Spatial patterns of female Ailanthus altissima across an urban-to-rural land use gradient

Ailanthus altissima is an invasive, dioecious deciduous tree common at the interface between urban and rural areas in the mid-Atlantic region, U.S.A. To examine spatial patterns of abundance and associations with land use type, we mapped all mature female trees in nine 89.5 ha plots (805.5 ha total area) across a typical urban-to-rural land use gradient using aerial images obtained via remote sensing supplemented by detailed ground referencing. Rural plots were dominated by forest and had the lowest density of mature females (0.007 females ha⁻¹); urban and suburban plots did not differ significantly in mean density (0.37 females ha⁻¹ vs. 0.34 females ha⁻¹, respectively). Individuals in urban plots were more evenly distributed, but were not associated with a wider variety of land uses and were closer to roads or openings than those in suburban plots. Given less available habitat per unit area in urban than in suburban environments, these patterns suggest that Ailanthus fits the profile of an invasive species that may be proliferating outward from urban centers. With continued disturbances associated with development in the suburban areas, and timber harvesting in the rural areas, further spread of Ailanthus seems likely.     

Young Adult Relationship Values at the Intersection of Gender and Sexuality

Recent decades have brought significant social changes in the industrialized West that may influence young adults' attitudes about intimate relationships, including changes in gender expectations and behaviors and changes in sexual attitudes and practices. We used data from the National Longitudinal Study of Adolescent Health (N = 14,121) to compare men to women and sexual minorities to heterosexuals on ratings of the importance of love, faithfulness, commitment, financial security, and racial homogamy for successful relationships. We found that nearly all young adults adhere to dominant relationship values inherent in the romantic love ideology; we found, however, modest but significant differences by gender and sexual identity in relationship values. Significant interactions demonstrated that gender and sexual identity intersect to uniquely influence relationship views.     

“Why Don’t You Just Tell Me How You Feel?”: A Case Study of a Young Mother in an Attachment-Based Group Intervention

This paper describes an attachment-based parenting intervention, the Circle of Security, and presents a case study of one participant’s experience as a member of it. The Circle of Security is a group intervention for parents of young children ages 1–5 that teaches parents to recognize and respond to their children’s alternating needs for attachment and exploration. The intervention content in group sessions relies to a great extent on discussions of videotaped vignettes of each parent–child dyad. Ultimately, the intervention focuses on strengthening parents’ capacities for empathic responsiveness to their children’s needs for them. In the second part of the paper, the case study illustrates one mother’s experience in a Circle of Security group designed for parents involved with the child welfare system as a result of substantiated maltreatment. Observations of this parent indicate that her capacity for empathic understanding was greatly strengthened, which appears to be related to important behavior change.     

Ranking inequality: Applications of multivariate subset selection

Inequality measures are often presented in the form of a rank ordering to highlight their relative magnitudes. However, a rank ordering may produce misleading inference, because the inequality measures themselves are statistical estimators with different standard errors, and because a rank ordering necessarily implies multiple comparisons across all measures. Within this setting, if differences between several inequality measures are simultaneously and statistically insignificant, the interpretation of the ranking is changed. This study uses a multivariate subset selection procedure to make simultaneous distinctions across inequality measures at a pre-specified confidence level. Three applications of this procedure are explored using country-level data from the Luxembourg Income Study. The findings show that simultaneous precision plays an important role in relative inequality comparisons and should not be ignored. An erratum to this article can be found at     

Comments on the use of multiple roles to maximize the utilization of outcome research

This paper is a brief comment on the previous paper (Goering & Wasylenki, 1993) about the use of multiple roles in facilitating the use of outcome results. The commentary recounts some important points from the paper, draws some general conclusions about assuming multiple roles, and emphasizes the importance of functioning as an internal evaluator based on personal experience working in state government and on readings from the evaluation literature.     

Risk Perception and the Value of Safety

This paper examines the relationship between perceived risk and willingness-to-pay (WTP) for increased safety from technological hazards in both conceptual and empirical terms. A conceptual model is developed in which a given household's WTP for risk reductions is a function of traditional socioeconomic variables (i.e., income and base level of risk) and perceived characteristics of the hazards (i.e., dread, knowledge, and exposure). Data to estimate the model are obtained through a combined contingent valuation and risk perception survey that considers 10 technological hazards, five of which are well-defined (e.g., death rates are known and the risks are relatively common) and five are less well-defined. Econometric results, using TOBIT estimation procedures, support the importance of both types of variables in explaining WTP across all 10 hazards. When the risks are split into two groups, the results show that WTP for well-defined hazards is most influenced by perceived personal exposure, while WTP for less well-defined risks is most influenced by levels of dread and severity.     

THE EFFECT OF POST-HIGH SCHOOL SOCIAL CONTEXT ON SELF-ESTEEM

This study examines the effect of post-high school social context on self-concept development by assessing changes in positive self-esteem (i.e., self-confidence) in a national longitudinal sample of males who entered the full-time labor force, the active federal military, or college after high school. The data are from Bachman's Youth in Transition study of 2,213 American high school students in five data waves between 1966 and 1974. Estimation of a LISREL structural equation model shows that of the three contexts, the military has the most significant (negative) net impact on self-concept, followed by work (slightly negative), and college (no impact). It is argued that the observed negative effect of the military context (and possibly the work context) is rooted in the larger sociohistorical processes impinging on the individual, and on the workers' and servicemen's low organizational positions. College's lack of effect appears to be due to the students' relatively high prior self-esteem and the possibility that college impacts social and political values more than self-worth. The number of months in a context positively relates to later self-esteem. It is argued that duration may work through acclimation to the role demands of one's context and to an increase in feelings of mastery and control.     

Smuggled Sound: Bootleg Recording and the Pursuit of Popular Memory

This paper explores the meanings that bootleg recording holds in peoples’ lives. “Bootlegging” refers to the practice of making unauthorized recordings of live performances. Our paper is an interpretive analysis of interviews with bootleg producers and collectors. In their accounts, they suggest how their activities offer an extraordinary example of what it means to participate in contemporary popular culture. As bootleggers smuggle tape recorders into concerts, or trade tapes in underground networks, they pursue rare artifacts of popular culture. Their stories of bootleg taping, collecting and trading suggest an alternative to depictions of popular culture as merely a process of production and consumption. Instead, these accounts demonstrate how some people document their participation in mass cultural events on their own terms and for their own uses. Here, bootlegging is seen as an attempt by people to capture live performances, to collect them as a source of memory and authenticity, and to mediate the events of their lives through means of technological reproduction.