What's the difference between hydrometry and hydrostatics?
Hydrometry
Definition:
(n.) The art of determining the specific gravity of liquids, and thence the strength of spirituous liquors, saline solutions, etc.
(n.) The art or operation of measuring the velocity or discharge of running water, as in rivers, etc.
Example Sentences:
(1) In a children's Hospital, one-third of urine specimens will be of insufficient volume for standard hydrometry.
(2) Highly significant correlations were achieved between the TOBEC Phase value and fat-free mass (FFM) determined by densitometry (FFMd) and hydrometry (FFMdw) with values ranging from 0.713 to 0.981.
(3) The volume of 41 samples was inadequate for hydrometry.
(4) Body composition was predicted for 114 middle-aged and elderly individuals aged 35-90 y by using total-body electrical conductivity (TOBEC), densitometry, and hydrometry.
(5) Body composition measures included densitometry, hydrometry, bone mineral density of the one-third distal radius, and TOBEC.
(6) Fat-free mass (FFM) was calculated by using one-, two-, and three-compartment models: densitometry, FFMd; densitometry and hydrometry, FFMdw; and densitometry, hydrometry, and bone mineral density, FFMdwb.
(7) In urines not containing dissolved macromolecules, hydrometry, refractometry and osmolality reliably reflect the degree of concentration.
(8) Twelve moderately overweight women were confined to a metabolic unit for a period of 8 wk, 2-wk baseline and 6-wk reduction periods, during which changes in body composition were assessed by densitometry and hydrometry.
Hydrostatics
Definition:
(n.) The branch of science which relates to the pressure and equilibrium of nonelastic fluids, as water, mercury, etc.; the principles of statics applied to water and other liquids.
Example Sentences:
(1) This hydrostatic pressure may well be the driving force for creating channels for acid and pepsin to cross the mucus layer covering the mucosal surface.
(2) Hydrostatic occlusion of arteries with 12 kPa (90 mmHg) for 30 sec did not affect endothelial morphology and fibrinolytic activity, but after occlusion for 5 or 20 min the endothelium in both arteries and veins was severely damaged.
(3) Comparison of these theoretical results with variations in reabsorption observed in micropuncture studies makes it possible to place upper and lower bounds on the difference between interstitial oncotic and hydrostatic pressures in the renal cortex of the rat.
(4) The direct measurement of adiposity, using hydrostatic weighing and other techniques, is not feasible in studies involving young children or with large numbers of older subjects.
(5) It expresses the ratio between the partial pressure of the dissolved gas and the reduction of hydrostatic pressure during ascent (given as pressure gradient).
(6) Since slight hydrostatic pressure on the subepithelial side suffices to reverse the net transfer, it is assumed that in vivo the filtration pressure of the capillaries is the motive force for net transfer into the lumen.
(7) To test this hypothesis, experiments were performed on this protein to determine its behavior under increased hydrostatic pressure and the effect of its concentration on aqueous surface tension.
(8) To assess the role of hydrostatic pressure in edema formation, we compared lung permeability-surface area products (PS) in papaverine-treated lungs given either protamine alone or PAF + protamine and tested the effect of mechanical elevation of Pmv on protamine-induced lung edema.
(9) The coefficient characterizing flows generated by hydrostatic pressure is substantially larger than that characterizing osmotic flows.
(10) Overall, 87% of patients with hydrostatic edema but only 60% of patients with increased permeability edema were correctly identified.
(11) The relatively small increase in Qlym with LTD4 suggests that the increase in the transvascular fluid filtration rate is the result of a rise in the pulmonary capillary hydrostatic pressure.
(12) The antibody-induced mesangial cell lysis at day 1 resulted in a significant decrease in glomerular ultrafiltration coefficient, leading to reduction in single nephron glomerular filtration rate (SNGFR) in spite of a significant increase in both glomerular hydrostatic pressure and single nephron plasma flow (SNPF).
(13) Quantification of theoretical and observed values for Jw and Psuc strongly suggests that effects of pH on both the osmotic and hydrostatic flux reflect a modification of the paracellular path.
(14) The pulmonary lymph flow was elevated, initially from hydrostatic pressure and later from increased permeability.
(15) Distention of the antral sleeve by hydrostatic pressure (3-25cm H2O) caused stepwise and significant increase in gastrin release that was reversible.
(16) The hydrostatic pressure relations are presented as the most essential genetic factor in the development of ascites for hepatogenic reason.
(17) With increasing hydrostatic pressure, the turbidity of an alpha-crystallin solution increases exponentially to a plateau at about 6000-8000 psi; upon release of pressure, the samples slowly return to their original turbidity level.
(18) Interstitial fluid hydrostatic pressure (Pif) was measured with micropipettes during the acute edema generation that followed thermal skin injury in rats.
(19) These stimulatory effects of the hydrostatic pressure on DNA and GAG syntheses could be found when cultured chondrocytes were in a multilayer stage.
(20) Res., 39, 279-286] the pressure gradient of the endolymph between the cochlea and ES was calculated to be 71.5 mmHg at 38 degrees C. The contribution of the osmotic and hydrostatic pressure gradients of the endolymph to the longitudinal flow is discussed.