(a.) Of the same kind of nature; consisting of similar parts, or of elements of the like nature; -- opposed to heterogeneous; as, homogeneous particles, elements, or principles; homogeneous bodies.
(a.) Possessing the same number of factors of a given kind; as, a homogeneous polynomial.
Example Sentences:
(1) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(2) The constitution of chromosomes in the two plasmacytomas remained remarkably stable in their homogeneous modal population.
(3) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(4) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
(5) Concentrations of alpha-lactalbumin and alpha s1-casein were measured in media and explant homogenates by radioimmunoassay, as an index of lactogenesis.
(6) Further subfractionation disclosed that the acetyltransferase activity was most enriched in the Golgi fraction, in which its specific activity was some ninefold greater than in the total homogenate.
(7) Gamma-irradiated splenic homogenates of armadillos infected with M. leprae proved sterile by conventional tests and media.
(8) A technique, using Nuclepore polycarbonate membrane filters as a containing medium for very small volumes of ionic standard solutions, to produce homogeneous ice standards is described.
(9) In vitro studies showed that BOF-A2 was rapidly degraded to EM-FU and CNDP in homogenates of the liver and small intestine of mice and rats, and in sera of mice, rats and human, and the conversion of EM-FU to 5-FU occurred only in the microsomal fraction of rat liver in the presence of NADPH.
(10) Plasma membranes were obtained from a homogeneous population of rabbit red blood cells at different maturation periods.
(11) The effect of diethylstilbestrol (DES) on the percent conversion of a 14C-progesterone (14C-P) substrate to 14C-testosterone (14C-T) when added to incubates fo rat testicular homogenates has been measured.
(12) While the reduced form of the "derived" polyphenolic compounds, generated during tissue homogenization, appeared to enhance dye binding with bovine serum albumin, their influence on the protein assay directly in crude homogenates was extremely diverse.
(13) Enzyme prepared in this manner was homogeneous according to electrophoresis on sodium dodecyl sulfate-polyacrylamide gels and immunoelectrophoresis using antiserum directed against it.
(14) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
(15) The inhibitory effect was not due to contaminating rT3 in the liver homogenates.
(16) The final preparation was homogeneous and a single polypeptide of 18,000 daltons as judged by SDS-polyacrylamide gel electrophoresis.
(17) This enzyme was purified to homogeneity and exhibited an apparent molecular weight of 36,000 on sodium dodecyl sulfate gels and 180,000 on a TSK G-3000SW column in the presence of Triton X-100.
(18) Computed tomography (CT) is the most sensitive radiologic study for detecting these tumors, which usually are small, round, sharply marginated, and of homogeneous soft tissue density.
(19) Thus, whereas CD3-associated molecules isolated from polyclonal CD3+WT31+ populations (expanded in IL 2 under the same culture conditions) appeared as diffuse bands, CD3-associated molecules isolated from CD3+WT31- populations displayed a homogeneous molecular mass.
(20) Although this operational classification does not produce etiologically homogeneous groups, it is believed to have pragmatic utility with respect to planning targeted surveillance and management strategies.
Isotropic
Definition:
(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.