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  • 1990-1994  (1)
  • 1965-1969  (1)
  • 25.40.Sc  (1)
  • Antigene  (1)
  • 1
    ISSN: 1434-601X
    Keywords: 25.40.Sc ; 25.70.Np
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have studied the fragmentation of Au projectiles interacting with targets of C, Al and Cu at an incident energy ofE/A=600 MeV. The employed inverse kinematics allowed a nearly complete detection of projectile fragments with chargeZ≧2. The recorded fragmentation events were sorted according to three observables, the multiplicityM lp of light charged particles, the largest atomic numberZ max within an event, and a new observable,Z bound, representing the sum of the atomic numbersZ of all fragments withZ≧2. Using these observables, the impact parameter dependence of the fragmentation process was investigated. For all three targets, a maximum mean multiplicity of 3 to 4 intermediate mass fragments (IMFs) is observed. The corresponding impact parameters range from central collisions for theC target to increasingly peripheral collisions for the heavier targets. It is found that the correlation between the IMF multiplicity andZ bound, extending from evaporation type processes (largeZ bound) to the total disassembly of the projectile (smallZ bound), is independent of the target nucleus. This universal behaviour may suggest an — at least partial — equilibration of the projectile fragment prior to its decay.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Clinical and experimental medicine 147 (1968), S. 236-245 
    ISSN: 1591-9528
    Keywords: Parathyroid gland ; Parathormone ; Antibodies ; Antigens ; Nebenschilddrüse ; Parathormon ; Antikörper ; Antigene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach Sensibilisierung von Kaninchen mit Parathyreoideaextrakt vom Rind waren Antikörper nachweisbar, die speciesspezifisch, jedoch nur zum Teil organspezifisch reagierten. Die organunspezifischen Antikörper richteten sich gegen Bindegewebsantigene in verschiedenen Organen, die organspezifischen gegen Antigene im Cytoplasma der Parenchymzellen der Nebenschilddrüsen. Nach Vergleichsuntersuchungen mit einem Parathormonantiserum sind diese jedoch nicht mit dem Parathormon identisch. Parathormon war immunhistologisch nur in einzelnen Zellen bzw. Zellgruppen der morphologisch identischen Parenchymzellen der Rinderparathyreoidea zu vermuten, was auf Unterschiede im Funktionszustand dieser Zellen zurückgeführt werden kann. Der Nachweis organspezifischer Antikörper läßt das Vorkommen einer Immunparathyreoiditis als möglich erscheinen, jedoch ist der exakte Beweis für eine solche Erkrankung bisher noch nicht erbracht.
    Notes: Summary In the serum of rabbits immunized with an extract of bovine parathyroid glands species-specific antibodies were detectable. Part of them reacted with antigens in the connective tissue of parathyroid glands and other bovine organs, while an organ-specific part of the antibodies was directed against antigens in the cytoplasm of parathyroid cells. Further experiments with a rabbit antiserum to bovine parathormone proved that these organ-specific antigens are only partially identical with parathormone. Histochemical techniques showed that parathormone is detectable only in single cells or in groups of cells of the morphologically identical epithelioid cells of bovine parathyroid glands. The fact that organ-specific antigens have been found in parathyroid glands suggests the existence of an “immune parathyroiditis” although this disease has not yet been exactly proved.
    Type of Medium: Electronic Resource
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