Work–family conflict and crossover in volunteer emergency service workers

Abstract

A growing literature indicates that organizational and work demands place pressure on the partners and families of volunteer workers as it does on paid workers. This study evaluated a conceptual model integrating work–family conflict and stress crossover theoretical frameworks, to investigate the mechanisms by which emergency service volunteer work, specifically, predicts outcomes for the partners of volunteers. Matched data from 102 couples in which one partner was an Australian emergency services volunteer – firefighter, ambulance officer or emergency rescue volunteer – were analysed using structural equation modelling analyses. Findings suggested that one mechanism by which inter-role conflict related to partner adjustment was through elevated withdrawn marital behaviour and decreased intimacy reported by the couple, which indirectly affected partners’ distress. This finding regarding withdrawn behaviour appears to be novel and may also be applicable to paid workers. Alternative mechanisms involving role overload and angry marital behaviour were not supported. These findings extend limited research which has adapted organizational theory to understand processes affecting volunteer workers, and advance conceptual accounts of the mechanisms through which the partners and families of workers are impacted by inter-role conflict.     

The Discourse of Dress and Appearance: Identity Talk and a Rhetoric of Review

This article examines how identities are constructed and maintained via talk about personal dress and appearance. In this article, we introduce the concept of rhetoric of review, which is defined as the taken-for-granted rules that guide the evaluations of the appearances of self and others. Three basic components of a rhetoric of review are identified: moral precepts, program neutralizations, and review neutralizations. Data were derived from eight in-depth interviews with eighteen sorority members from a single university in the Southeastern United States. These data were used to expand Stone's (1962) conceptual framework of program and review by including Sykes and Matza's (1957) neutralization techniques. The purpose of this article is to bridge the interactionist perspectives on appearance and identity talk so as to augment our understanding of the discourse of appearance.     

Modeling developmental data using U-shaped threshold dose-response curves

This paper develops threshold models for developmental toxicity data. The distinguishing feature of these threshold models is their flexibility in modeling data below threshold with a U-shaped function if the data warrants. The method is applied to actual data from a developmental study which exhibits U-shaped behavior in early dose groups. Results from a simulation study demonstrate the flexibility of the threshold model to pick up on U-shaped trends in the data. In addition, the simulation study reveals important considerations in design of developmental studies.     

Semi-iterative missing value estimation

Several iterative methods for calculating the least squares estimates of missing values in a designed experiment are reviewed. Problems of slow convergence, unreliability and undue complexity are exposed. A new method is proposed which largely overcomes these problems.     

A Parametric Model for Detecting Hormetic Effects in Developmental Toxicity Studies

Hormetic effects have been observed at low exposure levels based on the dose-response pattern of data from developmental toxicity studies. This indicates that there might actually be a reduced risk of exhibiting toxic effects at low exposure levels. Hormesis implies the existence of a threshold dose level and there are dose-response models that include parameters that account for the threshold. We propose a function that introduces a parameter to account for hormesis. This function is a subset of the set of all functions that could represent a hormetic dose-response relationship at low exposure levels to toxic agents. We characterize the overall dose-response relationship with a piecewise function that consists of a hormetic u-shape curve at low dose levels and a logistic curve at high dose levels. We apply our model to a data set from an experiment conducted at the National Toxicology Program (NTP). We also use the beta-binomial distribution to model the litter response data. It can be seen by observing the structure of these data that current experimental designs for developmental studies employ a limited number of dose groups. These designs may not be satisfactory when the goal is to illustrate the existence of hormesis. In particular, increasing the number of low-level doses improves the power for detecting hormetic effects. Therefore, we also provide the results of simulations that were done to characterize the power of current designs in detecting hormesis and to demonstrate how this power can be improved upon by altering these designs with the addition of only a few low exposure levels.     

调节的正义和分配的正义

人们批评罗尔斯(Rawls)的正义论,说它要求把诸如收入和财富这样的基本生活要素纳入分配过程,从而使最少受惠者的利益得到最大的改善,就是说,它不管是否“每个人造出适合自己睡的床”。①正如德沃京(Dwokin)所指出的那样,正是这种理论,依据基本生活品的公平分配,才是“有同情心的企图而冷漠的馈赠”。本文认为,“幸运的平等主义者们”——正如安德森(ElizabethAnderson)猛烈攻击的那样——他们忽略了罗尔斯理论的两个基本特征:在分配正义中根据“纯粹程序正义”所起的作用;调节的正义和分配的正义之间的区别。当人们考虑这些特征时,罗尔斯的理论比“幸运的平等主义”看起来更为合理。