The phrase "are so derived" is correct and usable in written English.
It can be used when discussing the origin or source of something, particularly in academic or technical contexts.
Example: "The results of the experiment are so derived from the initial hypothesis that they confirm its validity."
Alternatives: "are thus obtained" or "are consequently derived".
The principal components are so derived that they are uncorrelated with each other, and the first component accounts for the highest possible variance, the second the second highest variance, and so on.
Two of the genes for bacterial pepsins might be derived from horizontal gene transfer from a eukaryote, but whether all the bacterial genes for the bacterial pepsins are so derived is debatable, and evidence is presented for and against the case.
But not all such statements can be so derived, and there must be some statements not inferred (i.e., axioms).
And again we may suppose that Speusippus is among them: he would say that the elements, not being so derived, are not beings, and that numbers, derived from those elements, are the first beings.
This begs the question "what about the most craniodentally specialized of the early hominins, Paranthropus boisei?" Conventional wisdom suggests that the adaptive morphology of P. boisei was so derived that it must have been a dietary specialist [7], [21] (Fig S1).
For example, some investigators [ 5] have found that 22.4% of total renal CO2 production in chronic acidosis is derived from lactate oxidation, while 47.4% is so derived in alkalosis.
Unbiased cell estimates were so derived: Let the ordered series of sections for a specimen be, and let the sampling density be 1/ X, where Q = M × X, then a random number is extracted and every section is analyzed.
"Bob le Flambeur" is, in a peculiar way, far more accessible to American audiences than "Grisbi," both because Melville's loose, shaggy-dog style is more familiar -- it prefigures the anything-goes approach of the New Wave -- and because his middle-aged gangsters are so obviously derived from American models.
Sometimes they are frames to what looks like unquantifiable movement, sometimes they are patterns resembling chromed-out quilts, and often they suggest the graininess and form of natural landscapes even though they are so clearly derived from technology.
(Women service members represent approximately 15% of active duty and 18% of the Guard and Reserves). Because estimates vary widely and are so inconclusively derived, it almost doesn't make sense to share what those statistics are; they have very little chance of being even in the ballpark of accurate.
