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  • 1
    Monograph available for loan
    Monograph available for loan
    Dordrecht [u.a.] : Kluwer
    Associated volumes
    Call number: M 94.0062 ; AWI A6-00-0193
    In: Environmental fluid mechanics
    Description / Table of Contents: Table of Contents: Author's preface. - Introduction. - PART 1: GENERAL CONCEPTS. - Chapter 1. Equations of geophysical fluid dynamics. - Chapter 2. Small oscillations. - Chapter 3. Hydrodynamic instability. - PART 2: PROSCESSES. - Chapter 4. Surface waves. - Chapter 5. Internal waves. - Chapter 6. Geophysical turbulence. - Chapter 7. Rossby waves. - PART 3: GLOBAL PROBLEMS. - Chapter 8. General circulation of the atmosphere. - Chapter 9. Theory of climate. - Chapter 10. Fluid dynamics of planetary interiors. - Selected references. - Index
    Type of Medium: Monograph available for loan
    Pages: xii, 399 S.
    ISBN: 0792304268
    Series Statement: Environmental fluid mechanics 6
    Uniform Title: Teoretičeskie osnovy geofizičeskoj gidrodinamiki
    Classification:
    Geodynamics
    Language: English
    Location: Upper compact magazine
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Branch Library: AWI Library
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  • 2
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Journal of organizational change management 10 (1997), S. 47-60 
    ISSN: 0953-4814
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Recognizes the link between rhetoric and organizational outcomes in organizational theory. Suggests that it is a link which could also be developed in organizational change management; and that selected literary texts could provide a valid learning resource for exploring the role of root metaphors in organizational culture and in management development. Literary artists filter "real life" through a personal, but sensitively attuned conduit; so their "findings" and "conclusions" provide a challenging alternative to the traditional case study. If, for example, literary texts suggest that root metaphors in organizational culture influence action, then it would follow that management initiative to change a root metaphor could lead to change in action outcomes.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 1992-01-01
    Print ISSN: 1392-1843
    Electronic ISSN: 2029-7009
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by Taylor & Francis
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  • 4
    ISSN: 1432-203X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Somatic embryogenesis and subsequent plant regeneration of Euonymus europaeus L (European Spindle Tree) were obtained from square pieces of mature zygotic embryos with an intervening callus phase. Callus and somatic embryos were induced using a Murashige and Skoog's semi-solid basal medium supplemented with several combinations of auxins and cytokinins. The greatest number of somatic embryos was obtained with a continuous exposure to 22.8 μM indoleacetic acid and 0.046 μM kinetin. The frequency of somatic embryogenesis from zygotic embryos depends on the cold conservation time of seeds. The embryos frequently germinated on the same medium. Further development of somatic embryos into plantlets was achieved on a medium devoid of growth regulators.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1572-9508
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Since 1984, the CEA-LETI-LIR (Infrared Laboratory) has been involved in development of Si:Ga/DRO hybrid detector arrays dedicated to imaging of astronomical sources in the 8–13 μm range. Successively, 32×32 element arrays were successfully manufactured for the ISOCAM camera and 64×64 arrays were fabricated for ground-based imaging. The latter detectors have been integrated in 3 cameras (C10μ, CAMIRAS and TIMMI for ESO) and have led to excellent astrophysical results since 1990. To equip instruments to be mounted on very large telescopes such as the European VLT at ESO, manufacture of new arrays has been undertaken and is currently under way at CEA-LETI-LIR. These new arrays will have a 128×192 format and will present the outstanding essential feature that their storage capacity will be able to be changed according to observation conditions (2 capacities will be implemented in the pixel). The main characteristics of these new detectors will be presented in this paper.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 212 (1994), S. 159-165 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present synthetic images of accretion disks around young stars computed from a model where the disk's vertical structure is solved assuming hydrostatic equilibrium. The disk's brightness results from three emission processes: (1) the reprocessing of stellar photons in the optically thick disk's regions; (2) the scattering of stellar photons in the optically thin parts of the disk; and (3) the thermal emission of the disk due to viscous energy dissipation during the accretion process. We discuss the relative importance of these emission processes at wavelengths ranging from 1.2 to 20μm.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-5087
    Keywords: Euonymus europaeus ; dormancy ; gibberellic acid ; putrescine ; spermidine ; diamine oxidase: (DAO) ; polyamine oxidase: (PAO)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Previously we showed that dormancy break of spindle tree embryos after gibberellic acid (GA3) treatment was followed by an increase in arginine decarboxylase (ADC) activity (Béranger-Novat N. et al., Plant Sc. 102: 139–145, 1994). These results indicated that arginine decarboxylase pathway mediate hormone-induced growth responses in spindle tree embryos. In the present investigation we show that in GA3-treated embryos diamine oxidase (DAO) increases immediately after putrescine content and the increase in DAO activity paralleles the accumulation of putrescine at the beginning of the culture (before the visible appearance of the radicle). In this system polyamine oxidase (PAO) increases immediately after DAO activity and follows closely the increase in spermidine content. These results demonstrate a direct correlation between the biosynthesis and oxidation of putrescine and spermidine. At every stage of development DAO and putrescine levels are lower than spermidine and PAO levels. Dormant embryos can be distinguished from GA3-treated embryos by a complete lack of putrescine accumulation. In dormant embryos compared to GA3-treated embryos DAO changed more or less in parallel and on the whole seemed to follow the same content and distribution, but the kinetics of the activation of DAOs were different in dormant embryos with a delay of 1.5 day for the first and 1 day for the second peak. During the first days of culture at least up to 4 days the distribution of spermidine and PAO in GA3-treated embryos followed the same pattern observed in dormant embryos, but the levels of spermidine and PAO were greatly reduced in dormant embryos. On the other hand the kinetics of the activation of PAOs were different in dormant embryos with a delay of 1 day. The results suggest that dormant embryos are deficient in their ability to synthesize polyamines efficiently and support the view that spermidine catabolism (via PAO pool) is limiting in untreated embryos during the first days of culture.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-5087
    Keywords: Euonymus europaeus L. ; polyamines ; putrescine ; root ; somatic embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In vitro formation of roots and somatic embryos is obtained from cotyledon explants of a Spindle tree (Euonymus europaeus L.) cultured on two different media: a medium inducing callus formation and the production of roots, and a medium inducing callus formation, root and somatic embryo production. We studied the effects of α-difluoromethylornithine (DFMO), a specific, irreversible inhibitor of ornithine decarboxylase (ODC) on root and somatic embryo production, growth and titers of putrescine in Euonymus explants and explant-derived calli. Early changes in putrescine levels were detected in both cultures before the visible emergence of roots or somatic embryos. DFMO rapidly inhibited putrescine accumulation and growth in non-embryogenic calli and highly stimulated rooting activity. DFMO partially inhibited putrescine accumulation in embryogenic calli. This inhibition had no effects on callus growth but significantly reduced the time of emergence of roots and highly stimulated somatic embryo production. The relationship among putrescine, putrescine metabolism, growth, root and somatic embryo formation is discussed.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Powder metallurgy and metal ceramics 29 (1990), S. 857-859 
    ISSN: 1573-9066
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Russian chemical bulletin 42 (1993), S. 954-955 
    ISSN: 1573-9171
    Keywords: four-membered silicon-phosphorus-containing heterocycles, synthesis ; 1,2-λ3,4-azaphosphasiletidines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Four-membered heterocycles have been prepared by the reaction of (methyldichlorosilyl)- and (dimethylchlorosilyl)methyldichlorophosphines with primary aliphatic amines: 1,2λ3,4-azaphosphasiletidines and acyclic (methylaminosilyl)methyldiamidophosphonites. The latter eliminate primary amines on heatingin vacuo to give 1,2λ3,4-azaphosphasiletidines. The structures of the compounds thus obtained have been studied by31P,29Si,1H, and13C NMR.
    Type of Medium: Electronic Resource
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