According to Heidegger's Being and Time, social relations are constitutive of the core features of human agency. On this view, which I call a 'strong conception' of sociality, the core features of human agency cannot obtain in an individual subject independently of social relations to others. I explain the strong conception of sociality captured by Heidegger's underdeveloped notion of 'being-with' by reconstructing Heidegger's critique of the 'weak conception' of sociality characteristic of Kant's theory of agency. According to a weak conception, sociality is a mere aggregation of individual subjects and the core features of human agency are built into each individual mind. The weak conception of sociality remains today widely taken for granted. I show that Christine Korsgaard, one of the most creative contemporary appropriators of Kant, operates with a weak conception of sociality and that this produces a problematic explanatory deficiency in her view: she is unable to explain the peculiar motivational efficacy of shared social norms. Heidegger's view is tailor made to explain this phenomenon. I end by sketching how Heidegger provides a social explanation of a major systematic concern animating Korsgaard, the concern with the importance of individual autonomy and answerability in human life.

In this paper, I critically examine Dan Zahavi's multidimensional account of the self and show how the distinction he makes among “pre‐reflective minimal,” “interpersonal,” and “normative” dimensions of selfhood needs to be refined in order to accommodate what I call “pre‐reflective self‐understanding.” The latter is a normative dimension of selfhood manifest not in reflection and deliberation, but in the habits and style of a person's pre‐reflective absorption in the world. After reviewing Zahavi's multidimensional account and revealing this gap in his explanatory taxonomy, I draw upon Heidegger, Merleau‐Ponty, and Frankfurt in order to sketch an account of pre‐reflective self‐understanding. I end by raising an objection to Zahavi's claim for the primitive and foundational status of pre‐reflective self‐awareness. To carve off self‐awareness from the self's practical immersion in a situation where things and possibilities already matter and draw one to act is to distort the phenomena. A more careful phenomenology of pre‐reflective action shows that pre‐reflective self‐awareness and pre‐reflective self‐understanding are co‐constitutive, both mutually for each other and jointly for everyday experience.

RÉSUMÉThe use of decision threshold and detection limit concepts often poses many problems for metrologists in biological analysis laboratories in charge of the management of nuclear plant workers. These problems are frequently related to the understanding of a normalized formula or to the possible choice between several formulas whose numerical results are exceptionally significantly different. The true problems are in fact firstly the significance and the interpretation of these statistical tests, and secondly the numerical values used in these tests. Among those, the background estimate remains the essential and the most delicate value to define. The aim of this first article is to go back to the initial bases of the concepts of the decision threshold and detection limit. In the first step, a distinction will be made between the methods of decision threshold determination based upon definition of a priori first species error risks (i.e. before sample measurement) and the a posteriori interpretation of the sample Article publié par EDP Sciences A. VIVIER et al. 322 RADIOPROTECTION -VOL. 45 -N° 3 (2010) measurement result. In the second step, some examples of decision threshold and detection limit optimization in gamma spectrometry will be described. These examples will show that the essential parameter is the optimization of the estimation of background values, which requires the control of measurement rather than the management of statistical tools.

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In this paper, I address some puzzles about Frege's conception of how we "grasp" thoughts. I focus on an enigmatic passage that appears near the end of Frege's great essay "The Thought." In this passage Frege refers to a "non-sensible something" without which "everyone would remain shut up in his inner world." I consider and criticize Wolfgang Malzkorn's interpretation of the passage. According to Malzkorn, Frege's view is that ideas [Vorstellungen] are the means by which we grasp thoughts. My counter-proposal is that language enables us to grasp thoughts (ideas are merely their baggage or "trappings," as Frege puts it). One significant consequence of my interpretation is that it helps challenge the standard reading of Frege according to which he is a metaphysical platonist about thoughts. My interpretation thus provides support for the deflationary, anti-ontological reading spelled out by readers like Thomas Ricketts and Wolfgang Carl. As Ricketts puts it, Frege's distinction between the objective and the subjective, rather than being an ontological doctrine, "lodges in the contrast between asserting something and giving vent to a feeling."