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  • Nature Publishing Group  (15,714)
  • Oxford University Press  (2,952)
  • University of Chicago Press  (1,332)
  • 1950-1954  (19,998)
Collection
Publisher
Years
Year
  • 101
    Electronic Resource
    Electronic Resource
    Visual Aids (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 919-919 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE increasing part which visual aids are playing in modern education has led manufacturers to produce a wide range of apparatus which can be used in this instructional technique. So many types of film-strip projectors, autoscopes, diascopes, epidiascopes, lanterns, micro-projectors, screens and ...
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    URL: http://dx.doi.org/10.1038/165919a0
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  • 102
    Electronic Resource
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    Feeding Mechanisms in the Vermetidæ (Order Mesogastropoda) (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 923-924 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CILIARY mechanisms of food-collecting by em-\^Jl ployment of the currents of the ctenidium and pallial cavity have been described in several families of style-bearing prosobranchs : the Calyptrseidse, Capulidse and Vermetidse as reviewed by Yonge1, the Turritellidse (Graham2) and recently in the ...
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    URL: http://dx.doi.org/10.1038/165923a0
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  • 103
    Electronic Resource
    Electronic Resource
    Effect of Aeration on the Cytochrome Systems of the Resting Cells of Brewers' Yeast (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 926-927 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the present communication, it is shown that an alteration both in the cytochrome components and in the metabolic activities can be demonstrated during resting metabolism of brewers' yeasts, thus excluding the possibility that certain cells were selected during the process. For this study, top ...
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    URL: http://dx.doi.org/10.1038/165926b0
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  • 104
    Electronic Resource
    Electronic Resource
    Technical and Technological Education (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 918-918 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN his presidential address to the forty-first annual conference of the Association of Teachers in Technical Institutions on May 28, Mr. A. Taylor, of the Royal Technical College, Salford, after a passing reference to the bearing of revision of the Burnharn salary scales on staff problems for the ...
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    URL: http://dx.doi.org/10.1038/165918a0
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  • 105
    Electronic Resource
    Electronic Resource
    Western Union Cultural Identity Cards (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 917-918 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A CULTURAL identity card has been instituted by the Brussels Treaty Organisation, which will give certain facilities and privileges to nationals of each of the five Treaty countries when travelling in the other four for cultural purposes. In Article III of the Brussels Treaty, Belgium, France, ...
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    URL: http://dx.doi.org/10.1038/165917e0
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  • 106
    Electronic Resource
    Electronic Resource
    Constitution of Alloys Group of the British Iron and Steel Research Association (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 919-919 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Metal Physics Committee of the British Iron and Steel Research Association has appointed a Constitution of Alloys Group to consider the co-ordination of phase-diagram work being carried out in connexion with metallurgical subjects, especially the transitional elements and high-temperature ...
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  • 107
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    Announcements (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 919-919 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Albert Medal for 1950 of the Royal Society of Arts has been awarded to Sir Edward Appleton, principal and vice-chancellor of the University of Edinburgh, "for outstanding services to science and industrial research". The Medal, which is the highest award in the gift of the Society, is given ...
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  • 108
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    The Carnegie Institution of Washington: Annual Report for 1948–49 (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 924-925 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] YEAR Book No. 48 of the Carnegie Institution of Washington* includes the usual reports of the executive committee, auditors and president, Dr. Vannevar Bush, for the year ended June 30, 1949, together with the departmental reports and a bibliography of publications of the Institution for the ...
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  • 109
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    Nature of Placental Cholinesterase (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 927-928 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HYDROLYSIS-RATES OF ACETYL CHOLINE, ACETYL-^-METHYL CHOLINE AND BENZOYL CHOLINE BY FRESH AND PERFUSED HITMAN PLACENTA A*l. C02/gm./hr. As % of acetyl-choline activity Acetyl choline (0-015M) Acetyl-0-methyl choline (0-03JW) Benzoyl choline (0-015M) Aeetyl-0-methyl choline Benzoyl choline ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165927a0
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  • 110
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    Nerve Connexions of Taste-Buds (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 978-978 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This findingso interesting in the general morphology of the nerves of special sensehas caused us to re-examine the nerve supply of the circumvallate papillae in other animals, and we find, particularly in the calf and dog, a similar but much more diffuse arrangement. It is hoped to publish details ...
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    URL: http://dx.doi.org/10.1038/165978a0
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  • 111
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    Development of the Embryo Sac, Embryo and Endosperm in Helixanthera ligustrina (Wall.) Dans. (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 978-979 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Although further work is in progress and it is intended to obtain more material from Nepal during the present year, the results already obtained are sufficiently interesting to merit a brief report. A review of the existing literature on the embryology of this family and a discussion of the ...
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  • 112
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    Nature and Relationships of the Specific Products of the Human Blood-Group and Secretor Genes (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 300-302 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE classical blood-group characters shown by human erythrocytes arise from the presence of substances which are specific gene products, each of which, together with its specific immunological character, arises as if controlled by a single gene. Schiff and Sasaki1 established many years ago that ...
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  • 113
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    Catalogue of Thermionic Valves (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 877-877 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A PRINTED booklet, entitled "List of Preferred Valves", which is a catalogue of preferred thermionic valves and their characteristics, has been compiled and issued by the Electronics Section of the Scientific Instrument Manufacturers Association of Great Britain, Ltd. (pp. 28; London, 1949; 2s. ...
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  • 114
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    Erratum (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 878-878 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the communication "Purification and Crystallization of Q-Enzyme" (Nature, April 8, p. 573), par. 2, line 9, for "ionic strength" read ...
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  • 115
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    Serological Behaviour of Human and Hog H -Substances with the So-Called Anti- O Sera of Different Origin (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 884-885 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SCHIFF1 and Greenfield2 first introduced the use of selected normal cattle sera which, after suit-able absorption with A ^B cells, act as useful reagents for the agglutination of human group O red-cells. Somewhat later, an antiserum produced in the goat8 by immunization with a culture of Shigella ...
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  • 116
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    John Hanson: A Maker of Microscope Slides (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 887-887 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] TΉΕ history of the development of science in A Great Britain abounds with the names of many whose training did not embrace all that is usually considered necessary for the professional scholar. Some had a sound early education, some were entirely self-taught. Some, such as Landen, remained ...
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  • 117
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    Production of an Irreversible Joshi Effect in the Hysteresis-Range below the Threshold Potential (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 890-891 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Joshi effect below Vm increased progressively to almost 100 per cent current diminution in light at a certain voltage, say, VR, and continued to be so up to FI. Within this range of voltage VRFI, it was remarkable to observe that the photo-suppression of i and also of the associated high ...
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  • 118
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    Royal Aeronautical Society: Awards (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 919-919 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Royal Aeronautical Society has recently announced the award of the following medals and prizes : Royal Aeronautical Society's Gold Medal, the highest honour which the Society can confer for work in aeronautics, to Sir Geoffrey de Havilland for his outstanding work in the field of aviation ; ...
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  • 119
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    Physiological Variations in Serum Proteins in Cattle (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 896-897 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The accompanying diagram shows the distribution, with age, of the total protein, albumin and globulin of serum, estimated by the tyrosine method of Green-berg1, of 126 heifer calves, heifers and cows of ages ranging from six weeks to 14 years 7 months. All were of the white Fulani type and all had ...
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  • 120
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    Details of Wind Structure Revealed by Artificial Nucleation of Supercooled Clouds (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 899-900 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] With cloud of sheet type, which is cold enough and not too deep, this precipitation often leads to the appearance of a cleared laneor, at any rate, a lane in which theie are only ice crystalswhich steadily increases in size. The amount of precipitation is almost always trivial; but the manner, and ...
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  • 121
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    Structure of Chlorodesoxypatulinic Acid (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 928-930 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ester (VI) (m.p. 57-58) was synthesized in two ways. The ketol (VII)* was hydrolysed to the corresponding mono-ester, decarboxylated, and treated with anhydrous formic acid. Alternatively, the product of the condensation of tetrahydro-y-pyrone with ethyl glyoxylate ethyl hemiacetal in the ...
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  • 122
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    Masses of the π- and µ-Mesons (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 933-933 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] However, there are two values that are found repeatedly and that lend themselves to a more precise determination. These are the masses of TT- and (ji-mesons. The best present experimental determinations seem to be 276 and 210 respectively2. Their ratio, which is more reliable than the individual ...
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  • 123
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    [Book Reviews] (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 828-828 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS large, beautifully produced book appears at first sight forbidding and dull; but it is far from being either. It consists mainly of letters sent from the Hudson's Bay Company to its servants on the shores of the Bay. These letters deal with the everyday life of the servants, the prevention of ...
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  • 124
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    Distribution of Chthamalus stellatus on the Shores of North-East Ireland (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 311-311 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since 1938 I have known of the occurrence of Chthamalus in County Down, and it was later recorded by MacDonald4 from Portlehan near Ardglass. Within the past three months, I have obtained specimens from the following places in Down : Annalong, Newcastle, St. John's Point, very abundant ; Ardglass ...
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  • 125
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    Breeding and Distribution of Chthamalus stellatus (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 311-312 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Chthamalus is much more widespread in the Irish Sea than is suggested either by Moore and Kitching1 or by Southward2. It has been found to be present along the whole Ayrshire, Galloway, Cumberland and Lancashire coasts as far south as New Brighton (1950). The settlement, even at Blackpool, is not a ...
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  • 126
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    The Medusa Craspedacusta in Australia (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 312-313 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I believe the following to be the first record of the species on the Australian continent. On March 8 some specimens were very kindly sent to me by Mr. J. Johnston, of the Adelaide Engineering and Water Supply Department. They had been found on the previous day in the Thprndon Park reservoir, which ...
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  • 127
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    Institute of Petroleum: Officers for 1950–51 (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 839-839 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OFFICERS of the Institute of Petroleum for the year 1950-51 have been elected as follows. President : C. A. P. Southwell, managing director, Kuwait Oil Co., Ltd. Vice-Presidents: M. A. L. Banks, manager of operating branch, Refining Division, Anglo-Iranian Oil Co., Ltd. ; E. J. Dunstan, director, ...
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  • 128
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    Mapping Chromosome Centromeres by the Analysis of Unordered Tetrads (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 893-893 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In an unordered tetrad, in which the products of meiosis are not linearly arranged, direct observation of the relative frequencies of first- and second-division segregation for particular loci is not possible. When segregation occurs for two pairs of allelomorphs (A ja and B/b), a proportion of ...
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  • 129
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    Influence of Sugars and Amines on the Colorimetric Hexosamine Method of Elson and Morgan and its Possible Elimination (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 898-899 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (1) 0-0015 M glucosamine-HCl; (2) 0-025 M glucose + 0-0025 M lysine-2HCl; (3) 0-0015 M glucosamine-HCl + 0-025 M glucose + 0-0025 M lysine-2HCl The sugar-amine reaction may be differentiated from the hexosamine reaction in a relatively simple manner. (1) The optimum pH. for glucosamine is at 9-5 ...
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  • 130
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    Soil and Vegetation in British Somaliland (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 901-901 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There is conclusive evidence that the soils of British Somaliland are in the process of severe erosion as a consequence of drastic overgrazing and cutting of branches of a great number of species of trees as fodder when herbaceous pastorage has become de-pleted. Extensive forests of dead trees are ...
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  • 131
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    Prehistory of Aeronautics (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 825-825 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS book is not an easy one to classify, and the title is somewhat misleading, as it does not do justice to the more serious work contained. The author defines her scope as "tracing the idea of flight through the literature of the two centuries immediately preceding man's conquest of the air" ...
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  • 132
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    Cambridge Summer School in Electron Microscopy (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 878-878 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A SUMMER school in electron microscopy for those who are, or are about to be, operating the instrument will be held again this year in the Cavendish Labora-tory, Cambridge, during July 18-29. The lectures will deal with the fundamental theory and operating principles of the electron microscope, and ...
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  • 133
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    Antagonism between Trypaflavine and Cations (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 852-853 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Working with baker's yeast2 and with E. coli3, we have shown that the inhibition of respiration caused by trypaflavine is reversed not only by hydrogen ions, but also by different mono-, di- and ter-valent cations (K+, Na+, Mg++, Ca++, La+++) and by non-inhibiting organic cations such as spermine4. ...
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    Lead Absorption of Cosmic Rays at Different Altitudes near Magnetic Latitude 22° N. (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 318-319 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In 1945, I made some measurements on the absorption of cosmic rays in lead near magnetic latitude 22 N. at altitudes varying from 600 ft. to 16,800 ft. in the Himalayas. Two similar telescopes consisting of three Geiger-Miiller tubes each with slabs of lead interposed, connected together in a ...
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    Statistical Analysis of Results for Successive Tests on the same Organism (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 319-319 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the experiment under consideration, the animals were divided into two groups, one treated and one untreated. The treatment was continued over four experimental periods, during each of which measurements of various physical characters were taken for each animal. In determining the treatment ...
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    Forthcoming Events (1950)
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    Nature 166 (1950), S. 320-320 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Monday, August 21 Saturday, August 26 INTERNATIONAL ...
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    The Adrenal Gland in Mammals (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 781-782 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AFAVOURITE gambit of lecturers is to tell students that the amount of structural differ-entiation of the anterior part of the pituitary gland belies the organ's multiple functions. The position is rapidly becoming the same in the case of the adrenal. Dr. Bourne's attempt to enlarge our knowledge of ...
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    Announcements (1950)
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    Nature 165 (1950), S. 839-839 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Osier Memorial Medal for 1950 of the University of Oxford has been awarded to Sir Ernest Kennaway, emeritus professor of experimental pathology in the University of London. MB. DENIS RICHARDS, author of the earlier half of the R.A.F. "short" Official History soon to be published, is to succeed ...
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    Desoxyribonucleic Acid Content of the Ciliate Micronucleus (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 848-848 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] While examining Feulgen preparations of the normal and dividing micronuclei of Chilodonella uncinatus Ehrbg. (Protozoa: Ciliata) it was noticed that conditions here were at variance with those usually reported in metazoan nuclei. Photometric measurements (see Pollister and Moses4 for details of ...
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    Occurrence of Biotin in Seitz Filter Pad (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 851-851 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A medium which had successively undergone the processes of Seitz filtration and heat sterilization was found to support growth and sporulation of the fungus. Similar results were obtained when the basal medium was supplemented with a water-extract of the filter pad and then sterilized by heat. That ...
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    College of Aeronautics, Bletchley: A. D. Baxter (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 794-794 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MR. A. D. BAXTER has been appointed to the chair of aircraft propulsion at the College of Aeronautics, as from September 1. Mr. Baxter is at present super-intendent of the Rocket Propulsion Department at Westcott of the Royal Aircraft Establishment. He has served with the Establishment since 1935 ...
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    Mixed-Bed De-ionization for Treatment of Water (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 794-794 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EIGHT years ago, the Permutit Co., Ltd., of Gunnersbury Avenue, London, W.4, introduced a new technique in water treatment. This involved the use of mixed cation- and anion-exchange materials for producing high-quality demineralized water in a single step. The process has been developed, and, by ...
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    Hydrodynamics, Classical but Modern (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 244-244 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE first edition of this well-known book appeared in 1938 and was characterized by the consistent use of the vector notation and a carefully lucid exposition. The author explains in the preface that the book is founded upon lectures given at the Royal Naval College, Greenwich, to junior members of ...
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    Documentation of the Nitrogen Compounds of Naphthalene (1950)
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    Nature 166 (1950), S. 244-245 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS second part of Vol. 12B consists of 708 pages of text and 75 pages of indexes. The first part has already been reviewed in these columns (see Nature, 163, 822 ; 1949 ; and, for a general description of the whole project, see Nature, 161, 415 ; 1948). The nitrogen derivatives of naphthalene ...
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    Statistical Sampling (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 245-245 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE United Nations Sub-Commission on Statistical Sampling held its first session at Lake Success in September 1947 and asked on that occasion for a manual to be prepared to assist in the execution of the projected 1950 World Censuses of Agriculture and Population. This request has been handsomely ...
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    [Book Reviews] (1950)
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    Nature 166 (1950), S. 246-246 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE account in this book of the Guildhall Library is the first real description of that Library that I have seen, and it is contained, moreover, in a book that, apart from a certain bias towards the librarian's rather than the user's point of view, is well suited to the needs of the undergraduate ...
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    [Book Reviews] (1950)
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    Nature 166 (1950), S. 246-246 
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    Notes: [Auszug] ALTHOUGH this book was no doubt written in JL\〉 all seriousness and deadly earnest, yet it leaves one with the impression of being intellectually naive. Briefly, the author's thesis is that this is one world, and it now requires one world culture ; only on the basis of a common world view can the ...
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    [Book Reviews] (1950)
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    Nature 166 (1950), S. 246-246 
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    Notes: [Auszug] THE new volume of these reports maintains the high standard of the work. Among the topics dealt with are the chemical action of ionizing radiations, the structure of aqueous solutions of soap-like substances, chemical kinetics, terpenes, colchicine and related compounds, the functions of small ...
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    Genetical Structure of Populations (1950)
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    Nature 166 (1950), S. 247-249 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE genetics of populations has two main supports, one of which traces to Galton. A geneticist cannot read "Natural Inheritance" (1889) without feeling that Galton would have welcomed Mendel's paper if it had come to his attention during his active career, and that he would have seen that it and ...
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    Wool Industries' Research Association: Annual Report (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 795-795 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE report of the Director of Research of the Wool Industries' Research Association for 1948-49 (Pub-lication 188, Leeds, 1949) records some progress with the building programme and evidence of industrial experimentation and inventive activity in the combing, drawing and spinning sections of the ...
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    Science Service, Washington: Election of Trustees (1950)
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    Nature 165 (1950), S. 795-796 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT the annual meeting of Science Service, Inc., held in Washington, D.C., on April 27, the following were re-elected as trustees for a three-year term: Prof. R. A. Millikan, professor emeritus, California Institute of Technology; Prof. Ross G. Harrison, Sterling professor emeritus of biology, Yale ...
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    Interaction of Arylthioureas and Aromatic Sulphonyl Chlorides (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 817-817 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The action of benzenesulphonyl chloride on thiourea in alcoholic solution was first studied by Remsen and Turner3, who obtained dithioformamidine dihydro-chloride and diphenyl disulphoxide; similar results were obtained by Leitch et al.* using p-acetamido-benzenesulphonyl chloride. Fromm and ...
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    Structure of the Diazonium Ion (1950)
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    Nature 165 (1950), S. 817-817 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Starting with phthalimide containing labelled nitro-gen, we synthesized and diazotized labelled aniline and coupled it with P-naphthol. By reduction we split the product to aniline and a-amino-(3-naphthol. If resonance of the above kind exists, the labelled nitrogen should be equally divided ...
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    Davyum, a Possible Precursor of Rhenium (Element 75) (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 819-819 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Kern assumed its solution in aqua regia contained davyum chloride. With potassium hydroxide it gave a light yellow precipitate, soluble in acids. Hydrogen sulphide gave a brown precipitate that turned black. Potassium thiocyanate gave a red colour (or precip-itate if heated). Later, Kern reaffirmed ...
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    Stimulation by Insulin of in vitro Fat Synthesis by Lactating Mammary Gland Slices (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 807-808 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have previously pointed out3 4 the outstanding properties of lactating mammary gland as a tissue for the in vitro study of fat synthesis. As judged by the high respiratory quotient (R.Q. 〉 1), mammary gland slices will rapidly synthesize fat in vitro from carbohydrate (non-ruminants) or ...
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    High-Frequency Discharges in Gases (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 811-812 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The electrodes were 2-cm. diameter chromium-plated, brass spheres, mounted in a cylindrical test-cell some 7 -5 cm. in diameter. The gap was irradiated by a 1-mC. capsule of radioactive cobalt (Co60), and normal precautions were taken in cleaning the elec-trodes. The gases were of commercial purity ...
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    Rotation of Δ 6 - iso Equilin (6-Dehydroœstrone): a Correction (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 815-815 
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    Simultaneous Fixation of Trioses, Pyruvic Acid and Acetaldehyde from Alcoholic Fermentation with Living Cells (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 814-814 
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    Notes: [Auszug] More interesting in view of the fixation of inter-mediate ketonic or aldehydic products seems to be phenylhydrazine oxalate, COOH.H2N-NHC6H5 COOH.H2N-NHC6H5 which I have used to investigate some processes of microbial dissimilation of carbohydrates, obtaining positive results that are more ...
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    Mercerization of Jute (1950)
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    Nature 165 (1950), S. 818-819 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have ascribed the difference in behaviour of jute and ramie during mercerization to the effect of lignin in the former, where, perhaps by forming cross-linkages between the cellulose chains near the bound-aries of the crystallites, it introduces an element of stability absent in the purer ...
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    Arctic Exploration (1950)
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    Nature 165 (1950), S. 782-782 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is not easy-and perhaps ill-advised from pros-pects of popular acceptance-to write a history of polar exploration without a bias to the heroic, senti-mental or patriotic. A mere catalogue of expeditions would make dull reading, and the most successful and least adventurous efforts are generally ...
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    [Book Reviews] (1950)
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    Nature 165 (1950), S. 783-783 
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    Notes: [Auszug] MR. J. C. HARRISON is well known as a skilled bird artist, and this volume of "Bird Portraits" from his brush and pencil will enhance his already considerable reputation. It includes some lovely pictures in colour and a number of pencil sketches. The latter are particularly fascinating; for ...
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    Mr. J. W. Williamson (1950)
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    Nature 165 (1950), S. 792-792 
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    Notes: [Auszug] THE death on March 16 of Mr. J. W. Williamson, at the age of eighty-one, will be felt as a sad loss by his many friends. He had an unusually varied career. Being forced for financial reasons to abandon medical studies at the University of Edinburgh, he was for many years a schoolmaster. At the age ...
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    Mr. F. Hope-Jones (1950)
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    Nature 165 (1950), S. 792-793 
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    Notes: [Auszug] THE death of Frank Hope-Jones on April 3 has taken from us an enthusiast; to everything in which he became interested during his long life of eighty-three years he applied an unbounded enthusiasm which did much to help on the project in hand. Hope-Jones's primary interest was the application of ...
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    Mathematics at the University College of North Staffordshire: Prof. I. N. Sneddon (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 793-793 
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    Notes: [Auszug] DR. I. N. SNEDDON, who has been appointed to the chair of mathematics in the University College of North Staffordshire, is thirty years of age. He was educated first at the University of Glasgow, where he graduated B.Sc. in 1940 with honours in mathe-matics and natural philosophy, going later to ...
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    The National Institute for Medical Research (1950)
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    Nature 165 (1950), S. 744-746 
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    Notes: [Auszug] THE National Institute for Medical Research has lately moved to its new home on the Ridgeway, Mill Hill. On May 5 it was formally opened by His Majesty the King, accompanied by Her Majesty the Queen. For almost exactly thirty years its home has been at Mount Vernon, Holly Hill, Hampstead. One ...
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    Submarine Gravity Survey: A British Expedition in the Eastern Mediterranean (1950)
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    Nature 165 (1950), S. 750-750 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE figure of the earth is so nearly an ellipsoid of revolution that people are apt to think that the distance between two places can be calculated exactly, once their latitudes and longitudes are known. This is not so. The actual shape of the mean sea-level surface depends on the distribution of ...
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    [Obituaries] (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 752-752 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE regret to announce the following deaths : Mr. G. H. Nash, C.B.E., a director during 1927-38 of Standard Telephones and Cables, Ltd., known for his work on the seismophone and the hydrophone, on April 7, aged sixty-nine. Prof. G. W. Robinson, F.R.S., professor of agricultural chemistry in the ...
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    Plastics Industry in Germany (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 795-795 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE journal Kunststojfe, published by Karl Hanser, of Munich, is now entering on its fortieth year. Since its beginning this journal has been able to record the successive stages in the development of the now very important plastics industry. It was founded in 1910 by Dr. Richard Escales and deals ...
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    Physical Society (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 796-796 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Officers for 1950–51 AT the annual general meeting of the Physical Society, held at the Science Museum on May 9, the reports of the Council and Treasurer and the accounts and balance sheet for 1949 were presented and adopted, and the officers and Council for 195CM51 were elected as follows: ...
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    History in Irish Peat Bogs (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 802-803 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a symposium on research into Quaternary history held in London in October 1946, Prof. K. Jessen's wise counsel to those interested in the history of the floras of the British Isles was to collect further evidence rather than spend time in specula-tion. His own very considerable contribution to ...
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    U.S. National Academy of Sciences: Annual Meeting (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 805-805 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE National Academy of Sciences, at its annual meeting held in Washington, D.C., during April 24-26, elected the following officers, new members and foreign associates. President for a four-year term ending in 1954: Detlev W. Bronk, president of Johns Hopkins University and chairman of the United ...
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    Determination of the Ionic Exchange during Nervous Activity by Activation Analysis (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 809-810 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] This limitation has been overcome by applying the technique of activation analysis8'4. In principle, this consists in irradiating tissue samples with neutrons, and then determining the amounts of different radio-active isotopes which have been formed. The pro: cedure which was adopted depended on ...
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    Bromination of Certain Ketosteroids and a Partial Synthesis of Œstradiol, Œstrone and Equilenin (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 814-815 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Dibromination of testosterone acetate (I, R- OAc) in ether-acetic acid or with two moles of N-bromo-succinimide in carbon tetrachloride solution gave a dibromo derivative which was smoothly dehydro-brominated with collidine with loss of two moles of hydrogen bromide to afford ...
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    The Reaction between β-Carotene and Antimony Trichloride (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 817-818 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Assuming that the compounds formed in the re-action are unsymmetrical ions, 〉max should be a linear function of the number of conjugated double bonds2. In the colour test, anhydrovitamin Ax (with six con-jugated double bonds) has Xmax = 623 mpi3, whereas anhydrovitamin A2 (with probably seven ...
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    Sorption of Water Vapour by Tobacco Mosaic Virus (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 266-267 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tobacco mosaic virus, however, presents a different picture. The external dimensions of the virus molecule have been established from the X-ray studies of Bernal and Fankuchen7, and it is known to be rod-like in shape, approximately 150 A. in diameter (see also electron-microscope work8). Bernal ...
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    Polyvinylphosphate Contractile Systems (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 267-267 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In continuation of previous researches on mechano-chemical systems2*3 〉*, we found that synthetic polyphosphate systems indeed exhibit a high contractility. Polyvinylphosphate, readily obtained by the phosphorylation of polyvinyl alcohol, served as a simple model for the above theory. - ...
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    Salicylhydroxamic Acid as an Antitubercular Agent (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 267-268 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Salicylhydroxamic acid was prepared according to Jeanrenaud4 by the action of an alkaline solution of hydroxylamine on the sodium salt of methyl salicylate in aqueous medium. Salicylhydroxamic acid prepared in this way contains a certain amount of salicylic acid, but it can be purified by ...
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    Metaphosphate in the Excreta of the Wax Moth, Galleria mellonella (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 268-269 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In further experiments we have studied the chemical nature and properties of this labile phosphorus compound, so unusual for the excreta. The compound was water- and acid-soluble and belonged to the barium-insoluble fraction. It could be precipitated with lead nitrate at pH. 2 according to the ...
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    Narcotics and the Phosphates of Brain (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 269-270 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has therefore been possible to compare the actions of drugs on phosphates during their actions in vivo and in vitro, and we report now some conclusions with respect to the action of narcotics. These substances inhibit respiration in vivo1 and also in vitro8, and suggestions have been made that ...
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    Identification of p -Cresol as a Toxin in Œstrogen Concentrates from Sheep Urine (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 269-269 
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    Notes: [Auszug] To detect oestrogenic activity it was necessary to inject the extract from a large volume of sheep urine, an injection of 0-1 ml. of the final oily extract corresponding to as much as 70 ml. of urine. Since the usual extraction methods for oestrogen, including that used1, would be expected to ...
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    Vitamin B 12 Assay in Body Fluids (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 270-271 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Assays of crystalline B12 (obtained by courtesy of Glaxo Laboratories) and liver extracts have been carried out, using a modification of the technique described by Hutner. About 1 ^fjtgm./ml. is the least amount stimulating growth, and, because of the greater sensitivity of this assay method over ...
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    Conversion of Hydrastine into Berberine, and an Instance of the Asymmetrical Quaternization of a Tertiary Base (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 271-272 
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    Notes: [Auszug] Reduction of 1-a-narcotine with lithium aluminium hydride affords a glycol (I), melting point 134°, WD -10-4° in N/10 hydrochloric acid. This base forms a characteristic methiodide and an O-diacetyl-derivative, melting point 165-6° (decomp.). 1-p-Narcotine, on reduction under similar ...
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    Fluorescence of Amino-Acids, Peptides and Amines on Filter Paper (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 272-272 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When crystals of some twenty amino-acids were examined in ultra-violet light from a lamp known to excite fluorescence on chromatograms, only trypto-phane, histidine and citrulline were markedly fluorescent, the feeble fluorescence of the remainder suggesting that their intrinsic activity was ...
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    A Reversed-Phase Partition Chromatogram using Chlorinated Rubber (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 272-273 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] However, all these methods involve difficulty in the preparation of a homogeneous support. We have now developed a re versed-phase chromatogram using a commercial chlorinated rubber ('Alloprene', I.C.I., Ltd. ; extra high viscosity grade E) for the separation of the 1ST-2 : 4-dinitrophenyl ...
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    Treatment of Paper for Chromatography of some Colloidal Electrolytes (1950)
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    Nature 166 (1950), S. 273-273 
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    Notes: [Auszug] By development with water, mixtures of tartrazine, geranine (I.C.I., Ltd.), eosin and fluorescein have been separated on such paper using the central-feed technique3, a noteworthy feature being the sharpness of separation and the uniformity of zones, although there is little or no space between ...
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    Penetration of the Spermatozoon in vitro into the Mammalian Ovum Oxydo Potential Level (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 763-763 
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    Notes: [Auszug] In January 1949 in the Bulletin de VAssociation des Gynecologues de langue franpaise, Moricard and Bossucommented : "tubal secretion has a rather low rH2; a remark which is probably important as regards the attempts foj in vitro fertilization". This hypothesis has proved very fruitful. In vitro ...
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    Biosynthesis of Vitamin C in Germinating Legumes (1950)
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    Nature 165 (1950), S. 765-766 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Irradiation hastens the oxidative destruction of ascorbic acid3. Hence, in seeds germinated in dark, there is a check on both enzymic and non-enzymic oxidations. The increase in reducing sugars (29 per cent in five days) would also be expected to stimulate vitamin formation, since sugars and sugar ...
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    Chromatographic Observations on Nitrogenous Constituents of Petroleum-Ether Extracts of Plasma (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 768-769 
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    Notes: [Auszug] The plasma protein was precipitated with absolute alcohol (final concentration 70-80 per cent), the filtrate was 'desalted' by the method of Consden, Gordon and Martin2, and then dried in vacuo for a prolonged period to ensure removal of the last traces of water and alcohol. The dried filtrate was ...
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    Structure–Action Relationships of Drugs (1950)
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    Nature 165 (1950), S. 416-416 
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    Notes: [Auszug] ELATIONS between the chemical constitution JLV and the physiological action of drugs have fascinated and baffled organic chemists and pharmacologists ever since the classical work of Crum Brown and Fraser. Some authors have despaired of finding any firm relationships ; thus A. J. Clark wrote: "It ...
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    [Book Reviews] (1950)
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    Nature 165 (1950), S. 418-418 
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    Notes: [Auszug] THIS book has become in Germany the classic exposition of mineralogical science and can be compared most directly with its American counterpart, namely, Dana's text-book published in 1932. Prof. P. Bamdohr's careful revision embodies all the advantages of a descriptive system based upon the exact ...
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    Council for the Promotion of Field Studies (1950)
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    Nature 165 (1950), S. 427-427 
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    Notes: [Auszug] THE report for 1948-49 of the Council for the Promotion of Field Studies shows that the four field centres at Malham Tarn, Flatford Mill, Juniper Hall and Dale Fort are now open all the year round except for short breaks in the winter. The great variety of students who have already made use of the ...
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    Royal Society of Edinburgh: New Fellows (1950)
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    Nature 165 (1950), S. 426-427 
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    Notes: [Auszug] THE following were elected fellows of the Royal Society of Edinburgh at the ordinary meeting held on March 6 : Mr. D. Band, lecturer in urological surgery, University of Edinburgh; Prof. R. M. Barrer, professor of chemistry, University of Aberdeen ; Sir Alexander Biggam, director of the Edinburgh ...
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    Anthropometry in Ceylon (1950)
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    Nature 165 (1950), S. 632-632 
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    Notes: [Auszug] A RECENT issue of the Ceylon Journal of Science (Section G, Anthropology, 4, Part 1, October 1949) contains four anthropometric studies of the peoples of Ceylon : P. K. Chanmugan compares the metrical traits of a hundred adult male subjects (fifty Sinhalese and fifty Ceylon Tamils) ; and H. ...
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    Opening of Milk Bottles By Birds (1950)
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    Nature 165 (1950), S. 435-436 
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    Notes: [Auszug] IN 1921 birds described as tits were observed to prise open the wax-board tops of milk bottles on the doorsteps in Swaythling, near Stoneham, Southampton, and drink the milk. This is the first known record of an act which has now become a widespread habit in many parts of England and some parts of ...
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    Vitamin B 12 and Histamine (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 439-440 
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    Notes: [Auszug] Of twelve guinea pigs (mean weight 300 gm.) four, used as controls, were injected intracardiacally with 0*12 mgm. of histamine (which is almost twice the M. L. D. of 0-025 mgm. per 100 gm. body-weight by intravenous injection8), and all of them died of shock within half an hour. The other eight ...
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    Aperiodic Frequency-Doubling by Means of ‘Pluri-Terminal’ Titanate Capacitors (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 441-441 
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    Notes: [Auszug] We felt that this permittivity variation should exist not only for superimposed fields having the same direction as the original 'measuring' field, but also for fields applied at right angles. We have been able to confirm this assumption by means of a new four-terminal capacitor element, which ...
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    Visual Aids and Wool (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 633-633 
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    Notes: [Auszug] IN a lecture to the London Schools' Film Society on March 6, Mr. P. A. Wells, director of education to the International Wool Secretariat, described the use of visual aids by his organisation. The International Wool Secretariat was set up by the Statutory Wool Boards of Australia, New Zealand and ...
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    Directorship of Aslib (1950)
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    Nature 165 (1950), S. 426-426 
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    Notes: [Auszug] Miss E. M. R. Ditmas Miss E. M. R. DITMAS retired on February 28 from her position as principal officer of Aslib (formerly the Association of Special Libraries and Information Bureaux, with which is incorporated the British Society of International Bibliography). She had occupied this post since ...
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    Electronic Resource
    Electronic Resource
    Medical Safeguards against X-Rays (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 633-634 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HANDBOOK 41 of the United States National Bureau of Standards, entitled "Medical X-ray Protection up to Two Million Volts" (pp. 43 ; Washington, D.C. : Gov. Printing Office, 1949 ; 15 cents), supersedes Handbook 20, which was last revised in 1936. The increasing use of high-energy X-rays in medical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165633e0
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    Electronic Resource
    Electronic Resource
    White Plaster Mould of Mushroom Beds (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 634-634 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A SUCCINCT account of Scopulariopsis fimicola, a fungal competitor on mushroom beds, is to be found in Bulletin No. 16 (July 1949) of the Mushroom Growers' Association. Infection is probably brought by air-borne spores and by flies. An interesting feature is the control by addition of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165634a0
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    Paper (German National Licenses)
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