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  • Springer  (78)
  • American Physical Society (APS)  (14)
  • American Chemical Society  (10)
  • Nature Publishing Group
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  • 1
    Electronic Resource
    Electronic Resource
    Additions and Corrections - Azamorphinan and Related Compounds. III. Syntheses of 3-Hydroxy-N-substituted-9-azamorphinans. (1971)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 14 (1971), S. 1251-1251 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00294a601
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of sodium dodecyl sulfate on the volume phase transition of N-isopropylacrylamide gel (1992)
    s.l. : American Chemical Society
    Langmuir 8 (1992), S. 1030-1031 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00039a048
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  • 3
    Electronic Resource
    Electronic Resource
    Stabilization of a globular polymer in water by addition of surfactant (1993)
    s.l. : American Chemical Society
    Langmuir 9 (1993), S. 1162-1163 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00028a049
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  • 4
    Electronic Resource
    Electronic Resource
    Electronic origin of molybdenum-95 NMR chemical shifts in molybdenum complexes. Relationship between excitation energy and chemical shift (1990)
    s.l. : American Chemical Society
    Inorganic chemistry 29 (1990), S. 3095-3097 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00342a008
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  • 5
    Electronic Resource
    Electronic Resource
    Soluble Collagen in Bone (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 758-759 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To clarify the mechanism of ossification, we carried out experiments on the extraction and refinement of bone collagen. The first problem of the extraction of bone collagen is to eliminate the bone mineral which occupies the major part of bone. Some attempts have been made to solve this problem and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/192758a0
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  • 6
    Electronic Resource
    Electronic Resource
    Wechselwirkung von Polyvinylpyrrolidon mit Mischtensiden (1971)
    Springer
    Colloid & polymer science 249 (1971), S. 1096-1100 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary The interaction of polyvinylpyrrolidone (PVP) and mixture of two surfactants in aqueous system was studied viscometrically on the following five typical combinations of surfactants in three categories, in which in its single solution the first surfactant in each pair interacts with PVP strongly while the second component, except for guanidinium dodecylsulfate, is not at all or only weakly interacting. 1. Different surfactant ions with the same counterions: sodium dodecylsulfate (NaDS) and sodium decylsulfate. 2. The same surfactant ions with different counterions: NaDS and tetrabutylammonium dodecylsulfate; NaDS and guanidinium dodecylsulfate; dodecylammonium thiocyanate (DASCN) and dodecylammonium chloride. 3. An ionic and a nonionic surfactant: NaDS or DASCN and polyoxyethylene dodecylether. These combinations produce varieties of interaction with PVP, and the results were discussed on the basis of the surfactant-surfactant and polymer-surfactants relations and of the counterion distribution around the polymer-surfactants complex.
    Notes: Zusammenfassung Die Wechselwirkung zwischen Polyvinylpyrrolidon (PVP) und dem Gemisch zweier Tensiden im wässerigen System wurde viskosimetrisch bei folgenden fünf typischen Paaren der Tenside in drei Kategorien untersucht, in welchen in jeder einzelnen Lösung das erstgenannte Tensid der Kombination eine starke Wechselwirkung mit PVP aufweist und das zweite dagegen, außer Guanidinium-Dodecylsulfat, gar keine oder nur eine schwache ist. 1. Verschiedene Tensidionen mit gleichen Gegenionen: Natrium-Dodecylsulfat (NaDS) und Natrium-Decylsulfat. 2. Gleiche Tensidionen mit verschiedenen Gegenionen: NaDS und Tetrabutylammonium-Dodecylsulfat; NaDS und Guandinium-Dodecylsulfat; Dodecylammonium-Thiocyanat (DASCN) und Dodecylammonium-Chlorid. 3. Ein ionisches und ein nichtionisches Tensid: NaDS oder DASCN und Polyoxyäthylendodecyläther. Die Kombinationen geben mit PVP mannigfaltige Wechselwirkungen, und die Neigungen wurden aus den Beziehungen von Tensid-Tensid und Polymer-Tensid und aus der Gegenionverteilung um den Polymer-Tensidkomplex diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01556978
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of drawing on molecular motions in polycarbonate (1975)
    Springer
    Colloid & polymer science 253 (1975), S. 480-484 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Der Effekt der Verstreckung auf die molekularen Bewegungen im amorphen Polycarbonat wurde mit dielektrischen Messungen studiert. Folgende Schlüsse lassen sich ziehen: 1. Ein Strukturmodell für das verstreckte Polycarbonat läßt sich aus den Daten für die Dichte, die Doppelbrechung und die Höhe des endothermen Piks naheT g erzwielen. Die molekuraren Ketten des Polycarbonate werden durch die Streckung dicht gepakt. Kein Prozeß ählich demjenigen in Polyänthylenterephthalat tritt in Polycarbonat auf. 2. Die Maximallage für ihre Absorption Polycarbonat verändert sich mit dem Streckenverhältnis. Sie sinkt zuerst und steigt dann in der Nähe der Streckgrenze an. Dieses Verhalten kann mittrels der Relaxations-theorie der lokalen Moden und des hier vorgeschlagenen Strukturmodells erkäkt werden. 3. Das Verhalten des Polycarbonats beim Verstrecken wird mit demjenigen des Polyänthylenterephthalats verglichen und diskutiert.
    Notes: Summary The effect of drawing on the molecular motions in amorphous polycarbonate is studied by the dielectric relaxation with following conclusions. (1) A structural model for the drawn polycarbonate is obtained from the data of the density, the birefringence and the height of the endothermic peak atT g . The molecular chains of polycarbonate are supposed to be oriented to the draw direction and packed closely by drawing. No process similar to that in polyethylene terephthalate occurs in polycarbonate. (2) The rate of the torsional oscillation of the frozen chains in the glassy polycarbonate varies with the draw ratio. It decreases at first and then increases near the severance. This behavior can be explained by the local mode relaxation theory and the structural model proposed here. (3) The behavior of polycarbonate by drawing was compared with that of polyethylene terephtalate and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01491826
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  • 8
    Electronic Resource
    Electronic Resource
    Flocculation of dispersed systems stabilized by nonionic surfactant (1977)
    Springer
    Colloid & polymer science 255 (1977), S. 1122-1124 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Wässerige Suspensionen und Emulsionen, die durch nichtionogene Tenside vorn Polyoxyäthylentyp allein stabilisiert sind, werden durch Zusatz polymerer Säuren (z. B. Polyakrylsäure) und Elektrolyten (Säure und neutrale Salze polyvalenter Kationen) geflockt. Die destabilisierende Wirkung der polymeren Säuren wird der Wechselwirkung zwischen der Polymersäure und dem nichtionogenen Tensid zugeschrieben. Einige Beispiele für die Flockungsreaktion werden mitgeteilt.
    Notes: Summary Aqueous suspensions and emulsions stabilized solely by nonionic surfactant of the polyoxyethylene type are flocculated by adding polymeric acid (for example, poly-acrylic acid) and electrolyte (acid and neutral salts of polyvalent cations). This destabilization effect of polymeric acids is ascribed to the interaction between the polyacid and nonionic surfactant on the colloid particles. Some examples of the flocculation reaction are shown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01549900
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  • 9
    Electronic Resource
    Electronic Resource
    Differential role of metallothionein on Zn, Cd and Cu accumulation in hepatic cytosol of rats (1997)
    Springer
    Cellular and molecular life sciences 53 (1997), S. 267-270 
    Details
    ISSN: 1420-9071
    Keywords: Key words. Metallothionein; zinc; cadmium; copper; rat liver.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. To examine the role of metallothionein (MT) on heavy metal accumulation in hepatic cytosol of rats, this study was carried out to determine the relative Zn, Cd and Cu-binding capacities of MT in hepatic cytosol of Zn, Cd and Cu-injected rats, respectively. The heavy metal contents were detected in the liver and cytosol in the following proportions: 65.2–74.8% of the Zn content, 61.9–65.6% of the Cu content, and approx. 65% of the Cd content. Each rat was given a single intraperitoneal injection of saline, ZnSO4 (1, 5, 10 and 20 mg Zn/kg b.w.), CuSO4 (2, 4 and 6 mg Cu/kg b.w.) or CdCl2 (1, 2 and 3 mg Cd/kg b.w.). The amounts of the increased Zn and Cu were attributable to MT and high molecular weight proteins, while most of the increased Cd was attributable to MT. There was a close relationship between heavy metal content of the cytosol and MT in all heavy metal-injected rats. Our data demonstrated that approx. 60% of the increased Zn or Cu in the hepatic cytosol of Zn or Cu-injected rats was bound to MT, while 83% of the increased Cd in hepatic cytosol of Cd-injected rats was bound to MT. Therefore the order of relative binding capacity in vivo of MT determined for several metals (Cd 〉 Zn 〉 Cu) did not correlate with the published in vitro order of affinity to MT, Cu 〉 Cd 〉 Zn. These results suggested that the role of MT in Zn or Cu accumulation in the liver of Zn or Cu-injected rats was different from that of MT in Cd accumulation in the liver of Cd-injected rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00000602
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  • 10
    Electronic Resource
    Electronic Resource
    Lead Content in Human Scalp Hair of Rural and Urban Residents in Taiwan (1996)
    Springer
    Bulletin of environmental contamination and toxicology 57 (1996), S. 952 -956 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900282
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