Pink Triangles

Goal(yellow) Green Green Pink Pink Pink Pink Pink Yellow Yellow Field(green)

Pink Disease *

physical signs of disease in lung still present, though less marked than on admission. General health improved, but not restored. In the 1930-1 report, Sir St. Clair Thompson states :-"Out of thirteen cases with laryngeal tuberculosis, approximately thirty per cent. were "arrested," while sixty-six per cent. of the remainder were "improved." These figures suggest that with more modern methods o...

Pink Disease

THE first account of this disease was published in 1903 by Selter of Solengin, who called it trophodermatoneurosis, but not until Dr. Swift of Australia described it was it recognised as a clinical entity. Since then numerous descriptions have appeared, including that of Feer, a German paediatrician. Several names are still current, e.g., erythrcedema, acrodynia, dermato-polyneuritis, while in ...

Pink Disease

MUCH has been written in recent years about the cause and origin of Pink Disease (Erythrodema Polyneuritica). It is only within the last twenty years that the condition has been recognised. It was thought to be a nutritional disorder due to lack of vitamin B, a variation of this being that it was due to lack of absorption of vitamin B. Later it was thought to be due to a virus and to have a sli...

Frustrated triangles

A triple of vertices in a graph is a frustrated triangle if it induces an odd number of edges. We study the set Fn ⊂ [0, n 3  ] of possible number of frustrated triangles f (G) in a graph G on n vertices. We prove that about two thirds of the numbers in [0, n3/2] cannot appear in Fn, and we characterise the graphs G with f (G) ∈ [0, n3/2]. More precisely, our main result is that, for each n ≥...