This process is self sustaining given the highly exothermic nature of synthesis reactions.
But Desmond couldn't sustain giving away OK! at a reputed cost of £250,000 a week, nor could he pay out £300,000 a week on TV advertising.
Despite concerns that it doesn't encourage sustained giving, or that it fails to acknowledge underlying issues, the awkward dance between music and charity will continue, largely because the ultimate argument remains as compelling as it did 40 years ago.
As well as the benefit of building a good working environment, in the event that you are out of class for NQT time, off sick or on a course, you know that your classroom systems are being sustained, giving your pupils consistency, which is particularly vital in a primary classroom.
Some of the project-funded opportunities, such as big inter-school workshops and regional study visits or conference attendance might be difficult to sustain giving the limited budgets of the MoH and the medical schools.
That will be hard to sustain, given America's fiscal woes.The second constraint is public opinion.
But that is a hard point to sustain, given that the past few years have seen a worldwide recession and modest recovery.
This strategy will be somewhat difficult to sustain given that Andersen used to take pride in the degree of integration across the firm.
It's vital to see that support for such work is sustained, given the early stages of understanding and enormous significance of these trends.
In her speech to the Tory conference, May appeared to be leaning to the leave side though ministers believe that would be a difficult position to sustain given her support for EU criminal justice cooperation.
Indeed, a boom would be difficult to sustain, given China's slowdown, higher investment in energy-saving technologies, less emphasis on capital- and resource-oriented growth models around the world, and the delayed increase in supply that high prices induced.
