(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.
Radiance
Definition:
(n.) Alt. of Radiancy
Example Sentences:
(1) Response saturation of blue-sensitive cone pathways was studied by measuring increment thresholds for violet test flashes on flashed violet fields in the presence of a steady yellow "auxiliary" field of constant radiance.
(2) The first study determined absolute thresholds for "white" and monochromatic lights by establishing a discrimination between lights of various radiances and a dark key.
(3) The radiance of the annulus required to make the central area (spot and ring) appear uniformly black was measured for different wavelengths (440-660 nm) of the annulus.
(4) Mayor Boris Johnson, whose default setting has been relentless and sometimes improbable cheerleading in the face of serious concerns and minor niggles, promised with typical restraint that as the flame "spreads through the city its radiance will dispel any last clouds of dankness and anxiety that may hover over some parts of the media".
(5) The minimal radiance at which phototherapy begins to be effective for neonatal hyperbilirubinemia was also determined.
(6) The effects of chromatic adaptation on the opponent interactions of cone mechanisms were investigated by using increment-threshold spectral-sensitivity (ITSS) functions and threshold-versus-radiance (TVR) curves in rhesus monkey subjects.
(7) This may in part be related to the intrusion of the blue-sensitive mechanism at the upper radiance range.
(8) The obtained constancy ratios were attributed to the role of distance estimation in the determination of colour appearance, an effect that is presumably masked under normal viewing conditions, where long viewpaths are necessary to produce significant radiance changes.
(9) All the cone mechanisms were in compliance of Ricco's law, summing target radiance linearly over a certain range of target diameters with an average slope of 2.4.
(10) "If you look at it as an exhibition, there is a lot of radiance and luminosity and jewel-like colours," she say.
(11) A small patch of achromatic light viewed within a large achromatic surround appears gray or black when the radiance of the surround is well above that of the patch.
(12) A study is reported of colour appearance in situations where the spectral radiance of an object changes significantly with viewing distance.
(13) Many times over the past decade and in the middle of making other films – All or Nothing , Happy-Go-Lucky , Another Year – Mike Leigh and his cinematographer, Dick Pope, would look at the sky and then at one another and say: “Oh God, we must make our Turner film.” A particular light, a moment’s radiance, a sunset – any of these might set them off.
(14) A rapid clinical protocol to assess the radiance response function of the SWS cone ERG is described.
(15) When changing the radiance ratio 630 nm-531 nm of the stimulus, the normal subject exhibited a P-ERG to all stimuli with only a relative amplitude minimum at a distinct radiance ratio, whereas the color-deficient observers failed to show a P-ERG at some color contrast 630 nm-531 nm, the radiance ratio of which was different in the protan and deutan.
(16) The responses of the phasic ganglion cells go through a minimum at relative radiances very similar to that predicted from the V lambda function.
(17) The diffusion length was also determined from radiance versus depth measurements.
(18) Biological weighting functions were used to calculate the blue-light radiance and the weighted UV irradiance.
(19) Considering a negative phototaxis as a stimulus reaction to narrow - or wideband monochromatic radiance of varying ranges of wavelengths and different irradiance it was established that both unfed and engorged I. and II.
(20) Different color sensations were generated by two areas in a complex scene, even though both areas sent to the eye the same 656-nanometer radiance that excited the long-wave cones and excited only the rods.