The phrase "a combination of variation" is correct and usable in written English.
It can be used when discussing the blending or mixing of different variations of something, such as styles, methods, or elements.
Example: "The artist's latest work is a combination of variation that showcases both traditional and modern techniques."
Alternatives: "a blend of variations" or "a mix of differences".
This variability can be attributed to a combination of variation in exposure levels over time and space.
The MCD increases can arise from a combination of variation in volume and decrease in surface area, particularly as seen with the strain ITG (Fig. 3E G).
The wide range in emergence dates in the spring results from a combination of variation in fertilization dates in the previous autumn and winter development rates during incubation in stream beds.
The spatio-temporal heterogeneity relevant to the RDH is therefore a combination of variation over time as well as variation over space, while the CVs reported above only measure the variation at one point in time.
In the ESCAPE study, which focuses on within-area contrasts in pollution, these models reflect a combination of variation in primary sulfate emissions and secondary sulfate formation (De Hoogh et al. 2013).
The variability is probably a combination of variation due to the triple transient transfection procedure, which results in variable protein expression and viral genome production for separate productions, and variation of the technique itself (see before).
The results from this study suggested a combination of variations in immobilization order may provide an alternative approach for the optimization of DNA hybridization and the further development for electrical detection of DNA.
We postulate it may have been a combination of variations in prey abundance, environmental stochasticity, including weather patterns and global climate change, habitat loss, and effects of fishing.
Undoubtedly, this technique can be applied to virtually any genetic variation or a combination of genetic variation assayed in the same tube.
These changes were measured as log ratios and were considered to come from a combination of technical variation and within-person variation, therefore: v a r log I 2 I 1 = v a r within person + v a r technical where I1 is the expression level at the first baseline and I2 is the expression level at the second baseline.
This signal was recorded thanks to a combination of compositional variation in time and rate variation in site such that slow-evolving sites more accurately reflect older temperatures, while fast-evolving sites partially erased this oldest signal in favour of subsequent adaptations to higher temperatures.
