Other times Darwin's particular mechanism of natural selection is added to the meaning. (firstthings.com)
Epigenetics (literally «above the gene») is a recent scientific development that examines how particular mechanisms can influence whether certain genes are turned off, turned on, or modify a gene's level of activity. (politics.co.uk)
The particular mechanisms employed depend on circumstances of history, geography, and culture, and decisions about them can be made responsibly only by taking account of man's acquisitive propensities, his need for rational order, his longing for freedom, and his sense of justice — in short, by relying on an integral rather than a truncated conception of human nature. (religion-online.org)