The phrase "alteration in the quantity" is correct and usable in written English.
It can be used in contexts where you are discussing changes or modifications to the amount of something, such as in scientific, economic, or statistical discussions.
Example: "The alteration in the quantity of the sample significantly affected the results of the experiment."
Alternatives: "change in the amount" or "modification in the quantity."
Alterations in the quantity of atmospheric greenhouse gases determines the amount of solar energy retained by the planet, leading to global warming or global cooling.
Alterations in the quantity and location of cubilin and megalin protein expression are observed in the yolk sac, neuroepithelium, and mesoderm of E9.5 RFC1 nullizygous mutants.
Alterations in the quantity or activity of these effector proteins could have a profound impact on recruitment to these receptors, perturb their downstream regulation, and have a detrimental effect on humoral immunity.
The main clinical manifestations of amelogenesis imperfecta (AI) include alteration in the quality and quantity of enamel.
Mechanical ventilation seems to occupy a major source in alteration in the quality and quantity of sleep among patients in intensive care.
To investigate whether the change in color observed between dark- and light grown BMS35S::R+35S::cellslls is due to an alteration in the quality or quantity of the pigments, anthocyanins were extracted and quantified.
To evaluate any alteration in the quality or quantity of mtDNA within HCC and the corresponding non-tumorous liver between female and male patients, we determined the copy number and mutations of mtDNA in the tumour tissues and in the corresponding non-tumorous liver tissues from both male and female HCC patients.
Alterations in the quality, quantity, and architecture of baseline and recovery sleep have been shown to occur during aging.
Virus infection was associated with small alterations in the quantities of pollen proteins detected by polyacrylamide gel electrophoresis, and in the patterns of allergens identified by Western blotting with IgE from grass pollen allergic subjects.
In previous studies we were able to demonstrate that fracture healing leads to a temporary alteration of the expression pattern as well as alteration of the quantity of the expressed growth factor in humans.
