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Browsing 2009 by Author "Luxmi Varma, R"

Browsing 2009 by Author "Luxmi Varma, R"

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  • EDAX versus FTIR in mixed stones 
    Fazil Marickar, Y M; Lekshmi, P R; Luxmi Varma, R; Peter Koshy (Springer, 2009)
    Mixed stones form a significant number of all urinary stones. Accurate analysis of individual areas of stones is fraught with uncertainties. Scanning electron microscopy with elemental distribution analysis (SEM-EDAX) is ...
  • Elemental distribution analysis of urinary crystals 
    Fazil Marickar, Y M; Lekshmi, P R; Luxmi Varma, R; Peter Koshy (Springer, 2009)
    Various crystals are seen in human urine. Some of them, particularly calcium oxalate dihydrate, are seen normally. Pathological crystals indicate crystal formation initiating urinary stones. Unfortunately, many of the ...
  • A novel method for the upper rim alkoxy-substitution of calix[4]arene via a bis(spirodienone) route 
    Sreeja, T; Bhagavathy, G V; Jijy, E; Luxmi Varma, R (Elsevier, 2009)
    A mild and efficient one-step procedure for the upper rim modification of calix[4]arene via a bis(spirodienone) is described. The bis(spirodienone) on reaction with alcohols in the presence of p-TSA affords mono- and ...
  • Optical microscopy versus scanning electron microscopy in urolithiasis 
    Fazil Marickar, Y M; Lekshmi, P R; Luxmi Varma, R; Peter Koshy (Springer, 2009)
    Stone analysis is incompletely done in many clinical centers. Identification of the stone component is essential for deciding future prophylaxis. X-ray diffraction, Fourier transform infrared spectroscopy, and scanning ...
  • Problem in analyzing cystine stones using FTIR spectroscopy 
    Fazil Marickar, Y M; Lekshmi, P R; Luxmi Varma, R; Peter Koshy (Springer, 2009)
    Cystine stones are produced by an inherited disorder of the transport of amino acid cystine that results in excess of cystine in the urine (cystinuria). Cystine calculi in urinary tract present a significant problem in ...
  • Ultra structural study of laminated urinary stone 
    Fazil Marickar, Y M; Luxmi Varma, R; Peter Koshy (Springer, 2009)
    Several modalities of stone analysis are utilised in different laboratories. However, the treating clinician finds it hard to assess the initiation and progression of stone formation. The pathogenesis of calculogenesis ...

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