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  • 1
    Keywords: India ; Archean granitoids ; Indian cratons ; Archean supercontinents ; Archean tectonics ; early earth
    Notes: This book presents a synthesis of research into Archean Indian granitoids. This volume will provide an update of Archean granitoids from each Indian craton and will examine emplacement mechanisms, petrogenesis, temporal distributions, geodynamic settings and mineralization. The implications for Archean tectonics, changes in geodynamics and reconstructions of Archean supercontinents will also be highlighted. | Contents: 8 January 2019 --- Deformation-driven emplacement-differentiation in the Closepet Pluton, Dharwar Craton, South India: an alternative view / Abhijit Bhattacharya / Geological Society, London, Special Publications, 489, https://doi.org/10.1144/SP489-2019-315 --- Mineral-fluid interactions in the late Archean Closepet granite batholith, Dharwar craton, southern India / Ewa Slaby, Katarzyna Gros, Hans-Jürgen Förster, Alicja Wudarska, Łukasz Birski, Morihisa Hamada, Jens Götze, Hervé Martin, Mudlappa Jayananda, Jean-François Moyen and Izabela Moszumańska / Geological Society, London, Special Publications, 489, https://doi.org/10.1144/SP489-2019-287 --- Dissecting through the metallogenic potentials of older granitoids - case studies from Bastar and Eastern Dharwar cratons India / Dinesh Pandit, Sourabh Bhattacharya and Mruganka Kumar Panigrahi / Geological Society, London, Special Publications, 489, https://doi.org/10.1144/SP489-2019-342 --- Archaean granitoids of Bastar craton, Central India / M. E. A. Mondal, M. Faruque Hussain and Talat Ahmad / Geological Society, London, Special Publications, 489, https://doi.org/10.1144/SP489-2019-311
    Edition: online first
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  • 2
    Publication Date: 2015-10-10
    Description: Scanning electron microscopy has been identified as an important approach in studying scale microstructures in fish with reference to taxonomy. In this article, a detailed microstructural analysis of the scales of Channa barca , a poorly known snakehead fish was carried out the location of focus, inter-radial distance, average width and inter-circular space of anterior circulii; inter-circular distance and dentition in lateral circulii; the shape, spacing, length of lepidonts in anterior circulii and the number and width of radii were compared with those of a related species, Channa aurantimaculata . The location of the focus was found to be similar to those of the gachua group of the genus Channa but was different from those of the marulius group. There were major similarities—though with a few notable differences—in scale microstructures between C. barca and the aforementioned closely related species C. aurantimaculata , indicating that scale microstructure analysis has the potential to distinguish even closely related fish species . While several of the microstructural features of the scale were found to be similar to those of the gachua group, others were closer in nature to those of the marulius group. Some microstructural characteristics, however, were found to be totally different from those of both gachua and marulius groups. All of these characteristic features of scale microstructure in C. barca are discussed with reference to taxonomic significance.
    Print ISSN: 0022-0744
    Electronic ISSN: 1477-9986
    Topics: Electrical Engineering, Measurement and Control Technology , Natural Sciences in General , Physics
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  • 3
    ISSN: 1435-5663
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract Issues related to the automated identification and elimination of the adverse influence of small geometric model features on the quality of automatically generated meshes, using local mesh modification operators, are addressed. The definition of mesh validity with respect to the geometric model is extended to include multiple mesh entity classifications. Checks based on mesh topology are used to ensure no dimensional reductions in the locally modified mesh. Example geometric models of varied complexity containing small geometric features are used to demonstrate the ability of presented procedures to improve mesh quality in terms of aspect ratio and small angle metrics.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1424
    Keywords: Key words: Multidrug resistance — P-glycoprotein — Drug transport — Glycosylation — Vaccinia virus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract. P-glycoprotein (P-gp), the product of human MDR1 gene, which functions as an ATP-dependent drug efflux pump, is N-linked glycosylated at asparagine residues 91, 94, and 99 located within the first extracellular loop. We report here the biochemical characterization of glycosylation-deficient (Gly−) P-gp using a vaccinia virus based transient expression system. The staining of HeLa cells expressing Gly− P-gp (91, 94, and 99N→Q), with P-gp specific monoclonal antibodies, MRK-16, UIC2 and 4E3 revealed a 40 to 50% lower cell-surface expression of mutant P-gp compared to the wild-type protein. The transport function of Gly− P-gp, assessed using a variety of fluorescent compounds indicated that the substrate specificity of the pump was not affected by the lack of glycosylation. Additional mutants, Gly− D (91, 94, 99N→D) and Gly−Δ (91, 94, 99 N deleted) were generated to verify that the reduced cell surface expression, as well as total expression, were not a result of the glutamine substitutions. Gly− D and Gly−Δ Pgps were also expressed to the same level as the Gly− mutant protein. 35S-Methionine/cysteine pulse-chase studies revealed a reduced incorporation of 35S-methionine/cysteine in full length Gly− P-gp compared to wild-type protein, but the half-life (∼3 hr) of mutant P-gp was essentially unaltered. Since treatment with proteasome inhibitors (MG-132, lactacystin) increased only the intracellular level of nascent, mutant P-gp, the decreased incorporation of 35S-methionine/cysteine in Gly− P-gp appears to be due to degradation of improperly folded mutant protein by the proteasome and endoplasmic reticulum-associated proteases. These results demonstrate that the unglycosylated protein, although expressed at lower levels at the cell surface, is functional and suitable for structural studies.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The superconducting compound YBa2Cu3O7−x (YBCO) and oxides of copper (CuO and mixture of CuO and Cu2O) have been examined by secondary-ion-mass spectrometry (SIMS). The results support the fact that two kinds of copper (from the consideration of bonding and valence state) exist in YBCO—one in the basal planes of charge reservoir layers and the other in the conduction layers. The bonding of Cu-O in the CuO2 conduction layer unit is similar to that in CuO. No Cu+++ secondary ions could be detected in the SIMS spectrum, in agreement with electron spectroscopy for chemical analysis, extended x-ray-absorption fine structure, and electron probe microanalysis measurements reported earlier. A plausible explanation has been given for this.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An ultrahigh-vacuum (UHV) system for STM studies is described where a home-built STM is combined with a novel facility for in situ exchange of samples and tips. Technical details concerning the design of the sample and tip holders and the manipulation and storage equipment are given. For the preparation of organic films a compact evaporation source comprising two ovens with an excellent thermal insulation was constructed. First STM results of a coronene film on graphite and of tungsten diselenide are presented.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 60 (1992), S. 2487-2488 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Uniaxial Pb5Ge3O11 thin films were successfully fabricated by the sol-gel processing route. Crack-free and c-axis oriented thin films (1600 A(ring)) were observed on (111) Pt-coated Si substrates when heat treated at 450 °C for 15 min. The thin films exhibited well saturated P-E hysteresis loops with Pr=3.3 μC/cm2, Ps=3.7 μC/cm2, and Ec=135 kV/cm. Specifically, a 1600 A(ring) film switched at 2.2 V. The possible applications such as nonvolatile ferroelectric memories and CCD IR image sensors without fatigue or retention problems, are discussed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 65 (1994), S. 2027-2029 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Paraelectric (Pb0.72La0.28)TiO3 or PLT(28) thin films were deposited on platinum coated Si substrates by the sol-gel technique. Two distinct groups of top metals, namely MT (Ni, Cr, and Ti, i.e., transition metals) and MN (Pt, Au, and Ag, i.e., noble metals) formed Ohmic and Schottky contacts, respectively. A Schottky barrier height of 1.83 eV at the Pt-PLT interface was determined. The conventional Schottky emission and Fowler–Nordheim tunneling equations were modified to account for the voltage dependence of the interfacial permittivity. It was found that Schottky emission, thermionic tunneling, and Fowler–Nordheim tunneling mechanisms were predominant in the voltage ranges of 2<V<7, 7<V<16, and V(approximately-greater-than)16, respectively. © 1994 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0020-7462
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
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