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Dissertations / Theses on the topic 'Iron absorption'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Jan, Mohamed Hamid Jan. "Iron absorption : control and oxidative stress." Thesis, King's College London (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444192.

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2

Kim, Yunji. "Meat Effects on Nonheme Iron Absorption." DigitalCommons@USU, 1991. https://digitalcommons.usu.edu/etd/5366.

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Studies were undertaken to investigate if gastric acidity and iron chelation to a meat component enhance nonheme iron absorption. Cereal meals, with and without added proteins, were gavaged into iron-deficient rats. The role of iron chelation was investigated by adding sodium phytate, an iron chelator implicated with decreased iron absorption, to the meals. The role of gastric acidity was investigated by treating the rats with cimetidine, which inhibits gastric acid production. In rats with normal acid production, beef, pork and chicken enhanced iron absorption when phytate had been added to t

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3

Hutchinson, Carol. "Iron absorption and serum non-transferrin bound iron in humans." Thesis, King's College London (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429314.

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4

Storcksdieck, Stefan. "Dietary factors influencing non-heme iron absorption /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16795.

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5

Wawer, Anna. "Strategies to improve non-haem iron absorption." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/48744/.

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Iron deficiency anaemia is one of the most prevalent nutritional deficiency disorders in the world. Food iron fortification is a widely used strategy to reduce the risk of deficiency but presents a major challenge to the food industry. The more bioavailable forms of iron, such as ferrous gluconate, cause adverse organoleptic changes when added to foods. The primary aim of the work described in this thesis was to test whether alginate would bind soluble forms of iron and thereby maintain its bioavailability. Initial in vitro studies demonstrated that alginate solutions and beads loaded with fer

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6

Shiono, Yuhta, Hisao Hayashi, Shinnya Wakusawa, et al. "Body iron stores and Iron restoration rate in Japanese patients with chronic Hepatitis C as measured during therapeutic Iron removal revealed neither Increased body iron stores nor effects of C282y and H63d mutations on iron indices." Nagoya University School of Medicine, 2001. http://hdl.handle.net/2237/5367.

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7

Shears, G. E. "Haem and non-haem iron absorption and their regulation." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383814.

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8

Cook, W. B. "Iron absorption in health and inflammatory bowel disease." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597923.

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Chapter 1 provides a general introduction while Chapter 2 investigates the relationships between dietary iron intake, disease activity and quality of life (QOL) in patients with IBD. Results indicated that non-haem iron intake was significantly associated with iron requirements for IBD patients but not healthy controls. Interestingly, for iron replete IBD patients, a significant positive correlation between iron intake and disease activity was noted. Correlation between QOL and iron intake was also observed. Chapter 3 investigated the acute effects of a single oral dose of ferrous sulphate on

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9

Sattarzadeh, Masoud. "Determination of iron & iodine absorption from iron and iodine double-fortified salt." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq28793.pdf.

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10

Leong, Weng-In. "Regulation of iron absorption during infancy and iron transfer to milk during lactation /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.

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11

Tidehag, Per. "Iron absorption and iron status related to diet an experimental and epidemiological study /." Doctoral thesis, Umeå, Sweden : Dept. of Nutritional Research and Prosthetic Dentistry and the Biophysics Laboratory, Umeå University, 1995. http://books.google.com/books?id=f9BpAAAAMAAJ.

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12

Ummadi, Madhavi. "Uptake, Absorption, and Adsorption Kinetics of Ferrous and Ferric Iron in Iron-replete and Iron-deficient Rats." DigitalCommons@USU, 1994. https://digitalcommons.usu.edu/etd/5409.

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Various concentrations of ferrous and ferric iron solutions were held at room temperature for 60 min before they were assayed for ferrous iron, which may be unstable due to oxidation. The ferrous and ferric solutions (in pH 2 HCl) were maintained as such for 60 min without the use of chelators. There was no significant oxidation of ferrous iron. Also, four different levels of each ferrous and ferric iron were injected into proximal duodenal loops of rat intestine and uptake was determined at four different time intervals. Two iron-replete rats were assigned to each of the treatments. The in si

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13

Oti-Boateng, Peggy. "Effects of dietary calcium on intestinal non-haem iron absorption during weaning." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09pho881.pdf.

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Corrigenda tipped to title page. Bibliography: leaves 313-353. This study investigated the iron status and dietary intakes in 6-24 month old children in Australia and Ghana and assessed the effects of dietary calcium on intestinal iron absorption. The true prevalence of non-anaemic iron deficiency (NAID) and iron deficiency anaemia (IDA) and dietary intakes in infants and toddlers from a broad socio-economic background were assessed by haematological and biochemical parameters, semi-quantitative diet recall and anthropometric measurements. The high prevalence of iron deficiency and anaemia fou

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14

Thomas, Carla. "The validation and use of the rat intestinal epithelial cell line 6 (IEC-6) to study the role of ferroportin1 and divalent metal transporter 1 in the uptake of iron from Fe(II) and Fe(III)." University of Western Australia. Physiology Discipline Group, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0019.

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[Formulae and special characters can only be approximated here. Please see the pdf version of the abstract for an accurate reproduction.] Iron is vital for almost all living organisms by participating in a wide variety of metabolic processes, including oxygen transport, DNA synthesis, and electron transport. However, iron concentrations in body tissues must be tightly regulated because excessive iron leads to tissue damage, as a result of formation of free radicals. In mammals since no controlled means of eliminating unwanted iron has evolved, body iron balance is maintained by alterations i

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15

Zhang, Fan. "Iron absorption and regulatory mechanisms: effects of fructooligosaccharide and other prebiotics." HKBU Institutional Repository, 2017. https://repository.hkbu.edu.hk/etd_oa/413.

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Iron deficiency is the most prevalent nutrient deficiency in the world, leading to long-term developmental and health consequences in populations at risk. Also known as prebiotics, non-digestible oligosaccharides such as fructooligosaccharide (FOS), inulin, galactooligosaccharide (GOS) and lactulose resist digestion by gastric acid and pancreatic enzymes in vivo, but are preferentially fermented by beneficial intestinal bacteria once they reach the colon. Prebiotics have been shown to increase the absorption of minerals such as iron from diets, but results from studies reported in the literatu

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16

Frazer, David Michael. "The molecular basis of intestinal iron absorption and its regulation /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17396.pdf.

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17

Raja, K. "Studies on the mechanism and regulation of intestinal iron absorption." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383490.

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18

Swindell, T. E. "Dietary and physiological factors influencing iron absorption in the rat." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381746.

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19

Shirali, Sima. "Regulation of duodenal iron absorption and role of haem biosynthesis." Thesis, King's College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397799.

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20

Ahmad, Fuzi Salma F. "The effect of dietary components on non-haem iron absorption in healthy and iron-deficient women." Thesis, University of Chester, 2017. http://hdl.handle.net/10034/620397.

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Two clinical trials investigating the effect of modulating two dietary components, tea containing polyphenols and vitamin D aimed at improving non-haem iron absorption and iron status recovery, were carried out in a cohort of healthy and iron deficient UK women, respectively. Tea has been shown to be a potent inhibitor of non-haem iron absorption but it remains unclear whether the timing of tea consumption relative to a meal influences iron bioavailability, with limited published evidence, especially in human trials. The aim of the first study was to investigate the effect of tea consumption o

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21

Laftah, Abas Humood. "Role of haem biosynthesis in the regulation of intestinal iron absorption." Thesis, King's College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249734.

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22

Solanky, Nita Shantilal. "The molecular mechanisms of duodenal and placental iron absorption during pregnancy." Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1446479/.

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During pregnancy duodenal iron absorption, placental transfer, and the release of iron from stores in the mothers liver, are increased to meet the requirements of the developing foetus. The regulatory mechanisms co-ordinating these events are for the first time illustrated here. Various proteins, notably hepcidin and hfe, have been implicated as having a role in iron homeostasis. By quantitating the expression of hepcidin and the duodenal iron transporters: DMT1, Tfr1, Dcytb and Ireg1, in mice raised on iron-deficient and iron-loaded diets, this study confirms that hepcidin expression is posit

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23

Pointon, Jennifer Jane. "The genetics of haemochromatosis." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249468.

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24

Moberg, Wing Anncatherine. "Absorption and accumulation of cadmium from cereal grains." Doctoral thesis, Umeå universitet, Patologi, 1993. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100549.

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Cadmium (Cd) is a potentially toxic trace element. Cereal grains contribute one-third to one-half of the Cd exposure via the diet. Among cereal grains, wheat generally contains the highest Cd concentration and the bran and germ fractions contain more Cd than the endosperm. An increase in the consumption of unrefined grains may cause an increase in the body burden of Cd if an increase in the exposure to Cd via the diet leads directly to increased Cd absorption and accumulation. However, there is evidence that certain factors may reduce the availability of Cd for absorption from the diet. The pu

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25

Barrett, Jon Fenton Roy. "Stable isotopes and the absorption of non-haem iron during human pregnancy." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308775.

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26

Barrow, Dalna Michelle. "The characterization of two novel genes involved in mammalian intestinal iron absorption." Thesis, King's College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409577.

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27

Chakraborty, Rupak. "Investigation of sub-bandgap absorption in iron pyrite : optical and electrical measurements." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87956.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 67-70).<br>We investigate sub-bandgap absorption in pyrite FeS₂ single-crystals, using both natural and synthetic crystals. Both types of crystals show non-negligible magnitudes of sub-bandgap absorption. To test whether the origin of the residual sub-bandgap absorption is partially due to a lower bulk bandgap than previously thought, we conduct temperature-dependent electrical measurements on natural and synthet

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28

Kolesov, Roman L. "Optical control of nuclear resonant absorption: theory and experiment." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/380.

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Modification of nuclear resonant absorption by means of laser radiation is analyzed both theoretically and experimentally. Theoretical analysis is done on the basis of four-level model of atom. This model includes both electronic and nuclear excitations. It is predicted that under coherent laser driving nuclear resonant Mossbauer absorption can be significantly modified, e.g. new Mossbauer resonances can appear, some of the existing resonances can vanish, both can be Rabi-split, broadened by laser action. In addition, it is predicted that Mossbauer absorption can be completely suppressed due t

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29

Snape, Susan Dawn. "Studies on the mechanism of intestinal iron absorption with special reference to its intracellular transport." Thesis, Open University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254664.

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30

Wallace, Daniel Frederick. "The HFE gene in haemochromatosis and liver disease." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325304.

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31

Abd, Rashed Aswir. "The influence of dietary components on non-haem iron absorption by in vitro study." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.551153.

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Dietary components have been known for many years to have a variable effect on non-haem iron uptake in humans. Since it is impractical and expensive to employ in vivo methods for iron uptake, in this study, a human intestinal Caco-2 cell line was utilised for investigation of the effect of dietary components on non-haem iron uptake. Using a radioactive iron isotope 55Fe, it is possible to observe iron uptake activity in Caco-2 cell whether or not the dietary components are present in the media. Several dietary components including ascorbate, J3-carotene, amino acids, organic acids and two type

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32

Mantalidi, A. "Understanding the formation of gold and iron based nanomaterials using X-ray absorption spectroscopy." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1530968/.

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In this thesis, X-ray Absorption Spectroscopy (XAS) is used to understand the speciation of molecular precursors in various reaction mixtures, elucidate potential effects on their structure from the presence of solvents and other reagents present, and monitor in situ their thermal decomposition leading to nanoparticle formation. XAS is a prominent technique for determining the local structure and oxidation state of an element of choice. Since long range order is not a requirement for XAS to be applied, it constitutes an ideal technique to study materials in solution phase. Chapter 1 provides a

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33

Aslam, Mohamad Farshard. "The efficacy of nanoparticulate iron in correcting anaemia and its mechanisms of intestinal absorption." Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709354.

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34

Stacey, Rebecca Jane. "Lipid residues from late Iron Age pottery : patterns and processes in their absorption and preservation." Thesis, University of Bradford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516719.

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35

Kakpovbia, A. E. "Kinetics of the oxidative absorption of H2Ì²S from gas streams by Iron chelate solutions." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380598.

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36

Heuvel, Elisabeth Gertruda Hendrika Maria van den. "Application of dual stable isotope techniques to measure absorption of calcium, magnesium and iron in man." [Maastricht : Maastricht : Universiteit Maastricht] ; University Library, Maastricht University [Host], 1998. http://arno.unimaas.nl/show.cgi?fid=8251.

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37

Shawki, Ali. "The Functional Properties and Intestinal Role of the H⁺-Coupled Divalent Metal-Ion Transporter 1, DMT1." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1448037106.

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38

Krauth, Oliver. "Investigation of the surface enhanced infrared absorption in the case of carbon monoxide on iron thin films." [S.l. : s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=961929510.

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39

Jin, Ji-yun. "Boron chemistry in selected Virginia soils and hydroxy aluminum and iron systems." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/54304.

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Greenhouse and laboratory experiments were conducted to investigate the distribution of native B, the availability of native and applied B in 14 Virginia soils and the specific reactions of B in soil and hydroxy Al and Fe systems. Total B in the 14 soils ranged from 21.5 to 96.3 mg kg⁻¹. Only a small portion of the total B was in soil solution, non-specifically and specifically adsorbed forms and Mn minerals. These fractions of B are readily available to plants. A large part of the total B was associated with non-crystalline and crystalline Al and Fe minerals and soil silicates. These forms o

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40

Dahl, Evelina, and Ida Berge. "Dietary factors and food preparation techniques related to iron absorption : Knowledge and practice in the Kandal Province, Cambodia." Thesis, Umeå universitet, Institutionen för kostvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-49283.

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Introduction Malnutrition and coexisting micronutrient deficiencies are common in the developing world. A high prevalence of anemia is found in Cambodia with children and women being the most affected. Anemia is defined as lack of red blood cells, resulting in impaired blood function and poor oxygen transport. Iron deficiency (ID) is often an underlying factor of anemia. Diet modifications to increase intake and absorption of iron can to some extent prevent iron deficiency anemia (IDA), which is often caused by lack of iron in the diet. Objective The aim was to study knowledge and practice reg

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41

Kaspar, Jennifer Deloris. "Evaluating the extent of delocalization in mixed-valence iron dimers using X-ray absorption near-edge structure spectroscopy /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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42

Pountney, David James. "Studies of the mechanism and regulation of intestinal iron absorption with special reference to a mucosal surface reducing activity." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339140.

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43

Zweigel, Catarina. "Validering av metoder för analys av Cu, Fe och Na i processvatten med AAS-grafitugn." Thesis, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-20631.

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<p>Södra Cell Mörrum is one of the five paper pulp plants that are included in Södra Cell, and the paper pulp that is produced here is not only sold to Swedish paper mills. Most of the paper pulp is exported to different countries in Europe. In the manufacturing process the plant needs different kind of process water and there are guideline values for how much copper, iron and sodium this water is allowed to contain. Analyzes of this water is in the current situation done with an atomic absorption spectrometric instrument (AAS-instrument) with a flame.</p><p> </p><p>Measurements done with flam

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44

Niculaes, Dina. "Iron oxide nanocubes for magnetic hyperthermia." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/441740.

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Durant la meva tesi s’han desenvolupat tres projectes principals, centrats en l'estudi de nanosistemes basats en l'ús de nanocubs d'òxid de ferro (IONCs) per a la hipertèrmia magnètica (HM). S’ha demostrat l'ús innovador de la configuració de HM per a l'oxidació suau de nanocubs tipus core-shell Fe1-xO/Fe3-δO4 a una única fase de Fe3O4. Atès que els valors de la taxa d'absorció específica (SAR) dels nanocubs tipus core-shell wüstita/magnetita han estat menors en comparació amb els IONCs de magnetita amb una longitud d’aresta de cub similar, el nucli de FeO s’ha oxidat mitjançant estimulació M

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45

Mabusela, Bongolwethu Professor. "The effect of initial pH on surface properties of ferric ion precipitates formed during microbial oxidation of ferrous ion by Leptospirillum ferriphilum in a CSTR." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2553.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2017.<br>While bioleaching is a proven technology for the efficient recovery of base metals from sulphide minerals, its sustenance is dependent on the continuous availability of ferric ion, Fe3+, in soluble form, in the bioleach liquor. However, the solubility of ferric ion is low at higher pH that it tends to precipitate, resulting in the formation of ferric ion precipitates. The formation of ferric ion precipitates in bio-hydrometallurgy decreases the leaching efficiency by trapping the leached metals in solution

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46

Nakajima, Sho. "Mechanistic and Synthetic Studies on Iron-Bisphosphine-Catalyzed Cross-Coupling Reactions of Alkyl Halides." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225616.

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47

Camacho, Julianna G. "The influence of calcium on the inhibition of arsenic desorption from treatment residuals in extreme environments." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3198.

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One of the most toxic environmentally mobile compounds found in water is arsenic. It has been used as a pesticide to control insects, fungi, weeds and rodents since the early part of this century because of its high toxicity. Sorption of toxic metals onto a metal oxy-hydroxide is the most popular and practical arsenic removal method from contaminated water. Water treatment with oxy-hydroxides creates arsenic containing residuals, which are usually disposed of in landfills. To prevent leaching, stabilization of the solid residuals is required. It has been reported that calcium may inhibit arsen

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48

Boubnov, Alexey [Verfasser], and J. D. [Akademischer Betreuer] Grunwaldt. "Structural studies on iron-based exhaust gas catalysts by means of X-ray absorption spectroscopy / Alexey Boubnov. Betreuer: J.-D. Grunwaldt." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1073204839/34.

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49

Everett, James. "The aggregation and reduction of iron minerals by the Alzheimer's disease peptide ß-amyloid (1-42) : an X-ray absorption study." Thesis, Keele University, 2015. http://eprints.keele.ac.uk/2502/.

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Iron is vital for healthy brain function. However when present in a redox-active form or in excess concentrations it can be toxic. Interestingly, increased levels of redox-active iron biominerals have been shown to exist in Alzheimer’s disease (AD) tissues, including lesions comprised of the AD peptide β-amyloid (Aβ). These iron phases are capable of producing reactive oxygen species, resulting in the generation of oxidative stress manifesting as neuronal injury. As oxidative stress and the accumulation of iron are recognised as early stage events in AD, the presence of redox-active iron may p

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50

Rebellato, Ana Paula 1977. "Biscoitos elaborados com farinhas de trigo fortificadas com ferro : teor do mineral e qualidade físico-química durante a estocagem." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254642.

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Orientador: Juliana Azevedo Lima-Pallone<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-20T21:26:18Z (GMT). No. of bitstreams: 1 Rebellato_AnaPaula_M.pdf: 1287593 bytes, checksum: 661e828d074dab6ac68c3fad61029313 (MD5) Previous issue date: 2012<br>Resumo: No Brasil a ANVISA através da Resolução nº 344 de 2002, instituiu a obrigatoriedade do enriquecimento de farinhas de trigo e milho com ácido fólico e ferro. A deficiência de ferro é apontada como a principal causa da anemia ferropriva. A fortificação

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