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  • 1
    Electronic Resource
    Electronic Resource
    A chemically-defined medium supporting growth and providing cells converting compactin to pravastatin (1999)
    Springer
    Journal of industrial microbiology and biotechnology 22 (1999), S. 78-79 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: Actinomadura; pravastatin; compactin; nutrition; vitamins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Actinomadura sp strain 2966, which converts compactin to pravastatin, requires vitamins to support its growth. Addition of folic acid, thiamine and cyanocobalamine allowed growth in chemically-defined medium. Cells grown in a chemically-defined medium were as capable of converting compactin to pravastatin as cells grown in a complex medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.2900602
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of the illumination time when treating port-wine stains (1995)
    Springer
    Lasers in medical science 10 (1995), S. 93-104 
    Details
    ISSN: 1435-604X
    Keywords: Copper vapour laser ; Electron microscopy ; Illumination time ; Numerical modelling ; Optimal treatment ; Port-wine stain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Physics , Technology
    Notes: Abstract This paper reports the electron microscopy results obtained from two patients who were treated with 5 W of yellow (578 nm) light from a copper vapour laser with an illumination time of 3.6 ms and a 0.3 mm spot diameter. The endpoint of treatment was transient blanching. Following treatment, erythema was observed. There was minimal damage to the epidermis and non-vascular tissue such as the nerve fibres. There was severe damage to the endothelial cells of the ectatic vessels. Twenty-four hours after treatment, platelet activation and collagen were present, indicating that these vessels were no longer viable. Theoretical calculations are used to determine the flow of heat within and away from a 50μm diameter vessel. From this, heating of the entire vessel is shown to occur with illumination times of 4 ms, with minimal heating of the non-vascular tissue. Shorter illuminations do not heat the entire vessel, while the use of longer illumination times will cause excessive damage to the surrounding non-vascular tissue. Illumination times close to 4 ms must be regarded as optimal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150846
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  • 3
    Electronic Resource
    Electronic Resource
    Copper vapour laser treatment of port wine stains: a patient questionnaire (1990)
    Springer
    Lasers in medical science 5 (1990), S. 43-49 
    Details
    ISSN: 1435-604X
    Keywords: Copper vapour laser ; Argon ion laser ; Port wine stains ; Telangiectasia ; Spider naevi ; Questionnaire
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Physics , Technology
    Notes: Abstract A questionnaire was sent to 242 patients who had undergone treatment with yellow light (578 nm) from a copper vapour laser for a port wine stain (PWS), for facial telangiectasia (FT), or for a spider naevus (SN). The questionnaire covered the social implications of the lesion, the physical appearance of the lesion after treatment and the patient's judgement of how the treatment has affected them. Replies were received from 73% of the patients. The replies revealed that 83% PWS, 74% FT, and 81% SN patients felt there had been an improvement in their appearance compared with 2.5% PWS, 14% FT, and 7.5% SN patients who felt that their appearance had changed for the worse. The overall impression of the treatment was also very positive, especially with PWS patients, 91% would recommend the treatment to others, 84% would have the treatment again and 60% indicated their feelings regarding their overall treatment and the effect it had on their lives was very good.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02032622
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  • 4
    Electronic Resource
    Electronic Resource
    Rates of ethiodide formation and the stereochemistry of ajmaline at C-21 (1963)
    Springer
    Cellular and molecular life sciences 19 (1963), S. 460-461 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Les auteurs ont mesuré les vitesses de réaction entre l'ajmaline plus dérivés et l'iodure d'éthyle. Les conclusions stéréochimiques deTaylor au C-21 en ont été confirmées.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150646
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  • 5
    Electronic Resource
    Electronic Resource
    Behavior of trifluralin in aquatic model ecosystems (1980)
    Springer
    Bulletin of environmental contamination and toxicology 24 (1980), S. 134-141 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Conclusions These data illustrate the variation that can be obtained when using different model ecosystem designs in studying the behavior of pesticides in the aquatic ecosystem. These differences were probably related to the rapid metabolism and degradation of soil-incorporated trifluralin in the first experiment and to the continuous input of trifluralin in the second experiment. A very important difference between the two ecosystems was the toxic effect of trifluralin on the algae and fish during the second experiment. We believe that the risks of trifluralin in the aquatic ecosystem are greatest when there is a continuous input of tribluralin. With an occasional soil-incorporated input, the degradation processes would minimize this risk.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01608087
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  • 6
    Electronic Resource
    Electronic Resource
    Immobilization of Penicillium chrysogenum: spore growth on Celite (1989)
    Springer
    Applied microbiology and biotechnology 30 (1989), S. 487-491 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Penicillium chrysogenum spores have been immobilized by adsorption on two grades of wet or dry diatomaceous earth particles, Chromosorb-W and Celite R-633. Almost 90% of the spores were adsorbed within 2 h and those remaining in suspension were removed by washing to minimise the growth of free mycelia. After germination the immobilized biomass was almost independent of the spore loading on the particles and whether or not the spore suspension was added to wet or dry particles. The free biomass obtained was less than 5% of the immobilized biomass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263853
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  • 7
    Electronic Resource
    Electronic Resource
    YBa2Cu3O7-δ single crystals revisited: Scanning probe data on very pure samples grown in BaZrO3 crucibles (1998)
    Springer
    Applied physics 66 (1998), S. 1219-1222 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.16.Ch; 74.50.+r
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: 2 Cu3O7-δ (YBCO) single crystals grown in BaZrO3 crucibles by scanning and friction force microscopy (SFM, FFM) as well as by scanning tunneling microscopy (STM) and angle resolved X-ray photo-electron spectroscopy (ARXPS). By STM and SFM, clean stepped terraces are observed on as-grown crystals. Friction contrast, however, implies the presence of different materials, presumably traces of flux. After oxidation of the YBCO crystals, particles of 10 to 100 nm in size appear on the surface. Their number per unit area increases with time when the crystal is stored in air. Complementary information on such aged YBCO surfaces is provided by ARXPS. These data reveal 3 nm of mainly BaCO3 and CuO on top of the YBCO matrix and suggest a very slow aging rate of the crystals, which is 20 times slower than for epitaxial thin films. The superconducting energy gap has been determined on fresh crystals by scanning tunneling spectroscopy (STS) at 4.6 K as 2Δ≈30 meV. By spatially resolved tunneling spectroscopy the vortex lattice in a magnetic field of 4 T has been imaged. The inter-vortex distance amounts to 20±2 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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  • 8
    Electronic Resource
    Electronic Resource
    Stone algebra extensions with bounded dense sets (1997)
    Springer
    Algebra universalis 37 (1997), S. 1-23 
    Details
    ISSN: 1420-8911
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract. Stone algebras have been characterized by Chen and Grätzer in terms of triples $ (B, D, \varphi) $ , where D is a distributive lattice with 1, B is a Boolean algebra, and $ \varphi $ is a bounded lattice homomorphism from B into the lattice of filters of D. If D is bounded, the construction of these characterizing triples is much simpler, since the homomorphism $ \varphi $ can be replaced by one from B into D itself. The triple construction leads to natural embeddings of a Stone algebra into ones with bounded dense set. These embeddings correspond to a complete sublattice of the distributive lattice of lattice congruences of S. In addition, the largest embedding is a reflector to the subcategory of Stone algebras with bounded dense sets and morphisms preserving the zero of the dense set.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00000326
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  • 9
    Electronic Resource
    Electronic Resource
    Nouveaux livres (1948)
    Springer
    Cellular and molecular life sciences 4 (1948), S. 491-491 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02164516
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  • 10
    Electronic Resource
    Electronic Resource
    A definitive test plan for biaxial fatigue crack growth direction (1977)
    Springer
    International journal of fracture 13 (1977), S. 377-381 
    Details
    ISSN: 1573-2673
    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
    URL: http://dx.doi.org/10.1007/BF00040154
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