The phrase "and frequent changes in" is correct and usable in written English.
It can be used when discussing variations or modifications that occur regularly within a specific context or subject matter.
Example: "The project faced delays due to budget constraints and frequent changes in management."
Alternatives: "and regular alterations in" or "and ongoing modifications in".
First, individual patient variability mandates dynamic and frequent changes in drug selection and dose in response to changing clinical situations [ 2, 3].
It has had regular and frequent changes in procurement strategy.
After 1450 Ottoman-Mamlūk rivalry intensified, resulting in dynastic struggles and frequent changes in Dulkadir leadership.
The top ten problems cited by the NFIB's members include "uncertainty over economic conditions", "uncertainty over government actions" and "frequent changes in federal tax laws and rules" (see table).Business-backed groups such as the Campaign to Fix the Debt argue that, in the medium term, Congress needs to bring America's swelling debts under control.
The mapping of the rotation directions reveals multiple transition regimes with steep orientation gradients and frequent changes in sign.
Others work on the theoretical and/or the applied element of their vocational subjects, which are in turn related to fast and frequent changes in the labour market at technological, organisational and ultimately at job and skills requirements level.
Other factors include the lack of support from policy-makers and frequent changes of government in some of these countries, resulting in a lack of sustained policies.
Drug interactions represent a significant issue in elderly patients on warfarin because of polymedication and frequent changes (adding or stopping) in concomitant medications related to intercurrent acute illnesses.
Use of SMBG, structured in timing and frequency, also was associated with changes in clinician behavior, with earlier and more frequent changes in the prescription of diabetes medications (11– 11).
Therefore, in this work, the RMSAR of a vehicle dynamic system subjected to actual random road excitations is obtained so as to account for the effect of the actual PSD of road excitation and the frequent changes in vehicle velocity.
Interestingly, a recent randomized study comparing bolus infusion with continuous infusion of hydrocortisone in septic shock patients showed no differences in the mean blood glucose level, but more hyperglycemic events and more frequent changes in the insulin infusion rate were found in patients receiving bolus infusion of hydrocortisone [3].
