Search Results - (Author, Cooperation:F. Colas)

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  1. 1
    Staff View
    Publication Date:
    2018-01-10
    Publisher:
    Wiley-Blackwell
    Print ISSN:
    0148-0227
    Topics:
    Geosciences
    Physics
    Published by:
    http://www.wiley.com/wiley-blackwell

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    F. Braga-Ribas ; B. Sicardy ; J. L. Ortiz ; C. Snodgrass ; F. Roques ; R. Vieira-Martins ; J. I. Camargo ; M. Assafin ; R. Duffard ; E. Jehin ; J. Pollock ; R. Leiva ; M. Emilio ; D. I. Machado ; C. Colazo ; E. Lellouch ; J. Skottfelt ; M. Gillon ; N. Ligier ; L. Maquet ; G. Benedetti-Rossi ; A. Ramos Gomes, Jr. ; P. Kervella ; H. Monteiro ; R. Sfair ; M. El Moutamid ; G. Tancredi ; J. Spagnotto ; A. Maury ; N. Morales ; R. Gil-Hutton ; S. Roland ; A. Ceretta ; S. H. Gu ; X. B. Wang ; K. Harpsoe ; M. Rabus ; J. Manfroid ; C. Opitom ; L. Vanzi ; L. Mehret ; L. Lorenzini ; E. M. Schneiter ; R. Melia ; J. Lecacheux ; F. Colas ; F. Vachier ; T. Widemann ; L. Almenares ; R. G. Sandness ; F. Char ; V. Perez ; P. Lemos ; N. Martinez ; U. G. Jorgensen ; M. Dominik ; F. Roig ; D. E. Reichart ; A. P. LaCluyze ; J. B. Haislip ; K. M. Ivarsen ; J. P. Moore ; N. R. Frank ; D. G. Lambas
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-03-29
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    B. Sicardy ; J. L. Ortiz ; M. Assafin ; E. Jehin ; A. Maury ; E. Lellouch ; R. G. Hutton ; F. Braga-Ribas ; F. Colas ; D. Hestroffer ; J. Lecacheux ; F. Roques ; P. Santos-Sanz ; T. Widemann ; N. Morales ; R. Duffard ; A. Thirouin ; A. J. Castro-Tirado ; M. Jelinek ; P. Kubanek ; A. Sota ; R. Sanchez-Ramirez ; A. H. Andrei ; J. I. Camargo ; D. N. da Silva Neto ; A. R. Gomes, Jr. ; R. V. Martins ; M. Gillon ; J. Manfroid ; G. P. Tozzi ; C. Harlingten ; S. Saravia ; R. Behrend ; S. Mottola ; E. G. Melendo ; V. Peris ; J. Fabregat ; J. M. Madiedo ; L. Cuesta ; M. T. Eibe ; A. Ullan ; F. Organero ; S. Pastor ; J. A. de Los Reyes ; S. Pedraz ; A. Castro ; I. de la Cueva ; G. Muler ; I. A. Steele ; M. Cebrian ; P. Montanes-Rodriguez ; A. Oscoz ; D. Weaver ; C. Jacques ; W. J. Corradi ; F. P. Santos ; W. Reis ; A. Milone ; M. Emilio ; L. Gutierrez ; R. Vazquez ; H. Hernandez-Toledo
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-10-28
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2011-07-08
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    J. L. Ortiz ; B. Sicardy ; F. Braga-Ribas ; A. Alvarez-Candal ; E. Lellouch ; R. Duffard ; N. Pinilla-Alonso ; V. D. Ivanov ; S. P. Littlefair ; J. I. Camargo ; M. Assafin ; E. Unda-Sanzana ; E. Jehin ; N. Morales ; G. Tancredi ; R. Gil-Hutton ; I. de la Cueva ; J. P. Colque ; D. N. Da Silva Neto ; J. Manfroid ; A. Thirouin ; P. J. Gutierrez ; J. Lecacheux ; M. Gillon ; A. Maury ; F. Colas ; J. Licandro ; T. Mueller ; C. Jacques ; D. Weaver ; A. Milone ; R. Salvo ; S. Bruzzone ; F. Organero ; R. Behrend ; S. Roland ; R. Vieira-Martins ; T. Widemann ; F. Roques ; P. Santos-Sanz ; D. Hestroffer ; V. S. Dhillon ; T. R. Marsh ; C. Harlingten ; A. C. Bagatin ; M. L. Alonso ; M. Ortiz ; C. Colazo ; H. J. Lima ; A. S. Oliveira ; L. O. Kerber ; R. Smiljanic ; E. Pimentel ; B. Giacchini ; P. Cacella ; M. Emilio
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-11-23
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Sohy, C. ; Lieutier-Colas, F. ; Casset, A. ; Meyer, P. ; Pauli, G. ; Pons, F. ; Blay, F.

    Oxford, UK : Munksgaard International Publishers
    Published 2005
    Staff View
    ISSN:
    1398-9995
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1398-9995.2005.00742.x

    Articles: DFG German National Licenses
  7. 7
    Lieutier-Colas, F. ; Meyer, P. ; Larsson, P. ; Malmberg, P. ; Frossard, N. ; Pauli, G. ; De Blay, F.

    Oxford, UK : Blackwell Science Ltd
    Published 2001
    Staff View
    ISSN:
    1365-2222
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Endotoxins found in occupational settings constitute a risk factor in the severity of respiratory allergic symptoms.Objectives To assess the airborne concentrations of major rat allergen (Rat n 1) and endotoxin under various circumstances.Methods We took 483 airborne samples from 12 sites: 114 individual samples for endotoxin measurements and 113 for Rat n 1, from 38 workers (nine animal technicians, nine laboratory technicians, nine scientists and 11 students); and 256 static samples in rat rooms and experimental rooms, with or without disturbance, for simultaneous endotoxin and Rat n 1 measurements. Rat n 1 was measured with a two-site monoclonal ELISA and endotoxins with the Limulus method.Results Airborne Rat n 1 and endotoxin were significantly higher in rat rooms than in experimental rooms. Animal technicians had the greatest exposure to both Rat n 1 and endotoxin. Cage cleaning and rat feeding induced the highest exposure to Rat n 1 and endotoxin. Furthermore, we observed no significant difference in endotoxin exposure between researchers with or without rat contact during the sample period. There was no correlation between the number of rats present and airborne endotoxin concentrations.Conclusions Exposure to airborne Rat n 1 and endotoxin is higher during cleaning and feeding tasks than during any other task, we feel that a major source of both is contaminated bedding that becomes airborne during disturbance.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1046/j.1365-2222.2001.01180.x

    Articles: DFG German National Licenses
  8. 8
    Lieutier-Colas, F. ; Meyer, P. ; Pons, F. ; Hedelin, G. ; Larsson, P. ; Malmberg, P. ; Pauli, G. ; De Blay, F.

    Oxford, UK : Blackwell Science, Ltd
    Published 2002
    Staff View
    ISSN:
    1365-2222
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Objective To analyse the relation between airborne exposure to major rat allergen and to endotoxins in exclusively rat-exposed workers and the prevalence of rat-related symptoms and sensitization.Methods A total of 113 workers answered a standardized questionnaire on their atopy status, occupational exposure to rats, and possible work-related symptoms. Specific IgE against rat urinary proteins (RUP) was measured for 73 subjects. Individual airborne exposure to Rat n 1 and endotoxin were determined with static (n = 256) samplings. Rat n 1 was measured with enzyme-linked immunosorbent assay (ELISA) and endotoxin by the Limulus method.Results Forty-four of 113 subjects (38.9%) reported at least one rat-related symptom: asthma (4.4%), rhinitis (34%) and conjunctivitis (16%). Twelve per cent were sensitized to RUP (specific IgE 〉 0.35 KU/L). But only 30.8% of all symptomatic subjects were sensitized to rat allergens. Airborne Rat n 1 levels were not related to symptoms in workers. Symptomatic patients not sensitized to rats were exposed to higher endotoxin levels, but airborne exposure to endotoxins did not significantly protect against or increase sensitization to RUP or rat-related symptoms.Conclusion Most symptomatic workers were not sensitized to rat allergen; but no significant relation between rat-related symptoms and endotoxin levels was found. This suggests that more studies are needed to determine causes other than rat allergens or endotoxins that may be responsible for symptoms in rat-exposed workers.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1046/j.1365-2745.2002.01502.x

    Articles: DFG German National Licenses
  9. 9
    Faller, M. ; Bessot, J. C. ; Lieutier-Colas, F. ; Lett, E. ; Wachsmann, D. ; Pauli, G. ; De Blay, F.

    Copenhagen : Munksgaard International Publishers
    Published 2001
    Staff View
    ISSN:
    1398-9995
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1034/j.1398-9995.2001.056006584.x

    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Pluto and its satellite, Charon (discovered in 1978; ref. 1), appear to form a double planet, rather than a hierarchical planet/satellite couple. Charon is about half Pluto's size and about one-eighth its mass. The precise radii of Pluto and Charon have remained uncertain, ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/nature04351

    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    0019-1035
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0019-1035(92)90032-3

    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    0019-1035
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1006/icar.1994.1048

    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    0032-0633
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geosciences
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0032-0633(93)90035-Z

    Articles: DFG German National Licenses
  14. 14
    Jorda, L. ; Colas, F. ; Lecacheux, J.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0032-0633
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geosciences
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0032-0633(94)90110-4

    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    1572-946X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract We present an overview of the studies we have performed of the unusual storm activity that is occurring in the Equatorial Zone (EZ) of Saturn since 1990 based on a long-term CCD imaging (261-953 nm).
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1023/A:1002112023457

    Articles: DFG German National Licenses
  16. 16
    Arlot, J. -E. ; Thuillot, W. ; Colas, F. ; Allet, Ch. ; Vu, D. T.
    Springer
    Published 1988
    Staff View
    ISSN:
    1572-9478
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract In Dynamical Astronomy, the data used to fit theories are positional observations. If the data are reduced using computers, the measure itself is not, and informations are lost. The classical way is to use photographic plates measured by hand. The use of automatic machine permits to save time but not to increase the amount of data. The arrival of silicium targets and CCD allows to acquire much more data directly stored on computer. We used this technique associated with array processors. So we succeeded to increase the accuracy of the data. This method was applied to the observation of the motion of some asteroids and of the Galilean satellites of Jupiter.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01228993

    Articles: DFG German National Licenses
  17. 17
    Arlot, J. E. ; Colas, F.
    Springer
    Published 1996
    Staff View
    ISSN:
    1572-9478
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00048831

    Articles: DFG German National Licenses
  18. 18
    Staff View
    ISSN:
    1573-0794
    Keywords:
    Comets ; Hale–Bopp ; period ; rotation ; rotational state ; dust velocity ; dust size
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Geosciences
    Physics
    Notes:
    Abstract We observed comet Hale-Bopp (C/1995 O1) at Pic du Midi Observatory in 1997 from February 2.24 UT to March 31.89 UT with the 1.05-m telescope equipped with a CCD camera and broad- and narrow-band IHW filters. A total of 30000 images were acquired both during night- and day-time. The images were automatically reduced and all the images obtained within 10 min. were co-added to give a set of ∼1000 images used during the analysis. We can identify two jets on the images. The position angle of the brightest jet from February 2.24 UT to March 5.22 UT is measured using an automatic routine which searches for the averaged position angle of the maximum of brightness at a projected distance of 3200–6100 km from the optocenter. A preliminary model of nucleus rotation is used to fit the data and retrieve the rotational parameters of the nucleus. The best fit is found for a source located at a latitude of 64 ± 3°, a sidereal rotation period of 11.35 ± 0.04 h and a right ascension and declination of the North pole of 275 ± 10° and -57 ± 10°. This preliminary analysis shows no evidence for a precession. Grains with velocities of 450–600 m s−1 and radii 〈;∼ 1 μm dominate the optical scattering cross section in the jets.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1023/A:1006234813574

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] We obtained the data presented here at the Paris Observatory at Meudon, the Pic du Midi Observatory in the French Pyrenees and the Catania Observatory on Mount Etna in Italy (see Table 1 for the instrument and geographic details). An accompanying paper by Hubbard et al6 ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/343350a0

    Articles: DFG German National Licenses
  20. 20
    Sanchez-Lavega, A. ; Colas, F. ; Lecacheux, J. ; Laques, P. ; Miyazaki, I. ; Parker, D.

    [s.l.] : Nature Publishing Group
    Published 1991
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] A giant storm, the Great White Spot, erupted at the end of September 1990 as a localized, bright cloud system close to Saturn's equator. Its evolution produced a complex planetary disturbance which affected the whole equatorial region a month later. Similar spots have appeared approximately once ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/353397a0

    Articles: DFG German National Licenses