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  • Fastigial neurons  (1)
  • Polymer and Materials Science  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Direction-selective saccadic-burst neurons in the fastigial oculomotor region of the macaque (1990)
    Springer
    Experimental brain research 81 (1990), S. 659-662 
    Details
    ISSN: 1432-1106
    Keywords: Fastigial neurons ; Saccadic eye movements ; Saccadic burst units ; Vermal microstimulation ; Macaque
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Discharges of 68 neurons, recorded from the oculomotor region of the fastigial nucleus (FN) of the macaque, were characterized by a burst which started approximately 20 msec prior to the onset of a saccade in a direction contralateral to the recording site. These fastigial neurons also paused before saccades in their nonpreferred direction and then discharged with a subsequent burst. All units were spontaneously active but the tonic level of activity did not reflect eye position. They aggregated within the oculomotor region and the firing of 57 units (83.8%) was suppressed by stimulation of vermal lobule VII. Tonic discharges of six other units were closely related to eye position and located rostral to the burst units. Discharges of 16 units increased during the ipsilateral phase of sinusoidal head rotation and those of 50 units increased during contralateral head rotation. These neurons did not show saccade-related activity. They were widely scattered in the rostral and central portions of the FN. None of these units was inhibited by stimulation of vermal lobule VII.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02423517
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  • 2
    Electronic Resource
    Electronic Resource
    Curing behavior of epoxy resin having hydroxymethyl group and different molecular weight distribution (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 44 (1992), S. 1543-1546 
    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
    Notes: o-Cresol novolac-type epoxy resins having hydroxymethyl group were synthesized. These epoxy resins were cured with a mixture of 4,4′-diaminodiphenylmethane and m-phenylenediamine (molar ratio, 6:4) as a hardener. Effects of molecular weight distribution of epoxy resins on curing behavior were studied. Curing behavior of epoxy resins with hardener were examined by differential scanning calorimetery (DSC), and cure reaction parameters were obtained. Viscoelastic properties of the cured epoxy resins were studied by dynamic mechanical analyzer. It was found that the lower the average molecular weight of the epoxy resin, that is, the higher the concentration of hydroxymethyl group, the shorter the onset time of exothermal reaction, the higher the rate constant (k), and the lower the activation energy (Ea) were. It was also found that glass transition temperature (Tg) of fully cured epoxy resins was higher than those of fully cured general novolac-type epoxy resins.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1992.070440906
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    Paper (German National Licenses)
    Fulltext
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