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  • Articles: DFG German National Licenses  (23)
  • 1985-1989  (15)
  • 1970-1974  (6)
  • 1960-1964  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Energy transport equations for toroidal plasmas (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 1288-1290 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The differences in the energy transport equations for tokamaks and stellarators associated with ΓrEr are discussed, where Γr is the radial particle flux and Er is the radial electric field. The energy exchange quantities are evaluated in terms of poloidal plasma flow, pressure gradient, and Er. It is found that for stellarators the radial flux Γr in ΓrEr should be Γr =Γna, the nonaxisymmetric flux, instead of the total particle flux.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.866758
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Parthenogenesis, apogamy and apospory in Alaria crassifolia (Laminariales) (1973)
    Springer
    Marine biology 18 (1973), S. 327-332 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In cultures of Alaria crassifolia Kjellman, unfertilized eggs developed normally into haploid sporophytes which differentiated into a holdfast, stipe and blade with a midrib. The terminal cells of a male gametophyte grew apogamously into haploid sporophytes with narrow blades which lack the midrib. Further, diploid gametophytes were formed by apospory from vegetative cells of a diploid sporophyte. They were monoecious and their fertilized eggs developed into tetraploid sporophytes. Nuclear phases of the sporophytes and gametophytes concerned were confirmed by cytological observations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00347797
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  • 3
    Electronic Resource
    Electronic Resource
    Dust in the Upper Atmosphere (1972)
    [s.l.] : Nature Publishing Group
    Nature 237 (1972), S. 328-329 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The observations were with a laser radar with transmitted energy of 3 J in pulses 2 µs long; the repetition rate was 300 h1, and the wavelength of the radiation was 0.6943 um. The receiver had a collecting area of 0.39 m2, and a bandwidth of 2.0 nm; its efficiency was 2%. We first observed ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/237328a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Structure of 4-chlorobenzyl alcohol (1988)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 44 (1988), S. 482-484 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270187010965
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  • 5
    Electronic Resource
    Electronic Resource
    Antitumor potency of ascorbic, dehydroascorbic or 2, 3-dike-togulonic acid and their action on deoxyribonucleic acid (1971)
    Springer
    Journal of cancer research and clinical oncology 76 (1971), S. 1-7 
    Details
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die im obigen Titel erwähnten, drei nutritiv bedeutenden Endiol-Verbindungen können Sarkom-180 hemmen. Die hemmende Wirksamkeit von Ascorbinsäure wird durch Cupri-Ionen verstärkt. Diese Endiolen depolymerisieren DNS, besonders unter Mitwirkung von Kupfer. Dehydroascorbinsäure besitzt die Fähigkeit, denaturierte DNS zu brechen und eine einstrangige Spaltung für native Nucleinsäure zu bewirken. Eine Mischung von Dehydroascorbat und Cu zersetzt Apurinsäure und trennt daraus Deoxy-cyctidylsäure. Nur die Oligo-Form von Pyrimidin-Tetra- und Penta-Nucleotiden wird durch dieses Reagens desintegriert. Die Ergebnisse wurden im Zusammenhang mit der metabolischen Carcinostasis und der Formulierung des cellulären, Differenzierung und Anomalisation verursachenden Yamafuji-Effekts kurz diskutiert.
    Notes: Summary Three nutritively significant enediol compounds mentioned in above title can inhibit sarcoma-180 growth. The inhibition by ascorbic acid is enhanced by cupric ions. These enediols depolymerize DNA, particularly in co-operation with copper. Dehydroascorbic acid is able to break denatured DNA and to bring about single strand scission for native one. A mixture of dehydroascorbate and Cu decomposes apurinic acid and liberates deoxy-cytidylic acid from it. Only the oligo-form pf pyrimidine tetra- and penta-nucleotides is disintegrated by this reagent. The results were briefly discussed in relation to metabolic carcinostasis and to the formulation of Yamafuji effect causing cellular differentiation and anomalization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00304282
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  • 6
    Electronic Resource
    Electronic Resource
    Topographic projections from the basal ganglia to the nucleus tegmenti pedunculopontinus pars compacta of the cat with special reference to pallidal projections (1988)
    Springer
    Experimental brain research 71 (1988), S. 298-306 
    Details
    ISSN: 1432-1106
    Keywords: Basal ganglia ; Globus pallidus ; Nucleus tegmenti pedunculopontinus ; Topographic organization ; Horseradish peroxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Projections from the basal ganglia to the nucleus tegmenti pedunculopontinus pars compacta (TPC) were studied by using anterograde and retrograde tracing techniques with horseradish peroxidase conjugated with wheat germ agglutinin (WGA-HRP) in the cat. Following WGA-HRP injections into the medial TPC area, a substantial number of retrogradely labeled cells were seen in the entopeduncular nucleus (EP) and medial half of the substantia nigra pars reticulata (SNr), whereas following WGA-HRP injections into the lateral TPC area, labeled cells were marked in the caudal half of the globus pallidus (GP) and lateral half of the SNr. To confirm the retrograde tracing study, WGA-HRP was injected into the EP or the caudal GP, and anterograde labeling was observed in the TPC areas. Terminal labeling was located in the medail TPC area in the EP injection case, while terminal labeling was observed in the lateral TPC area in the caudal GP injection case. Projections from the striatum to the pallidal complex (the EP and the caudal GP) were also studied autoradiographically by injecting amino acids into various parts of the caudate nucleus and the putamen. Terminal labeling was distributed over the whole extent of the EP and the rostral GP following injections into the rostral striatum (the head of the caudate nucleus or the rostral part of the putamen), while terminal labeling was distributed over the caudal GP following injections into the caudal striatum (the body of the caudate nucleus or the caudal part of the putamen). From these findings, we conclude that there exists a medio-lateral topography in the projection from the basal ganglia to the TPC: The EP receives afferent projections from the rostral striatum and projects to the medial TPC area, whereas the caudal GP receives projections from the caudal striatum and sends fibers to the lateral TPC area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00247490
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  • 7
    Electronic Resource
    Electronic Resource
    Reduced noradrenaline turnover in streptozotocin-induced diabetic rats (1985)
    Springer
    Diabetologia 28 (1985), S. 692-696 
    Details
    ISSN: 1432-0428
    Keywords: Sympathetic nervous system activity ; noradrenaline turnover ; streptozotocin rat ; brown adipose tissue ; heart ; pancreas ; insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To clarify whether activity of the sympathetic nervous system is decreased in streptozotocin-induced diabetic rats, noradrenaline turnover, which is a reliable indicator of sympathetic nervous system activity, was measured in the interscapular brown adipose tissue, heart and pancreas of streptozotocin diabetic rats. Results from studies using inhibition of noradrenaline biosynthesis with α-methyl-p-tyrosine demonstrated significant reductions (p〈0.05-0.001) in sympathetic nervous system activity in the interscapular brown adipose tissue, heart and pancreas of streptozotocin (65 mg/kg) diabetic rats, compared with measurements in streptozotocin (35 mg/kg) diabetic and saline-control rats. The daily injections of neutral protamine Hagedorn insulin to streptoz/otocin (65 mg/kg) diabetic rats prevented the decrease of noradrenaline turnover in the interscapular brown adipose tissue and heart significantly (p〈0.02), but this was less marked in pancreas, compared with non-treated streptozotocin (65 mg/kg) diabetic rats. Furthermore reduced noradrenaline turnover was also observed in the control rats which showed comparable changes in body weight to the rats injected with streptozotocin (65 mg/kg). These results suggest that poorly controlled streptozotocin diabetic rats may have reduced sympathetic nervous function, and that insulin therapy might prevent this.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291978
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  • 8
    Electronic Resource
    Electronic Resource
    Focal luxury perfusion with an early-filling vein in relation to neurological symptoms evoked by heat (1985)
    Springer
    Journal of neurology 232 (1985), S. 58-59 
    Details
    ISSN: 1432-1459
    Keywords: Transient ischaemic attack ; Luxury perfusion ; Body temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 50-year-old man with a 1-year history of transient attacks of left total hemiparesis was admitted to hospital with a complaint of increasing frequency of attacks. Minimal or moderate left hemiparesis was elicited by elevation of environmental temperature when taking a hot bath or a hot shower. Right carotid angiography revealed an early-filling vein near the right central sulcus. An increase of focal luxury perfusion by elevation of body temperature seemed to cause relative ischaemia in this paracentral gyrus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00314044
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  • 9
    Electronic Resource
    Electronic Resource
    Recent environmental tritium levels in Japan-II Coastal seawater and lake water (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 104 (1986), S. 141-150 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Tritium concentrations were analyzed for coastal seawater and lake water collected from various places in Japan. Low tritium concentrations were observed for coastal seawater of small islands and it was attributed to a short residence time of the ground-water in such a small island. Tritium concentrations in lake water showed a significant variation. And it was revealed that the size of the lake and its drainage area were the dominant factors controlling the tritium concentrations in lakes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02163257
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  • 10
    Electronic Resource
    Electronic Resource
    Spectroscopic observations of the early-type contact binary AW Lacertae (1989)
    Springer
    Space science reviews 50 (1989), S. 354-354 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Spectroscopic observations were performed of the early-type contact binary AW Lac with an image-intensified coude spectrograph of 1.9-m telescope at the Okayama Astrophysical Observatory. A total of twenty-two spectra covering blue region with a dispersion of 16 Amm-1 have been secured on Kodak IIa-O baked plates. In every spectra sharp interstellar CaII H,K lines are clearly seen. The spectral type of AW Lac has been estimated as early B, which substantially confirms the one adopted in the photometric analysis by Jiang et al. (1983) and is diffrent from A0 listed in General Catalogue of Variable Stars (Kholopov et al. 1985). Contrary to the suggestion by the photometric solution of Jiang et al., no definite secondary lines could be separated, though some indications of light contamination due to the secondary component are surely observed. This would imply that the light ratio of the components should be somewhat smaller than that derived by photometric analysis. No emission features appeared either. The measurement of radial velocities of the primary component for the orbital elements was made for twenty spectra by a conventional method. It was difficult to measure the radial velocities because the lines are quite broadened and deformed. Hence the measured values for the radial velocities should be regarded as rather preliminary. The derived spectroscopic elements, combined with the photometric data, give the absolute dimensions of the system for each assumed mass ratio q. For q = 1, being the adopted photometric solution by Jiang et al., we obtain too small value for the primary's mass, comparing with its spectral type. For the mass ratio as small as q = 0.6, we can obtain a reasonable value for the mass of the primary. However, in order to get more definite conclusion the cross-correlation method would be more appropriate for the spectroscopic analysis of this system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215959
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