(1) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
(2) With this system, a brain region loaded with fura-2 was illuminated by a rotating disc bearing three different interference filters of 340, 360 and 380 nm at a rate of 600 rpm.
(3) Naloxone injection into those rats exposed to constant illumination significantly increased hypothalamic levels of beta-endorphin compared to saline injected controls.
(4) These data show an extra-hepatic lipolytic effect of glucagon in vivo, but do not illuminate the significance of this effect in the intact animal.
(5) The illumination of the F1-ATPase complexes with NAB-ADP or NAB-GDP leads to the covalent binding of one nucleotide analogue molecule to the enzyme and to the irreversible inactivation of F1-ATPase.
(6) Both eosin derivatives, however, inactivate acetylcholinesterase upon illumination of air-equilibrated samples of hemoglobin-free labeled ghosts.
(7) This 520-nm change can be used for the continuous measurement of pH changes in thylakoids during steady-state illumination.
(8) Photosynthetic activity of the cells was checked by placing the cell evenly illuminated in a (14)CO(2) atmosphere.
(9) The visual processes revealed in these experiments are considered in terms of inferred illumination and surface reflectances of objects in natural scenes.
(10) The second triplet, which was stable in the dark at 4.2 K following illumination, was assigned to the radical pair Donor+I-.
(11) Superoxide anion (O2.-) was photogenerated upon illumination of riboflavin in fluorescent light.
(12) One of these has high sporulation-inducing activity after illumination in vitro.
(13) Upon illumination, a dark-adapted photosynthetic sample shows time-dependent changes in chlorophyll (Chl) a fluorescence yield, known as the Kautsky phenomenon or the OIDPS transient.
(14) The effects of continuous illumination, adrenalectomy and induction or inhibition of microsomal enzymes on antipyretic action of phenacetin were evaluated.
(15) Out of the seabird whoops and thrashing drumming of the intro to Endangered Species come guitar-sax exchanges that sound like Prime Time’s seething fusion soundscapes made illuminatingly clearer.
(16) As the differential diagnosis between Crohn's disease and appendicitis is difficult and the surgical approach to the appendix in the presence of Crohn's disease is controversial, we illuminate some practical points in the preoperative evaluation of these patients and deal with the question of whether appendectomy should be performed in these patients.
(17) superficial or interstitial illumination) and the optical interaction coefficients of the irradiated tissue.
(18) Activity was stimulated by the change in illumination levels at dawn and dusk.
(19) On prolonged UV-A illumination the ESR spectrum of 16-doxylstearic acid in dimyristoyl phosphatidylcholine vesicles loaded with 8-methoxypsoralen changed dramatically as a second broad component gradually appeared.
(20) All plasma porphyrins could be protected for several days from similar photodegradation by performing all blood drawing, processing, and assay procedures under ordinary red-incandescent illumination, and by storage in the dark.
Luminosity
Definition:
(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.