A model of melt pond evolution on sea ice

A one-dimensional, thermodynamic, and radiative model of a melt pond on sea ice is presented that explicitly treats the melt pond as an extra phase. A two-stream radiation model, which allows albedo to be determined from bulk optical properties, and a parameterization of the summertime evolution of optical properties, is used. Heat transport within the sea ice is described using an equation describing heat transport in a mushy layer of a binary alloy (salt water). The model is tested by comparison of numerical simulations with SHEBA data and previous modeling. The presence of melt ponds on the sea ice surface is demonstrated to have a significant effect on the heat and mass balance. Sensitivity tests indicate that the maximum melt pond depth is highly sensitive to optical parameters and drainage. INDEX TERMS: 4207 Oceanography: General: Arctic and Antarctic oceanography; 4255 Oceanography: General: Numerical modeling; 4299 Oceanography: General: General or miscellaneous; KEYWORDS: sea ice, melt pond, albedo, Arctic Ocean, radiation model, thermodynami

Taijiquan the 'Taiji World' way: Towards a cosmopolitan vision of ecology.

In this article, we present a case study analysis of data gathered on the practice of the art of Taijiquan (Tai Chi Chuan) in one UK context. Our interest in looking at this physical culture was in exploring if/how physical cultures of shared embodied experience and practice may help “sow the seeds of environmental awareness”. In so doing, we illustrate certain affinities between this interpretation of the art and Beck’s idea of a “cosmopolitan vision of ecology”. We present an analysis of documentary and interview data of one English Taijiquan organisation and how it currently promotes the idea of interconnectedness, wellbeing and an alternative meta-narrative for living through the practice of Taijiquan. We conclude that, while further research is needed, there is evidence that a cosmopolitan vision for ecology is emerging in physical cultures such as Taijiquan

An examination of business occupier relocation decision making : distinguishing small and large firm behaviour

This paper explores how business occupiers decide whether and where to relocate. It captures the experience and behaviour of a range of sizes and types of business occupier and subjects their decision-making processes to detailed scrutiny. A linear three-stage decision model is used to sequence and structure interviews with individuals who have intimate involvement with the relocation of 28 firms and organizations in Tyne and Wear, in the north-east of England. The 'constant comparative' method is used to analyse the interview data, from which emerges 18 key concepts, comprising 51 characteristic components. Using an axial approach, these are organized into 10 cross-cutting themes that represent the main areas of consideration or influence on the thinking of the people involved in determining whether a firm or organization should relocate and, if so, where to. The resulting analysis finds that organizations adopt varying degrees of sophistication when making relocation decisions; small firms are more inclined to make decisions based on constrained information; larger organizations adopt a more complex approach. Regardless of firm size, key individuals exert considerable influence over the decision-making process and its outcome

EOF analysis of three records of sea-ice concentration spanning the last 30 years

Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same

A Golf Programme for People with Severe and Enduring Mental Health Problems

This article reports a pioneering golf programme for people with severe and enduring mental health problems. Following a discussion of the problems and possibilities of golf as a form of physical activity for this group, we outline the structure, organisation, and ethos of the golf programme. Through an analysis of qualitative case study data collected during the programme, we discuss the response to the programme from service users and mental health professionals. We conclude by highlighting aspects of the programme which were critical to its success and offering suggestions for further initiatives in this area

The physical activity experiences of men with serious mental illness: Three short stories

Objectives: Although a considerable amount of research has explored the effects of physical activity on mental health, the voices of people with mental illness have been largely excluded from published reports. Through this study we aim to foreground service users' voices in order to shed light on the personal and subjective nature of the relationship between physical activity and serious mental illness (SMI). Methods: An interpretive case study approach was used to explore in depth the physical activity experiences of three men with SMI. Creative analytic practice was used to write three creative non-fictions which, as first-person narratives, foreground the participants' voices. Results: We present three short stories in an effort to communicate participants' personal and subjective experiences of physical activity in an accessible, engaging, and evocative manner. We hope to: (i) provide potentially motivating physical activity success stories for others who live with SMI; (ii) increase awareness among mental health professionals of the possibilities of physical activity; and (iii) provide an empathetic understanding of possibilities and problems of living with SMI which may help challenge the stigma surrounding mental illness. Conclusions: For us, the stories communicate the diversity and difference inherent in the ways men with SMI experience physical activity. We reflect on how the short story form allows these differences to be preserved and respected. We resist making further interpretations of the stories preferring instead to encourage the reader to form her or his own conclusions. © 2007 Elsevier Ltd. All rights reserved

Sexual Desire Trajectories: Heterosexual Individuals\u27 Perceptions of the State and Trait Characteristics of Desire

Significant theoretical and empirical attention has aimed to classify sexual desire in a way that accounts for its complexities. A recent question to arise from this discussion is whether desire is best conceptualized as a state or a trait. Limited data examine patterns of desire spanning several years, and most data emanate from cross-sectional or short-term follow-up studies. Long-term accounts of desire level variability remain a gap in the literature, as does research inquiring directly about the question of trait desire. Thirteen heterosexual women and ten heterosexual men, ages 40-63, participated in a semi-structured interview focusing on desire level and variability across the lifespan, causal factors for desire changes, and perception of trait and state-level desire. Men and women also provided a graphic representation of desire level across their lifetime. The sample of women in this study were generally desirous, and content with their desire level. What emerged from narratives of their desire trajectories was a model of desire development, beginning in adolescence and evolving through middle adulthood, composed of three relatively distinct stages. In their adolescent years, desire was not experienced as its own entity with a connection to their own wants. Instead, what was salient during this time was sexual activity driven by a yearning for validation or by a pressure to fulfill societal or partner expectations, often followed by feelings of shame for having been sexual. Then, as women progressed through their adult lives, they accumulated personal and relational experiences that clarified exactly what and how they desire. Finally, at the time of the interviews they appeared to have defined what desire is to them, to have developed their own expectations for sex and relationships, and to place high value on enacting their desire in line with these expectations. The majority of women in this sample viewed themselves as having a trait level of desire, with fluctuations seen as circumstantial deviations from this trait level. Men’s trajectories did not reveal a developmental model. They largely viewed their desire level as a trait and had a clear sense of desire from late adolescence or early adulthood. In most cases, there were two or three key causal factors that influenced men’s trajectories, falling broadly into categories of Individual (self-esteem, well-being, stress, physical health, and aging) and Relational (positive relationship characteristics, and novelty and stagnation). Results support the characterization of desire level as a trait characteristic in some men and women. Interestingly, the way in which women determine their trait level of desire, given potentially significant variability across time, appears influenced by satisfaction with desire level. The graphic representations of lifespan desire level indicate a distinction between causal factors that influence the direction of the overall trajectory, versus those that were not sufficiently significant to factor into the trajectory. Results highlight the importance of intra-individual factors in desire development

A level playing ‘field’? A Bourdieusian analysis of the career aspirations of further education students on sports courses

There is currently a distinct dearth of research into how sports students’ career aspirations are formed during their post-compulsory education. This article, based on an ethnographic study of sport students in tertiary education, draws on data collected from two first-year cohorts (n = 34) on two different courses at a further education college in England. The study draws on ethnographic observations, and semi-structured group interviews, to examine in-depth the contrasting occupational perspectives emergent within these two groups of mainly working-class students, and how specific cultural practices affect students’ career aspirations. Utilising a Bourdieusian framework, the paper analyses the internalised, often latent cultural practices that impact upon these students’ diverse career aspirations. The hitherto under-researched dimension of inter-habitus interaction and also the application of doxa are outlined. The article reveals how the two student cohorts are situated within a complex field of relations, where struggles for legitimisation, academic accomplishment and numerous forms of lucrative capital become habituated. The study offers salient Bourdieusian-inspired insights into the career aspirations of these predominantly working-class students and the ways in which certain educational practices contribute to the production and reproduction of class inequalities