How do we measure “measure”? Measure constructions and Metaphor

How Do We Measure Comorbidity?

This chapter reviews methods used to measure comorbidity in the context of cancer; summarising methods, identifying contexts in which they have been used and assessing the validity, reliability and feasibility of each approach. Measures of comorbidity are categorised according to whether they are based on individual conditions or simple counts, on dysfunction/function of organ systems, on condi...

How do we measure quality?

Stroke care: how do we measure quality?

The purpose of this paper is to review the methods used to measure quality of stroke care. Relevant articles were searched for on Medline using the following key words: stroke, quality, outcome of care, process of care, structure of care. Articles that examined how to measure the quality of stroke care and that examined difficulties in the measurement of care outcomes, processes, and structures...

What Does It Mean and How Do We Measure It?

T he paper by Bonow et al' in this issue of Circulation reports important empirical observations on measuring myocardial viability in humans with the potassium analogue thallium-201. After obtaining standard 20'1f exercise and redistribution images, a second dose of 201TI was injected and a third (reinjection) image was obtained beginning 10-15 minutes later. The reinjection images identified v...

How do Synapses Measure Milliseconds?

Experimental validation of a theoretical prediction by measurements has often produced a critical step forward in our understanding of brain function. Donald Hebb’s original idea that the repetitive contribution of cell A to cell Bs fi ring should result in a strengthening of this particular connection was spectacularly confi rmed by the discovery of spike timing dependent plasticity (STDP; Bi ...