The question for such niche divisions embedded in big corporations is whether they can co-exist indefinitely with their masters: in-house "indies" came to blows with their own studio siblings this fall over the issue of sending video "screeners" to Oscar voters.
The company said it would sell off its Hummer and Saab brands, shrink its Pontiac brand into a niche vehicle division, and explore opportunities to sell, close or consolidate the Saturn brand that — when it was started in the 1980s — was supposed to be G.M.'s answer to the smaller, fuel-efficient cars sold by Japanese competitors.
Alternatively, a stem cell may divide asymmetrically yielding one stem cell and one non-stem cell that is destined to exit from the stem cell niche (asymmetric division model).
The other program focuses on the behavior of spermatogonial stem cells in the niche, including division, differentiation, and movement (de Rooij and van Beek, 2013).
Diversity optimizes niche partitioning.
Growth of larval testes relies on asymmetric, niche-supported divisions of GSCs, whereas growth of larval ovaries relies on symmetric divisions of primordial germ cells (PGCs) (Dansereau and Lasko, 2008).
The main steps of the proposed genetic algorithm are individual coding, and then for each generation, child population division, niche crowding operation, and by evaluating the fitness function the GA can exclude individuals that do not accord with constraint conditions, and then apply selection, crossover, and mutation operations to ameliorate quality of solution.
Long before brand management became a 90's catch phrase, Pontiac carved out a niche as General Motors' excitement division.
The stem cell niche governs asymmetric cell division of two daughter cells that may either self-renew to replenish the stem cell pool or to differentiate to more committed cells.
Left alone these cells would outcompete the other cells of the niche through their increased division rate from the self antigen, Figure 2C. Figure 2C represents a scenario in a sterile environment where there is no passive attrition to suppress the initial growth of the autoreactive cell.
Resource acquisition and thus division of niche space among coexisting species is strongly impacted by individual behavior, both on the short- and long-term.
