Differential impact of Web site content: Exploring the influence of source (public relations versus news), modality,and participation on college students’ perceptions

This experiment examined the impact of source, modality, and participation on perceptions of credibility, salience, attitudes, and general Web site evaluation. The data showed no significant differences between online stories coming from either public relations or news sources on any of the study's dependent variables. However, significant differences did emerge for the effects of multimedia and audience engagement.     

Personal heroes,religion, and transcendental metanarratives

With the increased sociological interest in popular culture, many studies have examined the hero types lauded by the media from situation comedies to movies, books, and magazines. Few studies, however, have examined who, if anybody, actual individuals identify as personal heroes. To the extent that the hero identification of individuals has been examined at all, it has generally been the hero identification of children and adolescents that has been studied. The study of heroes is important because heroes are one indicator of who we are and what we stand for. That is partly what motivates the recent attention to the media's identification of heroes. Yet while the media represent a very visible aspect of culture, who individuals privately cite as their heroes is, although less visible, just as much a part of who we are as a culture. Accordingly, this paper reports on findings from two telephone surveys conducted in Philadelphia that, among other questions pertaining to the meaning of life, asked adults over 18 whether they had any heroes and if so who those heroes were. The tendency to identify with heroes was found to be related to transcendental concerns with the meaning of life and to religiosity. Overall, the pattern of findings discloses an unstudied dimension of cultural disenchantment.     

Demographic Foundations of Political Empowerment in Multiminority Cities

As U.S. cities accommodate increasing ethnic and racial diversity, political choices may unify or divide their local populations. Those choices pull communities toward two different modes of pluralism: traditional “melting pot” assimilation or a complex mosaic of racial and ethnic assertiveness. Central to this issue is equity and empowerment, which may be accentuated by minority populations’ size, structure, and spatial concentration. We examine two potential modes of local empowerment: “dominance,” whereby each group is the majority of voters in single election districts (reinforcing separative tendencies), and “influence,” whereby a group gains “influential minority” status in several districts (reinforcing unifying tendencies).     

A study of three-dimensional curves

In certain abnormalities of spinal shape, the long axis of the spine moves out of the median sagittal plane, producing both an axial torsion and a lateral deviation out of the usual front-back plane. Clinicians need to be able to assess rapidly and accurately whether or not an individual has such an abnormality. In this paper, we examine several case studies. These are analyzed using some simple summary statistics, and the use of these methods to infer abnormality is demonstrated. Using a simple fitted model for the data, an angular estimate of abnormality is obtained. Empirical measures of abnormality based on the eigenvalues of the covariance matrix are also determined. These methods are applied to a number of individuals for whom the surface spinal profiles have been recorded and who have been assessed as normal or abnormal by clinicians.     

Characterizing Environmental Harm: Developments in an Approach to Strategic Risk Assessment and Risk Management

Environmental policymakers and regulators are often in the position of having to prioritize their actions across a diverse range of environmental pressures to secure environmental protection and improvements. Information on environmental issues to inform this type of strategic analysis can be disparate; it may be too voluminous or even absent. Data on a range of issues are rarely presented in a common format that allows easy analysis and comparison. Nevertheless, judgments are required on the significance of various environmental pressures and on the inherent uncertainties to inform strategic assessments such as “state of the environment” reports. How can decisionmakers go about this type of strategic and comparative risk analysis? In an attempt to provide practical tools for the analysis of environmental risks at a strategic level, the Environment Agency of England and Wales has conducted a program of developmental research on strategic risk assessment since 1996. The tools developed under this program use the concept of “environmental harm” as a common metric, viewed from technical, social, and economic perspectives, to analyze impacts from a range of environmental pressures. Critical to an informed debate on the relative importance of these perspectives is an understanding and analysis of the various characteristics of harm (spatial and temporal extent, reversibility, latency, etc.) and of the social response to actual or potential environmental harm from a range of hazards. Recent developments in our approach, described herein, allow a presentation of the analysis in a structured fashion so as to better inform risk‐management decisions.     

The Development of Parenting Efficacy Among New Mothers and Fathers

Predictors of prenatal and postnatal parenting efficacy were examined in a sample of 115 primiparous mothers and 73 fathers in an effort to examine the association between preexisting parental characteristics and prenatal efficacy and the association between prenatal characteristics and postnatal efficacy when aspects of the current parenting context are taken into account. The most robust predictors of maternal postnatal efficacy included both prenatal efficacy, which significantly predicted postnatal efficacy independent of all other predictors including the current parenting context, and perceived infant temperamental reactivity as both a main effect and as buffered by social support. This was not the case for fathers, whose postnatal efficacy was primarily a function of their amount of involvement in parenting tasks and social support. The differential predictors of mother and father efficacy as well as their implications for future research are discussed.