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  • Articles  (3,051)
  • Nature Publishing Group  (3,051)
  • 2005-2009
  • 1950-1954  (3,051)
  • 1952  (3,051)
  • 101
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    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 539-539 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Work which we have carried out over a number of years and which will be published elsewhere has led us to believe that the b hmite which is encountered in the dehydration of both gibbsite and bayerite is produced by secondary reactions between the original dehydration products, which are virtually ...
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  • 102
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    Nature 170 (1952), S. 541-542 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In epithelial cells of the duodenum of the mouse we have not been able to demonstrate to our complete satisfaction that the droplets stainable supra-vitally with methylene blue and neutral red ('lipo-chondria'1) are identicalwith the substance stainable with sudan black in fixed material. The Golgi ...
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  • 103
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    Nature 170 (1952), S. 545-546 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] With the view of gaining some insight into the mechanism, glucose and acetoacetate (sodium salt), both separately and combined, were added to the medium used for germination of a legume-green gram (Phaseolus mungo}. The seedswere first soaked in glass-distilled water for about three hours prior to ...
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  • 104
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    Nature 170 (1952), S. 547-547 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Those who describe electronic digital computors often use the term 'instruction', for example, when speaking of what is done to the machine by the operator. The word 'teaching' has even crept in. In engineering, the words 'setting' or 'adjustment' have exactly the same meaning. Why not use them? ...
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  • 105
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    Nature 170 (1952), S. 465-468 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FIVE years ago, the Federation of British Indus-tries published a statistical survey of scientific and technical research in British industry, based on an inquiry conducted during 1945-46 by its Indus-trial Research Committee. That survey was of particular interest as providing a forecast of the ...
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  • 106
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    Nature 170 (1952), S. 470-471 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WITH these three stately volumes, the scholars of the Husserl-Archiv at Louvain bring their immediate task to an end. It would, however, be incorrect to write "Husserliana concluded", because there is some reason to suppose that further material of outstanding consequence to philosophers is still ...
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  • 107
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    Nature 170 (1952), S. 543-544 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Blood withdrawn directly from the ovarian vein of ewes contained progesterone in concentrations ranging from 0-5 to 2 (gm. per ml. (see table). On the other hand, all attempts to detect progesterone in peripheral blood were consistently negative, both in pregnant and non-pregnant animals, in mare, ...
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  • 108
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    Nature 170 (1952), S. 546-547 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During an investigation of the mating system in Danish baking yeast, Saccharomyces cerevisice, three such 'highly fertile' cultures were found. Each of them showed the formation of copulation tubes with both the tester strains. When original cultures were examined, abundant copulation tubes and ...
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  • 109
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    Nature 170 (1952), S. 468-469 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS book, which appeared appropriately as Lord JL Russell celebrated his eightieth birthday, has more unity than might be expected from the pre-fatory statement that it is based upon lectures originally given at Ruskin College, Oxford, and that the last chapter, which discusses the stability of a ...
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  • 110
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    Nature 170 (1952), S. 471-471 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR WILLIAM TAYLOR, who was for many years a member of the Forestry Commission of Great Britain, ultimately becoming director-general, ad-dresses this book to "the owners, agents and foresters who are concerned with the management of private estate woods". As this is one of the few books of any ...
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  • 111
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    Nature 170 (1952), S. 471-472 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE dusky-footed wood rat (Neotoma fuscipes Baird.) is a medium-sized rodent native to North America. It and other species of the genus Neotoma are also called pack rats, trade rats, brush rats and cave rats. It rarely leaves its normal living-quarters in the wilds, though it sometimes comes to ...
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  • 112
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    Nature 170 (1952), S. 473-473 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS book consists of six broadcasts delivered by Canon C. E. Raven. It suffers from the unavoid-able defects of all broadcasts-the covering of too much ground with too few words, of using insufficiently established premises and of leaving a multitude of loose ends. Such a book should be regarded ...
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  • 113
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    Nature 170 (1952), S. 890-890 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Contrary results have, however, been found by other workers. In the Poperinghe district of Belgium, a detailed study of the chemical and physical composition of the soil and its influence on the resin content of the hop was made by de Koker, Verbelen and Van der Velde4; no relationship could be ...
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  • 114
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    Nature 170 (1952), S. 892-893 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    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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  • 115
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    Nature 170 (1952), S. 484-484 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the communication "Micro-spherical Aggregation of Barium Sulphate'' in Nature of September 6, p. 423, by D. I. Stock, in column 2, line 3, for "of the spheres" read "of the barium sulphate within the ...
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  • 116
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    Nature 170 (1952), S. 487-487 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE annual report for 1951-52* of the Council for the Preservation of Rural England again stresses the need for a dispassionate assessment of the country's national resources in land as a whole, but records the view of the Council that the balance needs to be redressed more in the direction of ...
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  • 117
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    Nature 170 (1952), S. 488-489 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FROM a study of the daily meteorological ionospheric and geomagnetic observations made near London during January April 1949, Beynon and Brown1 concluded "that quite marked 27-day recurrence tendencies may sometimes occur throughout the terrestrial atmosphere from the ground to the highest levels, ...
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  • 118
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    Nature 170 (1952), S. 893-893 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    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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  • 119
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    Nature 170 (1952), S. 894-894 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has now been found that ketoses or ketose-containing sugars yield products which are soluble in aqueous alkalis with an intense orange-brown colour; by carrying out the reaction in the manner described below, it is possible to distinguish between ketoses and other sugars, and even between ...
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  • 120
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    Nature 170 (1952), S. 894-895 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    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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  • 121
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    Nature 170 (1952), S. 895-896 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Histological and histochemical observations on the process of cornification elicited by the two routes of administration have been made. No qualitative differences were noted. Freud2, in a similar investigation with rats, also failed to detect any differences. However, there are temporal ...
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  • 122
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    Nature 170 (1952), S. 896-896 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    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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  • 123
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    Nature 170 (1952), S. 504-504 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (Meeting marked with an asterisk * is open to the public) Monday, September 22 INSTITUTION OF MINING AND METALLURGY (at the Boyal Institution, 21 Albemarle Street, London, W.I), at 5 p.m. Prof. A. M. Gaudin: "Radioactivity in Mineral Dressing" (Third Sir Julius Wernher Memorial Lecture). ...
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  • 124
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    Nature 170 (1952), S. 440-440 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE president-elect of the British Association for 1953, when the annual meeting will be held in Liverpool, is Sir Edward Appleton, principal and vice-chancellor of the University of Edinburgh since 1949. Sir Edward is well known among men of science both as an original investigator of outstanding ...
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  • 125
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    Nature 170 (1952), S. 441-441 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A CACAO-COLLECTING expedition to Colombia has been organized by the Imperial College of Tropical Agriculture, Trinidad, and the Government of Colombia, and the advance party, consisting of F. W. Cope (plant breeder and expedition leader), R. E. D. Baker (plant pathologist) and D. J. Taylor ...
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  • 126
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    Nature 170 (1952), S. 442-442 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A REVIEW of Plant Pathology, a new quarterly journal, appeared in Nature of June 21, p. 1050. One of the papers included in this first number concerned the results of trials by H. V. Thompson and C. J. Armour of rabbit repellents for use on fruit trees. The best of these was erroneously given as ...
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  • 127
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    Nature 170 (1952), S. 444-445 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE summer conference of the Society for Applied Bacteriology was held during July 22-24 in Newnham College, Cambridge, and included a symposium, sessions for reading papers and visits to places of interest. At the annual general meeting, Dr. J. G. Davis (London) was elected president for the ...
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  • 128
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    Nature 170 (1952), S. 445-446 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT the thirty-second annual general meeting of the Institute of Physics, held on June 5 at the Institute's House, 47 Belgrave Square, London, S.W.I, the following were elected to take office on October 1: President, Dr. C. Sykes; Vice-Presidents, Mr. O. W. Humphreys and Dr. T. L. Ibbs; Honorary ...
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  • 129
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    Nature 170 (1952), S. 446-447 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE exorbitant cost of German medical and scientific periodicals has once again become the concern of those who budget for university and other learned libraries. The cost of English periodicals has continued to rise, although slightly, owing to increased cost of publication; still more has the ...
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  • 130
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    Nature 170 (1952), S. 450-451 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHETHER or not phase separation will occur in VV a liquid system is a question of the mutual solubilities of its components. It is usually assumed that, if pressure and relative composition are held constant, the temperature alone determines these solubilities and thereby decides the question of ...
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  • 131
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    Nature 170 (1952), S. 456-456 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In this connexion, I wish to state that I have recently produced silver films possessing a reflectivity of 94 per cent and an absorption coefficient as low as 0-03 for X 5461 A., so giving an efficiency similar to that recorded by Kuhn and Wilson2 for an aged silver film at 5200 A. Extreme care ...
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  • 132
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    Nature 170 (1952), S. 459-460 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
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  • 133
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    Nature 170 (1952), S. 463-463 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (Meeting marked with an asterisk * is open to the public) Monday, September 15-Friday, September 19 INSTITUTE OF METALS (at Oxford).-Annual Autumn Meeting. Monday, September 15-Saturday, September 20 CEMENT AND CONCRETE ASSOCIATION in conjunction with the BUILDING RESEARCH STATION (at the ...
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  • 134
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    Nature 170 (1952), S. 381-382 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE scientific thought of the Western civilization is as much a part of our culture as the developments in the humanities which originated in the Greek and Jewish writings and were nurtured and grew in the centuries of the Christian era. But science, if only in some of its technological ...
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    Nature 170 (1952), S. 825-826 
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    Source: Nature Archives 1869 - 2009
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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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    Nature 170 (1952), S. 825-825 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] W. E. GYE, internationally known as an exponent of the virus hypothesis of cancer, died in Perth, Western Australia, on October 13. W. E. Bullock, who later changed his nar p to Gye, was born in the Derbyshire village of Beast on on August 11, 1884. The son of a railway signalman, he tried a ...
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    Nature 170 (1952), S. 826-826 
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    Notes: [Auszug] THE following awards of medals have been made by the President and the Council of the Royal Society: Copley Medal to Prof. P. A. M. Dirac, for his remarkable contributions to relativistic dynamics of a particle in quantum mechanics; Rumford Medal to Prof. F. Zernike for his outstanding work in the ...
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    Nature 170 (1952), S. 394-395 
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    Notes: [Auszug] FOR his presidential address to Section C (Geology), Dr. J. E. Richey takes as his subject "Some Aspects of Geological Research and their Practical Application". Quoting a remark made by Henri Poincar in "La Science et l'hypothse" that "Science is built of facts, as a house is built of stones; but ...
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    Nature 170 (1952), S. 396-397 
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    Notes: [Auszug] IN his presidential address to Section G (Engineering) Sir Ben Lockspeiser points out that there has been a very great advance in aviation since the previous meeting in Belfast of the British Association fifty years ago. That occasion preceded the Wright brothers' successful achievement of powered ...
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  • 140
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    Nature 170 (1952), S. 399-400 
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    Notes: [Auszug] THE subject of the presidential address to Section L (Education) raises so many issues that Mr. A. L. B inns has had to select for discussion in his address only a few of the many problems which the title indicates. Mr. Binns points out that the history of education in the seven British territories ...
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    Nature 170 (1952), S. 827-827 
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    Notes: [Auszug] IN a written reply in the House of Commons on October 28 to a question from Sir William Wakefield regarding economies in scientific and industrial research (Hansard, col. 1735-7; October 28), the Parliamentary Secretary to the Ministry of Works, representing the Lord President of the Council, ...
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    Nature 170 (1952), S. 393-394 
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    Notes: [Auszug] PROF. A. M. TYNDALL'S presidential address to Section A (Mathematics and Physics) deals in the main with some contributions by workers in Great Britain to experimental physics. His selection of topics has been made to illustrate the citation of the recent award of the Nobel Prize to Prof. C. F. ...
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    Nature 170 (1952), S. 395-396 
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    Notes: [Auszug] PROF. R. O. BUCHANAN's address to Section E (Geography) is a broad comparative survey of some historical conditions that controlled the process of the taking possession of land in areas of modern colonization. This process was spread over two centuries and a half, from the founding of the Dutch ...
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    Nature 170 (1952), S. 398-398 
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    Notes: [Auszug] IN his presidential address to Section I (Physiology), Prof. R. C. Garry points out that, in spite of continuing interest and of steady research, our present attitude towards the nervous control of the alimentary canal differs little from that expressed with general acceptance more than fifty years ...
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    Nature 170 (1952), S. 828-829 
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    Notes: [Auszug] THE City and Guilds of London Institute has recently established an "Insignia Award" in technology which is designed to be a mark of distinction conferred by the Institute on those who have combined with a sound practical training an adequate knowledge of the fundamental scientific principles of ...
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    Notes: [Auszug] THE officers of the Mineralogical Society for 1952-53 have been elected as follows: President, Dr. J. Phemister; Vice-Presidents, Dr. A. F. Hallimond and S. J. Shand; Treasurer, Prof. J. H. Taylor; General Secretary, Dr. G. F. Claringbull (c/o Geological Society, Burlington House, London, W.I); ...
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    Nature 170 (1952), S. 416-417 
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    Notes: [Auszug] However, critical observations on Balanus balanoides and Chthamalus stellatus during recent years have shown a marked change in their distribution, indicating a general recession of Balanus from its southern and western limits, and a corresponding increase in Chthamalus. Conclusive evidence for ...
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    Nature 170 (1952), S. 420-421 
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    Notes: [Auszug] While agreeing that the effect is most pronounced in vessels of low chain-destroying efficiency (clean 'Pyrex', boric oxide) we have also observed it with many other surfaces (potassium chloride, potassium hydroxide, etc.) at higher temperatures where the slow reaction is of the same order, but ...
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    Nature 170 (1952), S. 423-423 
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    Notes: [Auszug] It is tentatively suggested that this phenomenon may be due to the fact that barium sulphate has a hydrophilic surface (method of Davis and Curt is1), and that it will consequently tend to aggregate so as to present to the benzene the minimum surface per unit volume. In this respect the phenomenon ...
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    Nature 170 (1952), S. 426-426 
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    Notes: [Auszug] (Meeting marked with an asterisk * is open to the public) Monday, September 8-Tuesday, September 9 FARADAY SOCIETY (at the University of Toronto, Toronto, Canada).- General Discussion on "The Reactivity of Free Radicals". Wednesday, September 10 INSTITUTE OF PETROLEUM (at Mnson House, 26 ...
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    Nature 170 (1952), S. 426-426 
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    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned: CHIEF SUPERINTENDENT OF THE LONG RANGE WEAPONS ESTABLISHMENT, Salisbury, South Australia, to undertake the overall direction and control of the L.R.W.E. which includes certain laboratories at Salisbury and ...
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    Nature 170 (1952), S. 338-338 
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    Notes: [Auszug] THESE two books have much in common. Each has as author a prominent member of a pulp and paper research organization Brauns being of the Institute of Paper Chemistry, Wisconsin, and H gglund of the Swedish Forest Products Research Laboratory and both authors are prominent authorities on the ...
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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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    Nature 170 (1952), S. 836-837 
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    Notes: [Auszug] ALTHOUGH considerable efforts to explain JL~\ experimental phenomena on the basis of the classical theory of streaming potential have been made, it would appear that the model upon which the theory is based is defective. A more comprehensive theory might possibly be based upon a model described ...
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    Nature 170 (1952), S. 837-837 
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    Notes: [Auszug] As indicated above, the Rose and Moss model of ionic distribution for steady streaming potential conditions suggests a similar mechanism for electro-osmotic flow. The application of an electrical potential gradient along the length of the capillary will disturb the ionic distribution of the ...
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    Nature 170 (1952), S. 838-838 
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    Notes: [Auszug] Ramsey3 has re-examined this relation from the point of view of the theory of solids, and his conclusions agree with those of Bullen, namely, that the linear relation (1) is valid both in the core and in the mantle below 1,000 km. Ramsey, however, found that the constant k0 had different values in ...
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    Nature 170 (1952), S. 345-345 
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    Notes: [Auszug] A NUMBER of changes in the staff of the New York Zoological Park have been recently announced by the New York Zoological Society. The title of director of the Zoological Park, vacant for a number of years, has been revived by the appointment to that position of Mr. John Tee-Van, executive secretary ...
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    Nature 170 (1952), S. 346-346 
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    Notes: [Auszug] THE Pharmaceutical Society has awarded its research scholarship of £300 a year for two years to L. E. Coles, who will be engaged in the School of Pharmacy, University of London, in completing work on the synthetic analogues of the adrenal cortical hormones. Wellcome Pharmaceutical Research ...
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    Nature 170 (1952), S. 839-840 
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    Notes: [Auszug] Metson1 demonstrated the reversibility of oxygen poisoning, and suggested that a possible recovery mechanism was the outward diffusion of negative oxygen ions after a poisoning attack. An attempt was therefore made to detect directly any change in the emission of oxygen ions after poisoning by ...
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    Nature 170 (1952), S. 347-347 
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    Notes: [Auszug] THE annual report for 1950-51 of the Museum of Applied Science, Victoria (pp. 13; from the Museum, Melbourne, 1952), includes some interesting remarks concerning policy. When the Museum was established in 1870, its main functions were twofold, to give guidance to artisans and to accumulate a ...
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    Nature 170 (1952), S. 842-843 
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    Notes: [Auszug] The activity of carboxylase dissolved in 0-05M phosphate buffer pH, 6-0 at 30 , measured mano-metrically, diminishes by 50 per cent after 15 min. incubation with any of the following inhibitors: 5-0 mM methylarsenoxide; 0-8 mM mapharside (3-amino-4-hydroxyphenylarsenoxide hydrochloride); 1-4 (JtM ...
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    Notes: [Auszug] THE Socit Francaise de M tallurgie will hold its 'Journ es M tallurgiques d'Automne' during October 20-25 at the Maison de la Chimie, 28 bis rue St. Dominique, Paris 7e. The two main subjects to be discussed will be: faults and fractures observed i a. metals during service; and methods of ...
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    Nature 170 (1952), S. 372-373 
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    Notes: [Auszug] With the object of identiiying the ehromoo; ^, the autolysate obtained from 6 ib. of bakers yeast is filtered, diluted and subj.jted to displvmeiit chromatography on 'Zeo-Karb 215'. The progress of the operation was followed by means of the diacetyl reaction, and tin cdvbamido-rich portion of the ...
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    Nature 170 (1952), S. 376-377 
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    Notes: [Auszug] Suspensions of T. rhodesiense were prepared from infected mice and set up according to Yorke's basic technique. Marked variability in culture survival was traced to the serum content of the parasite inoculum. The importance of this factor is shown in experiments using washed parasites (Table 1). ...
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    Nature 170 (1952), S. 350-350 
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    Notes: [Auszug] THE application of isotopes in medicine is a JL subject which shows signs of dangerous over-popularization, with the consequent unjustified simplifications of the problem. A recent publication, entitled "Isotopes in Medicine"*, must therefore be very welcome since this series of articles, a ...
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    Nature 170 (1952), S. 359-360 
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    Notes: [Auszug] Direct observations by means of polarization4'5 and especially electron microscopy 6~10 were successful for investigations of the membrane f rom 'ghosts' (haemolysed cells) but failed to reveal the intact interior architecture. On one hand, no birefringence can be found there except in special ...
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    Nature 170 (1952), S. 305-305 
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    Notes: [Auszug] THE Faraday Society has elected Prof. John William McBain an honorary life member. Prof. McBain has held the chairs of physical chemistry in the Universities of Bristol in Great Britain and Stanford in the United States, and after his retirement from Stanford was for a time director of the National ...
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    Notes: [Auszug] DR. A. R. HOGG, chief assistant at the Commonwealth Observatory, Mount Stromlo, Canberra, writes that a spectacular meteor train was seen during the course of photometric observations at the Commonwealth Observatory. The train first appeared on May 4 at 19h. 15m. G.M.T. (05h. 15m. E.S.T.) against a ...
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    Nature 170 (1952), S. 848-849 
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    Notes: [Auszug] In considering the mechanism involved in the change in leaf form, it is of interest to refer to the work of McCallum1 on Proserpinaca palustris9 where an essentially similar response of leaf form to emergence from the water was studied. McCallum was able to induce the aerial type of leaf by growing ...
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    Nature 170 (1952), S. 307-307 
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    Notes: [Auszug] THE proceedings of the International Conference on Ultrasonics, held in Brussels during June 1951 (see Nature, 168, 106; 1951), have now been published in book form by the Koninklijke Vlaamse Academie voor Wetenschappen, Letteren en Schone Kunsten van Belgie (Brussels; 225 francs), under the ...
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    Nature 170 (1952), S. 298-298 
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    Notes: [Auszug] THE Journal of Scientific Instruments, the monthly publication of the Institute of Physics, deals with the principles, construction and use of scientific instruments and is produced by the Institute with the co-operation of the National Physical laboratory. When the Journal was started in 1923 it ...
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    Nature 170 (1952), S. 298-299 
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    Notes: [Auszug] ALL students of mammals welcome the appearance of this volume and are greatly indebted to the authors for their painstaking labour in providing a much-needed corner-stone in the structure of systematic mammalogy. The list, based on the unrivalled collections of the British Museum (Natural History), ...
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    Nature 170 (1952), S. 302-303 
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    Notes: [Auszug] THE subject of domestic heating is of particular interest at the present time in Great Britain when the quantity of coal for use in homes may well have to be reduced as a result of both the ever-increasing demand for coal to satisfy the expanding power requirements of industry and the urgent ...
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    Nature 170 (1952), S. 306-306 
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    Notes: [Auszug] AN important article in the April issue of the Museums Journal (reprinted from Museum, 5, No. 1, March 1952, by permission of Unesco) by M. J. Genard, of the University of Li ge, on ''Extreme Ultra-Violet Radiation from Tubular Fluorescent Lamps and its Effect on Museum Lighting", deals with a ...
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    Nature 170 (1952), S. 317-318 
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    Notes: [Auszug] The solutions obtained by the pyridine extraction of coal are commonly believed to be, like the ethylenediamine extracts, essentially colloidal dispersions. Nevertheless, the average molecular weights of the substances present in such solutions are only of the order of 500-1,400, and are ...
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    Nature 170 (1952), S. 23-24 
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    Notes: [Auszug] THE executive committee of the International Union of Biological Sciences met in London in the rooms of the Royal Society during March 4-5. This meeting was midway between the last General Assembly of the Union at Stockholm in 1950 and the next one to be held in the summer of 1953. Thirty members ...
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    Nature 170 (1952), S. 31-31 
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    Notes: [Auszug] It is possible to show1 that this effect is due to the friction arising when the point of contact slides over the supporting plane. The torque resulting from this force causes the angular momentum vector to move over the surface of a cone with vertical axis. Thus the angular momentum will have a ...
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    Nature 170 (1952), S. 35-35 
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    Notes: [Auszug] The metal content of yeast is assumed constant, and the whole of the radioactive isotope is introduced at the beginning of the experiment. Then the rate of disappearance of radioactive metal ions is described by the differential equation : V/L dx/dt= - v ^x^v (**_r^)_ZIL where a is gm. ...
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    Nature 170 (1952), S. 33-34 
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    Notes: [Auszug] Since porphyrin pigments are ampholytes, with differing numbers of carboxylic groups, it seemed likely that ionophoresis in a gel would provide a simple means of separation. Nicholas and Rimington3 observed that the RF values of porphyrins in paper partition chromatography were inversely ...
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    Notes: [Auszug] According to de Groot, the shape of the thermal separation versus time curve is determined by the value of the diffusion constant at the mean temperature. The extent of thermal separation is not predictable, but the theory may be checked by evaluating the diffusion constant from time curves and ...
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    Nature 170 (1952), S. 38-39 
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    Notes: [Auszug] The reasons for the sterility induced by chemical treatment have not yet been thoroughly investigated. Recently, Moore1 and Naylor2 reported that maleic hydrazide, a plant-growth inhibitor, produces only male sterility in maize, whereas the female flowers remain fertile and set seed after ...
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    Notes: [Auszug] The compound chosen for study was 2-naphthylglyoxal, because the properties of the resulting beta-2-naphthoylacrylic acid would help clear up certain doubts about its structure at the time this work was begun (however, see ref. 1). 2-Naphthylglyoxal was obtained easily in 75 per cent yield by ...
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    Nature 170 (1952), S. 177-177 
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    Notes: [Auszug] THE physiological effects of a shortage of food occupied the attention of many people during the Second World War, and plans were laid by various committees in Great Britain to study them immediately hostilities ceased. In the United States in 1944 Prof. Ancel Keys and his four colleagues decided ...
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    Nature 170 (1952), S. 178-178 
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    Notes: [Auszug] PROLONGED or excessive dosage with oestrogen may lead, in either sex, to hyperplasia or metaplasia of certain tissues. This effect, like other effects of?strogens, can usually be prevented by the simultaneous administration of progesterone or androgens. Allowing for the large number of gonadally ...
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    Nature 170 (1952), S. 178-178 
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    Notes: [Auszug] MR. H. L. HEYS'S gift of clear exposition and his avoidance of advanced mathematics have long made this book popular with teachers and particularly suited to the average pupil taking the former Higher School Certificate or equivalent examinations. To the difficult task of bringing the text into ...
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    Nature 169 (1952), S. 1073-1073 
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    Notes: [Auszug] MRS. VENABLES went to the Shetland Islands as the wife of the ornithologist L. S. V. Venables, and the trend of the book is ornithological. Her style is pleasantly buoyant, and the information somewhat heterogeneously presented. They took a croft on the mainland of Shetland, not as crofters but as ...
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    Nature 170 (1952), S. 43-43 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Seventy-two male white rats weighing 144 ± 3 gm. were fed on a synthetic diet containing 30 per cent proteins, 56 per cent carbohydrates, 10 per cent lipids, 4 per cent McCollum salt mixture and supplements of vitamins and lipotropic factors; water was allowed ad libitum. Forty-six rats were ...
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    Nature 170 (1952), S. 44-44 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (not included in the monthly Books Supplement) Great Britain and Ireland Royal Commission on University Education in Dundee, 1951-52 : Report. (Cmd. 8514.) Pp. 75. (London: H.M. Stationery Office, 1952.) 2s. 6d. net. [55 British Electrical and Allied Manufacturers' Association. Forty-first ...
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    Nature 169 (1952), S. 1071-1071 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is now fifty-five years since Lord Rayleigh showed theoretically that it should be possible to propagate two classes of electromagnetic wave inside perfectly conducting tubes of circular or rectangular cross-section; and he directed attention to the important feature that for each class there is ...
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    Nature 169 (1952), S. 1073-1073 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is a real pleasure to welcome another edition of this well-known and excellent text-book of practical physics ; for, since the work was first published in 1923, it has been a source of help and inspiration to both students and teachers. Although the authors state that the course is for students ...
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    Nature 169 (1952), S. 1073-1073 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE character of this book is evident from the fact that 'theory' occupies 22 pages out of 229, and that is all that the reader will find. The 'theory' is made as painless as possible by the relegation of thermodynamics to an appendix. Practice, on the other hand, is very adequately treated from ...
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    Nature 169 (1952), S. 1081-1081 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR. ABTHUB LASNITZKI, who died suddenly at Birmingham on April 18 at the age of fifty-six, was born in Lauenburg, Germany. After completing his early education he studied medicine with special training in chemistry, physics and mathematics at the Universities of Berlin and Bonn. His predominant ...
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    Nature 169 (1952), S. 1081-1081 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR ALGERNON ASPINALL, secretary of the West India Committee for forty years, until his retirement in 1938, and of the Imperial College of Tropical Agriculture, British West Indies, from its foundation until 1940, recently died at the age of eighty. Himself not a man of science-he was called to the ...
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    Nature 169 (1952), S. 1083-1083 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a recent meeting at the House of Lords, called by Mr. J. Avery Joyce and presided over by Lord Merthyr, the British Section of the World Calendar Association, Inc., of New York, was formed, there being no similar body existing in Great Britain since the War. The aim of the Association is to ...
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    Nature 169 (1952), S. 1084-1084 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE nineteenth session of the International Geological Congress will be held in Algiers during September 8-15. Among the subjects for discussion are the subdivision and correlation of the Pre-Cambrian rocks; the Palaeozoic strata of North Africa ; the mechanics of rock-deformation ; submarine ...
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    Nature 169 (1952), S. 1091-1093 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE second of a series of meetings organized by the Staff Association of the Royal Technical College, Glasgow, to discuss the future of higher technological education was held in the College on May 27 and addressed by Prof. J. F. Baker, head of the Department of Engineering, University of ...
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    Nature 169 (1952), S. 1095-1095 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tuberculous lymph-nodes were reduced to pulp, and diluted in a proportion of 10 ml. of Sauton's medium to every 100 gm. of pulp. After seven to eight days at a temperature of + 4 C, the suspension was squeezed through gauze. The resultant fluid, which was viscous and opaque, was centrifuged ...
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    Nature 169 (1952), S. 1098-1098 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Of the populations sampled, one was from a disused lead mine known to be at least a thousand years old at Goginan, five miles from Aberystwyth, and another from an ordinary Agrostis-Festuca pasture a short distance away. The soil of the mine contains approximately 1 per cent lead and 0-03 per cent ...
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    Nature 169 (1952), S. 1093-1094 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a ceremony on May 15, at which the Warden of the Durham Colleges, Sir James Duff, presided, Prof. G. R. Goldsbrough, emeritus professor of mathematics in King's College, Newcastle upon Tyne (University of Durham), formally opened the West Building and the adjoining Applebey Lecture Theatre of ...
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    Nature 169 (1952), S. 1095-1096 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The water-soluble poly-amino-acids investigated may be classified, according to their electrochemical properties, into neutral, acidic and basic poly-amino-acids. In the present study, poly-DL-alanine was chosen as representative of the neutral poly-amino-acids (it is the only known water-soluble ...
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