The phrase "a required basis" is correct and usable in written English.
It can be used when discussing something that is necessary or essential as a foundation or starting point for a particular action or decision.
Example: "In order to proceed with the project, we need to establish a required basis for our research and development efforts."
Alternatives: "an essential foundation" or "a necessary groundwork".
In Scotland the 10 day review is always provided as a home visit by the Health Visitor but GPs can potentially be involved in the provision of any of the other reviews, either on a routine basis or on an 'as required' basis if requested by the HV.
Damiana seems to exert its libido-enhancing effects quickly after ingestion, making it ideal for use on an 'as required' basis.
A senior Indian official also told Reuters this weekend that the Boeing 777 might not have been detected by installations on the Andaman and Nicobar islands because the radars might have been switched off, adding: "We operate on an 'as required' basis".
A common example in this category related to medication for pain or indigestion prescribed on an 'as required' basis.
We categorised PPI contributors as having a responsive role if descriptions of their input were largely confined or targeted towards a particular aspects of the application or trial, or if PPI contributions were on an 'as required' basis.
Others call for using "best management practices" on a voluntary or required basis without the enforcement and education component.
It is these trials that provide evidence of the survival of the probiotic strain in vivo and provide the required basis for a credible claim.
It minimizes the reconstruction of state vectors in a least squares sense with the minimum required basis vectors for constructing the reduced subspace.
In this context, redundant dictionary means that the dictionary is overcomplete and contains much more than the minimum required basis functions, that is, a collection of nonorthogonal basis functions, that is, much larger than the minimum required basis functions to span the given signal space.
Even the securities industry now sees enactment of required basis reporting as inevitable.
