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  • Nature Publishing Group  (3,051)
  • 1950-1954  (3,051)
  • 1952  (3,051)
  • 1
    Electronic Resource
    Electronic Resource
    Plant Viruses, Old and New (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1087-1088 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE modern study of plant viruses involves^the use of varied techniques and ramifies through much of the whole field of natural science. It is therefore a formidable task for any one investigator to collect together all the relevant information from such a wide field and present it in an ...
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    URL: http://dx.doi.org/10.1038/1701087a0
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  • 2
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    Towards the Absolute Zero (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1088-1088 
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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 four lectures in this volume were delivered at the Royal Institution, London, in February and March 1950, but the opportunity has been taken during the interval to revise the text and to bring the subject-matter up to date. The references include papers published as late as the first quarter of ...
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  • 3
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    Dynamo Currents and Conductivities in the Earth's Upper Atmosphere (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1093-1094 
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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] EXPERIMENTAL evidence has been obtained JOrf recently concerning magnetic discontinuities in the .EJ-layer of the ionosphere near the magnetic equator1. This communication deals with the conclusions which can be drawn from these results about electric currents and D.C.-conductivities in the D- and ...
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  • 4
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    Colour Television (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1094-1097 
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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 sixty-seventh science meeting of the Physical Society Colour Group, held on May 14, was devoted to a discussion on visual problems in colour television. Fortunately this followed immediately on Prof. W. D. Wright's return from the United States, where among his other commitments he had ...
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  • 5
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    Sir Charles Peers, C.B.E., F.B.A. (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1097-1097 
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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] SIB CHARLES REED PEERS, born in 1868, will be principally remembered as chief inspector of ancient monuments in the Office of Works. Educated at Charterhouse and King's College, Cambridge, he received his architectural training in the office of Sir T. G. Jackson. Peers's principal interest lay in ...
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  • 6
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    Division of Biochemistry, Massachusetts Institute of Technology: Prof. J. M. Buchanan (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1098-1098 
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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 DIVISION of Biochemistry in the Department of Biology has recently been started at the Massachusetts Institute of Technology, and Prof. John M. Buchanan, professor of physiological chemistry in the University of Pennsylvania, has been appointed the first professor and head of the Division as from ...
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  • 7
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    Technical Education in the North of England (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1099-1099 
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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 PAMPHLET entitled "Technical Education in the Northern Region'', giving a summary list of courses which are available in the technical, commercial and art colleges and institutes of Cumberland, Durham, the North Riding of Yorkshire, Northumberland and Westmorland, has been issued by a sub-' ...
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  • 8
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    Handbook of the New Zealand Department of Scientific and Industrial Research (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1099-1099 
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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 Department of Scientific and Industrial Research, New Zealand, has issued an illustrated and well-produced Departmental Handbook (pp. 68. Wellington : Govt. Printer, 1952) collecting much information previously only available from separate sources. An organization chart and brief account of the ...
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  • 9
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    The Night Sky in January (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1100-1100 
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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] FULL moon occurs on Jan. Od. 05h. 05m., U.T., and also on Jan. 29d. 23h. 44m., and new moon on Jan. 15d. 14h. 08m. The following conjunctions with the moon take place : Jan. 9d. 09h., Saturn 8 N. ; Jan. 19d. Olh., Mars 4 S. ; Jan. 19d. Olh., Venus 4 S. ; Jan. 23d. 02h., Jupiter 7 S. In addition to ...
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  • 10
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    Copyright and the Scientist (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1108-1109 
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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] TO the scientific man, nurtured in the tradition of the greatest possible freedom for the circulation and interplay of new scientific knowledge, anything that tends to restrict that freedom is liable to be irksome. If the Copyright Act of 1911 was guilty of causing (or more accurately of ...
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  • 11
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    Royal Greenwich Observatory: Annual Report for 1951–52 (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1111-1111 
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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 annual report of the Astronomer Royal for the period May 1, 1951-April 30, 1952*, deals with the three separate sections of the Royal Greenwich Observatory at Herstmonceux (including H.M. Nautical Almanac Office), Greenwich and Abinger, and provides an account of the work carried out at ...
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  • 12
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    Angular Distribution of the Neutrons from the Reaction 7 Li( d,n ) 8 Be (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1118-1119 
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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 energy spectrum for co = 140 is given in Fig. 1. Neutron groups are found corresponding to energy-levels in beryllium-8 at 2-9, 4-1 and 5-0 MeV. These results are in good accordance with previous measurements by Green and Gibson1. The energy spectra for the smallest three co-values also ...
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  • 13
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    Enhancement of Auroral Hydrogen Lines towards Lower Latitudes (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1120-1121 
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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] On this view the current density (i) of a bundle composed of electrons and protons is given by i = ne (Ve - Vp), (1) where n is the number of electrons or protons in unit volume, and Ve and Vp are the velocities of the electrons and protons respectively. The number of electrons ve and protons Vp ...
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  • 14
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    Crystal Distortion of Graphite in Cast Irons (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1123-1124 
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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 graphite samples used were a coarse flake graphite in a commercial grey cast iron, and a temper graphite in a commercial black-heart malleable cast iron of pipe fittings. The graphites were extracted from the cast irons by dissolving with hot dilute hydrochloric acid and washing with ...
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  • 15
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    Pan-American Institute of Geography and History (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1054-1054 
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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] AMONG the specialist agencies set up by the Governments of the American Republics is the Pan-American Institute of Geography and History (PAIGH). Much of the work of the Institute is carried out by the three Commissions which were set up at the fourth general assembly held at Caracas in 1946. These ...
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  • 16
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    The Energy Momentum Tensor in Dirac's New Electromagnetic Theory (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1126-1126 
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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 energy momentum tensor can be obtained by a different method, namely, by writing the metrical tensor giLlv explicitly in the Lagrangian function L and then considering the variation of the integral / L 'Vg *** with respect to g?v. In the non-vortical form of Dirac's theory, one has ...
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  • 17
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    Origin and Development of Axillary Buds in Jute (Corchorus capsularis) (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1128-1128 
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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 branching variety, D154, buds develop from a portion of apical meristem detached in the axils of leaves during vacuolation and growth, as described by Wardlaw in Matteuccia? and found in a great number of plants45 (Fig. 1). Such a detached meristem can be seen as 'shell zone'6 quite early, ...
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  • 18
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    Pectinase Technique for Isolating Plant Cells (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1070-1072 
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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] Fig. 1. A cell from the meristem of a lateral root of V. f aba macerated in a living condition by pectinase. The cell was mounted in Tyrode solution diluted four times and photographed, unstained, in green light; final magnification, about 1,150. Note the dark nucleolus surrounded by a clear ...
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  • 19
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    A Growth Interaction between β-Indolylacetic Acid and Thiourea (Thiocarbamide) (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1074-1074 
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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] Experiments carried out in this department show that thiourea also can interact synergistically with |3-indolylacetic acid when both are applied simultaneously in aqueous solutions to germinating Avena sativa seedlings. The effects are shown in root-growth following a 48-hr, treatment and during ...
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  • 20
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    Micro-forceps and Micro-scalpels (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1129-1130 
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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 points of type II are useful for holding very fragile objects. Type I can hold microscopical objects of various kinds, since the points can be modified to suit several purposes. Six modifications are shown in photograph III. The points shown are, respectively, in the form of: (1) strong ...
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  • 21
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    A Test for Montmorillonite (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1130-1131 
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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 hysteresis observed on drying is due to a decrease of the internal surface, which takes place in a random way and leads to the phenomenon of random inter-stratification in the re-solvated mineral. In consequence of this, the dried mineral also shows a marked decrease in exchange capacity due to ...
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  • 22
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    Reports and other Publications (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1132-1132 
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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] FORTHCOMING EVENTS Tuesday, December 30Friday, January 2 SCIENCE MASTERS' ASSOCIATION (in the Chemistry Departmer Royal College of Science, Imperial Institute Eoad, London, S.W.7).-Annual Meeting : "Science in the Service of the Community". Friday, January 2 INSTITUTION o MECHANICAL ENGINEERS ...
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  • 23
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    The Iris in the Southern Hemisphere (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1037-1037 
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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 Britain lovers of the iris are generously provided with works of reference. Apart from W. R. Dykes's large monographic study of the genus, still the standard work and long likely to remain so, there are his shorter works and numerous papers on the culture and breeding of these plants, and, as ...
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    Accuracy and Sensitivity of the Human Eye (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1039-1042 
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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] IT is well known that the sensitivity of the human retina is so high that a few quanta absorbed by the retinal photoreceptors can initiate a visual response1"5. We wish to show here that this finding, obtained in special laboratory experiments, is also valid for ordinary vision over a wide ...
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  • 25
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    Prof. E. G. Conklin (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1046-1046 
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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] BY the death of Edward Grant Conklin we have lost the last representative of the great American school of classical experimental embryology which dominated this science in the period from 1900 until the rise of the Spemann school in the 1920's. Conklin retired in 1933 from the professorship of ...
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    Long Range Weapons Establishment, Australia: Dr. C. F. Bareford (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1047-1047 
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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] DR. C. F. BAREFORD has been appointed to the post of chief superintendent of the Long Range Weapons Establishment, Australian Department of Supply, in succession to Mr. H. C. Pritchard, who returns to the United Kingdom next year. In his new office, Dr. Bareford will be responsible for the ...
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    The Imperial Institute (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1048-1048 
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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 House of Lords on December 9, Viscount Falmouth, directing attention to the report of the Tweedsmuir Committee on the Imperial Institute, asked whether the Government would consider the transfer of the Institute to a more suitable place and thus free the present site for expansion of the ...
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    Agricultural Education (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1049-1049 
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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 Minister of Agriculture and Fisheries, after consultation with the Minister of Education, has set up a 'working party' with the following terms of reference: "To review the relations between the agricultural education service of Local Authorities and the National Agricultural Advisory Service, ...
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    Reactivity of Protein Fibres (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1054-1055 
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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] DURING the annual conference of the Society of Leather Trades' Chemists, held at the University of Leeds during September 19-20, the fifth Procter Memorial Lecture was delivered by Prof. J. B. Speakman, professor of textile industries in the University of Leeds, his subject being "The Reactivity of ...
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    Thermodynamics of Irreversible Electrochemical Processes (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1028-1028 
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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] As a result of their second treatment, these authors deduce that electrical potential differences are (in principle) measurable apart from differences in ionic chemical potentials, provided that an electrical space charge is present, that is, in nearly insulating media but not in media showing any ...
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    Gravitational Instability of a Turbulent Medium (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1030-1030 
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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] First, we should like to point out that because of the slow change in density in this process, the temperature will not vary adiabatically, as in the case of the relatively high frequencies involved in most acoustic radiation, but rather will approximately obey a polytrope law of the form '(2) ...
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    Education and Training of Metallurgists (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 989-990 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A JOINT Committee on Metallurgical Education was formed in 1945 by the councils of the Iron and Steel Institute, the Institution of Mining and Metallurgy, the Institute of British Foundrymen, the Institute of Metals and the Institution of Metallurgists to advise them on all matters concerning ...
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    An Essay on Morphogenesis (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 943-944 
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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 subject of morphogenesis can be approached from many different points of view. In this very readable 'essay' Dr. Bonner has drawn widely on both the plant and animal kingdoms, especially the lower groups, to illustrate particular points. In general, his subject-matter will be familiar to those ...
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    Sunspots during January—April 1952 (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1003-1003 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] AN account by Lucy T. Day of the positions, areas and counts of sunspots during the period January-April 1952 is given in United States Naval Observatory Circular No. 36 (June 18, 1952). The results, tabulated in seven pages of the Circular, are based upon measurements made at the Naval Observatory ...
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    International Scientific Film Association: Sixth Annual Congress (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1005-1006 
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    Notes: [Auszug] THE growing strength of the international scientific film movement was well in evidence at the annual congress of the International Scientific Film Association, held in the Maison de la Chimie, Paris, during September 23-October 1. During the congress, the acceptance of three countries as new ...
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    International Council of Scientific Unions: General Assembly in Amsterdam (1952)
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    Nature 170 (1952), S. 960-961 
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    Notes: [Auszug] THE sixth general assembly of the International Council of Scientific Unions was held in tne rooms of the Koninklijke Nederlandse Akademie van Wetenschappen in Amsterdam during October 1-3. Twenty countries were represented. Prof. H. R. Kruyt, president of the Division of Sciences of the Academy ...
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    United States Pulp and Paper Industries (1952)
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    Nature 170 (1952), S. 965-965 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a world where raw materials of all sorts are at a premium, a publication, No. 1 of the Royal School of Forestry, Stockholm, entitled "U.S. Pulp and Paper Industry with Special Reference to its Supply of Raw Material"*, is of particular interest. The consumption in the United States of paper ...
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    Pear-Apple Hybrids (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1017-1017 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] (a) (b) (c) (a) Pear; (b) surviving pear-apple hybrid; (c) dying psar-apple the hybrids on to apple seedlings, it appears that difficulty in growth may be overcome. One seedling in each family has been examined cytologically by Mr. R. D. Brock: the one in which the tetraploid apple was the male ...
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    Differences in the Biological Activity of 2 : 3 : 5 : 6-Tetrachloronitrobenzene and its Isomers (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1022-1022 
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    Notes: [Auszug] The 2:3:5:6 symmetrical isomer, formulated as a dust, has been used ruccessfully to control Botrytis disease of lettuce2 and dry rot of seed potatoes3, and it has been shown to inhibit the sprouting of potatoes4'5. In our experiments, against normal strains of Fusarium cceruleum (Lib.) Sacc. in ...
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    Enhancement of Streptococcal Bacteriophage Lysis by Hyaluronidase (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1020-1021 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tests were made to find the smallest amount of purified hyaluronidase (Bengers) which prevented capsule formation in serum broth. In the subsequent tests with phages, five times this concentration was used. Two phages, which ordinarily gave only partial clearing in broth, were added, together with ...
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    The Stauromedusan Craterolophus tethys Clark in British Waters (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1023-1024 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Stauromedusae make sporadic and infrequent appearances on the Yorkshire coast. Haliclystus octoradiatus and a supposed Lucernaria campanulata were first recorded from the Scarborough area in 1913 4, but neither was seen again for nearly ten years56. Since the second appearance there have been no ...
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    Mode of Action of Agents giving Protection from Radiation (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1022-1023 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since polymethacrylic acid is not degraded by comparable doses of X-rays in the absence of air (see Table 1) the primary products of the radiolysis of water, that is, hydrogen atoms and hydroxyl radicals, cannot be responsible for the breaking of carbon-carbon bonds in this system. The perhydroxyl ...
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    Mechanical Engineering in Manchester: Prof. Jack Diamond (1952)
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    Nature 170 (1952), S. 953-953 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Council of the University of Manchester has announced the appointment of Mr. Jack Diamond to the first chair of mechanical engineering in the Faculty of Science. This is additional to the Beyer chair (founded in 1868 and first held by Osborne Reynolds) and the chair of electro-technics (1912). ...
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    Four-strand Crossing-over (1952)
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    Nature 170 (1952), S. 986-986 
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    Notes: [Auszug] This model seemed to us biologically unsatisfactory; we therefore applied Owen's treatment of sequential events to chiasma formation in a four-strand model, which allowed an explicit treatment of chromatid as well as chiasma ...
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    A Commonwealth Institute in London (1952)
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    Nature 170 (1952), S. 899-901 
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    Notes: [Auszug] IT is clear from the Minister of Education's foreword to the report of the committee of inquiry, into the Imperial Institute* that no immediate action on the report is contemplated by the Government. Mr. K. G. Bradley (see p. 912) has been appointed director in succession to Sir Harry Lindsay, ...
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    Foot-and-Mouth Disease Research in Great Britain (1952)
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    Nature 170 (1952), S. 908-909 
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    Notes: [Auszug] AN interim report on the research work carried out on foot-and-mouth disease at the Research Institute, Pirbright, has recently been published by the Agricultural Research Council*. The report deals only briefly with the many researches already done and the activities now in progress; this ...
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    Nobel Prize for Physics, 1952 (1952)
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    Nature 170 (1952), S. 911-912 
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    Notes: [Auszug] THE Nobel Prize for Physics for 1952 has been awarded jointly to Prof. E. M. Purcell, of Harvard University, and Prof. Felix Bloch, of Stanford University, California. Prof. E. M. Purcell Prof. E. M. Purcell, who was born in 1912, graduated from Purdue University with a B.Sc. in 1933 and spent ...
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    Colorimetric Determination of Formaldehyde under Mild Conditions (1952)
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    Nature 170 (1952), S. 976-976 
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    Notes: [Auszug] Detailed accounts of this work will be submitted ...
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    Relation between Total and Exchangeable Sodium in the Body (1952)
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    Nature 170 (1952), S. 979-979 
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    Notes: [Auszug] In order to study directly the relationship between total sodium and exchangeable sodium, sodium-24 was injected intravenously into six adult, well-nourished rabbits. Blood samples were taken periodically and analysed for their radioactivity and sodium content. After varying times (6-96 hr.), the ...
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    Migration and Gregarious Æstivation in the Bogong Moth, Agrotis infusa (1952)
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    Nature 170 (1952), S. 981-982 
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    Notes: [Auszug] Aggregations of A. infusa have been studied during the past two summers at several sites, between 4,000 ft. and 6,000 ft., on the Brindabella Range in the Australian Capital Territory. Moths began to assemble on the mountain tops late in October and the populations reached a maximum before ...
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    Biology of Deserts (1952)
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    Nature 170 (1952), S. 951-953 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A SYMPOSIUM on "The Biology and Productivity of Hot and Cold Deserts", organized by the Institute of Biology, was held at the Royal Institution during September 25-27. It consisted of six sessions devoted to various aspects of desert biology: climate and physical environment; plant ecology; ...
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    Automatic Particle-Sizing by Successive Countings (1952)
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    Nature 170 (1952), S. 984-985 
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    Notes: [Auszug] It is obvious that if the geometry of the scanning aperture or the response-level of the detecting device can be arranged so that the number of pulses recorded is dependent on the size of the particles, then the size distribution can be obtained by repeated counting with different scanning ...
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    Appointments Vacant (1952)
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    Nature 170 (1952), S. 987-988 
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    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned: BACTERIOLOGIST (honours graduate, preferably with research experience) to work on problems of hygiene in the dairy industry The Secretary, National Institute for Research in Dairying, Shinfield, Reading, ...
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    Diurnal Variations in the Blood Picture of Cattle (1952)
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    Nature 170 (1952), S. 934-935 
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    Notes: [Auszug] Haemoglobin figures (estimated by Sahli) varied little and may be regarded as usually constant. The normal variation did not exceed 1 gm. per 100 c.c. The red-cell count varied over two million on initial counts of seven million to ten million. Maximum variations of the packed cell volume occurred ...
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    Zoological Nomenclature (1952)
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    Nature 170 (1952), S. 938-938 
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    Notes: [Auszug] (1) Sphinx Linnaeus, 1758 (Cl. Insecta, Ord. Lepi-doptera) (designation of type species); (2) Houttuyn (M.H.), 1787, Animalium Musei Houttuinensi Index (suppression); (3) Phalcena Linnaeus, 1758 (Cl. Insecta, Ord. Lepidoptera) (suppression, and validation as of generic status of eight terms used by ...
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    Forthcoming Events (1952)
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    Nature 170 (1952), S. 939-939 
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    Notes: [Auszug] (Meetings marked with an asterisk * are open to the public) Monday, December I ':' Royal Society (at Burlington House, Piccadilly, London, W.I), at ^ 2.30 p.m.Anniversary Meeting. w* Royal Geographical Society (at 1 Kensington Gore, London, S.W.7), at 5 p.m.Mr. G. de Q. Robin and Mr. ...
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    Horses (1952)
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    Nature 170 (1952), S. 856-857 
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    Notes: [Auszug] SO much of human history has been determined by the existence of domesticated horses that these animals have gained a unique place in folk-lore and in the affections of many men. The horse was apparently domesticated early (probably many times) in the area of distribution of wild horses from Europe ...
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    The Phase Rule (1952)
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    Nature 170 (1952), S. 859-859 
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    Notes: [Auszug] THE introduction of the phase rule into chemistry dates from 1884, when Bakhuis Roozeboom, working in the laboratory of van Bemmelen in Leyden on hydrates of sulphur dioxide, had his attention directed by van der Waals to a rather obscure and brief passage in a paper by Willard Gibbs, published in ...
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    Role of Water in the Structure of Psilomelane, (Ba,H 2 O) 2 Mn 5 O 10 (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 973-974 
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    Notes: [Auszug] The structure, determined by Fourier methods, is based upon double and treble strings of manganese-oxygen octahedra linked in an approximately rectangular grouping by sharing corners to form tunnels parallel to the 6-axis (Fig. 1). These enclose barium ions and water molecules which are ...
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    Electronic Orbitals, Shapes and Spectra of Polyatomic Molecules (1952)
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    Nature 170 (1952), S. 974-975 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For some time I have been interested in this problem of the shapes of electronically excited molecules. My procedure has been first to decide the molecular orbitals possible for two particular shapes of a particular molecule; then to decide which orbital of the one symmetry class must transform to ...
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    A Substance in Animal Tissues which stimulates Ketone-Body Excretion (1952)
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    Nature 170 (1952), S. 976-977 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The present study has been devoted to the isolation and characterization of the substance in meat which produces ketonuria when administered to an animal on a high fat diet. Normal black-and-white male rats of the inbred laboratory strain and weighing approximately 180 gm. were placed on a diet ...
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    Isolation of a Soluble Fibrinolytic Activator from Animal Tissue (1952)
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    Nature 170 (1952), S. 929-929 
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    Notes: [Auszug] When bovine lung tissue was treated as described for the preparation of fibrinokinase, no fibrinolytic activator was obtained, but the tissue acted as a powerful inhibitor of trypsin and plasmin4. Recently5, we succeeded in isolating from this tissue a soluble protease inhibitor by extraction with ...
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    Four-strand Crossing-over (1952)
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    Nature 170 (1952), S. 985-986 
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    Notes: [Auszug] Carter and Robertson object to my view2'3 that in many situations it is unnecessary to consider explicitly the detailed interaction of the four strands of a meiotic bivalent in bringing about genetical recombination. Such situations are those in which the observed frequencies are determined only by ...
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    The International Council for the Exploration of the Sea (1952)
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    Nature 170 (1952), S. 906-908 
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    Notes: [Auszug] ON the twenty-fifth anniversary of the International Council for the Exploration of the Sea, the late Mr. H. G. Maurice, then in the mid-period of his long and lustrous presidency, said that the Council was a plant sown in Sweden, which had germinated in Norway and flowered in Denmark. It is ...
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    Extractability of the Lotmar–Picken Material from Dried Muscle (1952)
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    Nature 170 (1952), S. 882-882 
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    Notes: [Auszug] Whole muscle Lotmar-Picken material Substance 'X' Extract (continuous Equator First layer line circles) 0-075 m 0 -080 m 0-076m U) 0 -086 vw 0-105 vw 0-107 m 0-106 m (LP) 0-118 s 0-118 m (X) 0-127 m 0-127m (LP) 0-128 vw 0-135 w 0-133 w (LP) 0-140 w 0-139W ...
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    Ultra-Violet Band System of Strontium Oxide (SrO) (1952)
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    Nature 170 (1952), S. 885-886 
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    Notes: [Auszug] The ultra-violet band system of strontium oxide, situated between X 3200 and X 3700 A., has been investigated with the 21-ft. grating of this institute. The rotational analysis of the 2,0, 1,0 and 0,0 bands shows that the system is a 1H - 1S transition, where the lower state is the same as that of ...
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    Fulmer Research Institute: Open Day (1952)
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    Nature 170 (1952), S. 880-881 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] AN open day was held at the Fulmer Research Institute on September 30 to mark the completion of the first five years of work at the Institute; it was also the occasion for unveiling a memorial plaque to the founder, the late Colonel W. C. Devereux. After welcoming the guests, Mr. Percy Horsfall, ...
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    Is α-Keratin a Coiled Coil? (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 882-883 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] There are certain difficulties in this idea. One of the main features of a-keratin is the strong reflexion at 5'15 A. on, or very close to, the meridian. The normal a-helix gives strong reflexions on the 5-4-A. layer line, but displaced from the meridian. The difference in spacing is not an ...
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    An Easily Used Ultra-Violet Microscope Objective (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 883-884 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The numerical aperture of a reflecting objective may be increased by a factor [i when a normal-incidence immersion lens of refractive index \i is placed over the object (cf. ref. 4, for example). The lens and two mirrors of the objective must all be adjusted relative to each other, and, as this is ...
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    Corticium praticola Kotila; an Interesting Basidiomycete occurring in England (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 892-892 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] This is the first record of this fungus from Great Britain, and the first confirmatory record of Kotila's original work. D. P. Rogers2, in dealing with the genus in 1943, failed to accept the species due to absence of original material and lack of confirmatory isolations. The fungus was obtained ...
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    Isolation of Triploid Saccharomyces cerevisiæ (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 892-893 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] A diploid clone was isolated (by the method of Pomper and Burkholder7) which required adenine and uracil for growth, that is, was homozygous for recessive alleles for adenine and uracil syntheses. This diploid was heterozygous for mating type (a and a of Lindegren and Lindegren8), and for genes ...
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    Apparent Fumigant Action of Non-volatile Insecticides in African Huts (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 893-893 
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    Notes: [Auszug] Since then, tests have been done (G. F. B.) by filtering the air in a hut sprayed with dieldrin wet-table powder five weeks previously. The apparatus used consisted of fumigant chambers made from 1-lb. glass jars fitted with waxed bungs. Air was removed from the top of the jar through a tube by ...
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    A Sparing Effect by Formate or Methanol on the Impairment of Creatine Metabolism in Folic Acid Deficiency (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 894-895 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Twenty-four adult mice (inbred Swiss strain) were maintained on a folic acid - free purified ration1 with 15 gamma per cent of vitamin B12 and 0-3 per cent iodinated casein. At the end of 5 weeks, when folic-acid deficiency could be inferred from observations on red and white cell counts and ...
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    Two Forms of 1 : 2 : 3 : 5 Tetra-Acetyl D -Ribofuranose (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 896-896 
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    Notes: [Auszug] Some time ago, I prepared this compound (using the method of Zinner4) in the lower-melting form (melting point 56 o 5 °-57 °). When a comparison with the higher-melting form (generously provided by Dr. Zinner, of Jena) was attempted, the whole of the material isomerized, and the form of ...
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    Miss K. C. Boswell (1952)
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    Nature 170 (1952), S. 825-826 
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    Notes: [Auszug] Miss KATHARINE CTJMMING BOSWELL, born in October 1889, died on September 19, of heat stroke, at Beni Abbes, deep in the Sahara. During her adult life she had a very close connexion with the (then) University College, Southampton. She was a student before and after the First World War; in 1926 she ...
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    British Electronic Instruments in Research and Industry (1952)
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    Nature 170 (1952), S. 877-878 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] DURING the period September 2-5 the Scientific Instrument Manufacturers' Association of Great Britain held, in London, an exhibition of electronic instruments, and associated with this was a symposium of papers describing the application of such instruments in research and in industry. This was the ...
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    Indian Association for the Cultivation of Science (1952)
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    Nature 170 (1952), S. 881-881 
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    Notes: [Auszug] THE annual report of the Indian Association for the Cultivation of Science for 1951-52* records the completion of the transfer to the Association's new buildings at Jadarpur and the removal of the Department of Organic Chemistry in June 1951, but research work was considerably curtailed by the ...
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    The Hardness of Metals (1952)
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    Nature 170 (1952), S. 818-818 
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    Notes: [Auszug] STANDARD text-books satisfactorily describe the various techniques of hardness testing and critically discuss their relative advantages and disadvantages in practice. They do not, however, provide any clear understanding of what is meant by 'hardness'; nor do they explain the hardness behaviour of ...
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    A New Method for the Bioassay of Cholinesterase Inhibitors (1952)
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    Nature 170 (1952), S. 843-844 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The choice of such an aquatic organism was based on the following considerations: (a) the aqueous medium provides a uniform environment and allows of accurate administration of toxic agent; (6) circulation of water through a gill system is likely to facilitate absorption; (c) the presence of a ...
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    Reversal of the Heart-beat in Tunicates (1952)
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    Nature 170 (1952), S. 851-852 
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    Notes: [Auszug] I have found rings of fusiform cells in the heart of Ciona intestinalis (L) which seem to correspond to those described by Hunter1, but they are connective tissue cells and not nerve cells, being the ends of sheets of connective tissue that line the large blood vessels at their cardiac junction. ...
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    Reopening of the Mining Collection at the Science Museum, London (1952)
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    Nature 170 (1952), S. 828-828 
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    Notes: [Auszug] THE Mining Collection at the Science Museum, South Kensington, London, S.W.7, will be reopened in much enlarged form by the Right Hon. Geoffrey Lloyd, Minister of Fuel and Power, on November 18. The basic conception in the design of the new Collection, which occupies an area of nine thousand square ...
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    Announcements (1952)
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    Nature 170 (1952), S. 829-829 
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    Notes: [Auszug] H.R.H. THE DUKE OF EDINBURGH has been elected president of the Royal Society of Arts. Her Majesty the Queen, who, as Princess Elizabeth has been president since 1947, now becomes patron. THE Lord President of the Council has appointed Sir Hugh Beaver, managing director of Arthur Guinness, Son and ...
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    Enzymic Degradation of Pectic Acid and the Complex Nature of Polygalacturonase (1952)
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    Nature 170 (1952), S. 834-836 
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    Notes: [Auszug] THE pectic enzymes produced by Aspergillus 1 fcetidus, Thorn and Raper, when the organism is grown on solid bran media [(S) type], are different from those produced by growth in submerged culture in liquid media [(D) type]. The (D) preparations have an optimum £〉H of 5-3 on sodium pectate ...
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    N.P.L. Colour Temperature Scale (1952)
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    Nature 170 (1952), S. 783-784 
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    Notes: [Auszug] IN July of this year the Director of the National Physical Laboratory announced that in future the 1948 International Temperature Scale would be used in assigning colour temperatures to light sources calibrated at the Laboratory. Previously, the 1927 International Temperature Scale had been used. ...
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    Fourteenth International Congress of Zoology, Copenhagen (1952)
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    Nature 170 (1952), S. 784-784 
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    Notes: [Auszug] THE Fourteenth International Congress of Zoology will be held in Copenhagen during August 5-12, 1953, under the presidency of Prof. R. Sp rck, with Dr. Anton Fr. Bruun as secretary-general. It is proposed to hold three general meetings for all members of the Congress; but otherwise the proceedings ...
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    Spread of Pigment in Sheep Skin Autografts (1952)
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    Nature 170 (1952), S. 849-850 
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    Notes: [Auszug] In the black skin of sheep, pigmented dendritic cells are present in the hair matrix of hair follicles and in varying concentrations in the root sheaths and the basal layer of the epidermis. Boyd5 showed that dihydroxyphenylalanine-positive but unpig-mented dendritic cells were present in the same ...
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    Level of National Intelligence (1952)
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    Nature 170 (1952), S. 852-852 
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    Notes: [Auszug] The former cause is suggested by the results of previous investigations in which attempts to hold constant such factors as parental occupation or overcrowding in the home have failed to dispel the negative correlation; but such methods are not adequate if the actual size of family is itself an ...
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    University of Leeds (1952)
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    Nature 170 (1952), S. 784-784 
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    Notes: [Auszug] THE University of Leeds has conferred the title of emeritus professor upon Prof. J. W. McLeod on the occasion of his retirement from the Brotherton chair of bacteriology. The following have been appointed lecturers in the University: Dr. R. W. Owen (zoology), F. R. Mobbs (mechanical engineering), ...
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    [Book Reviews] (1952)
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    Nature 170 (1952), S. 727-727 
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    Notes: [Auszug] THE term lipid has been interpreted- in its fullest sense, and the author discusses not only the simple lipids (fats and waxes, 405 pages) but also the compound lipids (phosphatides and cerebrosides, 102 pages) and the derived lipids (carotenoids, 160 pages, and vitamins A, D, E and K, 194 pages). ...
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    Afforestation of Moorland (1952)
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    Nature 170 (1952), S. 734-736 
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    Notes: [Auszug] AT the meeting of the British Association in Belfast, Section K* (Forestry) devoted a session during the morning of September 8 to the consideration of sylvicultural problems resulting from recent large-scale planting on moorland soils. The need for a considerable extension of the forest area ...
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    Regional Scientific Advisers for Civil Defence (1952)
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    Nature 170 (1952), S. 737-737 
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    Notes: [Auszug] THE organization of regional scientific advisers for civil defence in Great Britain, which has been set up by the Home Office, is now virtually complete. Many of the leading scientific men of the country have responded to the appeal of the Home Secretary and the Secretary of State for Scotland, and ...
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    Viscosity and Thermal Conductivity of Liquid Argon (1952)
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    Nature 170 (1952), S. 794-794 
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    Notes: [Auszug] Now if this simple theory has any physical meaning, the ratio of the thermal conductivity k to the coefficient of viscosity at the melting point should be given by considerations similar to those which apply in the case of gases. We are led to the formula: k 0 - = BcL, (2) where c , is the ...
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    Relations between Small-Angle Interferences of Silk and the Wax Content (1952)
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    Nature 170 (1952), S. 796-797 
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    Notes: [Auszug] This was to be expected, since Bergmann4 has found liquid fatty acids in extracted silk wax, and linoleic and linolenic acid have been extracted from cocoons of Bombyx mori5. Bergmann, investigating the relations between fat content and mechanical properties, could not find any quantitative ...
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    Salting-out Chromatography of Amino-acids and Peptides in Filter Paper and other Media (1952)
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    Nature 170 (1952), S. 799-800 
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    Notes: [Auszug] In general, it is to be expected that the adsorption will increase as the solubility is reduced by changes in the medium which do not appreciably affect the adsorbing surface3. Recently, we have found that amino-acids and peptides show the same phenomenon both on charcoal and filter paper, and it ...
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    Isolation of Phosphothreonine from Bovine Casein (1952)
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    Nature 170 (1952), S. 804-805 
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    Notes: [Auszug] To investigate this, bovine casein was hydrolysed and a barium complex prepared, according to Lip-mann. The barium was removed with a cation-exchanger (T)owex 50'), and further purification was obtained by displacement on an anion-exchanger ('Dowex 2'), by the method of Partridge and Brimley3. For ...
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    Extrusion of Nucleolar Material in the Female Germ-Cells of Lumbricus terrestris L. (1952)
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    Nature 170 (1952), S. 757-757 
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    Notes: [Auszug] My preparations of the ovaries of Lumbricus, fixed in Bouin's fluid and stained with Ehrlich's hsem-atoxylin or iron-hsematoxylin, show convincingly that extrusion of nucleolar material takes place. The nucleolus is stained a purplish colour with Ehrlich's hsematoxylin. Often the nucleus contains ...
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    Academic Freedom in the Modern State (1952)
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    Nature 170 (1952), S. 721-723 
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    Notes: [Auszug] THE appearance after an interval of two years of a new review of the activities of the Rockefeller Foundation* would in any event be of considerable interest, and especially as in this survey Mr. Chester Barnard attempts to re-assess the objectives of the Foundation and its position in the ...
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    Development of Backward Countries (1952)
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    Nature 170 (1952), S. 677-680 
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    Notes: [Auszug] PROF. A. V. HILL'S presidential address to the British Association should dispel any facile optimism as to the ability of science and technology to increase the world's food supplies or to develop world resources generally sufficiently rapidly to overtake the demands of a rapidly increasing world ...
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    Electronic Resource
    Meteorology and Agriculture (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 738-738 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sm ROBERT WATS ON-WATT, in his presidential address in 1951 to the Royal Meteorological Society, suggested a number of steps which might be taken to match meteorology to man's needs. One was for the Society to set up 'Interest Groups' for such subjects as agriculture and horticulture, fishing, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170738c0
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    Electronic Resource
    Electronic Resource
    The Night Sky in November (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 738-739 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FULL moon occurs on Nov. Id. 23h. 10m., TJ.T., and new moon on Nov. 17d. 12h. 56m. The following conjunctions with the moon take place: Nov. 2d. 15h., Jupiter 7 S.; Nov. 15d. 06h., Saturn 7 N.; Nov. 19d. 03h., Mercury 2 N.; Nov. 20d. llh., Venus 1 N.; Nov. 22d. 05h., Mars 0-2 S.; Nov. 29d. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170738f0
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