(n.) The quality or state of being luminous; luminousness.
Example Sentences:
(1) The automated CellSoft semen analyzer identifies human spermatozoa on the basis of user-defined values for cell size and luminosity.
(2) In dim luminosity, the binocular system functioned better than the monocular system.
(3) In luminosity-type (H1) horizontal cells, the reversal potential of light responses was estimated at about 0 mV.
(4) In the latter the shift from a low to high light exposure increased NE excretion; in contrast, in migraineurs exposure to high luminosity resulted in a depression of NE excretion and an augmentation of E excretion.
(5) Test colors (14 interference filters, 4 Wratten filters, and white) were matched for human photopic luminosity and presented at luminance levels sufficient to induce vigorous responding from most cells.
(6) This level was the same as observed in luminosity-type and biphasic chromaticity-type cells, suggesting that the ionic mechanisms of synaptic transmission are common among horizontal cell types.
(7) In this analysis, we use the DMSP-OLS Stable Lights Dataset covering 1992-2012 to measure changes in luminosity in North Korea over time.
(8) These observations suggest a role of a GABAergic mechanism in the generation and transmission of luminosity responses in the trout pineal organ.
(9) Luminosity curves measured through a filter which artificially replaces the missing macular pigment is identical to the deuteranopic (Type II) curve.
(10) Extracellular Cl- activity and intracellular Cl- activities of luminosity and biphasic-chromaticity type horizontal cells were measured in freshly isolated, non-superfused roach retinae using double-barrelled Cl- -sensitive micro-electrodes.
(11) The effect of the shift from a low to a high luminosity of the environment on the urinary excretion of norepinephrine (NE) and epinephrine (E) was studied in migraineurs (26 cases) and controls (25 cases).
(12) Intracellular recordings from luminosity-type horizontal cells of the turtle retina were used to analyze the effects of steady and flickering background illumination on the size of their receptive fields.
(13) In high-Mg2+ medium, luminosity-type cone horizontal cells (L-cells) hyperpolarized and lost their photoresponses at a full membrane hyperpolarization of about -80 mV.
(14) A different rotation gave a photopic luminosity curve.
(15) In 1 subject with good visual acuity of both eyes, no optic atrophy was observed but there was impairment in the luminosity function (tested with white test object on white background) of the peripheral visual field.
(16) In electrophysiological experiments involving intracellular recording from horizontal cells in the isolated retina of the roach, light adaptation of the retina has been shown to result in potentiation both of (1) the depolarizing component of biphasic chromaticity type S-potentials, and (2) the temporal frequency transfer functions of photopic luminosity type horizontal cells.
(17) The mechanism causing such a change of test responses was studied in the luminosity-type cone horizontal cells.
(18) The broad background effect further indicates that all photoreceptors have an input and suggests that a luminosity cell, such as the internal horizontal cell, may be involved.
(19) We have constructed a computer model that attempts to predict which pairs of rhodopsins are most suitable for making various luminosity and chromaticity discriminations in green coastal water.
(20) Other biological aspects should be analysed in relation to luminosity.
Luminous
Definition:
(a.) Shining; emitting or reflecting light; brilliant; bright; as, the is a luminous body; a luminous color.
(a.) Illuminated; full of light; bright; as, many candles made the room luminous.
(a.) Enlightened; intelligent; also, clear; intelligible; as, a luminous mind.
Example Sentences:
(1) A specimen of a very early ovum, 4 to 6 days old, shown in the luminal form of imbedding before any hemorrhage has taken place, confirms that the luminal form of imbedding does occur.
(2) By increasing luminal air pressure from 10 to 20 cm H2O a significant reduction in GBF was observed.
(3) F pili could be seen on cells of the latter strain but not on those of the parental strain or the strain bearing pColVF54 luminal diameter r. Pili other than F pili were not seen on cells of the strains bearing pF54 in either form.
(4) In the area of the porta hepatis, there were many epithelial luminal structures in fibrous tissue with inflammatory infiltrates.
(5) At high luminances, the temporal, but not spatial, properties of this mechanism break down in a manner which had not been studied.Low-frequency inhibitory processThis process is manifest as a decrease in sensitivity from that of the simple excitatory process.
(6) Luminal and myoepithelial cells have been separated from normal adult human breast epithelium using fluorescence activated cell sorting.
(7) Conclusions derived from these studies are: 1) The model used is a valid means of studying in vivo luminal disappearance of PLP in the rat jejunum; 2) a major portion of the disappearance seems to involve hydrolysis by alkaline phosphatase; 3) a significant portion of this hydrolysis occurs intraluminally; and 4) a second mechanism of PLP disappearance, which is nonphosphatase-mediated, also appears operative and may represent absorption of the intact, phosphorylated vitamin.
(8) In man, well-controlled studies in selected groups of patients have already shown that a reduction of luminal stenosis may take place.
(9) These alterations include fenestration, widened intercellular junctions, increase in pinocytotic vesicles, and infolding of the luminal surface.
(10) Thresholds were measured for detecting perturbations in a regular lattice of dots by modulating local dot density, local dot luminance, or some combination of the two.
(11) Six abnormal colonoscopic appearances were documented, namely mucosal edema, ulcers, friability, punctate spots, erythematous areas and luminal exudate.
(12) In short-term studies, luminal biotin disappearance from rat ileum was about half that observed in the jejunum, whereas absorption by proximal colon was about 12% of that in the jejunum.
(13) The wave forms of the equiluminance stimulus onset responses were similar to ERGs evoked with luminance decrease and the stimulus offset PERGs were like ERGs elicited by luminance increase.
(14) The tuning curves for orientation of cortical cells maintain, to a first approximation, the same shape at the various levels of mean luminance.
(15) Ependymal cells developed luminal fronds that projected into the ventricle and the subpial glia displayed a very subtle gliosis in the form of thin multi-laminated processes.
(16) Intracellular Na+ due to passive Na+ inflow may activate cooperatively the Na(Cl) transport system at luminal plasma membrane and membrane of secretory granules in high levels of (Na+)in.
(17) The instrument is based on an established procedure for dark adaptation measurement in which the subject continuously adjusts the threshold luminance of a recurrently flashing stimulus.
(18) Both the spatial and the temporal characteristics of the negative-afterimage process are consistent with its being a component of local luminance adaptation.
(19) Therefore, we studied 122 consecutive clinically stable patients with angiographically defined CAD (greater than 75 per cent luminal stenosis) and a positive exercise test.
(20) We have isolated a mutant of the luminous bacterium Beneckea harveyi, which requires exogenous adenosine 3',5'-monophosphate (cyclic AMP) to synthesize luciferase and emit light.