24 research outputs found

    Case studies on the geological application of LANDSAT imagery in Brazil

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    The author has identified the following significant results. Sao Domingos Range, Pocos de Caldas, and Araguaia and Tocantins Rivers in Brazil were selected as test sites for LANDSAT imagery. The satellite images were analyzed using conventional photointerpretation techniques, and the results indicate the application of small scale image data in regional structural data analysis, geological mapping, and mineral exploration

    Diethyl (1-hydr­oxy-1-phenyl­ethyl)phospho­nate

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    The title compound, C12H19O4P, has a distorted tetra­hedral geometry around the P atom. The molecules form dimers with R 2 2(10) ring motifs due to inter­molecular O—H⋯O hydrogen bonds. The double-bonded O atom of the phospho­nate group behaves as an acceptor and the hydr­oxy group acts as a donor. Both of the ethyl groups are disordered with occupancies of 0.55:0.45 and 0.725:0.275

    MULTIVARIATE MORPHOMETRIC ANALYSIS OF SELECTED PROISOTOMA SPECIES (COLLEMBOLA, ISOTOMIDAE)

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    Multivariate analyses were applied to seven species of the collembolan genus Proisotoma. Principal components analysis and canonical variates analysis resulted in different patterns of ordination. All species, except for P. tenella form a tight cluster in the principal components analysis, whereas three major clusters were produced by canonical variates analysis. The clusters displayed in the reduced space of canonical variates are concordant, in part, with groupings based on a different set of morphologic characters and may have systematic significance.227416719810

    Pathogenicity characteristics of uropathogenic Escherichia coli strains

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    Seventeen wild-type uropathogenic Escherichia coli strains isolated from patients with urinary tract infection (UTI) and one pyelonephritis strain were studied for pathogenicity traits. Their plasmid, outer membrane protein, surface protein and RAPD DNA profiles, hemolysin and colicin production, type of fimbriae expressed and capacity of adhesion to uroepithelial cells were determined in an attempt to correlate these characteristics with pathogenicity. The only characteristic that had a consistent pattern in these types of E. coli was adhesion to uroepithelial cells.19191
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