Differentiated neurons appear to be irreversibly post-mitotic, perhaps because a hypothetical cell division would result in cytoskeletal and synaptic disruption in order to prepare the cell for mitosis and cytokinesis, which would in turn impair neuronal connectivity and function.
More important were a series of commentaries (one on the Categories, two each on the On Interpretation and on Porphyry's Isagoge, and one on Cicero's Topics) (see Medieval Theories of Categories), together with several other works on categorical and hypothetical syllogisms, logical "division," and on the differences between Aristotle's and Cicero's Topics.
So far, several hypothetical models of membrane division have been suggested for Arf1 and dynamin (Beck et al., 2011; Roux et al., 2006; Schmid and Frolov, 2011) and for ESCRTIII (Hurley and Hanson, 2010), but these do not provide a quantitative basis on the forces driving membrane scission.
comI, encodes the putative competence inhibitor ComIDSM13; aphA, kanamycin resistance gene; ftsW, cell-division protein; BL05057, hypothetical protein of unknown function; BL05058, putative DNA-binding protein; BL01194, putative DNA-binding protein.
These correspond to, but are not exactly the same as, the Aristotelian division into categorical and hypothetical propositions.
A second example of the way Averroes works is his reappraisal and vindication of Aristotle's doctrines of the hypothetical syllogistic against Avicenna's alternative division into connective and repetitive syllogisms (see Averroes Maqâlât [1983] essay 9, 187 207).
Boole worked only with Aristotelian propositions in MAL, using the traditional division into categoricals and hypotheticals.
Although the gene organization is different, after a detailed structural comparison, we propose that a gene previously annotated in the chlamydial genomes to date as a hypothetical protein might be the missing cell division gene ftsL.
We simulate a hypothetical cell population of 1000 cells with division and death rates α i(t) = α = β i(t) = β = 0.1[1/ d].
