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  • 1
    Electronic Resource
    Electronic Resource
    Terminally Attached Polystyrene Chains on Modified Silicas (1994)
    s.l. : American Chemical Society
    Langmuir 10 (1994), S. 3500-3506 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00022a024
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Multimode Light Microscopy and the Dynamics of Molecules, Cells, and Tissues (1993)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 55 (1993), S. 785-817 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ph.55.030193.004033
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  • 3
    Electronic Resource
    Electronic Resource
    Anomalies in sculpins (Myoxocephalus spp.) sampled near a pulp and paper mill (1994)
    Springer
    Archives of environmental contamination and toxicology 26 (1994), S. 491-496 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract This study investigated anomalies in two species of benthic sculpins (Myoxocephalus octodecemspinosus and M. scorpius) inhabiting a marine inlet in Newfoundland, Canada, where effluent from a pulp and paper mill is discharged and from two reference sites. Condition factor of both species of sculpins from the polluted and a reference site was similar. Some differences in parasite fauna were observed. Tissues from reference fish, obtained from two uncontaminated sites for comparison, were normal. Impaired vision, fin and tail necrosis, hyperplasia of the gill epithelium, depletion of energy reserves in the liver, and multifocal hemosiderosis in the spleen were observed primarily in M. octodecemspinosus captured near the paper mill. These stress-associated lesions, probably caused by undetermined xenobiotics, appear to be associated with the sediment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00214152
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Histopathology in winter flounder (Pleuronectes americanus) living adjacent to a pulp and paper mill (1994)
    Springer
    Archives of environmental contamination and toxicology 26 (1994), S. 95-102 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Winter flounder were captured by scuba divers from an area adjacent to a sulfite pulp and paper mill and from a reference site and the tissues examined for lesions. Severe hyperplasia of the gills, focal vacuolation in the liver, and multifocal hemosiderosis in the spleen and liver were most pronounced in large, adult fish collected near the mill. Lesions were less severe and prevalent in smaller fish. Vacuolation in the liver represents a preneoplastic lesion. The histopathological changes appear to be the result of chronic exposure. Few or no lesions were observed in the tissues of flounder taken from the reference site. Although the specific cause of these lesions is unknown, it is likely associated with cytotoxic compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212799
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Gonyauline: A novel endogenous substance shortening the period of the circadian clock of a unicellular alga (1991)
    Springer
    Cellular and molecular life sciences 47 (1991), S. 103-106 
    Details
    ISSN: 1420-9071
    Keywords: Circadian rhythm ; period length ; creatine ; S-methyl-cis-2-(methylthio) cyclopropanecarboxylic acid ; Gonyaulax polyedra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The circadian clock in the unicellular algaGonyaulax polyedra is accelerated by a substance in extracts from the cells themselves. The extracts have been fractionated using the circadian rhythm of bioluminescence as bioassay. The active substance, termed gonyauline, has been isolated and characterized as a novel low molecular weight cyclopropanecarboxylic acid (S-methyl-cis-2-(methylthio) cyclopropanecarboxylic acid). Synthetic gonyauline has a similar shortening effect on the period of the circadian clock.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041268
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A model for the etching of silicon in SF6/O2 plasmas (1990)
    Springer
    Plasma chemistry and plasma processing 10 (1990), S. 207-229 
    Details
    ISSN: 1572-8986
    Keywords: Plasma etching ; modeling ; SF6 ; O2 ; gas-phase reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract A model has been developed to describe the chemistry which occurs in SF6/O2 plasmas and the etching of silicon in these plasmas. Emphasis is placed nn the gas-phase free radical reactions, and the predictions n( the model are compared with experimental results. Forty-seven reactions are included, although a subset of 18 reactions describes the chemistry equally well. Agreement between the calculated and measured concentrations of stable products downstream of the plasma is better than a factor of 2. The need for additional kinetic data and fàr well-characterized diagnostic studies of SF6/O2 plasmas is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01447127
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    A critical comparison ofGracilaria chilensis andG. sordida (Rhodophyta, Gracilariales) (1990)
    Springer
    Journal of applied phycology 2 (1990), S. 375-382 
    Details
    ISSN: 1573-5176
    Keywords: Gracilaria ; taxonomy ; organellar DNA restriction ; anatomy ; chromosome number ; interfertility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Gracilaria chilensis Bird, McLachlanet Oliveira from Chile andG. sordida Nelson from New Zealand have been compared with respect to reproductive anatomy, chromosome number, interfertility, and organellar DNA restriction profiles. No differences were found in reproductive anatomy, which in these species is distinguished by deeptextorii-type spermatangial conceptacles and prominent tubular nutritive cells directed only to the floor of the cystocarp. The species share a chromosome number ofn = 24 and are readily interfertile. Electrophoretic profiles of organellar DNA digested with four different restriction endonucleases were virtually identical between the species except for bands that represented accompanying plasmids. However, previous research has indicated that the four plasmid bands inG. chilensis and the single one inG. sordida have a common origin. On these groundsG. chilensis andG. sordida are
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02180928
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    Paper (German National Licenses)
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