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  • Other Sources  (16)
  • Springer  (16)
  • American Institute of Physics (AIP)
  • 1975-1979  (16)
  • 1
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    The Marquardt-Levenberg algorithm: implementation and theory (1977)
    Springer
    In:  Bull., Polar Proj. OP-O3A4, Numerical Analysis, New York, Springer, vol. 3, no. Subvol. b, pp. 105-116, (ISBN 0080419208)
    Details
    Publication Date: 1977
    Keywords: Inversion
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Physik (1977)
    Springer
    In:  Berlin, Springer, vol. 10, no. Subvol. b, pp. 220, (ISBN: 0-08-037951-6)
    Details
    Publication Date: 1977
    Keywords: Textbook of physics
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Experimental Rock Deformation - The Brittle Field (1978)
    Springer
    In:  Berlin, 254 pp., Springer, vol. 15, no. Publ. No. 12, pp. 585, (ISBN 1-85233-708-7)
    Details
    Publication Date: 1978
    Keywords: Laboratory measurements ; Rock mechanics ; Textbook of geophysics
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Stress and Strain - Basic Concepts of Continuum Mechanics for Geologists (1976)
    Springer
    In:  New York, Springer, vol. 1, no. 1, pp. 65-66, (ISBN 0 340 76405 8)
    Details
    Publication Date: 1976
    Keywords: Stress ; Textbook of geophysics ; Textbook of geology ; Elasticity
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Natural Products from Porifera (1976)
    Springer
    In:  Fortschritte der Chemie Organischer Naturstoffe, 33 (1). pp. 1-72.
    Details
    Publication Date: 2017-10-11
    Description: Since organic chemistry began, the chemistry of natural products from terrestrial organisms such as plants and fungi has been studied intensively; in contrast, marine species have received relatively little attention. However, in the last decade research in the field of marine products has increased sbstantially. The heightened interest in this area is attested by the appearance of the monumental treatise of Halstead on Poisonous and Venomous Marine Animals in 1965 (108), Baslow’s review on “Marine Pharmacology” in 1969 (14) and Scheuer’s recent book “Chemistry of Marine Natural Products” (160) in 1973. In addition Premuzic’s review devoted to the Chemistry of Natural Products Derived from Marine Sources, was published in volume 29 of this series in 1971 (152).
    Type: Article , PeerReviewed
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  • 6
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    The cells that secrete the beaks in octopods and squids (Mollusca, Cephalopoda) (1976)
    Springer
    In:  Cell and Tissue Research, 167 (2). pp. 229-241.
    Details
    Publication Date: 2020-07-24
    Description: A single layer of cells secretes the hard cephalopod beaks. The beccublasts are tall columnar cells that separate the beak from the surrounding buccal muscles, and must serve to attach these muscles to the beak. Within the cell layer there are three types of cells. The first, and most frequently found contain cell-long fibrils. These fibrils may have contractile and tensile properties. Complex trabeculae extend from the beccublasts into the matrix of the beak. The fibrils are attached to these trabeculae and at the other end of the cells they are anchored near to the beccublast-muscle cell interface, closely associated with the muscles that move the beak. The second group of cells contain masses of endoplasmic reticulum the cysternae of which are arranged along the long axis of the cell. These cells also contain dense granules and are probably the major source of beak hard tissue. It is probable that each cell secretes its own column of beak hard tissue. The third group of cells contains a mixture of fibrils and secretory tissue. In the beccublast layer there are changes in the proportion of the three types of cells depending upon the region sampled. In the region where growth is most active there are mostly secretory cells, whereas near the biting and wearing tip there are mainly anchoring type cells.
    Type: Article , PeerReviewed
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  • 7
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    Cobalt Distribution and the Pyrite-Chalcopyrite Geothermometer (1978)
    Springer
    In:  Geochemistry International . pp. 44-48.
    Details
    Publication Date: 2018-01-17
    Description: Laboratory data are presented on the distribution of cobalt between pyrite, chalcopyrite, and pyrrhotite. Pyrite-type deposits are used to show that the results enable one to estimate the temperatures of formation for copper mineralization. Recent years have seen extensive studies on element distributions between coexisting minerals in order to define mineralogical thermometers and barometers [1-3]. Detailed studies have been made of the thermodynamic basis of such distributions, as well as of the factors that influence component levels in coexisting minerals. Here we will not consider a theoretical analysis of the distribution, but we do note that trace elements appear in pyrite and chalcopyrite only below the 1 wt. % level, while the compositions of the minerals deviate only slightly from stoichiometric, with temperature the main parameter that controls the distribution.
    Type: Article , PeerReviewed
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  • 8
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    Marine sponges as habitats of anaerobic phototrophic bacteria (1976)
    Springer
    In:  Microbial Ecology, 3 (1). pp. 1-9.
    Details
    Publication Date: 2015-03-10
    Description: Enrichment cultures were prepared with different media for phototrophic bacteria from four species of marine sponges, collected from oxic coastal waters near Split (Yugoslavia). We obtained pure cultures of six strains of Chromatiaceae and two strains of Rhodospirillaceae by agar shake dilution. The Rhodospirillaceae were identified as Rhodopseudomonas sulfidophila and a marine form of Rhodopseudomonas palustris. TheChromatiaceae were identified as Chromatium vinosum, Chromatium gracile, Chromatium minutissimum. Ectothiorhodospira mobilis, and a Chromatium species, which in some respects resembles Chromatium minus. The occurrence of strictly anaerobic phototrophic bacteria in aerobic sponges is discussed with respect to nutrition and possible syntrophism
    Type: Article , PeerReviewed
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  • 9
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    Der Meeresboden : Forschungsstand und Zukunftsaufgaben (1975)
    Springer
    In:  Naturwissenschaften, 62 . pp. 321-330.
    Details
    Publication Date: 2015-03-02
    Description: Processes from above and below influence the sea bottom and its sedimentary cover. The evolution of the lithosphere is being as passionately discussed today as was the evolution of the biosphere a century ago. The physical, chemical and biological interactions at the sea bottom, of "benthic boundary", call for interdisciplinary research.
    Type: Article , PeerReviewed
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  • 10
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    Ectothiorhodospira halochloris sp. nov., a new extremely halophilic phototrophic bacterium containing bacteriochlorophyll b (1977)
    Springer
    In:  Archives of Microbiology, 114 (2). pp. 115-121.
    Details
    Publication Date: 2015-03-24
    Description: A new bacteriochlorophyll b containing phototrophic bacterium was isolated from extremely saline and alkaline soda lakes in Egypt. Enrichment and isolation were performed using a synthetic medium with high contents of sodium carbonate, sodium sulfate and sodium chloride. Photoautotrophic growth occurred with hydrogen sulfide as photosynthetic electron donor. During oxidation of sulfide to sulfate extracellular elemental sulfur globules appeared in the medium. Cells were also capable to grow under photoheterotrophic conditions with acetate, propionate, pyruvate, succinate, fumarate or malate as carbon sources and electron donors. Under these conditions sulfate was assimilated. Optimal growth under the applied experimental conditions occurred at a total salinity of 14–27%, a pH-range between 8.1 and 9.1 and a temperature between 47°C and 50°C. The cells were 0.5–0.6 μm wide and, depending on cultural conditions, 2.5–8.0 μm long; they were spiral shaped, multiplied by binary fission and were motile by means of bipolar flagella. Intercytoplasmic photosynthetic membranes were present as stacks. Bacteriochlorophyll b was the main photosynthetic pigment; small amounts of carotenoids were mainly present as glucosides of rhodopin and its methoxy derivative. The new organism is described as Ectothiorhodospira halochloris.
    Type: Article , PeerReviewed
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