(n.) A reflection of a milky or pearly light from the interior of a mineral, as in the moonstone; the state or quality of being opalescent.
Example Sentences:
(1) Among both exposed and non-exposed aged over 45, there were no significant differences with regard to the characteristics of lens opacities--prevalence (19 in the 21 exposed; 10 in the 16 non-exposed), distribution of the location, and importance and type (opalescence or discontinuous opacities).
(2) The severity of nuclear opalescence (NO), cortical (C) and posterior subcapular cataract (P) was graded in a masked fashion using the LOCS II standards.
(3) The rate of this reaction can be estimated roughly from the initial rate (Vo) of the accompanying turbidity increase ("super-opalescence") of the acto-S-1 solution.
(4) This may indicate that there is considerable variation in inheritance patterns for hereditary opalescent dentine and that this trait does not always exhibit 100 percent penetrance.
(5) Furthermore, selenite induced the gradual development of opalescence and the oxidation of sulfhydryl in the lens protein solution.
(6) At pH 1-7 the alpha-particles dissociated into their constituent beta-particles with a consequent decrease in the opalescence of the solution.
(7) A family is described in which two females are more severely affected by hereditary opalescent dentine than the males.
(8) Prednisolone-induced aggregates result in an opalescence in the crystallins solution which is reversed by the addition of dithiothreitol.
(9) Residual Triton X-100 was removed from the opalescent vesicle suspension by sucrose density gradient centrifugation and subsequent dialysis.
(10) Shortcomings in previous attempts have been corrected by objectively aligning a "blind" eye with the center of a translucent opalescent screen.
(11) A potential of 100 V was applied for 12 hours, then raised to 200 V for another 12 hours, and finally to 300 V until opalescence appeared at the bottom of the tube.
(12) Colonies of C. perfringens on LLA had typical opalescent zones, a distinctive feature that can aid in presumptive identification.
(13) The presence of the regulatory light chain did not affect hyper-opalescence (or super-opalescence), since there were no significant differences between papain S-1 and chymotryptic S-1 with respect to these phenomena.
(14) We conclude that the most likely mechanism responsible for the zones is a light-scattering effect caused by antibodies attached to the viral surface and that the quality of the opalescence to some extent seems to be dependent on the Fc-fragment.
(15) High activity of MPO was found for retina and lens of healthy men and elderly people with lens opalescence.
(16) The oviposition-stimulating factor was localized in the opalescent gland of the male accessory gland and was transferred to the female via the spermatophore during copulation.
(17) Adjacent filaments in the bundles had a distance of approximately 180 A. Hyper-opalescence occurred at r approximately equal to 1 when KCOOCH3 was used instead of KCl.
(18) Impairment of catalytic efficiency can only be documented in opalescent test solutions in which the insecticides are present in excess of their solubility limit.
(19) We have found that after the initial rise in scattering, there is a further gradual increase in scattering (we call it "super-opalescence").
(20) A fraction possibly corresponding to VHDL (very high density lipoproteins, 77% protein, 23% lipid) was also detected but appeared contaminated by a protein-rich opalescent material.
Polychromatic
Definition:
(a.) Showing a variety, or a change, of colors.
Example Sentences:
(1) In the present study, 2,000 polychromatic erythrocytes were assessed per animal.
(2) It appears that the recognition of grooved nuclei among tumor cells is a valuable diagnostic feature of PTC in cytologic material stained with polychromatic Papanicolaou stain.
(3) 14 flavonoids, including flavone and flavonol derivatives, were tested for their anticlastogenic effect against induction of micronuclei by benzo[a]pyrene in polychromatic erythrocytes of mice.
(4) This method makes use of crystallographic phases determined from measurements made at several wavelengths and has recently been made technically feasible through the use of intense, polychromatic synchrotron radiation together with accurate data collection from multiwire electronic area detectors.
(5) A significant increase in micronucleated polychromatic erythrocytes in the peripheral blood was observed in male mice in one experiment.
(6) The frequency of induction of micronucleated polychromatic erythrocytes by benzene thus depends on the strain of mouse used.
(7) Butylate was inactive in bone marrow, vernolate caused a marginal increase in the incidence of micronucleated polychromatic erythrocytes only at a high toxic dose level.
(8) Polychromatic silver-stained peptide maps of purified R-II subunits indicated that peptides generated from both rat ovarian R-II52 and R-II51 were similar (if not identical) to the peptides of the neural form, R-II52, purified from rat brain.
(9) Fetal peripheral blood and maternal bone marrow cells were examined at 36 h for the frequency of micronucleated polychromatic erythrocytes.
(10) The negative binomial probability generating function was used to show that six or more micronuclei per 1000 polychromatic cells from one treated animal would be significant for our laboratory, methodology and strain of mouse, provided that concurrent negative control data conformed with historic values.
(11) The ratios of polychromatic to normochromatic erythrocytes at the 24 h sampling time were lower for the treated than the control animals.
(12) In those with polychromatic blocked-in tattoos of professional origin, hypertrophic scars occurred and the overall result was unsatisfactory.
(13) The slight increase in the micronucleated polychromatic erythrocytes without affecting DNA synthesis suggests an effect of usnic acid on spindle apparatus.
(14) The lethal effect of polychromatic near-UV light (325-400 nm) on Haemophilus influenzae was 8 times higher under aerobic than anaerobic irradiation.
(15) As a means of correcting for many potential interferences, polychromatic analysis offers an effective alternative to either sample pretreatment or separate blank determinations.
(16) Khat extract significantly increased the frequency of micronucleated polychromatic erythrocytes, induced bone marrow depression and reduced the mitotic index of the somatic cells.
(17) Histochemical, light, and electron microscopic examinations revealed that all-trans-retinoic acid first decreased the numbers of polychromatic erythroblasts and then increased them.
(18) Rats were given by gavage a single or two successive doses equal to one-half the corresponding LD50, killed at different times after treatment, and examined for the following end points: the frequency of both micronucleated polychromatic erythrocytes in the bone marrow and micronucleated hepatocytes (after partial hepatectomy); the in vivo-in vitro induction of DNA fragmentation, as measured by the alkaline elution technique, and of unscheduled DNA synthesis, as measured by autoradiography, in hepatocyte primary cultures.
(19) Healing of cancellous bone grafts taken from the iliac crest which were implanted in alveolar bone pockets were followed with polychromatic sequence marking in animal experiments using beagle dogs.
(20) Accommodation is more accurate with polychromatic stimuli than with narrowband or monochromatic stimuli.