The phrase "alteration is present" is correct and usable in written English.
It can be used in contexts where you want to indicate that a change or modification exists in a particular situation or document.
Example: "Upon reviewing the document, it was clear that alteration is present in several sections, which may affect the overall meaning."
Alternatives: "modification is evident" or "change is apparent."
Comparison of observed storm hydrographs showed that the degree of area serviced by storm drainage was a stronger determinant of storm runoff response than either impervious area or development type and that little distinction in hydrological response exists between urban and peri-urban developments of similar impervious cover when no significant hydraulic alteration is present.
This alteration is present in low frequency in Caucasian populations (4-6).
One might speculate that patients for whom a widespread gene expression alteration is present might benefit from mastectomy.
This alteration is present in about 20% of breast cancers and was found to be predictive of poor prognosis before the development of ERBB2 targeted drugs [ 4- 6].
This alteration is present as a high copy number amplification in three of the cell lines, 7p15-p13, 7q21, 7q31, 11q21, and 12q12, and losses in 2q35-qter, 4p16, 6q26-qter, 9q34 and 19q13.2-qter.
If alteration is present in two or more of the five microsatellite sequences, the cancer is classified as high (MSI-H); if only one is mutated, it is classified as low (MSI-L); and if no changes are present among the five microsatellites, the tumor is considered microsatellite stable (MSS) [ 29].
We determined that we were able to call a copy number change when the alteration was present in between 20% and 30% of the chromosomes that participated in the hybridization (data not shown).
The genetic alteration was present in a nontraslanted part of the exon.
This alteration was present in all cases, varying to 7 39% of cells/case.
This alteration was present in HDL isolated from our patients and could be indicative of such impairment.
Interestingly, we have recently evaluated if any alteration was present, in absence of p50, in the SVZ neurogenic region.
