The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters

The purpose of this study was to examine 1) wildfire fighters' ability to consume the prescribed fluid volume (1200 mL h-1), 2) the effect of fluid intake on plasma sodium and hydration, and 3) the effect of fluid intake on firefighters' heart rate, core temperature and activity during emergency suppression shifts. Methods: Thirty-four firefighters were divided into ad libitum (AD, n = 17) and prescribed (PR, n = 17) drinking groups. Results: PR drinkers did not meet the prescribed fluid target, yet consumed over double the volume of AD drinkers. No differences between groups in plasma sodium or hydration were noted. PR drinking resulted in lower core temperature between 2 and 6 h. This did not coincide with reduced cardiovascular strain, greater work activity or larger distances covered when compared to AD drinkers. Conclusion: Extra fluid consumption (above AD) did not improve firefighter activity or physiological function (though PR firefighters core temperature was lower earlier in their shift). Firefighter can self-regulate their fluid consumption behavior and work rate to leave the fireground euhydrated.

Multitasking, working memory and remembering intentions

Multitasking refers to the performance of a range of tasks that have to be completed within a limited time period. it differs from dual task paradigms in that tasks are performed not in parallel, but by interleaving, switching from one to the other. it differs also from task switching paradigms in that the time scale is very much longer, multiple different tasks are involved, and most tasks have a clear end point. Multitasking has been studied extensively with particular sets of experts such as in aviation and in the military, and impairments of multitasking performance have been studied in patients with frontal lobe lesions. Much less is known as to how multitasking is achieved in healthy adults who have not had specific training in the necessary skills. This paper will provide a brief review of research on everyday multitasking, and summarise the results of some recent experiments on simulated everyday tasks chosen to require advance and on-line planning, retrospective memory, prospective memory, and visual, spatial and verbal short-term memory.

Time, philosophy and chronopathologies

This essay is an elaboration on some central themes and arguments from my recent book, Chronopathologies: Time and Politics in Deleuze, Derrida, Phenomenology and Analytic Philosophy (Rowman and Littlefield 2012). There is hence an element of generality to this essay that the book itself is better able to justify. But a short programmatic piece has its own virtues, especially for those of us who are time poor (which is pretty much everyone in contemporary academia). Moreover, it adds a dimension to the above book by more explicitly situating it in relation to what is an emerging view in some recent scholarship (such as John McCumber, Len Lawlor, David Hoy, and before this Liz Grosz) that time is central to the identity of continental philosophy, as well as considering some of the work that in different ways contests this kind of interpretation of the identity of continental philosophy (e.g. Simon Glendinning, and, tacitly, Paul Redding). In continuing to side with the former over the latter, I will also develop my argument that time is one of the most significant factors in the divided house that I think ontemporary philosophy remains, and I conclude by offering a series of negative prescriptions regarding how we might better avoid particular chronopathologies, or time-sicknesses, that are endemic to these philosophical trajectories, and that are also present (to greater and lesser degrees) in the majority of individual philosophers standardly labeled analytic and continental. To the extent that such sicknesses are at least partly inevitable, akin to a transcendental illusion, this paper consists in a call to be more attentive to this tendency, and to the methodological, metaphilosophical, and ethico-political consequences that follow from them.

Transcendental arguments about other minds and intersubjectivity

This article describes some of the main arguments for the existence of other minds, and intersubjectivity more generally, that depend upon a transcendental justification. This means that our focus will be largely on ‘continental’ philosophy, not only because of the abiding interest in this tradition in thematising intersubjectivity, but also because transcendental reasoning is close to ubiquitous in continental philosophy. Neither point holds for analytic philosophy. As such, this essay will introduce some of the important contributions of Edmund Husserl, Martin Heidegger, Jean-Paul Sartre, Maurice Merleau-Ponty and Karl-Otto Apel, all of whom use transcendental reasoning as a key part of their analyses of intersubjectivity, and we also consider the work of Peter Strawson who does likewise in the analytic tradition.