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Dissertations / Theses on the topic 'Ca and phosphate'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Polesky, Aaron Joseph Michael. "The Ca²§+/CaM-dependent phosphoprotein phosphatase calcineurin, its role in chemotaxis of axenic cells and analysis of possible substrates in dictyostelium discoideum." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0005/MQ28812.pdf.

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12

Dong, Yu. "Ca²⁺/calmodulin dependent protein kinase II subcellular re-distribution and activation of protein phosphatase after a brief pentylenetetrazol seizure potential role in kindling /." Connect to full-text via OhioLink ETD Center, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=mco1082463968.

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Thesis (Ph. D.)--Medical College of Ohio, 2003.<br>"In partial fulfillment of the requirements for the degree of Doctor of Philosophy in Medical Sciences." Major advisor: Howard Rosenberg. Document formatted into pages: iv, 144 p. Title from title page of PDF document. Includes bibliographical references (p. 104-132).

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13

Chang, Yu-Chen, та 張玉禎. "A Study of Preparing Whisker β-Ca(PO3)2 from Calcium Phosphate Glass". Thesis, 1995. http://ndltd.ncl.edu.tw/handle/75672587738292635429.

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14

Sheu, Jie Ming, and 許嘉明. "The Crystallization Studies of Calcium Phosphate Glass-Ceramics with Various Ca/P mole ratios." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/11226152964881069759.

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15

Xu, Jia-Ming, and 許嘉明. "The crystallization studies of calcium phosphate glass-ceramics with various Ca/P mole ratioszeng." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/55839444269665585356.

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16

Jäger, Elisabeth. "Mechanism of the Ca²⁺-induced, GPCR-mediated inflammasome activation in human monocytes." 2019. https://ul.qucosa.de/id/qucosa%3A70644.

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Monocytes, as innate immune cells, are recruited to sites of infection or injury to modulate immune responses and tissue repair. Ca²⁺, which is released from dying cells, could act as an attractant for monocytes eliciting chemokinetic responses. Triggering further the production and release of pro-inflammatory cytokines, Ca²⁺ mimics a danger signal on monocytes in terms of sterile inflammation. This extracellular signal is transduced through calcium-sensing receptor (CaSR) into immunomodulatory responses, more specifically into the assembly of the inflammasome platform, which promotes the matu

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17

董國忠. "The Investigation on Crystallization and Physical Properties of Low Ca/P Molar Ratios of Calcium Phosphate Glass System." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/54428430998144369932.

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碩士<br>中原大學<br>化學學系<br>85<br>Calcium phosphate glass have high potential in use as biomedical materials, the composition is similar to human bone. It has been reported that glass-ceramic with bata-calcium metaphosphate is nontoxic. In order to understand their characteristic and practicality, we will discuess the crystallization, physical properties and biocompatibility of low Ca/P molar ratios of calcium phosphate glass. In this study, row materials of calcium phosphate with various molar ratios (CaO/P2O5=0.5∼1.4) will be mixed well and forming matrix glass by conventional method. The p

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18

Kumari, Akanksha. "Effect of Lanthanum and Phosphate Ester Addition on Densification and Dielectric Properties of (Ca, Zr) Modified Barium Titanate." Thesis, 2016. http://ethesis.nitrkl.ac.in/8097/1/2016-MT-214CR2476-lanthanum_and_phosphate.pdf.

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Ferroelectric materials are used in many applications, such as capacitor, sensors, actuators and transducers. Generally, lead based materials (PZT, PMN) have dominated in piezoelectric market because of their excellent dielectric, piezoelectric properties and flexibility in terms of compositional modifications. However, due to toxicity and environmental concerns, PZT is facing global restrictions in its usage in electronic equipment. Till date the properties of developed lead free piezoelectric are not comparable to that of PZT based compositions. The breakthrough made by Liu and Ren et al. in

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19

Chen, Chan Hown, and 陳建豪. "The Crystallization Behavior and Physical Properties Studies of Calcium Phosphate Glass System with Powdered B-Ca(PO3)2 Addition." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/03957382233230604672.

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20

Yu-MingPeng and 彭昱銘. "Research on ABPO4 (A=Li, Na, K; B=Ca, Sr, Ba) of phosphate based phosphors with down-conversion applied in white light emitting diode." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/78960242245296559671.

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博士<br>國立成功大學<br>微電子工程研究所<br>102<br>In 1996, White light emitting diode (WLED) was fabricated by using the blue LED chip and yellow emitting phosphor such as cerium doped yttrium aluminum garnet (YAG:Ce3+) by Nichia, and further developed the major market age. Although the WLED has high brightness and efficiency, it still has some problems such as color variation, low reproducibility, and the prepared phosphor has low thermal stability. Recently, there is a problem with heat generated as the driving current increased due to the high power LED that has developed. That is to say, if heat problem

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21

Xing, Juan. "CA²⁺-selective TRPM channels regulate IP₃-dependent CA²⁺ oscillations in the C. elegans intestine." Diss., 2009. http://etd.library.vanderbilt.edu/available/etd-12012009-145717/.

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22

Wu, Xuqiong. "Ca²⁺-desensitization in smooth muscle : from cyclic nucleotides, telokin, to myosin light chain phosphatase /." 1998. http://wwwlib.umi.com/dissertations/fullcit/9840470.

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23

Brown, Abigail Maureen. "Dopamine depletion alters the balance between Ca²⁺/calmodulin-dependent protein kinase II and protein phosphatase I." Diss., 2007. http://etd.library.vanderbilt.edu/ETD-db/available/etd-07252007-155530/.

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