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  • 1975-1979
  • 1960-1964  (12,861)
  • 1961  (12,861)
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  • 1975-1979
  • 1960-1964  (12,861)
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  • 1
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 43-43 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (1) Bailey suggests two explanations of how the solar charge can be produced and maintained. The first derives from the assumption that neutrinos carry a positive charge in the range between 10~15 and 10-19 times the electron charge. Now, since the conductivity of the solar material is of the order ...
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  • 2
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    Nature 189 (1961), S. 45-47 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During the Permian period, the Earth's magnetic field was remarkably steady. Palaeomagnetic studies of western European rocks of this age have a high measure of internal consistency, and these western European data, together with the results from a recent palaeomagnetic study by Gusev5 of 1,600 ...
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  • 3
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 320-321 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. In vivo deformations of erythroeytes of anaesthetized rabbits after intramuscular injection of Vipera palestinae venom Fig. 2. In vivo deformations of erythrocytes of unanaesthetized rats after intramuscular injection of Vipera palestinae venom Sublethal and lethal doses of venom were ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 323-324 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We find this observation particularly interesting, since we believe that other cases of tyrosyluria, detectable by chromatographic methods though probably mostly within the normal range of less-specific analyses, occur frequently in ill subjects. We have previously described an increased excretion ...
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  • 5
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 322-323 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Paterson7 has recently shown that allergic en cephalomyelitis may be transferred in rats using lymph node cells from donors injected with nervous tissue-adjuvant. In this work, complement-fixing anti-brain antibodies appeared in the sera of many recipients, whether or not they developed allergic ...
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  • 6
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 324-324 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Blood Products Laboratory, Lister Institute, provided us with 70 bottles containing about 120 litres of pooled plasma unfit for transfusion because of bacterial contamination. This had been prepared from whole blood collected between Novem ber 1958 and March 1959, except for about 2 litres ...
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  • 7
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 54-55 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In order to increase the exchange-rate and to reduce the amount of tritium required, several techniques have been developed which employ an external energy source for promoting the labelling process : electrical discharges2'5, y-rays6, microwaves5 have been used. Recently7 the tritiation of two ...
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  • 8
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 55-56 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In an attempt to define the metabolic pathway of labelled precursors of deoxyribonucleic acid using either phosphorus-32 or tritium compounds, it became apparent that the soluble intermediates were, in fact, readily lost during the conventional autoradiographic procedures. The use of vacuum drying, ...
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  • 9
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 327-328 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In preliminary tests, gibberellin concentrations of up to 100 p.p.m. had little effect on breaking dormancy of recently harvested Solanum seed, but germination was stimulated by concentrations of 1,000-4,000 p.p.m. To confirm this result, dry seeds of several Solanum species and species hybrids ...
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  • 10
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    Nature 189 (1961), S. 65-65 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. The ions specified in the left column are arranged in order of hydrated ion size (derived from limiting ion conductances (ref. 2) and expressed relative to K+ = 1-00). The black bands indicate ions that are effective in changing the inhibitory postsynaptic potential into a depolarizing ...
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  • 11
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To verify this supposition, 100 adult male rats were transferred from a natural diet to that of Wilgram7,8, supplemented with vitamin E in the form of an oily preparation from natural sources. Rats of the same age receiving a natural laboratory diet served as control. The functional state of the ...
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  • 12
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 70-71 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Antisera were prepared in rabbits as described in a previous communication1. The sera were lyophilized immediately after preparation and used without inactivation, unless otherwise specified. The methods of incubation and analysis were identical to those described previously1. Table l. EFFECT OF ...
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  • 13
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    Nature 189 (1961), S. 74-74 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Cucumber seeds were germinated on moist filter paper at 25 C, in darkness. After 48 hr. the seed-coat was removed from germinated seeds and they were transplanted in dishes of 1 per cent water agar. The gibberellin was applied in 2-pd. drops of ethanol to the cotyledons. After 2 (Table 1) or 3 ...
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  • 14
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    Nature 189 (1961), S. 76-76 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I advocated developing a classification of yeasts based mainly, not, as they claim, "exclusively", on the biochemistry of yeasts. Roberts and Thorne also imply that I hold the view that because morphological differences reflect chemical ones, morphology is neither interesting nor important. This ...
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  • 15
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 78-79 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has been found that, by suitable control of the concentration of magnesium ions, liquid and solid media can be devised for selection of eoagulase-positive staphylococci in presence of coagulase-negative strains and of many commensal organisms. By calculation from the controlled pH and from the ...
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  • 16
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    Nature 189 (1961), S. 334-336 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have devised a method for determination of myxovirus concentrations, based on the enzymic activity of the virus particles. The action of the virus enzyme-its ability to destroy the haemagglutination-inhibitory capacity of some mucoproteins or to elute the virus from red blood cells-always leads ...
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  • 17
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 337-337 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (Meetings marked with an asterisk * are open to the public) Monday, January 30 UNIVERSITY OF LONDON (in the Assembly Hall, Institute of Educa tion, Malet Street, London, W.C.I), at 5.15 p.m.-Dr. P. F. R Ven-ables: "The Problems of Isolation in Technical Education".* UNIVERSITY OF LONDON ...
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  • 18
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    Nature 189 (1961), S. 336-336 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Autoradiograph of thermal precipitator sample of Aitken nuclei, labelled with thorium B, collected on carbon-coated electron microscope grid. (x 175) Fig. 2. Autoradiograph of simultaneous sample collected on carbon-coated coverslip. (x 175) The technique finally used to test the ...
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  • 19
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    Nature 189 (1961), S. 337-338 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned: BIOCHEMIST (Principal grade), to take charge of the Biochemical Department of the Group Laboratory, Lakin Road, Warwick-The Group Secretary, South Warwickshire Hospital Group, 50 Holly Walk, Leamington Spa ...
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  • 20
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    Nature 189 (1961), S. 169-171 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE presidential address entitled "Science Broadcasting in Sound and Television" delivered by Mr. A. B. Oldfield Davies to the Assembly of Corresponding Societies at the Cardiff meeting of the British Association was certainly realistic, if not also somewhat pessimistic, as to the contribution of ...
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  • 21
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    Nature 189 (1961), S. 173-174 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PROF. COULSON'S Beckly Social Service Lecture is addressed primarily to those who share his Christian faith, for, in accordance with the purpose for which the Lecture was instituted, he seeks to show why the Christian, as such, should be concerned with technology as well as with science, the ...
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  • 22
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    Nature 189 (1961), S. 185-185 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Prof. A. Thom PROF. A. THOM is to retire from the chair of engineering science at the University of Oxford, which he has held since 1945. Prof. Thorn is an engineer with an aeronautical bias, who worked in the Royal Aircraft Establishment, Farnborough, during the whole of the Second World War, ...
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  • 23
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    Nature 189 (1961), S. 185-186 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN an article that appeared in a recent issue of ESSO Magazine (9, No. 4, Autumn, 1960), Sir Hugh Beaver suggests that people in Great Britain can no longer afford to argue about education for management, and that it is no longer realistic to call on "industry to exercise the greatest care in ...
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  • 24
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    [s.l.] : Nature Publishing Group
    Nature 189 (1961), S. 186-186 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING 1959-60 the major concern of the National Association for Mental Health has been with the promotion of World Mental Health Year in the United Kingdom and with preparations for the coming of the Mental Health Act. These are described in the fourteenth annual report (Pp. 55. London: National ...
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  • 25
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    Nature 189 (1961), S. 187-188 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME interesting differential effects of maleic hydrazide on the growth of leaf and stem rusts of wheat are reported by D. J. Samborski et al. (Canad. J. Bot.9 38, 1: 1960). The effect of this substance was investigated, using intact plants supplied with maleic hydrazide through the roots, detached ...
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  • 26
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    Nature 189 (1961), S. 192-193 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE autumn meeting of the Parasitology Group of the Institute of Biology was held in the Zoology Department of Birkbeck College, London, on October 28. The meeting was very well attended and was devoted to five papers under the general title "Recent Advances in Fields of Parasitological Research". ...
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  • 27
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    Nature 189 (1961), S. 195-196 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE eleventh General Conference of Weights and X Measures was held in Paris during October 11-20 under the chairmanship of M. Barrillon, president of the Academy of Sciences. Thirty-two States were represented at the Conference, which was held at 19 Avenue Kleber, in the former Hotel Majestic now ...
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  • 28
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    Nature 189 (1961), S. 197-197 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE recently issued annual report of the National Food Survey Committee for 1958 is the ninth in the series of surveys, begun in 1950, of food consumption and expenditure on food in private households in the United Kingdom*. During 1958, 8,611 records were compiled from 827 polling districts in ...
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  • 29
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    Nature 189 (1961), S. 209-210 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have observed that macroscopic spherical VV particles collect into a thin, annular region when an initially uniform dilute suspension is passed in laminar flow through a straight tube. The development of the effect is proportional to the length I of the tube, to the mean velocity V of flow and ...
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  • 30
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    Nature 189 (1961), S. 212-212 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The instrument is intrinsically simple. A heated nichrome coil and a Fresnel zone plate are mounted on opposite ends of a 4-m. /-beam so that the zone plate produces a series of monochromatic images of the source disposed along the axis of the instrument. A bolometer detector mounted on a carriage ...
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  • 31
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    Nature 189 (1961), S. 225-226 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I may recall that at the time when Keilin and Hartree made their proposal it was generally held that myoglobin (muscle haemoglobin) and haemoglobin in vertebrates were fundamentally different, and differences between them were always emphasized. Thus, Koughton, quite recently, commented3 that: "It ...
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  • 32
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    Nature 189 (1961), S. 227-228 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A large sample of female Polyphemus, containing numerous embryos, was first extracted with acetone to remove carotenoids and then extracted with acid methanol (5 per cent hydrochloric acid), giving a deep olive-green solution. When this was diluted with water and shaken with chloroform the ...
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  • 33
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    Nature 189 (1961), S. 226-227 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A Kentron microhardness tester was used with Knoop diamond indenter, as described previously4.6, for following changes in surface hardness. Human teeth were tested for hardness initially, after softening by acetate buffer, and after treatment in calcium phosphate solutions. For each determination, ...
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  • 34
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    Nature 189 (1961), S. 229-230 
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    Notes: [Auszug] As the first stage of an investigation aimed at the isolation and identification of the toxic principle, it was necessary to develop a reliable bioassay. The bioaesay which had been devised for Gonyaulax toxin from shellfish2 was used and standardized for ciguatera toxin2 by Halstead and Bunker3. A ...
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    Nature 189 (1961), S. 230-230 
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    Notes: [Auszug] Starting from this hypothesis, I have made extracts of relaxed vessel muscles using water or salt solutions of ionic strength either lower than that in the intra-cellular fluid or equal to it. The muscle of the relaxed cow carotis was separated from other tissues. Then it was minced in a small meat ...
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    Nature 189 (1961), S. 231-232 
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    Notes: [Auszug] The dihydrofolic acid reductase from chicken liver was prepared by Futterman's method7. It was found that the reductase attacked 2-amino-4-hydroxy - 6 -lactyl - 7,8 - dihydropteridine and extinguished both the yellow colour and yellow fluorescence of its solution in the presence of reduced ...
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    Nature 189 (1961), S. 232-233 
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    Notes: [Auszug] Previous reports from this laboratory have described the value of agar precipitin analysis in the study of human streptococcal infections8-5. In the course of this work, very highly purified Streptolysin O preparations were obtained, using a combination of continuous-flow electrophoresis and column ...
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    Nature 189 (1961), S. 237-238 
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    Notes: [Auszug] The histochemical characteristics of typical entero-chromafnn cells are well established1, namely, positive reaction in the chromaffin, argentaffin and diazonium in alkaline solution tests. Other staining methods (non-histochemical) are also suitable for detection of enterochromaffin cells, based ...
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    Nature 189 (1961), S. 238-239 
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    Notes: [Auszug] When human blood platelets are added in increasing concentrations to a test system composed of strepto-kinase and bovine fibrinogen, clotted by addition of thrombin-calcium solution, a progressive increase of fibrinolytic activity is observed. This was demonstrated by each of the following three ...
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    Nature 189 (1961), S. 243-243 
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    Notes: [Auszug] Recently we have isolated cytoplasmic particles, from apples and tomato fruits, that evolve ethylene in the presence of thiomalic and thioglycolic acid. Cysteine, glutathione, methionine, and other related compounds (thiodiglycolic acid, oc-monothioglycerol, p-mercaptopropionic acid, ...
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    Nature 189 (1961), S. 246-246 
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    Notes: [Auszug] The hsemolysin, which is active against guinea pig, rabbit, horse and sheep corpuscles, is thermostable, non-antigenic and appears to be closely linked to the bacterial cells so that it cannot be obtained free in a filtrate1. During an investigation of the effects on animal erythrocytes of ...
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    Nature 189 (1961), S. 246-247 
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    Notes: [Auszug] The actinomycin used in these experiments was crystalline actinomycin S 2 3, supplied by the Daiichi Seiyaku Pharmaceutical Co., Ltd. The standard methods used for handling bacteria and phage and for determining nucleic acid were those described in another communication4. Actinomycin 8 is known to ...
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    Nature 189 (1961), S. 249-249 
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    Notes: [Auszug] The three strains studied were an, Indian strain recently isolated from the lung of a dead horse, a Pakistan strain and an attenuated type 6 strain from South Africa. The latter two were kindly supplied by Dr. Alexander of the Onderstepo'ort Laboratory in South Africa. The Indian and the Pakistan ...
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    Nature 189 (1961), S. 252-252 
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    Notes: [Auszug] (not included in the monthly Books Supplement) Great Britain and Ireland The British Cast Iron Research Association. Thirty-ninth Annual Report for the year ending 30th June, 1960. Pp. 55. (Alvechurch, Birmingham: British Cast Iron Research Association, 1960.) [2410 Association of Universities ...
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    Nature 189 (1961), S. 87-88 
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    Notes: [Auszug] THIS text-book is divided into three parts, dealing with eleetromagnetism, special relativity and general relativity. The section on special relativity is the largest and the most complete part of the book. It sets out the historical development of the ideas and concepts which led, in the end, to ...
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    Nature 189 (1961), S. 95-97 
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    Notes: [Auszug] "INVESTMENT in Education" is the title of JL the Feport of the Commission on Post-School Certificate and Higher Education in Nigeria*. Sir Eric Ashby was the chairman, and the Commission included American and Nigerian members. It was constituted to investigate Nigeria's needs in education over ...
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    Nature 189 (1961), S. 99-100 
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    Notes: [Auszug] Lotris CLARKE'S death on December 13 leaves a gap in the hearts of his innumerable friends, for he was a much-loved man. He was wealthy and was blessed with intelligence and common sense, with a lively understanding of human nature and with the standards of behaviour of his Christian Victorian ...
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    Nature 189 (1961), S. 101-101 
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    Notes: [Auszug] Dr. R. H. Golde FOLLOWING the retirement of Mr. H. M. Lacey on September 30, Dr. R. H. Golde was appointed head of the Surges and Transformer Department of the Electrical Research Association. Dr. Golde is secretary of the Study Committee on Lightning and Surges of the Conference Internationale ...
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    Nature 189 (1961), S. 108-110 
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    Notes: [Auszug] THE Fluid Dynamics Panel of AGARD held JL technical sessions at Istanbul, Turkey, during October 3-4. Fifteen papers were presented, the two main topics being the 'industrial' use of wind tunnels, and flow visualization. The term 'industrial' used in this context means 'non-aeronautical' ; and ...
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    Nature 189 (1961), S. 110-112 
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    Notes: [Auszug] PROF. G. M. FRANK organized in Moscow during Jt October 18-22, on behalf of the Academy of Sciences of the U.S.S.R., an international symposium which was sponsored by Unesco and the International Atomic Energy Agency. Half the thirty participants came from countries other than the U.S.S.R. As the ...
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    Nature 189 (1961), S. 112-112 
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    Notes: [Auszug] NOT all annual reports of technical, or even nontechnical, activities provide an absorbing story of events of interest to others than the specialist. The sixteenth annual report of the British Coke Research Association, however, is noteworthy for a mew feature in the form of a very clearly ...
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    Nature 189 (1961), S. 114-114 
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    Notes: [Auszug] TNITIAL tissue changes associated with rigor A mortis do not appear simultaneously throughout the myocardium, their onset being earlier in some areas than in others; such changes result from biochemical modifications occurring after death in myocardial fibres, that is, post-mortem ...
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    Nature 189 (1961), S. 114-115 
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    Notes: [Auszug] THE popular belief that the display of bower-birds is either indiscriminate or satisfies some conscious sestheticism has been questioned by Prof. A. J. Marshall, of Monash University (Endeavour, 19, No. 76 ; October 1960). He suggests that, remarkable as they are, the bowers and display ...
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    Nature 189 (1961), S. 117-119 
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    Notes: [Auszug] THE variations with time of the short-term JL energy spectrum of signals such as speech, music, singing, etc., can be measured with a bank of electrical band-pass filters and rectifiers. This leads to the type of display in three dimensions (time, frequency, intensity) commonly known as a sound ...
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    Nature 189 (1961), S. 120-122 
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    Notes: [Auszug] An Infrared Criterion of the Base Pairing in Nucleic acid Structure IN the course of work on the infra-red spectra of JL nucleosides1, we have found that, from a 1-mole : 1-mole aqueous mixture of adenosine and uridine, a complex crystal is obtainable, the 6\L-region spectrum of which is greatly ...
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    Nature 189 (1961), S. 122-123 
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    Notes: [Auszug] Gradient of Cholinesterase Activity THERE are many indications that cholinesterase is synthesized in the cell bodies of neurons and carried down the axons towards the nerve endings (cf. Hebb1). The mechanism of the transport is unknown. It seems that information concerning the fate of the enzyme ...
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    Nature 189 (1961), S. 123-125 
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    Notes: [Auszug] IT was shown earlier1, that after section of a cholinergic nerve (the cervical sympathetic of the sheep) choline acetylase rises much above the normal concentration in the proximal trunk while, coincident ally, it falls steeply in the distal trunk. Unlike true cholinesterase2, lipolytic esterase5 ...
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    Nature 189 (1961), S. 129-129 
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    Notes: [Auszug] Some observations made at Slough on transmissions from the satellite Explorer 7 at a frequency of 20 Mc./s. are of relevance in this connexion. Although this satellite never reaches as far north as the latitude of Slough, irregular fluctuations are frequently found on the signal-strength records ; ...
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    Nature 189 (1961), S. 131-131 
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    Notes: [Auszug] The results quoted by Hsaio are confined to a range of two decades of strain-rate in the region of 10~5 sec.-1. In hitherto unpublished work we have measured the tensile properties of isotactic polypropylene (in the form of thin filaments oriented to a draw ratio of about 5*5 : 1) over six ...
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    Nature 189 (1961), S. 131-132 
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    Notes: [Auszug] Klement, Willens and Duwez5 have recently reported the formation of glass in a gold-silicon alloy containing 25 atomic per cent silicon. This appears to have been the first instance in which a metallic glass was formed by cooling the melt. Glass formation in this experiment was, of course, ...
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    Nature 189 (1961), S. 132-132 
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    Notes: [Auszug] The water spectrum in the far ultra-violet to 185 m(x as shown by Barrett and Mansell2 has been confirmed in this Laboratory by a grating instrument (Optika C.FA) which has just been ...
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    Nature 189 (1961), S. 132-133 
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    Notes: [Auszug] The four compounds form an isomorphous series from the covalent semiconductor Mg8Si to the nearly metallic Mg2Pb. On electrochemical grounds the bond-strength, and therefore also the mechanical strengths, would be expected to decrease in the same order. Fig. 1 shows that this is indeed the case for ...
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    Nature 189 (1961), S. 133-134 
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    Notes: [Auszug] Extreme-pressure lubricating oil additives, as their name implies, are used in many applications to protect sliding metal surfaces against incipient seizure (scuffing), under conditions of heavy load when normal hydrodynamic lubrication fails. They are generally considered to function2 by reacting ...
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    Nature 189 (1961), S. 134-135 
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    Notes: [Auszug] Fig. 1. Krypton adsorption isotherms. A (at -193-2 C.), fresh film, vm = 33-5 x 10-8 c.c. at S.T.P.; B (at- 192-8 C.),sintered film, vm = 5-24 x 10-8 c.c. at S.T.P.; C (at - 193 -0 C.), 'treated' film, vm = 2 -47 x 10~3 c.c. at S.T.P. Fig. 2. Brunauer-Emmett-Teller plots from data shown in Fig. ...
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    Nature 190 (1961), S. 677-677 
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    Notes: [Auszug] THE recent issues of the Records and the annual reports for 1958-59 and 1959-60 of the Queen Victoria Museum and Art Gallery are complementary to each other. They indicate that museums, in addition to a policy for the conservation of objects, are also centres of scholarly research and do their ...
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    Nature 190 (1961), S. 678-678 
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    Notes: [Auszug] AN accurate method for dividing red-blood cell columns has been devised by Peggy Clark and B. J. Walsh of the New South Wales Red Cross Blood Transfusion Service, Sydney (Austral. J. Exp. Biol. and Med. Sci., 38, Part 6; Dec. 1960). Blood is placed in polyvinyl chloride tubing which is sealed at ...
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    Nature 190 (1961), S. 679-679 
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    Notes: [Auszug] THE following have been elected officers of the American Society for Engineering Education: President, Dr. Robert W. Van Houten, president of the Newark College of Engineering and director of the Newark Technical School; Vice-Presidents, Dr. George A. Marston, dean of Engineering at the University ...
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    Nature 190 (1961), S. 679-679 
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    Notes: [Auszug] A CONFERENCE is to be sponsored by the International Union of Pure and Applied Physics, the Royal Society, the Institute of Physics and the Physical Society, and the University of Manchester, to commemorate the discoveries of Rutherford at Manchester, and in particular the fiftieth anniversary of ...
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    Nature 190 (1961), S. 679-680 
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    Notes: [Auszug] Belfast DR. R. COMMON has been appointed to a lectureship in geography, and Mr. M. Cohen has been appointed to a lectureship in applied mathematics. Birmingham DR. W. F. VINEN, university demonstrator in physics, University of Cambridge, has been appointed to a vacant established chair of physics ...
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    Nature 190 (1961), S. 680-680 
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    Notes: [Auszug] SIB JOHN COCKCROFT, master-designate of Churchill College, Cambridge, has been appointed chancellor of the Australian National University, Canberra, in succession to Lord Brace; this appointment will not affect Sir John's position at Cambridge. PBOF. J. R. PABTHSTGTON has been given the Dexter ...
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    Nature 190 (1961), S. 682-684 
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    Notes: [Auszug] THE papers presented at the recent sixth symposium of the Zoological Society of London on "Some Aspects of Disease Transmission by Ticks", held in London on March 8, revealed how some of the pieces of this complex jig-saw puzzle are gradually being filled in, but at the same time it was indicated ...
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    Nature 190 (1961), S. 686-687 
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    Notes: [Auszug] A RECENT issue of the World Health Organization Chronicle is concerned with the transmission of malaria parasites between monkey and man*. The knowledge that such a transmission can take place dates back to 1932, when, in India, Kiiowles and Das Gupta found that Plasmodium knowlesi could cause ...
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    Nature 190 (1961), S. 697-698 
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    Notes: [Auszug] IT is a generally held view that nucleic acids carry the information necessary to specify the primary structure of proteins. As there are only four kinds of nucleotides in any one kind of nucleic acid and 18-20 kinds of amino-acids in protein, it is reasonable that at least a triplet of nucleotides ...
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    Nature 190 (1961), S. 703-704 
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    Notes: [Auszug] IN our work on the chemical structure of the organic matter of the A0 and. Bh horizons of a podzol we were interested in a practical method for estimating the aromaticity of these materials. Such a method has recently been described by Mazumdar et al.1 and Chakrabartty et al.z for determining the ...
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    Nature 190 (1961), S. 707-708 
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    Notes: [Auszug] In the present communication, some observations made at Cambridge (lat. 52 N., long. 0 E.) are described. The method was based on measurements of the diffraction pattern produced by a wave reflected at vertical incidence. The transmitted pulses were 100-200 JJLS. in length, and the frequencies used ...
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    Nature 190 (1961), S. 709-710 
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    Notes: [Auszug] An analogous phenomenon is the initiation of a cylindrical charge by an axial shock-wave. In that case the detonation sets out from a circular, coaxial area on the shock front, the radius of which is smaller than the radius of the charge2, and the maximum apparent supervelocity goes to infinity. ...
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    Nature 190 (1961), S. 712-713 
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    Notes: [Auszug] Fig. 1. E.m.f. of the cell: glass electrode To check this possibility, solutions of barium chloride ranging in concentration from 0-005 to 0 -5 M have been shaken with mixtures of solid lauric acid and solid barium laurate at 25 C. and the potential difference between a glass and silver-silver ...
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    Nature 190 (1961), S. 716-717 
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    Notes: [Auszug] The cleavage of paraoxon was followed in a Gary recording spectrophotometer, by determining the amount of 2-nitrophenol liberated at a wave-length of 4000 A., or in some of the experiments at 3470 A. The temperature was kept constant at 37 C., the pH. at 7 -9. The 0 o 1M ...
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    Nature 190 (1961), S. 718-719 
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    Notes: [Auszug] Virtanen and Laine3 isolated beta-alanine from the root nodule bacteria of peas, but there is no published report of the isolation of beta-alanine from higher plants. In the process of isolating beta-aminoiso-butyric acid from iris bulbs4, beta-alanine has been obtained in crystalline form and ...
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    Nature 190 (1961), S. 723-724 
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    Notes: [Auszug] Shore and Brodie6 showed that, following pre-treatment of rabbits with iproniazid (a naonoamine oxidase inhibitor), reserpine administration resulted in excitatory and sympathomimetic responses. However, when iproniazid was administered after reserpine, it failed to alter the depressant effects on ...
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    Nature 190 (1961), S. 724-725 
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    Notes: [Auszug] Denervation was carried out on the right side by section of the roots of the phrenic nerve and the preparations were used at variable times after the denervation. A triangular strip of the right half of the diaphragm was dissected carefully and fixed by means of threads to a special electrode ...
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    Nature 190 (1961), S. 727-728 
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    Notes: [Auszug] In contrast to the natural cell substrates, most drugs and other foreign organic compounds are absorbed mainly by simple diffusion4'5. The intestinal epithelium behaves towards these substances as an inert, lipid-like layer, readily penetrated by lipid-soluble, undissociated molecules, and ...
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    Nature 190 (1961), S. 730-731 
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    Notes: [Auszug] A lipopolysaccharide from E. coli O 86, obtained by this procedure, was placed at my disposal. An investigation was conducted to ascertain whether this purified preparation, of known qualitative-chemical composition, might possess blood-group activity of A and/or B specificity. By previous ...
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    Nature 190 (1961), S. 735-736 
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    Notes: [Auszug] Fig. 2.Cervical spinal cord of chicken. Acetylthiocholine; Gomori technique; #H 6-5; 2-hr, incubation Fig. 1. Cervical spinal cord of guinea pig. Acetylthiocholine; G6m6ri technique; pH 6-5; 2-hr, incubation All nerve cells of sensory ganglia, spinal cord and brain stem contain an abundance of ...
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    Nature 190 (1961), S. 739-739 
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    Notes: [Auszug] Infected populations of keds on sheep were destroyed by spraying with 0-5 per cent toxaphene or malathion 6-8 weeks in advance of experiments to avoid residual toxicity to keds. A week before re-infestation, sheep were given quinapyramine sulphate ('Antrycide', Imperial Chemical Industries, Ltd.), ...
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    Nature 190 (1961), S. 741-742 
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    Notes: [Auszug] Ferroceneacetic acid, ferrocenediacetic acid and ferrocenepropionic acid are all completely inactive in cell elongation as shown by their lack of effect on 3-mm. segments of Avena coleoptiles8. However, as shown in Table 1, some azulene derivatives have high activity in promoting cell elongation. ...
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    Nature 190 (1961), S. 743-743 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mathur's1 report is incomplete inasmuch as he does not mention (1) the name of the insect, (2) the stage of Spermiogenesis electronmierograph 1 represents and (3) the magnification of the two electron micrographs. I may add that I am unable to interpret his electronmicrograph 2. Furthermore, if I ...
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    Nature 190 (1961), S. 744-744 
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    Notes: [Auszug] The amino-acid analogue DL-^ara-fluoro-phenyl-alanine was incorporated in standard complete medium7 to a final concentration of 1/10,000 w/v and conidia from diploid strains heterozygous for a number of colour and nutritional markers were plated on the surface. At this concentration of the ...
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    Nature 190 (1961), S. 852-854 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ASTRONOMY differs from most sciences in that we cannot do experiments; the astronomer must build up from his existing observations a picture or 'model' of the universe, and then look for further effects which should be observable if his model were correct. Although in 700 B. C. the Babylonians were ...
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    Nature 190 (1961), S. 569-570 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] IT will probably come as a surprise to most readers of this book to find it described as the fourth edition of Recent Advances in Biochemistry. The third edition of a book with this title appeared in 1931. It was written by Prof. J. Pryde and was a landmark in biochemical literature. The present ...
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    Nature 190 (1961), S. 572-572 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] POWDER metallurgy is becoming an increasingly important metallurgical process, and, though a number of comprehensive books on the subject have been published in the United States, it is very useful to have this long and detailed book published in Great Britain and written by an author with such ...
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    Nature 190 (1961), S. 574-576 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] A NUMBER of observers in the temperate zones ji\ of the northern hemisphere have reported a seasonal variation in the concentration of long-range fall-out material1-3. Thus both dust samples collected from surface air and rain-water samples have shown higher activities in the late spring than in ...
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    Nature 190 (1961), S. 585-585 
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    Notes: [Auszug] WILLIAM HENRY FITTON, physician and geologist, died in London on May 13, 1861, at the age of eighty-one. In an obituary notice, Sir Roderick Murchison, director-general of the Geological Survey, described him as "truly one of the British worthies who have raised modern geology to its present ...
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    Nature 190 (1961), S. 587-587 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] MB. W. O. BROUGHTON has been promoted to deputy chief scientific officer and appointed to the post of director of air navigation and reconnaissance research and development in succession to Mr. C. J. Carter, who has joined the defence research staff in Washington. Mr. Broughton started his career ...
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    Nature 190 (1961), S. 588-588 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] REPLYING to a question regarding Great Britain's contribution to a space research programme, Mr. D. Freeth, Parliamentary Secretary for Science, said in the House of Commons on May 2 that Great Britain's programme comprises five main elements. There is the programme of scientific experiments using ...
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    Nature 190 (1961), S. 589-590 
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    Notes: [Auszug] THE National Committee on Radiation Protection and Measurement of the U.S. National Bureau of Standards has issued a new handbook with information about how to obtain medical protection from X-rays up to 3 x 106 V. (National Committee on Radiation Protection and Measurements. Report No. 26. Pp. ...
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    Nature 190 (1961), S. 590-590 
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    Notes: [Auszug] THE report for 1960 of the Ciba Foundation for the Promotion of International Co-operation in Medical and Chemical Research, which includes, as usual, details of symposia and their participants, of the study groups and research meetings, and lists of publications held and issued, records that the ...
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    Nature 190 (1961), S. 591-591 
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    Notes: [Auszug] THE Society for General Microbiology held its annual general meeting on April 10, at the Royal Institution. For the forthcoming year the following officers were elected: President, Prof. R. Lovell; Treasurer, Prof. K. E. Cooper; Editors, Prof. B. C. J. G. Knight and Mr. A. F. B. Standfast; Meetings ...
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    Nature 190 (1961), S. 591-591 
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    Notes: [Auszug] IN the note entitled "The Geological Society of London", appearing on p. 492 of May 6 issue of Nature, the final sentence refers to newly elected members of the Society's Council. Furthermore, Dr. P. A. Sabine, one of the newly elected secretaries, is the chief petrographer, H.M. Geological ...
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    Nature 190 (1961), S. 595-596 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE outstanding activity of the World Health Organization in 1960 was the assistance given to enable the Republic of the Congo (Leopoldville) to meet the emergency health situation in which it found itself immediately after attaining independence. This is described in the annual report of the ...
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