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  • 1
    Electronic Resource
    Electronic Resource
    Anaemia of renal failure: Differences between continuous ambulatory peritoneal dialysis and haemodialysis (2000)
    Melbourne, Australia : Blackwell Science Pty
    Nephrology 5 (2000), S. 0 
    Details
    ISSN: 1440-1797
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A cross-sectional study was performed to assess a series of parameters, especially those related to iron status, that may account for differences in the anaemia of patients treated with continuous ambulatory peritoneal dialysis (CAPD) and haemodialysis (HD). Patients on CAPD (n = 37) and on haemodialysis (n = 27) were selected on the basis of clinical stability and absence of factors that may interfere with iron metabolism. Parameters measured included routine haematological and biochemical profile; serum iron metabolism (serum iron, transferrin saturation capacity, transferrin saturation index, serum ferritin); erythrocyte ferritin; bone marrow erythroid components and semiqualitative analysis of iron deposits in the bone marrow. The CAPD patients showed higher levels of haemoglobin and transferrin saturation capacity as well as lower serum ferritin than patients on haemodialysis. In the bone marrow, CAPD patients had a higher percentage of red blood cells and in those with low iron-containing macrophages a higher percentage of sideroblasts than the haemodialysis group. Erythrocyte ferritin levels were similar in both groups. These data suggest more efficient iron metabolism in CAPD patients than in patients on haemodialysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-1797.2000.00506.x
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  • 2
    Electronic Resource
    Electronic Resource
    Non-Isothermal Devitrification Study of Wollastonite-Tricalcium Phosphate Bioeutectic〈sup〉®〈/sup〉 Glass (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 396-398 (Oct. 2008), p. 127-130 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This document describes and discusses the non-isothermal devitrification process of thewollastonite-tricalcium phosphate (W-TCP) eutectic glass. This eutectic glass has been studied insitu, from room temperature up to 1375 ºC, by Neutron Diffractometry (ND) in vacuum. The dataobtained were complemented and compared with those performed on ambient atmosphere byDifferential Thermal Analysis (DTA) and with those of samples fired in air, at selectedtemperatures, and then cooled down and subsequently studied by laboratory X-ray PowderDiffraction (LXRD) and Field Emission Scanning Electron Microscopy (FE-SEM) fitted withEnergy X-Ray Dispersive Spectroscopy (EDS). Selected samples have been investigated byquantitative full-phase analysis (including the amorphous content) using the Rietveld method. Theexperimental evidence indicates that the devitrification of W-TCP eutectic glass, begins at ~870ºC,with the crystallization of a Ca-deficient apatite phase (Ca9.92(P5.85O23.54)(OH)2.03 (H2O)2.194)followed by wollastonite-2M (-CaSiO3) crystallization at 1006ºC. At 1375ºC the bio glassceramicis comprised of quasi-rounded colonies formed by a homogeneous mixture ofpseudowollastonite (-CaSiO3) and -tricalcium phosphate (-Ca3(PO4)2). This microstructurecorresponds to irregular eutectic structures and is similar to that of Bioeutectic® W-TCP materialobtained previously, via controlled slow solidification of the eutectic composition, by some of thepresent authors. It has also been found that from the eutectic composition of the wollastonite –tricalcium phosphate binary system is possible to obtain a wide range of bio glass-ceramics throughappropriate design of thermal treatments
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.396-398.127.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Relative contribution of surface and edge to ion absorption by leaf discs (1971)
    Springer
    Plant and soil 34 (1971), S. 509-513 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Phosphorus (H3P32O4) absorption was studied in detached bean leaves and leaf discs and later computed per unit surface area and per unit edge length vis-a-vis discs of 4–18 mm diameters. Not only absorption through edge predominantly contributed to total disc absorption it was also directly proportional to disc diameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01372805
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