The phrase "and fluctuating in the" is correct and usable in written English.
It can be used when describing something that is changing or varying within a certain context or scope.
Example: "The stock market has been unpredictable, with prices rising and fluctuating in the last few weeks."
Alternatives: "and varying within the" or "and oscillating in the".
Because situational experiences represent psychological states that, by definition, emerge from the interplay of both person- and context-bound features (Nezlek and Kuppens 2008), we assessed the extent to which continuous reports of situational uncertainty systematically differ between learners and fluctuate in the course of nine lessons.
Mean values of that parameter in plasma were higher than in the brain homogenate and fluctuated in the range from 0.33 to 0.43 mM Fe2+/mg protein.
Residue 39 has high mobility in the slowest mode yet acts as a hinge in the second slowest mode, where it interacts and fluctuates in the opposite direction with the flaps of the same monomer (Ozer et al. 2010).
Bloating is the sensation of trapped gas and tightness in the abdomen which is exacerbated by meals and fluctuates in intensity during the day.
These two hormones are produced by the ovary and fluctuate in concentration based on the menstrual cycle.
Hartl, Günther B., Franz Suchentrunk, Rudolf Willing & Renate Petznek: Allozyme heterozygosity and fluctuating asymmetry in the brown hare (Lepus europaeus): a test of the developmental homeostasis hypothesis.
Physiological plasma levels of 17 β-estradiol range from 118 to 914 pmol/L in premenopausal women and fluctuate in healthy women during the menstrual cycle [ 8].
The hurricane curved northward and fluctuated in intensity before recurving to the west and restrengthening, attaining Category 4 intensity for a second time as it neared Bermuda on September 14.
This type of activation is conscious and fluctuates in a controlled manner, on the basis of subjective decisions.
It then encountered water temperature anomalies, and fluctuated in strength.
