Dissertations / Theses on the topic 'Boues de phosphate'
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Loutou, Mohamed. "Granulats à base de boues de phosphates : transformations thermiques, propriétés physiques et application." Thesis, Toulon, 2015. http://www.theses.fr/2015TOUL0016/document.
Full textPhosphate sludge generated from beneficiation plants of Moroccan phosphate rocks was investigated at the range [900-1200°C] by X-ray diffraction, scanning electron microscopy, thermal analysis dilatometric analysis and impedance spectroscopy. Mixtures of the phosphates ludge and amendments such as a swelling clay (up to 30 wt.% of the clay), a kaolinitic clay (up to 40 wt.% of the sludge) and a fly ash (65.5 wt.% of the ash) were investigated and their properties (shrinkage, density, water absorption and compressive strength) were measured as a function of temperature and clay addition. The results showed that gehlénite neoformed from lime of decomposed carbonates and breakdown products of clay minerals in the first mixture while labradorite/anorthite was the only neoformed phase in the other blends. Also fluoroapatite (original mineral) resisted heating until fusion in almost samples. A new approach based on the methodology of the experimental design was adopted to assess the effect of the processing factors on the studied properties. The measured properties were mainly controlled by temperature, and the effect of clay addition was less regular. Considering the mixtures densities lightweight agglomerates can be produced at specific conditions. On the other hand, the release ability of phosphorus by LWAs in the presence ofalfalfa plants has been performed. It was found that due to the release of phosphorus by soil embedded pellets the growth of alfalfa plants improved. The sintering process of blends of phosphate sludge and a naturally occurring clay material (0-30 wt.%) was investigated in the range 650-1100°C by using impedance spectroscopy. The results showed that the sintering process was effective between 750 and 1000°C and occurred by melt flow
Loutou, Mohamed. "Granulats à base de boues de phosphates : transformations thermiques, propriétés physiques et application." Electronic Thesis or Diss., Toulon, 2015. http://www.theses.fr/2015TOUL0016.
Full textPhosphate sludge generated from beneficiation plants of Moroccan phosphate rocks was investigated at the range [900-1200°C] by X-ray diffraction, scanning electron microscopy, thermal analysis dilatometric analysis and impedance spectroscopy. Mixtures of the phosphates ludge and amendments such as a swelling clay (up to 30 wt.% of the clay), a kaolinitic clay (up to 40 wt.% of the sludge) and a fly ash (65.5 wt.% of the ash) were investigated and their properties (shrinkage, density, water absorption and compressive strength) were measured as a function of temperature and clay addition. The results showed that gehlénite neoformed from lime of decomposed carbonates and breakdown products of clay minerals in the first mixture while labradorite/anorthite was the only neoformed phase in the other blends. Also fluoroapatite (original mineral) resisted heating until fusion in almost samples. A new approach based on the methodology of the experimental design was adopted to assess the effect of the processing factors on the studied properties. The measured properties were mainly controlled by temperature, and the effect of clay addition was less regular. Considering the mixtures densities lightweight agglomerates can be produced at specific conditions. On the other hand, the release ability of phosphorus by LWAs in the presence ofalfalfa plants has been performed. It was found that due to the release of phosphorus by soil embedded pellets the growth of alfalfa plants improved. The sintering process of blends of phosphate sludge and a naturally occurring clay material (0-30 wt.%) was investigated in the range 650-1100°C by using impedance spectroscopy. The results showed that the sintering process was effective between 750 and 1000°C and occurred by melt flow
Ait, Hak Sara. "Procédés verts et durables pour la valorisation des sous-produits du phosphate : récupération des terres rares et au-delà." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5027.
Full textThis thesis explores innovative methods for recovering rare earth elements (REEs) from byproducts of the phosphate industry, specifically phosphate sludge (PS), phosphogypsum (PG), and evaporation sludge (ES), aiming to enhance REEs supply chains and promote environmental sustainability. A thorough literature review lays the groundwork for the application of advanced experimental techniques, including saline concentration, pH-dependent leaching, flotation, and fractional precipitation and crystallization. The study further incorporates contemporary simulation tools such as CHEMCHAUD and Response Surface Methodology with Box-Behnken Design, optimizing data for effective REEs recovery and by-product recycling. A significant breakthrough in this research is the development of a process that enhances REEs concentration in PS from an initial 0.0418 % REEs to 2.8 % rare earth oxides (REOs), alongside the efficient recovery of high-purity calcium carbonate and silicate. Similarly, for PG and ES, which exhibit comparable properties, a unified process has been developed. This process increases REEs concentrations to 40 % and 80 % REOs from initial concentrations of 0.036 % and 0.1 % REEs, for PG and ES respectively. This process ensures the complete recycling of byproducts through the recovery of high-purity calcium sulfate and sodium fluosilicate. Techno-economic assessments performed using Aspen Plus, particularly focusing on the PG valorization process, confirm the economic viability of the developed process. The research advocates for the scaling of these techniques to pilot implementations, demonstrating their practical benefits and sustainability. By integrating scientific research with solutions to environmental and industrial challenges, this thesis advances academic knowledge and spearheads sustainable practices that address contemporary global issues
Elsamrani, Antoine. "Traitement des eaux pluviales par coagulation-floculation : speciation des éléments traces, influence des anions complexants, et recherche sur le devenir des boues à partir du système de silice-phosphate-FeCl[indice]3." Vandoeuvre-les-Nancy, INPL, 2003. http://docnum.univ-lorraine.fr/public/INPL_T_2003_ELSAMRANI_A.pdf.
Full textZhang, Li Ming. "Caractérisation et biodisponibilité du phosphore de trois types de boues d'épuration urbaines." Vandoeuvre-les-Nancy, INPL, 1991. http://www.theses.fr/1991INPL064N.
Full textGuivarch, Armel. "Valeur fertilisante à court terme du phosphore des boues de stations d'épuration urbaines." Vandoeuvre-les-Nancy, INPL, 2001. http://www.theses.fr/2001INPL033N.
Full textRedmond, Jean Patricia. "Ethnic differences in calcium, phosphate and bone metabolism." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708405.
Full textJoseph, Claude-Alla. "Potentiel de recyclage agricole des boues d'épuration et des cendres de combustion des boues municipales ou agroalimentaires en Amérique du Nord." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/36796.
Full textBiosolids and sludges incinerated ashes (SIA) are valuables sources of nutrients (N, P) and organics matter. During the last decades, a considerable amount of research has been done on biosolids nutrients availability after their application onto agricultural land. But these studies are focused on specific products and performed under different experimental conditions, generating very different results. Therefore, so far, no model has been proposed to predict nitrogen and phosphorus plant availability for biosolids land application. Although the chemical characterization of SIA has been widely examined, there are only a few studies regarding crop responses to this source of P. This study has generated prediction models to evaluate nitrogen and phosphorus plant availability in these products in order to improve their agricultural recycling and avoid environmental risks of pollution. Data were collected from national and international literature in order to design two models to assess and classify nitrogen and phosphorus availability in SIA. Twelve SIA from mono-incinerators located in Canada and the USA were tested for their fertilizing potential in a greenhouse experiment. Then, random forest modeling was used to find out an indicator of prediction of SIA phosphorus availability. Depending on the C/N ratio of non-composted by-products, six categories were defined. i) high mineralization: +66 % relative N effectiveness (RNE) and 5 ≤ C/N, ii) moderate mineralization: +33 % RNE and 5 < C/N ≤ 16, iii) low mineralization: +9 % RNE and 16 < C/N ≤ 38, iv) low immobilization: −9% RNE and 38 < C/N ≤ 90, v) moderate immobilization: −27 % RNE and 90 < C/N ≤ 140, and vi) high immobilization: −55 % RNE and C/N > 140. According to the total molar concentration of Al and Fe in biosolids, phosphorus availability were divided into 4 classes: i) very high (230-400 mmol kg-1), ii) high (401-1100 mmol kg-1), iii) medium (1101-2800 mmol kg-1), and, iv), and low (2801-5132 mmol kg-1). The biomass increases following an SIA application were as high as 29 % and 59 % more than the control for the sandy loam and clayey soil, respectively, but 40% less than for the triple super phosphate (TSP), for both soils. The ray-grass biomass and P uptake increases due to SIA applications were larger than those of rock phosphate (RP) application in the clayey soil, but similar to those in the sandy loam soil. A similar behavior was observed for P uptake, with a maximum increase of 26 % for the clayey soil, and 165 % for the sandy loam soil. The SIA with a PSP of ≥ 54% significantly increased soil available P stocks and saturation. The random forest modeling shows that oxalate extraction is a practical indicator of prediction of SIA phosphorus availability. Also, this modeling shows that SIA Al content is the most influent factor of this availability.
Nguyen, Hung Quoc. "Osteoconduction of calcium phosphate thin film on porous-surfaced implants in rabbit tibiae." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0022/MQ34047.pdf.
Full textWilliams, Bristol Marie. "Effects of tricalcium phosphate coated titanium on adjacent early bone formation." View the abstract Download the full-text PDF version, 2007. http://etd.utmem.edu/ABSTRACTS/2007-005-Williams-index.html.
Full textTitle from title page screen (viewed on July 28, 2008). Research advisor: Joo L. Ong, Ph.D. Document formatted into pages (iv, 36 p. : ill.). Vita. Abstract. Includes bibliographical references (p. 33-36).
Lee, Goonhee. "Selective laser sintering of calcium phosphate materials for orthopedic implants /." Digital version accessible at:, 1997. http://wwwlib.umi.com/cr/utexas/main.
Full textAppleford, Mark Ryan. "Trabecular calcium phosphate scaffolds for bone regeneration." View the abstract Download the full-text PDF version (on campus access only), 2007. http://etd.utmem.edu/ABSTRACTS/2007-009-Appleford-index.html.
Full textTitle from title page screen (viewed on October 8, 2007). Research advisor: Joo L. Ong, Ph.D. Document formatted into pages (xiii, 128 p. : ill.). Vita. Abstract. Includes bibliographical references (p. 106-114).
Vanden, Bossche Hugues. "Devenir du phosphore apporté sur les sols et risques de contamination des eaux de surface : cas des boues de stations d'épuration /." Rennes : Géosciences-Rennes, 2003. http://catalogue.bnf.fr/ark:/12148/cb39074705p.
Full textSouidi, Rania. "Récupération du phosphore à partir des eaux usées sous la forme de vivianite en utilisant la méthode d'électrocoagulation." Master's thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/69820.
Full textNitrogen and phosphorus are causing environmental problems leading to environmental stress on aquatic ecosystems such as eutrophication and toxicity. To counteract these impacts, the use of advanced treatment processes is required to meet the strict discharge regulations. An annual increase in nutrient use by society is observed while global phosphorus (P) and potassium (K) reserves are becoming limited. Given their importance in all life, the recoveryof these nutrients from waste water has gained the attention of researchers and has become a highly important research field. Waste water treatment plants (WWTPs) are considered one of the important accumulation points of phosphorus with around 1.3 million tons of P-removed globally per year via sewage treatment (Li et Li 2017). P-recovery from wastewater could thus cover around 15-20% of the global phosphorus demand (Yuan et al. 2012). Therefore, WWTPs are now considered as Water Resource Recovery Facilities (WRRFs), a place where biowaste valorization and management are pursued. Electrochemical processes can be used as tertiary treatment for P-removal (Tran et al. 2012). Nowadays, it is also gaining the interest of researchers as a new tool for nutrient recovery processes such as electrodialysis, electrocoagulation, electrochemical magnesium dosage, etc.Based on a literature review, it could be concluded that all these processes have currently only been studied at pilot-scale, and full-scale application still needs more investigation and research. In this research project, an electrocoagulation technique was applied for the first time to recover phosphorus from wastewater as vivianite. In fact, vivianite phosphorus recovery, an innovative practice, has attracted considerable attention for its natural ubiquity, easy accessibility and foreseeable economic value (Wu et al. 2019). The proposed electrocoagulation process uses a sacrificial iron anode to produce ferrous ions formed during anode dissolution,reacting with ions in wastewater, in particular PO₄³⁻ , HPO₄²⁻ et H₂PO₄ , resulting in the formation of vivianite, Fe₃(PO₄)₂,8H₂O, that can be used in different types of application : slow release fertilizer, Li-ion battery, paint . . . As part of this project, electrochemical modelling with PHREEQC was used to study the dissolution of the iron anode, the optimal conditions for vivianite precipitation, the factors limiting its formation and the monitoring of the precipitation process in a complex wastewater matrix. PHREEQC was found to be a powerful tool to perform speciation calculations and the evaluation of the saturation index which determines the rate of precipitation. The experimental part of the work studied the recovery of vivianite using electrocoagulation. This recovery was evaluated in lab-scale reactors operating in batch mode and in continuous mode in order to evaluate respectively, the recovery of vivianite as a new route of recovery of P and the kinetics of its precipitation at different pH values.
Scheiner, Javier David Revel Jean-Claude Guiresse Agnès Maritchù. "Spéciation du carbone, de l'azote et du phosphore de différentes boues de stations d'épuration au cours de leurs incubations contrölées dans deux types de sol." Toulouse : INP Toulouse, 2008. http://ethesis.inp-toulouse.fr/archive/00000379.
Full textVANDEN, BOSSCHE Hugues. "Devenir du phosphore apporté sur les sols et risques de contamination des eaux de surface. Cas des boues de stations d'épuration." Phd thesis, Université Rennes 1, 1999. http://tel.archives-ouvertes.fr/tel-00003703.
Full textVanden, Bossche Hugues. "Devenir du phosphore apporte sur les sols et risques de contamination des eaux de surface. Cas des boues de stations d'epuration." Rennes 1, 1999. http://www.theses.fr/1999REN10143.
Full textHirvinen, Laura J. M. "Influence of bone cements on bone screw interfaces in the third metacarpal and metatarsal bones of horses." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1243434636.
Full textCaione, Gustavo. "Avaliação de fontes de fósforo no desenvolvimento, produtividade e composição bromatológica de cana-de-açúcar /." Ilha Solteira : [s.n.], 2011. http://hdl.handle.net/11449/98783.
Full textAbstract: With the expansion of sugar cane in areas that are not traditional in her cultivation, there is need of study the management of fertilizer, mainly phosphorus (P), since it's the nutrient that most limits the production in the tropics. The aim of this study was to compare the effect of phosphorus sources over two sugarcane cultivars. The study was carried out in Alta Floresta, Mato Grosso State, Brazil, in a Hapludox soil, during the period November 2007 to July 2010. The experimental design was randomized blocks, in a 4x2 factorial scheme, being evaluated the effect of P sources (bone flour, Arad phosphate, and triple superphosphate), at a 100 kg P2O5 ha-1 dose, a control without nutrient application, and the IAC86-2480 and SP79-1011 cultivars, with four replications. The assessments were conducted during the first three crop cycles. Was evaluated the plant height, stalk diameter, number of stalks, weight of a plant, yield of green and dry matter, concentration of P in the plant, export of P, Brix, chemical composition and soil chemical analysis. Major effects of phosphorus fertilization were observed in the sugar cane plant. In the second and third cycle, the residual effect of phosphorus fertilization did not influence the yield. The bone flour showed her self to be more effective in supplying P to the sugar cane and the availability of nutrients in the soil. The P sources had no influence on the chemical composition of sugar cane. The variety IAC86-2480 showed better results compared to SP79-1011, being the most indicated for the region as sugar cane forage
Orientador: Francisco Maximino Fernandes
Coorientador: Anderson Lange
Banca: Antonio Fernando Bergamaschine
Banca: William Natale
Mestre
Scheiner, Javier David. "Spéciation du carbone, de l'azote et du phosphore de différentes boues de stations d'épuration au cours de leurs incubations contrölées dans deux types de sol." Toulouse, INPT, 2005. http://ethesis.inp-toulouse.fr/archive/00000379/.
Full textCaione, Gustavo [UNESP]. "Avaliação de fontes de fósforo no desenvolvimento, produtividade e composição bromatológica de cana-de-açúcar." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/98783.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Com a expansão da cana-de-açúcar em áreas nas quais não é tradicional seu cultivo, há a necessidade de se estudar o manejo da adubação, principalmente do fósforo (P), que é o nutriente que mais limita a produção em regiões tropicais. Objetivou-se, com este trabalho, comparar o efeito de fontes de P, em duas variedades de cana-de-açúcar. O experimento foi realizado no município de Alta Floresta - MT, Brasil, em Latossolo Vermelho-Amarelo distrófico, durante o período de novembro de 2007 a julho de 2010. O delineamento experimental utilizado foi o de blocos casualizados, em esquema fatorial 4x2, sendo avaliados os fatores fontes de P (farinha de ossos, fosfato de Arad e superfosfato triplo), na dose de 100 kg ha-1 de P2O5, acrescidas de um controle, sem aplicação do nutriente, e as variedades IAC86-2480 e SP79-1011, com quatro repetições. As avaliações foram efetuadas durante os três primeiros ciclos da cultura. Avaliou-se a altura de plantas, diâmetro de colmos, número de colmos, massa de uma planta, produtividade de matéria verde e seca, concentração de P na planta, exportação de P, ºBrix, composição bromatológica e análise química do solo. Maiores efeitos da adubação fosfatada foram observados na cana-planta. No segundo e terceiro ciclo, o efeito residual da adubação fosfatada não influenciou na produtividade da cultura. A farinha de ossos demonstrou ser mais eficiente no suprimento de P para a cana-de-açúcar e na disponibilidade do nutriente no solo. As fontes de P não influenciaram na composição bromatológica da cana-de-açúcar. A variedade IAC86-2480 mostrou melhores resultados em relação a SP79-1011, sendo a mais indicada para a região como cana-de-açúcar forrageira
With the expansion of sugar cane in areas that are not traditional in her cultivation, there is need of study the management of fertilizer, mainly phosphorus (P), since it’s the nutrient that most limits the production in the tropics. The aim of this study was to compare the effect of phosphorus sources over two sugarcane cultivars. The study was carried out in Alta Floresta, Mato Grosso State, Brazil, in a Hapludox soil, during the period November 2007 to July 2010. The experimental design was randomized blocks, in a 4x2 factorial scheme, being evaluated the effect of P sources (bone flour, Arad phosphate, and triple superphosphate), at a 100 kg P2O5 ha-1 dose, a control without nutrient application, and the IAC86-2480 and SP79-1011 cultivars, with four replications. The assessments were conducted during the first three crop cycles. Was evaluated the plant height, stalk diameter, number of stalks, weight of a plant, yield of green and dry matter, concentration of P in the plant, export of P, Brix, chemical composition and soil chemical analysis. Major effects of phosphorus fertilization were observed in the sugar cane plant. In the second and third cycle, the residual effect of phosphorus fertilization did not influence the yield. The bone flour showed her self to be more effective in supplying P to the sugar cane and the availability of nutrients in the soil. The P sources had no influence on the chemical composition of sugar cane. The variety IAC86-2480 showed better results compared to SP79-1011, being the most indicated for the region as sugar cane forage
Essman, Stephanie Christine. "Effects of ¹⁵³samarium-ethylenediaminetetramethylene phosphonate on physeal and articular cartilage in juvenile rabbits /." Free to MU Campus, others may purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418016.
Full textPradel, Marilys. "Proposition d'une méthode d'allocation par répartition paramètre-dépendant pour l'Analyse du Cycle de Vie des produits déchet-sourcés - Application aux fertilisants phosphatés boue-sourcés." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEM032/document.
Full textHuman activities produce wastewater that generates sludge, a waste recycled on agricultural soils or for energy recovery. Extensive research is currently undergone on sludge to develop processes that can convert it into products with high-added value. In this context, sludge could move from a fatal waste status to the status of an expected co-product of wastewater treatment. This paradigm shift has implications for the assessment of environmental impacts of "sludge-based" materials with Life Cycle Assessment. Indeed, sludge becomes an expected co-product from the wastewater treatment plant and the environmental burden of their production must be distributed among co-products by means of an allocation factor. This thesis aims at defining a mathematical construction of this allocation factor by combining process- and product-related parameters, integrating de facto the causal relationships between process operations and products generation and the technological reality of the process. The result is a matrix of which each element associates, for each inventory data, an allocation factor to each of the generated co-products. Applied to the production of sludge-based phosphate fertilizers, LCA highlights the major contribution of the production stage compared to the stages of treatment and recovery of the sludge. Nevertheless, the method developed within this thesis to allocate an environmental load to each co-products of an indivisible production system paves the way for a more coherent environmental assessment of waste-based products. This methodology can also be used effectively in the environmental assessment of thermal, chemical or physical separation processes
RIBEIRO, CHRISTIANE. "Obtenção e caracterização de biocerâmicas porosas à base de fosfatos de cálcio processadas com a utilização de albumina." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11660.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP
Guittonny, Larcheveque Marie. "Valorisation d'un compost de boues urbaines en garrigue pour le reboisement : comportement des jeunes arbres d'une plantation et modifications de la dynamique de la vegetation naturelle apres amendement." Phd thesis, Université de Provence - Aix-Marseille I, 2004. http://tel.archives-ouvertes.fr/tel-00008812.
Full textBoigelot, Romain. "Gazéification de déchets organiques dans un réacteur à flux entrainé : impact des inorganiques sur le fonctionnement du réacteur et choix des céramiques réfractaires." Phd thesis, Université d'Orléans, 2012. http://tel.archives-ouvertes.fr/tel-00835075.
Full textZhong, Ming. "Apoptotic signaling pathways in mammalian growth plate chondrocytes." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33993.
Full textLitz, Fernanda Heloisa. "Biodisponibilização do fósforo, incremento de energia e digestibilidade de nutrientes na dieta de frangos de corte contendo exoenzima fitase." Universidade Federal de Uberlândia, 2013. https://repositorio.ufu.br/handle/123456789/13079.
Full textObjetivou-se avaliar o efeito da utilização da exoenzima fitase e de outras fontes minerais sobre a biodisponibilização do fósforo, o incremento de energia da ração e a digestibilidade de nutrientes. Os tratamentos foram: Sorgo com fosfato bicálcico (SFB), milho com fosfato bicálcico (MFB), sorgo com farinha de carne e ossos (SFCO), sorgo com fitase com (SFV) e sem valorização de energia e aminoácidos (SFNV). Foram 1400 aves para as análises de desempenho determinou-se o consumo de ração, peso vivo, conversão alimentar real e tradicional e a viabilidade. Para as análises de digestibilidade aos 15 dias foram utilizadas 80 aves, que foram submetidas a coleta total de excretas, já para a composição de carcaça e mineralização das tíbias foram utilizadas 6 aves por tratamento, onde procedeu-se a determinação dos teores de matéria seca, proteína bruta, extrato etéreo, matéria mineral, energia bruta da carcaça, e cálcio e fósforo das tíbias e carcaça. Os dados foram submetidos a análise de variância e as médias comparadas pelo teste de Tukey 5% e a viabilidade pelo teste Kruskal-Wallis. Não houve diferenças estatísticas para o desempenho aos 7 dias de idade e aos 14 somente o peso vivo foi menor para o MFB, já aos 42 dias, o peso vivo foi maior para o SFB comparado com o MFB. A digestibilidade aos 15 dias não houve diferença estatística. Para a composição da carcaça, o SFV apresentou maior valor da porcentagem de extrato etéreo. A porcentagem de cálcio do SFB e MFB foram menores comparado com o SFNV e iguais para SFCO e SFV, e para o teor de fósforo, o SFV e SFNV apresentaram maiores valores. A enzima fitase exógena é capaz de hidrolisar o fitato de origem vegetal e liberar o fósforo para assimilação pelos animais, atuando assim como substituta de fontes vegetais de fósforo.
Mestre em Ciências Veterinárias
Braux, Julien. "Influence d'un phosphate de calcium substitué en strontium sur la physiologie de l'ostéoblaste humain en culture et évaluation de son potentiel de réparation osseusse chez la souris." Phd thesis, Université de Reims - Champagne Ardenne, 2011. http://tel.archives-ouvertes.fr/tel-00591069.
Full textFarrow, Emily. "Molecular Genetic Analysis of FGF23 Bioactivity in the Bone-Kidney Endocrine Axis." Thesis, 2009. http://hdl.handle.net/1805/1890.
Full textHeritable disorders of phosphate handling are the most common cause of hypophosphatemic rickets in developed countries. Isolated renal phosphate wasting and subsequent low serum phosphate concentrations may result from a number of genetic disorders that include: autosomal dominant hypophosphatemic rickets (ADHR), X-linked hypophosphatemic rickets (XLH), and autosomal recessive hypophosphatemic rickets (ARHR). Fibroblast growth factor-23 (FGF23), identified as the causative gene in ADHR, is produced in bone and plays a central role in kidney phosphate regulation. Increased serum concentrations of FGF23 lead to renal phosphate wasting through down regulation of renal sodium-phosphate co-transporters. However, the molecular mechanisms of FGF23 bioactivity in hormonal phosphate regulation are largely unknown. An experimental focus of this dissertation was to investigate the molecular mechanisms of FGF23-mediated phosphate regulation in the bone-kidney hormonal axis. To this end, the role of Dentin Matrix Protein 1 (DMP1), newly identified as the gene responsible for ARHR, was further defined by the identification of a novel large deletion as well as testing the molecular consequences of DMP1 mutations. FGF23 requires a signaling complex composed of Klotho and an FGFR for bioactivity, however, the location and composition of the signaling complex is unknown. Klotho localizes to the renal distal convoluted tubule, whereas the sodium phosphate co-transporters are expressed within the renal proximal tubules. The molecular mechanisms of FGF23 signaling were investigated by isolating a novel marker of FGF23 bioactivity using array technology, determining the location of initial FGF23 signaling in the kidney, and by identifying a novel mutation in a receptor upstream of FGF23 production. Taken together, these results increase the knowledge of the molecular mechanisms of phosphate homeostasis in relation to FGF23 bioactivity, leading to the identification of potentially novel therapeutic targets.
indefinitely
Timmerman, Kyle L. "The effect of training status and an acute bout of endurance exercise on osteoblast proliferation and alkaline phosphatase activity." 2003. http://www.oregonpdf.org.
Full textScheiner, Javier David. "Spéciation du Carbone, de l'Azote et du Phosphore de différentes boues de stations d’épuration au cours de leurs incubations contrôlées dans deux types de sol." Phd thesis, 2005. http://oatao.univ-toulouse.fr/7515/1/scheiner.pdf.
Full text"Development of an immunoassay for tartrate-resistant acid phosphatase and its use in the monitoring of bone metabolism." Chinese University of Hong Kong, 1993. http://library.cuhk.edu.hk/record=b5887784.
Full textThesis (Ph.D.)--Chinese University of Hong Kong, 1993.
Includes bibliographical references (leaves 219-251).
Chapter CHAPTER I --- LITERATURE REVIEW
Chapter 1 --- The structure of bone --- p.2
Chapter 1.1. --- The cortical bone --- p.3
Chapter 1.2. --- The cancellous bone --- p.3
Chapter 2 --- The composition of bone --- p.3
Chapter 2.1. --- Bone minerals --- p.4
Chapter 2.2. --- The organic matrix --- p.4
Chapter 2.3. --- The bone cells --- p.9
Chapter 2.3.1. --- The osteoblast and the osteocyte --- p.9
Chapter 2.3.2. --- The osteoclast --- p.11
Chapter 3 --- Bone turnover - modelling and remodelling of bone --- p.13
Chapter 3.1. --- Postulated sequence of bone remodelling --- p.14
Chapter 4 --- Regulation of bone resorption --- p.16
Chapter 4.1. --- Role of osteoblast and the lining cell on bone resorption --- p.17
Chapter 5 --- Regulation of bone formation --- p.19
Chapter 6 --- Effects of systemic hormones and local factors on bone metabolism --- p.20
Chapter 6.1. --- Parathyroid hormone --- p.20
Chapter 6.2. --- "1,25-dihydroxyvitamin D3" --- p.22
Chapter 6.3. --- Calcitonin --- p.23
Chapter 6.4. --- Prostaglandins --- p.23
Chapter 6.5. --- Sex hormones --- p.24
Chapter 6.6. --- Glucocorticoid --- p.26
Chapter 6.7. --- Growth hormone --- p.27
Chapter 6.8. --- Insulin --- p.28
Chapter 6.9. --- Thyroid hormones --- p.29
Chapter 6.10. --- Other systemic and local factors --- p.30
Chapter 7 --- Indices of bone turnover --- p.34
Chapter 8 --- Non-biochemical indices of bone metabolism --- p.34
Chapter 8.1. --- Radionuclide bone scan --- p.34
Chapter 8.2. --- Radiokinetic assessment --- p.35
Chapter 8.3. --- Bone biopsy --- p.35
Chapter 8.4. --- Bone densitometry --- p.36
Chapter 9 --- Biochemical indices of bone metabolism --- p.37
Chapter 10 --- Biochemical markers of bone formation --- p.38
Chapter 10.1. --- Alkaline phosphatase --- p.38
Chapter 10.1.1. --- Role and origin of bone alkaline phosphatase isoenzyme --- p.39
Chapter 10.1.2. --- Measurement of bone alkaline phosphatase --- p.41
Chapter 10.1.2.1. --- Heat inactivation --- p.42
Chapter 10.1.2.2. --- Chemical inactivation --- p.43
Chapter 10.1.2.3. --- Immunological methods --- p.44
Chapter 10.1.2.4. --- High performance liquid chromatography --- p.45
Chapter 10.1.2.5. --- Gel electrophoresis --- p.45
Chapter 10.1.2.6. --- Isoelectric focusing --- p.47
Chapter 10.2. --- Osteocalcin --- p.48
Chapter 10.3. --- Osteonectin --- p.51
Chapter 10.4. --- Matrix Gla-protein --- p.51
Chapter 10.5. --- Other non-collagenous proteins --- p.52
Chapter 10.6. --- Urinary Gla concentration --- p.52
Chapter 10.7. --- Collagen peptides and extension peptides --- p.54
Chapter 11 --- Biochemical markers of bone resorption --- p.55
Chapter 11.1. --- Urine hydroxyproline --- p.55
Chapter 11.2. --- Pyridinium cross-links --- p.58
Chapter 11.3. --- Acid phosphatase --- p.60
Chapter 11.3.1. --- Acid phosphatase isoenzymes --- p.60
Chapter 11.3.2. --- The band 5 acid phosphatase isoenzyme genetics and characteristics --- p.62
Chapter 11.3.3. --- Band 5 acid phosphatase as marker of osteoclastic function --- p.64
Chapter 11.3.4. --- Measurement of osteoclastic acid phosphatase --- p.67
Chapter 11.3.4.1. --- Specific chemical inhibitor --- p.67
Chapter 11.3.4.2. --- Electrophoresis --- p.67
Chapter 11.3.4.3. --- Immunological methods --- p.68
Chapter 12 --- Problems with current biochemical markers of bone metabolism --- p.68
Chapter 13 --- Aims of this study --- p.70
Chapter CHAPTER II --- PURIFICATION OF TARTRATE-RESISTANT ACID PHOSPHATASE AND THE DEVELOPMENT OF AN IMMUNOASSAY FOR IT'S MEASUREMENT
Chapter 1 --- Introduction --- p.72
Chapter 2 --- Materials and methods --- p.75
Chapter 2.1. --- Chemicals and reagents --- p.75
Chapter 2.1.1. --- Apparatus --- p.76
Chapter 2.2. --- Methods --- p.77
Chapter 2.2.1. --- Cord serum --- p.77
Chapter 2.2.2. --- Measurement of tartrate-resistant acid phosphatase activity --- p.77
Chapter 2.2.3. --- Measurement of protein concentration --- p.80
Chapter 2.2.4. --- Purification of TRACP from cord plasma --- p.82
Chapter 2.2.4.1. --- Cation-exchange column chromatography --- p.83
Chapter 2.2.4.2. --- Gel filtration column chromatography --- p.84
Chapter 2.2.4.3. --- Concanavalin A-affinity column chromatography --- p.85
Chapter 2.2.4.4. --- Preparative isoelectric focusing (IEF) --- p.86
Chapter 2.3. --- Characterisation of purified TRACP --- p.90
Chapter 2.3.1. --- Polyacrylamide gel electrophoresis (PAGE) --- p.91
Chapter 2.3.2. --- "Optimum pH, substrate specificity and the effects of potential activators and inhibitors on TRACP activity" --- p.99
Chapter 2.3.3. --- Amino acid composition of purified TRACP --- p.101
Chapter 2.4. --- Methods for raising anti-human TRACP antibody and characterisation of the antiserum --- p.102
Chapter 2.4.1. --- Production of rabbit anti-human TRACP antibody --- p.102
Chapter 2.4.2. --- Determination of the titre of rabbit anti-human TRACP antibody --- p.103
Chapter 2.4.3. --- Immunoblotting analyses for cross reactivity study --- p.103
Chapter 2.4.4. --- Immunohistochemical study for antibody specificity --- p.105
Chapter 2.4.5. --- Cross reactivity study of the rabbit anti-human TRACP antibody to some tissue preparations --- p.107
Chapter 2.5. --- Enzyme linked immunosorbent assay for TRACP --- p.109
Chapter 2.5.1. --- Optimisation and evaluation of the new ELISA method for TRACP --- p.111
Chapter 3 --- RESULTS --- p.113
Chapter 3.1. --- "Precision of methods for the determination of protein, TRACP and phosphate." --- p.113
Chapter 3.2. --- Isolation and purification of TRACP --- p.113
Chapter 3.2.1. --- Concanavalin A affinity chromatography --- p.120
Chapter 3.2.2. --- Isoelectric focusing (IEF) --- p.120
Chapter 3.3. --- Characterisation and homogeneity of purified TRACP --- p.128
Chapter 3.3.1. --- Characterisation of purified TRACP --- p.128
Chapter 3.3.2. --- Homogeneity of purified TRACP --- p.132
Chapter 3.3.3. --- Amino acid composition --- p.136
Chapter 3.4. --- Characterisation of the rabbit anti-human TRACP antibody --- p.136
Chapter 3.4.1. --- Antibody specificity - immunoblotting study --- p.139
Chapter 3.4.2. --- Antibody specificity - cross reactivity with partially purified non-cord plasma TRACP --- p.142
Chapter 3.4.3. --- Antibody specificity - immunohistochemical study --- p.145
Chapter 3.5. --- Enzyme linked immunosorbent assay for TRACP --- p.145
Chapter 3.5.1. --- Optimal concentration of antigen for coating of microtitre plate --- p.145
Chapter 3.5.2. --- Kinetics of reaction with the primary rabbit anti-human TRACP antibody --- p.149
Chapter 3.5.3. --- "Precision, recovery and assay range" --- p.149
Chapter 4 --- DISCUSSION --- p.155
Chapter 4.1. --- Purification of cord plasma TRACP --- p.155
Chapter 4.2. --- Characterisation of cord plasma TRACP --- p.158
Chapter 4.3. --- Characterisation of rabbit anti-human TRACP antibody --- p.163
Chapter 4.4. --- Enzyme immunoassay for TRACP --- p.165
Chapter CHAPTER III --- STUDY OF SERUM TRACP IN HEALTHY SUBJECTS AND IN PATIENTS WITH BONE RELATED DISEASES
Chapter 1 --- Introduction --- p.168
Chapter 2 --- Materials and methods --- p.171
Chapter 2.1. --- Subjects --- p.171
Chapter 2.1.1. --- Healthy subjects --- p.171
Chapter 2.1.2. --- Patients --- p.172
Chapter 2.1.2.1. --- Post-menopausal women on hormone replacement therapy --- p.172
Chapter 2.1.2.2. --- Hip fracture patients --- p.173
Chapter 2.1.2.3. --- Other patients --- p.174
Chapter 2.3. --- Measurement of other biochemical parameters --- p.175
Chapter 2.3.1. --- Bone alkaline phosphatase --- p.175
Chapter 2.3.2. --- "Measurement of urine hydroxyproline, creatinine, calcium, osteocalcin, thyroid hormones and parathyroid hormone" --- p.176
Chapter 2.4. --- Statistics --- p.178
Chapter 3 --- RESULTS --- p.179
Chapter 3.1. --- Healthy subjects --- p.179
Chapter 3.2. --- Serum TRACP concentration in post-menopausal women before and after hormone replacement therapy --- p.185
Chapter 3.3. --- TRACP concentration in elderly subjects with hip fractures --- p.189
Chapter 3.4. --- Serum TRACP concentrations in patients with other bone related diseases --- p.190
Chapter 3.4.1. --- Hyperthyroidism --- p.194
Chapter 3.4.2. --- Hyperparathyroidism --- p.198
Chapter 3.4.3. --- Haemodialysis --- p.201
Chapter 4 --- DISCUSSION --- p.204
GENERAL DISCUSSION --- p.216
REFERENCES --- p.219