The phrase "absence is necessary" is correct and usable in written English.
It can be used in contexts discussing the importance of absence for reflection, growth, or appreciation.
Example: "In relationships, sometimes absence is necessary to realize the value of the connection."
Alternatives: "absence is essential" or "absence is required".
Of course, this glaring absence is necessary to von Ziegesar's program of provocation.
According to rules set out by the European Aviation Safety Agency, pilots must remain at their "assigned station" throughout the flight, "unless absence is necessary for the performance of duties in connection with the operation or for physiological needs".
Despite the continuing progress in generating a comprehensive model of XCI, the lack of a single feature whose presence or absence is necessary for a gene to escape from XCI suggests that the variability that we observe is a reflection of multiple contributions to each gene or domain's activity (see Fig. 2E).
As Ripa explained to People, the absence was necessary to maintain her composure. .
Thus, when trying to predict the likelihood of progression from acute/subacute NP/LBP into chronicity and in turn future long-term sickness absence, it is necessary to address psychosocial factors.
If the absence of avarice is necessary to republican virtue, can you find any age or country in which republican virtue has existed?
Though Norman is devoted to his work, you also sense from him the absence of ego that is necessary to be part of the trial-and-error feature animation process.
Thus, we conclude that physostigmine and the resulting enhancement of cholinergic transmission promotes narcoleptic attacks in DKO mice and that the absence of orexin signaling is necessary for this effect.
Second, a relatively long follow-up in the absence of antiretroviral treatment is necessary to obtain informative data about the natural history of infection.
Though not alone sufficient for success, developing this shared understanding is necessary; its absence can undermine the coordination and prioritization needed across teams.
In order to determine how nutrients enter the embryo in the absence of a suspensor, it is necessary to study the microenvironment surrounding the developing embryo and to perform tracer experiments similar to the study for the nun orchid.
