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  • 1985-1989  (2)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 33 (1986), S. 142-148 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Resume Le nombre de chromosomes et le caryotype de deux espèces de guêpes du genrePolistes ont été déterminés. Il a été développé une technique comprenant le traitement préalable à la colchicine et au citrate de sodium, lequel permet une identification plus précise des chromosomes. Les espècesPolistes (Aphanilopterus) simillimus avec n=28, 2n=56 chromosomes etPolistes (Aphanilopterus) versicolor versicolor avec n=31, 2n=62 chromosomes ont montré des caryotypes bien caractéristiques.
    Notes: Summary The chromosome number and karyotype of two wasp species of the genusPolistes were determined by a technique involving colchicine and sodium citrate pre-treatment, which permitted a more precise chromosome identification. The speciesPolistes (Aphanilopterus) simillimus, with n=28, 2n=56 chromosomes, andPolistes (Aphanilopterus) versicolor versicolor, with n=31, 2n=62 chromosomes, showed sharply characteristic individual karyotypes.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 857-859 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new method combining Li0-beam probing and spectroscopic techniques has been developed to measure local magnetic fields in a bumpy torus. A collimated thermal Li0 beam is injected into the plasma. The Zeeman pattern of the lithium resonance radiation (22S–22P, 6708 A(ring)) is observed with a Fabry–Perot interferometer. The strength of the local magnetic field is determined from the splitting between two π components of the 22S1/2–22P1/2 transition with the spatial resolution of about 7 mm. The magnetic fields from 2 to 4 kG were measured with accuracy of ±2%. This method is applicable to plasmas of a line-integrated electron density below 5×1012 cm−2.
    Type of Medium: Electronic Resource
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