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  • 1
    Electronic Resource
    Electronic Resource
    Comparison of evaluation methods for selection of resistance to Fusarium head blight in a recurrent selection programme in wheat (Triticum aestivum L.) (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 118 (1999), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The objectives of this study were to compare efficiency of evaluation for resistance to Fusarium head blight (FHB) under two inoculation methods in a recurrent selection programme. Fifty selected homozygous F5 fertile lines, from each of five cycles (C0, C1, C2, C3 and C4) of recurrent selection, and two control cultivars were evaluated in a split-plot design in 1995 and 1996 under the soil-surface inoculation with Fusarium graminearum-colonized kernels and the single-floret inoculation with ascospore suspension. Comparison of the two inoculation methods using means, ranges, coefficients of variation, heritabilities and correlations among infected spikelet rate (ISR), reaction index (RI) and disease index (DI) indicated that FHB resistance could be evaluated with similar accuracy and precision using either of the two inoculation methods. Regressions of disease scores in the soil-surface inoculation on disease scores in the single-surface inoculation were positive and highly significant, showing a strong relationship between both inoculation methods for FHB resistance. The percentage of lines with similar performance for FHB disease scores in both inoculation methods was high. The soil-surface inoculation and single-floret inoculation appear to be useful techniques for evaluating numerous individuals of segregating population and screening advanced homozygous lines for FHB resistance in a recurrent selection programme in wheat, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.1999.00385.x
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  • 2
    Electronic Resource
    Electronic Resource
    Observation of the occultation of star SAO 138868A by Asteroid (444) Gyptis
    Amsterdam : Elsevier
    Chinese Astronomy and Astrophysics 7 (1983), S. 169 
    Details
    ISSN: 0275-1062
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0275-1062(83)90043-7
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  • 3
    Electronic Resource
    Electronic Resource
    Preparation and characterization of bioactive monolayer and functionally graded coatings (1999)
    Springer
    Journal of materials science 10 (1999), S. 269-273 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Hydroxyapatite powders were made by reacting orthophosphoric acid with calcium hydroxide and dense bioactive coatings were subsequently produced by the plasma spray technique. Three types of hydroxyapatite (flame spheroidized) monolayer coatings and three types of functionally graded coatings were manufactured. It was found that average microhardness values of monolayer coatings decreased as the indentation load increased. The relationship between indentation load and indent diagonal length observed Meyer's law. Microhardness and fracture toughness of coatings were affected by characteristics of feedstock powders for plasma spraying. The indentation fracture toughness of coatings could be significantly increased by incorporating a toughening phase. ©1999 Kluwer Academic Publishers
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008901428552
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  • 4
    Electronic Resource
    Electronic Resource
    Ba-REE fluorcarbonate minerals froma carbonatite dyke at Bayan Obo,Inner Mongolia, North China (2000)
    Springer
    Mineralogy and petrology 70 (2000), S. 221-234 
    Details
    ISSN: 1438-1168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Zusammenfassung Die Ba-SEE Fluorkarbonate Cebait, Huangoit und Cordylit kommen in einem Karbonatitgang bei Bayan Obo, Innere Mongolei, Nord-China, vor. Ihre chemische Zusammensetzung, SEE-Verteilungsmuster und syntaktische Verwachsungsbeziehungen werden vorgestellt. Letztere wurden mit Mikrosonden-Rastermethoden untersucht und im Zusammenhang mit der Abkühlungsgeschichte des Karbonatit-Magmas oder eventueller späterer Ereignisse interpretiert. Die SEE-Verteilungsmuster der Ba-SEE Fluorkarbonate im Gang ähneln denen entsprechender Minerale im Dolomit-Marmor in dem die Großlagerstätte Bayan Obo aufsitzt; dies weist darauf hin, dass beide kogenetisch sein koönnten.
    Notes: Summary The new occurrence in a carbonatite dyke at Bayan Obo, Inner Mongolia, North China, of the Ba-REE fluorocarbonate minerals cebaite, hunghoite and cordylite is presented, together with their chemical composition, rare earth element (REE) patterns, and syntaxial intergrowth relationships. These syntaxial textures, investigated by scanning and electron microprobe techniques, are interpreted in terms of the cooling history during the late-stage crystallization of the carbonatite magma or possible later events. The REE distribution patterns of the Ba-REE fluorocarbonate minerals in the dyke are similar to those of the corresponding minerals in the dolomite marble that hosts the giant REE-Nb-Fe ore body at Bayan Obo, providing evidence that the two may be cogenetic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007100070004
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  • 5
    Electronic Resource
    Electronic Resource
    Identification of a new trace 114R SiC by HREM (1999)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 55 (1999), S. 255-257 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Using electron diffraction patterns and high-resolution electron microscopy (HREM), a trace 114R SiC in commercial α-SiC powder (mainly 6H SiC according to X-ray diffraction) has been discovered. In a hexagonal unit cell its stacking sequence is [(33)4(34)2]3, the periodicity along the c axis is 286.14 Å and a = b = 3.073 Å. 114R belongs to the structure series of (33)〈inf/〉n34(33)〈inf/〉m34 predicted theoretically by Pandey & Krishna [Mater. Sci. Eng. (1975), 20, 243–249] on the basis of the faulted matrix model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768198011987
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  • 6
    Electronic Resource
    Electronic Resource
    A transmission electron microscopy study of phase separation and crystal nucleation in glasses containing Fe2O3 or P2O5 and Fe2O3 (1998)
    Springer
    Journal of materials science 17 (1998), S. 429-431 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006503705350
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  • 7
    Electronic Resource
    Electronic Resource
    EDTA Extraction of Heavy Metals from Different Soil Fractions and Synthetic Soils (1999)
    Springer
    Water, air & soil pollution 109 (1999), S. 219-236 
    Details
    ISSN: 1573-2932
    Keywords: chelating agents ; contaminated soils ; EDTAextraction ; soil remediation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A laboratory-prepared contaminated soil was partitioned into four fractions, namely carbonate, Fe/Mn oxides, organic matter and clay mineral, according to the form in which the heavy metal bound with soil constituents. Individual contaminated soil fractions and synthetic soils were prepared for the study of soil extraction using ethylenediaminetetraacetic acid (EDTA). The effect of contact time and EDTA concentration were evaluated for both individual soil fractions and synthetic soils. The extraction reached equilibrium rapidly, after about 30 min. A 0.01 M EDTA solution was less effective than a 0.05 M or a 0.10 M EDTA. EDTA was proved to be effective for metal removal from the four individual soil fractions and synthetic soils. In general, approximately 90% of metals were removed from synthetic soils by 0.10 M EDTA. EDTA extraction of Pb from a contaminated carbonate fraction was thought to be affected by the formation of lead carbonates. A simple equation based on the sum of the released heavy metal from the individual components is used to check if there are interactions among the different soil components when mixed. The estimated values agreed well with the experimentally measured results only for the 0.10 M EDTA system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005000520321
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of transmembrane Ca2+ gradient on the coupling of β-adrenergic receptors and adenylyl cyclase (1996)
    Springer
    Bioscience reports 16 (1996), S. 327-341 
    Details
    ISSN: 1573-4935
    Keywords: Transmembrane Ca2+ gradient ; β-adrenergic receptors (β-AR) ; stimulatory GTP-binding protein (GS) ; adenylyl cyclase ; lipid fluidity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In order to investigate the effect of transmembrane Ca2+ gradient on Gs mediated coupling of β-AR and adenylyl cyclase, β-AR from duck erythrocytes and Gs and adenylyl cyclase from bovine brain cortices were co-reconstituted into asolectin liposomes with different transmembrane Ca2+ gradient. These proteoliposomes were proven to be impermeable to water-soluble substances. The results obtained indicate that a physiological transmembrane Ca2− gradient (1000-fold) is essential for higher stimulation of adenylyl cyclase by hormone-activated β-AR via coupling to Gs and can be further enhanced by the decrease of such Ca2+ gradient within certain range (100 fold) following Ca2+ influx into cells during signal transduction. Fluorescence polarization of DPH revealed that transmembrane Ca2+ gradient modulates adenylyl cyclase and its stimulation by hormones through mediating a change in lipid fluidity. Correspondent conformational changes of β-AR were also detected from the fluorescence spectra and quenching of Acrylodan-labelled β-AR in those proteoliposomes. It is suggested that a proper transmembrane Ca2+ gradient is essential for the optimal fluidity of the phospholipid bilayer in the proteoliposomes, which favors the formation of a suitable conformation of the reconstituted β-AR and thus promotes the stimulation of adenylyl cyclase activities by hormone-activated β-AR via Gs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01855016
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  • 9
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    Oxygen-stabilized glass formation in Zr80Pt20 melt-spun ribbons (2003)
    American Institute of Physics
    Details
    Publication Date: 2003-07-07
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics
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  • 10
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    Superconducting nanowire single-photon detectors at a wavelength of 940 nm (2015)
    American Institute of Physics
    Details
    Publication Date: 2015-06-01
    Electronic ISSN: 2158-3226
    Topics: Physics
    Published by American Institute of Physics
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