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All Library Books, journals and Electronic Records Telegrafenberg

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  • 1
    Electronic Resource
    Electronic Resource
    A neoclassical input-output-model based on “make”- and “use”-tables (1989)
    Springer
    Empirical economics 14 (1989), S. 1-19 
    Details
    ISSN: 1435-8921
    Keywords: Input-output-model ; “make”- and “use”-matrices ; disaggregated econometric model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract The author presents a neoclassical input-output-model for the Federal Republic of Germany, which is based on “make”- and “use”-tables instead of input-output-tables. The advantage of this approach is, that the model is able to discriminate volumes and prices for industries and commodities. The analytical frame-work gives economic hypotheses to explain the coefficients of “make”- and “use”-matrices. So a blended functional/institutional input-output-model can be constructed, which offers the opportunity to use different schemes for the disaggregation of final demand and primary inputs. The article describes the theoretical model and the numerical specification of an econometric model, which is based on it. At the end the results of an ex-post-projection with this econometric model are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01980533
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  • 2
    Electronic Resource
    Electronic Resource
    Simplifications to substrate preparation for the cultivation of dissociated nerve cells (1975)
    Springer
    Cellular and molecular life sciences 31 (1975), S. 251-253 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Nous avons simplifié la méthode de préparation du substrat «collagène» pour la culture de cellules nerveuses dissociées. On obtient une fixation et une différenciation rapide des cellules sur ce substrat. Les cultures conviennent pour des études morphologiques, biochimiques et électrophysiologiques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01990736
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  • 3
    Electronic Resource
    Electronic Resource
    Über eine frühe Beobachtung solarer Höhenstrahlung (1964)
    Springer
    Naturwissenschaften 51 (1964), S. 34-34 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00622575
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  • 4
    Electronic Resource
    Electronic Resource
    CO-laser side-band spectrometer: Sub-Doppler heterodyne frequency measurements around 5 µm (1995)
    Springer
    Applied physics 61 (1995), S. 169-173 
    Details
    ISSN: 1432-0649
    Keywords: 07.65.Gj ; 33.20.Ea ; 42.72.Ai
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report the realization of a tunable sub-Doppler heterodyne spectrometer with high absolute accuracy, employing side-band generation with a CO laser. The fixed-frequency CO-gas laser, working from 4.7 to 8.4µm, is made partially tunable by the use of microwave side-band generation in a CdTe Electro-Optical Modulator (EOM). This leads to tunable radiation of high spectral purity. We describe the design of the microwave EOM, adapted to the CO laser, its performance and its first application to highly accurate frequency measurements. The side-band radiation is used for sub-Doppler stabilization of the CO laser, while the carrier frequency is mixed with the frequencies of two CO2 reference lasers. As a first result, we present measurements of OCS transitions in the 4.9µm (61 THz) region, reaching an absolute accuracy of 30 kHz (Δν/ν = 5×1O−10). Further application of our spectrometer to calibration gases will establish a variety of InfraRed (IR) calibration standards with a new quality of accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01090939
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  • 5
    Electronic Resource
    Electronic Resource
    Ergosterol and microbial biomass relationship in soil (1996)
    Springer
    Biology and fertility of soils 22 (1996), S. 299-304 
    Details
    ISSN: 1432-0789
    Keywords: Microbial biomass ; Fungal biomass ; Ergosterol ; Fumigation extraction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Ergosterol and microbial biomass C were measured in 26 arable, 16 grassland and 30 forest soils. The ergosterol content ranged from 0.75 to 12.94 μg g-1 soil. The geometric mean ergosterol content of grassland and forest soils was around 5.5 μg g-1, that of the arable soils 2.14 μg g-1. The ergosterol was significantly correlated with biomass C in the entire group of soils, but not in the subgroups of grassland and forest soils. The geometric mean of the ergosterol: microbial biomass C ratio was 6.0 mg g-1, increasing in the order grassland (5.1), arable land (5.4) and woodland (7.2). The ergosterol:microbial biomass C ratio had a strong negative relationship with the decreasing cation exchange capacity and soil pH, indicating that the fungal part of the total microbial biomass in soils increased when the buffer capacity decreased. The average ergosterol concentration calculated from literature data was 5.1 mg g-1 fungal dry weight. Assuming that fungi contain 46% C, the conversion factor from micrograms ergosterol to micrograms fungal biomass C is 90. For soil samples, neither saponification of the extract nor the more effective direct saponification during extraction seems to be really necessary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00334573
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  • 6
    Electronic Resource
    Electronic Resource
    Ergosterol and microbial biomass relationship in soil (1996)
    Springer
    Biology and fertility of soils 22 (1996), S. 299-304 
    Details
    ISSN: 1432-0789
    Keywords: Key words Microbial biomass ; Fungal biomass ; Ergosterol ; Fumigation extraction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Ergosterol and microbial biomass C were measured in 26 arable, 16 grassland and 30 forest soils. The ergosterol content ranged from 0.75 to 12.94 μg g–1 soil. The geometric mean ergosterol content of grassland and forest soils was around 5.5 μg g–1, that of the arable soils 2.14 μg g–1. The ergosterol was significantly correlated with biomass C in the entire group of soils, but not in the subgroups of grassland and forest soils. The geometric mean of the ergosterol:microbial biomass C ratio was 6.0 mg g–1, increasing in the order grassland (5.1), arable land (5.4) and woodland (7.2). The ergosterol:microbial biomass C ratio had a strong negative relationship with the decreasing cation exchange capacity and soil pH, indicating that the fungal part of the total microbial biomass in soils increased when the buffer capacity decreased. The average ergosterol concentration calculated from literature data was 5.1 mg g–1 fungal dry weight. Assuming that fungi contain 46% C, the conversion factor from micrograms ergosterol to micrograms fungal biomass C is 90. For soil samples, neither saponification of the extract nor the more effective direct saponification during extraction seems to be really necessary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00334573
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  • 7
    Electronic Resource
    Electronic Resource
    Boekbespreking (1954)
    Springer
    De economist 102 (1954), S. 122-145 
    Details
    ISSN: 1572-9982
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02206046
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  • 8
    Electronic Resource
    Electronic Resource
    Anion and cation vacancies in CdTe (1995)
    Springer
    Applied physics 61 (1995), S. 213-215 
    Details
    ISSN: 1432-0630
    Keywords: 76.70.Dx ; 71.55.Gs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The cadmium vacancy (VCd) and the tellurium vacancy (VTe) in CdTe are identified by Electron Paramagnetic Resonance (EPR). The EPR spectrum of the singly ionised VTe reveals cubic (unpertubed) symmetry and the hyperfine structure shows that the unpaired electron is equally spread over the four Cd neighbors. Further figand hyperfine interactions with the more distant neighbors are resolved by Electron Nuclear Double Resonance (ENDOR). The VCd is a double acceptor and the EPR spectrum is observed in its singly negative charge state. The symmerty is found to be trigonal, which can be explained in a model in which the hole occupies a dangling bondt 2 orbital and the orbital degeneracy is removed by a static Jahn-Teller distortion. The hyperfine interaction shows that the hole is localised on one of the four Te neighbors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538392
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  • 9
    Electronic Resource
    Electronic Resource
    Anion and cation vacancies in CdTe (1995)
    Springer
    Applied physics 61 (1995), S. 213-215 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 76.70.Dx; 71.55.Gs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  The cadmium vacancy (VCd) and the tellurium vacancy (VTe) in CdTe are identified by Electron Paramagnetic Resonance (EPR). The EPR spectrum of the singly ionised VTe reveals cubic (unpertubed) symmetry and the hyperfine structure shows that the unpaired electron is equally spread over the four Cd neighbors. Further ligand hyperfine interactions with the more distant neighbors are resolved by Electron Nuclear Double Resonance (ENDOR). The VCd is a double acceptor and the EPR spectrum is observed in its singly negative charge state. The symmerty is found to be trigonal, which can be explained in a model in which the hole occupies a dangling bond t 2 orbital and the orbital degeneracy is removed by a static Jahn–Teller distortion. The hyperfine interaction shows that the hole is localised on one of the four Te neighbors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050193
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of conditioned media on nerve cell differentiation (1980)
    Springer
    Cellular and molecular life sciences 36 (1980), S. 660-662 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Glial conditioned medium strongly stimulates the morphological maturation of cultured neuronal cells, while fibroblast and meningeal conditioned media have weaker effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01970123
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