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  • 1
    Digitale Medien
    Digitale Medien
    NOS-like immunoreactive neurons express GABA-like immunoreactivity in rabbit and rat retinae (1998)
    Springer
    Experimental brain research 120 (1998), S. 109-113 
    Details
    ISSN: 1432-1106
    Schlagwort(e): Key words Nitric oxide synthase ; GABA ; Retina ; Rabbit ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract  In rabbit and rat retinae, wholemounted preparations and 40 μm thick vibratome sections were processed for nitric oxide synthase (NOS) immunoreactivity and consecutive semithin sections were immunostained with anti-NOS and anti-GABA antisera, respectively. Two types of NOS-labelled amacrine cells were identified: type 1 cells with larger somata were intensely stained, and type 2 cells with smaller somata were weakly stained. A few displaced amacrine cells also showed NOS-like immunoreactivity. All these NOS-like immunoreactive neurons also expressed GABA-like immunoreactivity. Thus, nitric-oxide-containing neurons might constitute a subpopulation of GABAergic neurons in rabbit and rat retinae.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002210050383
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  • 2
    Digitale Medien
    Digitale Medien
    Comparison of sympathetic sprouting in sensory ganglia in three animal models of neuropathic pain (1998)
    Springer
    Experimental brain research 120 (1998), S. 432-438 
    Details
    ISSN: 1432-1106
    Schlagwort(e): Key words Causalgia ; Hyperalgesia ; Mechanical allodynia ; Peripheral nerve injury ; Sympathetically maintained pain ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract  Sympathetic postganglionic fibers sprout in the dorsal root ganglion (DRG) after peripheral nerve injury. Therefore, one possible contributing factor of sympathetic dependency of neuropathic pain is the extent of sympathetic sprouting in the DRG after peripheral nerve injury. The present study compared the extent of sympathetic sprouting in the DRG as well as in the injured peripheral nerve in three rat neuropathic pain models: (1) the chronic constriction injury model (CCI); (2) the partial sciatic nerve ligation injury model (PSI); and (3) the segmental spinal nerve ligation injury model (SSI). All three methods of peripheral nerve injury produced behavioral signs of ongoing and evoked pain with some differences in the magnitude of each pain component. The density of sympathetic fibers in the DRG was significantly higher at all examined postoperative times than controls in the SSI model, while it was somewhat higher than controls only at the last examined postoperative time (20 weeks) in the CCI and PSI models. Therefore, data suggest that, although sympathetic changes in the DRG may contribute to neuropathic pain syndromes in the SSI model, other mechanisms seem to be more important in the CCI and PSI models at early times following peripheral nerve injury.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002210050416
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  • 3
    Digitale Medien
    Digitale Medien
    Reaction of Müller cells after increased intraocular pressure in the rat retina (1998)
    Springer
    Experimental brain research 121 (1998), S. 419-424 
    Details
    ISSN: 1432-1106
    Schlagwort(e): Key words Glial fibrillary acidic protein ; Müller cell ; Increased intraocular pressure ; Retina ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract  Using light microscopy and immunocytochemistry, we investigated the morphological changes of retinal tissues and the reaction of Müller cells in the ischemic rat retina induced by increasing intraocular pressure. At early stages (from 1 h to 24 h after reperfusion), cells in the ganglion cell layer and in the inner nuclear layer showed some degenerative changes, but at later stages (from 72 h to 4 weeks) marked degenerative changes occurred in the outer nuclear layer (ONL). At 4 weeks after reperfusion, the ONL was reduced to 1 or 2 cell layers. Immunoreactivity for glial fibrillary acidic protein (GFAP) appeared in the endfeet and distal processes of Müller cells as of 1 h after reperfusion. GFAP immunoreactivity in Müller cells increased up to 2 weeks and then decreased at 4 weeks after reperfusion. Our findings suggest that Müller cells are involved in the pathophysiology of retinal ischemia through the expression of GFAP. The degree of GFAP expression in Müller cells closely correlated with that of the degeneration of retinal neurons.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002210050476
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  • 4
    Digitale Medien
    Digitale Medien
    Crystallization during polymerization of phenylcarbene and 1,4-phenylenedicarbene (1978)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 179 (1978), S. 561-565 
    Details
    ISSN: 0025-116X
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/macp.1978.021790235
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  • 5
    Digitale Medien
    Digitale Medien
    The effects of surfactants on the motion and transport mechanisms of a condensing droplet in a high reynolds number flow (1985)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 31 (1985), S. 1149-1156 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The motion and transport mechanisms of a condensing droplet initially contaminated with insoluble monolayer surfactant material are examined through a theoretical approach. The surface tension gradient force induced by the surfactant and the shear stress from the relative motion between droplet and its ambient vapor are evaluated on the droplet surface as major forces affecting the internal motion of the droplet. The strength of the internal motion ranges from one order of magnitude smaller than the free stream velocity for slight surfactant contamination to almost a complete stop in motion for high surfactant concentration.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690310713
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  • 6
    Digitale Medien
    Digitale Medien
    Simulation of particle dispersion in a two-dimensional mixing layer (1988)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 34 (1988), S. 946-954 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Particle dispersion in a two-dimensional mixing layer is analyzed numerically by calculating the particle trajectories in a free shear layer simulated by discrete vortices. Important global and local flow quantities reported in experimental measurements are reasonably simulated.The particle dispersion results demonstrate that the extent of particle dispersion depends strongly on the Stokes number St, the ratio of particle aerodynamic response time to the characteristic time of the mixing layer flow. Particles with relatively small St values are dispersed at approximately the fluid dispersion rate. Particles with large St values are dispersed at a rate that is less than the fluid rate. Particles with intermediate values of St may get flung outside of the vortex structures in the mixing layer and therefore get dispersed at a higher rate than the fluid. This result is in agreement with some previous experiments in plane and axisymmetric jets. It is also found that a higher dispersion rate is associated with the particles introduced to the flow from the low-speed side and from near the middle of the mixing layer.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690340607
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  • 7
    Digitale Medien
    Digitale Medien
    Laminar condensation heat and mass transfer to a moving drop (1981)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 27 (1981), S. 372-377 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: This paper presents numerical solutions to the nonlinear, coupled boundary-layer equations governing laminar condensation heat and mass transfer in the vicinity of the forward stagnation point of a spherical cold water droplet translating in a saturated mixture of three components. The environment surrounding the droplet is composed of a condensable (steam), a noncondensable and nonabsorbable (air), and a third component which is noncondensable but absorbable (Elemental Iodine, for example). The dispersed and the continuous phases have been treated simultaneously. Results obtained here show excellent agreement with experimental results where available. An important conclusion is that for laminar condensation on a freely falling droplet, for a given thermal driving force and noncondensable gas concentration in the bulk, the dimensionless heat transfer decreases with increasing saturation temperature of the outside medium.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690270306
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  • 8
    Digitale Medien
    Digitale Medien
    Correlations of elastic modulus, cohesive energy density and heat capacity jump of glassy polymers (1987)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 27 (1987), S. 1015-1017 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The elastic modulus of glassy polymers can be calculated from a measurable thermal property of polymers. The correlation of heat capacity jump data with molar modulus of 13 polymers indicated that the calculation of molar modulus from heat capacity jump energy for other glassy polymers is possible.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760271314
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