The phrase "are effectively identical" is correct and usable in written English.
It can be used when discussing two or more items, concepts, or entities that are very similar or indistinguishable in function or meaning.
Example: "In terms of functionality, the two software applications are effectively identical, offering the same features and user experience."
Alternatives: "are essentially the same" or "are practically indistinguishable."
Already we're seeing applications that are effectively identical to others.
The full band structures (60, 80 not shown here) are effectively identical from the valence band maximum (VBM) to well above the Fermi level.
Although they are effectively identical for 3-D neighboring purposes, the conformer generation processing employed in PubChem3D resulted in different "default" conformers that are effectively mirror images of each other, with an insignificant energy difference of less than 0.5 kcal/mol.
However, it is easy to see that the two problems are effectively identical.
Furthermore, the starting point at which a selfing lineage might be used to produce offspring that are effectively identical genetically should be established and controlled (as has been done for the standard inbred strains of house mice [8], [9]).
The latter were necessary to include female progeny crossed with male inbreds and are effectively identical to backcrosses, as all inbred animals are near isogenic.
(Nowadays, especially in film, the adultery narrative is effectively identical with crime fiction — crime, confession, consequence).
Already FriendFeed is smart about avoiding recursive loops between Twitter and FriendFeed; it won't take much to establish an entry point that is effectively identical from a Twitter user's perspective while also polulating several redundant stores with identical material.
The analysis predicts, and experiments on a sodic bentonite confirm, that substantially non-uniform solid and liquid profiles are observed during 'early stages' of the process, which evolve in a manner which is effectively identical to those observed during constant pressure filtration.
Because these are our primary focus in the present study, we allowed only waves 62 Myr or longer into their least-squares fit, and while ν is effectively identical for the two functions, the phases are very different.
The fact that PNN densities rapidly changed from being effectively identical at P8 (t-test, p = 0.138), to exhibiting significant differences at P10 (t-test, p<0.001) between the two groups, reinforces the notion that enrichment affects the rate, not the onset, of PNN formation.
