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  • Animals  (2)
  • 9320  (1)
  • Alternative Splicing  (1)
  • 2000-2004  (2)
  • 1975-1979  (1)
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  • 1
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    Co-seismic geoelectric potential changes observed in Japan (2000)
    In:  Geophys. Res. Lett., Colorado Springs, US Air Force Academy, vol. 27, no. 10, pp. 1535-1538, pp. L12S08, (ISSN: 1340-4202)
    Details
    Publikationsdatum: 2000
    Beschreibung: Nagao et al. monitor the geoelectric potential difference between pairs of electrodes (or dipoles) buried at about 2 m depth at several stations in Japan for the purpose of observing co-seismic signals. Studying several recent earthquakes, they report that the signals commence not with the origin time of the earthquakes but with the arrival time of seismic waves. They find two types of co-seismic changes: offset/decay type, which last long after the seismic vibrations cease, and oscillatory type, which decay with the seismic vibrations. They also find that the amplitude of the co-seismic signals does not scale with the dipole length. Also in this issue, Hayakawa et al. [1531] investigate ultra low frequency (ULF) electromagnetic emissions associated with a large earthquake that occurred at Biak Island, Indonesia, in February 1996. Examining data from Biak and Darwin, they find that the ULF emissions observed about 1.5 months before the quake serve as a precursory signature of the earthquake.
    Schlagwort(e): Earthquake ; Electromagnetic methods/phenomena ; 0699 ; Electromagnetics ; General ; or ; miscellaneous ; 7223 ; Seismology ; Seismic ; hazard ; assessment ; and ; prediction ; 9320 ; Information ; related ; to ; geographic ; region ; Asia ; 9810 ; General ; or ; miscellaneous ; New ; fields ; (not ; classifiable ; under ; other ; headings) ; GRL
    Standort Signatur Erwartet Verfügbarkeit
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    BIBLIOGRAFIE SEISMOLOGIE
  • 2
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    Ventroptin: a BMP-4 antagonist expressed in a double-gradient pattern in the retina (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2001-07-07
    Beschreibung: In the visual system, the establishment of the anteroposterior and dorsoventral axes in the retina and tectum during development is important for topographic retinotectal projection. We identified chick Ventroptin, an antagonist of bone morphogenetic protein 4 (BMP-4), which is mainly expressed in the ventral retina, not only with a ventral high-dorsal low gradient but also with a nasal high-temporal low gradient at later stages. Misexpression of Ventroptin altered expression patterns of several topographic genes in the retina and projection of the retinal axons to the tectum along both axes. Thus, the topographic retinotectal projection appears to be specified by the double-gradient molecule Ventroptin along the two axes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sakuta, H -- Suzuki, R -- Takahashi, H -- Kato, A -- Shintani, T -- Iemura Si -- Yamamoto, T S -- Ueno, N -- Noda, M -- New York, N.Y. -- Science. 2001 Jul 6;293(5527):111-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Neurobiology, National Institute for Basic Biology, The Graduate University for Advanced Studies, 38 Nishigonaka, Myodaiji-cho, Okazaki 444-8585, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11441185" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alternative Splicing ; Amino Acid Sequence ; Animals ; Bone Morphogenetic Protein 4 ; Bone Morphogenetic Proteins/*antagonists & inhibitors/genetics/metabolism ; Chick Embryo ; Cloning, Molecular ; Electroporation ; Embryo, Nonmammalian/cytology/metabolism ; Eye Proteins/chemistry/genetics/*metabolism ; *Gene Expression Regulation, Developmental ; Gene Library ; Humans ; In Situ Hybridization ; Mice ; Microinjections ; Molecular Sequence Data ; *Morphogenesis ; Nerve Tissue Proteins ; Precipitin Tests ; Protein Binding ; Protein Isoforms/chemistry/genetics/metabolism ; RNA, Messenger/analysis/genetics ; Retina/*embryology/*metabolism ; Sequence Alignment ; Surface Plasmon Resonance ; Xenopus Proteins ; Xenopus laevis/embryology/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
  • 3
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    Target velocity signals of visual tracking in vermal Purkinje cells of the monkey (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-17
    Beschreibung: Discharges of Purkinje cells were recorded from the vermis, lobules VI and VII, of a monkey trained to track a visual target. When the monkey tracked a sinusoidally oscillating target, cellular activity changes in phase with the velocity signal of the eye movement. When the monkey fixated a stationary point, almost identical modulation in activity occurred, reflecting the velocity signal of the motion of the retinal image of the target. The data suggest that the vermis participates in the control of smooth pursuit eye movements by providing the oculomotor system with the actual target velocity information which is the sum of eye velocity and retinal image velocity signals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kase, M -- Noda, H -- Suzuki, D A -- Miller, D C -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):717-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/111350" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Animals ; *Eye Movements ; Haplorhini ; Motion Perception/physiology ; Proprioception ; Purkinje Cells/*physiology ; Visual Perception/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
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