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  • 1
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    Revision of type material of nivicolous species of Stemonitales (2005)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-5850) vol.18 (2005) nr.4 p.485
    Details
    Publication Date: 2015-04-20
    Description: The types of Comatricha anastomosans Kowalski, C. filamentosa Meyl., C. suksdorfii Ellis & Everh. var. aggregata Meyl. and Lamproderma longifilum H. Neubert, Nowotny & K. Baumann were studied. Comatricha anastomosans is synonymized with C. filamentosa, C. suksdorfii var. aggregata with Symphytocarpus confluens (Cooke & Ellis) Ing & Nann.-Bremek. A new lectotype for C. filamentosa is proposed. The synonymy of L. longifilum with C. anastomosans is confirmed. SEM and light microscope micrographs of spores, capillitia and sporocarps are given.
    Keywords: nivicolous Myxomycetes, i ; Comatricha,. ; Lamproderma ; Symphytocarpus ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    Revision of type material of nivicolous species of Stemonitales (2005)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 18 no. 4, pp. 485-497
    Details
    Publication Date: 2024-01-12
    Description: The types of Comatricha anastomosans Kowalski, C. filamentosa Meyl., C. suksdorfii Ellis & Everh. var. aggregata Meyl. and Lamproderma longifilum H. Neubert, Nowotny & K. Baumann were studied. Comatricha anastomosans is synonymized with C. filamentosa, C. suksdorfii var. aggregata with Symphytocarpus confluens (Cooke & Ellis) Ing & Nann.-Bremek. A new lectotype for C. filamentosa is proposed. The synonymy of L. longifilum with C. anastomosans is confirmed. SEM and light microscope micrographs of spores, capillitia and sporocarps are given.
    Keywords: nivicolous Myxomycetes, i ; Comatricha,. ; Lamproderma ; Symphytocarpus ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    Solar Wind-Magnetosphere Coupling During an Isolated Substorm Event: A Multispacecraft ISTP Study (1997)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Multispacecraft data from the upstream solar wind, polar cusp, and inner magnetotail are used to show that the polar ionosphere responds within a few minutes to a southward IMF turning, whereas the inner tail signatures are visible within ten min from the southward turning. Comparison of two subsequent substorm onsets, one during southward and the other during northward IMF, demonstrates the dependence of the expansion phase characteristics on the external driving conditions. Both onsets are shown to have initiated in the midtail, with signatures in the inner tail and auroral oval following a few minutes later.
    Keywords: Geophysics
    Type: NASA-CR-205242 , Paper-97GL00816 , NAS 1.26:205242 , Geophysical Research Letters (ISSN 0094-8534); 24; 8; 983-986
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  • 4
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    THEMIS Observations of Directly-Driven Pi2 Pulsations (2010)
    In:  CASI
    Details
    Publication Date: 2019-07-19
    Description: The THEMIS tail seasons have provided an unprecedented opportunity to examine the causal relationship between midtail plasma flows and low latitude Pi2 pulsations. We present several events where multiple THEMIS spacecraft observed magnetotail flow bursts which were followed up to several minutes later by ground Pi2 pulsations. We find good agreement with the waveforms of the flow bursts and flank Pi2, in agreement with the hypothesis that Pi2 at low-latitude on the flank are directly-driven by periodic variations in the flow bursts. For at least I event we are able to follow the Pi2 impulses from the periodic flow bursts on the nightside. to ground Pi2 at the flanks, and finally through the dayside magnetosphere as observed by GOES. We further place the physical mechanism generating these Pi2 into the context of sub storm onset. We conclude by discussing the sequence and coupling of events that are necessary to explain the correlation, and the constraints this places on models of transient magnetospheric transport.
    Keywords: Geophysics
    Type: 10 International Conference on Substorms; Mar 22, 2010 - Mar 26, 2010; San Luis Obispo,CA; United States
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  • 5
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    A Statistical Study of the Global Structure of the Ring Current (1997)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: In this paper we derive the average configuration of the ring current as a function of the state of the magnetosphere as indicated by the Dst index. We sort magnetic field data from the Combined Release and Radiation Effects Satellite (CRRES) by spatial location and by the Dst index in order to produce magnetic field maps. From these maps we calculate local current systems by taking the curl of the magnetic field. NN7e find both the westward (outer) and the eastward (inner) components of the ring current. We find that the ring current intensity varies linearly with D.St as expected, and that the ring current is asymmetric for all Dst values. The azimuthal peak of the ring current is located in the afternoon sector for quiet conditions, and near midnight for disturbed conditions. The ring current also moves closer to the Earth during disturbed conditions. We are able to recreate the Dst index by integrating the magnetic perturbations caused by the ring current. We find that we needed to apply a 20 nT offset to Dst, and assume a perfectly conducting Earth to obtain an optimal agreement between the computed and the observed Dst. We interpret the 20 nT offset as the magnetic field generated by the quiet time ring current used as baseline in computing Dst.
    Keywords: Geophysics
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  • 6
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    Crres Observations of Particle Flux Dropout Events (1999)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: The complete disappearance of energetic electrons was observed by CRRES in the near geosynchronous region in 7.5% of the orbits examined. These total flux dropouts were defined by the fluxes rapidly dropping to levels below the sensitivity of the MEA energetic electron spectrometer on the CRRES satellite. They were separated into those that were only energetic electron dropouts and those that were associated with energetic ion and plasma dropouts. Approximately 20% of the events showed dropouts of 0 particle fluxes, and these were usually coincident with large increases in the local magnetic intensity and signatures of strong current systems. The energetic particle instruments and magnetometer on CRRES provide a detailed picture of the particle and field responses to these unusual conditions. Both the local morning and dusk events were associated with strong azimuthal (eastward) and radial changes in the magnetic field indicative of a strong current system approaching and sometimes crossing the CRRES position at the time of the flux dropouts. The direction of the field changes and the details of particle observations are consistent with CRRES passing through the plasma sheet boundary layer and entering the tail lobe for a significant number of the events.
    Keywords: Geophysics
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  • 7
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    Magnetopause Erosion During the 17 March 2015 Magnetic Storm: Combined Field-Aligned Currents, Auroral Oval, and Magnetopause Observations (2016)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: We present multimission observations of field-aligned currents, auroral oval, and magnetopause crossings during the 17 March 2015 magnetic storm. Dayside reconnection is expected to transport magnetic flux, strengthen field-aligned currents, lead to polar cap expansion and magnetopause erosion. Our multimission observations assemble evidence for all these manifestations. After a prolonged period of strongly southward interplanetary magnetic field, Swarm and AMPERE observe significant intensification of field-aligned currents .The dayside auroral oval, as seen by DMSP, appears as a thin arc associated with ongoing dayside reconnection. Both the field-aligned currents and the auroral arc move equatorward reaching as low as approx. 60 deg. magnetic latitude. Strong magnetopause erosion is evident in the in situ measurements of the magnetopause crossings by GOES 13/15 and MMS. The coordinated Swarm, AMPERE, DMSP, MMS and GOES observations, with both global and in situ coverage of the key regions, provide a clear demonstration of the effects of dayside reconnection on the entire magnetosphere.
    Keywords: Geophysics
    Type: GSFC-E-DAA-TN40691 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 43; 6; 2396-2404
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  • 8
    Electronic Resource
    Electronic Resource
    The Cytogenetics of Human TumorsThe investigations reported in this paper were carried out with the support of the Deutsche Forschungsgemeinschaft. (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 709-718 
    Details
    ISSN: 0570-0833
    Keywords: Cytogenetics ; Tumor formation ; Chromosomes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chromosome changes can be observed in many tumors, suggesting that a connection exists between chromosome aberrations and tumor formation. A general introduction to the techniques and objectives of research in cytogenetics is followed by a discussion of the modern theories of the etiology of tumors, using human meningioma as an example. Meningiomas are relatively benign, slowly growing tumors of the meninges.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196807091
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