Validation of Multimedia Models Assessing Exposure to PAHs—The SOLEX Study

Polluted soils have become a public health problem. While population exposure to soil pollutants is generally quantified using multimedia models, their estimations have not been validated, and studies that attempted to do so are scarce. The objective of the SOLEX study was to compare the predictions of pyrene exposure levels (converted into 1 hydroxypyrene) computed by several models with the results of urinary 1-hydropyrene (1-HOP) assays among 110 employees working at three sites polluted during their past use as manufactured gas plants. Four models were used: AERIS (Canada), CalTOX (California, USA), CLEA (UK), and HESP (The Netherlands). Three occupational exposure scenarios--with office, mixed, and outdoor workers--were constructed, based upon job activities during two measurement campaigns, one in winter and one in summer. The exposure levels estimated by the four models could differ markedly (from 7 up to 80 times) according to the exposure scenario. Also, the predominant exposure routes differed according to the model (direct soil ingestion for HESP and CalTOX, inhalation for AERIS, and dermal absorption for CLEA). The predictions of CalTOX are consistent with the 1-HOP measurements for all the scenarios. For HESP, the consistency is observed for the scenarios, office and mixed, for which the pyrene level in the soil is low. AERIS and CLEA yield results that are systematically above the 1-HOP measurements. This study confirms that validation of the models is crucial and points out to the need to proceed to assess components of the models that are the most influential using appropriate statistical analysis in combination with true field data.     

Resources, Living Arrangements and First Union Formation in the United States, the Netherlands and West Germany

This paper addresses the impact of the previous living arrangement (living in the parental home versus living away) on first union formation. We investigate differences between the living arrangements in the impact of individual and parental resources. Analyses are performed for three countries with different welfare regimes: the USA, the Netherlands and West Germany. Many of our findings are in line with the general hypothesis that resources matter less to union formation for those living away from the parents than for those still living in the parental home. Furthermore, the results suggest that resources matter less in Conservative Continental European welfare regimes than in the USA, a Liberal Market welfare regime. Mulder, C.H., Clark, W.A.V. and Wagner, M. 2005. Resources, Living Arrangements and First Union Formation in the United States, the Netherlands and West Germany. European Journal of Population, Mulder, C.H., Clark, W.A.V. et Wagner, M. 2005. Ressources, mode de logement et première entrée en union aux états-Unis, aux Pays-Bas et en Allemagne de l’ouest. Revue européenne de démographie.     

ECONOMIC AND OTHER SOCIETAL DETERMINANTS OF THE PREVALENCE OF HIV: A Test of Competing Hypotheses

The spread of human immunodeficiency virus (HIV) is believed to result from HIV-infected individuals who are unaware of their infection and, thus, the possible consequences of their sexual behavior for others. However, differential rates of HIV infection between countries may reflect a different set of circumstances. We obtained data from the World Bank and several other sources to test eight alternative explanations for the global differences in prevalence of HIV infection: (1) economic underdevelopment, (2) inadequate public health care, (3) insufficient media, (4) political instability, (5) overurbanization, (6) social inequity, (7) religion, and (8) region. Our regression findings showed that income inequality and political instability had statistically significant positive effects on HIV/AIDS prevalence and that gender equality had a negative effect on HIV/AIDS prevalence. Religion and region were also important predictors, as countries that were predominately Muslim and Christian Orthodox generally had lower prevalence of HIV/AIDS, whereas West Africa, Central Africa, and Southern Africa had a higher prevalence of HIV/AIDS. None of the public health and media indicators were statistically relevant.     

JOB VALUES, REWARDS, AND WORK CONDITIONS AS FACTORS IN JOB SATISFACTION AMONG MEN AND WOMEN

Sex differences in job satisfaction are explored utilizing data from the National Opinion Research Center (NORC) General Social Surveys, 1974–1982. Theoretically, differences in job satisfaction are accounted for by job rewards, job values, work conditions, and individual attributes. This study confirms that women receive significantly fewer job rewards than men, have significantly different job conditions, and possess slightly different work values. However, there is no difference in job satisfaction between women and men. As a consequence, these factors may not affect levels of job satisfaction, or men's and women's job satisfaction may be determined by different determinants. Alternatively, the relative level of these factors compared to one's past or expected levels may be more important than absolute levels. The multiple regression analyses reveal that similar determinants influence women's and men's job satisfaction, but that the determinants operate differently. Age and occupational prestige were significant predictors in both full models. Moreover, for both men and women a sense that one's personal situation is improving is more important than concrete rewards.     

PREVALENCE OF FAMILY THERAPY MODELS: A RESEARCH NOTE

A survey was undertaken to assess the prevalence of family therapy models utilized by a sample of members in the American Association for Marital and Family Therapy. Frequencies and rankings of widely recognized therapeutic frameworks are reported. Brief discussion centers on the highest ranking choice, the notion of eclecticism, and cautious interpretation of the data.     

THE SYMBOLIC INTERACTIONIST “I” AS IRONIST: TOWARD ALTERNATIVE WORLDS*

Symbolic Interactionist Irony (SII) has as its aspiration, possibility, and achievement the creation of alternative worlds of seeing and doing. The constituent features of irony as detached from and skeptical of all available perspectives elevate its status to that as transcendental of extant reality. The internal logic-of-discovery and reflexive mood of SII conclude that all knowledge have an inseparable personal and autonomous basis. Hence, there are alternative ways but no final way of knowing. Knowledge without final truth value is–and can only be–an alternative world of seeing and doing. Nonetheless, an ironic alternative world is seen as an emergent that has its own integrity from the interaction of facts against analytic perspectives. The works of Erving Goffman and Joseph R. Gusfield, and their roots in the writings of Kenneth Burke, are read as having conceptual resonance for SII as an intellectual style. An ironic reading is thus offered of how SII practice is possible and how this practice refocuses the worlds of seeing and doing.     

Economic evaluation of drug court: methodology, results, and policy implications

The purpose of this study was to conduct a cost-benefit analysis of three Drug Court programs in Kentucky for two groups of Drug Court participants: program graduates and program terminators. The economic benefits of the Drug Court programs were estimated relative to a comparison group of individuals who were assessed for the Drug Court programs, but did not enter the programs. This study highlights important factors in estimating the costs and the economic benefits of a Drug Court program. Results indicated that, particularly for graduates, Drug Court involvement was associated with reductions in incarceration, mental health services, and legal costs, as well as increases in earnings and child support payments. Net benefits and benefit–cost ratios for each program are presented and policy implications are discussed.     

A stratified Warner''s randomized response model

This paper proposes a new stratified randomized response model based on Warner's (J. Amer. Statist. Assoc. 60 (1965) 63) model that has an optimal allocation and large gain in precision. It also presents a drawback of the Hong et al. (Korean J. Appl. Statist. 7 (1994) 141) model under their proportional sampling assumption. It is shown that the proposed model is more efficient than the Hong et al. (Korean J. Appl. Statist. 7 (1994) 141) stratified randomized response model. Additionally, it is shown that the estimator based on the proposed method is more efficient than the Warner (J. Amer. Statist. Assoc. 60 (1965) 63), the Mangat and Singh (Biometrika 77 (1990) 439) and the Mangat (J. Roy. Statist. SQC. Ser. B 56 (1) (1994) 93) estimators under the conditions presented in both the case of completely truthful reporting and that of not completely truthful reporting by the respondents.     

Patterns of delinquent careers: An assessment of three perspectives

The literature on careers of juvenile delinquents has been divided as to whether or not career specialization occurs. It has recently been proposed that the careers of delinquents may be viewed as arising from a Markov process with the observed arrest histories the result of a series of stochastic events. This approach has considerable appeal for it provides a wealth of information about criminal behavior, including predictions concerning the length and diversification of a delinquent career, the long-run distribution of various types of crimes, the extent of specialization in delinquency, and offense switching over the course of a delinquent career. In the present paper, the career patterns for a sample of highly delinquent, incarcerated juveniles are investigated. Although some support is found for specialization in delinquent careers, especially among robbery offenders, the findings generally support situational theories of crime.