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  • 1
    Digitale Medien
    Digitale Medien
    THE HEAT OF WETTING OF LEAD SULFATE1 (1924)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 46 (1924), S. 1158-1167 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja01670a007
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  • 2
    Digitale Medien
    Digitale Medien
    Soret and mass diffusion coefficients of toluene/n-hexane mixtures (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 4367-4370 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: Soret coefficients and mass diffusion coefficients of mixtures of toluene and n-hexane have been measured by thermal diffusion forced Rayleigh scattering (TDFRS) and are compared with literature data. For the mass diffusion coefficients a good agreement between different experimental techniques is found. For the Soret coefficients contradictory results are obtained from thermogravitational column measurements, small angle Rayleigh scattering, and TDFRS. Arguments supporting the TDFRS data are presented. © 1995 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.470677
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  • 3
    Digitale Medien
    Digitale Medien
    Thermal diffusivity and structural relaxation in a supercooled liquid by a holographic grating technique (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 248-254 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The decay of a spatial transient temperature grating created within the molecular glass former phenolphthalein-dimethylether (PDE) relates to the hydrodynamic heat diffusion and the dynamics of local density fluctuations. The characteristics of the latter process agree well with the structural α relaxation observed by photon correlation and dielectric spectroscopy near and above the glass transition temperature Tg. When the α-relaxation time approaches the experimental timescale set-in by the thermal diffusivity the specific heat undergoes a dispersion. In either side of this dynamic regime, heat diffusion and α relaxation are independent modes. "Two fluid'' models of the vitreous state conform to the experimental observations. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.470895
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  • 4
    Digitale Medien
    Digitale Medien
    Use of isozyme analysis in the breeding of synthetic rapeseed cultivars (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 115 (1996), S. 0 
    Details
    ISSN: 1439-0523
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Eleven winter rapeseed inbred lines (I4) were characterized according to isozyme banding patterns from seven polymorphic enzyme systems. All lines could be qualitatively and quantitatively distinguished using two enzyme systems, shikimate dehydrogenase (SDH) and diaphorase (DIA). Genetic distances were calculated among lines and 15 selected two-line hybrids were planted as experimental synthetics in field-trials. Syn-0 populations produced seed yields between 0.4% lower and 12.9% higher than the mean yields of the respective parental lines. Syn-1 seed yields were 11–24.1% higher than the respective parental lines and the yield improvement was positively correlated with the genetic distance between the parental lines. This tendency suggests that genetic distances between cross components, calculated from isozyme polymorphism, can be used in prognosis of yield performance of synthetic rapeseed cultivars. Isozyme analysis was also applied to study fertilization behaviour in line mixtures, and differences among parental lines were observed with regard to the tendency for self-pollination or out-crossing. The partially very high outcrossing rate suggests the possible existence of a self-incompatibility system.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1439-0523.1996.tb00960.x
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  • 5
    Digitale Medien
    Digitale Medien
    Random amplified polymorphic DNA variation among German and Dutch asparagus cultivars (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 117 (1998), S. 0 
    Details
    ISSN: 1439-0523
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: DNA polymorphism among nine cultivars of Asparagus officinalis L. was measured using random amplified polymorphic DNA (RAPD). Of 69 reproducible amplification products from 12 arbitrary decamer primers, 49 RAPD markers were polymorphic and could be used to distinguish six German and three Dutch asparagus cultivars. Even with very small sample sizes, genetic similarity measurements based on the RAPD data allowed accurate grouping of the nine cultivars into distinct clusters, with the exception of two individuals which clustered to closely related varieties. Two German cultivars showed high genetic similarity and were distinct from the remaining German varieties. The German and Dutch cultivars were clearly separated by a relatively large genetic distance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1439-0523.1998.tb01943.x
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  • 6
    Digitale Medien
    Digitale Medien
    Versuche an einem mit pulsierendem Gleichstrom betriebenen Abreißbogen (1941)
    Springer
    Electrical engineering 35 (1941), S. 603-608 
    Details
    ISSN: 1432-0487
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Zusammenfassung Einen einfachen und betriebssicheren Abreißbogen erhält man, wenn man der Bogengleichspannung eine Wechselspannung derart überlagert, daß der Minimalwert der resultierenden Spannung unter der Brennspannung des Bogens liegt. Es gelingt mit dieser Anordnung, bei Aluminium-Elektroden mit einer 50periodigen Wechselspannung Brenndauern von etwa 0,004 bis 0,015 s zu erzielen. Die sehr lichtstarke Entladung kann bis zu 45 min bei Aluminium aufrechterhalten werden.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01657570
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  • 7
    Digitale Medien
    Digitale Medien
    X-linked adrenomyeloneuropathy associated with 14 novel ALD-gene mutations: no correlation between type of mutation and age of onset (1999)
    Springer
    Human genetics 〈Berlin〉 105 (1999), S. 116-119 
    Details
    ISSN: 1432-1203
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract. Adrenomyeloneuropathy (AMN) represents a milder form of X-linked adrenoleukodystrophy (ALD), the most frequent peroxisomal disorder. The disease is characterised by an abnormal accumulation of saturated, very long chain, fatty acids, because of altered peroxisomal ß-oxidation that concomitantly leads to demyelination in the central and peripheral nervous systems. ALD shows a highly variable phenotypic expression and extensive mutation analysis in ALD patients has failed to establish a genotype-phenotype correlation, even in the presence of the same ALD-gene defect. Therefore, we have looked for a relationship between the molecular lesion and the age of onset in 19 patients with a well-classified clinical course of AMN. The nearly complete novel spectrum of ALD gene mutations identified has revealed no obvious correlation between the type of mutation and age of AMN onset in this small series. However, intrafamiliar concordance could be observed with respect to the occurrence of adrenocortical insufficiency. This supports the idea of one (or more) additional gene(s) contributing to the phenotypic expression of ALD.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004399900090
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  • 8
    Digitale Medien
    Digitale Medien
    Über das Verhalten einiger Mikroorganismen gegen Pyridin (1943)
    Springer
    Archives of microbiology 13 (1943), S. 365-372 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Zusammenfassung Die geprüften Bakterien (Azotobacter chroococcum, Bacillus glycinophillus) und Pilze (Aspergillus niger, Trichoderma viridis und Fusarium spec.) vermögen Pyridin nicht als Stickstoffquelle zu verwerten, wie die quantitative Pyridinbilanz zeigte. Doch wird die anfängliche Entwicklung von Azotobacter durch Gegenwart von Pyridin beschleunigt, es tritt jedoch eine frühere Autolyse ein. Insgesamt wird die Stickstoffbindung nicht beeinflußt. Es wäre zu prüfen, ob Pyridin bei diesem Organismus als Wasserstoffüberträger wirkt.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00409066
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  • 9
    Digitale Medien
    Digitale Medien
    Erwiderung (1922)
    Springer
    Naturwissenschaften 10 (1922), S. 117-117 
    Details
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01488538
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  • 10
    Digitale Medien
    Digitale Medien
    Genomic in situ hybridization in Brassica amphidiploids and interspecific hybrids (1997)
    Springer
    Theoretical and applied genetics 95 (1997), S. 1320-1324 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key wordsBrassica ; Raphanus ; Interspecific hybrids ; Genomic in situ hybridization ; GISH
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Genomic in situ hybridization (GISH) methods were used to detect different genome components within Brassica amphidiploid species and to identify donor chromatin in hybrids between Brassica napus and Raphanus sativus. In Brassica juncea and Brassica carinata the respective diploid donor genomes could be reliably distinguished by GISH, as could all R-genome chromosomes in the intergeneric hybrids. The A- and C-genome components in B. napus could not be clearly distinguished from one another using GISH, confirming the considerable homoeology between these genomes. GISH methods will be extremely beneficial for monitoring chromatin transfer and introgression in interspecific Brassica hybrids.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220050699
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