(n.) A design or draught which has been divided into squares, in order to reproduce it in other dimensions.
Example Sentences:
(1) The number of fields are examined using an indexed-squares graticule in 10 different areas of the brain.
(2) An eye-piece graticule was used to measure the proportion of bone-surfaces covered with osteoid, and there was good correlation between the results obtained by these two methods.
(3) In view of the limitations of linear measurement and the high cost and complexity of computer aided microscopy, we propose that a simple stereological technique using an eyepiece graticule is the method of choice in the quantitative assessment of mucosal architecture in jejunal biopsy specimens.
(4) Cylindrical projections convert the coordinate lines into rectangular graticules for isopotential maps of sensory evoked responses.
(5) Additional features are: a graticule for calibration, a facility to display alphanumeric characters, and an option for automated uninterrupted viewing of the visual image.
(6) The intimal thickness was measured at the anastomoses and in the mid-graft region using an eye-piece graticule set at right angles to the graft internal elastic lamina.
(7) The thickness of the fibrous articular layer, undifferentiated germinal mesenchyme layer and the hyperplastic cartilage layer were measured using an eyepiece graticule and the presence and frequency of islands of cartilage in the subchondral bone were noted.
(8) The Weibel graticule was found to be useful in assessing the severity of histological changes and in following changes after treatment.
(9) (4) In large collections of neurones, e.g., in the thalamus, three methods are available: (a) the nearest neighbour method; (b) a conventional squared graticule count, and (c) a count of cells intersected by a line probe as in Haug's (1972) technique (fig.
(10) Inter- and intra-observer variation in measuring the depth of invasion of malignant melanomas was assessed using three different techniques: eye-piece graticule, stage Vernier, and projection image analysis.
(11) The degree of villous atrophy was estimated with a Weibel eyepiece graticule, and this correlated strongly with the degree of crypt hyperplasia, which was assessed by deriving the mean number of enterocytes in the crypts.
(12) Graticules consisting of concentric circles and radial lines are projected onto the subject's fundus, providing a pattern that the examiner can use to determine the exact location to be stimulated in the fundus.
(13) The point-counting graticules commonly used, with 25 points, are inadequate with tissue proportions below 10%.
(14) A method of measuring pupillary diameter in the dog using a Kowa RC-2 fundus camera, to which an eyepiece graticule had been fitted, is described.
(15) Morphometric studies of the epididymal region of three avian species (Gallus domesticus, Coturnix coturnix japonica, Japanese quail, and Numida meleagris, guinea-fowl) were performed using a stereological compensating eyepiece graticule.
(16) Subchondral bone and articular cartilage histomorphometry was carried out in three different regions of the specimens (central, middle, and peripheral regions) using an image-analyzing system and an eyepiece graticule.
(17) Pupil diameter was measured either directly by reading off from the calibrated graticule or from photographs.
(18) Weibel graticule measurements appear to be a useful adjunct to the subjective assessment of villus atrophy.
(19) Sections were quantitated using an eye-piece graticule and all values were expressed as a percentage of osteoid surface.
(20) Differential light thresholds were measured and quantified according to one investigator's graticule for the neural representation of visual space.
Reticle
Definition:
(n.) A small net.
(n.) A reticule. See Reticule, 2.
Example Sentences:
(1) Cellular hyperplasia was evaluated by media smooth muscle cell counts using an ocular reticle.
(2) Angular error from gravitational vertical in an alignment task was measured for 20 observers viewing through two window shapes (square, round), two initial orientations of a computer-generated space shuttle image, and the presence or absence of a stabilized optical alignment reticle.
(3) The extracorporeal portion of the catheters showed (by ATR) a more prominent oxidation peak on the external than the internal surface; SEM showed marks and cracks on the external surface and exfoliation and flattening of the silastic reticle on the intraluminal surface.
(4) Cell volume data obtained using a Coulter counter, and nuclear area data of attached cells obtained using an optical microscope with a micrometer reticle, show that cell and nuclear size are related to U.V.L.
(5) The variables of interest included the presence (or absence) of a fixed reticle within the field of view (FOV), background starfield velocity, initial range to the vehicle and vehicle closure velocity.
(6) The radii of curvature (R) of the horizontal, anterior and posterior canals were also measured for both species using a calibrated reticle.
(7) In terms of overall accuracy, it was found that observer error was significantly smaller for the square window and reticle-present conditions than for the round window and reticle-absent conditions.
(8) These results suggest that environmental cuing information, such as that provided by square window frames and alignment reticles, may aid in subjective orientation and increase accuracy of response in a space station proximity operations alignment task.
(9) In addition, the technique uses metric reticles to make the interchange between ventricular and mechanical coordinates possible.
(10) Furthermore, the age-related changes of the relative distribution of the bone, calcified cartilage and prebone (uncalcified bone matrix) were measured under a light microscope by using a grid on the eyepiece reticle.
(11) The first, a reticle to fit the ocular of a stereomicroscope, can be manufactured by the ultramicrotomist and is designed to outline the edges of the block face so that it can be trimmed to a standard size and shape with the area of interest centered in it.
(12) It was found that: 1) increasing vehicle approach velocity yielded a very small (but significant) effect of faster detection of vehicle movement, nevertheless, response variability was relatively large; 2) including the fixed reticle in the FOV produced significantly slower detection of vehicle radial movement, however this occurred only at the largest range and the magnitude of the effect was only about 15% of the one sigma value; and 3) increasing background star velocity during this judgment led to slower detection of vehicle movement.
(13) Currently, patients are taken to a specially equipped studio where a series of microprocessor-controlled reticles are projected on the surface to be analyzed and photographs are taken automatically for computer processing.