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  • Nature Publishing Group  (3,133)
  • Springer  (2,983)
  • Elsevier  (891)
  • Cambridge University Press  (259)
  • 1950-1954
  • 1945-1949  (7,266)
  • 1948  (7,266)
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  • 1950-1954
  • 1945-1949  (7,266)
Year
  • 101
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    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 563-563 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] REFERENCE has already been made in these columns (Nature, March 31, 1945, p. 385) to the proof by Prof. G. Fano, formerly of Turin, of a long-conjectured and important result in algebraic geometry. It has been known for nearly a century that the plane curve with equation /3 (x, y) = 0, where /3 ...
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  • 102
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    Nature 162 (1948), S. 556-557 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE president of the British Association for the Advancement of Science, Sir Henry Tizard, referred in his inaugural address at the Brighton meeting to "our bounden duty, and the only certain way of safeguarding our future so long as we remain a large food-imparting country, to develop our Colonial ...
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  • 103
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    Nature 162 (1948), S. 561-561 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MAJOR SIS THOMAS HENRY CBOZIER, formerly His Majesty's Chief Inspector of Explosives at the Home Office, died at Folkestone on -September 26 at the age of eighty. Born at Monkstown, County Dublin, on February 26, 1868, he was educated at the United Services College, Westward Ho, and the Royal ...
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  • 104
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    Nature 162 (1948), S. 572-573 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST of the single-cell strains of English brewery top fermentation yeasts so far examined grow well at 25° C. in forty-eight hours in a synthetic glucose-mineral salts medium, containing (NH4)2HPO4 as the sole source of nitrogen and biotin, pantothenic acid and ...
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  • 105
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    Nature 162 (1948), S. 571-571 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Jiménez Díaz, Grande Covián and De Oya1 have reported that in dogs in which the vessels of both kidneys were clamped, the intravenous injection of alloxan in doses of 80–100 mgm./kgm. failed to produce either the hyperglycæmia or uræmia observed in controls in which the clamping ...
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  • 106
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    Nature 162 (1948), S. 577-578 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BY using suitable solvents as diluents in the reaction mixture to modify the phosphoric test for natural œstrogens1, new and apparently specific colour or fluorescence tests have been found for trans trans Δ 5:6-androstenediol-3:17, dienœstrol, 17-ethinyl ...
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  • 107
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    Nature 162 (1948), S. 579-580 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOR some time past we have been engaged on the 17 isolation and characterization of the specific blood group substances which belong to the ABO1 system. The identification of the component molecules of these complex mucoids has been delayed until satisfactory evidence for the homogeneity of the ...
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  • 108
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    Nature 162 (1948), S. 586-587 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE report of the Ministry of Health for the year ended March 31, 1947 (Cmd. 7441, pp. 1-204. London: H.M. Stationery Office, 1948. 3s. 6d. net), records, in general, another favourable bill of health. In spite of the continuance of rationing and other controls, and of the various additional ...
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  • 109
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    Nature 162 (1948), S. 1000-1000 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] NOTHING was known of tunicate receptors before 1899, when Herdman1, in his description of Ascidia, mentioned a few structures that might act as receptors, but gave no proof or details. Lorleberg2, on the other hand, stated in 1907 that in Stylopsis “there is ...
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  • 110
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    Nature 162 (1948), S. 1000-1001 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EXPERIMENTS were carried out with Periplaneta americana and Rana esculenta, after injection with a D.D.T.-emulsion. Action-potentials from the n. cruralis (= 5th nerve, Pringle) of the second thoracic ganglion of Periplaneta were recorded with a special pre-amplifier and a cathode-ray ...
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  • 111
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    Nature 162 (1948), S. 1001-1001 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Acanthocephalus ranæ Schrank. (= Echinorhynchus ranæ Schrank. = Echinorhynchus hæruca Rudolphi.), the only known Acanthocephalan parasite of the frog, has rarely been found in Great Britain. The only known recorded occurrences are by Elmhirst1, who found it in the common frog ...
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  • 112
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    Nature 162 (1948), S. 1001-1001 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I WISH to record the finding of Colpomenia sinuosa (Mert.) Derb. et Sol., near Stornoway in the Isle of Lewis. The plants were found growing in shallow pools on Corallina officinalis L. at Aignish, on the Broad Bay side of the Eye Peninsula in July 1947. The first record of this alga in ...
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  • 113
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    Nature 162 (1948), S. 1002-1002 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SEVERAL colloidal serum reactions have been proposed during recent years for revealing damage of the liver parenchyme: the cephalin-test (Hanger), the colloidal gold and thymol tests (Maclagan) and the colloidal benzoin and shellac tests1. Most authors suppose that increased ...
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  • 114
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    Nature 162 (1948), S. 1002-1003 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT was shown earlier that glucose uptake in the isolated rat diaphragm was reduced after a period of non-carbohydrate, high-fat diet1, and that a spontaneous regulation of food intake took place in animals shifted from such a diet to a high-carbohydrate diet2. ...
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  • 115
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    Nature 162 (1948), S. 1003-1003 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN 1926, Knaffl-Lenz1 introduced a method for the bioassay of digitalis preparations by determining the minimal lethal dose on intravenous injection in anæsthetized guinea pigs. The method, which may be used for all kinds of cardiac glucosides, has since become official in, for ...
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  • 116
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    Nature 162 (1948), S. 1004-1004 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent publication1, some investigations on the esterification-rate of dibasic acid anhydrides with primary alcohols at room temperature were recorded. From the results of titration of acid anhydrides dissolved in the cold in primary alcohols, using a solution of potassium ...
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  • 117
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    Nature 162 (1948), S. 1004-1004 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE reactions following light absorption by pure organic disulphides in solution have not been studied, although the reactions are of great importance in the chemistry of wool, affecting both felting and shrinkage of the wool1,2. Similar reactions occur in irradiated ...
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  • 118
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    Nature 162 (1948), S. 1004-1004 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN his comprehensive and excellent review of Sir Joseph Barcroft's “Researches on Pre-Natal Life” which appeared in Nature, 159, p. 383, Dr. F. H. A. Marshall makes the following statement: “With regard to the matter of permeability the author finds that, contrary to the views of ...
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  • 119
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    Nature 162 (1948), S. 1005-1006 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE conference of the Atomic Scientists' Association on "Atomic Energy and Society" and "Atomic Energy and the Scientist" was held in the Beaver Hall, London, on October 30. A number of distinguished men of science addressed the conference, and their speeches were followed by a general discussion. ...
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  • 120
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    Nature 162 (1948), S. 1006-1007 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the teaching of biology there are two sharply defined aspects: there is the study of the structure of organisms correlated with their functioning, leading to knowledge of human physiology and the relation of man to the animal and plant kingdom. This may be looked on as a factual aspect while, on ...
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  • 121
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    Nature 162 (1948), S. 1007-1007 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] ORIGINALLY used for coloured substances chromatography has been extended to deal with a wide range of colourless materials, by the use of suitable coloured derivatives or of indicators. Sugars and related substances form an important class of this kind, for which chromatography has proved to be a ...
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  • 122
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    Nature 162 (1948), S. 1007-1008 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE honours degree courses in science in University College, Dublin, have recently been extended by one year so as to require four years of post-matriculation work. After three years, the student sits for a general degree examination in three subjects, and if he passes and attains an honours level ...
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  • 123
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    Nature 162 (1948), S. 1009-1010 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE National Foundation for Adult Education has now been constituted since January 1947 and, besides its quarterly bulletin, Foundation Papers, has published various supplements dealing with subjects of immediate importance to its corporate members. One supplement, "Voluntary Agencies in Adult ...
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  • 124
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    Nature 162 (1948), S. 1008-1009 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE post-glacial history of the Somerset Levels has been the subject of considerable published work by Prof. H. Godwin and his collaborators in the pollen-analysis of peat; but a new series of "Studies of the Post-Glacial History of British Vegetation" reveals such a dramatic story as to appeal to ...
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  • 125
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    Nature 162 (1948), S. 1010-1010 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Tuesday, December 28 ROYAL INSTITUTION (at 21 Albemarle Street, London, W.I), at 3 p.m.-Sir Frederic Bartlett, F.H.S.: "The Mind at Work and at Play-Experiments in Psychology". (Further Lectures on December 30, January 1, 4, 6 and 8.) Wednesday, December 29 ROYAL GEOGRAPHICAL SOCIETY (at ...
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  • 126
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    Nature 162 (1948), S. 1009-1009 
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    Notes: [Auszug] THE reconstituted Committee on Plastics appointed by the Scottish Council (Development and Industry) was appointed to inquire further into the extent to which the industry is being developed in Scotland to meet requirements, to suggest what further action is required to meet the situation, and to ...
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  • 127
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    Nature 162 (1948), S. 979-980 
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    Notes: [Auszug] DR. JULIAN HUXLEY has already directed attention to this book in a short comment published in Nature of October 9, p. 562. It is, as he pointed out, a worthy companion of the series of monographs by Dobzhansky, Simpson, Mayr and Huxley himself, which have in the last few years elevated evolutionary ...
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  • 128
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    Nature 162 (1948), S. 1010-1010 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned: SENIOR RESEARCH OFFICER, and RESEARCH OFFICERS (3), in the Pasture Research Division of the Department of Agriculture and Lands, Southern Rhodesia-The Secretary to the High Commissioner for Southern Rhodesia, ...
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  • 129
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    Nature 162 (1948), S. 977-979 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] IN its report on "University Finance in Great Britain", dated July 1943, the British Association Committee on Post-War University Education recorded the view that the question of university salaries was the essence of the situation and should be given priority over almost everything else. The ...
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  • 130
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    Nature 162 (1948), S. 1010-1010 
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    Notes: [Auszug] Great Britain and Ireland Question: a Journal. Edited by H. Westmann. Vol. 1, No. 1, July 1948: The Critical Problem in Human Relationships Today. By G. Wilson Knight, Herbert Bead and Dr. J. H. Oldham. Pp. 87. (Published for the Present Question Conference, Ltd.) (London: Hammond, Hammond and ...
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  • 131
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    Nature 162 (1948), S. 981-981 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE discontinuous sialic continents floating in the continuous simatic layer and the folded belts of the crust present two of the grandest,problems of geology. In this essay, the solutions advanced are these. First, in the early liquid stage of the earth, crystallization began with the sinking of ...
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    Nature 162 (1948), S. 981-981 
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    Notes: [Auszug] WHEN Mr. Raymond Bush sits down to write a book or an article, one may be sure that the result will be well worth the gardener's reading. There is always much wisdom, not untinged by humour, much of a life-time's accumulated experience and, usually, something at least to make one doubt or even ...
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    Nature 162 (1948), S. 980-981 
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    Notes: [Auszug] THESE four text-books for elementary students illustrate the trends in the teaching of zoology in the United States. As three of them are second editions they have obviously proved successful in their own spheres. The "Comparative Anatomy" by Atwood, although in its first edition, is based on the ...
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    Nature 162 (1948), S. 982-983 
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    Notes: [Auszug] CRYSTAL rectifiers, the essential constituents of V_〉l which are a metal and semiconductor in contact, are of two types, large-area contact rectifiers, such as copper oxide or selenium rectifiers, and point-contact ones, such as the germanium or silicon type. In both types the semi-conductor, ...
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    Nature 162 (1948), S. 983-985 
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    Notes: [Auszug] MATERIAL produced by recent ethnological research calls for a revision of the hitherto generally accepted 'classical' conception of the origin and early evolution of money. That conception may be briefly summarized as follows: Barter developed as and when original communism (tribal ownership of the ...
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    Nature 162 (1948), S. 985-986 
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    Notes: [Auszug] AN interesting discussion on "Anti-vitamins in Food", arranged by the Nutrition Society, took place on October 23 at the Royal Society of Arts. Sir Edward Mellanby, who might justly claim to be the originator of the modern concept of anti-vitamins, was chairman. In his introductory remarks he ...
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    Nature 162 (1948), S. 986-987 
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    Notes: [Auszug] AGRICuLTURAL science has suffered a severe loss by the death on November 22 of Sir John Fryer, secretary of the Agricultural Research Council, at the age of sixty-two. The news came as a great shock to his many friends both in scientific and administrative circles. John Claud Fortescue Fryer was ...
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    Nature 162 (1948), S. 987-987 
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    Notes: [Auszug] ON his retirement last July, Mr. T. Smith completed a period of forty-one years service at the National Physical Laboratory, where he was in charge first of the Optics Section of the Physics Department and later of the newly created Light Division. The long series of investigations on geometrical ...
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    Nature 162 (1948), S. 987-987 
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    Notes: [Auszug] DE. L. A. SAYCE, who has succeeded Mr. T. Smith as superintendent of the Light Division at the National Physical Laboratory, is fifty years of age. After serving in the Honourable Artillery Company in the First World War, he went to the University of Durham to study chemistry, taking honours in ...
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    Nature 162 (1948), S. 987-988 
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    Notes: [Auszug] MB. G. S. CASTSDALE has been appointed superintendent of the Zoological Society's Gardens in Regent's Park, London, in succession to Dr. G. M. Vevers, who retired on December 15 (see Nature, November 6, p. 727). Mr. Cansdale was educated at St. Edmund's Hall, Oxford; he graduated in forestry and ...
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    Nature 162 (1948), S. 988-988 
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    Notes: [Auszug] THE avowed purpose of the American Institute of Physics is "the advancement and diffusion of physics and its applications to human welfare". For the research worker, the teacher, the theoretical or experimental physicist, and the investigator engaged in pure or applied science, the Institute or its ...
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    Nature 162 (1948), S. 988-988 
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    Notes: [Auszug] As already announced (see Nature, June 26, p. 1,005), the Fourth World Power Conference will be held in the building of the Institution of Civil Engineers, London, during July 10-15, 1950, and the theme of the Conference will be "World Energy Resources and the Production of Power". Sir Harold ...
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    Notes: [Auszug] THE publication of the Year-Boole of the State of the Ice in the Arctic Sea issued by the Danske Meteor-ologiske Institut, which was suspended in 1940, has been resumed on the traditional lines with charts for the spring and summer months. The Institute is trying to collect material for the years ...
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    Notes: [Auszug] LYING directly between Orkney and Shetland, Fair Isle has been well known as a bird migration station since Dr. Eagle Clark began his observations there in 1905. Since the Second World War, and largely through the efforts of George Waterston, Ian Pitman and Arthur Duncan, the Fair Isle Bird ...
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    Notes: [Auszug] THE ordinary person probably regards the kangaroo as the most characteristic of the native animals of Australia, and the Macropodidse is the family with the largest number of species and contains the largest animals. Considerable work has been done on this group; but nevertheless the review of the ...
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    Notes: [Auszug] AT a meeting of the radio section of the Institution of Electrical Engineers on November 2, Mr. G. W. A. Dummer presented a paper entitled "Aids to Training -The Design of Radar Synthetic Training Devices for the R.A.F.". In this paper, the author describes how, during the War, work was conducted ...
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    Notes: [Auszug] MB. O. R. WALKEY has investigated the distance of Canopus (a Carinee) by a new line of approach (J. Brit. Ast. Assoc., 58, No. 6; 1948). The results obtained for this star vary considerably, some of the derived parallaxes being more than five times those of others. Mr. Walkey approaches the problem ...
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    Notes: [Auszug] THE programme of symposia, organised with the help of Unesco by the International Union of Biological Sciences, started in November 1947 with a symposium on trace elements in plant physiology, held at Rothamsted (see Nature, 161, 364; 1948). The report of this Conference is in the press at Chronica ...
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    Notes: [Auszug] THE report of the Council of the City and Guilds of London Institute for 1947 gives ample evidence of the Institute's growing activities. There has been a large increase in the number of students at the City and Guilds College, particularly postgraduate and research students. In the Department of ...
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    Notes: [Auszug] AN exhibition of industrial radiographs will be held at the spring meeting of the Industrial Radiology Group at the Institute of Physics on February 18 and 19, 1949, Entries should be suitable for showing on standard viewing lanterns (mounted prints may also be submitted) and should, wherever ...
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    Notes: [Auszug] THE third of the series of natural history booklets has now been published by the Glasgow Art Galleries and Museum. Like the first two of the series, "Animals of Africa" and "Animals of India", the new booklet has been written primarily as an account of the Australian habitat group, one of the ...
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    Notes: [Auszug] THE president of the Royal Society has appointed the following vice-presidents for the ensuing year: Sir Thomas Merton, treasurer of the Royal Society; Sir Edward Salisbury, biological secretary of the Royal Society, director of the Royal Botanic Gardens, Kew; Sir James Chadwick, master of Gonville ...
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    Nature 162 (1948), S. 991-992 
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    Notes: [Auszug] IT is known that X-ray line broadening in cold-worked metals appears to tend towards a limiting value as the amount of deformation increases. A possible cause of this might be self-annealing. If, as is very probable, line broadening is due mainly to internal strains, self-annealing Would lead ...
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    Notes: [Auszug] SINCE the announcement of a photographic emulsion of sufficient sensitivity to record unmistakably the tracks of electrons1, interest has centred on the possibility of achieving further increases in sensitivity, the recording of the complete tracks of any charged particle being ...
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    Notes: [Auszug] IN a recent communication, Pinkerton1 has shown that for frequencies less than 70 Mc./sec. the absorption of ultrasonic waves in acetic acid can be attributed to a relaxation mechanism arising from the perturbation of a molecular equilibrium by the ultrasonic vibrations. His ...
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    Notes: [Auszug] IN the search for relationships between electrical properties and the chemical and physical structures of solid dielectrics, the experimental investigations by Jackson1, Sillars2 and Pelmore3 are of considerable interest. These workers incorporated ...
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    Notes: [Auszug] GILBERT1 has recently directed attention to the desirability in corrosion studies of being able to compare directly potentials measured at different temperatures. The standard electrode potential of the silver/silver chloride electrode has been measured over a temperature ...
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    Nature 162 (1948), S. 996-996 
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    Notes: [Auszug] IN 1935 Barnes, Brattain and Seitz1, investigating the absorption of magnesium oxide in the infra-red, reported some forty or so fine absorption lines in the range from 6 µ to 15·6 µ. In 1934 Fock2, using fumed magnesium oxide, had reported the eigen-frequency to ...
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    Notes: [Auszug] As part of an attempt to systematize the knowledge of factors which influence the form of binary equilibrium diagrams, we have examined the available data on binary systems in Which no intermediate compounds are formed. This corresponds to a state of affairs where the electrochemical ...
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    Notes: [Auszug] WHEN considering the conditions necessary for the stability of laminar flow in a cylindrical pipe, it may be assumed that the following quantities are involved: transverse velocity gradient (dv/dx) at the point considered; distance (x) of the point from the wall; and kinematic viscosity (v) of ...
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    Notes: [Auszug] DR. C. F. HICKLING1 recently gave a survey of fish farming in the Middle and Far East. He mentioned that the best results were obtained in Africa with species of Tilapia (Percomorphi, Cichlidæ). The study of fish-farming problems being one of the principal objects of the ...
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    Notes: [Auszug] ALTHOUGH it is well known that the non-protein nitrogen content of insect hæmolymph is high and that a large proportion of it is present as amino-acids, few investigations have been made as to their nature. Florkin and Duchateau1 showed that the hæmolymph of Dytiscus marginalis ...
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    Nature 162 (1948), S. 941-943 
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    Notes: [Auszug] TWO recent broadsheets by P.E.P. ("Councils and their Schools") have directed attention to the local administration of education and its implications for democracy. The first, which is mainly concerned with the administrative structure of education in Britain, is introduced by the two pertinent ...
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    Notes: [Auszug] Aedes ægypti and Culex pipiens are the only two mosquitoes which have hitherto been reared from egg to adult under sterile conditions. It is interesting to note that the autogenous Culex molestus can also be bred without difficulty on sterile media. The following media were found suitable for ...
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    Nature 162 (1948), S. 943-944 
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    Notes: [Auszug] TWELVE years ago Avery and Burkholder, with other collaborators, translated "Die Wuchstoff-theorie" (Boysen-Jensen) and published a very useful introductory account of "Growth Hormones in Plants" which reviewed the literature concerned with the discovery and isolation of highly active substances ...
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    Notes: [Auszug] FROM age to age, men have contemplated the problem of good; not infrequently, however, they have found themselves discussing what things are good, an entirely different question. Dr. A. C. Ewing is quite clear; his concern is with the former. This being so, he sets out to offer stout resistance to ...
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    Notes: [Auszug] THIS book is intended as an introduction to operational calculus based upon the transform of f(x) defined by -P\ that is to say, the Laplace transform multiplied by p. The function tp(p) so defined is identical with what Heaviside called the operational form. The advantage of the present treatment ...
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    Notes: [Auszug] THE object of this book, according to the preface, is to describe at an intermediate level the principles of operation of thermionic valves and their associated circuits. It is intended for students at technical institutes or for radio technicians wishing to improve their basic knowledge of the ...
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    Notes: [Auszug] THE numerous admirers of Prof. Alexander Findlay's writings will welcome this new and revised edition of a remarkably interesting and useful book. His masterly review of a century of effort and achievement in the constantly widening domain of chemistry constitutes a great tribute to the author's ...
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    Notes: [Auszug] THIS account of the geological history of North America is intended for students and readers interested in the cultural aspect of the science. The author, like all geologists, believes that a knowledge of the major events in the history of the earth should be part of a liberal education. Since a ...
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    Notes: [Auszug] MOST of this small book consists of mineral identification tables which are preceded by introductory chapters on equipment and chemicals needed and methods of identification. The determ inative tables list some six hundred minerals, classified primarily according to colour, streak, cleavage and ...
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    Notes: [Auszug] A SURPRISINGLY large number of species of insects and related small animals occur in glasshouses and cause injury to the plants that are grown therein. A perusal of the present handbook will convince the reader on this point: at the same time it will enable him (or her) to recognize any of these ...
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    Notes: [Auszug] THE theory advanced by A. A. Griffith1 in 1920 has served as a background to subsequent theories of rupture in brittle materials. The solid is regarded as an elastic continuum containing microscopic flaws, and the failure of the material under a stress less than that corresponding to the ...
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    Notes: [Auszug] THE fact that there is in every ocean a zone of minimum oxygen is of interest not only to the physicist and chemist but also to the biologist, and it is very desirable that we should know what influence this layer has on both the quantitative and qualitative distribution of the fauna, or, ...
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    Notes: [Auszug] IN scientific research, and in the application to industry of the results of research, the problems encountered are of increasing complexity. Scientific workers engaged in this Work feel the necessity for consultation or collaboration with specialists in fields other than their own. Indeed, it has ...
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    Notes: [Auszug] SAMUEL EDWARD SHEPPARD died in Rochester, N.Y., on September 29, aged sixty-six. Dr. Sheppard was born in Catford, and was educated at St. Dun-stan's College, Catford, and University College, London. There he obtained the degree of B.Sc. by research in 1903, his thesis dealing with the theory of ...
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    Notes: [Auszug] WE regret to announce that Dr. Kornel de Korosy, professor of biology in the University of Budapest, died on July 14. Son of the famous Hungarian statistician, Joseph de Korosy, he was born at Budapest in 1879. As a student of medicine, he entered the Institute of Physiology in the University of ...
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    Notes: [Auszug] WE regret to announce the following deaths: Sir Wilfrid Grigson, C.S.I., sometime directorgeneral of revenue in Hyderabad, author of "The Aboriginal Problem in the Central Provinces and Berar" and other anthropological studies, on November 26, aged fifty-two. Dr. Louis Rapkine, director of the ...
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    Notes: [Auszug] We are glad to learn from Prof. J. Heyrovsky, of the Charles University, Prague, that Dr. F. BShounek, whose death was announced in Nature of December 4, is alive and ...
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    Notes: [Auszug] THE National Academy of Sciences presented the Alexander Agassiz Gold Medal and honorarium for 1948 to Dr. Thomas Gordon Thompson at the autumn meeting of the Academy held at the University of California, Berkeley, on November 15. Dr. Thompson, professor of chemistry and director of the ...
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    Notes: [Auszug] A TERCENTENARY Memorial Lecture entitled "William Davidson of Aberdeen: The First Scots Professor of Chemistry" was delivered in Marischal College, Aberdeen, on November 26, 1948, by Dr. John Read, professor of chemistry in the University of St. Andrews. Davidson was a native of Aberdeenshire who ...
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    Notes: [Auszug] THE Supreme Commander, Allied Powers ('SCAP') has announced that a United States scientific mission to Japan "is scheduled to arrive in that country on or about November 26 and may be expected to remain until about December 18, 1948". The mission is composed of five distinguished American men of ...
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    Notes: [Auszug] THE fourteenth annual report for the year ending October 1948 by the Vacation Work Scheme of the Imperial College of Science and Technology has recently been published. The Scheme aims at providing work in Great Britain and abroad for students during their vacation, and it is almost entirely ...
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    Notes: [Auszug] FOR these days, Management Abstracts, the first issue of a series of specialized publications dealing with the different aspects of management to be published by the British Institute of Management (London), seems rather a lavish production. It covers some two hundred British and Overseas ...
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    Notes: [Auszug] WALLACE PRODUCTIONS, LTD., have just finished making a documentary film for the United Dairies, Ltd. This film, which lasts for about half an hour, is called "The Milky Way" and was shown to a small invited audience on November 30 at the British Council Theatre in London. It tells the story of the ...
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    Notes: [Auszug] ARISING out of the Scientific Information Conference held last June, the Council of the Royal Society has set up a Standing Committee on Information Services. The terms of reference are: (1) to advise on means of improving existing methods of publishing, abstracting, indexing and distributing ...
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    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 956-956 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE following appointments in the Colonial. Service have been announced: J. S. Campbell, agricultural officer, Nigeria; W. Galley, agricultural officer, Uganda; W. Smith, agricultural officer, Gold Coast; E. A. Edmonds, geologist, Gold Coast; N. J. Guest, geologist, Tanganyika; K. Taylor, ...
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    Nature 162 (1948), S. 956-956 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Nutrition Panel of the Food Group of the Society of Chemical Industry is arranging a series of meetings for discussing the problems affecting manufactured foods in Great Britain. Sausages, soups, ice-creams, cake mixtures, jam, processed cheeses, and the like, form an important part of ...
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    Nature 162 (1948), S. 956-956 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PROF. C. M. YONGE has been re-appointed a director of the Scottish Marine Biological Association. Dr. Angus Macphail has been appointed lecturer in public health, and Dr. W. G. A. Begg an assistant in anatomy. Mr. John Green has resigned from the Departments of Biochemistry and Medicine to become ...
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    Nature 162 (1948), S. 956-956 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Medal of the Royal Society of New South Wales has been awarded to Prof. W. L. Waterhouse, research professor of plant pathology and agricultural botany in the University of Sydney. The award is made for meritorious contributions to the advancement of science: this may include administration and ...
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    Nature 162 (1948), S. 957-957 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A USEFUL technique has been developed for obtaining moderately large samples of wool roots for histochemical examination. It is hoped that this technique will assist in elucidating the mode of formation of the wool fibre and also facilitate investigations already in progress in this laboratory, ...
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    Nature 162 (1948), S. 957-959 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE increasing preoccupation of plant physiological laboratories throughout the world with problems of growth makes it very desirable that the details of structure in the cell wall, in growing tissue, should be known as completely as possible in the condition occurring in the living tissue ...
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    Nature 162 (1948), S. 959-960 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PYRIDINE has long been known as a good solvent for coal1. It is effective even at room temperature, and causes marked swelling of the coal substance. Solutions are usually prepared at the boiling point and are recognized to be at least predominantly colloidal. It has recently ...
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    Nature 162 (1948), S. 960-960 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE properties of ethylene diamine have been summarized by Wilson1 and by Putnam and Kobe2. In the course of recent work with this substance, additional and in part contradictory information has been obtained. Samples of commercial anhydrous ethylene diamine ...
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    Nature 162 (1948), S. 960-961 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the course of some exploratory experiments carried out eighteen months ago when I was a member of the staff of the British Coal Utilisation Research Association, it was observed that appreciable quantities of some bituminous coals were soluble (or dispersible) in alcoholic potash. A ...
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    Nature 162 (1948), S. 961-961 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN electrophysiology the term ‘polarization’ often has an ambiguous meaning. Here it will be used in the physical sense as an overall definition to include changes in the ‘resting potential’ of the object (membrane, nerve, skin, etc.), as well as the appearance of rectification, capacity and ...
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    Nature 162 (1948), S. 962-962 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] No a priori answer can be given to the question whether the development of rigor in muscle poisoned by iodoacetate is accompanied by electrical depolarization, though it may be expected that the muscle after developing rigor will eventually become depolarized. The present work was an attempt to ...
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    Nature 162 (1948), S. 963-963 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DESPITE the contributions of Lorleberg1, Hilton2, Hecht3, Cate4, Bacq6, and Das6, the picture of tunicate nervous relations is still incomplete. Although the central nervous system consists of only one ...
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    Nature 162 (1948), S. 963-964 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH Trypanosoma cruzi, the causative agent of Chagas' disease in South America, has been successfully cultivated in the embryonic tissues of the chick, attempts at growing this parasite in the developing chick embryo have hitherto led to inconclusive results. Roubaud and ...
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    Nature 162 (1948), S. 963-963 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN two instances, the distribution of isotopic carbon in the product of a metabolic process has been used to infer that a symmetrical intermediate compound is not involved. Wood et al.1 showed that isotopic carbon, introduced as carbon dioxide together with pyruvate, led to the ...
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