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Letteratura scientifica selezionata sul tema "Iron"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Iron"

Caza, Mélissa, François Lépine, Sylvain Milot e Charles M. Dozois. "Specific Roles of the iroBCDEN Genes in Virulence of an Avian Pathogenic Escherichia coli O78 Strain and in Production of Salmochelins". Infection and Immunity 76, n. 8 (9 giugno 2008): 3539–49. http://dx.doi.org/10.1128/iai.00455-08.

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ABSTRACT Avian pathogenic Escherichia coli (APEC) strains are a subset of extraintestinal pathogenic E. coli (ExPEC) strains associated with respiratory infections and septicemia in poultry. The iroBCDEN genes encode the salmochelin siderophore system present in Salmonella enterica and some ExPEC strains. Roles of the iro genes for virulence in chickens and production of salmochelins were assessed by introducing plasmids carrying different combinations of iro genes into an attenuated salmochelin- and aerobactin-negative mutant of O78 strain χ7122. Complementation with the iroBCDEN genes resulted in a regaining of virulence, whereas the absence of iroC, iroDE, or iroN abrogated restoration of virulence. The iroE gene was not required for virulence, since introduction of iroBCDN restored the capacity to cause lesions and colonize extraintestinal tissues. Prevalence studies indicated that iro sequences were associated with virulent APEC strains. Liquid chromatography-mass spectrometry analysis of supernatants of APEC χ7122 and the complemented mutants indicated that (i) for χ7122, salmochelins comprised 14 to 27% of the siderophores present in iron-limited medium or infected tissues; (ii) complementation of the mutant with the iro locus increased levels of glucosylated dimers (S1 and S5) and monomer (SX) compared to APEC strain χ7122; (iii) the iroDE genes were important for generation of S1, S5, and SX; (iv) iroC was required for export of salmochelin trimers and dimers; and (v) iroB was required for generation of salmochelins. Overall, efficient glucosylation (IroB), transport (IroC and IroN), and processing (IroD and IroE) of salmochelins are required for APEC virulence, although IroE appears to serve an ancillary role.

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Zhu, Mingang, Marianne Valdebenito, Günther Winkelmann e Klaus Hantke. "Functions of the siderophore esterases IroD and IroE in iron-salmochelin utilization". Microbiology 151, n. 7 (1 luglio 2005): 2363–72. http://dx.doi.org/10.1099/mic.0.27888-0.

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The siderophore salmochelin is produced under iron-poor conditions by Salmonella and many uropathogenic Escherichia coli strains. The production of salmochelin, a C-glucosylated enterobactin, is dependent on the synthesis of enterobactin and the iroBCDEN gene cluster. An E. coli IroD protein with an N-terminal His-tag cleaved cyclic salmochelin S4 to the linear trimer salmochelin S2, the dimer salmochelin S1, and the monomers dihydroxybenzoylserine and C-glucosylated dihydroxybenzoylserine (salmochelin SX, pacifarinic acid). The periplasmic IroE protein was purified as a MalE–IroE fusion protein. This enzyme degraded salmochelin S4 and ferric-salmochelin S4 to salmochelin S2 and ferric-salmochelin S2, respectively. In E. coli, uptake of ferric-salmochelin S4 was dependent on the cleavage by IroE, and independent of the FepBDGC ABC transporter in the cytoplasmic membrane. IroC, which has similarities to ABC-multidrug-resistance proteins, was necessary for the uptake of salmochelin S2 from the periplasm into the cytoplasm. IroE did not function as a classical binding protein since salmochelin S2 was taken up in the absence of a functional IroE protein. IroC mediated the uptake of iron via enterobactin in a fepB mutant. IroE was also necessary in this case for the uptake of ferric-enterobactin, which indicated that only the linear degradation products of enterobactin were taken up via IroC. PfeE, the Pseudomonas aeruginosa IroE homologue, was cloned, and its enzymic activity was shown to be very similar to that of IroE. It is suggested that homologues in other bacteria are also periplasmic IroE-type esterases of siderophores.

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Kasmaee, Sara, Francesco Tinti e Roberto Bruno. "CHARACTERIZATION OF METAL GRADES IN A STOCKPILE OF AN IRON MINE (CASE STUDY- CHOGHART IRON MINE, IRAN)". Rudarsko-geološko-naftni zbornik 33, n. 2 (2018): 51–59. http://dx.doi.org/10.17794/rgn.2018.2.5.

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Shohail, Hussain Md, Milan Kumar Taye, Long Teron, Nikhil Ranjan Rajkhowa, Mohsina Ahmed e Muslima Firdaus Khan. "Oral iron versus intravenous iron therapy in moderate iron deficiency anemia in pregnancy". New Indian Journal of OBGYN 10, n. 1 (agosto 2023): 167–71. http://dx.doi.org/10.21276/obgyn.2023.10.1.29.

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Roganović, Jelena. "PARENTERAL IRON THERAPY IN CHILDREN WITH IRON DEFICIENCY ANEMIA". Paediatrics Today 11, n. 1 (15 marzo 2015): 24–29. http://dx.doi.org/10.5457/p2005-114.106.

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Dongarwar Tejas Kotecha, Akashkumar. "Intravenous Iron Sucrose versus Oral Iron in Treatment of Iron Deficiency Anemia in Pregnancy: A Randomized Clinical Trial". International Journal of Science and Research (IJSR) 12, n. 2 (5 febbraio 2023): 920–24. http://dx.doi.org/10.21275/sr23214214820.

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Modi, Dr Akshay, Dr Nirmam Dr. Nirmam e Dr Noopur Dr. Noopur. "Effect of Iron Sucrose Infusion in Iron Deficiency Anemia During Pregnancy". Indian Journal of Applied Research 3, n. 10 (1 ottobre 2011): 1–2. http://dx.doi.org/10.15373/2249555x/oct2013/108.

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Naeem, Ayesha, Mazhar Nazir Chattha e Abdul Matin Qaisar. "IRON DEFICIENT MOTHERS". Professional Medical Journal 25, n. 08 (9 agosto 2018): 1173–76. http://dx.doi.org/10.29309/tpmj/18.4584.

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Djazayery, A. "Iron status and socioeconomic determinants of the quantity and quality of dietary iron in a group of rural Iranian women". Eastern Mediterranean Health Journal 7, n. 4-5 (15 settembre 2001): 652–57. http://dx.doi.org/10.26719/2001.7.4-5.652.

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Iron intake and status were investigated in 471 mothers [age range: 16-53 years] from rural areas in Khorramabad, Islamic Republic of Iran. Although average total iron intake was acceptable, only 6.4% of women derived at least 4% of their total intake from animal iron. Average energy and protein intakes were inadequate. Low iron status was seen in 8.2%-28.7%, depending on the parameter used, with 28.3% experiencing iron-deficiency anaemia. Significantly higher animal iron intakes were found in literate or employed women, or those of family size fewer than six people. Increasing employment opportunities, income levels and literacy rates for women will result in better iron intake and status and should receive particular attention in national planning.

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Song, Tingting, Zibin Chen, Xiangyuan Cui, Shenglu Lu, Hansheng Chen, Hao Wang, Tony Dong et al. "Strong and ductile titanium–oxygen–iron alloys by additive manufacturing". Nature 618, n. 7963 (31 maggio 2023): 63–68. http://dx.doi.org/10.1038/s41586-023-05952-6.

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AbstractTitanium alloys are advanced lightweight materials, indispensable for many critical applications1,2. The mainstay of the titanium industry is the α–β titanium alloys, which are formulated through alloying additions that stabilize the α and β phases3–5. Our work focuses on harnessing two of the most powerful stabilizing elements and strengtheners for α–β titanium alloys, oxygen and iron1–5, which are readily abundant. However, the embrittling effect of oxygen6,7, described colloquially as ‘the kryptonite to titanium’8, and the microsegregation of iron9 have hindered their combination for the development of strong and ductile α–β titanium–oxygen–iron alloys. Here we integrate alloy design with additive manufacturing (AM) process design to demonstrate a series of titanium–oxygen–iron compositions that exhibit outstanding tensile properties. We explain the atomic-scale origins of these properties using various characterization techniques. The abundance of oxygen and iron and the process simplicity for net-shape or near-net-shape manufacturing by AM make these α–β titanium–oxygen–iron alloys attractive for a diverse range of applications. Furthermore, they offer promise for industrial-scale use of off-grade sponge titanium or sponge titanium–oxygen–iron10,11, an industrial waste product at present. The economic and environmental potential to reduce the carbon footprint of the energy-intensive sponge titanium production12 is substantial.

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Tesi sul tema "Iron"

Cue´nod, Aure´lie. "Rethinking the bronze-iron transition in Iran : copper and iron metallurgy before the Achaemenid Period". Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:6b4a5d9c-55dc-4569-88c4-0814bc50c6d2.

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Iran, a country rich in mineral resources, has a long history of metal working. Copper objects first appeared in the 7th millennium BC and in the following millennia, copper became the material of choice for the production of many objects. Artefacts of iron began to appear in the mid 2nd millennium BC and by the mid 1st, iron had replaced bronze for most uses, but the reasons for this change remain unclear. This thesis seeks to examine the transition from bronze to iron metallurgy from a new angle. By looking at changes in copper-based metallurgy between the Bronze Age and the Iron Age, it attempts to better understand the context in which iron metallurgy developed. To that end, the results of previously published chemical analyses of over 5000 copper-based objects from Iran and neighbouring regions and the lead isotope analyses of about 380 objects were assembled in a database. The tin, arsenic, nickel, antimony and silver concentrations in particular are studied. The data is divided into 16 metal groups based on the absence or presence of the latter four elements. The study of the main groups allows us to describe interesting new patterns of metal movement and recycling. It appears that before the end of the Bronze Age, a number of copper sources and/or trade routes from both east and west declined, leading to a reliance on more local sources for copper and tin in the Iron Age. The practice of recycling from the 3rd millennium BC onward is also evidenced. Overall, it seems that iron appeared within a thriving bronze industry, with a good access to metal resources and a developed understanding of the possibilities offered by copper (alloying, recycling, mixing…). Was it then the more ‘permanent’ nature of iron that attracted the ancient metal-workers and led to its advent?

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Nuttall, Robert Horan. "Aqueous hydrogen sulphide corrosion of iron, iron/chromium and iron/nickel alloys". Thesis, Robert Gordon University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358471.

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Bramhagen, Ann-Cathrine. "Iron nutrition during early childhood factors influencing iron status and iron intake /". Malmö : Lund University, 2006. http://theses.lub.lu.se/scripta-archive/2006/04/13/med_1297/bramhagen_kappa.pdf.

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Myhrman, Carl. "An Iron Lady for an Iron Throne". Thesis, Södertörns högskola, Institutionen för kultur och lärande, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-23005.

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Syftet med denna uppsats är att undersöka hur kvinnlighet framställs för att konstruera feministikonen Daenerys Targaryen i TV-serien Game of Thrones. För att uppnå mitt syfte har jag analyserat Daenerys karaktär samt personer hon interagerar med i serien. Jag har använt mig av en semiotisk bildanalys. Min teorianknytning utgörs huvudsakligen av feministisk medieforskning samt feministiska åskådningar. Materialet för min studie utgörs av fem scener från serien. Resultaten visar att framställningen av Daenerys karaktär blir en konstruktion av kvinnan med speciella band med naturen som för en kamp mot en mansdominerad kultur.

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Chua-anusorn, Wanida. "Iron oxide deposits in iron overload diseases". Thesis, Chua-anusorn, Wanida (1997) Iron oxide deposits in iron overload diseases. PhD thesis, Murdoch University, 1997. https://researchrepository.murdoch.edu.au/id/eprint/52151/.

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Iron overload diseases such as thalassaemia are a major public health problem in many parts of the world. Excess iron deposited in such tissues occurs in the form of ultrafine particles of iron oxyhydroxide. At low levels of iron loading, the iron(III) oxyhydroxide particles are mostly found in the iron storage protein, ferritin. At higher levels of loading, iron(III) oxyhydroxide particles are found in insoluble aggregates known as haemosiderin. Three different structures of these iron deposits are known: (i) ferrihydrite (5Fe203.9H20), (ii) poorly crystalline goethite (α-FeOOH), and (iii) non-crystalline hydrated iron(III) oxyhydroxide. In this thesis, Mössbauer spectroscopy has been used to study the form of iron oxyhydroxide present in the tissues of thalassaemic patients who had undergone regular blood transfusion and chelation therapy as well as those receiving little, if any, such treatment. The data show a higher fraction of non-haem iron occurs as the goethite-like form in patients undergoing regular transfusion and chelation treatment. The poorly crystalline goethite form was not found in normal human tissues. To define further some of the factors involved in the deposition of these different iron oxides, an iron-loaded rat system was established. Two routes of administration were chosen. The first involved regular administration of red blood cells injected intraperitoneally for up to one year. The second involved the oral administration of carbonyl-iron as a dietary supplement for nearly two years. Mössbauer spectra of livers and spleens at 78 K consisted of a relatively intense central doublet with spectral parameters indicative of paramagnetic or superparamagnetic high-spin iron(III). Many spectra obtained from parenterally iron-loaded spleens and dietary iron-loaded livers also showed a clear sextet at 78 K, which is indicative of the presence of the goethite-like form of iron oxyhydroxide. The relative intensity of this sextet spectral component in the livers from the dietary iron-loaded rats increased significantly with the age of rats. In order to distinguish iron present in the parenchymal versus non-parenchymal cells in the livers, an indirect quantitative assessment of the iron concentration was performed from liver histological sections using computer-assisted morphometric analysis. The goethite-like form increased significantly as the fraction of iron in non-parenchymal cells increased (r = 0.71, p < 0.005), suggesting that its formation may be associated with the nonparenchymal cells. The ultrastructure of the iron oxide deposits and associated organic components was studied using a combination of scanning probe microscopy and transmission electron microscopy. Liver samples with ferrihydrite or goethite-like haemosiderin were studied as well as aggregated ferritin in the form of ferritin crystals, ferrihydrite-like form of haemosiderin shows topographies of iron aggregation similar to In contrast, liver with goethite-like form of Liver tissue with the that found in the ferritin crystals, haemosiderin showed a different topography. Haemosiderin was isolated from a selection of tissues. Crude haemosiderin from patients who had undergone regular blood transfusion and chelation therapy showed a high fraction of goethite-like form of iron oxyhydroxide with a wide range of particle size. Infrared spectroscopy indicated that the iron oxyhydroxide in haemosiderins is associated with organic components. The availability of the different forms of iron oxyhydroxide present in different haemosiderins was assessed using the iron chelator desferrioxamine. The percentage of iron released showed a negative correlation (r = 0.82, p < 0.001) with the percentage of goethite-like iron oxyhydroxide present in these haemosiderins. In summary, these studies indicate that the chemical forms of iron oxyhydroxide deposits are related to their deposition, toxicity and relative ease of removal. The study has implications for the clinical management of different groups of thalassaemic patients.

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Pappas, Adlerburg Nickolas T. "To Make Iron of Iron : A Comprehensive Analytical Study of Spade Shaped Iron Bars". Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-144383.

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This thesis aims to provide adequate analytical information on the spade shaped iron bars of Norrland and central Sweden. While their significance has been thoroughly debated for decades, analytical research on them has been confined to cases of single artefacts or theoretical interpretations of their value, meaning and origin. In this study a comprehensive approach is taken into consideration. Based on X-Ray fluorescence (XRF), scanning electron microscopy (SEM) and metallographical analysis this thesis seeks to facilitate new interpretations on quality, production centres and usage based on analytical results. Aiming to settle some of the long lasting questions regarding the artefacts while producing results which can further the discussion by raising new questions, previously unasked.

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Pappas, Adlreburg Nickolas. "To Make Iron of Iron : A Comprehensive Analytical Study of Spade Shaped Iron Bars". Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-145694.

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Al-Othman, Abdulaziz Mohammad. "Iron intake and iron deficiency in young children". Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/26072.

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These studies have sought to assess iron intake in young children (9-36 months), to identify nutritional and other factors that may affect iron intake and iron status. A 4-day weighted food inventory, a semi-quantitative food frequency and social questionnaire and anthropometric measurements were used. Haemoglobin (Hb), mean corpuscular volume (MCV), serum ferritin (SF), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC) and haematocrit (Hct) were estimated in blood. Studies in Saudi Arabia: 104 healthy children randomly chosen from eight different health centres have been studied either longitudinally (n=55) or cross sectionally (n=49). Twenty four previously diagnosed iron deficient children from three hospitals were studied. Studies in Edinburgh: 62 healthy children aged 9 and 36 months old were studied. They were those whose parents agreed to participate from a larger number chosen randomly from children registered at three health centres in Edinburgh using the Lothian Health Board list. Prevalence of Anaemia in Children at The Royal Hospital for Sick Children (RHSC) and Diet: The prevalence of anaemia over a 2 months period in children whose blood samples were analysed in the Haematology Dept. was calculated. In 59 children whose parents completed a semi-quantitative food frequency and social questionnaire, of those, the iron intake and iron status was studied in detail, 41 with Hb below 11 g/dl, and 18 with normal Hb. Iron intakes less than both the Recommended Nutrient Intake (RNI) and the Lower Recommended Nutrient Intake (LRNI) have been shown to be common in children studied. Breakfast cereals and meat in addition to infant formula are important dietary factors which positively influence iron intake and iron status in this age group who are vulnerable to iron deficiency anaemia. These foods should be strongly recommended to parents for inclusion in the post-weaning diet of children of this age. A food frequency questionnaire can be used to identify children at risk.

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Bergquist, Bridget A. 1973. "The marine geochemistry of iron and iron isotopes". Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/53550.

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Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and, the Woods Hole Oceanographic Institution), 2004.
Includes bibliographical references.
This thesis addressed questions about the Fe cycle by measuring detailed profiles and transects of Fe species in the ocean and also by exploring the use of a new tracer of Fe, Fe isotopic fractionation. In the subtropical and tropical Atlantic Ocean, transects and profiles are presented for dissolved Fe ([less than]0.4 m), soluble Fe ([less than]0.02 gm), and colloidal Fe (0.02 to 0.4 Im). Surface dissolved Fe distributions reflect atmospheric deposition trends with colloidal Fe following dust deposition more strongly than the soluble fraction of Fe. Observed surface maxima and shallow minima in dissolved Fe were always due to variations in the colloidal Fe fraction. Deep-water dissolved and colloidal Fe concentrations vary with water mass source, age, and transport path. Elevated dissolved Fe concentrations ([greather than]1 nmol/kg) were associated with an oxygen minimum zone in the tropical Atlantic at 100N, 45 degrees W. Fractionation of iron isotopes could be an effective tool to investigate the geochemistry of iron. Trace metal clean plankton tows, river samples, aerosol leachates, and porewater samples were measured for their iron isotopic composition using a GV Instruments IsoProbe Multi-collector ICPMS. The Fe isotopic composition of plankton tow samples varied by over 4%o (in 56Fe/54Fe). North Pacific plankton tow samples had isotopically lighter Fe isotopic compositions than samples from the Atlantic. The overall isotopic range observed in the Amazon River system was 1.5%o, with variability observed for different types of tributaries.
(cont.) The main channel river dissolved Fe samples and suspended loads were isotopically similar ( -0.2 to -0.45%o relative to igneous rocks). The isotopically heaviest sample collected was dissolved Fe from an organic rich tributary, the Negro River (+0.16%o). In contrast, the suspended load from the Negro River was isotopically light (-1%o). The isotopically lightest sample from the Amazon region was shelf porewater (-1.4%o). In river water-seawater mixing experiments, the Fe isotopic signal of dissolved Fe of river water was modified by flocculation of isotopically heavy Fe. The observed range in the Fe isotopic composition of the natural samples including biological and aqueous samples demonstrates that significant and useful fractionation is associated with Fe biogeochemistry in the environment ...
by Bridget A. Bergquist.
Ph.D.

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Long, Christopher Allen. "Kinetics and morphological study of interdiffusion in iron-carbon/iron-vanadium or iron-molybdenum couples /". The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu148759680782343.

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Libri sul tema "Iron"

Devereux, Richard. IREN / IRON. UK: Richard Devereux, 2003.

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Hardig, Warren. Iron sharpens iron. Greenwood, Ind: OMS International, 1990.

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Cook, William Everett. Iron man, iron horse. Bath, England: Chivers Press, 2000.

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Mawdsley, Alar. Iron men & iron horses. Pratt, Kan: First Marketing, 1995.

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Gillen, Kieron. Iron Man: Iron Metropolitan. New York: Marvel Worldwide, 2014.

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Sparrow, Giles. Iron. New York: Benchmark Books, 1999.

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Zabrisky, Zarina. Iron. Sherwood Park, Alta., Canada: Epic Rites Press, 2012.

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Kellner, Tana. Iron. Rosendale, New York]: Published by Women's Studio Workshop, 2008.

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Tocci, Salvatore. Iron. New York: Children's Press, 2005.

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M, Loehr Thomas, a cura di. Iron carriers and iron proteins. New York: VCH Publishers, 1989.

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Capitoli di libri sul tema "Iron"

Doyle, D. John. "Parenteral Iron Therapy (IRON)". In Computer Programs in Clinical and Laboratory Medicine, 134–37. New York, NY: Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3576-7_30.

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Veselý, Jozef. "Iron Rich Iron-Aluminides". In Springer Theses, 3–17. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48302-3_2.

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Gebran, Nicole. "Iron". In Textbook of Clinical Pediatrics, 2621–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-02202-9_277.

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Winter, Jerrold. "Iron". In True Nutrition, True Fitness, 225–40. Totowa, NJ: Humana Press, 1991. http://dx.doi.org/10.1007/978-1-4612-0479-4_18.

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Kurtz, Wolfgang, e Hans Vanecek. "Iron". In W Tungsten, 180–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-662-08690-2_25.

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Humayun, Munir. "Iron". In Encyclopedia of Earth Sciences Series, 1–7. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-39193-9_247-1.

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Humayun, Munir. "Iron". In Encyclopedia of Earth Sciences Series, 745–51. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_247.

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Grubić Kezele, Tanja. "Iron". In Trace Elements and Minerals in Health and Longevity, 1–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03742-0_1.

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Bryant, Sean M., e Jerrold B. Leikin. "Iron". In Critical Care Toxicology, 1–12. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-20790-2_26-1.

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Morris, Steve, e Jayme P. Coyle. "Iron". In Hamilton & Hardy's Industrial Toxicology, 127–30. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch19.

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Atti di convegni sul tema "Iron"

Ullah, Alim, Raymond Martin e Wolf-Dieter Kunst. "FROM IRON ORE TO IRON". In 44º Seminário de Redução de Minério de Ferro e Matérias-primas, 15º Simpósio Brasileiro de Minério de Ferro e 2º Simpósio Brasileiro de Aglomeração de Minério de Ferro. São Paulo: Editora Blucher, 2014. http://dx.doi.org/10.5151/2594-357x-25567.

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Fisch, Ben, Dhinakaran Vinayagamurthy, Dan Boneh e Sergey Gorbunov. "IRON". In CCS '17: 2017 ACM SIGSAC Conference on Computer and Communications Security. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3133956.3134106.

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Zeng, Q., I. Baker, J. A. Loudis, Y. F. Liao e P. J. Hoopes. "Synthesis and heating effect of iron/iron oxide composite and iron oxide nanoparticles". In Biomedical Optics (BiOS) 2007, a cura di Thomas P. Ryan. SPIE, 2007. http://dx.doi.org/10.1117/12.708182.

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DeMar, Peter J. "Nickel-Iron". In INTELEC 2011 - 2011 33rd International Telecommunications Energy Conference. IEEE, 2011. http://dx.doi.org/10.1109/intlec.2011.6099771.

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Casse, Michel. "Iron Story". In AIP Conference Proceedings Volume 170. AIP, 1988. http://dx.doi.org/10.1063/1.37256.

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McCrae, Kevin, Alex Rych e Nicole Anderson (Blackwood). "Iron Sail". In SA '22: SIGGRAPH Asia 2022 Computer Animation Festival. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3550339.3556635.

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Imai, Daiji, e Tomoyuki Harashima. "Iron bowl". In ACM SIGGRAPH 99 Electronic art and animation catalog. New York, New York, USA: ACM Press, 1999. http://dx.doi.org/10.1145/312379.312966.

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Xiang, Q., M. Schlesinger e J. Watson. "Red mud minimization by iron removal - Iron reduction". In The 8th International Mineral Processing Symposium. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.4324/9780203747117-25.

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Sagar, Poonam, Ritika Gupta e Nitin Kumar Singhal. "Synbiotic hydrogels encapsulating iron and probiotic provide iron bioavailability equivalent to commercially available iron supplements". In 2022 IEEE International Conference on Nanoelectronics, Nanophotonics, Nanomaterials, Nanobioscience & Nanotechnology (5NANO). IEEE, 2022. http://dx.doi.org/10.1109/5nano53044.2022.9828897.

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Neyhouse, Jeffrey R., Jose M. Aurrecoechea, J. Preston Montague e John D. Lilley. "Cast Iron-Nickel Alloy for Industrial Gas Turbine Engine Applications". In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68837.

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Austenitic ductile iron castings have traditionally been used for gas turbine exhaust components that require castability, good machinability, low thermal expansion, and high strength at elevated temperatures. The achievement of optimum properties in austenitic ductile irons hinges on the ability of the foundry to produce nodular graphite in the microstructure throughout the component. In large, complex components, consistently producing nodular graphite is challenging. A high-nickel steel alloy that is suitable for sand castings has been recently developed for industrial gas turbine engine applications. The alloy exhibits similar mechanical and physical properties to austenitic ductile irons, but with improved processability and ductility. This alloy is weldable and exhibits no secondary graphite phase. This paper presents the results of a characterization program conducted on a 35% nickel, high-alloy steel. The results are compared with an austenitic ductile iron of similar composition. Tensile and creep properties from ambient temperature to 760°C (1400°F) are included, along with fabrication experience gained during the manufacture of several sand cast components at Solar Turbines Incorporated. The alloy has been successfully adopted for gas turbine exhaust system components and other applications where austenitic ductile irons have traditionally been utilized. The low carbon content of austenitic steels permits improved weldabilty and processing characteristics over austenitic ductile irons. The enhancements provided by the alloy indicate that additional applications, as both austenitic ductile iron replacements and new components, will arise in the future.

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Rapporti di organizzazioni sul tema "Iron"

Gross, G. A. Stratiform iron. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/207954.

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Gross, G. A. Skarn iron. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/208022.

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Hersman, L. E., e G. Sposito. Microbial acquisition of iron from ferric iron bearing minerals. Office of Scientific and Technical Information (OSTI), dicembre 1998. http://dx.doi.org/10.2172/562540.

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Wright, I. G., B. A. Pint, P. F. Tortorelli e E. K. Ohriner. ODS iron aluminides. Office of Scientific and Technical Information (OSTI), giugno 1996. http://dx.doi.org/10.2172/450767.

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Gross, G. A. Enriched iron-formation. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/207962.

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Dahlberg, E. D., e P. I. Cohen. Epitaxial Iron Films. Fort Belvoir, VA: Defense Technical Information Center, febbraio 1992. http://dx.doi.org/10.21236/ada250402.

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Wright, I. G., C. G. McKamey e B. A. Pint. ODS iron aluminides. Office of Scientific and Technical Information (OSTI), giugno 1995. http://dx.doi.org/10.2172/115408.

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Wright, I. G., C. G. McKamey e B. A. Pint. ODS iron aluminides. Office of Scientific and Technical Information (OSTI), luglio 1995. http://dx.doi.org/10.2172/106569.

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Hunter, Fraser, e Martin Carruthers. Iron Age Scotland. Society for Antiquaries of Scotland, settembre 2012. http://dx.doi.org/10.9750/scarf.09.2012.193.

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The main recommendations of the panel report can be summarised under five key headings:  Building blocks: The ultimate aim should be to build rich, detailed and testable narratives situated within a European context, and addressing phenomena from the longue durée to the short-term over international to local scales. Chronological control is essential to this and effective dating strategies are required to enable generation-level analysis. The ‘serendipity factor’ of archaeological work must be enhanced by recognising and getting the most out of information-rich sites as they appear. o There is a pressing need to revisit the archives of excavated sites to extract more information from existing resources, notably through dating programmes targeted at regional sequences – the Western Isles Atlantic roundhouse sequence is an obvious target. o Many areas still lack anything beyond the baldest of settlement sequences, with little understanding of the relations between key site types. There is a need to get at least basic sequences from many more areas, either from sustained regional programmes or targeted sampling exercises. o Much of the methodologically innovative work and new insights have come from long-running research excavations. Such large-scale research projects are an important element in developing new approaches to the Iron Age.  Daily life and practice: There remains great potential to improve the understanding of people’s lives in the Iron Age through fresh approaches to, and integration of, existing and newly-excavated data. o House use. Rigorous analysis and innovative approaches, including experimental archaeology, should be employed to get the most out of the understanding of daily life through the strengths of the Scottish record, such as deposits within buildings, organic preservation and waterlogging. o Material culture. Artefact studies have the potential to be far more integral to understandings of Iron Age societies, both from the rich assemblages of the Atlantic area and less-rich lowland finds. Key areas of concern are basic studies of material groups (including the function of everyday items such as stone and bone tools, and the nature of craft processes – iron, copper alloy, bone/antler and shale offer particularly good evidence). Other key topics are: the role of ‘art’ and other forms of decoration and comparative approaches to assemblages to obtain synthetic views of the uses of material culture. o Field to feast. Subsistence practices are a core area of research essential to understanding past society, but different strands of evidence need to be more fully integrated, with a ‘field to feast’ approach, from production to consumption. The working of agricultural systems is poorly understood, from agricultural processes to cooking practices and cuisine: integrated work between different specialisms would assist greatly. There is a need for conceptual as well as practical perspectives – e.g. how were wild resources conceived? o Ritual practice. There has been valuable work in identifying depositional practices, such as deposition of animals or querns, which are thought to relate to house-based ritual practices, but there is great potential for further pattern-spotting, synthesis and interpretation. Iron Age Scotland: ScARF Panel Report v  Landscapes and regions:  Concepts of ‘region’ or ‘province’, and how they changed over time, need to be critically explored, because they are contentious, poorly defined and highly variable. What did Iron Age people see as their geographical horizons, and how did this change?  Attempts to understand the Iron Age landscape require improved, integrated survey methodologies, as existing approaches are inevitably partial.  Aspects of the landscape’s physical form and cover should be investigated more fully, in terms of vegetation (known only in outline over most of the country) and sea level change in key areas such as the firths of Moray and Forth.  Landscapes beyond settlement merit further work, e.g. the use of the landscape for deposition of objects or people, and what this tells us of contemporary perceptions and beliefs.  Concepts of inherited landscapes (how Iron Age communities saw and used this longlived land) and socal resilience to issues such as climate change should be explored more fully.  Reconstructing Iron Age societies. The changing structure of society over space and time in this period remains poorly understood. Researchers should interrogate the data for better and more explicitly-expressed understandings of social structures and relations between people.  The wider context: Researchers need to engage with the big questions of change on a European level (and beyond). Relationships with neighbouring areas (e.g. England, Ireland) and analogies from other areas (e.g. Scandinavia and the Low Countries) can help inform Scottish studies. Key big topics are: o The nature and effect of the introduction of iron. o The social processes lying behind evidence for movement and contact. o Parallels and differences in social processes and developments. o The changing nature of houses and households over this period, including the role of ‘substantial houses’, from crannogs to brochs, the development and role of complex architecture, and the shift away from roundhouses. o The chronology, nature and meaning of hillforts and other enclosed settlements. o Relationships with the Roman world

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Lammers, Peter. Iron acquisition by cyanobacteria: siderophore production and iron transport by Anabaena. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.407.

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