The after-effects of a prolonged period of day-sleep on subjective sleep quality

The effects of day-sleep on the quality ofsleep are not restricted to the night-work period itself. Effects can be measured during night-sleep in the period following night-work. A study on these after-effects, using a self-report instrument to measure sleep quality, is described. A total of N=7O operators wcrc observed over five consecutive undisturbed nights after a working period of seven morning shifts (N= 35) and after a working period of seven night-shifts (N= 35). The quality of sleep during the third night after the night-shift period was still significantly worse than the third night after the rnorning-shift period. No differential (after-)effects were observed with respect to differences in sleep duration.     

THE RATE OF CONVERGENCE IN THE NORMAL APPROXIMATION FOR THE WILCOXON R-ESTIMATOR

We exploit the fact that the Wilcoxon score R-estimator of the slope in a linear regression model minimises Gini's mean difference of the residuals to obtain a Berry-Esseen rate of convergence result for the Wilcoxon R-estimator.     

Attributes of Successful and Unsuccessful Acquisitions of US Firms

Acquisitive growth strategies continue to be popular, in spite of increasing evidence that they often do not enhance the financial performance of acquiring firms and may adversely affect innovation. However, some acquisitions are associated with both increases in financial performance and a strengthened commitment to R&D while others experience decreases in both. Multiple theories have been offered to explain acquisitions and their outcomes, but few have received strong empirical support. This paper describes a multiple rater, multiple-case study of acquisitions that had highly favourable outcomes and others that experienced highly unfavourable outcomes. All twelve of the high performing acquisitions studied were found to exhibit the dual characteristics of friendliness during acquisition negotiations and resource complementarities between the two firms. Additionally, debt played an important role in the success (low to moderate debt) or lack of success (high or extraordinary debt) in 21 of the 24 acquisitions studied. Inadequate target evaluation was a factor in 11 of the 12 acquisitions with low performance. Importantly, the results of both sets of acquisitions suggested that a configuration of attributes affected post-acquisition performance. Other findings both supported and contradicted commonly held beliefs about acquisitions, as well as highlighted variables not typically associated with acquisition strategies. The study provides directions for future theory development and empirical research on acquisitions.     

Advocacy and ombudswork for children: implications of the Israeli experience

Israel's establishment of what is to be the first in a network of child advocacy councils is discussed in relation to child advocacy efforts in the United States. The work and structure of the Jerusalem Children's Council and its Ombudsman for Children is described. It is suggested that Israel's experience in establishing a well-functioning local child advocacy council provides a model for implementing the recommendation of the Joint Commission on the Mental Health of Children to establish a network of local child advocacy councils in the United States.     

Ideology and Social Movements: The Contributions of Habermas*

Theorists of social movements have not developed a sufficiently complex perspective of the role that ideology has in the dynamics of social movements. This essay demonstrates that Habermas’theory of the autonomy of normative structures is useful to explain the independent role of ideology in determining the direction taken by social movements. Habermas’emphasis on the interrelationship between cultural traditions, consensus formation, epistemologies, and differentiated rationalization processes furnishes an alternative to the instrumentalist and ahistorical assumptions that often characterize theorists’treatment of ideology in social movements. Empirical examples from studies of social movements are utilized to demonstrate the usefulness of Habermas’approach.     

EBV. Managing the physiological and psychosocial implications of the Epstein-Barr virus

EBV has both physiological and psychological implications. Few medical/nursing interventions are available to alleviate the physical stressors and fatigue. The primary nursing intervention, therefore, becomes one of providing emotional support and psychosocial interventions. Providing measures to ensure adequate sleep will assist the patient in more positive feelings about self. Although causation and diagnosis of this syndrome may be debated in the medical literature, the nursing role is to provide support and guidance for these patients. Longitudinal studies could be done to facilitate the understanding of the long-term effects of EBV and the outcome measures of mental health interventions.     

The Effect of Risk Beliefs on Property Values: A Case Study of a Hazardous Waste Site1

Health risk beliefs of homeowners near a landfill site were assessed in a survey and compared to expert judgments of the health risks of living near the site. A bimodal distribution of health risk beliefs suggested sharp disagreement between the experts and at least some of the residents. Correlates of high risk beliefs included perception of odor from the site, exposure to media coverage of the problem, having children living at home, age (younger respondents more concerned), and gender (females more concerned). An aggregated neighborhood health risk belief predicted reductions in home prices even after controlling for home physical characteristics, such as size and other disamenities such as proximity to a freeway. In the 4100 homes near the site, the estimated depression in property values was estimated to total about $40.2 million before the site was closed and to be about $19.7 million after closure. Implications of these results for community conflict and for benefit-cost analysis of hazard site remediation are discussed.     

Strategy-proofness on Euclidean spaces

 In this paper we characterize strategy-proof voting schemes on Euclidean spaces. A voting scheme is strategy-proof whenever it is optimal for every agent to report his best alternative. Here the individual preferences underlying these best choices are separable and quadratic. It turns out that a voting scheme is strategy-proof if and only if (α) its range is a closed Cartesian subset of Euclidean space, (β) the outcomes are at a minimal distance to the outcome under a specific coordinatewise veto voting scheme, and (γ) it satisfies some monotonicity properties. Neither continuity nor decomposability is implied by strategy-proofness, but these are satisfied if we additionally impose Pareto-optimality or unanimity. Received: 18 October 1993/Accepted: 2 February 1996