Slow progress to cleaner coal

Cleaner Coal Technology Programme

Slow progress--but progress nonetheless.

Cleaner Power in India: Towards a Clean-Coal-Technology Roadmap

Progress in Coal Pyrolysis Research

The factors considered are summarized in Table 1. The problem of answering the questions is that multiple chemical reactions occur whose results depend on how the reactants are bound in the coal macromolecular network. Species-selective transport of the reactants and products further complicate the interpretations. In what follows, we have tried to focus on topics where answers are needed or wh...

Stroke thrombolysis: slow progress.

During the past decade, few topics have prompted as much controversy as stroke thrombolysis. Although there is general agreement that thrombolysis of stroke patients is effective, the major issue is case selection: Who should give what drug at what dose? Where, how, and to which patients? Like many potent treatments, there is great potential for effectiveness but also important risk of harm. In...