Stewart-Treves syndrome is a rare cutaneous angiosarcoma that develops in long-standing chronic lymphedema. Though most commonly this angiosarcoma is a result of post mastectomy lymphoedema, it also develops in Milroy disease, idiopathic, congenital, traumatic and filarial lymphoedema. Despite the rarity of this syndrome and its poor prognosis, early diagnosis associated with radical surgery ca...

We define a class of generic CR submanifolds of Cn of real codimension d, 1 ≤ d ≤ n, called the Bloom-Grahammodel graphs, whose graphing functions are partially decoupled in their dependence on the variables in the real directions. We prove a global version of the Baouendi-Treves CR approximation theorem for Bloom-Graham model graphs with a polynomial growth assumption on their graphing functions.

We study a class of sum of squares exhibiting the same Poisson-Treves stratification as the Oleinik-Radkevič operator. We find three types of operators having distinct microlocal structures. For one of these we prove a Gevrey hypoellipticity theorem analogous to our recent result for the corresponding Oleinik-Radkevič operator.

A theory of emotion, of its functions and evolutionary adaptive value, and of its brain mechanisms analyzed at the neuronal and neuronal network level is described. Emotions can be defined as states elicited by rewarding and punishing stimuli, and brain mechanisms that evaluate and learn about which stimuli are rewarding and punishing are therefore closely involved in emotion (Rolls, 1999, 2000...

For the hypoelliptic differential operators P = ∂ x + ( x∂y − x∂t 2 introduced by T. Hoshiro, generalizing a class of M. Christ, in the cases of k and l left open in the analysis, the operators P also fail to be analytic hypoelliptic (except for (k, l) = (0, 1)), in accordance with Treves’ conjecture. The proof is constructive, suitable for generalization, and relies on evaluating a family of e...

Pan African Medical Journal. 2016; 24:196 doi:10.11604/pamj.2016.24.196.8540 This article is available online at: http://www.panafrican-med-journal.com/content/article/24/196/full/ © Sanaa Krich et al. The Pan African Medical Journal ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0)...

Twenty-Five years ago the surgical world in England, as I remember it, was largely dominated by a small circle of London Surgeons, of whom Sir Frederic Treves might fairly be considered the chief. It was a school with a short way with dissenters, and no doubt had its little mannerisms. The instrument known as a director (a harmless tool if properly employed, and still in common use in spite of ...