(a.) Granular; pertaining to, or having the granular structure characteristic of, the class of meteorites called chondrites.
Example Sentences:
(1) To test this, we have extracted and analysed non-polar substances from the Murchison carbonaceous chondrite, and found that at least some of the components can produce boundary structures which resemble membranes.
(2) Fraction 5 was strongly fluorescent, and contained pyrene and fluoranthene, the major polycyclic aromatic hydrocarbons of the Murchison chondrite.
(3) Further theoretical and experimental studies support the view that hydrogen cyanide polymerization along these lines is a universal process that accounts not only for the past formation of primitive proteins on Earth, but also for the yellow-brown-orange colors of Jupiter today and for the presence of water-soluble compounds hydrolyzable to chi-amino acids in materials obtained from environments as diverse as the moon, carbonaceous chondrites and the reaction chambers used to simulate organic synthesis in planetary atmospheres.
(4) This fraction was also present in extracts from the Murray and Mighei CM2 chondrites.
(5) The latter results belong with a program of interdisciplinary research applications of the new microprobe, which include studies of e.g., the monolayer lateral distribution of intercalant in SbCl5 intercalated graphite and of silicate minerals and iron distribution in sections of chondrules and their rims (components of chondrites, a class of stony meteorites).
(6) Since the initial find in the Murchison meteorite (a type II carbonaceous chondrite) of both protein and nonprotein amino acids with nearly equal abundances of D and L isomers, further studies have been carried out.
(7) A carbonaceous chondrite from the Antarctic, referred to as the Allan Hills meteorite 77306, appears to be free from terrestrial organic contamination.
(8) Basalt (Kilauea-lki) and chondrite (Orgueil) have been found to behave similarly.
(9) The distribution patterns of REE in the NBS materials relative to chondritic meteorites resemble the patterns for geological materials.
(10) Samples of the Murchison CM2 chondrite were extracted with chloroform-methanol, and the chloroform-soluble material was separated by two-dimensional thin layer chromatography.
(11) These objects contained relatively small amounts of water and carbon in a form similar to that found in carbonaceous chondrites.
(12) The recent development of sophisticated analytical techniques and availability of carbonaceous chondrites with a minimum of terrestrial contamination has resulted in the identification of amino acids which provide strong evidence for a natural extraterrestrial chemical synthesis.
(13) Investigations of the Murray meteorite (a type II carbonaceous chondrite) has produced similar results, but studies of the Orgueil meteorite (a type I carbonaceous chondrite) show only a limited suite of amino acids, some of which appear to be indigenous while others appear to be terrestrial contaminanats.
(14) A GC-MS examination of the heterocylics showed resemblance with those found in some carbonaceous chondrites.
(15) The team collected fragments of chondrite that matched other chunks of the meteorite.
(16) Because of the fragility of the laryngotracheal tree in children, and the serious consequences on function of any chondritic lesion or even mucosal edema, overall endoscopic treatments combined with prosthesis insertion are preferred to any surgical procedure.
(17) The role and relative contributions of different forms of energy to the synthesis of amino acids and other organic compounds on the primitive earth, in the parent bodies or carbonaceous chondrites, and in the solar nebula are examined.
Granular
Definition:
(a.) Consisting of, or resembling, grains; as, a granular substance.
Example Sentences:
(1) The leukemic T-cells in two patients with chronic lymphocytic leukemia (CLL) had specific features of large granular lymphocytes (LGL), and those in two patients with acute lymphocytic leukemia (ALL) had L2 morphologic characteristics.
(2) 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.
(3) In situ hybridization of SMG sections showed that Aeg-1 and Aeg-2 transcripts are produced by the cells of granular convoluted tubules.
(4) In the terminal segment of the hamster epididymidis there was some evidence of micro-merocrine protein secretion a the level of the principal cells and clear evidence of granular secretion in the light cells, presumable of glycoproteins.
(5) Measurable quantities of temefos were found in the snails within 1 day after the first treatment with a 2% granular formulation but 3 weeks elapsed before uptake occurred following treatment with a temefos emulsion.
(6) Electron microscopic examination of all leptomeningeal and meningioma cultures revealed desmosomes and dense tonofilament formation; in addition, granular, filamentous basement membrane-like material was abundant in the extracellular spaces of all cultures.
(7) Cholecystokinin (CCK) as the sulfated (CCK-8S) and unsulfated (CCK-8U) octapeptide sequences, and CR 1409 were administered intraventricularly while the action potential (EAP) in the granular cell layer of the hippocampal dentate gyrus evoked by perforant path stimulation was recorded.
(8) The granules of human large granular lymphocytes have been reported to contain, in addition to perforin, a soluble HRF activity that can be eluted from anion-exchange columns at 115 mM NaCl.
(9) Moreover, it was more apparent in less differentiated tumors in which the granular pattern was often absent or inconsistent.
(10) Ultrastructural examination of noncartilaginous regions of the tumor demonstrated mesenchymal cells with features suggestive of cartilaginous differentiation, viz, scalloped cell membranes, sac-like distension of abundant rough endoplasmic reticulum, and a matrix containing fibrillary and finely granular material.
(11) As cyclic AMP-stimulated water flow and sodium transport are thought to occur in one cell type, the granular cells, distinct pools of cyclic AMP are thought to be present in one and the same cell type.
(12) The data obtained testify to the presence in the granular fraction of the endopeptidase LTH-converting activity which is sensitive to pepstatin A, an aspartyl proteinase inhibitor as well as to chelators and a serine proteinase inhibitor.
(13) In the advanced papilloma, cytolytic cells in the outer spinous and the granular layers did not stain positively with any of the three antibodies used.
(14) During the latest phase the periequatorial material is vanishing, the hyaloid capillaries disappear, the density of the posterior granular substance decreases.
(15) Culturing mononuclear cells from peripheral blood or bone marrow of leukemia patients with IL-2 resulted in an expansion of residual large granular lymphocytes and development of cytotoxic activity.
(16) The ultrastructural study of nucleoli and ribonucleoprotein-containing structures in human seminiferous tubules revealed that the nucleoli of spermatogonia, spermatocytes and Sertoli cells exhibited a tripartite structure consisting of: a fibrillar center, a compact granular portion, and a reticular portion containing both pars fibrosa and pars granulosa.
(17) This technique contrasted the fibrillar component and the granular component in interphase nucleoli as a reflection of the degree of packing.
(18) An enormous occurrence of granular endoplasmic reticulum in the intestinal cells of P. commutatus shows an excessive protein synthesis.
(19) Large aggregates of finely granular or filamentous material (nematosomes) were present in AD neurons.
(20) After incubation of cells in a fresh medium (in the course of 18, 24 hours) there occurs a total restoration of the ultrastructure of the nuclei, granular endoplasmatic reticulum, mitochondria, due to the repairing and strong intensification of synthetic processes, respiration and glycolysis, mitotic activity of the cells.