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  • 1
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1263-1263 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Dr. J. Dobrzyeki (Institute for the History of Science, Polish Academy of Science, Warsaw) and Dr. W. P. D. Wightman (Department of History and Philosophy of Science, King's College, Aberdeen) have written to the Editor as follows: "It is fairly generally known that early in his life, and some ...
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  • 2
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1263-1263 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE American Physical Society and Bell Telephone Laboratories have announced the establishment of a new Prize for outstanding contributions in the fields of electron and atomic physics. The award will be given in honour of the late C. J. Davisson and of L. H. Germer, former members of the research ...
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  • 3
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1264-1264 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE fiftieth International Esperanto Congress was held in Tokyo during August 18, 1965, under the patronage of Prof. Yuji Shibata, president of the Japanese Academy. This was the first such congress to take place in Asia. About 1,700 participants attended, from forty countries; all proceedings, ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1264-1264 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the article entitled "Transpiration as related to Internal Water Content", by Dr. E. R. C. Reynolds, which appeared on p. 1001 of the August 28,1965, issue of Nature, the quantities of water, where expressed as equivalent depths of water, are 61 times too ...
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  • 5
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1269-1270 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN recent years a recurrent theme in discussions of science teaching has been the inability of courses in applied science and engineering at universities to attract the best students. This has led to a good deal of selfanalysis and exposition of their aims by engineers, and to attempts to acquaint ...
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  • 6
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1275-1278 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MUCH effort has been expended in subdividing the Canadian Shield into suitable units of study. Early classifications14 were based primarily on strati graphic, petrological and structural similarities. Features such as parallel fold belts, foliation trends and truncation of ancient orogenic centres ...
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  • 7
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1273-1275 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] STACKS of target plates have been, spotwelded by the hypervelocity impact of a microparticle1. Parts of the plate surfaces became plastic under the impulsive load and were welded. Metallographic examination of the crosssection of the weld indicated that the structure was rippled2. The ripples show ...
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  • 8
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1284-1286 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RECENT papers have reported the presence of free and bound 2aminoethanephosphonic acid (AEP) in protozoa1'2 and the sea anemone3. This substance possesses a CP bond and represents the first example of such a bond in biological materials, but hitherto there has been no published information or ...
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  • 9
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1293-1294 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been shown earlier in rats that Xirradiation of the head at high doses reduces the susceptibility to seizure with maximal electroshock1. It was also observed that the pharmacological actions of central nervous system drugs such as anticonvulsants2 and barbiturates3 were enhanced in these ...
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  • 10
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1297-1299 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE molecular weight of interferon has been investigated by a number of workers. Burke1 purified chick interferon, prepared in chick chorioallantoic membranes, twentyfold to obtain material of molecular weight 63,000, which was homogeneous in the analytical ultracentrifuge. This figure for the ...
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  • 11
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1306-1306 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For small values of S, er is clearly much smaller than eg. While this result is indeed entirely reliable, its importance is not clear. If S/B 0, es becomes large compared to I for any finite value of B, while /I V B which can be made as small as desired by using long counting times. Hence no ...
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  • 12
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1265-1266 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CONFERENCES nowadays follow one another so \Jl rapidly that those most involved in them may find it hardest to assess their real objectives in relation to what they actually do and what, if any, further results flow from them. Yet the fact that conferences monopolize so much time of busy people and ...
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  • 13
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1270-1271 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH there have been several excellent symi\ posia on connective tissues, it is now too big a subject to cover adequately in a meeting of manageable size, and its various compartments tend to be treated separately. The acid mucopolysaccharides have been quite fully discussed from the metabolic ...
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  • 14
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1281-1282 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is the purpose of this article to present evidence that immature leucocytes in the peripheral blood of patients with chronic myelocytic leukaemia (CML) may return to the bone marrow and mature. Our findings offer a possible explanation for the prolonged peripheralblood disappearance time of CML ...
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  • 15
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1286-1288 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME parasitic protozoa can survive and multiply in host animals which show high levels of parasiticidal antibody developed as a result of infection1"4. In trypanosomiasis, repeated parasitaemias in the presence of lytic antibodies are produced by a succession of antigenic variants. Each variant ...
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  • 16
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1291-1293 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST drugs with an excitatory or stimulant action on the central nervous system (other than convulsants) have peripheral actions on adrenergic mechanisms. Imipraminelike antidepressants and cocaine enhance the contractions of the cat nictitating membrane in response to noradrenaline or electrical ...
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  • 17
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1299-1301 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE most widely accepted theory of the origin of life on this planet is that of Oparin1. According to this theory, the first living systems were heterotrophic and utilized the organic compounds then present in primaeval waters as their source of free energy. The acquisition of biosynthetic ...
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  • 18
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1305-1305 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Single crystals of ZnO were obtained from Minnesota Mining and Manufacturing Co., which have less than 55 parts per million impurities other than zinc. A hexagonal bar was cut from the central portion of the crystal rod to give it a constant dimension. The face area and the length of the crystal ...
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  • 19
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1311-1312 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Schmitt et al.* have analysed one of the eclogitic inclusions from Delegate (sample No. E 117) and four eucritic achondrites (Juvinas, Nuevo Laredo, Pasamonte and Stannern) for fourteen rare earth elements, yttrium and scandium. They interpreted their results by calculating the abundances in ...
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  • 20
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1312-1313 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Isotope derivative methods may be a valuable tool for quantitative evaluation of thinlayer chromatograms. Esterification with 14Cdiazomethane1 has been applied for this purpose, but the preparation of the reagent is rather complicated and expensive. We therefore applied a method according to which ...
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  • 21
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1318-1319 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On the basis of the selective adsorption of single stranded DNA on nitrocellulose fibres of a certain nitration degree (the most satisfactory preparation proved to be 'Nitrocell', supplied by the Serva Laboratories, Heidelberg), we have developed a simple method for the quantitative separation, in ...
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  • 22
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1322-1323 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] NRRL strain 786 of Penicillium digitatum was obtained from the American Type Culture Collection and propagated on potatodextroseagar slants containing a small amount of water extract of orange peel. A luxuriant, sporulating mat of the fungus was grown according to tho method of Wooster and ...
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  • 23
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1338-1338 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The agglutination procedure is performed by adding one drop of the test serum to one drop of the bentonite suspension and centrifuging for 2 min in a 'Serofuge'. A positive test is observed as varying degrees of clumping after gently flicking the tube, and is most easily read over a fluorescent ...
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  • 24
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1306-1307 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The derivation which I presented in my communication had the following basis: (1) it is well known that any experimental procedure which requires calculation of the desired result by subtracting two nearly equal quantities should be avoided if there is an alternative, because of the large errors ...
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  • 25
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1306-1306 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Doyle2 indicates that the use of truncations of the Schlomilch expansion yields: p(x) ~ f(A, x) = (x + A)~l x1 10 where A is 1 for the two term expansion, and 2 for the three term expansion. The functional form, sufficiently simple for computation, possesses maximum relative errors of 72 per ...
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  • 26
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1309-1310 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A detailed investigation of the oxidation of chromized plain carbon steels containing 035 and 078 per cent carbon has been made using thermogravimetric, metallographic and electronprobe microanalyser techniques to establish the overall pattern of kinetics, the redistribution of iron and chromium, ...
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  • 27
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1312-1312 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have examined the electron spin resonance spectrum of Mn2+ at a concentration of 1 equivalent per cent of exchangeable cations in 'Linde' 13X preexchanged with a variety of other ions. The Mn2+ ions can occupy different sites; their position depends on which other cations are present and the ...
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  • 28
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1314-1314 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1. PERCENTAGE OP TOTAL TONIZATION (£Q) OF SELECTED FRAGMENTS OF VALERALDEHYDE NITROPHENYLHYDRAZONES Valeraldehyde nitrophenyl M+ M+OH .M+HaO M+35 M+42 M+42fH,O hydrazones 2,4dinitro onitro pnitro 198 665 320 175 08 350 72 315 2816 190 280 096 The present report records ...
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  • 29
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1315-1317 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has been recognized for a long time that the best agreements can be reached for states of low up to medium densities, where the volume dependence of pressure is not so abrupt. Incomparably more delicate is the situation at greater densities and especially for the liquid state well below the ...
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  • 30
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1345-1347 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The immature endosperm of several plants undergoes proliferation on synthetic media, but only in two plants Santalum album1 and Eicinus communis2has the mature endosperm yielded a continuously growing undifferentiated tissue. Both these are under investigation in this laboratory. Fig. 1. Exocarpus ...
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1350-1351 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This communication describes a simple method for the isolation of macronuclei from the ciliate Tetrahymena after cell lysis in 'Triton X100'. Growth conditions for T. pyriformis GL and the method for collecting cells were the same as reported earlier7. Macronuclei were isolated from organisms in ...
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  • 32
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1354-1354 
    ISSN: 1476-4687
    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 University of Oxford. Lord Nuffield's Benefaction for the Advancement of MedicineReport for 1963-64. Pp. 28. (Supplement No. 1 to the University Gazette, Vol. 96, October 1965.) 2s. 6d. Report of the Committee on the ...
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  • 33
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    Nature 208 (1965), S. 1136-1136 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR. T. S. LITTLER is well known to the medical and educational profession as the director of the Wernher Research Unit on Deafness. His book, The Physics of the Ear, contains fifteen chapters with supplementary sections giving mathematical treatment of physical data. As the title would suggest, the ...
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    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1137-1138 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] STRUCTURES which qualify as 'plates' or 'shells' have O tended for years past to receive rather limited treatment in standard texts on applied elasticity and strength of materials. This is no doubt due to the extremely varied conditions of geometry and loading that can arise, and consequently ...
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    Nature 208 (1965), S. 1138-1138 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON the initiative of Dr. W. A. J. Costing of Benneken an effort was made in 1937 to establish a Dutch Study Circle for Agricultural History. The plan came to fruition in 1939, but the Studiekring was set up as a part of the Netherlandsch Genootschap voor Landbouwweten-schap. Dr. Costing was elected ...
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    Nature 208 (1965), S. 1140-1140 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] TRAVELLING-WAVE tubes have played such a unique part in the development of microwave communication links that they well merit close examination. Not only in their conception are they the result of an impressive flight of imagination, but also in their construction they incorporate some of the most ...
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    Nature 208 (1965), S. 1145-1151 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THROUGH the millennia of his birth, man was a JL poorly equipped, struggling omnivore inhabiting environments which offered special favour. Populations were small, and the product of a limited area was the sole support of its humans. As man the inventor, however, he added to his inadequate ...
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    Nature 208 (1965), S. 1152-1152 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE United Kingdom Atomic Energy Authority and Aktiebolaget Atomenergi, Sweden, have concluded an agreement for exchange of information and collaboration on fast reactor research and development. Information to be exchanged concerns design and operating experience from research and experimental ...
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    Nature 208 (1965), S. 1152-1153 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a written answer in the House of Commons on December 1, the Prime Minister, Mr. H. Wilson, stated that the Ministry of Technology would now assume responsibility for sponsoring the mechanical and electrical engineering industries as a whole, as well as for engineering standards. On these, it ...
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    Nature 208 (1965), S. 1339-1341 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Unlabelled or tritiated DMBA (01 mg; sp. act. = 14,500 mc./mmole) dissolved in acetone was deposited in lightshielded flasks and the solvent was evaporated off over an 80 C water bath. The particles were shaken in a complete medium (CM) consisting of 90 per cent Eagle's essential medium +10 per ...
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    Nature 208 (1965), S. 1343-1343 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fifty eels were kept in darkness for 35 weeks and then transferred to illuminated white or black backgrounds for 4 h. The pituitaries of the white background animals showed the following features in contrast to those of eels kept on a black background: (1) Many synapses between neurosecretory ...
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    Nature 208 (1965), S. 1344-1345 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has been previously observed that, in the stem sections of Lens culinaris, there is a predominantly basipetal movement of carbon-14 from applied IAA*. It has been assumed that gibberellic acid (GA) increases the uptake of IAA * and changes the auxin transport in these sections6. In the ...
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    Nature 208 (1965), S. 1157-1158 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AN Advanced Science Seminar supported by the U.S. 2~\. National Science Foundation was held at the Pennsylvania State University, State College, during August 29-September 10. The symposium was conducted by the School of Forestry with three other bodies: the Northeastern Forest Experimental ...
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    Nature 208 (1965), S. 1166-1169 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE synthesis of 2-trifluoromethylbenzimidazole was published in 19531 and since then a score of benzene-ring-substituted derivatives have been described in the literature, mainly emanating from the Birmingham School of Organic Chemistry2-8. Antibacterial8 and antiviral9 properties of some of these ...
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    Nature 208 (1965), S. 1175-1179 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have been examining the ability of various fractions of mouse DNA to form specific duplexes with homologous or heterologous DNA in agar1'2. One particularly convenient method of obtaining fractions which differ either in their degree of secondary structure or in their base composition is by the ...
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    Nature 208 (1965), S. 1187-1188 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A PLASTIC anaemia is characterized by the deficient /~\ production of peripheral blood cells and is nearly always attended, and presumably caused, by severe bone marrow hypoplasia. The fundamental cause of the condition is usually unknown, and although spontaneous remissions do occur, they are not ...
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    Nature 208 (1965), S. 1195-1196 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Emission and absorption lines showing such anomalous intensity distributions indicate unusual populations of energy levels in the OH molecules. The observed distri -butions are more like those expected of a chemical reaction mechanism, followed by radiative deactivation, rather than those from ...
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    Nature 208 (1965), S. 1197-1198 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The crystals used in the work recorded here were separated from the leaves and stems of Yucca rupicola Scheele collected from a native habitat near Oak Hill, Texas. Calcium oxalate monohydrate is present as an intracellular deposit9, either in the form, of solitary styloids (in the case of the ...
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    Nature 208 (1965), S. 1200-1200 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In view of the conflicting results it was decided to supplement the results of the previous study1 by using the same soil and studying the effects of addition of organic materials on the extent of loss of added nitrate over the moisture range from the wilting percentage to waterlogging. In ...
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    Nature 208 (1965), S. 1199-1200 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A value may be obtained from electron impact measurements by means of the relationship: Z〉(HN2H3) = ^(N2H3+) - I(N2H3) provided that the appearance potential, J.(N2H3+) from hydrazine, involves no kinetic energy and that the ionization potential, J(N2H3), is close to the adiabatic value. ...
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    Nature 208 (1965), S. 1201-1202 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The complex Fe(aca)2+ was reported to be formed from acetylacetone (Haca) reacting with Fe(III) at ^H = l-65-2-65 (ref. 4). To avoid the formation of Fe(aca)£ we have examined this reaction under conditions where the Fe(III)/ Haca ratio was maintained at between 100/4 and 300/4, and high acid ...
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    Nature 208 (1965), S. 1203-1204 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We now find that the ruthenium (II) complexevS, RuCla(PPh3)4 and RuCl2(PPh3)3, prepared respectively by the interaction of cold and refluxing methanol solutions of hydrated ruthenium trichloride with excess tripheriyl-phosphine, dissociate in benzene solutions2. Molecular -weight investigations ...
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    Nature 208 (1965), S. 1206-1207 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The time-course of 14C-cyanide incorporation by Chlorella cultures indicated that ^-cyanoalanine was the primary labelled product3: this is afterwards converted either into asparagine by the action of a hydrolysing nitrilase or into y-glutamyl-p-cyanoalanine by a y-glutamyl transferring enzyme. ...
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    Nature 208 (1965), S. 1209-1211 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The categorization of enzymes in terms of catalytically functional, active-centre residues is the direct consequence of the chemical specificity of selective reagents. Such reagents can also serve to identify amino-acid residues which function primarily through maintaining the structure of enzymes ...
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    Nature 208 (1965), S. 1153-1153 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE annual report of the Curators of the Bodleian Library for the year ended July 31, 1964, notes an overall increase of 10,000 on the previous year's figures for issues of books and manuscripts to readers and staff, while an increase in the number of newly admitted readers was almost wholly in ...
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    Nature 208 (1965), S. 1218-1219 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Giant axons 300-500^ in diameter were isolated from the squid Loligo peallii. Stimulating and recording electrodes made of 50[i silver wire were inserted longitudinally in an axon as it lay in a shallow pool of sea-water at a temperature of approximately 21 C. The stimulating electrode extended 7 ...
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    Nature 208 (1965), S. 1221-1222 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] An anaesthetized, adult, male rat of Sprague-Dawley origin weighing approximately 400 g was injected with 1-0 ml. of a sterile solution of spirits of turpentine, N.F., in corn oil (v/v); 0-5 ml. sub-cut aneously in the scapular area and 0-25 ml. intramuscularly in each thigh. Twenty-four hours ...
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    Nature 208 (1965), S. 1155-1155 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A SPECIAL Christmas holiday programme of films and talks will be held at the Geological Survey and Museum, South Kensington. The programme will include: "The Underwater Search" (December 28, film); "North Slope, Alaska", and "Fire Fight at Ahwaz" (December 29, films); "Volcanoes in Britain" ...
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    Nature 208 (1965), S. 1156-1156 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON October 20 there was an all-day discussion meeting at the Royal Society on the subject of visual observation of satellites. The meeting was organized jointly by the Royal Society and the British Astronomical Association, under the chairmanship of Prof. C. W. Alien (University of London ...
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    Nature 208 (1965), S. 1224-1224 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The extracts were prepared according to the method described by Aebi et al.*. Seven fractions were obtained: fats, phosphatides, waxes A, B, G (cord-factor) and D, and firmly bound lipids. It has been shown that only three of these fractions contained compounds capable of combining with ...
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    Nature 208 (1965), S. 1228-1228 
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    Notes: [Auszug] This tendency appears, a priori, to be possible (Fig. 1). If the growth ratios of rapidly growing parts differ greatly between very closely related forms, the final (adult) sizes and shapes of these parts would tend to be greatly different, and these forms would scarcely appear to be closely ...
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    Nature 208 (1965), S. 1169-1170 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE herbicidal and insecticidal properties of a series of substituted benzimidazoles have been described by Burton et al.1. These compounds are derivatives of 2-trifluoromethylbenzimida.zole: and are related in structure to 4,5,6,7-tetrachlorobenz-triazole, a compound investigated at these ...
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    Nature 208 (1965), S. 1174-1175 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE serotonin and catecholarnine content of snake venom is of interest because of their possible contribution to the profound vascular changes and pain produced by this toxic substance. Venoms which have a defensive use, such as those of insect origin, have been found to contain serotonin, the ...
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    Nature 208 (1965), S. 1236-1237 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Using the germ-free rat, we have established known microfloras composed of 1-4 predominating microorganisms of human intestinal origin. Our work complements that of Gibbons et al.* who established bacteria indigenous to the gingival crevice area of the mucous membranes of man in germ-free mice. ...
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    Nature 208 (1965), S. 1191-1193 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] In order to obtain the actual size of the grain at any instant, we made the further assumption that the speed of the grain remained constant throughout the motion, and was not affected by collisions with the gas molecules. In this communication we dispense with this assumption and take into account ...
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    Nature 208 (1965), S. 1198-1199 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] (1) Thermoluminescence. The samples were prepared as cylindrical pellets of diameter 1-25 cm and depth 1 mm, formed under pressures of about 4 tons/in2. Following irradiation in silicate glass tubes, in the presence of oxygen, glow curves were recorded using a technique identical to that described ...
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    Nature 208 (1965), S. 1200-1201 
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    Notes: [Auszug] Fig. 1. Arrhenjus plot for the thermal degradation of 'Viton A' rubber. Open symbols, 'Viton A'. 100-0, mag. oxide 15-0, Diak No. 3, 3-0. Filled symbols, as follows, plus M T carbon black 25-0. (Each compound mould cured for 30 min at 150 C.) A A, 9-0* C miirVSOO mg sample; VT 6-0/300; DB, ...
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    Nature 208 (1965), S. 1203-1203 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The complexes are readily generated by mixing rigorously purified solutions of the donor and acceptor. Special care must be taken to remove thiols, which are the major impurities in disulphides, since these react with TCNE. Table 1 lists some representative spectral data; several sulphides are ...
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    Nature 208 (1965), S. 1205-1206 
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    Notes: [Auszug] The fact that fragments of cristae membrane (sonic particles), segregated from sonically disintegrated mitochondria, will catalyse oxidative phosphorylrtion4, energy-linked transhydrogenation5, and other reversed electron-transfer reactions6 appears to favour the chemical hypothesis, because: (a) ...
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    Nature 208 (1965), S. 1208-1209 
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    Source: Nature Archives 1869 - 2009