The study was carried out by determining the effect of calcium ethylenediaminetetraacetate on the excretion and distribution in rats of a number of rare earths and yttrium, and correlating the magnitude of these effects with the stability constants of the chelates formed with some of the rare earths. These rare earths were selected because they form a long series of closely related elements wit...

Many Sun-like stars are observed to host close-in super-Earths (SEs) as part of a multi-planetary system. In such system, the spin SE evolves due spin-orbit resonances and tidal dissipation. absence tides, planet's obliquity can evolve chaotically large values. However, for SEs, dissipation is significant suppresses chaos, instead driving into various steady states. We find that attracting stat...

abstract in this paper, we study the generalized order- jacobsthal sequences modulo for and the generalized order-k jacobsthal-padovan sequence modulo for . also, we define the generalized order-k jacobsthal orbit of a k-generator group for and the generalized order-k jacobsthal-padovan orbit a k-generator group for . furthermore, we obtain the lengths of the periods of the generalized order-3 ...

ABSTRACT Planet–planet scattering events can leave an observable trace of a planet’s migration history in the form orbital misalignment with respect to stellar spin axis, which is measurable from spectroscopic time-series taken during transit. We present high-resolution transits observed ESPRESSO close-in super-Earth ? Men c. The system also contains outer giant planet on wide, eccentric orbit,...