Noisy Winter: The DDT Controversy in the Years before Silent Spring

Abstract In this paper, we examine three unanticipated findings from a social constructionist analysis of popular media coverage of the pesticide DDT from the years 1944 to 1961. The first unanticipated finding was the early (1945) appearance of negative or cautionary claims in the media source examined, the New York Times. Second, while negative or cautionary claims about the pesticide did constitute a minority voice during this time period, it was nonetheless a persistent voice. The third unanticipated finding was the predominance of the U.S. Department of Agriculture, and the State Agricultural Experiment Stations among those claimsmakers initially cautioning potential users about unintended and potentially deleterious impacts. The concept of "routine monitoring mechanisms" is introduced to explain this third finding. We conclude by considering the potential impact of this coverage on the subsequent development of the controversy.     

A Case Study on the Informational Efficiency of Markets: The Market for Horse Racing in Australia

This paper describes a study of the informational efficiency of the thoroughbred horse racing market in Australia. It is based on the theory of stock market efficiency which explains the process by which information becomes reflected in share prices. In this paper, the theory is applied to the thoroughbred horse racing market to determine the predictive accuracy of alternative informative sources. The results obtained from the study are consistent with the underlying theory:(i) aggregated information (as reflected in a consensus of opinions) is a more accurate prediction of success than less information (as reflected in individual opinions), and;(ii) the most recent information (as reflected in race-time betting odds, known as starting prices) has greater predictive ability than less recent information (as reflected in an earlier consensus of opinions).The study examines predictive accuracy in a gambling context, but does not consider the profitability of alternative prediction processes.     

A simulation system for corporate planning

This paper describes the structure and use of a general purpose simulation package developed for the interactive construction of dynamic computer-based simulation models. The package consists of a system of computer programs written in the BASIC language for a Digital PDP 11/70 time-sharing computer.The framework upon which the package is based is essentially an amalgamation of the System Dynamics and Input-Output approaches to the modelling of complex organizations. Networks of levels and flows provide the basis for dynamic, modular representation, while matrix algebra features provide the basis for aggregational flexibility and the analysis of multi- product multi-process industrial systems.The package is designed to provide planning managers with the ability to construct flexible models, localized or ‘corporate’, financial or non-financial, without the need for any programming in the conventional sense. A flow diagram of the system to be modelled guides the model builder in responding to computer terminal prompts which determine the model structure as a set of programmed relationships. This in turn gives rise to a further series of prompts at the terminal for the entry of all data pertinent to the model. Model editing and computation then proceeds, with user interaction, if desired, for amendments, monitoring of computations, and report generation.Two specific applications of the package are discussed in the latter part of the paper, and sample output from runs of both of the resultant models is provided.     

Parental education, time in paid work and time with children: an Australian time-diary analysis

How does parental education affect time in the paid workforce and time with children? Potentially, the effects are contradictory. An economic perspective suggests higher education means a pull to the market. Human capital theory predicts that, because higher education improves earning capacity, educated women face higher opportunity costs if they forego wages, so will allocate more time to market work and less to unpaid domestic labour. But education may also exercise a pull to the home. Attitudes to child rearing are subject to strong social norms, and parents with higher levels of education may be particularly receptive to the current social ideal of attentive, sustained and intensive nurturing. Using data from the Australian Bureau of Statistics Time‐use Survey 1997, this study offers a snapshot of how these contradictory pulls play out in daily life. It finds that in Australia, households with university‐educated parents spend more daily time with children than other households in physical care and in developmental activities. Sex inequality in care time persists, but fathers with university education do contribute more time to care of children, including time alone with them, than other fathers. Mothers with university education allocate more daily time than other mothers to both childcare and to paid work.     

Issues of shared parenting of LGBTQ children and youth in foster care: preparing foster parents for new roles

Foster parents have increasingly assumed new and challenging roles during the past decade. Meeting the developmental, attachment, and grieving needs of children and youth in out of home care is challenging by itself, but can become even more difficult with the issues that arise when the child is lesbian, gay, bisexual, transgender, or questioning (LGBTQ). Preservice and in-service foster parent training programs can strengthen shared parenting skills by focusing on the universal critical issues of safety, well being, and permanence for children and youth in foster care. This article will focus on these skill areas: (1) sharing parenting to promote healthy growth and development of LGBTQ youth in foster care, (2) threats to safety of LGBTQ youth in foster care, and (3) general challenges and strategies for preparing foster parents of LGBTQ youth to build support systems.     

Exotic dancers in an awkward negotiation: Implications for affect control theory

We use affect control theory (ACT) to test the veracity of mathematically derived predictions that an exotic dancer will act in ways that are consistent with societal expectations for her “deviant” label. We also explore the strategies that exotic dancers use to maintain the definition of the situation. Our findings indicate that exotic dancers do not define their own identities as predicted. Our data also demonstrate that participants in our study were at least as likely to manage the identities of others as they were their own identities. We conclude our paper by discussing our interpretations of the data and the veracity of ACT.     

Suburban wildlife: Lessons,challenges, and opportunities

The United States, as well as most developed and many developing nations worldwide, is becoming increasingly urban and suburban.Although urban, suburban, and commercial development account for less than one percent to just over 20% of land use among states, 50–90% of the residents of those states can be classified as urban or suburban dwellers. The population of the U.S. as a whole has risen from being > 95% rural in the 1790s to about 80% urban-suburban today. With these changes in land use and demographic patterns come changes in values and attitudes; many urbanites and suburbanites view wildlife and nature differently than rural residents. These are among the challenges faced by wildlife biologists and natural resource managers in a rapidly urbanizing world. In 2003, we convened a symposium to discuss issues related to suburban wildlife. The papers presented in this special issue of Urban Ecosystems address the lessons learned from the early and recently rapidly expanding literature, the challenges we face today, and the opportunities that can help deal with what is one of the biggest challenges to conservation in a modernizing world.     

Gender,relationship stage,and sexual behavior: the importance of partner emotional investment within specific situations

This study examined the relationship of type of sexually instigating situation (partner behavior conveying emotional investment or not), relationship stage, and gender to self-reported likelihood of engaging in sexual behavior. Participants (200 female and 122 male college students) read scenarios describing partner behavior in eight hypothetical sexual situations. Five of the sexual situations were proposed to explicitly communicate a sense of emotional investment in the relationship, and three other scenarios were conceived as not explicitly conveying emotional investment. Emotional investment situations were hypothesized to influence likelihood ratings as a function of imagined relationship stage (dating or in a serious relationship), manipulated across participants. Situations not conveying investment were hypothesized to influence ratings as a function of both relationship stage and gender. In large part, hypotheses were confirmed. The few exceptions were consistent with other gender-role considerations related to trust and power.