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  • 11
    Digitale Medien
    Digitale Medien
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 74 (1999), S. 1206-1208 
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: We demonstrated the fabrication of a 200 nm×2 mm array of organic light-emitting diodes (OLEDs) on a glass substrate. The photolithographic technique using an optical phase shift mask allowed us to construct a super-fine resolution patterning of OLEDs. A single organic electroluminescent (EL) layer composed of an inert poly(methylmethacrylate) polymer binder and tetraphenylbendidine and tris(8-quinolinol) aluminum molecules was fabricated on a fine-resolution photoresist patterning by a spin coating method. The lines and spaces of the photoresist patterning were 200 nm. The emitting area was well confined by the regular array of residual photoresist resin walls. Finally, a MgAg cathode layer was uniformly deposited on the organic layer. We observed anisotropic EL spectra between the directions perpendicular and parallel to the patterning of OLED arrays. Furthermore, we observed a large difference of EL intensities between them. We assume that the anisotropic EL characteristics are caused by the confinement effect of photons inside the submicrometer-sized OLED array. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 12
    Digitale Medien
    Digitale Medien
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 2240-2244 
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Fluorescence spectra and rise as well as decay curves of 1-ethylpyrene (EPy) in poly(methyl methacrylate) films changed using a XeCl (308-nm) excimer laser as an ablation source. This phenomenon was observed not only for the ablated area but also for the masked region of about 20 μm around the ablated area and was attributed to the change of the dispersion condition of EPy. Effects of laser ablation upon properties of polymer films were elucidated by analyzing fluorescence dynamics using a microscope and under a total internal reflection condition.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 13
    ISSN: 1438-8359
    Schlagwort(e): Intestinal obstruction ; Epidural block ; Neostigmine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Seventy patients with intestinal obstruction were managed with usual conservative treatments and epidural anesthesia to block splanchnic and somatic nervous systems, for nine years from 1981 to 1990. Improvement of clinical symptoms and general conditions was accomplished in 48 patients (68.6%). In these 48 patients, 41 patients (58.6%) had complete remission of intestinal obstruction, showing flatus in 8.3 hours on an average, but seven (10.0%) had incomplete remission. For these seven, after improvements of their clinical symptoms, elective radical operations were performed within three weeks. In 22 (31.4%) patients whose symptoms were not improved at all with the epidural block, emergency exploratory celiotomies were performed, 15.4 hours on an average after the initial epidural block. Indications for surgical intervention of intestinal obstruction were decided by the absent movement of gas in the bowel in a series of plain X-rays. The effectiveness of the epidural block on the motility of the obstructed intestinal loop was experimentally confirmed in monkeys. We suggested that the epidural block, accompanied with usual conservative treatments, be recommended as the initial treatment for intestinal obstruction. (Nomoto Y, Hirose T, Harano K, et al.: Epidural block for treatment of intestinal obstruction—clinical and experimental studies—. J Anesth 7: 267–275, 1993)
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 14
    ISSN: 1573-2592
    Schlagwort(e): T cells forming autorosettes ; T cells not forming autorosettes ; suppressor effect ; amplifier effect ; neuraminidase
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract When human T cells were treated with neuraminidase fromVibrio cholerae, the capacity of T cells to form rosettes with autologous erythrocytes was markedly enhanced. The neuraminidase-treated T cells were separated with autologous erythrocytes into autorosetting and nonrosetting cell populations, and these two populations examined for their reactivity to mitogens and B cells and for their regulatory activities. Autorosetting T cells proliferated poorly in response to mitogens and autologous and allogeneic B cells; these cells were particularly enriched for cells capable of becoming concanavalin A-induced suppressor cells. Nonrosetting T cells capable of most actively proliferating in response to the mitogens and the B cells failed to exhibit such suppressor function after concanavalin A activation. Coculture experiments between autorosetting and nonrosetting cells further demonstrated that the nonrosetting T cells were able to potentiate the proliferation of the autorosetting T cells with concomitant expression of the suppressor properties.
    Materialart: Digitale Medien
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  • 15
    Digitale Medien
    Digitale Medien
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 19 (1975), S. 2743-2748 
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Differential scanning calorimetric melting endotherms of wet and half-dried cellulose acetate membranes and salt distribution coefficients were studied to clarify the states of water in membranes. We have suggested that (a) there are four states of water in cellulose acetate membranes; (b) these states of water are those of completely free water, free water very weakly interacting with polymer, bound water which can contain salts, and bound water which rejects salts; (c) the semipermeability of membranes depends on the ratio of four states of water in membranes.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 16
    Digitale Medien
    Digitale Medien
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 27 (1982), S. 1087-1090 
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 17
    Digitale Medien
    Digitale Medien
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 21 (1977), S. 343-351 
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The behavior of ions in a cellulose acetate membrane was discussed from the standpoint of mobilities obtained from the membrane potentials. The mobilities of univalent ions larger in radius or divalent ions relative to Na+ ion mobility in the membrane are much different from those in aqueous solutions. The order of the mobilities of ions in the membrane is shown quantitatively. The mobilities of the ions with radii larger than a certain value in the membrane decrease with increase in their size. This could be explained by the physical friction between the ion and the membrane wall. This friction is of importance as the ionic radius comes close to the intermolecular gaps between polymer chains. The mobilities of Na+ anyd 1- ions in the membrane are (2-3) × 10-7 cm2/sec-V and are about three to four orders of magnitude less than those in aqueous solutions.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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