Posttraumatic Reactions among Firefighters after Critical Incidents: Cross-National Data

The presence of posttraumatic stress disorder (PTSD) symptoms and posttraumatic growth (PTG) following a critical incident were examined among firefighters from eight predominantly European countries. A sample of 1916 firefighters completed the Impact of Event Scale–Revised (IES–R) and the Posttraumatic Growth Inventory–Short Form (PTGI–SF) with reference to a critical incident they had experienced. Analyses indicated both negative and positive posttraumatic outcomes could derive from experiencing critical incidents in the line of duty. The analyses also showed country differences exist regarding firefighters’ PTSD symptoms and PTG. It is recommended that future researchers examine factors that could evoke such national differences.     

New and Expanded Concepts in Neurophysiology,Psychology, and Sociology Complementary to Llorens' Developmental Theory: Achieving Growth and Development through Occupation for Neonatal Infants and their Families

ABSTRACT

Introduction: This issue expands the Llorens’ Developmental Theory of Occupational Therapy. Llorens drew from multiple theorists from the disciplines of sociology, neurophysiology, biology, ecology, psychology, occupational science, and psychodynamics to provide the profession of occupational therapy with a unified theory to facilitate growth and development for people of all ages—from infancy to old age.

Purpose: The purpose of this issue is to analyze, synthesize, and evaluate the continued relevance of Llorens' theory. In addition, the author evaluates, recommends, and applies updated theoretical premises in the realms of psychodynamics, neurophysiology, contextual ecology, and cognitive science that reflect the relevance of occupational therapy practice for infants and their families in the neonatal intensive care unit.

New Psychological Elements: Through the appropriate use of purposeful occupational activity and affective object relationships, the expanded Developmental Theory of Occupational Therapy provides a unified theory of occupation enablement as intrinsic spatiotemporal adaptation and as extrinsic socio ? cultural and physically contextual occupational adaptation to achieve growth and development across the lifespan.     

Personal Growth Initiative and Mental Health: A Meta-Analysis

Personal growth initiative (PGI) is an individual's active and intentional desire to grow in personally important areas. In the past 20 years, a body of literature has emerged examining PGI's relationship to mental health. We conducted the first meta-analyses to synthesize this literature. Two meta-analyses examined the relationship between PGI total scores and distress (k = 22) and wellness (k = 37). Both average effect sizes were significant. We also examined the potential impact of nine moderators. The type of outcome assessed was a significant moderator for PGI and distress, and the PGI measure used was a significant moderator for PGI and wellness, accounting for 61% and 15% of the overall variance, respectively. Meta-analyses examining the relationship between the four PGI subscales (Readiness for Change, Planfulness, Using Resources, and Intentional Behavior) and distress (k = 4) and wellness (k = 7) yielded similar results to the total score analyses.     

PDGF-BB、Podoplanin在非小细胞肺癌中的表达与淋巴管生成的关系

为探讨NSCLC中PDGF-BB、Podoplanin的表达与淋巴管生成的关系,用免疫组化法,检测80例NSCLC和20例癌旁正常肺组织中PDGF-BB、Podoplanin的表达;计数LMVD,结合临床病理资料统计分析。结果PDGF-BB、Podo-planin在NSCLC中存在高表达（P〈0.05）;阳性表达组LM...     

用ROC评价AFP、VEGF和瘦素对HCC的诊断价值

用受试者工作特性曲线（ROC）对184例HCC患者和73例健康对照者的血清AFP、VEGF、Lep及三者联合检测结果进行评价。结果显示：AFP、VEGF、Lep测定结果在两组资料间比较均有统计学意义（P〈0．01）。HCC患者的AFP、VEGF、Lep与三者联合检测在ROC曲线下面积分别为0．902、0．841、0．712和0．952。AFP、VEGF、Lep对HCC的临床诊断临界点分别为25ug／L、25lng／L和15ug／L。因此,AFP、VEGF、Lep三者联合检测可显著提高对HCC诊断的灵敏度和有效性,优于AFP、VEGF、Lep的单项检测。     

Perceived fit with an academic environment: Attitudinal and behavioral outcomes

Because person–organization fit relates to important outcomes, and because fit is a time-dependent process, there exists a need to model longitudinal data related to fit. In a multi-university sample (N = 1174), we tested hypotheses concerning person–organization fit and various behavioral and attitudinal outcomes; correlations between changes in these variables over time, and the correlates of these changes. Using autoregressive modeling and latent growth curve modeling, results indicated that academic fit leads to academic satisfaction, which in turn leads to turnover intent, and to a lesser extent GPA and class absenteeism. Changes in academic fit correlated highly with similar changes in satisfaction and GPA and with opposite changes in turnover intent. Academic satisfaction did not correlate with subsequent organizational citizenship behavior (OCB) as predicted; changes across these domains were significantly related, but were small. Consistent with our hypotheses, Realistic interests correlated negatively with changes in academic fit and satisfaction. Investigative interests were correlated positively with changes in fit and initial satisfaction levels. We conclude by discussing implications, limitations, and future research concerning the longitudinal analysis of person–organization fit.     

Regularized Finite Mixture Models for Probability Trajectories

Finite mixture models are widely used in the analysis of growth trajectory data to discover subgroups of individuals exhibiting similar patterns of behavior over time. In practice, trajectories are usually modeled as polynomials, which may fail to capture important features of the longitudinal pattern. Focusing on dichotomous response measures, we propose a likelihood penalization approach for parameter estimation that is able to capture a variety of nonlinear class mean trajectory shapes with higher precision than maximum likelihood estimates. We show how parameter estimation and inference for whether trajectories are time-invariant, linear time-varying, or nonlinear time-varying can be carried out for such models. To illustrate the method, we use simulation studies and data from a long-term longitudinal study of children at high risk for substance abuse. This work was supported in part by NIAAA grants R37 AA07065 and R01 AA12217 to RAZ.     

The longitudinal relations between parenting and toddlers' attention problems and aggressive behaviors

The aim of the present study was to examine the normative developmental trajectories of toddlers’ externalizing behaviors and several maternal and paternal parenting dimensions. Latent growth models were used to determine intraindividual changes and interindividual differences in these changes. One hundred and eight boys were followed from 17 months of age to 35 months of age. A significant linear decrease in attention problems and a significant linear increase in aggressive behaviors were found. Additionally, multivariate models were tested that related the developmental trajectories of externalizing behaviors to the trajectories of the parenting dimensions. The results showed meaningful contemporary relations and relations between over-time trajectories of parenting dimensions and children's externalizing behaviors.