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  • 1
    Digitale Medien
    Digitale Medien
    Cytotoxic potential of lymphocytes stimulated with autochthonous lymphoid cell line cells (1971)
    Springer
    Cellular and molecular life sciences 27 (1971), S. 1336-1338 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Résumé Les petits lymphocytes du sang, après avoir été mis en contact pendant plusieurs jours avec les cellules lymphoïdes d'une lignée autochthone, peuvent tuer les cellules de cette lignée et d'autres lignées. Ces investigations peuvent apporter de nouvelles données sur l'opération de contrôle immunologique.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02136724
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    A note on a paper of Srinivasan (1970)
    Springer
    Mathematische Annalen 186 (1970), S. 34-35 
    Details
    ISSN: 1432-1807
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01350638
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Interaction between peripheral blood leucocytes and X-irradiated cells from lymphoid cell lines (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 404-406 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Résumé Une interaction stimulante très marquée s'observe dans les cultures de lymphocytes frais du sang humain merlées à des cellules lymphoïdes de plusieurs lignées continues exposées aux rayons X.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01899949
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    The destruction of lymphoma cells by activated human lymphocytes (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 1136-1138 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Résumé Les lymphocytes frais du sang humain, après culture avec des cellules lymphoÏdes de lignées continues exposées aux rayons X, peuvent tuer ces cellules ou celles d'une autre lignée lymphoÏde. Les lymphocytes humains stimulés par culture avec la phytohaemagglutinine n'ont pas cet effet.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02112722
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Analysis of the peptide carrier in the scutellum of barley embryos by photoaffinity labelling (1991)
    Springer
    Planta 186 (1991), S. 44-51 
    Details
    ISSN: 1432-2048
    Schlagwort(e): Embryo (peptide carrier) ; Hordeum (embryo, peptide transport) ; Peptide transport ; Photoaffinity probe
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The preparation of a phenylalanine analogue containing an azido group and its incorporation into dipeptides is described. Peptides modified in this way are taken up into barley (Hordeum vulgare L.) scutella via the previously characterized peptide-transport system. Photoactivation of modified peptides in the presence of isolated scutella resulted in irreversible inhibition of peptide uptake in a concentration-dependent manner. Transport of other solutes which share a common mechanism of energy coupling, but which are transported via distinct carriers, was not inhibited after photo-derivatization of scutella with the modified peptides. Derivatization of isolated scutellar tissue with a 14C-labelled peptide analogue, resulted in incorporation of label into two proteins of Mr = 54000 and 41000. Scutellar tissue from early-germinating seeds, which do not show active peptide uptake, did not incorporate label into these polypeptides. It is concluded that these proteins are components of the barley peptide-transport system.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00201496
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    The Taconite Inlet Lakes Project: a systems approach to paleoclimatic reconstruction (1996)
    Springer
    Journal of paleolimnology 16 (1996), S. 97-110 
    Details
    ISSN: 1573-0417
    Schlagwort(e): paleoclimatic ; meromictic ; varves ; arctic ; drainage basin characteristics ; lacustrine sedimentation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Geologie und Paläontologie
    Notizen: Abstract A comprehensive study of meteorological, hydrological, limnological and sedimentological conditions in the watersheds of density-stratified (meromictic) lakes around Taconite Inlet, Northern Ellesmere Island, N.W.T., Canada was carried out from 1990–1992. Lakes C1 and C2 contain seawater ‘trapped’ by isostatic uplift as the former embayments became isolated from the sea. These lakes, and Lake C3, contain varved sediments which provide an annually resolvable paleoclimatic record. By studing the major systems influencing sedimentation in one of these lakes (Lake C2) a better understanding of the climatic controls on varve formation, and hence on the paleoclimatic signal in the varved sediment record, was obtained. The varves of Lake C2 provide a proxy record of summer temperature for the region.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00176930
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    High latitude electrodynamics: Observations from S3-2 (1984)
    Springer
    Space science reviews 37 (1984), S. 161-200 
    Details
    ISSN: 1572-9672
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The high spatial-temporal resolution of instrumentation on the polar-orbiting S3-2 satellite has allowed a wide variety of measurements of the electrodynamic characteristics of both large- and small-scale structures at high latitudes. Analyses of large scale features observed by S3-2 have shown that: (i) The IMF B ydependence of polar cap convection, first observed in June 1969 by OGO-6 persists in other seasons. During periods of northward IMF B zextensive regions of sunward convection may be found in the sunlit polar cap. (ii) In the dawn and dusk MLT sectors 〉90% of the region 1 currents lie equatorward of the convection reversal line. Potentials across the ionospheric projection of the low-latitude boundary layer are typically a few kV. (iii) The location of ‘extra’ field-aligned currents, near the dayside cusp and poleward of the region 1 current sheet is dependent on the IMF B ycomponent. (iv) Simultaneous observations by TRIAD and S3-2 show that sheets of field-aligned current extend uniformly for several hours in MLT, but may have an altitude dependence in the 1000–8000 km range. (v) During magnetic storms ionospheric irregularities occur in regions of poleward density gradients and downward field-aligned currents near the equatorward boundary of diffuse auroral precipitation. In the winter polar cap, density irregularities were also found in regions of highly structured electric fields and soft electron precipitation. (vi) During an intense magnetic storm the auroral zone height-integrated Pederson conductivity was calculated to be in the range 10–30 mho and downcoming energetic electron fluxes accounted for between 50% and 70% of the upward Birkeland currents. Analysis of small-scale structures (latitudinal width 〈 1°), observed by S3-2, have shown that: (i) Intense meridional electric fields (50–250 mV m-1) generated by charge separation near the inner edge of the plasma sheet drive intense subauroral convection and are associated with field-aligned currents, on the order of 1–2 μA m-2. (ii) Case studies of discrete arcs in the auroral oval have shown that arcs are associated with pairs of small-scale, field-aligned currents embedded in the large-scale region 1/region 2 field-aligned current sheets. The maximum observed field-aligned current was an upward current of 135 μA m-2, confined to a latitudinal width of ∼ 2km and carried by field-aligned accelerated electrons. Return (downward) currents associated with arcs are limited to intensities of 10–15 μA m-2. At this limit the ionospheric plasma becomes marginally stable to the onset of ion-cyclotron turbulence. Two instances of plasma vortices, characteristic of auroral curls, have been observed in the region between the paired current sheets. (iii) Sun-aligned arcs in the polar cap are found in a region of negative electric field divergence, embedded in an irregular electric field pattern. The electrons producing the arcs have a temperature of ∼ 200 eV and have been accelerated through potential drops of ∼ 1 kV along the magnetic field. Return currents may appear on both sides of polar-cap arcs.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00213960
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Fracture toughness of partially-sintered brittle materials (1996)
    Springer
    Journal of materials science 15 (1996), S. 1167-1168 
    Details
    ISSN: 1573-4811
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00539970
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    facet.materialart.
    Unbekannt
    Cytotoxic potential of lymphocytes stimulated with autochthonous lymphoid cell line cells (1971)
    Springer
    Details
    Publikationsdatum: 1971-11-01
    Print ISSN: 0014-4754
    Thema: Biologie , Medizin
    Publiziert von Springer
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    facet.materialart.
    Unbekannt
    The destruction of lymphoma cells by activated human lymphocytes (1970)
    Springer
    Details
    Publikationsdatum: 1970-10-01
    Print ISSN: 0014-4754
    Thema: Biologie , Medizin
    Publiziert von Springer
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
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