The phrase "acidity by" is not a complete or grammatically correct part of a sentence.
It is possible that it could be used in a longer sentence, such as "The acidity by the river was due to the high levels of pollution," but even in this case, it would be more correct to use "caused by" instead of "by." In general, it is more common and grammatically correct to use the word "of" after the word "acidity," as in "The acidity of the drink was too high."
A reagent like DCA fits this criterion because it can reduce extracellular tumor acidity by inhibiting lactic acid production.
A reagent like DCA fits this criterion because it can reduce extracellular tumour acidity by inhibiting lactic acid production.
For instance, the recent combination of genetic and molecular approaches has demonstrated the crucial role of this enzyme in controlling organic acid content in ripe tomato fruit (Morgan et al. 2013), whereas in citrus fruit it was possible to manipulate the fruit acidity by changes in amino acid metabolism (Degu et al. 2011).
Nitrogen contributes significantly to ecosystem acidity by direct deposition of nitric acid, by oxidation of ammonium, and by leaching of cations, especially calcium, from soils.
Soils display their acidity by a decrease in content of acid-soluble minerals (for example, feldspars or clay minerals) and an increase in insoluble minerals (iron and aluminum oxides).
The samples were characterised with respect to chemical composition, surface area, acidity by temperature-programmed desorption of ammonia, nature of acid sites by infrared spectroscopy of adsorbed pyridine and catalytic activity at 370°C in the dealkylation of cumene.
Their acidities (by TPD of pyridine) and their catalytic activities in the isomerization of n-hexane are compared.
These materials were thoroughly characterized by EXAFS, TPR, acidity measurements by H/D isotope exchange and ethane hydrogenolysis.
The acidity caused by CO2 in methanol was supported by diminished degradation after a nitrogen purging or after neutralizing the collected fractions with a base.
However, the acidity released by these oxidation reactions would be offset by carbonate buffering reactions.
This phenomenon would result in prevention of pathologic nocturnal esophageal reflux by a relatively small decrease in gastric acidity accompanied by a decrease in intragastric volume.
