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  • 1980-1984  (4)
  • 1975-1979
  • 1965-1969
  • 1980  (4)
Material
Years
  • 1980-1984  (4)
  • 1975-1979
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 102 (1980), S. 7441-7444 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 18 (1980), S. 501-505 
    ISSN: 1432-0428
    Keywords: Diabetes ; glomerulus ; hypertrophy ; kidney ; morphometry ; nephrectomy ; proximal tubule ; rats ; stereology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Renal hypertrophy in rats with streptozotocin diabetes or after unilateral nephrectomy was studied by sterological techniques. — After 4 days of diabetes total glomerular volume had increased by 30%, and after 47 days by 43%. Glomerular growth was more pronounced than whole kidney growth during the first 4 days, but subsequently whole kidney growth exceeded glomerular growth. In control rats glomerular volume was 4.9% of total kidney volume; after 4 days of diabetes it was 5.4% and after 47 days 4.1%. — Proximal tubule length increased from 366 m/kidney in control rats to 447 m/kidney after 47 days of diabetes; tubular luminal diameter increased from 26.8 μm to 31.4 μm in the same rats. Tubular length and luminal diameter were, however, not increased after 4 days of diabetes. — In unilaterally nephrectomised rats there was no early rapid glomerular growth. Glomerular fractional volume was 4.9% in controls, 4.4% at four days, and 4.2% at 24 days after nephrectomy. — The results indicate a disturbed glomerulo-tubular balance in the early phases of diabetic renal hypertrophy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 295 (1980), S. 65-72 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The energy and angular distributions ofp, d, t,3He and4He from the three targets Cu, Ag and Au were measured at five different angles for bremsstrahlung with peak energy 500MeV. The measurements were made using a telescope consisting of four surface-barrier detectors. The experimental data are compared with cascade-evaporation calculations. For the4He-distributions the calculations were extended to include the contribution from knock-out of surface alphas by the cascade nucleons. The comparison shows that the main contribution comes from evaporation but that there is a direct component of the order of 10%.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 207 (1980), S. 307-320 
    ISSN: 1432-0878
    Keywords: Insect sensilla ; Fine structure ; Odonata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Die vier Porensensillen des Maxillarpalpus von Agrion and Ischnura besitzen zwei (Sensillum Typ A), beziehungsweise fünf (Sensillum Typ B) bipolare Rezeptorzellen. Distal werden ihre Dendriten von der Dendritenscheide und dem Porusrohr umschlossen. Die Dendriteninnenglieder inserieren seitlich an den Perikarya. Die Rezeptorzellen jedes Sensillums sind von drei Hüllzellen und drei voneinander getrennten Rezeptorlymphräumen umschlossen. Rezeptorlymphraum l und 3 haben durch das Porusrohr, beziehungsweise durch das Porenkanalsystem der Cuticula Verbindung nach außen. Alle drei Hüllzellen zeigen apikal mikrovillusartige Membranstrukturen; außerdem besitzen sie je zwei Centriolen in Tandemstellung. Die Feinstruktur der Porensensillen wird mit der ähnlicher Arthropodensensillen verglichen. Funktionelle und phylogenetische Aspekte werden diskutiert.
    Notes: Summary The four single-pore sensilla on the maxillary palp of Agrion and Ischnura possess two bipolar sensory cells for A-sensilla and five for B-sensilla. Distally, their dendrites are enclosed by a dendritic sheath and a pore tube. The dendritic tips have access to the outside via the opening of the pore tube. The inner dendritic segments join the receptor cell bodies laterally. The receptor cells of each sensillum are enveloped by three sheath cells and three receptor lymph cavities. Receptor lymph cavity 1 and 3 are connected with the outside by the pore tube and a minute canal system in the cuticle, respectively. All three sheath cells show microvilluslike processes of the apical membrane. Moreover, all sheath cells contain two centrioles in tandem arrangement. The structure of the single-pore sensilla is compared with that of similar sensilla of other arthropods. Functional and phylogenetic aspects are discussed.
    Type of Medium: Electronic Resource
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