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Browsing by Subject "Hydrogen-ion concentration."

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A comparative study of the change in diatom inferred ph of a staircase of lakes in the Algoma District, Northern Ontario /

Yung, Ying-kit. (Brock University, 1983-06-09)

Four staircase lakes occupying a single watershed located in the Algoma District, north of Lake Superior were chosen for this study. I examined the subfossil diatom assemblage in the top twenty centimeters of the surface ...
A comparison between diatom inferred ph changes and diatom populations in brownwater and clearwater lakes

Ciolfi, John. (Brock University, 1983-07-09)

The objective of this study was to determine whether clearwater and brownwater lakes differed in their rate of acidification as inferred by subfossil diatoms analyzed in recent downcore sediments. Differences between ...
The production of 4-adminobutyrate in response to treatments reducing cytosolic pH and the regulation of intracellular pH

Crawford, Lesley A. (Brock University, 1993-07-09)

GABA (4-aminobutyrate) is synthesized through the decarboxylation of LGlu- (L-Glu-+ H+ ---> GABA + C02), and compared to many free amino acids is present in high concentrations in plant cells. GABA levels rise rapidly ...
The regulation of oat coleoptile phosphoenolpyruvate carboxylase and malic enzyme by Hâ ½ and metabolites : kinetic evidence for and against a cytosolic pH-stat

Smith, Ceredwyn Elizabeth. (Brock University, 1979-07-09)

Phosphoenolpyruvate carboxylase (PEPC) and malic enzyme activities in soluble protein extracts of Avena coleoptiles were investigated to determine whether their kinetics were consistent with a role in cytosol pH regulation. ...
The utility of sedimentary diatoms as a measure of historical lake ph

Dixit, Sushil Sharan. (Brock University, 1983-07-09)

As a result of increased acid precipitation, the pH of a large number of Canadian Shield lakes has been falling. Prior to this study there was no documentation available to explain the history of lake acidification for ...

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Browsing by Subject "Hydrogen-ion concentration."

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