Prescriptive models prescribe particular solutions for particular learning needs. (blog.commlabindia.com)
Now the tension comes from the fact that it's been very difficult to find cosmological solutions, in particular solutions with positive dark energy, in string theory. (scientificamerican.com)
Prof MacKay had previously avoided being drawn into the political debate about energy, but told Lynas: «I have always tried to avoid advocating particular solutions but maybe because time is getting thinner I should call a spade a spade.» (theguardian.com)