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Relevant bibliographies by topics / Ca and phosphate

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Academic literature on the topic 'Ca and phosphate'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Ca and phosphate"

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Valsami-Jones, E. "Mineralogical controls on phosphorus recovery from wastewaters." Mineralogical Magazine 65, no. 5 (2001): 611–20. http://dx.doi.org/10.1180/002646101317018433.

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AbstractThe removal of phosphorus from wastewaters is becoming very common, to meet water quality targets, and avoid environmental problems related to eutrophication. At the same time, agricultural application of P-rich sewage biosolids is diminishing for reasons of logistics and of public pressure. As a result P from wastewaters is ultimately disposed of in landfills. Over the long term, phosphate ore reserves will become depleted. Recycling of P from wastewaters may thus be a realistic prospect if scientific and technical issues can be resolved. At the centre of the scientific problems lie c

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Glazov, I. E., V. K. Krut’ko, R. A. Vlasov, O. N. Musskaya, and A. I. Kulak. "Nanocomposites based on apatitic tricalcium phosphate and autofibrin." Proceedings of the National Academy of Sciences of Belarus, Chemical Series 57, no. 4 (2021): 413–23. http://dx.doi.org/10.29235/1561-8331-2021-57-4-413-423.

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Nanocomposites based on apatitic tricalcium phosphate in an autofibrin matrix were obtained by precipitation at a Ca/P ratio of 1.50, pH 9 and a maturation time from 30 min to 7–14 days. The resorbability of nanocomposites was determined by the composition of calcium phosphates, which, during long-term maturation, formed as the calcium-deficient hydroxyapatite with a Ca/P ratio of 1.66, whereas biopolymer matrix favored the formation of more soluble calcium phosphates with a Ca/P ratio of 1.53–1.59. It was found that the fibrin clot stabilized, along with apatitic tricalcium phosphate, the pha

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Middleton, J. P., F. J. Albers, V. W. Dennis, and J. R. Raymond. "Thapsigargin demonstrates calcium-dependent regulation of phosphate uptake in HeLa cells." American Journal of Physiology-Renal Physiology 259, no. 4 (1990): F727—F731. http://dx.doi.org/10.1152/ajprenal.1990.259.4.f727.

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We used thapsigargin, a sesquiterpene lactone that mobilizes intracellular Ca without increases in inositol phosphates or major activation of protein kinase C (PKC), to test the specific effects of increasing cytosolic Ca on Na-dependent phosphate uptake in HeLa cells. Thapsigargin increased the Vmax for phosphate uptake from 5.40 +/- 0.26 to 7.86 +/- 0.43 nmol.mg protein-1.3 min-1 (n = 7, P less than 0.001) without change in the apparent Km for phosphate, which averaged 0.15 +/- 0.02 mM. The effect of thapsigargin was dependent on concentration and time. Inactivation of PKC by overnight expos

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Jamroz, Dorota, Agnieszka Gajda-Janiak, Zbigniew Wzorek, Zygmunt Kowalski, and Janusz Kubizna. "Chemical and Biological Characteristics of Different Hydrated Monocalcium Phosphates for Broiler Chickens." Annals of Animal Science 12, no. 2 (2012): 187–200. http://dx.doi.org/10.2478/v10220-012-0016-4.

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Chemical and Biological Characteristics of Different Hydrated Monocalcium Phosphates for Broiler ChickensThree hydrated monocalcium phosphates differing in purity (with or without monetite, or monetite and calcite) and in crystalline structure were used in broiler chickens diets. The performance indices, concentration of Ca, P and Mg and activity of alkaline phosphatase in blood plasma, the content of these mineral elements in bones, and physico-mechanical parameters of femur and tibia bones were recorded. Body weight on 35th day of life, feed intake and mechanical parameters of bone quality w

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de Oliveira, Sara Verusca, Marcus Vinícius Lia Fook, Elaine Patrícia Araújo, et al. "Obtaining Tetracalcium Pohosphate and Hydroxyapatite in Powder Form by Wet Method." Materials Science Forum 660-661 (October 2010): 954–58. http://dx.doi.org/10.4028/www.scientific.net/msf.660-661.954.

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The development of research in the area of advanced materials and tissue engineering has increased greatly in recent years found that bioceramics are outstanding in the replacement and regeneration of bone tissue, mainly formed by the calcium phosphate ceramics. The objective of this research is to obtain the calcium phosphate where Ca/P = 1.67 and 2.0, to observe the formation of phases after having subjected these materials to heat treatment. The calcium phosphate was produced by the wet method using a direct reaction of neutralization and characterized by X-ray diffraction (XRD), scanning e

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ANDRALOJC, P. John, Jane E. RYAN, Martin A. J. PARRY, and Alfred J. KEYS. "2-Carboxyarabinitol 1-phosphate (CA1P) formation through a phosphate exchange reaction catalysed by the CA1P phosphatase from French bean (Phaseolus vulgaris L.)." Biochemical Journal 316, no. 2 (1996): 389–93. http://dx.doi.org/10.1042/bj3160389.

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Transfer of the phosphate group of 2-carboxy-D-arabinitol 1-phosphate (CA1P) to 14C-labelled 2-carboxy-D-arabinitol (CA) was catalysed by extracts from leaves of Phaseolus vulgaris. This phosphotransferase activity co-purified with CA1P phosphatase, described previously. This activity was increased, up to 16-fold, by addition of bicarbonate ions at pH 9–10, suggesting rate enhancement by enzyme carbamylation. A Vmax of 1.5 μmol/min per mg of protein and a Km (for CA) of 1.8 mM were estimated for the exchange reaction, with the purified phosphatase. 2-Carboxy-D-arabinitol 1,5-bisphosphate and 2

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Füleky, György. "Phosphorus Supply of Typical Hungarian Soils." Agrokémia és Talajtan 55, no. 1 (2006): 117–26. http://dx.doi.org/10.1556/agrokem.55.2006.1.13.

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The new hot water percolation (HWP) method was introduced to determine the phosphorus supply of soils from the Soil Bank of 36 Hungarian soils. The present work aimed to explain the availability of phosphorus by determining the inorganic phosphate fractions and using ryegrass test plants. Four inorganic phosphate fractions were distinguished: Fraction I, the sorbed phosphates; Fraction II, the easily soluble Ca phosphates and the Al bound phosphates; Fraction III, the Fe phosphates; and Fraction IV, the hardly soluble Ca phosphates. Fraction II, in which the easily soluble Ca phosphates and Al

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Wójcik, Natalia Anna, Polina Sinitsyna, Sharafat Ali, Leena Hupa, and Bo Jonson. "In Vitro Dissolution of Na-Ca-P-Oxynitrides." Materials 14, no. 23 (2021): 7425. http://dx.doi.org/10.3390/ma14237425.

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Sodium-calcium-phosphate based oxynitride glasses and glass-ceramics doped with Mg, Si, and Nb were studied in vitro in simulated body fluid (SBF) under static conditions. The release of ions and pH changes up to 7 days of immersion were investigated. The nitrogen incorporation into phosphate glass matrix was found to notably influence in vitro dissolution only of homogenous glasses. Increasing the nitrogen content in the samples decreased the mean mass loss, while the niobate incorporation increased it. The correlation between the nitrogen content and increase in pH of SBF was also observed.

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Leng, Yang, Ren Long Xin, and Ji Yong Chen. "A Comparative Study of Bioceramics In Vitro and In Vivo." Key Engineering Materials 284-286 (April 2005): 11–14. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.11.

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Bioactive calcium phosphate (Ca-P) formation in bioceramics surfaces in simulated body fluid (SBF) and in rabbit muscle sites was investigated. The examined bioceamics included most commonly used bioglass®, A-W glass-ceramics and calcium phosphates in orthopedic and dental applications. The Ca-P cyrstal structures were examined with single crystal diffraction patterns in transmission electron microscopy, which reduced possibility of misidentifying Ca-P phases. The experimental results show that capability of Ca-P formation considerably varied among bioceramics, particularly in vivo. Octacalciu

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Possenti, Elena, Claudia Conti, G. Diego Gatta, Marco Realini, and Chiara Colombo. "Diammonium Hydrogenphosphate Treatment on Dolostone: the Role of Mg in the Crystallization Process." Coatings 9, no. 3 (2019): 169. http://dx.doi.org/10.3390/coatings9030169.

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The diammonium hydrogenphosphate (DAP, (NH4)2HPO4) reaction with calcite has been extensively investigated. The availability of free calcium ions in the reaction environment has been acknowledged as a crucial factor in the crystallization of calcium phosphates with a high (hydroxyapatite, Ca/P 1.67) or low Ca/P molar ratio (dicalcium phosphate dihydrate, Ca/P 1.00; octacalcium phosphate, Ca/P 1.33). On the contrary, no data are available on the DAP interaction at room temperature with dolomite in terms of reaction mechanism and composition of the reaction products. Here, a multi-analytical app

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Dissertations / Theses on the topic "Ca and phosphate"

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O'Kane, Chris. "Optimisation of RF magnetron sputter deposited calcium phosphate (Ca-P) thin films." Thesis, University of Ulster, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535139.

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Elson, Laura. "Regulation of cardiac Ca²⁺ signalling mechanisms and contractile function by nicotinic acid adenine dinucleotide phosphate." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711617.

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Barca, Cristian. "Steel slag filters to upgrade phosphorus removal in small wastewater treatment plants." Thesis, Nantes, Ecole des Mines, 2012. http://www.theses.fr/2012EMNA0045/document.

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L’objectif de ce travail est la mise au point de filtres garnis de laitiers d’aciéries destinés au traitement du phosphore (P) des eaux usées au sein de petites installations. Deux types de laitiers on été testés: laitiers de four à arc électrique (EAF), et laitiers d'aciérie de conversion (BOF). Une approche intégrée a été suivie, avec investigations à différentes échelles: (i) Des expériences en flacons ont été réalisées pour établir les capacités de rétention du P de laitiers produits en Europe, et ainsi sélectionner les échantillons les plus adaptés pour l’élimination du P; (ii)Des expérie

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Bell, John Alexander. "Carbon based nutrition of Staphylococcus aureus and the role of sugar phosphate transporters in intracellular bacterial replication." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9545.

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The Gram positive bacterium Staphylococcus aureus is a major cause of human disease in industrialized countries. This multifaceted pathogen is adapted to thrive in a variety of host niches, including the intracellular compartment. S. aureus rapidly develops antibiotic resistance, and infections due to resistant clones pose a global threat, calling for novel therapeutic approaches. The ability to exploit host nutrients and efficiently metabolize these resources for growth is paramount for bacterial pathogenesis. Understanding the nutritional and metabolic determinants that underpin bacterial vi

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Ould, Saleck Ahmed. "Synthèse et caractérisation physico-chimique de nouveaux phosphates de magnésium : (A¹₂ ou B²)Mg₂M³(PO₄)₃ (A = Na, Ag ; B = Ca, Pb, Sr, Ba ; M = Fe, In)." Thesis, Valenciennes, 2018. http://www.theses.fr/2018VALE0045.

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Ce travail de thèse s’inscrit dans le cadre de la contribution au programme de valorisation des matériaux phosphatés et plus particulièrement, les phosphates de type alluaudite ou α-CrPO₄. Ces composés se distinguent par leurs propriétés physico-chimiques aussi variées qu’importantes et sont très convoités dans plusieurs domaines d’applications comme la catalyse et l’électrochimie.Nous avons pu isoler onze nouveaux phosphates et déterminer leur structure par la diffraction des rayons X sur monocristal.Le phosphate PbMg₃(HPO₄)(PO₄)₂ a été préparé par la méthode hydrothermale. Sa structure crist

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Piotrowski, Bernard. "Apport des substituts osseux synthétiques en régénération osseuse post-extractionnelle et péri-implantaire." Toulouse 3, 2006. http://www.theses.fr/2006TOU30006.

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L'objectif de la thèse est d'évaluer l'apport de certains substituts osseux en régénération osseuse. La première partie est consacrée à une revue de la littérature à propos de l'implantation immédiate et des substituts osseux synthétiques. La deuxième partie concerne une expérimentation animale destinée à étudier le comportement de deux matériaux synthétiques. Le premier est un phosphate de Ca alliant une HA à un b-tricalcique, utilisé en comblement alvéolaire post-extractionnel. Le deuxième, un bioverre, a été placé dans des alvéoles d'extraction et autour d'implants immédiats. L'histologie a

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Balter, Vincent. "Les rapports Sr/Ca et Ba/Ca dans les phosphates biogéniques : Applications paléo-écologiques et paléo-anthropologiques." Bordeaux 1, 2001. http://www.theses.fr/2001BOR12361.

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L'objectif de ce travail était d'utiliser des marqueurs biogéochimiques, les rapports Sr/Ca et Ba/Ca dans les phosphates biogéniques, afin de reconstituer quantitativement des paléo-régimes alimentaires. Il a été montré que l'appauvrissement relatif des rapports Sr/Ca et Ba/Ca entre les bioapatites et l'alimentation de mammifères pouvait être décrit parl'équation : [Ba/Ca)bioapatite/(Ba/Ca)alimentation]=[(Sr/Ca)bioapatite/(Sr/Ca)alimentation]1,76±0,18. Il a été ensuite distingué les processus diagénétiques susceptibles d'altérer la composition biogénique en Sr, Ba et Ca des bioapatites, puis à

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Ducel, Jean-François. "Nouveaux verres borophosphates de sodium et de calcium. Corrélation structure-propriétés physico-chimiques. Application dans le domaine biomédical." Phd thesis, Université Sciences et Technologies - Bordeaux I, 1993. http://tel.archives-ouvertes.fr/tel-00134062.

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Cette étude a porte sur la caractérisation tant physico-chimique que structurale de verres issus du système NaPO3-Na2B4O7-Ca5(PO4)3OH pouvant servir a des applications dans le domaine biomédical. Dans une première partie, les verres de composition (1-x) NaPO3-xNa2B4O7 ont été étudies. L' évolution inattendue des propriétés physicochimiques a pu être correlée a la structure caractérisée par RMN (31P MAS et 11B) et spectroscopies vibrationnelles (infrarouge et diffusion Raman). Dans une deuxième partie, l' effet d' addition de l' hydroxyapatite dans les verres borophosphates de sodium montre un

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Dai, Wubin. "Tunable luminescence of doped MAI2SI2O8 aluminosilicates (M=Ca, Sr, Ba)." Nantes, 2012. https://archive.bu.univ-nantes.fr/pollux/show/show?id=c5e87e3b-f401-4366-a1a2-be142d0a0d5e.

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Pour espérer résoudre les problèmes de réchauffement de la planète, il devient urgent de promouvoir toute action susceptible de conduire à des économies d'énergie. A ce jour, 20% de la production d'électricité sont dédiés à l'éclairage. Dès lors, dans un contexte où la demande en énergie va croissante en relation avec une population mondiale toujours plus importante, la découverte de nouvelles sources lumineuses s'avère être primordiale pour favoriser la diminution de la consommation d'énergie électrique, tout en respectant au maximum les nouveaux impératifs environnementaux via l'augmentation

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Yeo, Alison. "Coincident signalling between Gâ†q- and Gâ†iâ†/â†o-coupled receptors to elevate [Ca'2'+]â†i." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297781.

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Books on the topic "Ca and phosphate"

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Piper, David Z. Cooccurrence of Fe-, Fe-Ca-, and Ca-phosphate minerals in concretions within the Monterey Formation: A record of uplift of the Santa Maria Basin, California. U.S. G.P.O., 1993.

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João Roberto Braga de Mello. Untersuchungen der Auswirkungen von kalzinogenen Pflanzen auf die Elemente Ca, P und alkalische Phosphatase bei Hühnerküken. [s.n.], 1991.

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Voinescu, Alexandra, Nadia Wasi Iqbal, and Kevin J. Martin. Management of chronic kidney disease-mineral and bone disorder. Edited by David J. Goldsmith. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199592548.003.0118_update_001.

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In all patients with chronic kidney disease (CKD) stages 3–5, regular monitoring of serum markers of CKD-mineral and bone disorder, including calcium (Ca), phosphorus (P), parathyroid hormone (PTH), 25-hydroxyvitamin D, and alkaline phosphatase, is recommended. Target ranges for these markers are endorsed by guidelines. The principles of therapy for secondary hyperparathyroidism include control of hyperphosphataemia, correction of hypocalcaemia, use of vitamin D sterols, use of calcimimetics, and parathyroidectomy. of hyperphosphataemia is crucial and may be achieved by means of dietary P rest

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The Cap2sp+s/CaM-dependent phosphoprotein phosphatase calcineurin: Its role in chemotaxis of axenic cells and analysis of possible substrates in dictyostelium discoideum. National Library of Canada = Bibliothèque nationale du Canada, 1999.

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Book chapters on the topic "Ca and phosphate"

1

Pfahler, V., J. Adu-Gyamfi, A. Watzinger, and F. Tamburini. "Modifications and Issues During Purification." In Oxygen Isotopes of Inorganic Phosphate in Environmental Samples. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97497-8_4.

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AbstractDepending on the extract, it is necessary to modify the purification protocol slightly. Each sample is different and despite a thorough testing of the purification protocol, issues might occur. The three modifications suggested include (1) adjustments in pH, (2) magnesium ammonium phosphate (MAP) precipitation and (3) reductions, prior to A1, of cations like iron (Fe), silica (Si) and calcium (Ca) which could cause interferences during the purification process. Some of the major issues often encountered are (1) no APM precipitation due to the presence of high carbonate concentrations,

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Kesisoglou, A., Jonathan C. Knowles, and I. Olsen. "Effects of Ca-Containing Phosphate Glasses on T Lymphocytes In Vitro." In Bioceramics 17. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-961-x.597.

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Kamakura, Shinji, Takashi Kumagai, Yoshitomo Honda, et al. "Fluoridated Ca-Deficient Apatite Formed Via Octacalcium Phosphate Enhances Bone Regeneration." In Bioceramics 18. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-992-x.137.

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Lee, Jong Kook, Dae Sung Song, Kyu Hong Hwang, and Dong Seok Seo. "Effect of Ca/P Ratio on the Dissolution of Calcium Phosphate Powders." In Advanced Biomaterials VII. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-436-7.661.

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Sogo, Yu, Atsuo Ito, Koshiro Fukasawa, Tokoha Sakurai, Noboru Ichinose, and Racquel Z. LeGeros. "Zinc-Containing Calcium Phosphate Ceramics with a (Ca+Zn)/P Molar Ratio of 1.67." In Bioceramics 17. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-961-x.31.

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Kang, Yun Qing, Guang Fu Yin, Ke Feng Wang, Lin Luo, and Ya Dong Yao. "Ca-P Formation on Poly-L-Lactide/β-Tricalcium Phosphate Composite Scaffold in Simulated Body Fluid." In Advanced Biomaterials VII. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-436-7.689.

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Andralojc, P. J., J. E. Ryan, M. A. J. Parry, and A. J. Keys. "Identification and Characterization of a CA-CA1P Phosphate Exchange Activity in Leaf Extracts from French Bean (Phaseolus vulgaris L.)." In Photosynthesis: from Light to Biosphere. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0173-5_958.

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Schainberg, A. P. M., Lutfiye Sevgi Özyeğin, P. Kursuoğlu, Patricia Valério, Alfredo Goes, and M. Fatima Leite. "Biocompatibility Evaluation of Zeolite Compared to Bone HA, Calcium Phosphate (Ca₂PO₄) and Eugenol Paste." In Bioceramics 17. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-961-x.561.

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Whyte, Michael P. "Rickets and Osteomalacia (Acquired and Heritable Forms)." In Oxford Textbook of Endocrinology and Diabetes 3e, edited by John A. H. Wass, Wiebke Arlt, and Robert K. Semple. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198870197.003.0091.

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Rickets and osteomalacia refer to the consequences of generalized impairment of skeletal mineralization during growth and adult life, respectively. Among the complications can be deformity, fracture, weakness, and pain. The many acquired or heritable causes typically involve low circulating levels of inorganic phosphate (Pi), often with hypocalcaemia and secondary hyperparathyroidism. Commonly, the pathogenesis features deficiency of vitamin D leading to malabsorption of dietary calcium (Ca). Especially rare forms involve aberrant bioactivation or action of vitamin D, elevated circulating leve

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Kenfish, Jonathan C., and Sue Palmer. "The influence of pH. phosphate, and ionic strength on contraction in skinned cardiac muscle." In Modulation of Cardiac Calcium Sensitivity. Oxford University PressNew York, NY, 1993. http://dx.doi.org/10.1093/oso/9780192623478.003.0003.

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Abstract There are two principal ways in which the relationship between Ca+ concentration ([Ca +]) and myofibrillar force development can be measured. The first is to introduce Ca+ -sensitive photoproteins or dyes into the cell and to measure force and cytosolic [Ca +] while both change, for example during the twitch. The second method is to permeabilize (‘skin’) the cell surface membrane so that externally applied ions (Ca2+, MgATP-, and so on) readily diffuse into the cells and so control the myofibrillar environment.

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Conference papers on the topic "Ca and phosphate"

1

Wallace, S. L. "Chelant Enhancement of a Polymer Boiler Water Treatment Program." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85248.

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Abstract Four boiler water treatment programs were evaluated for their ability to transport metal ions through 600 psi (41 MPa) waste heat recovery steam generators. The four programs were as follows: phosphate/sulfitephosphate/sulfite/polymerphosphate/sulfite/chelantphosphate/sulfite/polymer/chelant Phosphate/sulfite alone failed to transport Ca, Mg, or Fe metal ions through the boiler. The addition of a polymer, to the phosphate/sulfite chemistry transported Mg through the boiler and aided in the dissolution of Mg from the previously deposited boiler scale. This program also increased the am

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Ohtaka, H., T. Kawamura, and Y. Furukawa. "Zinc and Phosphate Scale Inhibition by a Newly Developed Polymer." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89432.

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Abstract Low molecular weight acrylate-allylsulfonate copolymers excellent in zinc and phosphate salt precipitation inhibition and less liable to form insoluble precipitates with Ca2+ are found to show good inhibition of zinc and phosphate scale at heat transfer surfaces. The precipitation inhibition and polymer-Ca insolubility are closely related to molar ratio of allylsulfonate in the copolymers and molecular weight. The authors found copolymers containing 20 mol% allylsulfonate and with about 0.065 dL/g intrinsic viscosity are better than polyacrylate and maleate-styrenesulfonate copolymers

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Nicolas, George, Amannie Kweik, and Zahid Amjad. "Inhibitory Activity of Biopolymers, Synthetic Polymers, and Phosphonates against the Formation of Calcium Phosphate Scale in Cooling Water Systems." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09013.

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Abstract The inhibition of calcium phosphate (Ca/P) precipitation by natural organic polyelectrolytes, bio- and hybrid polymers, homo- and co-polymers of acrylic acid and maleic acid containing different functional groups was examined in aqueous solution. Additionally, commonly used phosphonates were also evaluated as Ca/P inhibitors. It has been found that performance of additive (polymeric and non-polymeric) as Ca/P inhibitor depends upon additive concentration, ionic charge, and molecular weight. Based on the inhibition data, the ranking in terms of decreasing effectives is: biopolymer &amp

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Ren, Shuai, Xi Wang, David Young, et al. "Effect of Cementite on the Corrosion Inhibition of Carbon Steel with Tetradecyl Phosphate Ester in CO2 Environment." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19309.

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Abstract Despite extensive use of corrosion inhibitors (CIs) to mitigate internal pipeline corrosion, few studies address how corrosion residue or products affect their performance. In the present work, in-house synthesized CI model compound, tetradecyl phosphate ester (PE-C14), was used to investigate the effect of cementite (Fe3C) on corrosion inhibition performance on C1018 steel with ferritic-pearlitic microstructure, on which residual Fe3C skeleton tended to stay on the surface during pre-corrosion. A 40 μm Fe3C skeleton was exposed and maintained on specimen surface after 2-day pre-corro

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Permeh, Samanbar, Carla Reid, Mayrén Echeverría Boan, et al. "Microbiological Influenced Corrosion (MIC) in Florida Marine Environment: a Case Study." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09536.

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Abstract Microbiologically Influenced Corrosion (MIC) occurs in environments where microbial attachment and biofilm formation occurs. The microbial metabolic activities which cause MIC affect materials in a wide variety of industries. Although MIC has not traditionally been a major durability concern for Florida coastal and inland bridges, a recent finding by the Florida Department of Transportation (FDOT) of severe corrosion of steel bridge piles with strong evidence of microbial activity, has motivated the present study. As a preliminary research, identify the possible susceptibility of a ca

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Kan, A. T., X. Cao, L. Yan, J. E. Oddo, and M. B. Tomson. "The Transport of Chemical Scale Inhibitors in Reservoirs and Its Importance to the Squeeze Procedure." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92033.

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Abstract Phosphonate inhibitors are used for scale and corrosion control in gas and oil production. The fate of scale inhibitor in the oil bearing formation following an inhibitor squeeze has been carefully studied in both laboratory apparatus and actual field squeezes. The effects of acidity, sandstone composition, and brine composition on retention and release of phosphonate from Berea sandstone were evaluated using adsorption/precipitation models. The adsorption of phosphonate on sandstones typically occurred in clay minerals in the range of less than 0.2 mg/g sorption density. More phospho

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Tenopir, T. J., and B. B. Bavarian. "Corrosion Prevention of Plain Carbon and Low Alloy Steels in the Marine Environment." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88397.

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Abstract Crevice, pitting, galvanic, intergranular and uniform corrosion occur at the Mk 26 Guided Missile Launching System (GMLS) guide arm assemblies due to inherent design deficiencies and normal interaction with the operating environment. Corrosion prevention in the guide arm assembly hydraulic access cover areas, which primarily suffer from pitting, crevice and intergranular attack was studied. 1008, 1018, ASTM A514 Grade B and ASTM A514 Grade E specimens were subjected to salt-spray, inhibitor and cathodic protection tests to evaluate various corrosion control measures. 3% by weight sodi

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Shaw, S. S., and K. S. Sorbie. "Structure and Stoichiometry of Mixed Calcium–Magnesium–Phosphonate Scale Inhibitor Complexes for Application in Precipitation Squeeze Processes." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3865.

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Abstract Phosphonate scale inhibitors (SIs) applied in downhole squeeze applications may be retained in the near-well formation through adsorption and/or precipitation mechanisms. In this paper, we focus on the properties of precipitated “mixed” calcium and magnesium phosphonate complexes formed by nine common phosphonate species. By “mixed”, we mean anionic SI bound to both calcium and magnesium divalent cations, i.e. the complex SI_Can1_Mgn2 is formed where n1 and n2 are the stoichiometric coefficients for Ca and Mg, respectively. The stoichiometry (n1 and n2 or the Ca2+/P and Mg2+/P molar r

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Garcia, E., L. Gan, R. Pilliar, and T. Coyle. "Calcium Phosphate Coatings Produced by Solution Precursor Plasma Spray." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0493.

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Abstract Calcium phosphate (Ca-P) coatings have been used as surface coatings on porous metallic implants in dentistry and orthopaedics for the last twenty years. These Ca-P coatings, nominally hydroxyapatite (HA), have been shown to promote bone fixation and osteconductivity on Ti and Ti alloy substrates used for those purposes. Such coatings can be formed by different methods including plasma spray. In addition to the well known advantages of the plasma spray technique to deposit coatings, a new version of this technique, i.e. solution precursor plasma spray (SPPS), has been reported to prod

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Agbaje, Oluwatoosin. "Matrix macromolecules and Ca-phosphate components in the organophosphate-shelled biominerals." In Goldschmidt2021. European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.3757.

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Reports on the topic "Ca and phosphate"

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Jinawath, Supatra, Dujreutai Pongkao Kachima, and Pornapa Sujaridworakun. Preparation of bioceramic specimens for medical application : report on. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.37.

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HA (hydroxyapatite, Ca [subscript 10](PO[subscript 4])[subscript 6](OH)[subscript 2], Ca/P = 1.67) and composite TCP/HA (Tricalcium phosphate, Ca [subscript 3] (PO [subscript 4]) [subscript 2], Ca/P = 1.5) were synthesized in our laboratory from bovine bone ash or the waste from the manufacture of products derived from it and fabricated into porous bar and disc shaped specimens (30-34 v% porosity, flexural strength of 17 MPa, pore diameters <5-30 [mu]) for in vivo histological study and clinical trial, repectively. The histological results of the 3- and 6-month in vivo tests in canines were

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Szecsody, James E., Mark L. Rockhold, Martinus Oostrom, et al. Sequestration of Sr-90 Subsurface Contamination in the Hanford 100-N Area by Surface Infiltration of a Ca-Citrate-Phosphate Solution. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/985589.

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Szescody, James E., Robert C. Moore, Mark J. Rigali, Vincent R. Vermeul, and Jon Luellen. Use of a Ca-Citrate-Phosphate Solution to Form Hydroxyapatite for Uranium Stabilization of Old Rifle Sediments: Laboratory Proof of Principle Studies. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1431271.

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Szescody, James E., Robert C. Moore, Mark J. Rigali, Vincent R. Vermuel, and Jon Leullen. Use of a Ca-Citrate-Phosphate Solution to Form Hydroxyapatite for Uranium Stabilization of Old Rifle Sediments: Laboratory Proof of Principle Studies. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1561202.

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Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solu

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Litaor, Iggy, James Ippolito, Iris Zohar, and Michael Massey. Phosphorus capture recycling and utilization for sustainable agriculture using Al/organic composite water treatment residuals. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600037.bard.

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Objectives: 1) develop a thorough understanding of the sorption mechanisms of Pi and Po onto the Al/O- WTR; 2) determine the breakthrough range of the composite Al/O-WTR during P capturing from agro- wastewaters; and 3) critically evaluate the performance of the composite Al/O-WTR as a fertilizer using selected plants grown in lysimeters and test-field studies. Instead of lysimeters we used pots (Israel) and one- liter cone-tainers (USA). We conducted one field study but in spite of major pretreatments the soils still exhibited high enough P from previous experiments so no differences between

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Cooccurrence of Fe-, Fe-Ca-, and Ca-phosphate minerals in concretions within the Monterey Formation; a record of uplift of the Santa Maria Basin, California. US Geological Survey, 1993. http://dx.doi.org/10.3133/b1995c.

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