But recently, the site has become almost unusable for me.
Closed-loop pressure retarded osmosis (PRO) has been recently proposed as a means of transforming unusable forms of energy, such as waste heat, into valuable electricity.
Specifically, the studies of Cagen et al. (1999) and Ashby et al. (1999) were recently rejected by the NTP CERHR panel on BPA as unusable for consideration in its evaluation of the health hazards posed by BPA (CERHR 2007).
Recently, there had been a small fire in the building, rendering the elevators unusable.
More recently, it has been shown that in some primates, specific mtDNA loci may be unusable for phylogeny reconstruction because of NuMts [ 8- 10].
It had been intended to improve their armaments with equipment seized from the recently disbanded Vichy French army, but when the arms arrived in Sicily, many of them had been made unusable, and some had the wrong type of ammunition or no ammunition at all.
The broader issue of waste in research, first introduced by Chalmers and Glasziou, 31 has recently been explored in a series of articles including among others waste due to inaccessible research, 32 and waste due to incomplete or unusable research reports.
They are practically unusable.
