Search results for "Peace"
showing 10 items of 705 documents
La constitution de classes de niveau dans les collèges : les effets pervers d'une pratique à visée égalisatrice
1997
Marie Duru-Bellat, Alain Mingat : Die Bildung der Niveauklassen in den Mittelschulen : die unerwünschten Nebenwirkungen einer Gleichstellungspraxis. Dieser Aufsatz möchte auf der Grundlage von Daten der DEP (Prospektivs- und Bewertungsabteilung des Erziehungsministeriums) in den Collèges (Mittelschulen) zwischen 1989 und 1992 die Häufigkeit und die Praxiswirkung der Bildung von Niveauklassen bewerten. Er sucht zunächst, das Konzept operativ zu gestalten und anschliessend, eine Schätzung abzuleiten, deren willkürlicher Charakter erklärt wird, zum Prozentsatz der Mittelschulen, die diese Art Klassen bei Beginn der sechsten Schulklasse einführen. Der Aufsatz befasst sich mit der von der Schüle…
Los códigos de buen gobierno ¿son útiles para mitigar los pseudoliderazgos públicos?
2021
International audience; Leadership is one of the main roles of institutions and the lack of integrity of certain leaders affects the decision logic. The corruption of leadership degenerates into a pseudo-leadership which benefits from the principle of hierarchy that exists in all organizations. The lack of integrity of the leaders affects decision making and the structure of the organization. Corrupt dynamics often show regular and organized behavior because they adapt to an institutionalized script and to the existence of interpersonal networks. Corruption cases have stimulated in the last decade the elaboration of a legislative repertoire of codes of good governance in public administrati…
Conformality and $Q$-harmonicity in sub-Riemannian manifolds
2016
We prove the equivalence of several natural notions of conformal maps between sub-Riemannian manifolds. Our main contribution is in the setting of those manifolds that support a suitable regularity theory for subelliptic $p$-Laplacian operators. For such manifolds we prove a Liouville-type theorem, i.e., 1-quasiconformal maps are smooth. In particular, we prove that contact manifolds support the suitable regularity. The main new technical tools are a sub-Riemannian version of p-harmonic coordinates and a technique of propagation of regularity from horizontal layers.
Young Adults’ Conceptions of the Sacred in Finland Today
2016
This study examined young adults’ perspectives on the concept of the sacred. Altogether, 334 young Finnish adults aged 19–35 were studied through a self-report questionnaire. The participants’ personal conceptions, reflections and experiences of the sacred were assessed with open-ended questions. Answers were classified in a data-determined content analysis using a thematic analytical approach. In addition, the study examined how these understandings of the sacred were related to subjective religiosity and how the definitions vary across gender. The findings suggest that the conceptions of the sacred mainly concentrate on individuality and personal issues, including personal opinion, rest a…
The damped harmonic oscillator in deformation quantization
2005
We propose a new approach to the quantization of the damped harmonic oscillator in the framework of deformation quantization. The quantization is performed in the Schr\"{o}dinger picture by a star-product induced by a modified "Poisson bracket". We determine the eigenstates in the damped regime and compute the transition probability between states of the undamped harmonic oscillator after the system was submitted to dissipation.
Discrete Abelian gauge symmetries and axions
2015
We combine two popular extensions of beyond the Standard Model physics within the framework of intersecting D6-brane models: discrete Zn symmetries and Peccei-Quinn axions. The underlying natural connection between both extensions is formed by the presence of massive U(1) gauge symmetries in D-brane model building. Global intersecting D6-brane models on toroidal orbifolds of the type T6/Z2N and T6/Z2xZ2M with discrete torsion offer excellent playgrounds for realizing these extensions. A generation-dependent Z2 symmetry is identified in a global Pati-Salam model, while global left-right symmetric models give rise to supersymmetric realizations of the DFSZ axion model. In one class of the lat…
Deformation Quantization: Genesis, Developments and Metamorphoses
2002
We start with a short exposition of developments in physics and mathematics that preceded, formed the basis for, or accompanied, the birth of deformation quantization in the seventies. We indicate how the latter is at least a viable alternative, autonomous and conceptually more satisfactory, to conventional quantum mechanics and mention related questions, including covariance and star representations of Lie groups. We sketch Fedosov's geometric presentation, based on ideas coming from index theorems, which provided a beautiful frame for developing existence and classification of star-products on symplectic manifolds. We present Kontsevich's formality, a major metamorphosis of deformation qu…
Subleading Regge limit from a soft anomalous dimension
2018
Wilson lines capture important features of scattering amplitudes, for example soft effects relevant for infrared divergences, and the Regge limit. Beyond the leading power approximation, corrections to the eikonal picture have to be taken into account. In this paper, we study such corrections in a model of massive scattering amplitudes in N = 4 super Yang-Mills, in the planar limit, where the mass is generated through a Higgs mechanism. Using known three-loop analytic expressions for the scattering amplitude, we find that the first power suppressed term has a very simple form, equal to a single power law. We propose that its exponent is governed by the anomalous dimension of a Wilson loop w…
Operator product expansion coefficients in the exact renormalization group formalism
2020
We study how to compute the operator product expansion coefficients in the exact renormalization group formalism. After discussing possible strategies, we consider some examples explicitly, within the $\epsilon$-expansions, for the Wilson-Fisher fixed points of the real scalar theory in $d=4-\epsilon$ dimensions and the Lee-Yang model in $d=6-\epsilon$ dimensions. Finally we discuss how our formalism may be extended beyond perturbation theory.
Electric-magnetic duality and renormalization in curved spacetimes
2014
We point out that the duality symmetry of free electromagnetism does not hold in the quantum theory if an arbitrary classical gravitational background is present. The symmetry breaks in the process of renormalization, as also happens with conformal invariance. We show that a similar duality-anomaly appears for a massless scalar field in $1+1$ dimensions.