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  • 2000-2004  (78)
  • 1970-1974  (22)
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  • 1
    facet.materialart.
    Unknown
    In:  Geophys. J. R. astr. Soc., Leiden, Noordhoff, vol. 39, no. 7, pp. 111-121, pp. 2371
    Publication Date: 1974
    Keywords: Earthquake precursor: prediction research ; Earthquake precursor: tilt ; Earthquake precursor: deformation or strain ; GJRaS ; FROTH ; (abstract)
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  • 2
    Publication Date: 2001-02-13
    Description: The current extinction of many of Earth's large terrestrial carnivores has left some extant prey species lacking knowledge about contemporary predators, a situation roughly parallel to that 10,000 to 50,000 years ago, when naive animals first encountered colonizing human hunters. Along present-day carnivore recolonization fronts, brown (also called grizzly) bears killed predator-naive adult moose at disproportionately high rates in Scandinavia, and moose mothers who lost juveniles to recolonizing wolves in North America's Yellowstone region developed hypersensitivity to wolf howls. Although prey that had been unfamiliar with dangerous predators for as few as 50 to 130 years were highly vulnerable to initial encounters, behavioral adjustments to reduce predation transpired within a single generation. The fact that at least one prey species quickly learns to be wary of restored carnivores should negate fears about localized prey extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, J -- Swenson, J E -- Persson, I L -- New York, N.Y. -- Science. 2001 Feb 9;291(5506):1036-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV 89512, USA. berger@unr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11161215" target="_blank"〉PubMed〈/a〉
    Keywords: Alaska ; Animals ; Arousal ; *Behavior, Animal ; *Carnivora ; *Conservation of Natural Resources ; Cues ; *Deer ; *Ecosystem ; Female ; Male ; Odors ; *Predatory Behavior ; Scandinavian and Nordic Countries ; Ursidae ; Vocalization, Animal ; Wolves ; Wyoming
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2003-10-11
    Description: The stone-like otoliths from the ears of teleost fishes are involved in balance and hearing and consist of calcium carbonate crystallites embedded in a protein framework. We report that a previously unknown gene, starmaker, is required in zebrafish for otolith morphogenesis. Reduction of starmaker activity by injection of modified antisense oligonucleotides causes a change in the crystal lattice structure and thus a change in otolith morphology. The expression pattern of starmaker, along with the presence of the protein on the growing otolith, suggest that the expression levels of starmaker control the shape of the otoliths.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sollner, Christian -- Burghammer, Manfred -- Busch-Nentwich, Elisabeth -- Berger, Jurgen -- Schwarz, Heinz -- Riekel, Christian -- Nicolson, Teresa -- New York, N.Y. -- Science. 2003 Oct 10;302(5643):282-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institut fur Entwicklungsbiologie, Spemannstrasse 35, 72076 Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14551434" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Calcification, Physiologic ; Calcium Carbonate/chemistry ; Computational Biology ; Crystallization ; Crystallography, X-Ray ; Ear/embryology/physiology ; Gene Expression ; Hearing ; Hydrogen-Ion Concentration ; Microscopy, Electron, Scanning ; Molecular Sequence Data ; Morphogenesis ; Oligonucleotides, Antisense ; Otolithic Membrane/chemistry/growth & development/*physiology/ultrastructure ; Phenotype ; Postural Balance ; X-Ray Diffraction ; Zebrafish/anatomy & histology/genetics/growth & development/*physiology ; Zebrafish Proteins/chemistry/genetics/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    In:  EPIC3EGS-AGU-EUG Joint Assembly, 6-11 April, Nice, France.
    Publication Date: 2019-07-17
    Description: Biogenic silica (BSi) is a major component in marine geochemical cycles and asuitable proxy for paleoproductivity. The Southern Ocean plays a key role in thebiochemical cycle of silicon. For questions of opal preservation and to assess theglobal biogenic silica cycle it is important to understand the processes controling BSidissolution.Continuously stirred flow-through experiments were used to determine the kineticsand solubility of biogenic silica. Use of flow through reactors allow quantificationof dissolution rates and saturation concentrations under well defined conditions.Dissolution rates of sediment samples in stirred flow-through reactors were measuredas a function of the degree of undersaturation by varying the silica acid concentrationsor the flow rate of the inflow solution. Sediment samples were selected from differentregions of the Southern Ocean, e.g. Weddel Sea, Scotia Sea, Polar Front Zone.New and published information about BSi dissolution kinetics will be considered ina regional context. For this purpose detailed information of diatom assemblages andclay mineralogy are considered. Furthermore an up to date compilation of diffusivesilicic acid fluxes and BSi content in surface sediments is presented. The combinationof results from laboratory measurements and regional distribution of parameterseffecting the benthic silica cycle helps us to decipher processes regulating the BSiburial and provides a more detailed understanding of the dissolution of BSi in surfacesediments within certain regions of the Southern Ocean.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
    Format: application/pdf
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  • 5
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    Unknown
    In:  EPIC368. Conference of the Arbeitsgemeinschaft Nordwestdeutscher Geologen, 5-8 June, Bremerhaven, Germany.
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 6
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    Unknown
    In:  EPIC3Diplomarbeit
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Thesis , notRev
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  • 7
    facet.materialart.
    Unknown
    In:  EPIC3Diplomkartierung
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: Thesis , notRev
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 115 (2001), S. 1995-1999 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: In this paper we present a new approach to calculate optical spectra, which for the first time uses a polarization dependent functional within current density functional theory (CDFT), which was proposed by Vignale and Kohn [Phys. Rev. Lett. 77, 2037 (1996)]. This polarization dependent functional includes exchange-correlation (xc) contributions in the effective macroscopic electric field. This functional is used to calculate the optical absorption spectrum of several common semiconductors. We achieved in all cases good agreement with experiment. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 28 (1972), S. 301-302 
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The Rysto gene from Solanum stoloniferum introduced into potato cultivars (Solanum tuberosum L. ssp. tuberosum) confers resistance to potato virus A, potato virus V and potato virus Y (PVY). In addition to PVY, tobacco etch virus (TEV) and a TEV construct that encodes β-glucuronidase (TEV-GUS) were inoculated to determine the inheritance of resistance to these viruses in progenies obtained from potato cultivars containing the Rysto gene. While cultivars ‘Karlena’ and ‘Delikat’ were susceptible, ‘Bettina’ and clone 927eY were resistant to PVY, TEV and TEV-GUS, as determined by enzyme linked immunosorbent assay, biotest and GUS assay, respectively. The segregation ratios obtained from the progenies of ‘Bettina’בDelikat’ and 816eY בKarlena’ indicate that resistances to PVY and TEV are governed by one dominant gene or two genes tightly linked in coupling phase. Evidently, Rysto confers broad spectrum resistance to potyviruses. TEV resistance could be reliably detected 4 days after inoculation with the TEV-GUS construct by GUS assay. Therefore, the GUS-tagged TEV construct can be used for early selection for resistances based on the gene Rysto or closely linked genes.
    Type of Medium: Electronic Resource
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