DEVELOPMENT OF AN OFF-LINE RAINFLOW COUNTING ALGORITHM WITH TEMPORAL PARAMETERS AND DATA REDUCTION

Rainflow counting methods convert a complex load time history into a set of load reversals for use in fatigue damage modeling. Rainflow counting methods were originally developed to assess fatigue damage associated with mechanical cycling where creep of the material under load was not considered to be a significant contributor to failure. However, creep is a significant factor in some cyclic loading cases such as solder interconnects under temperature cycling. In this case, fatigue life models require the dwell time to account for stress relaxation and creep. This study develops a new version of the multi-parameter rainflow counting algorithm that provides a range-based dwell time estimation for use with time-dependent fatigue damage models. To show the applicability, the method is used to calculate the life of solder joints under a complex thermal cycling regime and is verified by experimental testing. An additional algorithm is developed in this study to provide data reduction in the results of the rainflow counting. This algorithm uses a damage model and a statistical test to determine which of the resultant cycles are statistically insignificant to a given confidence level. This makes the resulting data file to be smaller, and for a simplified load history to be reconstructed.

Toward an understanding of the poor health status of Indigenous Australian men

The purpose of this study was to investigate perceptions of health and health behaviors among Indigenous Australian men. Using a participatory action research (PAR) framework, we conducted two focus groups and 40 individual semi-structured interviews with men between the ages of 18 and 35 years in each of three locations across Australia. We used the health beliefs model to provide a framework for the analyses. Participants recognized that their Indigenous status placed them in a vulnerable position with regard to health, and that there might be serious consequences of failing to follow a good diet and engage in appropriate exercise. However, they delineated a number of barriers to engaging in such health behaviors. These perceived barriers require addressing at a range of policy levels within government, with a focus on social structures and institutionalized discrimination, as well as unemployment, poverty, dispossession, and cultural oppression.

The role of food banks in addressing food insecurity: a systematic review

Food banks play a major role in the food aid sector by distributing donated and purchased groceries directly to food insecure families. The public health implications of food insecurity are significant, particularly as food insecurity has a higher prevalence among certain population groups. This review consolidates current knowledge about the function and efficacy of food banks to address food insecurity. A systematic review was conducted. Thirty-five publications were reviewed, of which 14 examined food security status, 13 analysed nutritional quality of food provided, and 24 considered clients' needs in relation to food bank use. This review found that while food banks have an important role to play in providing immediate solutions to severe food deprivation, they are limited in their capacity to improve overall food security outcomes due to the limited provision of nutrient-dense foods in insufficient amounts, especially from dairy, vegetables and fruits. Food banks have the potential to improve food security outcomes when operational resources are adequate, provisions of perishable food groups are available, and client needs are identified and addressed.

Measurement of positive irrational beliefs (positive cognitive illusions)

The role of positive irrational beliefs (positive cognitive illusions) in mental health has been debated over several decades. The measurement of such beliefs has usually been through inferential assessment, which has been heavily criticised. This paper sought to establish a measure for the direct assessment of such beliefs and to assess their relationship to subjective wellbeing (SWB). Over two studies this new measure was found to have a factor structure consistent with its design, assessing self-enhancing beliefs, beliefs rejecting imperfection, overly optimistic beliefs, and irrational beliefs of control. When combined, these beliefs account for 17.6 % of the variance with SWB. This is driven largely by a higher order factor, which demonstrates a positive relationship to SWB. However, individually the different types of irrational beliefs demonstrate a variety of relationships with SWB. It is therefore concluded that positive irrational beliefs, when directly assessed, provide a greater depth of information than they do when assessed inferentially.

Domains of faith impact: how “faith” is perceived to shape faith-based international development organisations

Increasing interest in faith-based international development organisations (FBOs) recently has improved understanding of these agencies. One reason for complex, often contradictory findings is the lack of frameworks analysing the interactions of worldviews on organisational structures, processes, and behaviours of agencies, and development outcomes. We utilise Lincoln's (2003. Holy Terrors: Thinking about Religion after September 11. Chicago: University of Chicago Press) four “domains of religion” to explore how the literature reports faith impacting the shape of development FBOs’ structures, behaviours, and outcomes. Literature suggests faith has a significant impact upon these agencies. We outline very specific similarities and differences, highlighting the importance of nuanced analysis of faith's role in FBOs. Further research is needed to build more evidence around these impacts of faith on FBOs

On Roland Boer’s Marxism and theology

This piece aims to provide a synoptic introduction to Boer’s claims in the five volumes of Marxism and Theology. Obviously, such an account must miss many important nuances across the host of critical readings Boer assembles, guided by his broadly Jamesonian manner of reading the texts with a view to their biblical and theological claims. Nevertheless, by aiming at a synoptic view of a truly compendious contribution to scholarship, it is hoped that the piece will provide assistance to readers, and encourage them to test their own intuitions and thoughts against the original texts. The final part of the article stands back from this ‘‘standing back’’: and asks questions concerning Boer’s treatments of biblical criticism, with and/or against theology; and concerning the role of what might be called (even despite Boer’s own protests) a kind of ‘‘secularised’’ Calvinism in Boer’s work and its interest in a post-Marxian politics of grace.

Socratic ironies: reading Hadot, reading Kierkegaard

This paper examines the seemingly unlikely rapport between the ‘Christian existentialist’, radically Protestant thinker, Søren Kierkegaard and French classicist and historian of philosophy, Pierre Hadot, famous for advocating a return to the ancient pagan sense of philosophy as a way of life. Despite decisive differences we stress in our concluding remarks, we argue that the conception of philosophy in Hadot as a way of life shares decisive features with Kierkegaard’s understanding of the true ‘religious’ life: as something demanding existential engagement from its proponent, as well as the learning or recitation of accepted doctrines. The mediating figure between the two authors, the paper agrees with Irina (2012), is Socrates and his famous irony. In order to appreciate Kierkegaard’s rapport with Hadot, then (and in contrast to Gregor, who has also treated the two figures) we first of all consider Hadot’s treatment of the enigmatic ‘old wise man’ who remains central to Kierkegaard’s entire authorship. (Part 1) However, to highlight Hadot’s Socratic proximity to Kierkegaard (in contrast to Irina), we set up Hadot’s Socrates against the contrasting portrait readers can find in John M. Cooper’s recent work on Socrates and philosophy as a way of life. Part II of the essay turns back from Hadot’s and Kierkegaard’s Socrates towards Hadot’s own work, and argues—again moving beyond both Gregor and Irina’s works on Hadot and Kierkegaard—that the shape of Hadot’s ‘authorship’, including his remarkably classical style, can be understood by way of Kierkegaard’s notion of indirect communication. In our concluding remarks, in the spirit of Kierkegaard, we pinpoint the fundamental difference between the two thinkers, arguing that for Hadot in contrast to Kierkegaard, a stress on existential commitment in no way speaks against the philosophical defence of a form of rational universalism. Reading Hadot via Kierkegaard allows us to appreciate Hadot’s novelty as attempting to ‘squaring the circle’ between an emphasis on subjectivity and, as it were, the subjective dimensions of philosophers’ pursuit of rational universality.

'What if you live on top of a bakery and you like cakes?'- Drug use and harm trajectories before, during and after the emergence of Silk Road

BACKGROUND: Cryptomarkets are digital platforms that use anonymising software (e.g. Tor) and cryptocurrencies (e.g. Bitcoin) to facilitate peer-to-peer (P2P) trade of goods and services. Their emergence has facilitated access to a wide range of high-quality psychoactive substances, according to surveys of users. In this paper, we ask the question 'How does changing access to drugs through cryptomarkets affect the drug use and harm trajectories of their users?'

METHODS: We conducted a digital ethnography spanning 2012-2014, a period that included the seizure of the original Silk Road marketplace and forum by law enforcement. Using encrypted online chat, we interviewed 17 people who reported using Silk Road to purchase illicit drugs. The interviews were in-depth and unstructured, and also involved the use of life history timelines to trace trajectories. Transcripts were analysed thematically using NVivo.

RESULTS: For some, Silk Road facilitated initiation into drug use or a return to drug use after cessation. Typically, participants reported experiencing a glut of drug consumption in their first months using Silk Road, described by one participant as akin to 'kids in a candy store'. There was evidence that very high availability reduced the need for drug hoarding which helped some respondents to moderate use and feel more in control of purchases made online. Cryptomarket access also appeared to affect solitary and social drug users differently. Most participants described using other cryptomarkets after the closure of Silk Road, albeit with less confidence.

CONCLUSION: In the context of high levels of drug access, supply and diversity occurring within a community regulated environment online, the impacts of cryptomarkets upon drug use trajectories are complex, often posing new challenges for self-control, yet not always leading to harmful outcomes. A major policy challenge is how to provide support for harm reduction in these highly volatile settings.

Intellectual freedom: everything is dangerous

This article looks at what intellectual freedom is; what threats it faces; which of these threats are external, which internal to inquiry; which external to the university, which shaped by it; and which of these are old, and which new in the context of the corporate university.

Lacanian psychoanalysis and critical theory

This piece gives an introduction to Lacanian psychoanalytic theory, and its adaptation by figures led by Jameson and Zizek for cultural and political criticism.

There is not just a war: recalling the therapeutic metaphor in western metaphilosophy

This paper offers a critical response to the claims of Sivin and Lloyd (2002) and Mattice (2014) to the effect that Greek and Roman philosophy was characterised by a predominance of combat metaphors. Drawing on Plato and Plutarch, as well as contemporary studies led by Nussbaum (1993), I argue that a host of different metaphors was demonstrably used in the Greek tradition to describe philosophy and its subjects, led by the therapeutic or medicinal metaphor of philosophy as ‘therapy of desire’ or of desiderative opinion. I propose that it was the sophists like Protagoras, at least as they are depicted by Plato, who sought to conceive of philosophising as a strategic, warlike activity. In conclusion, I reflect on the invisibility of the medicinal metaphor, outside of certain dedicated studies in the history of ideas, in contemporary thinking about Western philosophy and its past.

Fat talk and its relationship with body image disturbance

Although past studies have highlighted fat talk as relevant to body image disturbance, the majority of these have only investigated the link between fat talk and body esteem, to the exclusion of other body image constructs. One hundred and ninety-nine women completed an online survey measuring levels of appearance-based comparisons, body surveillance, thin ideal internalization, body esteem, and fat talk (FT-body concerns and FT-body comparisons). Results showed that fat talk made a significant contribution in explaining additional variance in body esteem above the other three body image factors, with FT-body concerns in particular making the highest unique contribution. Hierarchical regression analyses suggest that fat talk should be viewed as an independent psychosocial predictor of body esteem in both theoretical and therapeutic contexts. Future research should explore these relationships from a longitudinal perspective, and also clarify the nuances in the relationships by investigating the nature of women's everyday body image experiences.

Unauthorised disclosure of organisational information through social media : a policy perspective

The unauthorised disclosure of organisational information through social media has become an issue. This has resulted in the need for organisations to re-evaluate ways of minimising the risks of information loss and disclosure via social media. The implementation of social media use policies can inform employees’ social media behaviours and ultimately lead to the creation of an organisational culture of awareness. Although organisations may have a social media policy in place, the issue of unauthorised disclosure of organisational information has not been given due attention. Hence, a pilot study of content analysis was conducted to explore how organisations address the issues relating to the unauthorised disclosure of organisational information via their social media channels. The findings of this pilot study revealed some emergent themes that are important for addressing the issue of information disclosure by comparing five different sectors. These emergent themes could guide researchers and practitioners in understanding and informing the organisational use of social media technologies.