An Empirical Agent‐Based Model to Simulate the Adoption of Water Reuse Using the Social Amplification of Risk Framework

Water reuse can serve as a sustainable alternative water source for urban areas. However, the successful implementation of large‐scale water reuse projects depends on community acceptance. Because of the negative perceptions that are traditionally associated with reclaimed water, water reuse is often not considered in the development of urban water management plans. This study develops a simulation model for understanding community opinion dynamics surrounding the issue of water reuse, and how individual perceptions evolve within that context, which can help in the planning and decision‐making process. Based on the social amplification of risk framework, our agent‐based model simulates consumer perceptions, discussion patterns, and their adoption or rejection of water reuse. The model is based on the “risk publics” model, an empirical approach that uses the concept of belief clusters to explain the adoption of new technology. Each household is represented as an agent, and parameters that define their behavior and attributes are defined from survey data. Community‐level parameters—including social groups, relationships, and communication variables, also from survey data—are encoded to simulate the social processes that influence community opinion. The model demonstrates its capabilities to simulate opinion dynamics and consumer adoption of water reuse. In addition, based on empirical data, the model is applied to investigate water reuse behavior in different regions of the United States. Importantly, our results reveal that public opinion dynamics emerge differently based on membership in opinion clusters, frequency of discussion, and the structure of social networks.     

Vulnerability of ten major Nordic cities to potential tree losses caused by longhorned beetles

Urban Ecosystems - Urban forest and urban trees are currently facing several challenges arising from a changing climate, complex inner-city environments and severe threats of pathogen and insect...     

Contentious connective action: a new kind of life-political association for problematizing how expert systems operate

Neoliberalism and populism both challenge the idea that democratic politics is of and by ‘the people.’ Neoliberalism suggests technocracy as the way ahead for nudging laypeople to do the right things. Populism appeals to the morality of an exceptional leader required for tumbling ‘the system’ and make the home of ‘We the People’ whole again. Both positions consider laypeople like clay to be formed in their own image. The logic of contentious connective action is a direct response to this political degradation of the layactor. Without laypeople being able chronically to problematize how things are done by expert systems, there can be no real democracy. Hence, it is about time we bring the lifeworld with its capable and knowledgeable laypeople back into the fold. Technological development has made it possible for the lifeworld to attain global and not just local significance. Its spontaneous activities in local time-space can now connect globally, enabling worldwide demonstrations in the name of ‘we the 99%.’     

Improving evidence-based social work practice with youths exhibiting conduct problems through structured assessment

A key task in evidence-based case management of youth is the assessment of research-based risk and protective factors. In the present study we compare assessments of social workers using a structured assessment instrument with assessments of social workers not using such an instrument. Assessments of the exact same case—a vignette about a 14-year-old boy—conducted by 30 social workers using a structured assessment instrument and 30 social workers not using such an instrument were compared. The 60 assessments were also rated by independent researchers and senior social services managers, blind to whether an instrument had been used in the assessments or not. As hypothesized, using a structured assessment instrument resulted in the identification of a greater number of research-based risk and protective factors, and the assessments were rated as better in terms of general adequacy, quality, accuracy and potential treatment effectiveness, than when an instrument was not used. The present study demonstrates that social workers’ assessments of youth become more evidence-based, adequate and potentially more treatment effective when a structured assessment instrument is used as compared to when it is not.     

Value of Statistical Life and Cause of Accident: A Choice Experiment

The purpose of this study is to compare the value of statistical life (VSL) estimates for traffic, drowning, and fire accidents. Using a choice experiment in a mail survey of 5,000 Swedish respondents we estimated the willingness to pay for risk reductions in the three accidents. In the experiment respondents were asked a series of questions, whether they would choose risk reducing investments where type of accident, cost of the investment, the risk reduction acquired, and the baseline risk varied between questions. The VSLs for fire and drowning accidents were found to be about 1/3 lower than that for traffic accidents. Although respondents worry more about traffic accidents, this alone cannot explain the difference in VSL estimates. The difference between fire and drowning accidents was not found to be statistically significant.     

Using continuation-ratio logits to analyze the variation of the age composition of fish catches

Major sources of information for the estimation of the size of the fish stocks and the rate of their exploitation are samples from which the age composition of catches may be determined. However, the age composition in the catches often varies as a result of several factors. Stratification of the sampling is desirable, because it leads to better estimates of the age composition, and the corresponding variances and covariances. The analysis is impeded by the fact that the response is ordered categorical. This paper introduces an easily applicable method to analyze such data. The method combines continuation-ratio logits and the theory for generalized linear mixed models. Continuation-ratio logits are designed for ordered multinomial response and have the feature that the associated log-likelihood splits into separate terms for each category levels. Thus, generalized linear mixed models can be applied separately to each level of the logits. The method is illustrated by the analysis of age-composition data collected from the Danish sandeel fishery in the North Sea in 1993. The significance of possible sources of variation is evaluated, and formulae for estimating the proportions of each age group and their variance-covariance matrix are derived.     

Keeping the family balance – adult daughters’ experiences of roles and strategies when supporting caring fathers

The Scandinavian countries represent a progressive approach to gender equality and transitions of traditional gender roles but little attention has been paid to gender equality in old age and how normative constructions of gender intersect in the lives of family carers. The aim of this study was to understand how adult daughters experience their roles and strategies when supporting fathers caring for an ill mother. A sample of eight daughters shared their experiences through in-depth interviews. The findings show that the daughters provide substantial and crucial effort and are intimately involved in the caring for their father and the sole contributors towards the emotional support of their fathers. They tend to devote a lot of energy towards picturing their family as ‘normal’ in terms of the family members adopting traditional roles and activities inside as well as outside the family context. In conclusion, the lack of understanding about gender as a ‘norm producer’ is something that needs to be further elaborated upon in order for professionals to encounter norm-breaking behaviours. The daughters’ position as family carers is often assumed and taken for granted since the intersecting structures that impact on the situations of the daughters are largely invisible.     

Summerhouse Dialogues between Mobilier and Immobilier

Abstract

Addressing processes of cultural memory and mental appropriation in leisure architecture, this study relies on the fact that, in Denmark, summerhouses are often sold with furniture and objects representing the former owners and their ways of life. The theoretical starting point is formed by a discussion of Gaston Bachelard’s notion of “childhood home.” A menaced phenomenon in today’s urbanized reality, the childhood home and its mental values may indirectly be cultivated and reinterpreted by way of summerhouses. Buying a partly furnished summerhouse involves a joint encounter with immobilier (real estate) and mobilier (movables). In this way, a dialogue between the actual residents and a larger cultural history comes about. Built 1960/1971, the summerhouse studied here belongs to the author and his family. Archival and photographic experiments carried out after the acquisition in 1998 support reflections on space and life, now and in the previous history of the house.