منابع مشابه
Commentary on the King Edward Inquiry: every defect a treasure.
Jenny McLean and Michael Walsh have distilled well the key lessons of the events at King Edward Memorial Hospital (KEMH). To some extent KEMH is unique: the only tertiary provider of obstetric services in Perth, the world’s most isolated city. It is thus easy to think of the KEMH experience as an isolated one and engage in our own form of shaming and blaming by finger pointing at that hospital ...
متن کاملOn Non-Hamiltonian Graphs for which every Vertex-Deleted Subgraph Is Traceable
We call a graph G a platypus if G is non-hamiltonian, and for any vertex v in G, the graph G− v is traceable. Every hypohamiltonian and every hypotraceable graph is a platypus, but there exist platypuses which are neither hypohamiltonian nor hypotraceable. Among other things, we give a sharp lower bound on the size of a platypus depending on its order, draw connections to other families of grap...
متن کاملArc-chromatic number of digraphs in which every vertex has bounded outdegree or bounded indegree
A k-digraph is a digraph in which every vertex has outdegree at most k. A (k ∨ l)digraph is a digraph in which a vertex has either outdegree at most k or indegree at most l. Motivated by function theory, we study the maximum value Φ(k) (resp. Φ(k, l)) of the arc-chromatic number over the k-digraphs (resp. (k ∨ l)-digraphs). El-Sahili [3] showed that Φ(k, k) ≤ 2k+1. After giving a simple proof o...
متن کاملModules for which every non-cosingular submodule is a summand
A module $M$ is lifting if and only if $M$ is amply supplemented and every coclosed submodule of $M$ is a direct summand. In this paper, we are interested in a generalization of lifting modules by removing the condition"amply supplemented" and just focus on modules such that every non-cosingular submodule of them is a summand. We call these modules NS. We investigate some gen...
متن کاملDiagnosis for a King
Barton reviews a book based on extensive medical/historical detective work which suggests that the King suffered from a rare physical illness which baffled his doctors and made his later life a misery. a common cause of discoloration of urine is inges-tion of rhubarb and senna, drugs frequently administered to George III during his illness. A rare cause is porphyria. A common form of 'madness' ...
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ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 1982
ISSN: 0012-365X
DOI: 10.1016/0012-365x(82)90173-x