نتایج جستجو برای: buffering capacity
تعداد نتایج: 284313 فیلتر نتایج به سال:
Results: There was a reduction in salivary pH and buffering capacity and an increase in the concentration of calcium ions in the experimental group (p<0.05); there was also an increase in glucose, amylase and protein concentrations in the saliva of the Experimental Group, but the differences were insignificant. There was insignificant correlation between calcium ion concentration and salivary f...
Negative feedback from horizontal cells to cone photoreceptors is regarded as the critical pathway for the formation of the antagonistic surround of retinal neurons, yet the mechanism by which horizontal cells accomplish negative feedback has been difficult to determine. Recent evidence suggests that feedback uses a novel, non-GABAergic pathway that directly modulates the calcium current in con...
Buffering capacity and membrane H+ conductance were examined in seven Gram-negative species: Aquaspirillum serpens, Pseudomonas aeruginosa, Alcaligenes faecalis, Escherichia coli, Salmonella typhimurium, Proteus mirabilis and Aeromonas hydrophila. All strains of Enterobacteriaceae studied here showed a decrease in both parameters as the external pH increased, over the pH range studied. The othe...
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