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  • Electronic Resource  (16)
  • 1985-1989  (16)
  • 1970-1974
  • 1987  (11)
  • 1986  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Regioselective preparation of vinylcyclopentadienes and selected cycloadditions (1986)
    s.l. : American Chemical Society
    The @journal of organic chemistry 51 (1986), S. 2939-2944 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00365a015
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Surfactant aggregation in the presence of polymers (1987)
    s.l. : American Chemical Society
    Langmuir 3 (1987), S. 382-387 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00075a019
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Completed suicide in discharged psychiatric inpatients (1987)
    Springer
    Social psychiatry and psychiatric epidemiology 22 (1987), S. 93-98 
    Details
    ISSN: 1433-9285
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fifty-three psychiatric ex-inpatients, who committed suicide within a year of their discharge, were compared with two control groups (patients who had not committed suicide) using the method of a retrospective analysis of the clinical charts. No significant differences were found between suicides and controls with regard to the most socio-demographic and clinical variables investigated. In contrast, important differences were found with regard to the previous suicidal behavior, and the nature, frequency and seriousness of suicidal attempts, all of which proved to be of prognostic value. Clinical treatment appeared to have helped the suicidal patient temporarily; among the severely ill population it probably fails to exert longer-lasting effects. As no correlation was found between the duration of hospital stay and the length of survival in the community, the importance of extramural services must be emphasized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00584011
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Biotransformation of tetramethyl-limonene (1986)
    Springer
    Applied microbiology and biotechnology 24 (1986), S. 31-34 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Microorganisms which efficiently oxidize limonene 1, do not attack 3,3,5,5-tetramethyllimonene 4. Gibberella cyanea which converts limonene 1 into 8-p-menthene-1,2-diol 2, transforms 4 into 8,9-epoxy-3,3,5,5-tetramethyl-1-menthenol-6 5 as major product. Although epoxidation is not completely stereoselective, the substituents at C-4 and C-6 are always trans to each other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266281
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Ordered HGMS filters in the transverse configuration (1987)
    Springer
    Applied physics 44 (1987), S. 161-166 
    Details
    ISSN: 1432-0630
    Keywords: 85.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A numerical solution for the Navier-Stokes equation is obtained for the flow conditions in an ordered high-gradient magnetic filter. Hence, capture efficiencies are calculated for this filter operated in the transverse configuration, with field, flow, and collector-wire axis mutually perpendicular. Good agreement with experiment is obtained over a wide range of filter parameters. Comparisons are made with results obtained by other models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00626418
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Particle accumulation on a single wire in transverse HGMS configuration (1987)
    Springer
    Applied physics 42 (1987), S. 117-124 
    Details
    ISSN: 1432-0630
    Keywords: 85.70 ; 41
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An experimental investigation of particle accumulation on a single wire in the transverse HGMS configuration is presented. For saturation buildup we obtain a monotonic decrease of the coefficient of static frictionf sat with the flow velocityv a on the basis of the “friction model”. The power law of the dependence of the saturation accumulation area onv a , predicted by this model, is experimentally verified. Furthermore, we present an empirical law describing the dependence of the accumulation area on timeτ and on flow velocityv a for the entire buildup process. From the investigation of the initial accumulation we conclude that existing theories of the so-called capture radius do not satisfactorily describe the situation near the end of a capture wire.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616720
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  • 7
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1987)
    Springer
    European food research and technology 184 (1987), S. 125-132 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01042086
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Comment on "Reinterpretation of the thickness-dependent conductivity of thin platinum films" (1987)
    Springer
    Journal of materials science 6 (1987), S. 985-986 
    Details
    ISSN: 1573-4811
    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/BF01729892
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  • 9
    Electronic Resource
    Electronic Resource
    Rate equation for photochromic glasses considering both thermal and optical regeneration (1987)
    Springer
    Journal of materials science 22 (1987), S. 2058-2062 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The problems of describing the behaviour of photochromic glasses by a rate equation are discussed. A rate equation considering both thermal and optical regeneration is derived from optical measurements. The stationary-state absorptivity of the glasses under the influence of optical bleaching of various strengths is measured and compared to theoretical predictions from the rate equation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01132939
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Aerobic and anaerobic metabolism of the freshwater oligochaete Tubifex sp. (1987)
    Springer
    Hydrobiologia 155 (1987), S. 157-158 
    Details
    ISSN: 1573-5117
    Keywords: freshwater oligochaete ; anaerobiosis ; metabolism ; dissolved organic material
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The freshwater oligochaete Tubifex shows several mechanisms of metabolic adaptations, enabling the worms to occupy saprobial habitats of extremely variable oxygen content. Under normoxic conditions the metabolism of the worms is mainly aerobic with a respiratory ratio of 0.7. Under hypoxic conditions, metabolism of energy sources via aerobic and anaerobic pathways is observed. During complete anoxia acetate and propionate are the main products of glycogen degradation and they are excreted in constant rates into the water. A retransfer of the worms to aerobic conditions enables them to regain aerobic metabolic state within about 60 min. In two Tubifex habitats, which we have characterized, concentrations of dissolved organic material (DOM) were low in the surface water, but high in the interstitial water from sediments. The short-chain fatty acids acetate and propionate reached concentrations up to 1 mmole/liter. Employing radioisotope techniques, we demonstrated that Tubifex can achieve an integumentary uptake of acetate and propionate from artificial tap water at naturally occurring concentrations of 5 to 1000 μM. Levels of uptake (600 to 800 nmoles/g wwt.hr) and transport characteristics are very similar to those of marine invertebrates associated with detritus rich sediments. The uptake is susceptible to inhibition by structurally analogous compounds and to metabolic inhibition. Furthermore, DOM uptake in Tubifex is susceptible to inhibition by oxygen depletion, ouabain and Na+-depletion. The results may suggest that a carrier system for DOM transport exists in the integument of the worms. The uptake system is highly specific for aliphatic C2 and C3 carboxylic acids. The absorbed volatile fatty acids are rapidly metabolized. Only 15 min after absorption, a considerable amount of radioactivity is present in the glycogen storage of the animals. Depending on the substrate concentration assumed to be available for uptake, up to 40 per cent of the oxidative requirement of the worms may be attained by using dissolved organic material from the interstitial water of their habitat. Supported by the Deutsche Forschungsgemeinschaft (Ho 631/9-9).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00025642
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