(n.) A rock composed of angular fragments either of the same mineral or of different minerals, etc., united by a cement, and commonly presenting a variety of colors.
Example Sentences:
(1) This represents a major range extension of Miocene Hominoidea in Africa to latitude 20 degrees S. The holotype, a right mandibular corpus preserving the crowns of the P4-M3, partial crown and root of the P3, partial root of the canine, alveoli for all four incisors, and partial alveolus for the left canine, was found during paleontological explorations of karst-fill breccias in the Otavi region of northern Namibia.
(2) Fauna from other breccia blocks at Berg Aukas are of diverse ages, including the earlier part of the middle Miocene, the upper Miocene, Plio-Pleistocene and Holocene.
(3) Once you’ve got your edible samples, each representing a type of meteorite (eg rice cereal as meteoritic breccia), pop them in plastic bags for teams to study and write notes about, putting together short geological descriptions and sketches of their specimen.
Matrix
Definition:
(n.) The womb.
(n.) Hence, that which gives form or origin to anything
(n.) The cavity in which anything is formed, and which gives it shape; a die; a mold, as for the face of a type.
(n.) The earthy or stony substance in which metallic ores or crystallized minerals are found; the gangue.
(n.) The five simple colors, black, white, blue, red, and yellow, of which all the rest are composed.
(n.) The lifeless portion of tissue, either animal or vegetable, situated between the cells; the intercellular substance.
(n.) A rectangular arrangement of symbols in rows and columns. The symbols may express quantities or operations.
Example Sentences:
(1) Within the outflow tract wall, the labelled cells were enmeshed by strands of alcian blue-stained extracellular matrix.
(2) If ascorbic acid was omitted from the culture medium, the extensive new connective tissue matrix was not produced.
(3) These studies led to the following conclusions: (a) all the prominent NHP which remain bound to DNA are also present in somewhat similar proportions in the saline-EDTA, Tris, and 0.35 M NaCl washes of nuclei; (b) a protein comigrating with actin is prominent in the first saline-EDTA wash of nuclei, but present as only a minor band in the subsequent washes and on washed chromatin; (c) the presence of nuclear matrix proteins in all the nuclear washes and cytosol indicates that these proteins are distributed throughout the cell; (d) a histone-binding protein (J2) analogous to the HMG1 protein of K. V. Shooter, G.H.
(4) Discrimination errors were used to generate a matrix of interletter and interpattern similarities.
(5) The fibrous matrix and cartilage formed within the nonunion site transformed to osteoid and bone with increased vascularity.
(6) A complex linkage between the cytoskeleton and the extracellular matrix is illustrated both in the cord forming Sertoli and granulosa cells, and in the adjacent mesenchymal cells.
(7) Thus, our results indicate that calbindin-D28k is a useful marker for the projection system from the matrix compartment and that its expression is modified in patients with progressive supranuclear palsy and striatal degeneration.
(8) Normal cultured human epidermal melanocytes and melanoma cells derived from three different malignant melanomas were examined for synthesis of extracellular matrix components before and after treatment for one day with interferon-gamma, tumor necrosis factor-alpha, or both.
(9) To exclude potential interactions with components of the extracellular matrix which contains binding sites for PAI-1, ligand binding to HepG2 cells in suspension was assessed.
(10) This was followed by the appearance of microfibrils of various sizes and other components of the extracellular matrix.
(11) The first observable change before the acrosome reaction was a partial decondensation of the acrosomal matrix.
(12) In contrast, boundary layer diffusion is operative in the release from the matrixes prepared by compression of physical mixtures.
(13) Human Caco-2 enterocytes were cultured on matrix proteins (collagen I, laminin, fibronectin) with growth factors (epidermal growth factor [EGF] and transforming growth factor-beta 1 [TGF-beta 1]) and the tyrosine kinase and prostaglandin inhibitors genistein and indomethacin.
(14) As an extension of the previous study which indicated that mesoglea is a primitive basement membrane which has retained some characteristics of interstitial extracellular matrix, the present study was undertaken to analyze the role of mesoglea components during head regeneration in Hydra vulgaris.
(15) Its features are consistent with observed structural dimensions and the molecular periodicities related to transcription, replication and matrix attachment domains.
(16) A significant proportion of the soluble protein of the organic matrix of mollusk shells is composed of a repeating sequence of aspartic acid separated by either glycine or serine.
(17) The increased release of alkaline phosphatase from the particulate matrix by lysophosphatidylcholine was confirmed by disc electrophoresis.
(18) The cytoplasmic matrix was labelled only 30 min after injection.
(19) Type beta transforming growth factor (TGF beta) was shown to regulate the production of several extracellular matrix proteins.
(20) They strongly suggest that the ADP-carrier comes to the close neighbourhood of the ATP synthetase on the matrix side of the inner membrane.