2,380,342 research outputs found
Quebec hypnotherapists' social representations of hypnosis and power
Hypnosis appears as a practice that features practitioners who deliberately display their power and the power of their technique. During a therapeutic interaction, the actors involved will mobilize representations and knowledge related to their membership groups. The aim of this research was to highlight the hypnotherapist’s social representations of hypnosis and power. A qualitative research was carried out based on semi-structured interviews with hypnotherapist (n = 21) in private practice in Quebec (Canada). According to our data, we observed and interpreted hypnosis as a staging, where power games take place between the practitioner and client. A common hypnotic dialectic is articulated including words, representations and a narrative discourse of the hypnotic experience, definition and categorization of the hypnotic phenomenon. Also the results revealed three conceptions of power: a) power-resource; b) power-substance; and c) egalitarian power. Legitimacy is a prerequisite for the exercise of power by individuals and appeared as a central element of the research study on power. The search for legitimacy is carried out through strategies, games of power, that take place in the interaction at several levels of interaction. Legitimacy appears not as an objective fact, but rather as a feeling. In fact, not feeling legitimate fits into the intersubjective space and could be thought of in terms of an absence of recognition. The discourses of practitioners have proved relevant in the development of themes and have allowed for an original interpretation of hypnosis and power relations. This study can serve as a starting point for expanding and animating discussions on power, hypnosis, and on psychotherapeutic practices in general
Incoherent interaction of nematicons in bias-free liquid-crystal cells
We study experimentally the propagation dynamics and interaction of a pair of
mutually incoherent nematicons: spatial optical solitons in nematic liquid
crystals. In contrast to earlier studies, we consider a bias-free
liquid-crystal cell and compare the soliton interaction in copropagating and
counterpropagating geometries. We analyze the dependence of nematicon
interaction on input power and observe a direct manifestation of a long-range
nonlocal nonlinearity. Attraction of counterpropagating solitons requires
higher powers and longer relaxation times than that of copropagating nematicons
due to losses-induced power asymmetry of counterpropagating nematicons.Comment: 5 pages, z figure
Self-written waveguides in photopolymerizable resins
We study the optically-induced growth and interaction of self-written
waveguides in a photopolymerizable resin. We investigate experimentally how the
interaction depends on the mutual coherence and relative power of the input
beams, and suggest an improved analytical model that describes the growth of
single self-written waveguides and the main features of their interaction in
photosensitive materials.Comment: 3 pages, 3 figure
Matter density perturbations in interacting quintessence models
Models with dark energy decaying into dark matter have been proposed to solve
the coincidence problem in cosmology. We study the effect of such coupling in
the matter power spectrum. Due to the interaction, the growth of matter density
perturbations during the radiation dominated regime is slower compared to
non-interacting models with the same ratio of dark matter to dark energy today.
This effect introduces a damping on the power spectrum at small scales
proportional to the strength of the interaction and similar to the effect
generated by ultrarelativistic neutrinos. The interaction also shifts
matter--radiation equality to larger scales. We compare the matter power
spectrum of interacting quintessence models with the measurments of 2dFGRS. We
particularize our study to models that during radiation domination have a
constant dark matter to dark energy ratio.Comment: 11 pages, 4 figures, accepted for publication in Phys. Rev.
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