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  • Wiley-Blackwell  (71)
  • American Association for the Advancement of Science (AAAS)
  • 1
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    The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes (2019)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2019
    Description: 〈p〉The near-Earth carbonaceous asteroid 162173 Ryugu is thought to have been produced from a parent body that contained water ice and organic molecules. The Hayabusa2 spacecraft has obtained global multi-color images of Ryugu. Geomorphological features present include a circum-equatorial ridge, east/west dichotomy, high boulder abundances across the entire surface, and impact craters. Age estimates from the craters indicate a resurfacing age of 〈f〉〈/f〉 years for the top 1-meter layer. Ryugu is among the darkest known bodies in the Solar System. The high abundance and spectral properties of boulders are consistent with moderately dehydrated materials, analogous to thermally metamorphosed meteorites found on Earth. The general uniformity in color across Ryugu’s surface supports partial dehydration due to internal heating of the asteroid’s parent body.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Detailed images of asteroid 25143 Itokawa from Hayabusa (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-03
    Description: Rendezvous of the Japanese spacecraft Hayabusa with the near-Earth asteroid 25143 Itokawa took place during the interval September through November 2005. The onboard camera imaged the solid surface of this tiny asteroid (535 meters by 294 meters by 209 meters) with a spatial resolution of 70 centimeters per pixel, revealing diverse surface morphologies. Unlike previously explored asteroids, the surface of Itokawa reveals both rough and smooth terrains. Craters generally show unclear morphologies. Numerous boulders on Itokawa's surface suggest a rubble-pile structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saito, J -- Miyamoto, H -- Nakamura, R -- Ishiguro, M -- Michikami, T -- Nakamura, A M -- Demura, H -- Sasaki, S -- Hirata, N -- Honda, C -- Yamamoto, A -- Yokota, Y -- Fuse, T -- Yoshida, F -- Tholen, D J -- Gaskell, R W -- Hashimoto, T -- Kubota, T -- Higuchi, Y -- Nakamura, T -- Smith, P -- Hiraoka, K -- Honda, T -- Kobayashi, S -- Furuya, M -- Matsumoto, N -- Nemoto, E -- Yukishita, A -- Kitazato, K -- Dermawan, B -- Sogame, A -- Terazono, J -- Shinohara, C -- Akiyama, H -- New York, N.Y. -- Science. 2006 Jun 2;312(5778):1341-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Hayabusa Project Team, Institute of Space and Astronautical Sciences (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan. saitoj@planeta.sci.isas.jaxa.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16741110" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    Description: 〈p〉The near-Earth carbonaceous asteroid 162173 Ryugu is thought to have been produced from a parent body that contained water ice and organic molecules. The Hayabusa2 spacecraft has obtained global multicolor images of Ryugu. Geomorphological features present include a circum-equatorial ridge, east-west dichotomy, high boulder abundances across the entire surface, and impact craters. Age estimates from the craters indicate a resurfacing age of 〈f〉〈/f〉 years for the top 1-meter layer. Ryugu is among the darkest known bodies in the Solar System. The high abundance and spectral properties of boulders are consistent with moderately dehydrated materials, analogous to thermally metamorphosed meteorites found on Earth. The general uniformity in color across Ryugu’s surface supports partial dehydration due to internal heating of the asteroid’s parent body.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
    Electronic Resource
    Electronic Resource
    Temperature dependence of nuclear magnetic resonance absorption in coal (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 6 (1962), S. 94-97 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The proton magnetic resonance in the vitrain of Yūbari caking coal and its residue of pyridine extraction has been studied over the range 90 to 423°K. At lower temperature the absorption line consists of a broad component. At higher temperature this component begins to decrease rapidly in the line width and resolves into two components. This rapid narrowing of the absorption line width suggests a glass transition attributed to the molecular motion in coal. The variation of the second moment of the absorption line with temperature reflects the line width variation. From these results some information on the molecular motion and arrangement in coal have been obtained.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1962.070061910
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  • 5
    Electronic Resource
    Electronic Resource
    Die Volumenänderung von Gußeisen beim Erstarren, nebst einer Kritik des Doppeldiagramms des Systemes Eisen-Kohlenstoff (1926)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 154 (1926), S. 238-252 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19261540123
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  • 6
    Electronic Resource
    Electronic Resource
    The differential refractive index increments of statistical styrene/acrylonitrile/methyl methacrylate terpolymers (1972)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 25 (1972), S. 163-169 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Das Brechungsindexinkrement von acht verschieden zusammengesetzten Terpolymeren aus Styrol, Acrylnitril und Methylmethacrylat wurde in Dimethylfoirmamid und in Butanon bestimmt. Aus der infrarotspektroskopisch ermittelten Zusammensetzung der Copolymeren und den Brechungsinkrementen der Homopolymeren wurden die Brechungsinkremente der Terpolymeren berechnet. Das ptrrtielle azeotrope Terpolymere besitzt ein konstantes Brechungsinkrement während der Terpolymerisation, während die aus anderen Monomermischungen erhaltenen Werte sich mit dem Umsatz ändern.
    Notes: The differential refractive index increment was measured for statistical styrene/acrylonitrile/methyl methacrylate terpolymers of eight different compositions in dimethylformamide and in butanone. With the terpolymer composition obtained from infrared absorption and the differential refractive index increments of the homopolymers, the differential refractive index increments of terpolymers are calculated. The partial azeotropic terpolymer gives a constant value in the course of terpolymerization. The differential refractive index increment of a terpolymer synthesized from other monomer feed than the azeotropic composition changes with conversion.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1972.050250115
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  • 7
    Electronic Resource
    Electronic Resource
    The molecular weight dependence of depolarization of scattered light from styrene oligomers in solutions (1979)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 82 (1979), S. 55-62 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Molekulargewichtsabhängigkeit der Depolarisierung wurde für Polystyrol- und Oligostyrollösungen in Butanon gemessen. Drei wesentliche Ergebnisse wurden erhalten: (1)Die Depolarisationen ϱu der Polystyrol- und Oligostyrollösungen in Butanon zeigen ein Minimum bei einer charakteristischen Konzentration im Gegensatz zu einer Styrollösung in Butanon.(2)Das Depolarisationsminimum fällt mit steigendem Polymerisationsgrad des Oligostyrols und erreicht einen konstanten Wert für Polystyrollösungen von ϱu = 0,0148. In den Oligostyrollösungen stimmt die Depolarisation mit einer theoretischen Berechnung überein, während in Polystyrollösungen eine Beeinflussung durch intra- und intermolekulare Wechselwirkung zu beobachten ist.(3)Die der minimalen Depolarisation zuzuordnende Konzentration C* fällt mit P-½ für Polystyrollösungen und fällt mit P- 1 für Oligostyrollösungen. Dies hängt mit der von einer Gauß-Verteilung abweichenden Verteilung der Oligomersegmente zusammen.
    Notes: The molecular weight dependence of depolarization was measured for polystyrene and styrene oligomer solutions in butanone. Three evident results were obtained: (i)the depolarizations ϱu of polystyrene and styrene oligomer solutions in butanone show a minimum value at a characteristic concentration inspite of that the depolarization of a styrene monomer mixture with butanone shows no minimum value.(ii)the minimum value of depolarization ϱu* decreases with the degree of polymerization, P, for styrene oligomer solutions and reaches a constant value for polystyrene solutions, that is ϱu* = 0.0148. In oligomer solutions the depolarization conforms to the theoretical equation, but in polystyrene solutions the depolarization is affected by both intra-and intermolecular interferences.(iii)the characteristic concentration C*, corresponding to the minimum depolarization ϱu*, decreases with P-1/2 for polystyrene solutions and decreases with P-1 for styrene oligomer solutions. This fact is concerned with the deviation from a Gaussian distribution of oligomer segments.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1979.050820105
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  • 8
    Electronic Resource
    Electronic Resource
    The relationship between the molecular weight and the critical miscibility composition of a solvent-nonsolvent-terpolymer system (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 48 (1975), S. 175-183 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Eine theoretische Gleichung zur Beschreibung der mittels Lichtsteruung gemessenen Abhängigkeit des scheinbaren Molekulargewichts vom Lösungsmittel wurde im Hinblick auf die Heterogenität der Zusammensetzung abgeleitet. Terpolymere mit einem partiellen Azeotrop wurden aus Styrol, Acrylnitril und Methylmethacrylat hergestellt. Die Molenbrüche betrugen in der angegebenen Reihenfolge 0,55; 0, 16; 0,29. Das mittels Lichtstreuung bestimmte Molekulargewicht erwies sich als vom eingesetzten Lösungsmittel unabhängig. Daraus wurde auf eine homogene Zusammensetzung des Terpolymeren geschlossen. Das Verhältnis zwischen dem Molekulargewicht des Terpolymeren und dem Volumenbruch des Fällungsmittels γ in dem Lösungsmittelgemisch am Fällungspunkt in einem Butanon-Methanol-Terpolymer-System folgte, wie experimentelle Untersuchungen zeigten, der Gleichung worin γ0 und b′ Konstanten bedeuten. Zwischen dem Molekulargewicht und der Viskositatszahl [η] des Terpolymeren gelten die folgenden Beziehungen bei 35°C: und
    Notes: A theoretical equation for the dependence of the apparent molecular weight measured by light scattering on the solvent used has been derived with regard to the composition heterogeneity. Terpolymers corresponding to a partial azeotrope were synthesized from styrene, acrylonitrile, and methyl methacrylate with mole fractions of 0.55, 0.16, and 0.29, respectively. The molecular weight measured by light scattering was found to be independent of the solvent used. Therefore the terpolymer was concluded to be apparently homogeneous in composition. The relationship between the molecular weight M of the terpolymer and the volume fraction of the nonsolvent γ in the solvent mixture at the precipitation point in a butanone-methanol-terpolymer system was experimentally proved to follow the equation where γ0 and b′ are constants. Between the molecular weight and the limiting viscosity number [η] of the terpolymer the following relationships are valid at 35°C: and
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050480111
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  • 9
    Electronic Resource
    Electronic Resource
    Characterization of prostaglandin F2α receptor of mouse 3T3 fibroblasts and its functional expression in Xenopus laevis oocytes (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 155 (1993), S. 257-264 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Prostaglandin (PG) F2α increased [3H]thymidine incorporation into quiescent NIH 3T3 cells, stimulated phosphoinositide breakdown, and raised intracellular Ca2+ concentration ([Ca2+]i) in a dose-dependent manner with ED50 values of 2.0 × 10-8 M, 4.6 × 10-8 M, and 7.5 × 10-8 M, respectively. The increase in [3H]thymidine incorporation with PGF2α was additive with that seen with epidermal growth factor (EGF) or insulin. The peak [Ca2+]i increase with PGF2α was still obvious in the absence of extracellular Ca2+ and was insensitive to islet activating protein (IAP) pretreatment. Membranes prepared from NIH 3T3 cells exhibited a specific binding for PGF2α, which was sensitive to GTPγS but not sensitive to IAP pretreatment. Xenopus laevis oocytes injected with NIH 3T3 cell mRNA between 18S and 28S rRNA fractionated by sucrose gradient, expressed a PGF2α-specific Cl- current when examined by voltage clamp. This Cl- current was also insensitive to IAP pretreatment and not affected by extracellular Ca2+ concentration ([Ca2+]o). These results indicate 1) that the NIH 3T3 cells expressed a specific PGF2α receptor which is linked to phosphoinositide-specific phospholipase C (PLC) activation and to mobilization of Ca2+ via an IAP-insensitive G-proteins(s), 2) that this PGF2α receptor may play an active role in the proliferation of NIH 3T3 cells, and 3) that this PGF2α receptor can be expressed in the oocyte system. © 1993 Wiley-Liss, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041550206
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  • 10
    Electronic Resource
    Electronic Resource
    Specific volume of molten polychlorotrifluoroethylene (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 20 (1956), S. 587-590 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120209621
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