Witt's example is of a house: the essential house-functional property (what the entity is for, what its purpose is) unifies the different material parts of a house so that there is a house, and not just a collection of house-constituting particles (2011a, 6).
For example, sequestration is putting many Americans' ability to tour their own homes in jeopardy, as essential housing subsidies get slashed.
If only Congress would expand HUD's budget to support this additional research (after it restores the funds recently cut out of essential housing programs for low income families!).
However, among the 35 genes that are uniformly highly expressed are several essential house-keeping genes such as Hsc70, BiP, Hsp90, calreticulin, and calnexin.
The third gene in this category is sigA encoding the essential house-keeping sigma factor SigA.
Because of their more restricted spatial and temporal expression profiles, transcription factor genes are not expected to be as highly expressed as essential house-keeping genes in whole-organism libraries.
A caution for these finding is that high levels of expression might be expected for some essential house-keeping genes, leading them to be well represented in even an incomplete transcriptome sequencing effort.
The two categories, 1) the provision of inappropriate essential housing infrastructure items and 2) inappropriate use by householders, somewhat overlap.
