Impact of developmental variance on behavior of models for insect populations I. Models for populations with unrestricted growth

Summary The concept of developmental variance is discussed with reference to its use in models for insect populations. When included in a model, developmental variance is typically used to describe the variation of developmental periods among individuals. However, its presence in a model can also have indirect impact on survival and fertility schedules. This impact can lead to significant changes in population growth rates and generation times. These relationships between developmental variance and population growth in models are quantified and discussed.     

How Does Public Management Affect Government Performance? Findings from International Research

Despite the growing importance of public management reform aroundthe world, relatively little scholarship evaluates the contributionsof public management to government performance, that is, tothe character and consequences of service provision by publicagencies. One study (Hill and Lynn 2005) evaluated over eighthundred American empirical studies that address issues of publicmanagement effectiveness in a wide variety of fields, subfields,and disciplines. In this article we employ the analytic frameworkof Hill and Lynn—a polycentric "logic of governance"—toevaluate 193 research articles published in English that usenon-American, or what we will term international, empiricalevidence. Our evaluation reveals more similarities in Americanand non-American public management research, and in the determinantsof government performance, than one might expect, given thedistinctiveness of the American politico-administrative system.These similarities may be deceptive, however. Internationalinvestigators exhibit somewhat different modeling strategies,tending, for example, to favor more linear managerialist hypotheses—changesin structure lead to changes outcomes, for example—thanAmerican research, which is more concerned with intragovernmentalcomplexities. The fact that the use of a polycentric logic ofgovernance revealed highly suggestive similarities and differencesin the determinants of performance in public organizations suggeststhe potential value of this kind of analytic strategy in bothsingle investigations and in meta-analyses of public managementreform.     

The effects of user-generated design modifications in a general hospital

The present study investigated the effects of relatively minor design modifications in one wing of a local hospital on the organizational climate of the institution and the behavior of various user groups. Results showed that the changes had positive effects for patients and staff members on mood and morale and on the perceived quality of health care, while visitors reacted negatively to the modifications. Use of the more public areas of the experimental ward increased as a result of the alterations, especially in the evenings when more visitors were present. The positive effects occasionally spread to other wards as well.The research reported in this paper was funded by Grant SOC7508784 from the National Science Foundation.     

THE INFLUENCE OF RELATIONSHIP ENHANCEMENT TRAINING ON DIFFERENTIATION OF SELF

The effectiveness of the Relationship Enhancement (RE) program (Guerney, 1987a) in increasing functional and basic levels of differentiation of self (Bowen, 1987a) was examined. Participants were 20 married couples who received training in relationship enhancement skills over six 2 1/2-hour sessions. Measures of differentiation of self, quality of relationship, and anxiety were obtained before and after training and at follow-up. The data show that significant increases in the functional and basic levels of differentiation of self occurred, a significant increase in the quality of relationship occurred, and significant negative correlations were found between differentiation of self and anxiety.     

A decision support system for banks

Just recently, information systems with rather unique characteristics have begun to emerge. These systems usually referred to as Decision Support Systems, feature decision models, a data base and the decision maker as subsystems and are specifically oriented to supporting decision making. This article examines Decision Support Systems and their application to banks.     

Toward a Descriptive Model of Humanitarian Assistance Coordination

This paper argues that the operating environment of humanitarian assistance is best conceived as an interorganizational social network or regime and that the problem of power and authority in such situations must be re-founded or reconceived accordingly. This contention is developed to contribute to an important ongoing dialogue among analysts concerning how humanitarian aid may most effectively be delivered in the context of a realistic appraisal of the structural and operating conditions in which it is offered. The paper first outlines the primary elements of the organizational environment in which humanitarian efforts must proceed, next suggests a way of thinking about how one might conceive of those conditions that builds on recent work, and then sketches the elements of a strategic contingency approach to the humanitarian assistance coordination dilemma. This analytical frame leads one to rethink assumptions concerning how best to conceptualize both the environment and the behavior of humanitarian organizations engaged in providing assistance in emergency situations and to suggest that theory building for this domain of study should now turn to a network-based and strategically contingent perspective for its foundation.