L’incarnation progressive

Les oeuvres de Valère Novarina sont moins des énoncés que des énonciations vives. Elles traitent de l’acte de créer de l’humanité en procédant à une mise en corps toujours à recommencer. En gésine permanente, elles sont aussi profération de paroles oraculaires et se révèlent à la fois origines et commencements possibles mais improbables.The works of Valère Novarina are less enunciates than vivid statements. They deal with the act of creating humanness by conducting a never ending putting into body. Permanent childbirth, they are also proferations of oracular speech and reveal themselves as both possible yet improbable origins and beginnings

Resistencia, resistencias

The concept of resistance is reviewed, initially from its political sense and later in its psychological sense in relation to change. The article values the paper of the art therapy and the function of the artists in that context, in relation to the resistance and the treatment of the differences

La creación como proceso de transformación

The paper makes a distinction between what it is not art therapy and a definition of this one as a process of accompaniment of persons in difficulty across the artistic productions. This process tries to allow to the subject to re-create himself in a symbolic tour: a process of accompanied symbolization. The therapeutic process is described as the step of a narrative centred on I/here/now, to a narrative centred in /he/it/, which provokes the transformation of the creative subject. There is distinguished, likewise, between what the art therapist must learn to accompany in this process and what sometimes it is believed, erroneously, that it forms a part also of his formation

Resonances for a diffusion with small noise

We study resonances for the generator of a diffusion with small noise in $R^d$ :$L_\epsilon = -\epsilon\Delta + \nabla F \cdot \nabla$, when the potential F grows slowly at infinity (typically as a square root of the norm). The case when F grows fast is well known, and under suitable conditions one can show that there exists a family of exponentially small eigenvalues, related to the wells of F . We show that, for an F with a slow growth, the spectrum is R+, but we can find a family of resonances whose real parts behave as the eigenvalues of the "quick growth" case, and whose imaginary parts are small.Comment: 36

All speed scheme for the low mach number limit of the Isentropic Euler equation

An all speed scheme for the Isentropic Euler equation is presented in this paper. When the Mach number tends to zero, the compressible Euler equation converges to its incompressible counterpart, in which the density becomes a constant. Increasing approximation errors and severe stability constraints are the main difficulty in the low Mach regime. The key idea of our all speed scheme is the special semi-implicit time discretization, in which the low Mach number stiff term is divided into two parts, one being treated explicitly and the other one implicitly. Moreover, the flux of the density equation is also treated implicitly and an elliptic type equation is derived to obtain the density. In this way, the correct limit can be captured without requesting the mesh size and time step to be smaller than the Mach number. Compared with previous semi-implicit methods, nonphysical oscillations can be suppressed. We develop this semi-implicit time discretization in the framework of a first order local Lax-Friedrich (LLF) scheme and numerical tests are displayed to demonstrate its performances

Comment on "Precision global measurements of London penetration depth in FeTe0.58Se0.42"

International audienceCho et al. [Phys. Rev. B 84, 174502 (2011)] have reported on the temperature dependence of the London penetration depth deduced from tunnel diode oscillator (TDO) measurements in optimally doped Fe(Se,Te) single crystals. According to their analysis, these measurements could suggest a nodeless two-gap pairing symmetry with strong pair-breaking effects. However, to reach this conclusion, the authors fit the temperature dependence of the superfluid density with a two band clean limit model, which is incompatible with the presence of strong pair-breaking effects, deduced from the T n temperature dependence of the London penetration depth below Tc/3. Moreover, they claim that their results are also ruling out the suggestion that surface conditions can significantly affect the TDO data, but this conclusion is based on one very specific damaging process and completely ignores the large dispersion in the previously published TDO data