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  • 1
    Electronic Resource
    Electronic Resource
    Thickness dependence of the critical solution temperature of hydrogen in Pd films (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 3125-3130 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The isotherms of very thin PdHx films (60 A(ring)〈d〈600 A(ring)) have been determined below room temperature by equilibrium potential measurements. One finds that the critical temperature Tc is lowered when the film thickness decreases: for the 60-A(ring) film Tc would be near 173 K. This marked drop of Tc is attributed to clamping effects of the sample on the substrate, which decreases the effective H–H interaction and favors short-range coherency effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337724
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  • 2
    Electronic Resource
    Electronic Resource
    Adenomyoepithelioma of the breast with undifferentiated carcinoma component (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 24 (1994), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1994.tb00522.x
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  • 3
    Electronic Resource
    Electronic Resource
    Nucleon-nucleon forces in a nonrelativistic quark model (1986)
    Springer
    Czechoslovak journal of physics 36 (1986), S. 321-324 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Conclusion We have considered allNN-partial waves simultaneously. The central part of the one gluon exchange is always repulsive, the tensor part can be neglected and the spin-orbit part is too weak for this choice of parameters. An additional colourless VMEP potential allows us to reproduce the experimental data. However, this potential cannot be related to a long range one-pion exchange potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01597168
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  • 4
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    Gender Differences in Smoking Behavior in a University Workplace (1989)
    New York, N.Y. : Periodicals Archive Online (PAO)
    Sex Roles. 20:9/10 (1989:May) 523 
    Details
    ISSN: 0360-0025
    Topics: Archaeology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:v531-1989-020-09-000004
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  • 5
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: 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).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01055351
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  • 6
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203562
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of lead on growth and feeding behavior of young common terns (Sterna hirundo) (1988)
    Springer
    Archives of environmental contamination and toxicology 17 (1988), S. 513-517 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Common tern,Sterna hirundo, chicks injected with lead (Pb) nitrate (IP) showed slower weight gain than controls, due to reduced assimilation efficiency, rather than reduced food intake. The ability to manipulate fish, involving complex motor coordination of head and neck, showed impairment, while the ability to locate and seize fish did not. The study demonstrates that Pb can selectively impair certain behavioral functions of feeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01055517
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  • 8
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00214838
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  • 9
    Electronic Resource
    Electronic Resource
    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
    Keywords: 68.55 ; 61.70 ; 74.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348419
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  • 10
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01309786
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