324,624 research outputs found
Recension : D. Piron et Z. Evrard (dir.), Le(s) néolibéralisme(s) en Belgique. Cadre macroéconomique, applications sectorielles et formes de résistance
Cet article est une recension de l'ouvrage collectif suivant : D Piron et Z. Evrard (dir.), Le(s) néolibéralisme(s) en Belgique – Cadre macroéconomique, applications sectorielles et formes de résistance, Louvain-la-Neuve, Academia, 2023
L. Delatte, É. Evrard, S. Govaerts et P. Hazette, Sénèque. Consolation à Polybe. Index verborum. Relevés statistiques
Rocher Rosane. L. Delatte, É. Evrard, S. Govaerts et P. Hazette, Sénèque. Consolation à Polybe. Index verborum. Relevés statistiques. In: L'antiquité classique, Tome 32, fasc. 2, 1963. pp. 668-669
L. Delatte, Et. Evrard, S. Govaerts, J. Denooz, Dictionnaire Fréquentiel et Index inverse de la langue latine, L.A.S.L.A., 1981
Salat Pierre. L. Delatte, Et. Evrard, S. Govaerts, J. Denooz, Dictionnaire Fréquentiel et Index inverse de la langue latine, L.A.S.L.A., 1981. In: L'Information Grammaticale, N. 12, 1982. pp. 47-48
L. Delatte, Et. Evrard, S. Govaerts, J. Denooz, Dictionnaire Fréquentiel et Index inverse de la langue latine, L.A.S.L.A., 1981
Salat Pierre. L. Delatte, Et. Evrard, S. Govaerts, J. Denooz, Dictionnaire Fréquentiel et Index inverse de la langue latine, L.A.S.L.A., 1981. In: L'Information Grammaticale, N. 12, 1982. pp. 47-48
Models of hierarchical: galaxy formation
A semi-analytic galaxy formation model, N-body GALFORM, is developed which uses outputs from an N-body simulation to follow the merger histories of dark matter halos and treats baryonic processes using the semi-analytic model of Cole et al. We find that, apart from limited mass resolution, the only significant differences between this model and the Monte-Carlo based model of Cole et al. are due to known inaccuracies in the distribution of halo progenitor masses in the Monte-Carlo method. N-body GALFORM is used to compare Smooth Particle Hydrodynamics (SPH) and semi-analytic calculations of radiative cooling in the absence of star formation. We consider two cases: firstly, a simulation of a representative volume of the Universe with relatively poor mass resolution, and, secondly, a high resolution simulation of the formation of a single galaxy. We find good agreement between the models in terms of the mass of gas which cools in each halo, the masses of individual galaxies, and the spatial distribution of the galaxies. The semi-analytic model is then compared with a realistic, high-resolution galaxy simulation which includes prescriptions for star formation and feedback. A semi-analytic model without feedback is found to best reproduce the masses of the simulated galaxy and its progenitors. This model is used to populate a large volume with semi-analytic galaxies. The resulting luminosity function has an order of magnitude too many galaxies at high and low luminosities. We conclude that, while SPH and semi-analytic cooling calculations are largely consistent and therefore likely to be reasonably reliable, current numerical models of galaxy formation still contain major uncertainties due to the treatment of feedback, which will lead them to predict very different galaxy populations. Further work is required to find simulation algorithms which can simultaneously produce realistic individual galaxies and a population with reasonable statistical properties
Recommended from our members
Probing the gravitational potential of a nearby lensing cluster Abell 2104
The cluster Abell 2104 is one of the lowest redshift clusters (z = 0.153) known to have a gravitational lensing arc. We present detailed analysis of the cluster properties such as the gravitational potential using the X-ray data from ROSAT (HRI) and ASCA, as well as optical imaging and spectroscopic data from the CFHT. The cluster is highly luminous in the X-ray with a bolometric luminosity of Lx↑ 3 × 1045 ergs s−1 and a high gas temperature of ↑ 10.4 keV. The X-ray emission extending out to at least a radius of 1.46 Mpc, displays significant substructure. The total mass deduced from the X-ray data under the assumption of hydrostatic equilibrium and isothermal gas, is found to beMtot(r < 1.46Mpc) ↑ (8.0±0.8)×1014M. The gas fraction within a radius of 1.46 Mpc is ↑ 5−10%. The cluster galaxy velocity distribution has a dispersion of 1200 ± 200 km s−1 with no obvious evidence for substructure. The total mass within 1.46 Mpc, deduced from Jean’s equation using the observed galaxy number density distribution and velocity dispersion, is found to be ↑ 6.8 × 1014M to ↑ 2.6 × 1015M marginally consistent with the X-ray deduced total mass
Diffusive author(s), cohesive author: Analysis of S/N (1994)
This study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Publication - S. Evrard (dir.), Réformer l'Administration et réformer l'Etat. Jalons historiques et juridiques
Sébastien Evrard (textes réunis par), Réformer l'Administration et réformer l'Etat. Jalons historiques et juridiques, Paris, L'Harmattan (Questions contemporaines) 2015, ISBN:978-2-343-05789-7, 26€ 4e de couverture: Le thème de la réforme est un élément permanent du discours politique en même temps qu’un enjeu essentiel du débat démocratique: ceux qui n’ont pas le pouvoir en font un objectif de leur programme qui justifie leur combat; ceux qui détiennent l’autorité prônent la réforme et le c..
J. Charpy et G. Evrard, Archives départementales d'Ille-et-Vilaine : répertoire numérique de la sous- série 4 S. Inscription maritime (Saint-Malo, Rennes, Dinan, Cancale) 17861940.
Lespagnol A. J. Charpy et G. Evrard, Archives départementales d'Ille-et-Vilaine : répertoire numérique de la sous- série 4 S. Inscription maritime (Saint-Malo, Rennes, Dinan, Cancale) 17861940. . In: Annales de Bretagne et des pays de l'Ouest. Tome 89, numéro 4, 1982. p. 553
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
