Výsledky vyhledávání

Interstellar and interplanetary carbonaceous solids in the laboratory

Autor: G. Briani, Rosario Brunetto, Eric Quirico, Gilles Morinaud, Paul Dumas, Cécile Engrand, Bruno Crane, Nicolas Szwec, Laurent Remusat, Emmanuel Dartois, Christophe Sand, Smail Mostefaoui, Thomas Pino, Frédéric Jamme, N. Bardin, L. Delauche, J. Duprat

Publikováno v: Geochemical Journal-Japan
Geochemical Journal-Japan-, The Geochemical Society of Japan, 2014, 48, pp.511-518. ⟨10.2343/geochemj.2.0330⟩
Geochemical Journal-Japan-, 2014, 48, pp.511-518. ⟨10.2343/geochemj.2.0330⟩

International audience; The interstellar medium (ISM) is a physico-chemical laboratory where extreme conditions are encountered and whereparticular environmental parameters (e.g., density, reactant nature, radiation, temperature, time scales) define

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::736b985cf9ad925cf080b8e6818686ba
https://hal.archives-ouvertes.fr/hal-01086390

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Synthesis of analogues of cometary organic matter: thermochemical evolution and preparation of in-situ observations

Autor: G. Briani, Yves Bénilan, Léna Le Roy, Marie-Claire Gazeau, Hervé Cottin, Nicolas Fray

Publikováno v: BIO Web of Conferences, Vol 2, p 03007 (2014)

An organic residue is remaining at 300 K after the VUV photolysis of ices mixture and subsequent heating. This residue is thought to be representative of the organic matter contained in comets. Our experiments show that the thermal evolution is an im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1524f5d756fd68f3cbcf03d3cece13ec
https://doaj.org/article/c870696ed89941af964336160ef19a16

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HMT production and sublimation during thermal process of cometary organic analogs. Implications for its detection with the ROSETTA instruments

Autor: Sébastien Perrier, Nicolas Fray, Marie-Claire Gazeau, G. Briani, Yves Bénilan, Hervé Cottin

Publikováno v: Icarus
Icarus, Elsevier, 2013, 226, pp.541-551. ⟨10.1016/J.ICARUS.2013.05.038⟩

One important component of refractory organic residues synthesized from interstellar/cometary ice analogues is hexamethylenetetramine (HMT, C6H12N4). However, HMT has never been observed in any astrophysical or planetary environment so far. We invest

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39770a89708f09968677bd43d9732e8c
http://hal.in2p3.fr/in2p3-00920353

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UltraCarbonaceous Antarctic micrometeorites, probing the Solar System beyond the nitrogen snow-line

Autor: Laurent Remusat, S. Mostefaoui, J. Duprat, Rosario Brunetto, G. Briani, B. Crane, Ch. Sandt, Frédéric Jamme, G. Morinaud, L. Delauche, P. Dumas, N. Bardin, Cécile Engrand, N. Szwec, Thomas Pino, Emmanuel Dartois, Eric Quirico

Publikováno v: Icarus
Icarus, Elsevier, 2013, 224, pp.243-252. ⟨10.1016/J.ICARUS.2013.03.002⟩
Icarus, Elsevier, 2013, 224, pp.243-252. ⟨10.1016/j.icarus.2013.03.002⟩

International audience; The current Solar System architecture is aheritage of the protoplanetary disk that surrounded the young Sun, 4.56 Gy ago. Primitive extraterrestr ial objects provide means to trace back the primordial composi- tion and radial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::269eeb9783c8c77c22b128137e8d6a49
http://hal.in2p3.fr/in2p3-00852040

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Short duration thermal metamorphism in CR chondrites

Autor: Eric Quirico, Pierre Beck, François-Régis Orthous-Daunay, Sara S. Russell, Anton T. Kearsley, Lydie Bonal, M. Paulhiac-Pison, Gilles Montagnac, Matthieu Gounelle, Emmanuel Jacquet, G. Briani

Publikováno v: Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, 2013, 122, pp.267-279. ⟨10.1016/j.gca.2013.08.022⟩
Geochimica et Cosmochimica Acta, Elsevier, 2013, 122, pp.267-279. ⟨10.1016/j.gca.2013.08.022⟩

International audience; CR chondrites are considered as one of the most primitive classes of meteorites. Most of them experienced a mild aqueous alteration and show no evidence of significant effect of thermal metamorphism. We present here a search f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ac2372d5a3ffad61b5e3b2ddac3840
https://hal.science/hal-01003962

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On the prospective detection of polyoxymethylene in comet 67P/Churyumov-Gerasimenko with the COSIMA instrument onboard Rosetta

Autor: G. Briani, Christelle Briois, Laurent Thirkell, Hervé Cottin, Léna Le Roy, Nicolas Fray, Martin Hilchenbach, Gilles Poulet

Publikováno v: Planetary and Space Science
Planetary and Space Science, Elsevier, 2012, 65, pp.83-92. ⟨10.1016/j.pss.2012.01.011⟩
Planetary and Space Science, Elsevier, 2012, 65, pp.83-92. 〈10.1016/j.pss.2012.01.011〉

The presence of polyoxymethylene (POM) in cometary grains has been debated years ago. Although never proven, its presence can not be excluded. Rosetta, the ESA mission to comet 67P/Churyumov-Gerasimenko, may answer this question. On board the spacecr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbadc95e29f1355bb114a5a1e076d8d7
https://hal.in2p3.fr/in2p3-00779619

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β-Cell Function in Pancreatic Adenocarcinoma

Autor: Alessandro P. Burlina, G. Del Favero, F. D’Angeli, Daniela Basso, Mario Plebani, M.P. Panozzo, C Ferrara, G Briani, Paola Fogar, Tamara Meggiato

Publikováno v: Pancreas. 9:332-335

To evaluate beta-cell function in patients with pancreatic cancer, the glucagon stimulation test was performed in seven patients with pancreatic adenocarcinoma, seven patients with type I diabetes mellitus, seven patients with type II diabetes mellit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12a1e35255766db58cd85ee4f4ef2fde
https://doi.org/10.1097/00006676-199405000-00008

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