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  • 1
    Digitale Medien
    Digitale Medien
    Stimulated Raman scattering in cannonball targets (1987)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 3276-3282 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Stimulated Raman scattering (SRS) in cannonball targets was experimentally investigated. Above the observed threshold laser intensity, the energy conversion to superhot electrons (E=100–800 keV) shows an increase of five orders of magnitude without saturation. Major differences in observing SRS from cannonball targets and directly driven targets lie in the background electron temperature and the electron plasma density where SRS occurs. A simple model calculation is presented and is compared with the data to infer coronal temperatures. The electron density ranges from 5×1019 to 3×1020 cm−3 and the coronal temperature is 0.2 keV for cannonball targets including cavity targets, while the density ranges from 3×1020 to 6×1020 cm−3 and the temperature is 1 keV for the directly driven target. The generation efficiency of SRS light is strongly correlated with superhot electron generation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.866504
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  • 2
    Digitale Medien
    Digitale Medien
    X-ray and radioactive measurements in ICF research at ILE Osaka (invited) (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 1128-1132 
    Details
    ISSN: 1089-7623
    Quelle: AIP Digital Archive
    Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: The experimental basis and instrumentation for the Gekko XII laser fusion program developed at the Institute of Laser Engineering (ILE), Osaka University are presented. Many diagnostics are in use to evaluate the key parameters of target implosion in an extremely dense, short period region. In this paper, we describe the present status and future planning of these diagnostics, such as x-ray, radioactive, and reaction particle measurement, because of their importance for fuel ρR determination.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1138194
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  • 3
    Digitale Medien
    Digitale Medien
    Hydrodynamic instability in an ablatively imploded target irradiated by high power green lasers (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 2875-2883 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Time evolution of the ablation front displacement between concave and convex regions of a surface corrugated spherical target was observed by flash x-ray radiography. The results are compared with calculations based on the linearized fluid equation combined with a one-dimensional simulation to describe the ambient fluid motion. In the analysis, perturbation of the fluid is scaled up to kδ∼2π (k is the perturbation wavenumber and δ is the perturbation amplitude) for the acceleration phase with perturbation mode numbers of l=20 and 30. The practical perturbation of the target requires a relaxation time to form the nominal eigenstate of the Rayleigh–Taylor instability, which results in time delay of instability growth onset.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.866996
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  • 4
    Digitale Medien
    Digitale Medien
    Scalings of implosion experiments for high neutron yield (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 2884-2893 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: A series of experiments focused on high neutron yield has been performed with the Gekko-XII green laser system [Nucl. Fusion 27, 19 (1987)]. Deuterium–tritium (DT) neutron yield of 1013 and pellet gain of 0.2% have been achieved. Based on the experimental data from more than 70 irradiations, the scaling laws of the neutron yield and the related physical quantities have been studied. Comparison of the experimental neutron yield with that obtained by using a one-dimensional fluid code has led to the conclusion that most of the neutrons produced in the stagnation phase of the computation are not observed in the experiment because of fuel–pusher mixing, possibly induced by the Rayleigh–Taylor instability. The coupling efficiency and ablation pressure have been calculated using the ion temperature measured experimentally. A coupling efficiency of 5.5% and an ablation pressure of 50 Mbar have been obtained.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.866997
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  • 5
    Digitale Medien
    Digitale Medien
    Skin pigmentation associated with minocycline therapy (1989)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 121 (1989), S. 0 
    Details
    ISSN: 1365-2133
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: A patient on long-term minocycline therapy developed blue-black discoloration on the legs. Skin biopsy specimens from the pigmented areas were examined by light and electron microscopy and energy-dispersive X-ray microanalysis. Pigmented granules were present at all levels of the dermis and subcutaneous fat tissues. Ultrastructural examination showed electron-dense graular material within the cytoplasm of dermal macrophages and energy-dispersive X-ray microanalysis indicated that the granules contained iron. Thyroid tissue obtained by aspiration biopsy showed the presence of fine brown granules within the cytoplasm of the follicular epithelial cells. An extract of skin from the pigmented areas was subjected to high performance liquid chromatography and minocycline was detected.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2133.1989.tb01807.x
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  • 6
    Digitale Medien
    Digitale Medien
    Effect of aloe lectin on deoxyribonucleic acid synthesis in baby hamster kidney cells (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 669-671 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Aloe arborescent varnatalensis ; glycoprotein, aloe lectin ; deoxyribonucleic acid synthesis ; baby hamster kidney cells
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary A homogeneous glycoprotein (mol.wt 40,000) containing 34% carbohydrate was isolated fromAloe arborescens var.natalensis. At a concentration of 5 μg/ml, this glycoprotein was shown to stimulate deoxyribonucleic acid (DNA) synthesis in baby hamster kidney (BHK) cells and to have the properties of a lectin which reacts with sheep blood cells. The chemical and physical properties of the glycoprotein (aloe lectin) are also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02007712
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  • 7
    Digitale Medien
    Digitale Medien
    Effect of lipophilic cations on thiamine transport system in isolated rat hepatocytes (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 1022-1023 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Thiamine uptake ; rat hepatocyte ; lipophilic cations
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The effect of lipophilic cations such as triphenylmethylphosphonium, tetraphenylphosphonium and tetraphenylarsonium in addition to dibenzyldimethylammonium on thiamine transport in isolated rat hepatocytes was studied. Lipophilic cations at the concentration 10 μM almost completely inhibited thiamine uptake. Kinetic studies showed that these compounds were competitive inhibitors with a very high affinity. These results suggest that lipophilic cations in addition to quaternary ammonium compounds also share a common binding site for thiamine in isolated rat hepatocytes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01940715
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  • 8
    Digitale Medien
    Digitale Medien
    Thiamine-binding activity ofSaccharomyces cerevisiae plasma membrane (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 607-608 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Thiamine ; thiamine-binding ; yeast plasma membrane
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The specific binding activity to [14C]thiamine was found to be located in the plasma membrane ofSaccharomyces cerevisiae. The activity was inhibited by several thiamine analogs and it was hardly detectable in the plasma membrane from a thiamine transport mutant ofSaccharomyces cerevisiae. Some properties of the thiamine-binding activity of yeast plasma membrane are discussed in connection with those of the thiamine transport system.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01955555
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  • 9
    Digitale Medien
    Digitale Medien
    Choline accumulation in isolated rat hepatocytes (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 889-892 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Choline ; choline accumulation ; Na+-and energy-dependent process ; choline analogs ; quaternary ammonium compounds ; rat hepatocytes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The accumulation of non-metabolized choline in isolated rat hepatocytes is concentrative in Na+ medium, whereas the accumulation does not exceed unity in a Li+ medium. Ouabain and 2,4-dinitrophenol inhibited the choline uptake. These results indicate that choline is taken up by rat hepatocytes via a Na+-and energy-dependent process, and choline oxidase is not directly connected with the choline transport system.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01941191
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  • 10
    Digitale Medien
    Digitale Medien
    Quantitative immunohistochemistry of metallothionein in rat placenta (1989)
    Springer
    Histochemistry and cell biology 90 (1989), S. 365-369 
    Details
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The presence of metallothionein (MT) was demonstrated in placentae from cadmium-exposed and control rats by an immunohistochemical technique, using peroxidase as label and the diaminobenzidine procedure for the staining reaction. The protein was found in different regions of the placenta, i.e. in trophoblastic labyrinth, in spongiotrophoblast and in visceral yolk sac. Cytophotometric analysis of the final reaction product revealed that the amount of MT was increased in the placental labyrinth of cadmium-exposed rats. Increases were found in both nuclei and cytoplasm of trophoblast cells in the labyrinth region. Possible roles of MT in the transport of zinc and in the carbohydrate metabolism are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00508314
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