Stress, health, and the life course: some conceptual perspectives

This article proposes several conceptual perspectives designed to advance our understanding of the material and experiential conditions contributing to persistent disparities in rates of morbidity and mortality among groups unequal in their social and economic statuses. An underlying assumption is that these disparities, which are in clear evidence at mid- and late life, may be anchored to earlier circumstances of the life course. Of particular interest are those circumstances resulting in people with the least privileged statuses having the greatest chances of exposure to health-related stressors. Among the stressors closely linked to status and status attainment are those that continue or are repeated across the life course, such as enduring economic strain and discriminatory experiences. Also taking a long-range toll on health are circumstances of stress proliferation, a process that places people exposed to a serious adversity at risk for later exposure to additional adversities. We suggest that this process can be observed in instances of trauma, in early out-of-sequence transitions, and in the case of undesired changes that disrupt behaviors and relationships in established roles. Effective effort to close the systemic health gaps must recognize their structural underpinnings.     

Youth tobacco sales-to-minors and possession-use-purchase laws: a public health controversy

Tobacco use among youth remains one of our nation's most significant public health problems, and yet available evidence from prevention and cessation person-centered approaches has been mixed. Given these disappointing outcomes, some have recommended more public health approaches, and these include tobacco sales-to-minors and possession-use-purchase laws. While community members and police officials have endorsed these types of public health initiatives, many within the public health community have been either guarded or even oppositional to such approaches. The primary reasons for this controversy are reviewed in this article. Outcome studies indicate that sales-to-minors laws can be an effective step toward the reduction of youth access to commercial sources of tobacco. However, even with these laws in place, many youth indicate that they continue to have easy access to tobacco, often by means of social sources. Advocates of these approaches have argued that more comprehensive public health interventions are needed, such as programs that combine youth access and possession-use-purchase laws. This article reviews the ongoing debate behind these types of public health efforts, and examines the evidence of such programs to reduce youth tobacco use.     

The effectiveness of intervention strategies used to educate clients about prevention of upper extremity cumulative trauma disorders

The increased prevalence of work-related cumulative trauma disorders (CTDs) of the upper extremity highlights the need for effective prevention programs. This paper examines the effectiveness of different intervention strategies used to educate workers about the prevention of upper extremity CTDs. The articles reviewed include primary prevention and reinjury prevention interventions in both clinical and workplace settings. The current research findings are inconclusive. Intervention strategies may include discussion, demonstration, or practice of proper posture and body mechanics. Practice of correct techniques may not be necessary to achieve improved hand-use patterns in assembly-line workers. However, practice with intensive feedback may be necessary to achieve the best performance of hand-wrist position, but not sitting posture, in computer operators. The effects of practice on correct hand use may depend on the type of job task. Further research is needed to clarify the role of practice and feedback in CTD prevention.     

Analysis of five acoustic correlates of laughter

Five acoustic characteristics of five operationally defined laugh responses and the habitual speech fundamental frequency (F₀) from each of 11 male college students are described in this study. Findings revealed a positive correlation between the means of laugh duration and number of intensity peaks. Analysis of variance performed between each of the three F₀ measures of laughter as well as the F₀ of habitual speech indicated differences in means were not statistically significant. A significant difference was found between the means of the habitual speech F₀ and the peak laugh F₀. Implications of these findings are discussed.     

Getting Clear About the "Sign Rule"

The question of the "validity" of the "sign-rule" has been a source of continuing disagreement among sociologists. Some of the confusion surrounding this question can be dispelled by focusing on the problem of providing satisfactory interpretations for calculi constructed to represent various commentators' versions of acceptable "sign-rule" arguments. It is shown that the formulae of a calculus constructed to represent standard sign rule arguments must be interpreted in terms of propositions asserting that rankings of objects in virtue of one property are identical to rankings in virtue of another property. A system constructed on the basis of "the assumption of high correlations" is shown to involve distinctions between the logical forms of the premises and the conclusions of key arguments. This sharply limits the deductive power of this system. A third system, constructed on the basis of the "causal modeling" view of the sign rule, is shown to require an interpretation which renders the procedure irrelevant to the construction and testing of general theories.     

Children's Interaction With Commercials*

Public policy attention to numerous issues arising from children's television commercials has resulted in considerable research interest in this area. Most studies have been based on 1) cognitive developmental approaches; 2) survey methods based on parental reports of child viewing; 3) a view of the child as an atomized entity in the viewing environment. This study focuses on interactive episodes of child viewing. Behavior specimens of interactive viewing collected by naturalistic methods are presented illustrating children and parents actively shaping the commercial viewing situation.     

Political Mobilization in the Pews: Religious Contacting and Electoral Turnout

Objective . We probe the impact of voter contact by religious groups, in the form of direct attempts to encourage voters to vote in a certain way and the placement of voter guides in churches, on voter turnout among white evangelical Protestants, white mainline Protestants, white Roman Catholics, and black Protestants in 1994, 1996, and 1998. Methods . Using data from the 1994, 1996, and 1998 National Election Studies, we fit a series of logistic regression models of voter turnout that feature, as key predictors, variables indicating whether an individual was contacted by "any groups concerned with moral or religious issues that tried to encourage you to vote in a particular way" and whether "information about candidates, parties or political issues [was] made available in your place of worship before the election." Results . These forms of contact were most commonly experienced by white evangelicals and black Protestants, and in many instances such contacts accomplished their intended purpose. Conclusions . Interest group contacts—at least contacts from the types of groups examined here—have the potential to be no more effective than contacts by political parties, perhaps because their messages can be more narrowly targeted.