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  • American Geophysical Union  (17)
  • American Meteorological Society  (12)
  • Wiley-Blackwell  (9)
  • Paleontological Society  (5)
  • American Meteorological Society (AMS)
  • Blackwell Publishing Ltd
  • Copernicus
  • 2005-2009  (14)
  • 2000-2004  (23)
  • 1975-1979  (4)
  • 1965-1969  (6)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    USE OF GEOPHYSICAL MEASUREMENTS IN LUNAR SURFACE ANALYSIS (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 123 (1965), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1965.tb20425.x
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  • 2
    Electronic Resource
    Electronic Resource
    Chlorobenzene biodegradation under consecutive aerobic–anaerobic conditions (2004)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology ecology 49 (2004), S. 0 
    Details
    ISSN: 1574-6941
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The biodegradation of monochlorobenzene, the main contaminant in a quaternary aquifer at Bitterfeld, Central Germany, was studied in microcosm experiments employing either original groundwater or defined mineral media together with the indigenous microbial community from the polluted site. The impact of consecutive aerobic–anaerobic–aerobic incubations on monochlorobenzene biodegradation, microbial diversity, and pH development was examined. The related changes in microbial community composition were analyzed by 16S rRNA gene-based single-strand conformation polymorphism (SSCP) fingerprints and sequencing of dominant bands and by quantitative analysis of bacterial respiratory chain quinones as biomarkers. Under aerobic conditions, the indigenous microbial community of the groundwater degraded monochlorobenzene mainly via the modified ortho-pathway. Respiratory chain quinones and SSCP analysis suggested dominance of the genera Acidovorax and Pseudomonas. A shift to anoxic conditions resulted in monochlorobenzene biotransformation but no dechlorination. The ability to degrade monochlorobenzene aerobically remained preserved throughout a fortnightly anoxic period at sufficiently high buffer capacity. Acidification, caused by monochlorobenzene biodegradation, was alkalinity-controlled. At low initial alkalinity a substantial decrease in pH, monochlorobenzene degradation, and total counts of live cells, accompanied by a change of the microbial community composition, was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/j.femsec.2003.08.014
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der o-Chinone, XXV: Darstellung und Eigenschaften von o-Chinonen mit elektrophilen Substituenten (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 1233-1245 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Elektrophile Substituenten mit Carbonylgruppen erhöhen struktur- und stellungsabhängig das Redoxpotential von o-Benzochinonen so stark, daß sie aus entsprechend substituierten Brenzcatechinen mit Tetrachlor-o-chinon präparativ nicht mehr zugänglich sind (Tab. 1). Führt man in diese Verbindungen Methoxylgruppen ein, so werden die Redoxpotentiale so weit gesenkt, daß aus den Brenzcatechinen mit Tetrachlor-o-chinon die zugehörigen o-Chinone entstehen.  -  Im Blick auf das Lignin- und Melaninproblem wurden o-Chinone der Kaffeesäure und substituierter Kaffeesäuren untersucht (Tab. 3) und 4.5-Dihydroxy-1-methoxycarbonyl-inden (XX) dargestellt.  -  Ist die Carbonylgruppe oder C=C-Doppelbindung Bestandteil eines planar angegliederten Ringes (vgl. I und II bzw. XX), so liegt das Redoxpotential unter demjenigen des o-Benzochinons; die Art dieser elektronischen Wechselwirkungen ist noch unbekannt.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980433
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  • 4
    Electronic Resource
    Electronic Resource
    Die polarographische Bestimmung der Redoxpotentiale von Brenzcatechin-Derivaten (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 2009-2015 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es werden Angaben zur Arbeitsweise und Meßgenauigkeit gemacht. Die ermittelten Halbstufenpotentiale werden auf Standardbedingungen bezogen und entsprechen den Redoxstandardpotentialen mit guter Näherung. Die Konzentration der Brenzcatechinderivate und das Lösungsmittel beeinflussen die Halbstufenpotentiale.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980640
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Kenntnis der o-Chinone, XXVII: Redoxpotentiale von Brenzcatechin-Derivaten (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 2016-2045 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die polarographisch ermittelten Standard-Redoxpotentiale von 121 Brenzcatechin-Derivaten, darunter 28 substituierten-1′.2′-Dihydroxy-6.7-benzo-tropolonen, werden mitgeteilt. Dem Substituenteneinfluß auf das Redoxpotential entsprechen Inkremente, die sich bei mehrfacher Substitution annähernd additiv verhalten. Die Redoxpotentiale werden diskutiert.
    Additional Material: 12 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980641
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  • 6
    Electronic Resource
    Electronic Resource
    Über die Chemie substituierter Benzochinone, II. Ent- und Umacetylierung von Polymethoxy-acetophenonen unter Bedingungen der Friedel-Crafts-Reaktion (Polyphosphorsäure) (1967)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 100 (1967), S. 930-936 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polymethoxy-acetophenone werden in Polyphosphorsäure ent- bzw. umacetyliert; die Entacetylierung folgt der 1. Ordnung. Aus 1.2.4.5-Tetramethoxy-benzol (1a) entsteht mit Eisessig/Polyphosphorsäure 2.4.5-Trimethoxy-acetophenon (2a).
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19671000330
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  • 7
    Electronic Resource
    Electronic Resource
    An automatic apparatus for continuous suspension culture with a concentrating device (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 18 (1976), S. 1497-1506 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A chemostat in which mammalian cells can be raised in continuous suspension culture is described. It is constructed from commercially available parts. This apparatus has the advantage over earlier models in that the medium can be pumped off free of cells, thus suddenly increasing the cell concentration in the culture. The apparatus has been successfully used in studies on contact inhibition.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260181102
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  • 8
    Electronic Resource
    Electronic Resource
    Polyol Peptidomimetics (2000)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 2000 (2000), S. 1113-1120 
    Details
    ISSN: 1434-193X
    Keywords: Peptidomimetics ; Reverse turn mimetics ; Glycomimetics ; Heterocycles ; Lactams ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: -D-Glucurono-3,6-lactone and L-cysteine combine in a highly stereoselective manner to give the 7,5-bicyclic thiazolidinlactam 2. The α-hydroxy group of the D-glucurono-3,6-lactone was exchanged for an amino function (to give 13) and, after condensation with L-cysteine methyl ester, the polyol dipeptide 7 was obtained. Peptide couplings proceed without the need to protect the three secondary hydroxy groups of the seven-membered ring. The amino group of 7 was deprotected and selectively elongated to the pseudo-tripeptide 16. The depsipeptide 17 was obtained by condensation of Boc-Ala-OH with the polyol 2. Elongation at the carboxy terminus yielded 19 and 20. The bicyclic scaffold populates a well-defined solution conformation; the hydroxy groups mimic the side chains of hydrophilic amino acids and can be further functionalized.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Reaktionen mit tert.-Butoxyradikalen. IV. Die Darstellung von 1,2-Glykolen aus primären und sekundären Alkoholen (1965)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 30 (1965), S. 256-261 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der thermischen oder photolytischen Zersetzung von Di-tert.-butylperoxid in Methanol, Äthanol, n-Propanol, Isopropanol und Benzylalkohol werden Äthylenglykol, 2,3-Butylenglykol, 3,4-Hexylenglykol, Pinakol und Hydrobenzoin mit Ausbeuten von 15 bis 70% gebildet. Bei der thermischen Zersetzung von Di-tert.-butylperoxid in einem Methanol-Äthanol-Gemisch bzw. Methanol-Äthylenglykol-Gemisch entstehen 1,2-Propylenglykol neben Äthylenglykol und 2,3-Butylenglykol bzw. Glycerin neben Äthylenglykol und Erythrit.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19650300504
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  • 10
    Electronic Resource
    Electronic Resource
    Über Oberflächenverbindungen von Übergangsmetallen. XIV. Koordinative ungesättigte Oberflächenverbindungen von Vanadium(III) auf SilicagelProfessor Walter Hieber zum 80. Geburtstage in Dankbarkeit gewidmet (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 426 (1976), S. 141-149 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Surface Compounds of Transition Metals. XIV. Coordinatively Unsaturated Surface Compounds of Vanadium(III) on SilicagelVanadium(V) reacts with silicagel (aqueous impregnation, activation in O2 at 800°C) to a colourless highly dispersed surface compound, which can be reduced by CO to coordinatively unsaturated violet surface vanadium(III). Reoxydation with O2 forms a deep-blue surface peroxide under chemiluminescence; heat treatment at 300°C reconstitutes the original vanadium(V) surface compound with simultaneous loss of 1/2 O2.
    Notes: Vanadium(V) bildet bei wäßriger Dotierung und nachfolgender Aktivierung (O2, 800°C) auf Silicagel farblose, hochdisperse Oberflächenverbindungen, die sich mit CO zu koordinativ ungesättigtem, violettem Oberflächen-Vanadium(III) reduzieren lassen. Reoxydation mit O2 führt unter Chemilumineszenz zunächst zu einem tiefblauen Oberflächen-Peroxid , das beim Erwärmen auf 300°C unter Abgabe von 1/2 O2 vollständig in das ursprüngliche Vanadium(V) übergeht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764260202
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