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  • Wiley-Blackwell  (2)
  • Blackwell Publishing Ltd  (1)
  • 2005-2009  (1)
  • 1975-1979  (2)
  • 1960-1964
  • 1870-1879
  • 1
    Electronic Resource
    Electronic Resource
    Effect of petrochemical sludge concentrations on microbial communities during soil bioremediation (2005)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology ecology 53 (2005), S. 0 
    Details
    ISSN: 1574-6941
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Qualitative and quantitative changes of microbial communities in soil microcosms during bioremediation were determined throughout one year. The soil was contaminated with 0%, 2.5%, 5%, 10% (wt/wt) of petrochemical sludge containing polynuclear aromatic hydrocarbons. We analyzed the hydrocarbon concentration in the microcosms, the number of cultivable bacteria using CFU and most probable number assays, the community structure using denaturing gradient gel electrophoresis, and the metabolic activity of soil using dehydrogenase activity and substrate-induced respiration assays. After one year of treatment, the chemical analysis suggested that the hydrocarbon elimination process was over. The biological analysis, however, showed that the contaminated microcosms suffered under long-term disturbance. The number of heterotrophic bacteria that increased after sludge addition (up to 108–109 cells ml−1) has not returned to the level of the control soil (2–6 × 107 cells ml−1). The community structure in the contaminated soils differed considerably from that in the control. The substrate-induced respiration of the contaminated soils was significantly lower (10-fold) and the dehydrogenase activity was significantly higher (20–40-fold) compared to the control. Changes in the community structure of soils depended on the amount of added sludge. The species, which were predominant in the sludge community, could not be detected in the contaminated soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/j.femsec.2005.01.014
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  • 2
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie des Schwefels. 115. Kristall- und MolekülStruktur von BenzopentathiepinProfessor Günther Rienäcker gewidmet (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 452 (1979), S. 37-42 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Sulfur. 115. Crystal and Molecular Structure of BenzopentathiepineThe structure of benzopentathiepine has been determined from three-dimensional single-crystal X-ray data. The crystal are monoclinic, space group P21/c, with 4 molecules in the unit cell of dimensions a = 6.942(4) Å, b = 10.223(10) Å, c = 13.015(8) Å, β = 102,15(10)°. The conformation of the seven-membered ring is the chair form. Details of the conformation are discussed. Bond distances, bond angles, and dihedral angles are compared with those in other molecules, which have similar structure.
    Notes: Die Struktur von Benzopentathiepin wurde aus Einkristalldaten röntgenographisch bestimmt. Die Kristalle sind monoklin, Raumgruppe P21/c, mit 4 Molekeln in der Elementarzelle. Die Gitterkonstanten sind: a = 6,942(4) Å, b = 10,223(10) Å, c = 13,015(8) Å, β = 102,15(10)°. Der siebengliedrige Ring liegt in der Sesselkonformation vor. Einzelheiten der Konformation werden diskutiert. Bindungslängen und -winkel sowie die Diederwinkel werden mit denen anderer Molekeln ähnlicher Struktur verglichen.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794520106
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der Hydrate des Bariumchlorids. Röntgenographische, thermoanalytische, Raman- und IR-spektroskopische Untersuchungen (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 457 (1979), S. 84-90 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Hydrates of Barium Chloride. X-ray, Thermoanalytical, Raman, and I.R. DataIn the system BaCl2—H2O the hydrates BaCl2 · 2 H2O, BaCl2 · 1 H2O, BaCl2 · 1/2 H2O, and BaCl2 · uH2O were obtained. X-ray powder data, i.r. and Raman spectra, as well as thermoanalytical measurements (TG, DTA) are reported. BaCl2 · 1 H2O and BaCl2 · 1/2 H2O, which are both isotype with the corresponding hydrates of SrCl2, were prepared by dehydration of BaCl2 · 2 H2O or by back hydration of anhydrous BaCl2 with the calculated amounts of water. BaCl2 · uH2O (u ≍ 1) is formed as the primary product by the reaction of anhydrous BaCl2 with water vapour at room temperature. Preparation methods of salt hydrates by controlled back hydration of the anhydrous salts are reported.
    Notes: Im System BaCl2—H2O wurden folgende Hydrate erhalten: BaCl2 · 2 H2O, BaCl2 · 1 H2O, BaCl2 · 1/2 H2O und BaCl2 · uH2O. Röntgenpulverdaten, IR- und Raman-Spektren sowie das Ergebnis thermoanalytischer Messungen (TG, DTA) werden mitgeteilt. BaCl2 · 1 H2O und BaCl2 · 1/2 H2O, die mit den entsprechenden Hydraten des SrCl2 isotyp sind, werden beim Entwässern von BaCl2 · 2 H2O oder durch Umsetzen von wasserfreiem BaCl2 mit der berechneten Menge Wasser erhalten. BaCl2 · uH2O (u ≍ 1) bildet sich als primäres Reaktionsprodukt bei der Umsetzung von wasserfreiem BaCl2 mit Wasserdampf bei Raumtemperatur. Die Darstellung phasenreiner niederer Salzhydrate durch kontrollierte Rückbewässerung der wasserfreien Salze wird beschrieben.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794570109
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