The following result is proved. Every «-connected graph contains either a vertex whose removal results in a graph which is also «-connected or a vertex of degree less than (3n—1)/2. Introduction. A graph G is said to be n-connected if the removal of fewer than « vertices from G neither disconnects it nor reduces it to the trivial graph consisting of a single vertex. The maximum value of « for w...

Critical thinking is an essential skill for students, academics and those whose thinking forms an important aspect of their jobs. Critical thinking is a way of seeing things and a descriptive term for the set of methods used to consider problems. It leads to an informed, aware, systemic, considered and logical approach to deciding what to believe or do; with arguments and conclusions that are m...

37. Boden WE, Liang CS, Hood WB Jr: Postextrasystolic potentiation of regional myocardial performance during prolonged myocardial ischemia in the dog. Circulation 61: 1063, 1980 38. Cox JL: The ischemic zone surrounding acute myocardial infarction. Its morphology as detected by deshydrogenase staining. Am Heart J 76: 650, 1968 39. Cohn PF, Angoff GM, Sloss LJ: Noninvasively induced post extrasy...

This article describes the critically appraised topic (CAT) as a means to disseminate evidence from research literature to rehabilitation professionals. A CAT is a standardized, one-page summary of research evidence organized around a clinical question. A CAT includes a clinical bottom line that reflects synthesis of a research article and clinical application of the results. The synthesis incl...

Determined attempts to quantify social phenomena have allowed bureaucratic organisations to collect numerical data from increasingly diverse sources, in seemingly ever increasing volume. For many, there is a certain amount of comfort to be had from columns of figures, bar charts and percentages and we take for granted that statistical data will be derived from sources such as census forms, tax ...

We describe characteristic physical properties of the recently introduced class of deconfined quantum critical points. Using some simple models, we highlight observables which clearly distinguish such critical points from those described by the conventional Landau-Ginzburg-Wilson framework: such a distinction can be made quite precisely even though both classes of critical points are strongly c...