GASTINEAU , M.

86Rb+ efflux was measured on polarized Madin-Darby canine kidney cells under A23187 or ATP stimulation. This efflux, inhibited by barium, Leiurus quinquestriatus hebraeus venom and charybdotoxin was attributed to the stimulation of Ca(++)-activated maxi K+ channels. Snake venom from Dendroaspis polylepis did not alter the stimulation as well as...

CALCEPH accesses binary planetary ephemeris files, including INPOPxx, JPL DExxx ,and SPICE ephemeris files. It provides a C Application Programming Interface (API) and, optionally, a Fortran 77 or 2003 interface to be called by the application. Two groups of functions enable the access to the ephemeris files, single file access functions,...

International audience

Planetary ephemerides are a good tool for studying general relativity at the scale of our solar system. We present here new evaluations of advances of perihelia for Mercury and Saturn.

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Aims. We are testing the Brans–Dicke class of scalar tensor theories with planetary ephemerides.Methods. In this work, we apply our recently proposed Bayesian methodology to the Brans–Dicke case, with an emphasis on the issue of the strong equivalence principle (SEP).Results. We use an MCMC approach coupled to full, consistent planetary...

We used the INPOP19a planetary ephemerides to perform the orbital adjustment of 14099 asteroids based on Gaia-DR2 observations and compare for 23 of them the resulting orbits to radar data. As Gaia-DR2 has been processed using the planetary ephemeris INPOP10e, the primary goal of this paper is to confirm the portability of the data when using...

In this paper, are given numerical estimations of the sensitivity of the latest version of the INPOP planetary ephemerides (INPOP13c) to GR parameters: the PPN parameters β, γ, and the oblateness of the Sun J⊙2. Time variations of the gravitational mass of the Sun μ are also considered. A first estimation is obtained by fitting these parameters...

We use the planetary ephemeris INPOP17b to constrain the existence of a Yukawa suppression to the Newtonian potential, generically associated with the graviton's mass. We also give an interpretation of this result for a specific case of fifth force framework. We find that the residuals for the Cassini spacecraft significantly (90% C.L.) degrade...

We present here the new INPOP lunar ephemeris, INPOP17a. This ephemeris is obtained through the numerical integration of the equations of motion and of rotation of the Moon, fitted over 48 yr of lunar laser ranging (LLR) data. We also include the 2 yr of infrared LLR data acquired at the Grasse station between 2015 and 2017. Tests of the...

Context. Recent discoveries of new trans-Neptunian objects have greatly increased the attention by the scientific community to this relatively unknown region of the solar system. The current level of precision achieved in the description of planet orbits has transformed modern ephemerides in the most updated tools for studying the gravitational...

Techniques using microdissected tubules from rabbit kidney allow the isolation of well defined segments which can be cultured to obtain pure renal cell epithelia. From microdissected proximal tubules, we obtained epithelia the cells of which exhibit some of the antigenic expressions of the initial proximal cells. For this purpose, we used three...