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  • Articles  (69)
  • Open Access-Papers  (69)
  • 1975-1979  (69)
  • 1
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    Characteristics of Earthquakes in the Heerland Seismic Zone of Eastern Spitsbergen (1978)
    Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research
    In:  EPIC3Polarforschung, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research, 48(1/2), pp. 31-40, ISSN: 0032-2490
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Polarforschung" , peerRev
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  • 2
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    METEOR Cruise overview M50 (1978)
    PANGAEA
    In:  EPIC3Deutsches Hydrographisches Institut, Hamburg, Bremerhaven, PANGAEA
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    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 3
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    On the relation between movements and the shape of somites in early embryos of the teleost Brachydanio rerio (1977)
    In:  Bijdragen tot de dierkunde vol. 46 no. 2, pp. 261-274
    Details
    Publication Date: 2024-01-12
    Description: As a working hypothesis it is supposed that in the teleost Brachydanio rerio, the muscle contractions, the growth, and probably some other factors, cause the first changes in the shape of the somites. Furthermore, the movements of the embryo could yield the forces by which the somites are brought to their theoretically optimal shape.\nIn order to test this hypothesis, we investigated the somite shape and structure of spontaneously immobile embryos. Although the results are difficult to interpret, they certainly do not contradict the hypothesis.\nFor further analysis we applied two kinds of lesions in order to immobilize early embryos: removal of the brain, and damage to the midbody somites. The results of these experiments indicate that both the development of the shape of the somite and the arrangement of the muscle fibres are dependent on movements of the embryo.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    Connected and disconnected chains of phialoconidia and Sagenomella gen. nov. segregated from Acremonium (1978)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-5850) vol.10 (1978) nr.1 p.97
    Details
    Publication Date: 2015-04-20
    Description: Subramanian’s concept of true and false chains of phialoconidia is rejected and replaced by a distinction between connected and disconnected chains. In connected conidial chains the primary conidial wall is strongly thickened at both ends and a connective is formed. This criterion allows the distinction between trichocomaceous or eurotiaceous (connected) and sphaeriaceous (disconnected) catenulate phialoconidia. The ultrastructure of conidiogenesis is described. On the basis of this criterion, the species of the Acremonium diversisporum series as well as the anamorph of Sagenoma viride Stolk & Orr with connected chains are transferred from Acremonium to the new genus Sagenomella to which four new species are added.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
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    A geo-electric and gravimetric survey in the delta of the rivers Fluvia and Muga (Gerona), Spain (1976)
    In:  Leidse Geologische Mededelingen (0075-8639) vol.49 (1976) nr.3 p.467
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    Publication Date: 2014-10-27
    Description: In the delta of the rivers Fluvia and Muga, the Quaternary is hydrogeologically the most important deposit. It is underlain by Pliocene marls and clays. From geo-electrical soundings and bore-hole data a map with depth contours of the Quaternary-Pliocene boundary plane was constructed. Near the coast the Quaternary consists of two aquifers. One of the restrictions of the resistivity method is that the second aquifer is too thin in respect to its depth. Therefore only the formation resistivities of the complete Quaternary were calculated. By comparing the map of formation resistivities with maps of the clay percentage and the water resistivities in the Quaternary, prospective areas for waterwinning can be delineated. To the north of the delta, Silurian granites and schists crop out. A gravimetric survey over the contact shows a gently sloping boundary of the granite and schist with the Eocene-Pliocene of ca. 15°. From geo-electrical data a comparable inclination of 10° was found. The pre-Eocene topography here is thought to have been formed under tectonic control but the inclination of the Eocene-Pliocene to granite/schist would seem to be too shallow to correspond to a normal fault plane.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 6
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    Die benthische Copepodenfauna in einem ufernahen Verschmutzungsgebiet der westlichen Ostsee (1976)
    In:  EPIC3Helgoländer Wissenschaftliche Meeresuntersuchungen, 28, pp. 19-30
    Details
    Publication Date: 2019-07-17
    Description: The annual cycle and distribution of the benthic copepod fauna of a shallow inshore area in the south of podfauna of a shallow inshore area in the south of Kiel Bay (Baltic Sea) were investigated. The spp composition found is not typical for medium fine sand, but resembles that characteristic of a mixture of coarser sand, phytal and even soft bottoms. The mean population density was ca. 10 times smaller than in off shore stations. Obvious maxima were observed in July and Nov, and attributable to different spp. The dominant harpacticoid spp change several times during the year. Spp diversity was highest in summer, lowest in winter, when only 2 spp, Paraleptastacus holsaticus and Scottopsyllus minor, were dominant. Many spp show breeding maxima in spring and summer, a few in autumn (e.g. Ameira parvula) or winter (e.g. Scottopsyllus minor). The effect of sewage pollution manifests itself significantly only in the immediate vicinity of the outfall: spp diversity decrease; Scottopsyllus minor, Nitocra spec., N. tuypica, Paraleptastacus holsaticus, Parastenhelia spinosa, as well as Tachidius disciples are rather frequent in this zone. The potential value oft hese spp as indicators of water quality is discussed. Most of the harpacticoids in the investigated area are rather tolerant to domestic waste products.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 7
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    Studien an Cystiden-I. Subulicystidium Parm (1975)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-5850) vol.8 (1975) nr.2 p.187
    Details
    Publication Date: 2015-04-20
    Description: The cystidia of the genus Subulicystidium have been studied with the scanning electron microscope. Their ornamentation consists of two rows of ribbon-shaped structures, arranged crosswise to the main axis of the cystidia. The free ends of these structures are double-refractive and have formerly been described as ‘four rows of short crystals’. A key to the accepted three species is given; one new combination is proposed.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 8
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    Limestone cliff morphology and organism distribution on Curaçao (Netherlands Antilles) (1978)
    In:  Leidse Geologische Mededelingen (0075-8639) vol.51 (1978) nr.1 p.131
    Details
    Publication Date: 2014-10-27
    Description: So long as the lithologic nature of the cliff and the physico-chemical nature of the sea water remain similar, variation of cliff morphology is largely a function of water turbulence (degree of exposure). Different cliff profiles (without, or with one or two notches; without or with surf platforms) are all part of a continuous range of variation.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 9
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    A revision of the African genus Myonycteris Matschie, 1899 (Mammalia, Megachiroptera) (1976)
    In:  Beaufortia (0067-4745) vol.24 (1976) nr.317 p.189
    Details
    Publication Date: 2014-10-27
    Description: The fruit bat genus Myonycteris Matschie, 1899, is considered to contain only two valid taxa: the species M. torquata (Dobson, 1878) inhabiting the forest blocks in West Africa and Central Africa, and M. brachycephala (Bocage, 1889) from the island of São Tomé. M. wroughtoni Andersen, 1908, and M. leptodon Andersen, 1908, are considered synonyms of M. torquata. The subgenus Phygetis Andersen, 1912, proposed for the species brachycephala only, is sunk into the synonymy of Myonycteris. A number of new (collecting) localities for torquata is recorded, among which the first one in Nigeria. Data are included on morphological variability, sexual dimorphism, ecology and biology. The possible type locality of torquata, and some evolutionary trends within the genus are discussed.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 10
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    Studies in hydnoid fungi-I. On some genera with hyphal pegs (1976)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-5850) vol.8 (1976) nr.4 p.447
    Details
    Publication Date: 2015-04-20
    Description: Mycobonia flava and Epithele typhae are described. Two new genera are introduced, viz. Mycothele (for Mycobonia disciformis Cunn.) and Epithelopsis (for Epithele fulva Cunn.).
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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