(n.) The quality or state of being spherial; roundness; as, the sphericity of the planets, or of a drop of water.
Example Sentences:
(1) The authors have presented in two previous articles the graphic solutions resembling Tscherning ellipses, for spherical as well as for aspherical ophthalmic lenses free of astigmatism or power error.
(2) This lack of symmetry in shape and magnitude may be due to non-sphericity of the skull over the temporal region or to variations in conductivities of intervening tissues.
(3) As a consequence of deformation from spherical-to-cylindrical shape in the microvasculature, demands for increased surface membrane area leads to increases in surface membrane tension above critical levels for rupture, and the cancer cells are rapidly and lethally damaged.
(4) From the different shapes of the scattering curves of the native phosphofructokinase at pH 7.5 in the presence of 15 mM ATP and of the cross-linked tetramer or octamer, it can be inferred that the shapes of the protomers are different: in the presence of ATP the protomers are elongated, having an axial ratio of 1.8 to 2.0; the cross-linked state reveals a spherical protomer of radius 33.0 A, similar to that of the native enzyme at pH 7.5 in the presence of fructose 6-phosphate or fructose 1,6-bisphosphate.
(5) Equivalent viewing power (EVP), field of view, and working distance (WD) were calculated for 4 different magnifier equivalent powers, four magnifier-to-eye distances, and for uncorrected spherical ametropias varying from +20.00 to -20.00 D in 0.25 D steps.
(6) A sound source is commonly spherical, therefore solutions are found for the wave equation in spherical coordinates, giving a precise meaning to the 'azimuthal' and 'magnetic quantum number' analogy.
(7) One biliary stone showed cholesterol with spherical bodies of calcium carbonate and pigment.
(8) A simple method has been developed for fusing synaptic vesicles into spherical structures 20-50 micron in diameter.
(9) Anterior lenticonus is a rare condition, in which there is a conical or spherical protrusion of the anterior surface into the anterior chamber.
(10) These results suggest that the shapes of the two enzymes are more spherical in solution than the proposed structural model previously reported.
(11) Elementary spherical particles similar to those described in the mitochondria are found in isolated rat liver and spleen nuclear membranes.
(12) NF-L in 6 M-urea took the form of spherical particles with a diameter of about 12 nm.
(13) Later, melanocytes became spherical and had membrane bound, autophagosome-like compartments of pigment granules.
(14) Rotation time constants obtained from the dichroism decay are not consistent with a spherical shape, for either the holo- or core repressor.
(15) The mean spherical approximation (MSA) provides a simple and reliable method for computation of single ion activities.
(16) Neuron #1 contained large spherical electron-dense vesicles while neuron #2 contained smaller subspherical vesicles.
(17) The morphological unit of the regular array appeared to consist of four spherical subunits, each about 2 nm in diameter, which were arranged in a tetragonal pattern about 4.5 by 7.0 nm in dimension.
(18) These receptors were subdivided by their morphology in the next groups: pear-shaped receptors with capsule; capsuled spherical receptors located near vascular walls; ovoidal receptors with capsule and glomerular structure; simple or complex mace-shaped receptors without capsule.
(19) A simple closed-form solution is derived for a thin linearly elastic spherical model of the cornea.
(20) Levels of pregnenolone and progesterone in spherical pig blastocysts (near 4 and 15 microM respectively) exceeded respective levels in histotroph by about 400-fold.
Volume
Definition:
(n.) A roll; a scroll; a written document rolled up for keeping or for use, after the manner of the ancients.
(n.) Hence, a collection of printed sheets bound together, whether containing a single work, or a part of a work, or more than one work; a book; a tome; especially, that part of an extended work which is bound up together in one cover; as, a work in four volumes.
(n.) Anything of a rounded or swelling form resembling a roll; a turn; a convolution; a coil.
(n.) Dimensions; compass; space occupied, as measured by cubic units, that is, cubic inches, feet, yards, etc.; mass; bulk; as, the volume of an elephant's body; a volume of gas.
(n.) Amount, fullness, quantity, or caliber of voice or tone.
Example Sentences:
(1) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
(2) Carbon dioxide (CO2) levels, volumes, and temperatures of expired gas were measured from the tracheal and esophageal tubes.
(3) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.
(4) It was found that linear extrapolations of log k' versus ET(30) plots to the polarity of unmodified aqueous mobile phase gave a more reliable value of log k'w than linear regressions of log k' versus volume percent.
(5) We similarly evaluated the ability of other phospholipids to form stable foam at various concentrations and ethanol volume fractions and found: bovine brain sphingomyelin greater than dipalmitoyl 3-sn-phosphatidylcholine greater than egg sphingomyelin greater than egg lecithin greater than phosphatidylglycerol.
(6) Multiple overlapping thin 3D slab acquisition is presented as a magnitude contrast (time of flight) technique which combines advantages from multiple thin slice 2D and direct 3D volume acquisitions to obtain high-resolution cross-sectional images of vessel detail.
(7) By 24 hr, rough endoplasmic reticulum in thecal cells increased from 4.2 to 7% of cell volume, while the amount in granulosa cells increased from less than 3.5% to more than 10%; the quantity remained relatively constant in the theca but declined to prestimulation values in the granulosa layer.
(8) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
(9) No associations were found between sex, body-weight, smoking habits, age, urine volume or urine pH and the O-demethylation of codeine.
(10) At the same time the duodenum can be isolated from the stomach and maintained under constant stimulus by a continual infusion at regulated pressure, volume and temperature into the distal cannula.
(11) In the present study, respirometric quotients, the ratio of oral air volume expended to total volume expended, were obtained using separate but simultaneous productions of oral and nasal airflow.
(12) In the stage 24 chick embryo, a paced increase in heart rate reduces stroke volume, presumably by rate-dependent decrease in passive filling.
(13) It is concluded the decrease in cellular volume associated with substitution of serosal gluconate for Cl results in a loss of highly specific Ba2+-sensitive K+ conductance channels from the basolateral plasma membrane.
(14) In 3 cases the volume changes in the sinus were measured.
(15) In the cannulated group, significant decreases (P less than 0.05) in the area under the elimination curve (AUC), the volume of distribution at steady-state (Vdss) and the mean residence time (MRT) were observed.
(16) Plasma fibrinogen decreased by approximately 7% due to hemodilution caused by plasma volume expansion.
(17) It reduced serum AP levels, increased serum Ca levels, increased bone ash weight, epiphyseal and metaphyseal bone volume, with a concomitant reduction in epiphyseal and metaphyseal bone marrow volume.
(18) Doppler sample volume was extended to about 1.2 X 1.6 X 4.0 mm.
(19) The addition of a cerebral blood volume (CBV) compartment in the [18F]2-fluoro-2-deoxy-D-glucose (FDG) model produces estimates of local CBV simultaneously with glucose metabolic rates when kinetic FDG studies are performed.
(20) Sonographic images of the gallbladder enable satisfactory approximation of gallbladder volume using the sum-of-cylinders method.