ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Quadrupole structure in the rotational spectrum of the v8=1 and 2 and ground vibrational levels of CH3C14N for the frequency range 17–56 GHz (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 4725-4729 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rotational spectra in the ground and v8=1 and 2 vibrational states of methyl cyanide have been determined in the frequency range 17–56 GHz. Molecular constants for these vibrationally excited states have been determined from more than 30 observed rotational transitions. Experimentally measured frequencies are presented and compared with those calculated using the results of basic perturbation theory. Constants were obtained for the v8=1 level and these, along with the ground constants, used to generate constants for components of the v8=2 vibration. A model was developed for the quadrupole splitting for the ground and v8=1 levels. From these values spectral components were predicted and assigned for the higher vibration v8=2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452692
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The microwave spectrum of propyne in the 17 to 72 GHz region for the v9=2 vibrational state (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 6940-6944 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Some rotational components in the v9=2 vibrational state of propyne have been determined in the frequency range 17–72 GHz. Molecular constants for this vibrationally excited state have been determined from more than 11 observed rotational transitions. Experimentally measured frequencies are presented and compared with those calculated using the results of basic perturbation theory. A constant set was obtained for the v9=1 and v9=2 vibrationally excited levels using the experimental data obtained for the ground and these two vibrational levels. Agreement was found to be quite good for all except one component which may be perturbed by combination bands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451380
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The microwave spectrum of propyne in the 17–52 GHz region for the V10=3 vibrational state (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 1193-1195 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rotational spectra in the V10=3 vibrational state of propyne have been determined in the frequency range 17–52 GHz. Molecular constants for this vibrationally excited state have been determined from more than 13 observed rotational transitions. Agreement between experimentally measured frequencies and those calculated using the results of Bauer et al. was found to be good.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.450510
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    The microwave spectrum of propyne in the 17–70 GHz region for the V10=2 vibrational statef a@f ) (1985)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 82 (1985), S. 5-8 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rotational spectrum of the V10=2 vibrational state of propyne was investigated in the 17–70 GHz region with a total of 18 lines measured. Rotational constants for the V10=2 state have been derived. The rotational constants for the V10=2, V10=1, and ground vibrational states have been compared and the constants of anharmonicity describing the change of B with the level of excitation of the V10 vibrational mode have been derived. The constants derived in this manner are quite different from those calculated by Meyer and Sergent-Rozey based on infrared data. An explanation for this discrepancy is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.448736
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Influence of stoichiometry on the electrical activity of impurities in Hg(1−x)Cd(x)Te (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 6227-6233 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Elements from groups IB, IIIB, VB, and VIIB have been added to crystals of Hg(1−x)Cd(x)Te grown using the accelerated crucible rotation technique. Assessment on both as-grown and annealed (in Hg vapor) samples was carried out using Hall effect measurements to establish the electrical activity and stability of each dopant. Chemical analysis by atomic absorption spectroscopy and laser scan mass spectrometry determined the total levels of dopants in each crystal. The behavior of dopants in these crystals is compared to that found in Bridgman and epitaxial material and discussed in terms of the stoichiometry of melts and crystals at the growth temperature. It is concluded that group VB and VIIB elements are prevented from occupying Te sites when there is a high Hg vacancy concentration present during growth. Gold, which is inactive in Bridgman material, is found to be an active acceptor in a crystal grown using the accelerated crucible rotation technique. Group IB and IIIB elements are acceptors and donors, respectively, on metal sites irrespective of stoichiometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342079
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    The control of seed germination in Trollius ledebouri: The breaking of dormancy (1985)
    Springer
    Planta 166 (1985), S. 314-320 
    Details
    ISSN: 1432-2048
    Keywords: Dormancy (seed) ; Endosperm breakdown ; Germination (seed) ; Gibberellin and seed dormancy ; Trollius
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seeds of Trollius ledebouri exhibit low germination when maintained on moistened filter paper. Dormancy can be overcome by the application of gibberellins A4+A7 or by testa removal. Germination is characterised by a change in the anatomy of the seed and by specific alterations in the protein complement of the endosperm tissue. These anatomical and biochemical changes are also exhibited by isolated endosperm tissue maintained in the absence of the embryo. The observations described are discussed in relation to the interaction between the endosperm and the embryo in the control of seed germination in T. ledebouri.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401167
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The control of seed germination in Trollius ledebouri A model of seed dormancy (1985)
    Springer
    Planta 166 (1985), S. 321-328 
    Details
    ISSN: 1432-2048
    Keywords: Dormancy (seed) ; Endosperm breakdown ; Germination (seed) ; Gibberellin and seed dormancy ; Trollius
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Treatment of Trollius ledebouri seeds with gibberellins A4+A7 promotes germination. The efficacy of the treatment is dependent upon the duration of imbibition in distilled water prior to GA4+7 application. ‘Presoaking’ increases both the final percentage germination attained and also its rate of achievement. No presoaking effect is exhibited by seeds induced to germinate by testa removal in the absence of GA4+7. Active washing of Trollius seeds enhances the presoaking effect and the eluent from washed seeds is inhibitory to germination. The results support the hypothesis that the presoaking effect exhibited by Trollius is the result of the leaching of a germination inhibitor from the seeds which is antagonistic to GA4+7. Additionally, treatment of Trollius seeds with the gibberellin-biosynthesis inhibitor (2-chloroethyl)-trimethylammonium chloride (CCC) prior to testa removal retards germination. The inhibitory effect of CCC on germination is overcome by GA4+7. Although CCC inhibits embryo growth during the presoaking of intact seeds, it does not affect the increased sensitivity of presoaked seeds to GA4+7. Therefore, although endogenous gibberellins may be involved in the germination process, they do not contribute to the presoaking phenomenon. The expansion of isolated endosperm tissue is not affected by CCC. However, the chemical markedly inhibits endosperm expansion in intact seeds and implicates the embryo as both the site of production of the germination inhibitor and of gibberellin. These results are discussed in relation to previous studies and a model is presented to account for the characteristics of germination in Trollius.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401168
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    facet.materialart.
    Unknown
    Notes: The Negative Association Between Intelligence and Fertility (1941)
    Baltimore : Periodicals Archive Online (PAO)
    Human Biology. 13:3 (1941:Sept.) 410 
    Details
    ISSN: 0018-7143
    Topics: Biology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:5243-1941-013-03-000010
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    A Sex Difference in Blood-Group Frequencies (1943)
    [s.l.] : Nature Publishing Group
    Nature 151 (1943), S. 640-641 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two or three years ago, when comparatively large bodies of blood-group data were being examined by one of us (R.A.F.), it was noted that at an unexpectedly large number of centres in Yorkshire there were proportionately more women O's than men and more men A'a than women. Subsequent ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/151640a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    An ancient planetary nebula surrounding the old nova GK Persei (1987)
    [s.l.] : Nature Publishing Group
    Nature 329 (1987), S. 519-521 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] GK Persei underwent a classical nova outburst in 1901, reaching visual magnitude (V) of 0.2 on 22 February 1901. Subsequently, it declined at 0.23 mag per day, reaching a minimum typically of V = 13.1 (ref. 2). In contrast with other objects of this type, GK Per shows dwarf nova-like outbursts of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/329519a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...