Using the Summed Rank Cusum for monitoring environmental data from industrial processes

Environmental issues have become a hot topic recently, especially those surrounding industrial outputs. Effluents, emissions, outflows, by-products, waste materials, product de-commissioning, land reclamation and energy consumption are all the subject of monitoring, either under new legislation or through economic necessity. Many types of environmental data are often difficult to understand or measure because of their unusual distribution of values however. Standard methods of monitoring these data types often fail or are unwieldy. The scarcity of events, small volume measurements and the unusual time scales sometimes involved add to the complexity of the task. One recently developed monitoring technique is the Summed Rank Cusum (SRC) that applies non-parametric methods to a standard chart. The SRC can be used diagnostically and this paper describes the application of this new tool to three data sets, each derived from a different problem area. These are measuring industrial effluent, assessing the levels of potentially harmful proteins produced by an industrial process and industrial land reclamation in the face of harmful waste materials. The use of the SRC to spot change points in time retrospectively is described. The paper also shows the use of SRC in the significant-difference testing mode, which is applied via the use of spreadsheets. Links to other similar methods described in the literature are given and formulae describing the statistical nature of the transformation are shown. These practical demonstrations illustrate that the graphical interpretation of the method appears to help considerably in practice when trying to find time-series change points. The charts are an effective graphical retrospective monitoring technique when dealing with non-normal data. The method is easy to apply and may help considerably in dealing with environmental data in the industrial setting when standard methods are not appropriate. Further work is continuing on the more theoretical aspects of the method.     

Estimability,testability, and connectedness in the cell means model

This article discusses the conocepts of estimation of parameters and tests of linear hyp hypotheses in the fixed effects (ANOVA) model with some zero cell frequencies. The concept of connected experiments is generalized ot he cel1-means model and relatedtotheest imation of and test of hy pothe sesa bout the cell means. A simple test for connectedness is developed as a n atur alre sult of thea nalysis of the constrai nedcell means model. The a nalysis of unconnected experimentsisbriefly discussed. Examples are presented toillustrate the ideas.     

Social workers' attitudes towards family group conferences in Sweden and the UK

The New Zealand family group conference (FGC) approach to decision making in child welfare and protection has attracted strong interest among policy makers and professionals all over the world. While New Zealand’s legislation makes use of FGCs more or less mandatory in child protection, other countries permit social workers to refer families to an FGC at their own discretion. Knowledge about social workers’ attitudes towards the model is thus paramount if we want to understand implementation and evaluations of FGCs outside New Zealand. This study looks at attitudes towards and actual referrals to FGCs amongst 219 social workers from 18 local authorities in Sweden and the UK. Results reveal an overwhelmingly positive attitude towards FGCs in both countries. Given these attitudes it was striking that only 42% of the social workers had initiated at least one FGC over an 18‐month period. The number of implemented FGCs was almost exactly the same in Sweden and the UK, after adjusting for time and number of social workers. Possible explanations for this paradox are discussed, using data from the survey and child welfare literature.     

Perceptions of Board Chair Leadership Effectiveness in Nonprofit and Voluntary Sector Organizations

This article reports on the results of a multi-year, multi-phase international quantitative research investigation into perceptions of board chair leadership impact in nonprofit and voluntary organizations in Canada, the United States, and the United Kingdom. Specifically, this research tests four hypotheses and a hypothesized model derived from theoretical perspectives on chair leadership effectiveness that emerged when the results of a prior grounded theory research investigation were reviewed ex post facto through the lens of leadership literature (see Harrison and Murray, NPML, accepted). The purpose of this phase of the research is to determine: (a) whether there is empirical support for the theoretical perspectives advanced; and (b) which perspective offers the best explanation for why some board chairs are perceived as having more impact in the role than others. The results suggest chair leadership effectiveness is best understood as a multi-dimensional theoretical construct explained by more than one leadership theory. The article concludes with a discussion of the findings and directions for further research.     

Nightlife Girls: Envy,Theatre, and Encounters with Men and Women

This article explores how envy influences affective performance in the service industry. Utilizing the first‐person accounts of 12 women working in one Manhattan bar, it examines how the experiences these women have with male and female customers are differently intersected by expectations for gendered performance. It further explores how envy — as the emotion most prompted in the servers in the face of these expectations — can in response be harnessed as a force for their critical agency. Seeing envy as both an antagonizer and central defence mechanism, the paper goes on to dissect the various strategies employed by the serving women to both adopt the differing embodiments of affective gender performance expected by their male and female customers, and protect themselves from the emotional damage that is risked in adopting such externally dictated subjectivities.     

Windows to the Soul? Deliberate Eye Contact as a Cue to Deceit

Although people overwhelmingly believe that liars avoid eye contact, meta-analyses of deception literature have shown a non-significant relationship between gaze and deception. In the present experiment we measured eye movements in an innovative way. We coded the extent to which interviewees deliberately made eye contact with the interviewer. Liars take their credibility less for granted than truth tellers. They therefore may have a greater desire to be convincing and hence more inclined to monitor the interviewer to determine whether they seem to be being believed. We therefore hypothesized that liars would give more appearance of deliberately making eye contact than truth tellers (a relationship which opposes the stereotypical belief that liars look away). A total of 338 passengers at an international airport told the truth or lied about their forthcoming trip. As well as the deliberate eye contact variable, we coded the amount of time the interviewees looked away from the interviewer (e.g., gaze aversion), which is typically examined in deception research. Liars displayed more deliberate eye contact than truth tellers, whereas the amount of gaze aversion did not differ between truth tellers and liars.     

Towards a sociology of transgendered bodies

The articulation of a generic social process of 'body femaling' presented in Ekins (1993) and elaborated in Ekins (1997) is further developed in this article to provide a conceptual framework for a sociology of trans-gendered bodies. Transgendering refers both to the idea of moving across (transferring) from one pre-existing gender category to another (either temporarily or permanently), and to the idea of transcending or living 'beyond gender' altogether. Following Plummer's (1995) work on sexual stories, we distinguish a number of contemporary transgendering body stories which we consider in terms of four major modes or styles of body transgendering: those we identify as 'migrating', 'oscillating', 'erasing' and 'transcending'. We give illustrative examples of each mode with reference to the binary male/female divide, the interrelations between sex, sexuality and gender, and the interrelations between the four main sub-processes of transgendering, which we identify as 'substituting', 'concealing', 'implying' and 'redefining'.     

MENTAL ILLNESS AND THE DEMAND FOR ALCOHOL, COCAINE, AND CIGARETTES

This article estimates the effect of mental illness on demand for addictive substances, allowing for structural endogeneity and simultaneity between mental illness and addictive consumption. Results show that individuals with a history of mental illness are 26% more likely to consume alcohol, 66% more likely to consume cocaine, and 89% more likely to consume cigarettes. This high-participation group is also price-responsive, although their price elasticities differ somewhat from those without mental illness. The results provide added justification for higher taxes and supply reduction activities. Furthermore, subsidizing the treatment of mental illness can reduce addictive consumption.(JEL I1 )