(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.
Reticulum
Definition:
(n.) The second stomach of ruminants, in which folds of the mucous membrane form hexagonal cells; -- also called the honeycomb stomach.
(n.) The neuroglia.
Example Sentences:
(1) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
(2) We have examined the insertion of bovine 17 alpha-hydroxylase (P45017 alpha) into the endoplasmic reticulum of COS 1 cells to evaluate the functional role of its hydrophobic amino-terminal sequence and membrane insertion.
(3) By 24 hr, rough endoplasmic reticulum in thecal cells increased from 4.2 to 7% of cell volume, while the amount in granulosa cells increased from less than 3.5% to more than 10%; the quantity remained relatively constant in the theca but declined to prestimulation values in the granulosa layer.
(4) The cis isomer was retained longer in liver, particularly in mitochondria, but had low retention in that portion of the endoplasmic reticulum isolated as the rough membrane fraction.
(5) Freshly isolated sarcoplasmic reticulum vesicles contain 0.05 mol of tightly bound ADP and 0.03 mol of tightly bound ATP per mol of Ca2+, Mg2+-ATPase (ATP phosphohydrolase, EC 3.6.1.3).
(6) Using an antibody to the nerve growth factor receptor (NGFR), we examined dendritic reticulum cells (DRCs) immunohistochemically in 62 formalin-fixed, paraffin-embedded lymph nodes from patients with reactive follicular hyperplasia or with various types of lymphoma.
(7) Combined SEM and TEM examination of the endothelium of compressed segments revealed "craters" and "balloons", blebs and vacuoles, swollen mitochondria, dilated granular endoplasmic reticulum, and subendothelial edema.
(8) In the case of the reticulum cell sarcoma, the tumor had not reappeared in some of the animals two months after cessation of treatment.
(9) This heretogeneity occurred mainly as a progressive, decreasing gradient in the first half of this pathway, between the rough endoplasmic reticulum and the mi-cisternae of the Golgi apparatus.
(10) Electron microscopy revealed a well-developed rough endoplasmic reticulum, an enlarged Golgi apparatus and many highly electron-dense secretory granules resembling those of Clara cells.
(11) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
(12) Four fractions enriched, respectively, in plasma membrane (PM), smooth endoplasmic reticulum (SER), rough endoplasmic reticulum (RER), and mitochondria were isolated from estrogen-dominated rat myometrium.
(13) Comparison of the native and derivatized wheat germ CaMs with native bovine testis CaM indicates that the concentrations of these proteins required for half-maximal stimulation of either erythrocyte membrane Ca2+-ATPase activity or cardiac sarcoplasmic reticulum phosphorylation are very similar.
(14) Electron microscopic evaluation of microsomal fractions showed elements of the plasma membrane, including cilia and microvilli, as well as rough and smooth endoplasmic reticulum.
(15) This change in cholesterol esterification appears to be the result of reductions in the activity of acyl-CoA:cholesterol acyltransferase (ACAT) in the endoplasmic reticulum of the macrophages incubated with the n-3 polyunsaturated fatty acids.
(16) Ribosomes attached to the reticulum lost polysomal arrangement.
(17) In muscle cells the mitochondria were in the process of dissolving and the sarcoplasmic reticulum formed elongate cisternae.
(18) The unique structure we describe is a cytoplasmic organelle which, like annulate lamellae, is closely associated with the endoplasmic reticulum and is presumed to be related to the genesis of rough-surfaced endoplasmic reticulum in tumor cells.
(19) We have studied the effects of clinically useful anthraquinones on the cardiac sarcoplasmic reticulum calcium-release channel.
(20) The smooth endoplasmic reticulum present in the terminals of the offshoots of the light pinealocytes is possibly involved in pineal indoleamine synthesis.