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67 results for “calcium phosphate”
Fig. 67. Problematic calcium phosphatic sclerites Fomitchella acinaciformis Missarzhevsky, 1977 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia
Fig. 67. Problematic calcium phosphatic sclerites Fomitchella acinaciformis Missarzhevsky, 1977, from early Cambrian Emyaksin Formation, eastern flank of the Anabar Uplift, Siberia, Russia; sample 5a/18.5, section 96-5a. A SMNH X5962. B. SMNH X5964. C. SMNH X5966. D. SMNH X5967. E. SMNH X5963. F. SMNH X5965. G. SMNH X5968. A1, A3, C, D2, G, lateral; A2, D1, oblique apertural; B, F, oblique apical views; A4, E2, outer surface with fibres at apertural margin. Scale bar 100 μm (A4, E2), 250 μm (A3), 500 μm (A1, A2, B–D, E1, F, G).
Fig. 66. Problematic calcium phosphatic sclerites Fomitchella aff. acinaciformis Missarzhevsky, 1977 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia
Fig. 66. Problematic calcium phosphatic sclerites Fomitchella aff. acinaciformis Missarzhevsky, 1977 (A–E), Fomitchella acinaciformis Missarzhevsky, 1977 (F, G), and Fomitchella sp. (H), from early Cambrian Emyaksin Formation, eastern flank of the Anabar Uplift, Siberia, Russia; samples 5a/10.5 (A, B, E), 5a /17.5 (C, F–H), 5a/9 (D), section 96-5a. A–H. SMNH X5954–5961, respectively. A1, oblique apical; A3, C2, D2, H3, apical; A2, B, C3, D1, E1, F, G2, G3, H1, H2, lateral; E2, apertural; G1, oblique apertural views; C1, close-up of apertural margin with fibres (note two inserted sclerites). Scale bar 50 μm (C1), 250 μm (A1, B, C2, C3, E, H), 500 μm (A2, A3, D, F, G).
Fig. 6 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 6. SEM images of coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Spherical and elongated voids present in the fine calcium phosphate precipitated around the microspherulites (white arrows) (Zone X) (RO-2008-117). B, C. Small voids resembling rod-shaped bacteria (white arrows), differing from the microspherulites (black arrows) in their smaller size (RO-2008-3). D. TEM of an ultrathin section, showing negative moulds resembling rod-like bacteria (white arrows) in the fine calcium phosphate material (RO-2008-117).
Fig. 4 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 4. SEM images of coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Calcite crystals inside a void likely produced by gas arising from digestive processes (RO-SSC). B. Matrix composed of microspherulites 1–3 μm in diameter (RO-SSC). C. Polished sections examined in backscattered detection mode, showing the thin-walled structure of the microspherulites (white arrows) (RO-2008-117). D. Microspherulites embedded in a fine-grained calcium phosphate precipitate; the brighter zones indicate areas enriched in Na and Cl (white arrows) (RO-2008-117).
Fig. 1. A in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 1. A. Location of the La Roma 2 site (modified from van Dam et al. 2001). B. General stratigraphic section of the La Roma 2 site (modified from Alcalá 1994).
Fig. 3 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 3. Photomicrographs showing thin sections of a coprolite (RO-2008-9a) of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Section of the coprolite. B–E. Homogeneous zone (Zone X). B. Quartz inclusion, probably introduced from the surrounding sediment. C. A void, probably produced by gas, in the homogeneous zone (Zone X), with no filling and showing no corroded margins. D. Limit between the homogeneous zone (Zone X) (right) and the central hole (left) (Zone Z) (the rounded shapes are artefacts caused by the consolidation of the sample). E. Thin outer rim of the homogeneous zone (Zone X), showing a more compact phosphatic margin (orange, on the left). F–H. Heterogeneous zone (Zone Y). F. Bone fragment altered by digestive acids in the heterogeneous zone (Zone Y), showing the presence of iron in the surrounding phosphatic matrix. G. Voids and cracks within the heterogeneous zone (Zone Y), showing margin corrosion and iron precipitation partially replacing the original phosphatic matrix. H. Calcite-filled voids and shrinkage cracks in the heterogeneous zone (Zone Y).
Fig. 2. X in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 2. X-Ray diffractograms of seven coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from the locality of La Roma 2 (Upper Miocene, Spain). Image generated from XPowder Ver. 2004.04.46 PRO.
Treatment for Calcium Phosphate Kidney Stone Disease
ClinicalTrials.gov study NCT01754779. IPD Sharing: NO. Countries: 1. Publications: 1.
Supersaturated Calcium Phosphate Rinse in Preventing Oral Mucositis in Young Patients Undergoing Autologous or Donor Stem Cell Transplant
ClinicalTrials.gov study NCT01305200. IPD Sharing: Not stated. Countries: 3. Publications: 1.
PLGA-coated Biphasic Calcium Phosphate in Sinus Lift
ClinicalTrials.gov study NCT03474627. IPD Sharing: NO. Countries: 1. Publications: 4.
Evaluation of Silica-calcium Phosphate Composite in Socket Augmentation
ClinicalTrials.gov study NCT03897010. IPD Sharing: NO. Countries: 1. Publications: 1.
Efficacy and Safety Study of Non-percutaneous Vertebroplasty With Macroporous Calcium Phosphate Cement (MCPC)
ClinicalTrials.gov study NCT00931333. IPD Sharing: Not stated. Countries: 1. Publications: 24.
Human Intervention Study With Calcium Phosphate and Vitamin D
ClinicalTrials.gov study NCT01297023. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Effect of Tri Calcium Phosphate on Efficacy and Sensitivity With Vital Tooth Whitening Using 20% Carbamide Peroxide
ClinicalTrials.gov study NCT03026725. IPD Sharing: NO. Countries: 1. Publications: 5.
Different Effects of Non-calcium Phosphate Binders on Serum Calcium
ClinicalTrials.gov study NCT03451019. IPD Sharing: NO. Countries: 1. Publications: 1.
Effect of Casein Phosphopeptide Amorphous Calcium Phosphate Fluoride Varnish on Remineralization of White Spot Lesion in Primary Teeth
ClinicalTrials.gov study NCT03865680. IPD Sharing: Not stated. Countries: 1. Publications: 6.
Histological Analysis of Osteogenic Potential of Biphasic Calcium Phosphate
ClinicalTrials.gov study NCT06020092. IPD Sharing: NO. Countries: 1. Publications: 2.
Comparison of Volar Locking Plate Fixation Alone and Volar Locking Plate Fixation Plus Calcium Phosphate Bone Cement Augmentation for Distal Radius Fractures Patients Aged More Than 65
ClinicalTrials.gov study NCT01091415. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Maxillary Sinus Lift With and Without Self-hardening Biphasic Calcium Phosphate.
ClinicalTrials.gov study NCT04214054. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Calcium Phosphate and Incretins
ClinicalTrials.gov study NCT01296997. IPD Sharing: Not stated. Countries: 1. Publications: 1.
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