The phrase "absence or not" is correct and usable in written English.
It can be used to discuss the presence or lack of something, often in a context where both possibilities are being considered.
Example: "The results of the experiment were significant, showing a clear effect of the treatment, absence or not of the control group."
Alternatives: "whether present or absent" or "in the presence or absence".
He is expected to make a comeback to England in the coming weeks, returning to a club that has steadied of late, whether because of his absence or not.
In addition, we estimate models where the coefficients of the work absence variables are allowed to vary depending on whether individuals change firms when they re-enter employment after the work absence, or not.
Western analysis showed significant increase in polyubiquitinated proteins, especially at higher molecular weights, at 2 and 4 h (and less evident at 16 h) after MG132, in the absence or not of Tn.
Taken together, these results show that poly(A) site choice is different in the oxt6 mutant compared with the wild-type and complemented plants, and indicate that alternative poly(A) site choice is a consequence of the absence (or not) of AtCPSF30.
Sickness absence was measured as a dichotomised variable on having more than 90 days of sickness absence, or not, in 2002.
This analysis served to verify whether the participants used a specific strategy such as delaying movement onset to deal with the absence or not of visual information.
Absences for leave without pay for a Support Staff member which exceed a total of 22 working days per year (as measured from an employee's anniversary date) will result in a reduction of the sick leave balance at the rate of one day for every 22 working days of absence whether or not the days of absence were consecutive.
Any absence, prolonged or not, "changes the look of the team for sure," Collins said.
Students who leave the college without an approved leave of absence, or do not return after the leave has expired, will be given a withdrawal after the seventh week of the semester in which they fail to register.
Vaginal discharge was characterized by presence or absence and bloody or not.
The study of adrenal sex hormone receptors are of interest since their presence or absence indicate whether or not the ovarian hormone fluctuations occurring during the oestrous cycle could have a direct effect on adrenal gland function.
