(n.) One of a kind of minute, calcareous bodies, probably vegetable, often abundant in deep-sea mud.
Example Sentences:
(1) Three acidic polysaccharides (PS-1, PS-2, and PS-3) were extracted from the coccoliths with EDTA and were separated and purified by differential precipitation with magnesium ions and chromatography on DEAE-cellulose.
(2) Bibliographic data concerning the variability of coccosphere and coccoliths during the life-cycle of two extant Coccolithophorid species (Calcidiscus gr.
(3) The coccoliths from the species Emilania huxleyi (Lohmann) Kamptner contain a water-soluble acid polysaccharide.
(4) The method is illustrated by application to mixtures of the constituent sugars of the capsular polysaccharide from Klebsiella type 57, alpha 1-acid glycoprotein, mucus glycoproteins, and the methylated, acidic polysaccharide from the coccoliths of Emiliania huxleyi (Lohmann) Kamptner.
(5) A large-scale cultivation of the Coccolithophoridae was worked out and a new procedure for isolating coccoliths was developed.
(6) This species is useful for the study of mineralization, because it produces calcified scales known as coccoliths in homogeneous cell culture.
(7) A polysaccharide associated with coccoliths of the marine alga Emiliania huxleyi (coccoliths are elaborately shaped calcite biominerals) was isolated and its influence on the crystallization of calcium oxalate monohydrate crystals was studied.
(8) sibogae) are summarized and completed by new observations on the structure of the proximal shield by fossil coccoliths.
(9) C-occolithophoridae, a group of mostly unicellular algae, possess a cell wall containing calcified plates, called coccoliths.
(10) These observations also point out the possibility of a diachronous evolution of the two shields of the same coccolith type, underlining the necessity for a better knowledge of the proximal shield structure, usually somewhat neglected.
(11) Such intermediate coccoliths have been previously described from the Badenian (middle Miocene) of central Europe.
(12) The possible role of the polysaccharide as a heterogeneous matrix in coccolith formation is discussed.
(13) leptoporus in the latest Miocene (Messinian) assemblages from three oceanic localities (central Pacific, eastern equatorial Atlantic and southwestern Indian oceans) indicates the co-occurrence of two types of coccoliths: (1) typical C. gr.
(14) A polysaccharide with similar properties could be isolated from subfossil coccoliths of E. hyxleyi (about 1000 years old).
Microscopic
Definition:
(a.) Alt. of Microscopical
Example Sentences:
(1) The results of our microscopic model confirm that the continuum hypothesis used in our previous macroscopic model is reasonable.
(2) Light microscopic studies of pancreata from mice sacrificed at this time demonstrated insulitis and beta cell necrosis.
(3) Using serial section electron microscopic reconstructions as a reference, we have chosen as our standard procedure a method that maximizes both the preservation of the cytoskeleton and the proportion of cells staining, while minimizing the degree of nonspecific staining.
(4) It is concluded that the present method for demonstration of aryl sulphatase activity is not well suited for microscopical identification of lysosomes in rat liver parenchymal cells.
(5) Histological and electron-microscopic study of the lungs of 15 patients who had been treated with bleomycin for advanced squamous cell carcinoma demonstrated marked histological changes in nine.
(6) This light microscopic comparison of viable FDA- and nonviable PI-stained cysts of G. muris demonstrates that 2 types of cysts can be distinguished and implies that structural differences can be used to identify these subpopulations of cysts.
(7) Electron microscopic immunohistochemistry revealed histamine-immunostaining in granules in a small number of nerve fibers and varicosities.
(8) For routine use, 50 mul of 12% BTV SRBC, 0.1 ml of a spleen cell suspension, and 0.5 ml of 0.5% agarose in a balanced salt solution were mixed and plated on a microscope slide precoated with 0.1% aqueous agarose.
(9) Electron microscopic observations of the masseter nerve in the aged cats revealed a disruption of the myelin sheaths and a pronounced increase in collagen fibers in the endoneurium and perineurium.
(10) Widely varying numbers of endocrine cells were identified in 12 out of 64 cases of uterine cancer in the course of histochemical and electron microscopic examination.
(11) Significantly better survival was found in patients with T2 tumors in comparison with patients with T3 and T4 tumors, in patients with infrastructural localization in comparison with patients with suprastructural localization and in patients with microscopic residual tumor in comparison with MRT patients.
(12) At the light-microscopic level, adrenergic fibres were identified due to their formaldehyde-induced fluorescence.
(13) It has a poor prognosis prior to the current combined treatment of surgical ablation, radiation to the surgical field, and chemotherapy for microscopic metastases.
(14) Histochemical and electron microscopic examinations confirmed that this biochemical lesion was associated with abnormal intracellular accumulation of unesterified cholesterol in mutant lymphocytes.
(15) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
(16) Pure bile gave 32 correct diagnoses (67%) and 14 diagnoses of inadequate material (29%), which contained few nondegenerated cells and made microscopic diagnosis unreliable.
(17) Total excisional biopsy is necessary to properly assess an adenoma microscopically.
(18) Examination was by means of counter immunoelectrophoresis, radioimmunoassay and electron microscope with negative staining.
(19) Twenty-seven human septums were removed at post mortem, examined macroscopically, sectioned coronally and examined microscopically.
(20) A television camera scans the spread through microscope optics; computer and special purpose electronics process the video signals to generate run length histograms.