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  • Elsevier  (13)
  • Springer  (11)
  • Nature Publishing Group  (5)
  • American Association for the Advancement of Science  (1)
  • Society of Economic Geologists (SEG)
  • 2020-2024  (2)
  • 1980-1984  (28)
  • 1
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    Zein storage protein gene family of Maize (1982)
    Elsevier
    Details
    Publication Date: 1982-01-01
    Print ISSN: 0022-2836
    Electronic ISSN: 1089-8638
    Topics: Biology
    Published by Elsevier
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Noise and recognizability of coarse quantized images (reply) (1984)
    [s.l.] : Nature Publishing Group
    Nature 308 (1984), S. 212-212 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MORRONE ET AL. REPLY-For us the most intriguing aspect of Harmon and Julesz's1 ingenious demonstration is that blocking does not merely degrade the image, but renders recognition impossible. Normal masking (such as their Fig. 3a1 or indeed our Fig. 1d2) degrades the image but leaves it still ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/308212a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Motion smear (1980)
    [s.l.] : Nature Publishing Group
    Nature 284 (1980), S. 164-165 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In addition to the threshold measurements of temporal summation it is also well established that super-threshold stimulation leads to a sensation which persists in vision for some time after the termination of the stimulus4, again, for about 120 ms in daylight5,6. Perhaps the most direct ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/284164a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Biochemical basis for the continuous copulation of female Schistosoma mansoni (1980)
    [s.l.] : Nature Publishing Group
    Nature 283 (1980), S. 478-479 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To detect which proteins were actually produced by the worms, S. mansoni of the NIH strain were perfused from C57BL/6B mice at 70 days post-infection, mechanically separated according to sex, and incubated for 24 h in medium HB597 (Connaught) with 10% fetal calf serum and 8 µCi ml-1 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/283478a0
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Intragenomic DNA sequence homologies in the chicken and other members of the classAves: DNA re-association under reduced stringency conditions (1980)
    Springer
    Journal of molecular evolution 15 (1980), S. 291-307 
    Details
    ISSN: 1432-1432
    Keywords: Avian genome evolution ; Intragenomic DNA sequence homology Reduced-stringency DNA reassociation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have investigated the intragenomic DNA sequence homologies of twelve species of birds representing five orders, and emphasizing Galliformes. This study differs in two important ways from the classical approaches taken in constructing and evaluating phylogenies based on DNA sequence similarities. Comparisons are made on the basis of sequence homologieswithin genomes of related birds, rather than between genomes. DNA is reassociated at 50°C in 0.5M phosphate buffer; these conditions allow formation and detection of duplexes containing more mismatch than would normally be permitted using more stringent conditions, affording an opportunity to observe more ancient sequence homologies. Thermal stability profiles of DNA duplexes formed under these conditions are the basis of comparison; three general patterns were observed. This approach emphasizes differences in sequence composition between genomes while the more traditional method of intergenomic tracer DNA hybridization at higher stringency emphasizes sequence similarities. No correlation was found between taxonomic position and intragenomic sequence composition, either within or between lineages. The thermal stability profiles of DNA duplexes formed within avian genomes did not reflect the biological similarities inferred from morphology, karyotype, and studies of interspecific hybridization. While all of the differences observed could have occurred over geological time, it was surprising that the genomes of the domestic chicken and the Red Jungle Fowl (Gallus gallus) differ in their sequence compositions. It appears that amplification/reduction events and/or positional changes occur rather often during evolution of a lineage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01733136
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  • 6
    Electronic Resource
    Electronic Resource
    Solar Maximum Mission (1980)
    Springer
    Solar physics 65 (1980), S. 5-14 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The scientific objective of the Solar Maximum Mission is to understand the physics of solar flares. A description is provided for the SMM spacecraft, the scientific planning activity, the observing vprogram and the guest investigator program associated with the mission.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00151380
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  • 7
    Electronic Resource
    Electronic Resource
    Added noise restores recognizability of coarse quantized images (1983)
    [s.l.] : Nature Publishing Group
    Nature 305 (1983), S. 226-228 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A detail of Leonardo's 'Mona Lisa' was digitized into 256 x 256 pixels, using a flying spot scanning system made up of a Cromemco microcomputer, an oscilloscope (Hewlett Packard 1335A), a lens and a photometer (Spectra Pritchard 1980A). The digitized file was transferred to a larger computer ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/305226a0
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  • 8
    Electronic Resource
    Electronic Resource
    Light isomerizes the chromophore of bacteriorhodopsin (1980)
    [s.l.] : Nature Publishing Group
    Nature 287 (1980), S. 351-353 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The absorption of a photon by light-adapted bacteriorhodopsin (bRLA), the purple membrane protein of the Halo-bacterium halobium, initiates a series of transformations13, reminiscent of the bleaching sequence of rhodopsin. The primary photochemical product, K, is a bathochromically shifted species; ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/287351a0
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  • 9
    Electronic Resource
    Electronic Resource
    Ovarian development in 46,XY gonadal dysgenesis (1982)
    Springer
    Human genetics 〈Berlin〉 60 (1982), S. 196-199 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In human the XY ovary is degenerative, there being scant evidence of persistence of that organ beyond the perinatal period. Here we describe indications of functional ovarian tissue in a 17-year-old female with male karyotype, H-Y+ cellular phenotype, and some signs of the Turner syndrome. Her gonads were removed after the onset of secondary amenorrhea. Histological examination revealed a degenerative right ovary devoid of germ cells and follicles, and a left streak gonad. There was no trace of testicular development in either side.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00569712
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  • 10
    Electronic Resource
    Electronic Resource
    Enzootic Aspergillosis in wild Red Vented Cockatoos in the Philippines (1981)
    Springer
    Mycopathologia 73 (1981), S. 21-23 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Philippine Red Vented Cockatoos were being trapped in the wild and dispersed directly to private homes, aviarys, pet stores and for export to the United States of America. Except for non-aggressive behaviour and tiring easily the subjects showed clinically nothing peculiar. Numerous cases of Aspergillosis with no clinical signs prior to death were being reported at the United States Air Force Base, Clark Field, Angeles City, Philippines. In all cases stress was a predisposing factor to death; such as enclosure in a small bird cage. Those birds in aviarys that were kept free-flying remained clinically normal, with no deaths recorded. Systematiç examination to determine the causative source of infection was carried out and revealed natural infection in the wild state as the cause of disease in caged Red Vented Cockatoos in the Philippines. Examination on three other species of Philippine Pstitticine birds revealed only the Red Vented Cockatoo to be infected or a latent carrier in the wild state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00443008
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