Hydrogen isotopic anomalies in extraterrestrial organic matter: role of cosmic ray irradiation and implications for UCAMMs

Autor: A. N. Agnihotri, H. Vermesse, J. Duprat, T. D. Wu, Philippe Boduch, J. L. Guerquin-Kern, Cécile Engrand, Hermann Rothard, Georges Slodzian, Emmanuel Dartois, B. Augé

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 627, pp.A122. ⟨10.1051/0004-6361/201935143⟩
Astronomy and Astrophysics-A&A, 2019, 627, pp.A122. ⟨10.1051/0004-6361/201935143⟩

Context. Micrometeorites represent, at timescales shorter than a few million years, the dominant source of extraterrestrial matter at the surface of the Earth. Analyses of ultracarbonaceous micrometeorites recovered from Antarctica, known as UCAMMs r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2d024af73e3ff49cb9ba5fdc464e9ef
https://doi.org/10.1051/0004-6361/201935143

Focussing of a transient low energy Cs+probe for improved NanoSIMS characterizations

Autor: A. Croisy, M. Bernheim, J. L. Guerquin-Kern, Ting-Di Wu

Publikováno v: The European Physical Journal Applied Physics. 42:311-319

Surface caesium content is known to greatly influence the negative ion yield during SIMS analyses. In NanoSIMS, a 16 keV ion probe of Cs + simultaneously performs the surface enrichment and the sample sputtering. To increase the surface caesium conte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::043cf74d65e6299494da0e394a5dfc44
https://doi.org/10.1051/epjap:2008062

Ultracarbonaceous Antarctic micrometeorites recovered from snow at the Dome C - CONCORDIA station

Autor: Engrand, C, J Duprat, Bardin, N, Slodzian, G, E Dartois, Benzerara, K, H Leroux, Quirico, E, Remusat, L, Dobric, E, Delauche, L, Baklouti, D, Brunetto, R, M Godard, Kakazu, Y, Wu, T.-D., J.-L Guerquin-Kern

第6回極域科学シンポジウム[OA] 南極隕石11月17日（火） 国立国語研究所 2階 講堂

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::f65b7da3d12604d65cf8d5a2c407b662
http://id.nii.ac.jp/1291/00011913/

A Microwave Diffraction Tomography System for Biomedical Applications

Autor: G. Peronnet, A. Izadnegahdar, L. Jofre, Yves Michel, M. Gautherie, J.Ch. Bolomey, J. L. Guerquin-Kern, Ch. Pichot, C. Szeles

Publikováno v: 13th European Microwave Conference, 1983.

This paper describes a 3 GHz experimental set-up for quasi real time tomography of biological media. Experiments on animal organs illustrate the main features of this imaging process.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86d22f9863c7b71c7546f44c23575d9f
https://doi.org/10.1109/euma.1983.333285

Direct in vivo observation of 5-fluorouracil release from a prodrug in human tumors heterotransplanted in nude mice: a magnetic resonance study

Autor: J L, Guerquin-Kern, A, Volk, E, Chenu, R, Lougerstay-Madec, C, Monneret, J C, Florent, D, Carrez, A, Croisy

Publikováno v: NMR in biomedicine. 13(5)

A glucuro-conjugated carbamate derivative of 5-fluorouracil (5-FU), originally designed as a prodrug for antibody-directed enzyme prodrug therapy (ADEPT) application, has been used for direct in vivo observation of in situ 5-FU generation in two huma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::79100e5bb3e9b68cef8043d299427d5a
https://pubmed.ncbi.nlm.nih.gov/10960921