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  • 1
    Digitale Medien
    Digitale Medien
    Adenomyoepithelioma of the breast with undifferentiated carcinoma component (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 24 (1994), S. 0 
    Details
    ISSN: 1365-2559
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2559.1994.tb00522.x
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  • 2
    Digitale Medien
    Digitale Medien
    Comparison of liquid-liquid extraction and resin adsorption for concentrating mutagens in amesSalmonella/microsome assays on water (1981)
    Springer
    Bulletin of environmental contamination and toxicology 27 (1981), S. 442-449 
    Details
    ISSN: 1432-0800
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01611046
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  • 3
    Digitale Medien
    Digitale Medien
    Vergelijkend overzicht van de immigratie en blijvende vestiging van Javanen en Britsch-Indiërs in Suriname (1928)
    Springer
    De economist 77 (1928), S. 422-445 
    Details
    ISSN: 1572-9982
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Wirtschaftswissenschaften
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02203853
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  • 4
    Digitale Medien
    Digitale Medien
    Lead, mercury, and cadmium in feathers of tropical terns in Puerto Rico and Australia (1991)
    Springer
    Archives of environmental contamination and toxicology 21 (1991), S. 311-315 
    Details
    ISSN: 1432-0703
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Notizen: Abstract Levels of lead, cadmium, and mercury were examined in breast feathers of terns nesting on offshore islets near Culebra, Puerto Rico and on Michaelmas Cay and Heron Island on the Great Barrier Reef, Australia. Levels of all metals in these tropical terns were predicted to be lower than those of terns nesting in temperate regions, because the tropical species feed offshore of non-industrial areas where contamination should be less than for temperate-nesting species that feed in inshore estuaries near industrialized areas. This prediction was not supported by the evidence. In Puerto Rico, lead and cadmium levels were highest in bridled tern (Sterna anaethetus), and mercury levels were highest in sooty (S. fuscata) and roseate tern (S. dougallii). In Australia, levels of lead and mercury were higher in black noddy (A. minutus) and lower for sooty tern; and cadmium levels were highest for brown noddy (A. stolidus) and sooty tern, and lowest for black noddy. Metal levels for the tropical terns nesting in Puerto Rico and Australia generally were not lower than levels reported for temperate-nesting or mainland nesting birds (except for mercury in Australia).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01055351
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  • 5
    Digitale Medien
    Digitale Medien
    Heavy metal and selenium levels in feathers of known-aged common terns (Sterna hirundo) (1994)
    Springer
    Archives of environmental contamination and toxicology 26 (1994), S. 351-355 
    Details
    ISSN: 1432-0703
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Notizen: Abstract Concentrations of five metals and selenium in the breast feathers of known-aged common terns (Sterna hirundo) were examined at a breeding colony in Massachusetts, USA. Concentrations of selenium, chromium, and manganese increased significantly with age among adults (2–21 years old), whereas concentrations of mercury, cadmium, and lead did not. Concentrations of cadmium, selenium and manganese were lower in fledglings (20–23 days old) than in adults. Concentrations of mercury, however, were higher in fledglings than in adults, and concentrations of chromium were higher in fledglings than in young adults, probably reflecting higher exposure to these metals in the breeding area than in the winter quarters where the adults' feathers were grown. At least for mercury, excretion of metals into the feathers at each molt was an efficient protective mechanism, preventing continued accumulation in the body with increasing age.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00203562
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  • 6
    Digitale Medien
    Digitale Medien
    Heavy metals in the hair of opossum from Palo Verde, Costa Rica (1994)
    Springer
    Archives of environmental contamination and toxicology 27 (1994), S. 472-476 
    Details
    ISSN: 1432-0703
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Notizen: Abstract Levels of lead, cadmium, mercury, chromium, and manganese were measured in the hair of opossum (Didelphis virginiana) from Palo Verde, Guanacaste, Costa Rica. This area has some agriculture, but is slated for extensive water development that will increase ecosystem exposure to a variety of agricultural chemicals. Metal levels were generally not inter-correlated except for chromium and lead, chromium and cadmium, and cadmium and lead. There were significant gender differences only for lead and chromium, with the significantly smaller females having higher levels. It is suggested that hair from mammals, particularly abundant ominivores may be useful, bioindicators of environmental quality over a long time period.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00214838
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  • 7
    Digitale Medien
    Digitale Medien
    Observation of the early stages of growth and the formation of growth spirals in epitaxial YBa2Cu3O7-δ thin films by AFM (1994)
    Springer
    Applied physics 59 (1994), S. 49-56 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 68.55 ; 61.70 ; 74.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract Ultrathin epitaxial films of YBa2Cu3O7−δ on SrTiO3 prepared by Direct Current (DC) sputtering and pulsed laser deposition were imaged by Atomic Force Microscopy (AFM) to follow the different stages of growth of the thin films. Series of films with thicknesses between 1.2 nm and 12 nm (1–10 monolayers of YBa2Cu3O7−δ) were prepared under identical conditions, optimized with respect to electrical and structural properties, to obtain information on the mechanisms responsible for the formation of growth spirals which are commonly observed in films having a thickness of several 10 nm or more. It could be shown that few layers are formed by a layered growth mode where material is attached laterally to 2D islands which are only one c-axis unit cell in height. In a later stage of growth when about 8–10 layers have been formed, the growth process changes to a mode which is mediated by growth spirals. This could be directly monitored in the AFM images where different defect structures like vertically sheared growth fronts and dendrite-like terraces of stacked islands as well as the resulting growth spirals could be identified.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00348419
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  • 8
    Digitale Medien
    Digitale Medien
    Cloning, sequencing, and expression inEscherichia coli of the coat protein gene of a new potyvirus infecting South AfricanPassiflora (1993)
    Springer
    Archives of virology 128 (1993), S. 29-41 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Complementary DNA representing 1418 nucleotides (nt) of the 3′-poly(A)-proximal tract of the genomic RNA of a potyvirus causing woodiness disease in South African passionfruit, was cloned and sequenced. The sequence contained a single long open reading frame (ORF) of 1188 nt with no initiation codon, and a 3′-non-coding region (3′-NCR) of 230 nt followed by a poly-adenylate tract. Comparison of the ORF with other potyviral coat protein (CP) sequences led to the prediction that a 279 residue CP of MW 31722 is encoded by 836 nt at the 3′-terminus of the ORF. This virus is not merely a South African strain of passionfruit woodiness virus (PWV): the deduced CP sequence is only distantly related to CPs of other sequenced strains of PWV, although it is part of a distinct subgroup of potyviruses related to PWV. The virus was therefore designated as South African passiflora virus (SAPV). The DNA containing the putative CP was cloned into the pUEX 2 bacterial expression vector and expressed inEscherichia coli as a β-gal-CP fusion protein. The fusion protein reacted with polyclonal antisera raised against the native virus, and antisera raised against partially purified fusion protein reacted with viral CP in Western blots.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01309786
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  • 9
    Digitale Medien
    Digitale Medien
    Long-term plasma exchange in a case of Refsum's disease (1991)
    Springer
    European archives of psychiatry and clinical neuroscience 241 (1991), S. 82-84 
    Details
    ISSN: 1433-8491
    Schlagwort(e): Heredopathia Atactica Polyneuritiformis ; Refsum's disease ; Plasmapheresis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Refsum's disease (Heredopathia atactica polyneuritiformis) is caused by accumulation of phytanic acid in all body tissues due to an inherited failure of alphaoxidation of branched chain fatty acids. Plasmapheresis has been reported to be beneficial by removal of phytanic acid from the blood. We describe a patient with Refsum's disease in whom long-term plasmapheresis did not improve clinical, biochemical or electrophysiological parameters.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02191145
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  • 10
    Digitale Medien
    Digitale Medien
    Locational differences in metal concentrations in feathers of Australasian gannet (Morus serrator) in New Zealand (1994)
    Springer
    Environmental monitoring and assessment 32 (1994), S. 47-57 
    Details
    ISSN: 1573-2959
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Levels of lead, cadmium, mercury, selenium, manganese and chromium were examined in breast feathers of Australasian Gannets (Morus serrator) from New Zealand waters, where they breed on coastal rocky stacks, islands, and occasionally coastal headlands. There were significant differences in the concentrations of all metals except mercury, with gannets from Ninety Mile Beach having significantly lower levels of all metals than those from the other beaches. Ninety Mile Beach is on the northern tip of the North Island, away from urbanization and industrialization, whereas the other beaches are closer to Auckland, the largest city in New Zealand. The levels of most metals were similar or lower than those reported for feathers from elsewhere around the world. Mercury, however, was at the high end, being exceeded only by raptors and gulls from industrialized countries. Several metal levels were highly correlated, indicating that gannets were usually exposed to several metals at once.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00548151
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