The phrase "a period of variable" is not correct in written English as it is incomplete and lacks clarity.
It could be used in contexts discussing timeframes or conditions that change, but it needs additional context to be meaningful.
Example: "During a period of variable weather, we must be prepared for sudden changes in temperature."
Alternatives: "a phase of variability" or "a time of fluctuation."
(4) Intermolt is a period of variable duration, from a few days in small forms to a year or more in some of the large forms.
These changes in the fluvial network, which occurred during a period of variable climate conditions, strongly influenced the early Etruscan culture (7th 5th century BC) in terms of human settlement and society behaviour.
Follow-up was a period of variable length 30 days to 3 years, following (and including) the index date until the earlier of disenrollment, August 31 , 2012 or 36 months after the index date.
In most simulations (except those with the minimal values of e, H, and n), cholera outbreak was followed by a period of variable length during which infection incidence remained ca. constant.
As for VEGF, a relatively short time scale would not affect the coatings combined with the steel substrate, but a prolonged period of variable temperature environment may affect the material's coating properties.
The clinical disease presentation is preceded by an asymptomatic period of variable duration.
This precise study is necessary, since the results of resistance measurement during a period of time are variable and depend on different factors.
The network condition exhibits the consecutive changes in values over a period of time, where variables may be predicted from previous value.
Between episodes of ulceration, there is usually an ulcer-free period of variable length.
The idea is that with sporadic availability of data, individuals and labs may have a need to, over a period of time, process greatly variable amounts of data.
This method was utilised to associate deaths within a period of 1-year postdischarge with variable values at discharge, and in-hospital mortality with variable values at admission.
