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A folded symplectic form on a manifold is a closed 2-form with the mildest possible de-generacy along a hypersurface. A special class of folded symplectic manifolds are the origami sym-plectic manifolds, studied by Cannas da Silva, Guillemin and Pires, who classified toric origami man-ifolds by combinatorial origami templates. In this paper, we examine the(More)
" Codimension one symplectic foliations and regular Poisson structures. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Dedicated to the memory of Paulette Libermann whose cosymplectic manifolds play a fundamental role in this paper. Abstract. In this short note we give a complete(More)
Naïve FoxP3-expressing regulatory T-cells (Tregs) are essential to control immune responses via continuous replenishment of the activated-Treg pool with thymus-committed suppressor cells. The mechanisms underlying naïve-Treg maintenance throughout life in face of the age-associated thymic involution remain unclear. We found that in adults thymectomized(More)
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