106,813 research outputs found
Scalelength of 30000 SDSS disc galaxies (Fathi+, 2010)
No full textDisc scalelength (h) for 30000 galaxies from the Sloan Digitized Sky Survey (SDSS) Data Release 7, in the r-band. Also included is the Asymmetry parameter for each galaxy. Virtual Observatory methods and tools were used to define, retrieve and analyze the images for this unprecedentedly large sample classified as spiral galaxies in the LEDA catalogue. These parameters are also available for all other SDSS bands (u,g,i,z), and they can be retrieved from the Author. An extensive discussion about the errors involved in the derived parameters can be found in Fathi et al. (2010MNRAS.406.1595F) and Fathi (2010ApJ...722L.120F) (1 data file)
Scalelength of 30000 SDSS disc galaxies (Fathi+, 2010)
No full textDisc scalelength (h) for 30000 galaxies from the Sloan Digitized Sky Survey (SDSS) Data Release 7, in the r-band. Also included is the Asymmetry parameter for each galaxy. Virtual Observatory methods and tools were used to define, retrieve and analyze the images for this unprecedentedly large sample classified as spiral galaxies in the LEDA catalogue. These parameters are also available for all other SDSS bands (u,g,i,z), and they can be retrieved from the Author. An extensive discussion about the errors involved in the derived parameters can be found in Fathi et al. (2010MNRAS.406.1595F) and Fathi (2010ApJ...722L.120F) (1 data file)
Fathi H. — Femmes d'autorité dans l'Asie centrale contemporaine. Quête des ancêtres et recompositions identitaires dans l'islam postsoviétique
No full textHohmann Sophie. Fathi H. — Femmes d'autorité dans l'Asie centrale contemporaine. Quête des ancêtres et recompositions identitaires dans l'islam postsoviétique. In: Population, 59ᵉ année, n°6, 2004. pp. 1003-1005
Uniqueness of invariant Lagrangian graphs in a homology or a cohomology class
No full textGiven a smooth compact Riemannian manifold M and a Hamiltonian H on the cotangent space T* M, strictly convex and superlinear in the momentum variables, we prove uniqueness of certain "ergodic" invariant Lagrangian graphs within a given homology or cohomology class. In particular, in the context of quasi-integrable Hamiltonian systems, our result implies global uniqueness of Lagrangian KAM tori with rotation vector p. This result extends generically to the C°-closure of KAM tori
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Procès-verbal n° 226
No full textDaressy Georges, Fathi Ibrahim, Simaïka Marcus H., Fahmy Mahmoud. Procès-verbal n° 226. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 32, exercice 1915-1919, 1922. pp. 437-438
Procès-verbal n° 218
No full textDaressy Georges, Fathi Ibrahim, Bahgat Ali, Simaïka Marcus H. Procès-verbal n° 218. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 32, exercice 1915-1919, 1922. pp. 326-331
Procès-verbal n° 227
No full textDaressy Georges, Fathi Ibrahim, Bahgat Ali, Simaïka Marcus H. Procès-verbal n° 227. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 32, exercice 1915-1919, 1922. pp. 439-444
Procès-verbal n° 234
No full textDaressy Georges, Fathi Ibrahim, Fahmy Mahmoud, Simaïka Marcus H. Procès-verbal n° 234. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 32, exercice 1915-1919, 1922. pp. 532-536
Procès-verbal n° 229
No full textDaressy Georges, Fathi Ibrahim, Simaïka Marcus H., Fahmy Mahmoud. Procès-verbal n° 229. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 32, exercice 1915-1919, 1922. pp. 476-488
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