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  • Springer  (2,485)
  • Institute of Physics  (462)
  • 1980-1984
  • 1965-1969  (2,947)
  • 1945-1949
  • 1969  (2,947)
  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 25 (1969), S. 1301-1303 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die Oberflächen der Gelenke von Mensch, Kaninchen, Schwein und Ratte zeigen elektronenmikroskopisch feine zottenartige Bildungen. Daneben finden sich auch leichte Vertiefungen. Diese Bildungen sind für eine gleichmässige Gelenkbewegung von Wichtigkeit.
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  • 12
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary A study is made of an airborne magnetometer profile from 130 km offshore Mangalore to 60 km offshore Madras approximately along the 13th degree parallel obtained in May 1967 by the National Geophysical Research Institute. The total length of the profile is about 770 km. A Bouguer gravity anomaly profile along same traverse over the land section has been also studied along with the magnetic profile. Eight major anomalies on the magnetic profile were chosen for depth calculations. Depths of the magnetic bodies were determined by elementary approximation method ofSmellie. It is found that in most of the cases the sources of the magnetic anomalies lie between 5 to 20 km (approximately). Only one anomaly yielded a depth of 2.7 km for its source. These anomalies are accounted for in terms of possible basic intrusions, faults, zones of weakness and ridge-like structures in deeper Crustal levels.
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 56 (1969), S. 324-324 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Archive for rational mechanics and analysis 33 (1969), S. 116-138 
    ISSN: 1432-0673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 57 (1969), S. 206-210 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Dünnschichtplatten (Polygram CEL 300) ergeben gute Trennungen der üblichen Poly- und Metaphosphate und gewisser anderer Salze sauerstoffhältiger Phosphorsäuren innerhalb 1 Stunde bei Einsatz der handelsüblichen Gemische. Ein saures und ein basisches Lösungsmittel wurden angewendet.
    Notes: Summary Prepared thin-layer plates (Polygram CEL 300) give sufficiently good separations of the common poly- and meta-phosphates and certain other oxyphosphorus salts in 1 hour for the more likely mixtures to be identified; an acidic and a basic solvent are used.
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Antonie van Leeuwenhoek 35 (1969), S. 84-96 
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract When a low number ofAzotobacter vinelandii 12837 log phase vegetative cells (2 × 103 cells/ml) were removed from the culture liquid to water of the same temperature, a rapid loss of viability occurred depending on the procedure of washing and suspending. Death was not accompanied by visible lysis and the rate of loss of viability was less at lower temperatures, and in the presence of salts or cell-free filtrates from heavy cell suspensions in water. The die-off was erratic at increased cell concentrations and was accelerated by utilizable energy sources. Cells standing in a favorable ionic solution (0.1% NaCl) do not lose their viability while cells washed by a series of centrifugations with the same ionic solution show a progressive loss of viability with each washing. Phospholipids were found to leach from the cells into the aqueous solutions. Such cell death suggests instability of the cell membrane and the loss of osmotic or ionic control in the cells.
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  • 17
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung 3,5-Dijod-3′-chlor-4′-(p-chlorphenoxy) salicylanilid wird als ein neues Mittel gegen den Viehleberegel (Fasciola hepatica) beschrieben. In Schafen ergab eine Dosis von 5 mg/kg gegen geschlechtsreife Tiere und eine solche von 12,5 mg/kg gegen junge Leberegel eine hohe Wirksamkeit. Bei schwerem, akutem Leberegelbefall blieb sogar eine Dosis von 60 mg/kg ohne toxische Anzeichen. Ebenso wurde eine relativ hohe Wirksamkeit und eine gute Verträglichkeit bei der Behandlung von Leberegelinfektionen in Rindern festgestellt.
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical chemistry accounts 13 (1969), S. 365-380 
    ISSN: 1432-2234
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Nichtempirische SCF-MO-Rechnungen mit Gaußfunktionen (GF) für den Übergang des planaren und des unplanaren Cyclopropylkations zum Allylkation wurden vorgenommen. Mit einem Basissatz von 37 GF wurden 34 Rechnungen für 3 disrotatorische und 2 conrotatorische Arten des Übergangs durchgeführt. Um den Einfluß einer größeren Zahl von s-Funktionen am Kohlenstoff zu untersuchen, wurde auch mit einem Basissatz von 43 GF gerechnet. Die Analyse der Energieterme gibt wenig Anlaß zu der Annahme, daß die Art der Ringöffnung nur von der Symmetrie des obersten besetzten Orbitals abhängt.
    Abstract: Résumé Des calculs ab-initio en orbitales gaussiennes ont été effectués sur la transformation électrocyclique de cations cyclopropyliques plans et non plans en cations allyliques. Trois modes disrotatoires et deux modes conrotatoires ont été considérés en utilisant un total de 37 orbitales gaussiennes. Trente quatre calculs ont été effectués dans cette base; l'effet de l'augmentation de la base a été étudié en effectuant d'autres calculs avec une base de 43 orbitales gaussiennes. Une analyse détaillée des termes d'énergie impliqués montre qu'il y a peu de justification théorique pour le postulat selon lequel le mode d'ouverture du cycle dépend seulement de la symétrie de la plus haute orbitale occupée.
    Notes: Abstract Non-empirical molecular quantum chemical calculations have been performed on the electrocyclic transformation of planar and non-planar cyclopropyl cations, to allyl cations, in the LCAO-MO-SCF framework using gaussian type functions as atomic orbitals. Employing a total of 37 GTF, 3 disrotatory and 2 conrotatory modes of transformation have been considered. A total of 34 calculations have been carried out using this basis set; and to investigate the effect of increasing the s basis set on carbon further calculations have been carried out using a basis set of 43 GTF. A detailed analysis of the energy terms involved show that there is little theoretical justification for the postulate that the mode of ring opening depends only on the symmetries of the highest occupied orbitals.
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 5 (1969), S. 283-288 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The rich spectrum of the slow nova RR Telescopii contains several strong unidentified lines. The possibility is re-examined that some of these lines are due to forbidden transitions of [Niiv]. Success is partial but the new identifications include four strong lines (λλ5363, 5288, 5060, 5042) from the multiplet a4F-a2G.
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 4 (1969), S. 672-680 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Transmission electron microscopy has been used to study the structure of films of CdS evaporatedin vacua in the 10−5 torr range on to (100) cleavage faces and cut and polished (110) and (111) faces of NaCl, and also on to (111) cleavage faces of BaF2, (111) substrate faces were found to produce wurtzite structure (hexagonal) films with great structural perfection over wider ranges of epitaxial growth temperature than (100) substrate faces. The (100) and (110) substrates produced sphalerite structure (cubic) films. Electron beam evaporation and generally clean growth conditions were found to produce good quality films at low substrate temperatures. The films were in general free of any included grains and the diffraction patterns free of satellite spots. 〈111〉 or 〈10¯10〉 streaking was present in the diffraction patterns, however, except in the case of films grown on BaF2 above 170° C, and on NaCl (111) above 250° C. These films were also free of planar defects and only contained of the order of 1010 dislocations per cm2.
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