(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.
Radiation
Definition:
(n.) The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.
(n.) The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
Example Sentences:
(1) Recently, it has been shown that radiation therapy, alone or combined with chemotherapy, can be successful.
(2) Sixteen patients were operated on for lumbar pain and pain radiating into the sciatic nerve distribution.
(3) Because of the small number of patients reported in the world literature and lack of controlled studies, the treatment of small cell carcinoma of the larynx remains controversial; this retrospective analysis suggests that combination chemotherapy plus radiation offers the best chance for cure.
(4) Breast conserving surgery in patients with small tumors combined with radiation therapy has gained wide popularity due to better cosmetic results without significant changes in survival.
(5) A Monte Carlo simulation was performed to characterize the spatial and energy distribution of bremsstrahlung radiation from beta point sources important to radioimmunotherapy (RIT).
(6) While both inhibitors caused thermosensitization, they did not affect the time scale for the development of thermotolerance at 42 degrees C or after acute heating at 45 degrees C. The inhibitors of poly(ADP-ribosylation) radiosensitizers and thermosensitizers may be of use in the treatment of cancer using a combined modality of radiation and hyperthermia.
(7) 11 patients with a postoperative classification of stage D had additional external beam radiation to the pelvic and paraaortic lymph nodes with shielding of the implanted prostatic region.
(8) Data are shown for both mutagenesis and carcinogenesis, indicating that, in this respect, even the smallest average organ absorbed dose can be effective, particularly for high-LET radiation.
(9) Protein kinase C (PKC) is activated rapidly and transiently following ionizing radiation exposure and is postulated to activate downstream nuclear signal transducers.
(10) It was found that there was a substantial increase in mortality rates in the area under the jets where there was large noise radiation.
(11) This was treated with local radiation therapy consisting of 2700 rads administered in 15 fractions during a period of 28 days.
(12) This linkage information was used to design complementation tests to determine allelism with previously characterized complementation groups affecting sensitivity to radiation.
(13) There was good agreement between the survival of normally oxygenated cells in culture and bright cells from tumors and between hypoxic cells in culture and dim cells from tumors over a radiation dosage range of 2-5 Gray.
(14) At the completion of radiation therapy, nine patients had negative biopsies.
(15) It has a poor prognosis prior to the current combined treatment of surgical ablation, radiation to the surgical field, and chemotherapy for microscopic metastases.
(16) Radiation exposure resulted in further significant decrease of T-cell count (but not B cells) in the elderly.
(17) This study reviewed 148 patients who had received radiation for head and neck cancer.
(18) The significantly lower radiation sensitivity of FL-marker than that of infectivity indicates that only part of the genome is responsible for the FL-marker.
(19) Treatment modalities included: partial temporal bone resection, subtotal temporal bone resection, total temporal bone resection, radical mastoidectomy followed by radiation therapy, radiation therapy alone, and chemotherapy.
(20) In addition, a new dosage concepts has been introduced on the basis of the effective dose on the lines of the recommendations by the IRCP; as a result, the definitions of radiation protection areas and of dosage limit values had to be revised and reworded.