The phrase "a chemical factor" is correct and usable in written English.
It can be used in scientific or technical contexts to refer to a specific chemical element or compound that influences a process or outcome.
Example: "In the study of plant growth, light is not the only factor; a chemical factor such as nitrogen levels also plays a crucial role."
Alternatives: "a chemical element" or "a chemical component".
Some bacteria secrete a chemical factor that induces [GAR].
He felt that the gradient was caused by the action of a chemical factor on cell functions.
Although it is understandably tight-lipped about the exact mechanism behind its success, one probably enlists the help of cells called keratinocytes, which interact naturally with the dermal papilla cells of the hair follicle and secrete a chemical factor that supports their growth.
One possibility is that there is a chemical factor in Asc-08007-1-1 that is responsible.
While GDP is, essentially, a 'missing signals' model as well, in GDP the missing signal is not a chemical factor (eg. cytokine) or spatial pattern (eg. epitope, TLR activation, etc)., but rather, the temporal pattern of growth itself.
The pathogenesis of cerebral vasospasm after SAH is not fully understood, but attention has focused on the role of inflammatory responses and immunological reactions to a chemical factor, probably oxyhaemoglobin, among others [ 4, 10, 11].
Hormesis is defined as a process in which exposure to a low dose of a chemical agent or environmental factor that is damaging at higher doses induces an adaptive beneficial effect on the cell or organism.
TGF-β1 appears to be an important chemical factor for driving MSCs toward an SMC phenotype as previously hypothesized.
Thus, its deficiency becomes an important chemical factor restricting plant growth in soils.
That provision of excess recombinant FGF2 at this stage, followed by ESC injection 24 hours later, is not compatible with PrE rescue provokes the intriguing speculation that PrE differentiation depends upon a hitherto unsuspected chemical factor or a specific physical interaction facilitated by the presence of epiblast-like cells within the embryo.
In 2007, Shinya Yamanaka showed it was possible to turn adult skin cells into embryonic-like stem cells, called induced pluripotent stem cells (iPSCs), using just a few chemical factors.
