The phrase "altered by additional" is correct and usable in written English.
It can be used when describing something that has been changed or modified by the inclusion of extra elements or factors.
Example: "The final report was altered by additional data collected during the study."
Alternatives: "modified by extra" or "changed by supplementary".
Since Zipf's law-like distributions are observed in a variety of phenomena, one may expect that this type of distribution is so robust that it is not altered by additional factors such as natural selection.
Moreover, associations were not materially altered by additional adjustment for social class (data not presented).
This cellular infiltration of the bladder with granulocytes and macrophages was not substantially altered by additional sensitization of the mice with PstS1-loaded particles (group 6, table 2).
Nonetheless, a biological response with a low background level may be much less altered by additional exposure than one with a high background because of to the cooperativity associated with a relatively higher baseline internal dose.
Hence, the AER response to telmisartan with or without HCT under long-term low-salt intake can still be blunted by NaCl supplementation, whereas the AER response under long-term high salt intake is not altered by additional NaCl.
These data show a major impact of APPL proteins on the DNA repair process conducted between 2 and 24 h, which is marginally altered by additional ATM inhibition at earlier time points than 24 h.
We found p27 levels were not altered by ACT1 (Additional file 1: Figure S5) suggesting that this is not the mechanism by which ACT1 inhibits proliferation.
If individuals vary in their payoffs despite being of the same type, the results are altered by this additional source of randomness [ 34, 35].
The transcript profiles from a total of 11 studies carried out at 5 institutions were used to identify genes altered by fasting (Additional file 8).
