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  • 11
    Digitale Medien
    Digitale Medien
    Conidiogenesis in Petriellidium boydii (Pseudallescheria boydii) (1982)
    Springer
    Mycopathologia 78 (1982), S. 145-150 
    Details
    ISSN: 1573-0832
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Slide cultures of the type strain of P. boydii Shear, showed percurrent production of conidia by light microscopy over a period of several hours. Scanning and transmission electron microscopy were used to examine the conidiogenesis. The conidiogenous cells developed annular ridges rather than typical annellophoric scars. Evidence that these ridges represented sequential spore production was shown by T.E.M. in the form of a discontinuity of the outer conidiophore wall at the widest point of each ridge.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00466068
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  • 12
    Digitale Medien
    Digitale Medien
    A first estimate of organic carbon storage in Holocene lake sediments in Alberta, Canada (2000)
    Springer
    Journal of paleolimnology 24 (2000), S. 395-400 
    Details
    ISSN: 1573-0417
    Schlagwort(e): carbon storage ; lake sediment ; Holocene ; Canada ; climate change ; organic matter
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Geologie und Paläontologie
    Notizen: Abstract This paper reports a first estimate of the Holocene lake sediment carbon pool in Alberta, Canada. The organic matter content of lake sediment does not appear to depend strongly on lake size or other limnological parameters, allowing a simple first estimate in which we assume all Alberta lake sediment to have the same organic matter content. Alberta lake sediments sequester about 15 g C m-2 yr-1, for a provincial total of 0.23 Tg C yr-1, or 2.3 Pg C over the Holocene. Alberta lakes may represent as much as 1/1700 of total global, annual permanent carbon sequestration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1008103605817
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  • 13
    Digitale Medien
    Digitale Medien
    Microbial Biomass and Community Structure in a Sequence of Soils with Increasing Fertility and Changing Land Use (2000)
    Springer
    Microbial ecology 40 (2000), S. 223-237 
    Details
    ISSN: 1432-184X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The microbial biomass and community structure of eight Chinese red soils with different fertility and land use history was investigated. Two community based microbiological measurements, namely, community level physiological profiling (CLPP) using Biolog sole C source utilization tests and phospholipid fatty acid (PLFA) profiles, were used to investigate the microbial ecology of these soils and to determine how land use alters microbial community structure. Microbial biomass-C and total PLFAs were closely correlated to organic carbon and total nitrogen, indicating that these soil microbial measures are potentially good indices of soil fertility in these highly weathered soils. Metabolic quotients and C source utilization were not correlated with organic carbon or microbial biomass. Multivariate analysis of sole carbon source utilization patterns and PLFAs demonstrated that land use history and plant cover type had a significant impact on microbial community structure. PLFAs showed these differences more than CLPP methods. Consequently, PLFA analysis was a better method for assessing broad-spectrum community differences and at the same time attempting to correlate changes with soil fertility. Soils from tea orchards were particularly distinctive in their CLPP. A modified CLPP method, using absorbance readings at 405 nm and different culture media at pH values of 4.7 and 7.0, showed that the discrimination obtained can be influenced by the culture conditions. This method was used to show that the distinctive microbial community structure in tea orchard soils was not, however, due to differences in pH alone.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002480000053
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  • 14
    Digitale Medien
    Digitale Medien
    Psychiatry and the medical student (1930)
    Springer
    Psychiatric quarterly 4 (1930), S. 118-126 
    Details
    ISSN: 1573-6709
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01563202
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  • 15
    Digitale Medien
    Digitale Medien
    The validity of the Roy approximation for citation analysis (1982)
    Springer
    Scientometrics 4 (1982), S. 411-416 
    Details
    ISSN: 1588-2861
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Buch- und Bibliothekswesen, Informationswissenschaft , Wissenschaftskunde und Wissenschaftsorganisation, Hochschul- und Universitätswesen, Museumswissenschaft
    Notizen: Abstract The validity of the Roy approximation for citation counting is critically evaluated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02021137
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  • 16
    Digitale Medien
    Digitale Medien
    Breeding for anthocyanin colors in Rosa (1983)
    Springer
    Euphytica 32 (1983), S. 205-216 
    Details
    ISSN: 1573-5060
    Schlagwort(e): Rosa ; rose genetics ; flower pigments ; paper chromatography ; anthocyanin ; cyanin ; peonin ; pelargonin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary In breeding for color and winter hardiness in Rosa, more than 1200 progeny from 47 families were analyzed for anthocyanin pigments. Cyanin, peonin and pelargonin were found in 99%, 52% and 31% respectively, of the seedlings. Each pigment was highly heritable from seed or pollen parents or both. All showed quantitative inheritance, particularly cyanin and peonin. A system is proposed to explain most of the synthetic pathways and controls for anthocyanin production in roses.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00036881
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  • 17
    Digitale Medien
    Digitale Medien
    Book reviews (1980)
    Springer
    Interchange 11 (1980), S. 72-82 
    Details
    ISSN: 1573-1790
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Pädagogik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01810434
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  • 18
    Digitale Medien
    Digitale Medien
    Spin-dependent correlations in normal liquid 3He (1981)
    Springer
    Journal of low temperature physics 44 (1981), S. 149-161 
    Details
    ISSN: 1573-7357
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Using a generalized Fermi hypernetted chain method on a Jastrow trial ground-state wave function, which includes a dependence on the z component of the nuclear spin, it is shown that spin correlations make a significant contribution to the ground-state energy of liquid 3He, accounting for much of the energy necessary to stabilize unpolarized liquid 3He relative to completely polarized 3He.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00115080
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  • 19
    Digitale Medien
    Digitale Medien
    Test of interparticle potentials for liquid 4He (1981)
    Springer
    Journal of low temperature physics 44 (1981), S. 367-396 
    Details
    ISSN: 1573-7357
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Euler-Lagrange calculations of the ground state properties of liquid 4He at several densities and for six different two-body potentials are compared to one another and to experiment. The trial ground state wave functions used are the Jastrow function and the triplet Feenberg function. Four recent potentials produce very good agreement with recent neutron and X-ray liquid structure function measurements. The experimental energy per particle lies about 0.3 K below two of the theoretical curves and 0.3 K above a third, all obtained using the triplet Feenberg function, though no fundamental three-body potentials are included.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00120783
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