The phrase "absence of modification" is correct and usable in written English.
It can be used in contexts where you want to indicate that something remains unchanged or unaltered.
Example: "The results of the experiment showed an absence of modification in the chemical composition over time."
Alternatives: "lack of alteration" or "no changes made".
In the absence of modification, freshly precipitated metal oxo-hydroxides will agglomerate and aggregate and will start to age, whereby they condense and gradually increase their crystallinity.
However, ChIP experiments show the absence of modification of H3 Ser10 phosphorylation when MSK1 or its upstream MAPK are inhibited.
Regarding CH hearts, due to the absence of modification in RPP or [PCr] following oxygen decrease (figure 1D), modular regulation analysis reflected this absence of effect as illustrated in figure 2B.
Such an enhancement of the (A/P+AP/DV) class in the relative absence of modification of the D/V class indicates that the direction of rotation is genetically separable from fate choice.
Clinically stable disease was defined by the absence of modification of patient's symptoms and symptomatic treatment.
Thus, DNA-based sequences reflect the state of the RNA prior to or in the absence of modification.
This happened in the absence of modifications of the expression of moesin or ERβ (Fig. 4F), supporting the hypothesis that ERα drives the signaling of estradiol to moesin.
Although the absence of modifications in the P1 component is usually interpreted as a top-down modulation of stimulus processing at early stages of the neural pathway [4], [5], a recent study carefully designed to obtain C1 -the earliest component of the visual ERP- after training in a texture discrimination, found stronger amplitude for trained when compared to not-trained subjects.
The results obtained in this work indicate that Oat5 urinary excretion in the studied pathology is increased in the absence of modifications of traditional parameters to evaluate the renal function like urea in plasma, creatinine in plasma, proteins in urine, and AP activity in urine.
Although ATZ is able to elicit a satisfying biological response in vitro, even in absence of modifications and when roughness is excluded by mirror polishing [ 50], no significant difference between the anodized titanium surface and the hydrothermally treated ATZ surface was detected at the mRNA level.
Data (Table 1) indicated the absence of modifications on either i) total monomeric Abeta (quantified by western blot and 6E10 antibody), ii) soluble Abeta42 (quantified by ELISA using soluble extracts) or iii) Abeta plaque load (determined using either anti-Abeta42 or 6E10 antibodies).
