Buffering of "metabolic" acid in tissues other than blood correlates closely with a change in extracellular bicarbonate concentration rather than with a change in extracellular pH. Of particular importance is the evidence for an absence of relation to change in pH. Questions are raised with respect to buffering mechanism, but simplification is offered for diagnosis. A clearer focus can be given...

In many digital image-processingapplications, which are implementedin field programmable gate arrays,the currently processed image's frames stored in external dynamic memory.The performance of such an application dependson the memoryspeed and necessaryrequests quantity during algorithm’sruntime. This is being optimized through arrays -implemented buffer memory usage.But there no common method f...

We motivate and present a definition of optimal buffering for streaming evaluation of XPath queries. We consider a large fragment of XPath that includes multiple (correlated) subqueries and reverse (up the document tree) axes. We describe a method for XPath evaluation with optimal buffering. We present the results of an experimental evaluation of our methods based on our implementation, which i...

BACKGROUND Human immunodeficiency virus (HIV) causes severe immunosuppression due to progressive decrease in the CD4 T lymphocyte cells during the course of the disease and this affects all the body systems including glandular secretions. A number of lesions affecting the salivary glands have been noted in HIV infection. The objective of this study was to evaluate the salivary pH and the buffer...

Feedback regulation in biochemical systems is fundamental to homeostasis, with failure causing disease or death. Recent work has found that cooperation between feedback and buffering—the use of reservoirs of molecules to maintain molecular concentrations—is often critical for biochemical regulation, and that buffering can act as a derivative or lead controller. However, buffering differs from d...

Objectives There are inconsistent data about the association between saliva properties, dental caries, and periodontal status. In this study, we tried to examine the association between dental caries and periodontal status with salivary viscosity, flow rate, pH, and buffering capacity in adults. Methods In the present cross-sectional study, 450 female teachers were randomly selected from scho...