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  • Springer  (67)
  • American Institute of Physics (AIP)
  • 1985-1989  (64)
  • 1955-1959  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Microwave Fourier-transform spectrometer for the entire K band for the investigation of rotational spectra of molecules in the gas phase (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 1759-1762 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We present the experimental set up of a microwave Fourier-transform spectrometer for the entire K band from 18 to 26.4 GHz. It is hereby shown that this type of spectroscopy is achieved above 18 GHz. Advantages and disadvantages are discussed. The performance is illustrated by the recordings of rotational transitions of various molecules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138090
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  • 2
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1985)
    Springer
    OR spectrum 7 (1985), S. 208-208 
    Details
    ISSN: 1436-6304
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01720171
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  • 3
    Electronic Resource
    Electronic Resource
    How small can a lattice of order-dimension n be? (1987)
    Springer
    Order 3 (1987), S. 345-353 
    Details
    ISSN: 1572-9273
    Keywords: 06A10 ; 06A23 ; Order-dimension ; Ferrers relation ; partition lattice ; linear lattice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The aim of this paper is to study the order-dimension of partition lattices and linear lattices. Our investigations were motivated by a question due to Bill Sands: For a lattice L, does dim L=n always imply |L|≥2 n ? We will answer this question in the negative since both classes of lattices mentioned above form counterexamples. In the case of the partition lattices, we will determine the dimension up to an absolute constant. For the linear lattice over GF(2), L n , we determine the dimension up to a factor C/n for an absolute constant C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00340776
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Frage der Ein- oder Mehrkernigkeit der Konidiosporen von Claviceps purpurea Tul. (Mutterkorn) (1957)
    Springer
    Naturwissenschaften 44 (1957), S. 95-95 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00629914
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  • 5
    Electronic Resource
    Electronic Resource
    Transformation of Penicillium chrysogenum by a vector containing a mitochondrial origin of replication (1987)
    Springer
    Applied microbiology and biotechnology 26 (1987), S. 237-241 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary In order to establish a transformation system for P. chrysogenum autonomously replicating vectors were constructed using mitochondrial DNA sequences from the fungus. A physical map of the mt DNA of a production strain was established using ten different restriction enzymes. Unexpectedly, the mt DNA of this strain proved to be significantly smaller than that of a second strain from a culture collection (27 kb versus 49 kb). Various fragments representing about 71% of the 27 kb mt DNA were cloned and, at first, preselected for replicating activity in an intermediate host (Saccharomyces cerevisiae). Two of these fragments also promoted autonomous replication in P. chrysogenum, which was confirmed by isolation of bulk DNA and transfer into E. coli. For selection of transformants in P. chrysogenum the prokaryotic kanamycin resistance gene was used which increased about twofold the resistance against G418.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00286316
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  • 6
    Electronic Resource
    Electronic Resource
    Life cycle, meiotic recombination and unilateral gene transfer in methanolotrophic yeasts of the genus Pichia (1987)
    Springer
    Applied microbiology and biotechnology 27 (1987), S. 265-271 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary In order to perform strain improvement of the methanol utilising yeasts Pichia pinus and Pichia lindneri their life cycles were elucidated. Both yeasts are monoecious and self-fertile. Karyogamy by autodiploidization is followed by meiosis leading to Mendelian segregation within the offspring. In Pichia pinus crosses via cell or protoplast fusion is feasible as proven by tetrad analysis. This is not the case in Pichia lindneri. The only possiblity to obtain recombinants in this yeast is brought about by a yet unknown mechanism, leading to a unilateral transfer of genetic material, found after cocultivation of mutants. This is revealed by the evaluation of F1 offspring from meiotic divisions after autodiploidisation. Although analysis of nuclear and mitochondrial DNA revealed rather gross differences not only between the species but also within different strains of Pichia pinus, only a limited exchange of genetic material is possible in interstrain crosses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00252929
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  • 7
    Electronic Resource
    Electronic Resource
    Lariat RNA of a group II intron in a filamentous fungus (1987)
    Springer
    Current genetics 12 (1987), S. 291-295 
    Details
    ISSN: 1432-0983
    Keywords: Podospora anserina ; Group II intron ; Lariat RNA ; Senescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In senescing strains of the filamentous ascomycete Podospora anserina, the first intron (il) of the mitochondrial gene for cytochrome-c-oxidase subunit I (CO I), a group II intron, accumulates as a circular mitochondrial plasmid (plDNA). In both juvenile and senescent wild type strain s two highly abundant transcripts were detected homologous to il and plDNA. In this report we show that these RNAs are identical molecules having different conformations: the first is a lariat, the second a corresponding linear molecule probably resulting from breakage of the branched circular form. Our findings suggest that the transcripts arise from processing of CO I pre-mRNA, including il, rather than from transcription of the excised plasmid. The significance of the lariat RNA concerning plDNA amplification via a postulated reverse transcription mechanism is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00435292
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  • 8
    Electronic Resource
    Electronic Resource
    Transformation of Podospora anserina with a dominant resistance gene (1989)
    Springer
    Current genetics 16 (1989), S. 57-60 
    Details
    ISSN: 1432-0983
    Keywords: Podospora anserina ; Immortal mutant ; Transformation ; Benomyl resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The Podospora anserina immortal mutant incoloris, vivax was transformed to benomyl resistance with a β-tubuline gene from a resistant Neurospora crassa strain. The transforming plasmid was integrated into the genome of the transformants, and subsequent Southern analysis and retransformation experiments provided no evidence for autonomous replication. Non-homologous integration was demonstrated in some of the transformants. Resistance to benomyl varied widely among the transformants and was conserved after the transformants were grown on non-selective medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00411085
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  • 9
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1986)
    Springer
    OR spectrum 8 (1986), S. 180-180 
    Details
    ISSN: 1436-6304
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01784713
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of miconazole on growth and aflatoxin production by Aspergillus parasiticus (1987)
    Springer
    Mycopathologia 100 (1987), S. 135-144 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract At 5 μM, miconazole prevented the growth of Aspergillus parasiticus Speare in a number of media. Sensitivity to miconazole was increased approximately 10-fold in a medium containing glycerol. At sub-inhibitory concentrations, miconazole stimulated aflatoxin synthesis on media which normally support toxin formation. Miconazole inhibited respiration and altered mitochondrial ultrastructure, suggesting that miconazole inhibits growth and stimulates aflatoxin production by depressing mitochondrial activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437039
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