Acting Intuition into Sense: How Film Crews Make Sense with Embodied Ways of Knowing

This study contributes to a holistic understanding of sensemaking by going beyond the mind–body dualism. To do so, we focus analytically on a phenomenon that operates at the nexus of mind and body: intuition. By observing four film crews, we unpack how people act their intuition into sense – that is, how they transform, through action, an initial sense (intuition) that is tacit, intimate, and complex into one that is publicly displayed, simpler, and ordered (i.e., a developed sense). Our model identifies two sensemaking trajectories, each of which involves several bodily actions (e.g., displaying feelings, working hands-on, speaking assertively). These actions enable intuition to express a facet of itself and acquire new properties. This study makes three important contributions. First, it develops the holistic-relational character of sensemaking by locating it in the relations among multiple loci (cognition, language, body, and materiality) rather than in each one disjunctively. Second, it theorizes embodied sensemaking as a transformative process entailing a rich repertoire of bodily actions. Third, it extends sensemaking research by attending to the physicality and materiality of language in embodied sensemaking

Loneliness and Social Internet Use: Pathways to Reconnection in a Digital World?

With the rise of online social networking, social relationships are increasingly developed and maintained in a digital domain. Drawing conclusions about the impact of the digital world on loneliness is difficult because there are contradictory findings, and cross-sectional studies dominate the literature, making causation difficult to establish. In this review, we present our theoretical model and propose that there is a bidirectional and dynamic relationship between loneliness and social Internet use. When the Internet is used as a way station on the route to enhancing existing relationships and forging new social connections, it is a useful tool for reducing loneliness. But when social technologies are used to escape the social world and withdraw from the “social pain” of interaction, feelings of loneliness are increased. We propose that loneliness is also a determinant of how people interact with the digital world. Lonely people express a preference for using the Internet for social interaction and are more likely to use the Internet in a way that displaces time spent in offline social activities. This suggests that lonely people may need support with their social Internet use so that they employ it in a way that enhances existing friendships and/or to forge new ones

Application de l'analyse isotopique par spectrométrie de masse et sonde ionique de l'oxygène des émeraudes naturelles

International audienceSimple and non-destructible methodologies for the authentication of gems like emeralds are generally not efficient enough for confirming geographical and geological origins [1]. This paper deals with the use of isotopic methodologies for emeralds authentication. An isotope ratio mass spectrometer coupled with an ionic probe allows to measure 18O/16O ratios from oxygen which is the main constitutive element of these gems [2,3]. The isotopic study of 62 different deposits allowed to draw up the map of oxygen isotopic ratios and to identify the origin of most of the high-grade emeralds marketed all over the world

Exploring Dual-Frequency Sub-Doppler Spectroscopy for a Cs Microcell-Based Optical Frequency Reference

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Staircase Dynamics of a Photonic Microwave Oscillator Based on a Laser Diode with Delayed Optoelectronic Feedback

International audienceA laser diode subjected to optoelectronic feedback in which some light is converted to photocurrent that is fed back into the laser injection terminals can display periodic oscillations in its optical intensity. We demonstrate experimental and numerical evidence that, as the feedback level is varied, a step-wise change in the relaxation oscillation frequency manifests itself in the output optical intensity. These transitions in the dynamics can either correspond to an abrupt jump between two limit cycles, associated with a subcritical torus bifurcation of a limit cycle, or to a progressive switching mediated by an intermediate quasiperiodic state. Finally, when ramping the feedback level down, hysteresis is observed in the sequence of switching events between the limit cycles. Such devices are of interest for photonic microwave sources for wavelength-division multiplexed radio-over-fiber systems

The Critical Decision Vortex: Lessons From the Emergency Room

The dominant model of decision making, rational decision making, is increasingly challenged by research on intuitive decision making and emotion. This article contributes to the debate by articulating a model of how rational decision making, intuitive decision making, and emotion influence each other: the critical decision vortex. The critical decision vortex emerges from a discussion between an emergency room (ER) doctor and a management scholar. The experience of the doctor diagnosing and treating patients in the ER provides the background for a reflection on decision making in critical conditions. One of the main findings of this collaborative effort is that to be effective, ER doctors, like managers, need to remain centered in the critical decision vortex; they need to attend equally to their analytical conclusions, the intuitive hunches that come from their experience, and remain open and attentive to their emotions