigate the relationships between social support, parent-child communication during pediatric cancer treatment-related medical procedures, and parent and child reactions to these procedures.

Cancer is the leading cause of disease-related death in children (ACS, 2012) and children and their parents both report that cancer-related medical procedures are worse than the disease itself (Hedstrom et al., 2003). Social support may serve as a buffer against parent and child negative responses to treatment.

One hundred and fifteen families were included in the analysis from two pediatric oncology treatment centers. Self-report questionnaire data and observational coding of …


Seasonal Stress Physiology And Body Condition Differ Among Co-Occurring Tropical Finch Species, Kimberly L. Maute, Kristine French, Sarah Legge, Lee Astheimer Jan 2013

Seasonal Stress Physiology And Body Condition Differ Among Co-Occurring Tropical Finch Species, Kimberly L. Maute, Kristine French, Sarah Legge, Lee Astheimer

Faculty of Science, Medicine and Health - Papers: part A

Seasonal changes in avian hormonal stress responses and condition are well known for common species found at temperate and arctic latitudes, but declining and tropical species are poorly studied. This study compares stress and condition measures of co-occurring declining and non-declining tropical grass finch species in Australia. We monitored declining Gouldian finches (Erythrura gouldiae) and non-declining long-tailed and masked finches (Poepila acuticauda and P. personata) during two seasons that are potentially stressful: peak breeding (early dry season when food is plentiful) and moult (late dry to early wet season when food may be scarce). We measured body condition (muscle and …


The Effects Of Multivitamin Supplementation On Diurnal Cortisol Secretion And Perceived Stress, David A. Camfield, Mark A. Wetherell, Andrew B. Scholey, Katherine H. M Cox, Erin Fogg, David J. White, Jerome Sarris, Marni Kras, Con Stough, Avni Sali, Andrew Pipingas Jan 2013

The Effects Of Multivitamin Supplementation On Diurnal Cortisol Secretion And Perceived Stress, David A. Camfield, Mark A. Wetherell, Andrew B. Scholey, Katherine H. M Cox, Erin Fogg, David J. White, Jerome Sarris, Marni Kras, Con Stough, Avni Sali, Andrew Pipingas

Faculty of Social Sciences - Papers (Archive)

Recent evidence suggests that dietary intake of vitamins, in particular the B-vitamins including B6, B9 and B12 may have a number of positive effects on mood and stress. Given the effects of stress on a range of biological mechanisms including the endocrine system, it could be reasonably expected that multivitamin supplementation may also affect markers of these mechanisms such as diurnal cortisol secretion. In the current double-blind placebo-controlled study 138 adults (aged 20 to 50 years) were administered a multivitamin containing B-vitamins versus placebo over a 16-week period. Salivary cortisol measurements were taken at waking, 15-min, 30-min and at bedtime, …


Organizational Communication And Occupational Stress In Australian Catholic Primary Schools, John De Nobile, John Mccormick, Katherine Hoekman Jan 2013

Organizational Communication And Occupational Stress In Australian Catholic Primary Schools, John De Nobile, John Mccormick, Katherine Hoekman

Faculty of Social Sciences - Papers (Archive)

Purpose: This paper reports two related studies of relationships between organizational communication and occupational stress of staff members in Catholic primary schools. Design/methodology/approach: Data from both studies were obtained using survey questionnaires. Participants were staff members of Catholic diocesan primary schools in New South Wales, Australian Capital Territory and Queensland, Australia. Research hypotheses were tested using correlation and multiple regression analyses. Findings: Ten organizational communication factors and four occupational stress domains were identified. Several organizational communication variables were found to be predictors of occupational stress in four identified domains. Practical implications: The findings provide implications for school administrators in relation …


Rectifier Capacitor Filter Stress Analysis When Subject To Regular Voltage Fluctuations, Kun Zhao, Phil Ciufo, Sarath Perera Jan 2013

Rectifier Capacitor Filter Stress Analysis When Subject To Regular Voltage Fluctuations, Kun Zhao, Phil Ciufo, Sarath Perera

Faculty of Engineering and Information Sciences - Papers: Part A

Lamp flicker levels which arise as a result of voltage fluctuations can exceed limits set by appropriate standards. New lamp types such as compact fluorescent lights (CFLs) are less sensitive to voltage fluctuations as their flicker characteristics are considerably different compared to those of the traditional incandescent lamp. These differences could support the moderation of the present voltage fluctuation and flicker standards and hence the associated limits. The potential detrimental effects on electrical equipment which may be caused by relaxation of these limits should be investigated before any changes to the present standards take place. The impact of voltage fluctuations …


A Density- And Stress-Dependent Elasto-Plastic Model For Sands Subjected To Monotonic Undrained Torsional Shear Loading, G Chiaro, J Koseki, L. I Nalin De Silva Jan 2013

A Density- And Stress-Dependent Elasto-Plastic Model For Sands Subjected To Monotonic Undrained Torsional Shear Loading, G Chiaro, J Koseki, L. I Nalin De Silva

Faculty of Engineering and Information Sciences - Papers: Part A

A density- and stress-dependent elasto-plastic model for saturated sands undergoing monotonic undrained torsional shear loading is presented in this paper. The model is developed under an extended general hyperbolic equation (GHE) approach, in which the void ratio and stress level dependence upon stress-strain response of sand is incorporated. Most importantly, a state-dependent stress-dilatancy relationship is introduced to account for the effect of density on the stress ratio. Such a stress-dilatancy relation is used for modeling the excess pore water pressure generation in undrained shear conditions as the mirror effect of volumetric change in drained shear conditions. In this paper, details …


Distribution Of Reynolds Shear Stress In Steady And Unsteady Flows, Ishraq Alfadhli, Shu-Qing Yang, Muttucumaru Sivakumar Jan 2013

Distribution Of Reynolds Shear Stress In Steady And Unsteady Flows, Ishraq Alfadhli, Shu-Qing Yang, Muttucumaru Sivakumar

Faculty of Engineering and Information Sciences - Papers: Part A

This study investigates the Reynolds shear stress distribution in steady and unsteady non-uniform flows. Specifically, it deals with how to express the deviation of this turbulence characteristic from that of uniform flow line; it is found that flow acceleration can well represent the deviation of Reynolds shear stress from its standard linear distribution. By connecting the flow acceleration with Reynolds shear stress, the study demonstrates empirically that the linear distrubiton of Reynolds shear stress can be observed when the flow acceleration is zero; the concave distribution of Reynolds shear stress can be observed when the flow acceleration is negative or …


The Interactive Effects Of Coping Strategies, Gender, And Stress In The Prediction Of Internalizing Symptoms In African American Youth: An Application Of The Specificity Model, Cynthia Pierre Jan 2013

The Interactive Effects Of Coping Strategies, Gender, And Stress In The Prediction Of Internalizing Symptoms In African American Youth: An Application Of The Specificity Model, Cynthia Pierre

Master's Theses

The current study utilized a specificity framework in the examination of interactions among coping strategies, stressor domains, and participant gender in the prediction of depressive and anxiety symptoms. Participants were 273 African American adolescents (6th - 8th; mean age = 12.9; 58% female). Participants completed measures of universal and culturally-relevant coping strategies in response to a stressor. Stressors were coded by raters across dichotomous domains: interpersonality (interpersonal vs. non-interpersonal), duration (acute vs. chronic), controllability (controllable vs. non-controllable), and sexuality (sexual vs. non-sexual). T-tests were conducted to examine differences in reported coping across stress domains. Inconsistent with predictions, mean differences of …


Disseminating Research In Rural Yup’Ik Communities: Challenges And Ethical Considerations In Moving From Discovery To Intervention Development In The Translational Pathway, Inna Rivkin, Joseph E. Trimble, Ellen D. S. Lopez, Samuel Johnson, Eliza Orr, James Allen Jan 2013

Disseminating Research In Rural Yup’Ik Communities: Challenges And Ethical Considerations In Moving From Discovery To Intervention Development In The Translational Pathway, Inna Rivkin, Joseph E. Trimble, Ellen D. S. Lopez, Samuel Johnson, Eliza Orr, James Allen

Psychology Faculty and Staff Publications

The native people of Alaska have experienced historical trauma and on-going rapid, often externally imposed changes in culture and lifestyle patterns. As a consequence, these populations shoulder a disproportionately high burden of psychological stress. Yup'ik communities in the Yukon Kuskokwim Delta region in Southwest Alaska have experienced epidemics and forced acculturation, contributing to behavioural health issues, including substance abuse and suicide. Cultural loss in Yup'ik communities has resulted in generational gaps that disrupt the transmission of cultural traditions and values important for well-being. Despite these intrusions, Yup'ik communities have retained cultural traditions which act as protective factors against the development …


Predictors Of Resilience Among Hispanic Adults: Stepwise Analyses From Late Adolescence To Adulthood, Katherine Marie Aguirre Jan 2013

Predictors Of Resilience Among Hispanic Adults: Stepwise Analyses From Late Adolescence To Adulthood, Katherine Marie Aguirre

Open Access Theses & Dissertations

Background: The focus of this study was factors that affect resilience as a health outcome among Hispanic adults. Some Hispanics and other members of disadvantaged and vulnerable populations have developed remarkable ways of coping with adversity, such as positive reframing (Farley, Galves, Dickinson, & Perez, 2005). Purpose: This research aimed to examine various ways of coping in response to difficult life situations for Hispanic adults and identify those that are associated with resilient outcomes. Methods: The present sub-study focused on difficult life problem narratives from the semi-structured interviews conducted in Dr. Felipe González Castro's Corazón projects (Castro, Kellison, Boyd & …


Brain Mechanisms Underlying The Impact Of Attachment-Related Stress On Social Cognition, Tobias Nolte, Danielle Z. Bolling, Caitlin M. Hudac, Peter Fonagy, Linda Mayes, Kevin A. Pelphrey Jan 2013

Brain Mechanisms Underlying The Impact Of Attachment-Related Stress On Social Cognition, Tobias Nolte, Danielle Z. Bolling, Caitlin M. Hudac, Peter Fonagy, Linda Mayes, Kevin A. Pelphrey

Department of Psychology: Faculty Publications

Mentalizing, in particular the successful attribution of complex mental states to others, is crucial for navigating social interactions. This ability is highly influenced by external factors within one’s daily life, such as stress. We investigated the impact of stress on the brain basis of mentalization in adults. Using a novel modification of the Reading the Mind in the Eyes Test (RMET-R) we compared the differential effects of two personalized stress induction procedures: a general stress induction (GSI) and an attachment-related stress induction (ASI). Participants performed the RMET-R at baseline and after each of the two inductions. Baseline results replicated and …


Examination Of The Impact Of Race-Related Stress And Culture-Specific Coping On Burnout And Compassion Fatigue In Black Nursing Assistants, Marika A. Maris Jan 2013

Examination Of The Impact Of Race-Related Stress And Culture-Specific Coping On Burnout And Compassion Fatigue In Black Nursing Assistants, Marika A. Maris

Seton Hall University Dissertations and Theses (ETDs)

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Ocbs And Strain: The Moderating Role Of Control, Kevin Loo Jan 2013

Ocbs And Strain: The Moderating Role Of Control, Kevin Loo

USF Tampa Graduate Theses and Dissertations

Organizational citizenship behaviors (OCBs) are typically assumed to be beneficial to employees and organizations. However, research has recently questioned this assumption. This study seeks to identify when OCBs are related to various strains and are detrimental to the employee or the organization. Specifically, using a stressor-strain model, it is hypothesized that in general, OCBs will be related to work effort; however, when employees feel pressured to perform OCBs, and thereby feel less control, OCBs will be more related to various strains. The hypotheses were partially supported: under all conditions, OCBs were related to effort, but under conditions of feeling forced, …


Respite Care, Marital Quality, And Stress In Parents Of Children With Autism Spectrum Disorders, Amber Harper, Tina Taylor, James Harper, Susanne Olsen Roper, Mikle South Jan 2013

Respite Care, Marital Quality, And Stress In Parents Of Children With Autism Spectrum Disorders, Amber Harper, Tina Taylor, James Harper, Susanne Olsen Roper, Mikle South

Faculty Publications

Parents of children with autism spectrum disorders (ASD) are at risk for having higher stress and lower marital quality than other parents. Survey data regarding respite care, marital quality, and daily hassles and uplifts were obtained from 101 mother-father dyads who were together raising at least one child with ASD (total # of children = 118). Number of hours of respite care was positively related to improved marital quality for both husbands and wives, such that a one-hour increase in weekly respite care was associated with a one-half standard deviation increase in marital quality. This relationship was significantly mediated by …


Effects Of Fouling On The Stress-Strain-Degradation Behaviour Of Rail Ballast, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn Jan 2013

Effects Of Fouling On The Stress-Strain-Degradation Behaviour Of Rail Ballast, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Nimbalkar, Cholachat Rujikiatkamjorn

Faculty of Engineering and Information Sciences - Papers: Part A

Ballast is most commonly used as a structural component of rail track due to its high load bearing capacity, resiliency and rapid drainage. However, ballast along coal freight corridors often becomes fouled due to spilling of coal from moving wagons, in addition to further track deterioration attributed to particle breakage and pumping of soft subgrade. Highly fouled ballast needs to be cleaned or replaced to maintain the desired track resiliency, load bearing capacity and the track alignment. In order to identify the risk associated with fouling, it is important to accurately assess the amount of fouling. In this paper, the …


Simulating The Stress And Strain Behavior Of Loess Via Scc Model, M D. Liu, J Liu, S Horpibulsuk, W Huang Jan 2013

Simulating The Stress And Strain Behavior Of Loess Via Scc Model, M D. Liu, J Liu, S Horpibulsuk, W Huang

Faculty of Engineering and Information Sciences - Papers: Part A

The behaviour of collapsible soils (loess) is studied in this paper. Simulations of the stress and strain behaviour of the soil are made via the theoretical framework of Structured Cam Clay, with the effect of glutinous ingredient in loess suggested to be modelled as cementation effect. Based on the simulations, the capacity of the model for representing the behaviour loess is investigated, and discussions on modelling the behaviour of collapsible soil in general are given.


Clinicians’ Reports Of The Impact Of The 2008 Financial Crisis On Mental Health Clients, Donna M. L. Heretick Jan 2013

Clinicians’ Reports Of The Impact Of The 2008 Financial Crisis On Mental Health Clients, Donna M. L. Heretick

Journal of Social, Behavioral, and Health Sciences

This study investigated the impact of the 2008 economic crisis on mental health clients. One hundred and three mental health providers (101 being psychologists) from California, Colorado, and Arizona completed an online survey. Following Lazarus’ stress theory, social identity theory, and the finances-shame model, several moderator variables were evaluated for impact of financial crisis: gender, age group, previous mental health, lifestyle threat, and sources for support. As predicted, male and female clients were generally described as equally stressed, but stress responses differed. Financial role responsibilities and previous mental health were noted as predictors of stress. Men—as well as clients earning …


The Interaction Between The Physical Environment And Metaphysical States: The Role Of Social Anxiety And Stress In Informing Spatial Perception, Emily Koelmel Jan 2013

The Interaction Between The Physical Environment And Metaphysical States: The Role Of Social Anxiety And Stress In Informing Spatial Perception, Emily Koelmel

Senior Independent Study Theses

No abstract provided.


Predictors Of Burnout And Vigor Among Clinical And Counseling Psychology Doctoral Students, Brett Swords Jan 2013

Predictors Of Burnout And Vigor Among Clinical And Counseling Psychology Doctoral Students, Brett Swords

Legacy Theses & Dissertations (2009 - 2024)

Work-related burnout, although connected to many negative outcomes (Kahill, 1988), has not been thoroughly studied in the graduate student population. The goal of the present study was to examine burnout and vigor among clinical and counseling psychology doctoral students. Based on conservation of resources theory (Hobfoll & Freedy, 1993; Hobfoll & Shirom, 2001), five variables were selected as predictors of burnout and vigor: two types of general work-related stress (i.e., pressure and threat; Stanton et al., 2001), the supervisory working alliance, financial strain, and conflict with others in the workplace. Seven hypotheses were tested about the expected relation between burnout …


Exploring The Impact Of Meditation On Attentional Allocation To Emotion, Sychopathology, And Acute Stress, In A Community Sample With Mixed Anxiety And Depression, Nicholas Thomas Van Dam Jan 2013

Exploring The Impact Of Meditation On Attentional Allocation To Emotion, Sychopathology, And Acute Stress, In A Community Sample With Mixed Anxiety And Depression, Nicholas Thomas Van Dam

Legacy Theses & Dissertations (2009 - 2024)

Attempts to define mindfulness in the clinical and psychological sciences have been marred by contradictions, inconsistencies, and controversies. In this wait-list (WL) controlled mindfulness meditation training (MMT) study, the efficacy and potential mechanisms of MMT was tested in a community sample with undiagnosed, but significant, symptoms of anxiety, depression, and stress. In a pre/post design, which also included 3 month follow-up, participants completed self-report measures, participated in a psychosocial stress task (before and after which they completed self-report mood questionnaires and had physiological and salivary neuroendocrine markers collected), and completed an emotional attentional blink paradigm. Compared to WL (n = …


Stress-Strain Degradation Response Of Railway Ballast Stabilized With Geosynthetics, Buddhima Indraratna, Sanjay Nimbalkar Jan 2013

Stress-Strain Degradation Response Of Railway Ballast Stabilized With Geosynthetics, Buddhima Indraratna, Sanjay Nimbalkar

Faculty of Engineering and Information Sciences - Papers: Part A

Large cyclic loading on ballasted railroad tracks is now inevitable owing to an increased demand for freight and public transport. This leads to a progressive deterioration and densification of railroad ballast and consequently to the loss of track geometry and differential settlement. Understanding these complex stress-strain and degradation mechanisms is essential to predict the desirable track maintenance cycle, as well as the design of new track. This paper presents the results of cyclic drained tests and numerical studies carried out on a segment of model railway track supported on geosynthetically reinforced railroad ballast bed. The relative performance and effectiveness of …