(a.) Having the same properties in all directions; specifically, equally elastic in all directions.
Example Sentences:
(1) The myocardium was assumed to be composed of a nonlinear viscoelastic, inhomogeneous, anisotropic (transversely isotropic) and incompressible material operating under adiabatic and isothermal conditions.
(2) Deviations from isotropic motion observed for the non-aromatic moieties are discussed.
(3) This systematic deviation in the motional parameters appears to be due to the use of a single-site isotropic model for the atomic fluctuations.
(4) A phosphate-containing spin label demonstrated strong an isotropic motion in the lipid-water system above the phase transition but not below.
(5) Ultracentrifugation for determination of isotropic concentrations of fatty acids is widely used.
(6) This exponential mixture rule is proposed for the study of the mechanical properties of isotropic dental composites.
(7) The human tension-area relation for isotropic loading could be described by an exponential function and was found to shift significantly to the left of the canine.
(8) As in the isotropic case, fundamental boundary-layer conditions are introduced containing only one transverse or normal mass or stiffness.
(9) In preparations stained by congo-rot and covered with arabic gumm amyloid deposits reveal intensive, positive bi refringement, collagen is isotrop, or shows a mild bi refringement.
(10) The changes in the integral of the extracellular action potentials (EAPs) generated by an infinite homogeneous fibre in an infinite homogeneous and isotropic volume conductor were studied at different radial distances (yo) from the fibre axis, depending on the propagation velocity (v), duration (Tin) and asymmetry of the intracellular action potential (IAP).
(11) A 630 nanometer wavelength of light was delivered through a quartz-optical fiber with either a regular flat end for focal illumination or a bulb-type end which produced an isotropic light pattern.
(12) An equation describing the isotropical dissolution of soluble nondisintegrating disks was developed.
(13) It was found that the correlation times of the protonated carbons were equal within experimental error, and this equality of correlation times of different sites of the molecule suggests strongly isotropic random motion of the molecule.
(14) The three-dimensional structure of the stalk porin has been determined to an almost isotropic resolution of 1.7 nm.
(15) They suggest that for a realistic situation translational diffusion should be about four times faster in relation to rotational diffusion than in the isotropic case.
(16) In strong contrast, the 31P-NMR spectra of the extracted lipids are characteristic for the hexagonal HII phase and an isotropic phase.
(17) The changes of T1 and T2 were treated based on the assumption of two types of molecular motions: (1) isotropic "slow" motions with times approximately greater than 10(-8) s (including the rotation of a molecule as a whole) and (2) anisotropic "fast" motions with times approximately less than 10(-10) s. Experimental data show an essential increase of the scale of intramolecular mobility for the majority of side groups upon transition of the protein from the native to the molten globule state.
(18) The photoretinoscope, which is a novel modification of an isotropic photorefractor, is also described.
(19) The isotropically shifted resonances in both the oxidized and reduced forms show a complex pH dependence due to the presence of three ionizable residues (Glu-44, His-20, and His-42).
(20) Using glass and low temperature isotropic (LTI) carbon adsorbents, i.e., a known procoagulant and a relevant biomaterial, respectively, the adsorption properties and the potential surface-induced conformational changes of high-purity native human fibrinogen (clottability greater than or equal to 92%) were studied, at 25 degrees C, by 3 independent methods.
Isotropy
Definition:
(n.) Uniformity of physical properties in all directions in a body; absence of all kinds of polarity; specifically, equal elasticity in all directions.
Example Sentences:
(1) It has been demonstrated the reorganization of structure of locus coeruleus in the animals treated intracisternally with 300 micrograms of 6-hydroxydopamine (6-OHDA) which selectively causes the lesion in catecholaminergic system using the method of quantitative estimation of the degree of uniformity and isotropy of structures.
(2) In our previous studies we assumed isotropy of the myocardium and linear ventricular gradient.
(3) Scaling (i) the three-blob alignment results with estimates of the cortical magnification factor and (ii) the two-blob separation discrimination results with their corresponding neural blur parameter shows an impressive isotropy and blur scale-invariance for the mechanisms mediating differential spatial displacement discrimination across the visual field.
(4) Measurements on the polished surface lead to numerical values of a number of parameters characteristic of the surface patterns, such as the relative surface occupied by bone, the mean widths of the trabecular sections, the mean path lengths through the bone or marrow, and a number representing the departure from isotropy of the pattern.
(5) These results support the validity of our previous cardiac model in which we assumed isotropy of the myocardium and the homogenous ventricular gradient.
(6) The calculated deformation field varies smoothly over space and time and is not constrained by assumptions of isotropy or piecewise homogeneity.
(7) For all seven specimens, the model of transverse isotropy provided a better fit of the data than that of isotropy.
(8) Quality is compared also in terms of isotropy of the texture and the appropriate blue-noise characteristics in areas of uniform gray tone.
(9) The thermodynamic restrictions on the elastic coefficients of linear orthotropic elasticity and linear transversely isotropy elasticity are recorded and it is shown that previously reported data for the elastic orthotropic constants of bone satisfy these thermodynamic restrictions.
(10) Results indicate that while the elastic behavior of the aortic wall is globally anisotropic, there exists a state of deformation at which the vessel displays incremental isotropy.
(11) It was also shown that this upper-lower temporal anisotropy (and left-right isotropy) is paralleled by a similar disparity-dependent upper-lower anistropy (and left-right isotropy) in spatial resolution.
(12) It is shown that it is necessary to give up the usual assumption of homogeneity and isotropy in the extracellular medium.
(13) The maximum value of the tangent of the phase angle (tan Delta(max)) is known to be a function of the isotropy of the depolarizing motions.
(14) The annulus fibrosus is modelled either as nonhomogeneous fibre reinforced composite or alternatively as homogeneous orthotropic with transverse isotropy.
(15) Furthermore, the visceral pleura studied appears to be inelastic and to exhibit in-plane isotropy.
(16) The improvements we make on Vito's model are: (i) Vito assumed that the elastic materials which constitute the model 'heart' and 'pericardium' are isotropic; we relax this assumption to that of transverse-isotropy.
(17) Considering cartilage to be an elastic material with homogeneity and isotropy, we calculated elastic moduli for femoral, tibial, and patellar cartilages using instant and 15-s deformations after load application.
(18) By modeling the substance as a series of lines oriented in particular directions, it is possible to arrive at either a "phase distribution" that expresses the degree of orientation distributed over a range of angles or a series of "primary orientations" that express the degree of orientation at a select number of angles, with an additional measure of the degree of isotropy.
(19) Esploratory studies suggested a similar up-down anisotropy and left-right isotropy in spatial resolution.