109 research outputs found
Information flow in a kinetic ising model peaks in the disordered phase
There is growing evidence that for a range of dynamical systems featuring complex interactions between large ensembles of interacting elements, mutual information peaks at order-disorder phase transitions. We conjecture that, by contrast, information flow in such systems will generally peak strictly on the disordered side of a phase transition. This conjecture is verified for a ferromagnetic 2D lattice Ising model with Glauber dynamics and a transfer entropy-based measure of systemwide information flow. Implications of the conjecture are considered, in particular, that for a complex dynamical system in the process of transitioning from disordered to ordered dynamics (a mechanism implicated, for example, in financial market crashes and the onset of some types of epileptic seizures); information dynamics may be able to predict an imminent transition
A discursive psychology analysis of emotional support for men with colorectal cancer
Recent research into both masculinity and health, and the provision of social support for people with cancer has focussed upon the variations that may underlie broad assumptions about masculine health behaviour. The research reported here pursues this interest in variation by addressing the discursive properties of talk about emotional support, by men with colorectal cancer - an understudied group in the social support and cancer literature. Semi-structured interviews were conducted with eight men with colorectal cancer, and the transcripts analysed using an intensive discursive psychology approach. From this analysis two contrasting approaches to this group of menâs framing of emotional support in the context of cancer are described. First, talk about cancer was positioned as incompatible with preferred masculine identities. Second, social contact that affirms personal relationships was given value, subject to constraints arising from discourses concerning appropriate emotional expression. These results are discussed with reference to both the extant research literature on masculinity and health, and their clinical implications, particularly the advice on social support given to older male cancer patients, their families and friends
Classifying and systemising uncertainty and instability : a dynamic social network approach to risk
The narrow and probabilistic, ergodic approach to risk, to date, has potentially not fully understood or incorporated the dynamical synthetic ecology in which our systems actually operate. A dynamic synthetic ecology made even more complex and potentially uncertain and unstable through the degrees of socio-info/techno connectivity we now enjoy compared to 30 years ago. This means our decisions and solutions are often deeply entangled in ways that it is almost impossible to measure. Yet Risk Management continues to call for measured certainty based upon a potentially increasingly narrow and frozen understanding of Risk â usually âtakenâ at the unit / operational but not the systems level. In this paper, we look at uncertainty and instability as being connected but not necessarily synonymous indicators of risk. In terms of instability, we look to classify different types of instability that a system may face including, for example, technical risks introduced through disruptive technologies
An interview based study of pioneering experiences in teaching and learning Complex Systems in Higher Education
Due to the interdisciplinary nature of complex systems as a field, students
studying complex systems at University level have diverse disciplinary
backgrounds. This brings challenges (e.g. wide range of computer programming
skills) but also opportunities (e.g. facilitating interdisciplinary
interactions and projects) for the classroom. However, there is little
published regarding how these challenges and opportunities are handled in
teaching and learning Complex Systems as an explicit subject in higher
education, and how this differs in comparison to other subject areas. We seek
to explore these particular challenges and opportunities via an interview-based
study of pioneering teachers and learners (conducted amongst the authors)
regarding their experiences. We compare and contrast those experiences, and
analyse them with respect to the educational literature. Our discussions
explored: approaches to curriculum design, how theories/models/frameworks of
teaching and learning informed decisions and experience, how diversity in
student backgrounds was addressed, and assessment task design. We found a
striking level of commonality in the issues expressed as well as the strategies
to handle them, for example a significant focus on problem-based learning, and
the use of major student-led creative projects for both achieving and assessing
learning outcomes.Comment: 16 page
The Passing of Print
This paper argues that ephemera is a key instrument of cultural memory, marking the things intended to be forgotten. This important role means that when ephemera survives, whether accidentally or deliberately, it does so despite itself. These survivals, because they evoke all those other objects that have necessarily been forgotten, can be described as uncanny. The paper is divided into three main sections. The first situates ephemera within an uncanny economy of memory and forgetting. The second focuses on ephemera at a particular historical moment, the industrialization of print in the nineteenth century. This section considers the liminal place of newspapers and periodicals in this period, positioned as both provisional media for information as well as objects of record. The third section introduces a new configuration of technologies â scanners, computers, hard disks, monitors, the various connections between them â and considers the conditions under which born-digital ephemera can linger and return. Through this analysis, the paper concludes by considering digital technologies as an apparatus of memory, setting out what is required if we are not to be doubly haunted by the printed ephemera within the digital archive
Emotion, Meaning, and Appraisal Theory
According to psychological emotion theories referred to as appraisal
theory, emotions are caused by appraisals (evaluative judgments). Borrowing a term from Jan Smedslund, it is the contention of this article that psychological appraisal theory is âpseudoempiricalâ (i.e., misleadingly or incorrectly empirical). In the article I outline what makes some scientific psychology âpseudoempirical,â distinguish my view on this from Jan Smedslundâs, and then go on to show why paying heed to the ordinary meanings of emotion terms is relevant to psychology, and how appraisal theory is methodologically off the mark by
employing experiments, questionnaires, and the like, to investigate what follows from the ordinary meanings of words. The overarching argument of the article is that the scientific research program of appraisal theory is fundamentally misguided and that a more philosophical approach is needed to address the kinds of questions it seeks to answer
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