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  • 1965-1969  (13)
  • 1955-1959  (3)
  • 1910-1914  (2)
  • 1890-1899  (4)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 4 (1968), S. 0 
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Alpha waves in the EEG occur with a time delay in the anteroposterior direction. The hypothesis that this time delay is associated with level of arousal was tested. Alpha time delay was determined from covariance functions and level of arousal from palmar skin conductance levels. The results support the hypothesis.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of regional science 9 (1969), S. 0 
    ISSN: 1467-9787
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Economics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 681-682 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Experimentally, however, little evidence has been accumulated which substantiates the occurrence of relaxation effects in electrophoresis. von Stackelberg et al.5 examined the mobility of some emulsion droplets in the xa range 10-2,000 and obtained qualitative evidence for relaxation. An indirect ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 50 (1894), S. 499-499 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Is Barrhead, Renfrewshire, on Friday (14th), at 9.15 p.m., I witnessed the finest aurora I have observed for years. The luminous arch extended from south-west to north-east, and shortly reached the zenith. The rapid fluctuations in the streamers were remarkable. There were no coloured bands. ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 50 (1894), S. 297-297 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] REFERRING to “Delta's” note, I may say that in the fine weather which we had here in April, the small tortoise-shell butterfly appeared more numerously than ever I had witnessed it at that season, or indeed at any time. I recollect counting a dozen at one time on a small bush of Andromeda ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1105-1106 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] An attempt has been made to throw some light on the mechanism of the regulation of sodium uptake in the freshwater crayfish, Astacus pallipes. In particular, the influence of variations in the internal sodium content and of the external sodium concentration on the rate of uptake, has been studied. ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 906-907 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have recently carried out an amino-acid analysis of the egg-stalk of the green lace-wing fly (Chrysopa flava). Our attention was directed to this interesting protein fibre by Drs. K. D. Parker and K. M. Hudall, of the Department of Biomolecular Structure of the University of Leeds, who kindly ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 861-861 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A detailed analysis2 of this chymotryptic precipitate has established its formula as Gly.29 Ala.20 Ser.9 Tyr.1, and the C-terminal position has been shown to be occupied mainly by tyrosine3. We have recently investigated the sequence of the amino-acids in the chymotryptic precipitate. This ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 51 (1894), S. 107-107 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] STEPPING out of doors to-night, November 23, at 7.30, I was surprised to see the whole northern sky filled with luminous mist, so clear that our shadows were dimly observed on the shining surface of the wet highway. There were few tremulous motions, but the light clouds advanced southwards in ...
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 215 (1967), S. 161-166 
    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 Die Methoden zur Präparation monodisperser Polystyrol-Latices werden beschrieben, wobei als Initiator Wasserstoffsuperoxid und als Emulgator Natriumdodecanoat, Natriumdodecyl-Hydrogenphosphat und Dodecylamin-Hydrochlorid Verwendung fanden. Die erhaltenen Latices haben einen kleinen Koeffizienten der Variation des Teilchen-Durchmessers, bestimmt mit Elektronenmikroskopie. Die Partikelgröße schwankte innerhalb 500–5000 Å. Die Teilchen-Durchmesser aus höheren Ordnungen des Tyndall-Spektrums stehen in vernünftigerÜbereinstimmung mit denen aus elektronenmikroskopischen Untersuchungen. Die Bestimmung der Oberflächengröße eines Latex durch Krypton-Adsorption gab eine Oberfläche ebenfalls in guter Übereinstimmung mit der elektronenmikroskopischen Beobachtung.
    Notes: Summary A description is given of the methods used for the preparation of monodisperse polystyrene latices using hydrogen peroxide as an initiator and sodium dodecanoate, sodium dodecyl hydrogen phosphate and dodecylamine hydrochloride as surface active agents for the emulsification of styrene. The latices prepared had a small coefficient of variation on particle diameter as measured by electron microscopy. The range of particle sizes investigated was from 500–5000 Å. The diameters of the particles determined, where possible, from Higher Order Tyndall Spectra were in reasonable agreement with those determined by electron microscopy. Determination of the surface area of one latex by krypton adsorption gave a surface area in close agreement with that obtained from electron microscope observations.
    Type of Medium: Electronic Resource
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