Hommage à Marie Delcourt (1891-1979)

Hommage to reactive psychosis.

When looking back in the history of psychiatry, the concept of reactivity had very variable impact on ethiological considerations. If classification of mental disorders is taken as a proxy, it seems that this impact is presently at the lowest that it has been in the last hundred years. The author gives a short historical overview of concept of reactive psychosis, followed by a description of th...

Nodule de Sœur Marie-Joseph: pensez à regarder le nombril

Nous rapportons le cas d'une jeune patiente de 28 ans, ayant comme antécédent la notion d'épisodes de constipation. Elle a présenté depuis 2 mois une masse d'apparition brutale au niveau de l'ombilic avec notion de suintement. L'examen dermatologique a objectivé une tumeur cutanée et sous cutanée de consistance dure, de couleur rosé, à surface mamelonnée, suintante, ulcérée par endroit, de 1 cm...

Percolation Theory Authors : Michelle Delcourt

Otto Mangold (1891-1962)

Otto Mangold [5] was an early-twentieth-century embryologist who specialized in the development of amphibian embryos. A major emphasis of his research was refining the concept of the organizer [6], now referred to as embryonic induction [7]. He was born on 4 November 1891 in Auenstein, Germany, and came from what Viktor Hamburger [8], a colleague and personal acquaintance, described as ?peasant...

Alfred Henry Sturtevant (1891?1970)

Alfred Henry Sturtevant studied heredity in fruit flies in the US throughout the twentieth century. From 1910 to 1928, Sturtevant worked in Thomas Hunt Morgan?s research lab in New York City, New York. Sturtevant, Morgan, and other researchers established that chromosomes play a role in the inheritance of traits. In 1913, as an undergraduate, Sturtevant created one of the earliest genetic maps ...