نتایج جستجو برای: isocapnic buffering phase
تعداد نتایج: 607405 فیلتر نتایج به سال:
Background & Aims: Pregnancy duration is crucial regarding dental problems. So the aim of this study was to determine the association between pregnancy period and PH, S. Mutans, and buffering capacity of saliva. Materials & Methods: This cross sectional study was done among 120 women who referred to the Gynecology hospital in Baku with an average of 24.1± 2.91 years...
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 buffe...
The abundance of neuropeptide Y (NPY)-, vasoactive intestinal polypeptide (VIP)-, substance P (SP)-, and calcitonin gene-related peptide (CGRP)-immunoreactive nerve fibers in the carotid body was examined in chronically hypercapnic hypoxic rats (10% O2 and 6-7% CO2 for 3 months), and the distribution and abundance of these four peptidergic fibers were compared with those of previously reported ...
When highly motivated normal subjects perform maximal isocapnic ventilation, a substantial fall in ventilation is observed during the first minute associated with slowing of the maximum relaxation rate (MRR) of the inspiratory muscles. This suggests that these muscles are excessively loaded, raising the possibility that overt contractile failure of the diaphragm contributes to the fall in venti...
During 8 h of either isocapnic or poikilocapnic hypoxia, there may be a rise in ventilation (VE) that cannot be rapidly reversed with a return to higher PO2 (L. S. G. E. Howard and P. A. Robbins. J. Appl. Physiol. 78:1098-1107, 1995). To investigate this further, three protocols were compared: 1) 8-h isocapnic hypoxia [end-tidal PCO2 (PETCO2) held at prestudy value, end-tidal PO2 (PETO2) = 55 T...
The problem of reassembling an object from its parts or fragments has never been addressed with a unified computational approach, which depends on the pure geometric form of the parts and not application-specific features. We propose a method for the automatic reconstruction of a model based on the geometry of its parts, which may be computergenerated models or range-scanned models. The matchin...
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