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  • Chemistry  (6)
  • Cytodifferentiation  (2)
  • Finger arterial pressure  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Interrelation between the spatial disposition of actin filaments and microtubules during the differentiation of tracheary elements in culturedZinnia cells (1988)
    Springer
    Protoplasma 143 (1988), S. 29-37 
    Details
    ISSN: 1615-6102
    Keywords: Actin filament ; Microtubule ; Cytodifferentiation ; Mesophyll cell ; Tracheary element ; Zinnia elegans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Changes in the spatial relationship between actin filaments and microtubules during the differentiation of tracheary elements (TEs) was investigated by a double staining technique in isolatedZinnia mesophyll cells. Before thickening of the secondary wall began to occur, the actin filaments and microtubules were oriented parallel to the long axis of the cell. Reticulate bundles of microtubules and aggregates of actin filaments emerged beneath the plasma membrane almost simultaneously, immediately before the start of the deposition of the secondary wall. The aggregates of actin filaments were observed exclusively between the microtubule bundles. Subsequently, the aggregates of actin filaments extended preferentially in the direction transverse to the long axis of the cell, and the arrays of bundles of microtubules which were still present between the aggregates of actin filaments became transversely aligned. The deposition of the secondary walls then took place along the transversely aligned bundles of microtubules. Disruption of actin filaments by cytochalasin B produced TEs with longitudinal bands of secondary wall, along which bundles of microtubules were seen, while TEs produced in the absence of cytochalasin B had transverse bands of secondary wall. These results indicate that actin filaments play an important role in the change in the orientation of arrays of microtubules from longitudinal to transverse. Disruption of microtubules by colchicine resulted in dispersal of the regularly arranged aggregates of actin filaments, but did not inhibit the formation of the aggregates itself, suggesting that microtubules are involved in maintaining the arrangement of actin filaments but are not involved in inducing the formation of the regularly arranged aggregates of actin filaments. These findings demonstrate that actin filaments cooperate with microtubules in controlling the site of deposition of the secondary wall in developing TEs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282956
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  • 2
    Electronic Resource
    Electronic Resource
    Reorganization of actin filaments associated with the differentiation of tracheary elements inZinnia mesophyll cells (1987)
    Springer
    Protoplasma 138 (1987), S. 69-71 
    Details
    ISSN: 1615-6102
    Keywords: Actin filament ; Cytodifferentiation ; Mesophyll cells ; Tracheary element ; Zinnia elegans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281188
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Idea to measure diastolic arterial pressure by volume oscillometric method in human fingers (1986)
    Springer
    Medical & biological engineering & computing 24 (1986), S. 549-554 
    Details
    ISSN: 1741-0444
    Keywords: Finger arterial pressure ; Indirect diastolic pressure ; Photoelectric plethysmography ; Volume oscillometric method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443975
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  • 4
    Electronic Resource
    Electronic Resource
    Vibration technique for indirect measurement of diastolic arterial pressure in human fingers (1989)
    Springer
    Medical & biological engineering & computing 27 (1989), S. 130-136 
    Details
    ISSN: 1741-0444
    Keywords: Diastolic pressure ; Finger arterial pressure ; Indirect sphygmomanometry ; Photoelectric plethysmography ; Pressure/volume relation ; Vibration method ; Volume oscillometric method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Diastolic pressure Pd was indirectly measured by vibrating a finger artery with a 10 Hz sinusoidal pressure variation during a gradual increase (or decrease) in occlusive cuff pressure Pc. Pulsatile arterial volume changes on which sinusoidal variations are superimposed were detected by a transmitted infra-red photoelectric plethysmograph (TIPP). It is known that volume change in an artery shows a maximum amplitude at the transmural pressure Pt level equal to 0 mm Hg due to the nonlinear viscoelastic properties of the arterial wall. For the same reason, the amplitude of the sinusoidal volume variation reached its maximum at the end-diastolic phase, when Pc was controlled to be exactly equal to Pd. The indirect Pd values determined from Pc were compared with those simultaneously measured by a direct method in rabbit forelegs and by the volume-compensation method in human fingers. Using the principle of the volume oscillometric method systolic and mean pressures were also determined by this system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446221
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  • 5
    Electronic Resource
    Electronic Resource
    New BETS salts based on magnetic (CuCl3, FeCl4) and non-magnetic (GaCl4) anions (1997)
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 7 (1997), S. 57-60 
    Details
    ISSN: 1057-9257
    Keywords: BETS ; salt ; synthesis ; structure ; conductivity ; magnetoresistance oscillations ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: New BETS salts (where BETS is bis(ethylenedithio)tetraselenafulvalene) with (CuCl3)x, Cu2C6, Cu4Cl8 and Fe0.75Ga0.25Cl4 anions have been obtained. The crystal structures and electrical and magnetoresistance properties of Κ-BETS4Cu4Cl8, θ-BETS4Cu2Cl6 and Κ-BETS2Fe0.75Ga0.25Cl4 have been studied. The last two compounds have been found to exhibit Shubnikov-de Haas and angle-dependent magnetoresistance oscillations. © 1997 John Wiley & Sons, Ltd.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    The effects of substrate surface roughness on the morphology of plasma-polymerized ethylene (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 18 (1974), S. 2199-2203 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1974.070180725
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  • 7
    Electronic Resource
    Electronic Resource
    Application of glow discharge optical emission spectroscopy to diffusion measurement of copper in ferritic and austenitic iron and steels (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 19 (1992), S. 638-642 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Glow discharge optical emission spectroscopy (GDOS) is a method to analyse the optical emission of elements during sputtering of a solid, providing data on the light intensities of the elements vs. the sputtering time. By correcting the measured light intensities with standard samples, it is possible to obtain the quantitative depth profile up to about 100 μm. In the present research, GDOS was applied to the diffusion measurement of impurity atoms in metals and alloys. After a thin film of copper was coated on iron and steels, the surface film was diffused into the matrix at high temperatures. The penetration curves of copper from the surface were obtained from the GDOS data. Diffusivities of copper in ferritic and austenitic regions of iron were determined from the penetration curves, which were in agreement with previous results. Diffusion of copper in commercial ferritic and austenitic stainless steels was also examined. The diffusivities obtained were comparable with those expected from the temperature dependence of the diffusivities in the ferritic and austenitic phases of pure iron.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.7401901119
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  • 8
    Electronic Resource
    Electronic Resource
    Ring-opening polymerization of glycolide (1967)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 100 (1967), S. 262-266 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1967.021000128
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  • 9
    Electronic Resource
    Electronic Resource
    Physical and chemical characteristics polyglycolide. (1967)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 100 (1967), S. 267-270 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1967.021000129
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  • 10
    Electronic Resource
    Electronic Resource
    Processing morphology of PVC/MBS blend (1993)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 15 (1993), S. 51-56 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: MBS resin, an impact modifier for PVC, plays an important role in PVC processing, the details of which, however, are not well understood. The use of a temperature programmable Brabender Plasticorder and new microscopic techniques have revealed that MBS inhibits the comminution of PVC grain in the initial stage of processing, and PVC breakdown occurs after the MBS melts. Dynamic melting of MBS is observed as a Brabender torque peak. These characteristics of PVC/MBS blends are quite different from those of PVC/processing aid blends. Processing features of PVC/MBS blends are reported and compared with those of PVC/processing aid blends.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730150204
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