Whereas most previous papers on the topic concentrated on the number of wavelengths assigned to a given set of lightpaths, recent papers argue that the number of ADMs is a more realistic cost measure.
The work describes actual policy initiatives in Latin America, and avoids the frequent limits of much discussion on this topic which often concentrates primarily on the US and EU experience and simply advocates greater adoption of such policies elsewhere.
The few studies that focus exclusively on this topic have been concentrated in North America.
Stability is one of the most important properties of dynamic systems, and a massive monograph has been concentrated on this topic for positive systems [4 9].
Three specialised books, or catalogue chapters, (Freeman & Stubbs, Munk and Meredith), issued within five years of issue have concentrated on this topic and Meredith is regarded as unequalled.
While authors have previously considered this topic [ 43, 44], we concentrated on discussions of equity related to research findings and implications for proposed interventions.
I will spare here examples of my department on this topic [ 12, 34] but concentrate on the field of sonochemistry which sounds exotic and is rather difficult to study quantitatively.
At the moment, editorial decisions are being made in favor of covering bad economic news at the expense of other important topics, concentrating media coverage obsessively on negative stories about the economy.
Most research concentrates on polymer electrolyte membrane or solid oxide fuel cells in this topic with little published regarding the durability of recirculating liquid electrolyte alkaline fuel cells.
We did concentrate mostly on the involvement of chaperones in protein quality control but this was because this topic was insufficiently covered in the past.
