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  • Nature Publishing Group  (3,725)
  • 1970-1974  (3,725)
  • 1971  (3,725)
  • 1
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    [s.l.] : Nature Publishing Group
    Nature 234 (1971), S. 505-505 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHAT could be more confusing for astronomers than non-velocity redshifts in quasars ? It now seems that there may be nonvelocity redshifts in normal galaxies. The first claim that quasar redshifts were not caused by Doppler velocities of recession (H. Arp, Science, 151, 1214 ; 1966) was met with ...
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  • 2
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    Nature 234 (1971), S. 507-507 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BOVINE serum albumin is above all a protein chemist's protein; and if its mesmeric effect within such circles does not always communicate itself to those outside, some new studies on aspects of its behaviour deserve to be advertised more widely, both as immaculate pieces of research and for their ...
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  • 3
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    Nature 234 (1971), S. 508-509 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WIDESPREAD interest in biotelemetry has existed in South Africa only for the past five years or so. The good attendance at the symposium on biotelemetry, arranged by the Council for Scientific and Industrial Research (CSIR) at the University of Pretoria (November 29-December 2), suggests, however, ...
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  • 4
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    Nature 234 (1971), S. 510-510 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a symposium on alcohol in nutrition, organized by the Nutrition Society at the Middlesex Hospital Medical School, London, on December 3, the chairman, Professor Sir Charles Dodds, in his opening address stressed the importance of improving knowledge and understanding of the effects of alcohol in ...
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  • 5
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    Nature 234 (1971), S. 526-528 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Automatic clustering methods are shown to provide a basis for adaptive pattern recognition when neither the number nor the specifications of classes are known in ...
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    Nature 234 (1971), S. 499-499 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR HOY, in a paper lead before the Wisconsin Academy of Sciences, Aits, and Letters, remarks, in refeience to the mammals of Wisconsin, that the elk existed m that State as late as 1863, but is now probably extinct. The moose is still found in consideiable numbers. The last buffalo was killed in ...
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  • 7
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    Nature 234 (1971), S. 509-509 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LAST September in Nature New Biology (233, 12; 1971) Heiser, Davies and Dahlberg reported the striking discovery that the resistance of Escherichia coli to the antibiotic kasugamycin stems from a change in the 16S RNA moiety of 30S ribosomal subunits and not from a mutation resulting in a change in ...
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  • 8
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    Nature 234 (1971), S. 568-568 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS little book is a careful, authoritative, but simple introduction to this rapidly expanding subject. It is heartening to see a first engineering text in this field of so much engineering promise, and to see it clearly written, free of mistakes, and surprisingly complete on the basic science ...
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  • 9
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    Nature 234 (1971), S. 441-441 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ARCTIC seas are not, for obvious reasons, heavy shipping areas, with the result that bathymetry is poorly known and possible hazards to shipping are almost completely uncharted. The discovery of oil in Alaska and the use in 1969 of the SS Manhattan to test the feasibility of waterborne access to ...
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  • 10
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    Nature 234 (1971), S. 545-546 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The rock flakes in the Perth Basin consist of bryozoan chert, non-fossiliferous chert, quartzite, dolerite, granite, K-feldspar, and other material, and usually range from less than 1 cm to 5 cm in diameter. The most prolific sites are blown-out areas near the tops of fixed dunes overlooking ...
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    Nature 234 (1971), S. 547-548 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A tissue culture stock of the Schmidt-Ruppin strain of Rous sarcoma virus (SR-RSV) was prepared by infection of 9 day old chick embryo fibroblasts. Culture medium 199 with 5% inactivated calf serum and 10% tryptose phosphate was used (Gibco). The medium was collected 7-10 days later and stored at ...
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  • 12
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    Nature 234 (1971), S. 463-465 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The age of the Earth, T0, is believed to be close to 4.55 x 109 yr (refs. 12 and 13). This age is based on the discovery that the isotopic composition of modern terrestrial lead falls on the meteoritic isochron, which records a differentiation of lead relative to uranium within meteorites at this ...
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  • 13
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    Nature 234 (1971), S. 468-470 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] After the Second World War observations were resumed, and since 1965 there has been a return to the conditions which were familiar in the 1920s5,6. Evidence from a number of sources confirms these changes, including observations on nutrient salts, primary productivity, phytoplankton succession and ...
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  • 14
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    Nature 234 (1971), S. 475-475 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Pedigree studies by Lawler and her co-workers1 established a close linkage (0.03 morgans) between Rh, the rhesus set of blood group loci, and one of the loci, El1t that can lead to elliptocytosis of the red cell. There seems to be, in addition, at least one isophenic, or mimicking, locus2 which is ...
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  • 15
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    Nature 234 (1971), S. 485-487 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Percentage Birth Rank Distribution by Sibship Size by Year of Birth of the General Population Control Sample Sibship Birth rank size Year of birth 1 2 3 4 5 6 7 8 9 10 Not known Total Before 1910 45.5 54.5 5 49 2 1910-29 53.9 46.1 4 158 ...
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  • 16
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    Nature 234 (1971), S. 479-479 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR HEPTONSTALL writes: I agree with Yalden that before comparing specimens of a living species with Archaeopteryx with a view to estimating the live weight of the latter, one must know both the weight and the skeletal dimensions of the living specimens. This relationship in Pennycuik's ...
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  • 17
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    Nature 234 (1971), S. 490-490 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EACH new volume of Whiteside's exemplary edition of Newton's mathematical papers adds significant features to the picture we may try to form of this secretive genius. The present volume reveals Newton as a geometer: a third of it (part II) is devoted to remarkable geometrical research, datable from ...
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    Nature 234 (1971), S. 493-493 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-The terrestrial environments of the Earth have been divided by ecologists into a series of "biomes", according to variations in climatic and geophysical factors. Within these biomes, a large variety of different types of habitat have been recognized, each with more or less distinct floral and ...
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    Nature 234 (1971), S. 495-496 
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    Notes: [Auszug] not included in the Monthly Books Supplement Great Britain and Ireland Marine Biological Station, University of Liverpool. Annual Report No. 83 for 1970. Pp. 54. (Port Erin, Isle of Man: Marine Biological Station, 1971.) [279 Freshwater Biological Association. Thirty-ninth Annual Report for the ...
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    Nature 234 (1971), S. 373-374 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE 1970s will be formative years for the pattern of broadcasting in Britain, and already there are several signs of the way the wind is blowing. Since the summer, the British government, true to its election promises, has been waving on the bidders for licences to operate commercial radio ...
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    Nature 234 (1971), S. 376-376 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the most absorbing lectures delivered at the Unesco seminar on the effect of wind on building and structure, held on November 22-26 at Manila, Philippines, was by Professor Sean Mackey, University of Hong Kong. He discussed work on a ten storey building on Hong Kong island that has recently ...
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    Nature 234 (1971), S. 377-377 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AFTER nearly a year of debate, with some of the most intensive lobbying ever devoted to scientific research, Congress has finally decided on a plan for organizing cancer research in the United States. President Nixon is said to be happy with the legislation and ready to sign it into law, thereby ...
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    Nature 234 (1971), S. 381-381 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FROM next October an MSc course in animal taxonomy will be organized by the Department of Zoology and Applied Taxonomy at Imperial College, London, in collaboration with its neighbour in South Kensington, the British Museum (Natural History). This will be the first postgraduate course devoted ...
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] We now describe studies carried out by the indirect immuno-ferritin labelling technique2'3 on the type C virus particles of the ESP-1 cell line. The extreme sensitivity of the immuno-ferritin technique in specific labelling of individual virus particles4-6 provides a valuable tool for study of ...
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    Nature 234 (1971), S. 419-420 
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    Notes: [Auszug] Only recently have I seen that some very obvious considerations resolve the paradox, and the "surprising feature" is just what common sense should have led one to expect Though I confess it has taken me a long time to see the obvious, I have little doubt that many readers will see it as soon as ...
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    Nature 234 (1971), S. 425-425 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,?In your editorial "How Much is Enough?" (Nature, 234, 115 ; 1971) you discuss the difficulty of forecasting population growth, and you ask whether the forecaster?in this case the Government Actuary?should "settle for more modest but more realistic goals". An interesting question, but not ...
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    Nature 234 (1971), S. 426-426 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,?For a long time we have had to live with the annoying fact that Americans and Europeans cannot use the word billion without a risk of confusion. Perhaps it would be possible to persuade people on both sides of the Atlantic to add just two extra letters to indicate how big the billion is meant ...
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    Nature 234 (1971), S. 316-316 
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    Notes: [Auszug] EARLIER this week the latest in the Ariel series of British satellites was being prepared for launch from the Western Test Range in California on December 11. The satellite is a repetition of the previous satellite in the series, Ariel 3, but with many significant modifications and improvements. An ...
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    Nature 234 (1971), S. 316-316 
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    Notes: [Auszug] PROFESSOR A. L. HODGKIN was re-elected president of the Royal Society at the anniversary meeting of the society held last week. The other officers re-elected were Sir Frederick Bawden, Rothamsted Experimental Station, treasurer; Sir Bernard Katz, University of London, biological secretary; and Sir ...
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    Nature 234 (1971), S. 319-319 
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    Notes: [Auszug] A MUCH needed inquiry into the relevance of school teaching in industrial training is to be undertaken in a four year research project at the Centre for Science Education, Chelsea College of Science and Technology. The project, financed by a grant of £45,580 provided jointly by the ...
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    Nature 234 (1971), S. 322-322 
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    Notes: [Auszug] THE standard way to deal with any vexed problem is to appoint a committee to chew over the issue in the hope that it will come up with a workable solution. The social, ethical and legal implications of advances in biochemical research are, it seems, no exceptions to this general rule, for the ...
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    Nature 234 (1971), S. 322-322 
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    Notes: [Auszug] LAST year, 74,000 coyotes were killed as a result of federally financed poisoning programmes, which have been under the control of the Department of Agriculture for the past 40 years. But, according to Senator Gale W. McGee, there has never been a census taken of the number of coyotes in the United ...
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    Nature 234 (1971), S. 326-326 
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    Notes: [Auszug] THE closely related group of RNA phages which include R17, MS2 and f2 possess genomes which specify only three proteins, namely coat and assembly proteins, which form part of the viral capsid, and a subunit of the viral re-pi icase. The phage Qβ, which is not in the same serological subgroup as R17 ...
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    Nature 234 (1971), S. 327-328 
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    Notes: [Auszug] TUMOUR virologists are, of course, always on the lookout for new parameters which they can measure and thereby decide whether a cell is transformed or untransformed. The classical parameter, the continued division of transformed cells in environments which severely restrict or totally inhibit the ...
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    Nature 234 (1971), S. 335-337 
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    Notes: [Auszug] Central peaks in Martian craters in the south polar region occur more frequently than their equatorial counterparts and the peak frequency statistics and crater morphologies imply that preferential peak production has taken ...
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    Nature 234 (1971), S. 342-343 
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    Notes: [Auszug] Table 1 Single-line Binaries from the Trimble and Thorne List with P 〈 5 Days, e 〈 0.13 Star Spectral Aprox-type imate Period (days) Corrected . v , radial velo- ' KR' e City VR 〈 K2r 〉i distance (km s"1) HD 40005 B3V 430 pc 3.306 (0.037) + 5 0.5 201 G Sgr A3III 140 pc 4.625 (0.049) ...
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    Nature 234 (1971), S. 347-348 
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    Notes: [Auszug] Although this error is most regrettable, it does not in any way alter or invalidate the argument put forward in my letter concerning the unsuitability of the Denver-London system for analysing highly abnormal chromosome constitutions. I thank Professor P. C. Roller for bringing this mistake to my ...
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    Nature 234 (1971), S. 354-355 
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    Notes: [Auszug] All these agents can bind the cytoplasmic protein that seems to form microtubules3,8. In melanophores of the teleost Fundulus heteroclitus, microtubules are aligned parallel to the direction of pigment movement, and persist whether the melanin granules are dispersed or aggregated9,10. Besides ...
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    Nature 234 (1971), S. 360-360 
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    Notes: [Auszug] Drs Payne, Child and Forrest write: Dr Gruchy's criticism of our proposed nomenclature is quite valid and we accept that the European subspecies of the Atlantic salmon should be called Salmo salar salar L. according to the International Code of Zoological Nomenclature. The choice of a correct name ...
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    Nature 234 (1971), S. 362-362 
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    Notes: [Auszug] We doubt the precision of the method used to measure the extent of an individual's belief in the supernatural. Each subject was rated on a scale from 0 to 20 according to his assessment of strength of his belief in certain phenomena. It is not clear if he was rated by himself or by the interviewer. ...
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    Nature 234 (1971), S. 363-363 
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    Notes: [Auszug] WHEN Boole applied algebraic techniques to logic in 1847, he was thinking of logic in the traditional manner, as the theory of correct inference; and both Frege and Russell also confined their attention to such subject matter when they sought to exhibit logic as the ultimate foundation of pure ...
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    Nature 234 (1971), S. 366-366 
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    Notes: [Auszug] IN recent years, immunologists and geneticists have come to rely heavily on the properties of anti-antibodies. Studies of inheritance of genetic markers of immunoglobulin molecules, synthesis of these proteins at cellular level and the phenomenon of allotype suppression induced in rabbits and mice ...
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    Nature 234 (1971), S. 369-370 
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    Notes: [Auszug] COLIN HOUGHTON CADMAN, plant pathologist and Director of the Scottish Horticultural Research Institute, Dundee, died on September 27, aged 55. After graduating from Liverpool University with First Class Honours in Botany he first worked at the Scottish Plant Breeding Station, Edinburgh, on the ...
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    Nature 234 (1971), S. 370-370 
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    Notes: [Auszug] THE title of the article by V. P. Starr (Nature, 233, 186; 1971) should be "Eddy Viscosity and the Solar ...
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    Nature 234 (1971), S. 370-370 
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    Notes: [Auszug] not included in the Monthly Books Supplement Great Britain and Ireland The Science of Botany: From Simple Lore to Social Need. By Professor A. G. Morton. (Inaugural Lecture, 15th March 1971.) Pp.18. (London: Chelsea College, University of London, 1971.) [168 Annual Report of the Meteorological ...
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    Nature 234 (1971), S. 252-253 
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    Notes: [Auszug] THE objective of a symposium on November 15 at the Liverpool Polytechnic on the subject of metal matrix composite materials was to bring together research workers and potential consumers for an exchange of current views on the usefulness of these composite systems and possible future developments. ...
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    Nature 234 (1971), S. 254-254 
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    Notes: [Auszug] IN attempting to fit the observational data of quasars at radio and optical wavelengths to a reasonable cosmo-logical model, it is necessary to assume some form of evolutionary behaviour of the sources. Different workers have, however, disagreed about the precise nature of this evolution. For ...
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    Nature 234 (1971), S. 255-259 
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    Notes: [Auszug] This article describes the state of knowledge about insect sound production and hearing with special reference to Drosophila and some larger ...
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    Nature 234 (1971), S. 270-270 
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    Notes: [Auszug] Statistical Papers of George Udny Yule. Selected by Alan Stuart and Maurice G. Kendall. Pp. viii + 447. (Charles Griffin: London, August 1971.) £6.90. GEORGE UDNY YULE, who was born in 1871 and died in 1951, was certainly a peer of the statistical realm. Some knew him as one of England's ...
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    Nature 234 (1971), S. 271-271 
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    Notes: [Auszug] One of a collection of anatomical models made in wax by Clemente Susini (1754-1814) which can be seen in the Specola Museum, Florence. This city has a history of scientific achievement dating from Etruscan times which is recorded and profusely illustrated in La Scienza a Firenze (edited by G. ...
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    Nature 234 (1971), S. 278-278 
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    Notes: [Auszug] Textbook of Polymer Science. Second edition. By Fred W. Billmeyer, jun. Pp. xiv+598. Published by (Wiley: New York and London, June 1971.) £7.50. THIS textbook is a revised edition of that produced almost ten years ago. It comprises five sections dealing respectively with characterization of ...
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    Nature 234 (1971), S. 271-272 
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    Notes: [Auszug] Medical History and Medical Care: A Symposium of Perspectives. (Arranged by the Nuffield Provincial Hospitals Trust and the Josiah Macy jun. Foundation.) By Gordon McLachlan and Thomas McKeown. Pp. xii + 244. (Oxford University: London and New York, 1971.) £3. THIS book is the record of a ...
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    Nature 234 (1971), S. 273-274 
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    Notes: [Auszug] Abstracts and Abstracting Services. By Robert Collison. Pp. 122. (Clio: Santa Barbara, California, and Oxford, May 1971.) $4.75., THIS book gives a fairly wide survey of the history and current practice of abstracting, and deals with the nature and style of abstracts, the writing, editing ...
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    Nature 234 (1971), S. 274-275 
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    Notes: [Auszug] Theory of Relativity Based on Physical Reality. By L. Jánossy. Pp. 317. Published by (Akadémiai Kiadó: Budapest, 1971.) £5. The Conceptual Foundations of Contemporary Relativity Theory. By John Cowperth Graves. Pp. xi + 361. Published by (MIT: Cambridge, Massachusetts, ...
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    Nature 234 (1971), S. 277-278 
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    Notes: [Auszug] Strengthening Methods in Crystals. (Elsevier Science Series.) By A. Kelly and R. B. Nicholson. Pp. 627. Published by (Elsevier: Amsterdam, London and New York, 1971.) £12.50. MANY of us, I suspect, look at edited books with suspicion, since far too often they lack a systematic approach or ...
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    Nature 234 (1971), S. 288-288 
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    Notes: [Auszug] Behaviour of Wolves, Dogs and Related Canids. By M. W. Fox, Pp. 214. Published by (Jonathan Cape: London, September 1971.) £3.60. A BOOK of this title is likely to arouse interest among students of animal behaviour and pet-keepers alike; it is probable, however, that the first of these two ...
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    Nature 234 (1971), S. 289-289 
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    Notes: [Auszug] 200,000,000 Years Beneath the Sea. By Peter Briggs, Pp. 228. Published by (Holt, Rinehart and Winston: New York, Chicago and San Francisco, September 1971.) $7.95. THE author of this book has considerable experience at sea and as a science journalist. The title of his book refers to the ...
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    Nature 234 (1971), S. 163-164 
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    Notes: [Auszug] THE publication of the Rothschild and Dainton Reports (see page 169) marks the beginning of yet another period of heart-searching about the organization of British science. The chances are that the process will on this occasion be a good deal less gentlemanly than in the past ?even the fierce ...
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    Nature 234 (1971), S. 310-310 
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    Notes: [Auszug] SIR,?I suppose that your highly irresponsible editorial of November 5 (Nature, 234, 2; 1971) under the heading "Alice Economics" need not be considered seriously, but there is a danger that what you have written will be read by "young people and other innocents", to use your own phrase in the other ...
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    Nature 234 (1971), S. 164-164 
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    Notes: [Auszug] M. JOLY, a distinguished member of the French Academy of Medicine, has recently read a paper before that learned society, in which he attributes the enervation of the nation, as evinced during the late war, to the combined effect of alcohol and nicotine upon the national character. "Tobacco," says ...
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    Nature 234 (1971), S. 165-166 
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    Notes: [Auszug] A RECOMMENDATION that will be welcomed by the space science community in Britain is that an independent space agency be set up to be responsible to the Minister for Aerospace for all Britain's civil interests in space. This recommendation, made by the Select Committee on Science and Technology in ...
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    Nature 234 (1971), S. 166-166 
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    Notes: [Auszug] IN spite of assurances to the contrary, the United Kingdom Association of Professional Engineers (UKAPE) is forming a Civil Service Division which hopes to be recognized by the Civil Service Department as the negotiating body for government engineers who are, at present, represented by the ...
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    Nature 234 (1971), S. 167-167 
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    Notes: [Auszug] THE first meeting of the advisorygrou which is to help to direct the Expanded Programme of the World Health Organization on research, development and training in human reproduction was held in Geneva from November 22 to 26 (see Nature New Biology, 234, 3; 1971). Invitations to attend the meeting ...
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    Nature 234 (1971), S. 173-174 
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    Notes: [Auszug] SINCE the snake venom toxin a-bungarotoxin was reported to be a unique tool for the investigation of cholinergic receptor sites because of the highly specific manner in which it binds to such ,sites (Changeux et al., Proc. US Nat. Acad. Sd., 67, 1241 ; 1970 ; Miledi et al., Nature, 229, 557 ; ...
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    Nature 234 (1971), S. 177-177 
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    Notes: [Auszug] WHEN bacteriophages such as P22, X, or the T even phages infect bacteria the oveiall RNA and protein synthesis of the infected cell is either transiently or permanently depressed. Where a lyso-genic phage such as P22 is involved this depression of the host's macromolecular metabolism is permanent ...
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    Nature 234 (1971), S. 179-180 
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    Notes: [Auszug] IN the past few months, Washington's science policy machinery has been working overtime on plans that could significantly alter relationships between science and government in the United States. The result of all this work is likely to be a change of direction in American science policy rather than ...
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    Nature 234 (1971), S. 199-203 
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    Notes: [Auszug] The space density of gravitational lens images as a function of redshift is calculated for various cosmological models. One cannot interpret all QSOs as gravitational lens images, unless there is a substantial amount of evolution with z in the sources of the lens images, and also a large fraction ...
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    Nature 234 (1971), S. 220-221 
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    Notes: [Auszug] Watanabe4 found that factor S-a exhibited no superinfection immunity with any of several fi+ or ft- R factors. We wish to report that S-a and two of Watanabe's R factors from A. liquefaciens carrying chloramphenicol resistance (our designations RA3 and RA4) constitute in Escherichia coli K12 a new ...
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    Nature 234 (1971), S. 223-224 
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    Notes: [Auszug] If nalorphine, a narcotic antagonist, is injected into mice which have been chronically injected with morphine, it precipitates a withdrawal syndrome which includes hyper-motility, tremors, diarrhoea, micturition and piloerection2. The "intensity" of the syndrome was rated by Huidobro and Maggiolo ...
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    Nature 234 (1971), S. 230-231 
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    Notes: [Auszug] A survey of 321 university students, made as a statistical exercise in the conducting of a sample survey, rather than for medical implications, is shown in Table 1. (The X2 values are calculated using Yate's continuity correction.) Table 1 Handedness and Birth Order All Male Female Birth ...
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    Nature 234 (1971), S. 117-117 
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    Notes: [Auszug] THE establishment of a computer purchasing board is recommended to resolve the involved and intricate process by which the British government buys computers. In a report published yesterday the Select Committee on Science and Technology calls for an end to the present system that involves ...
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    Nature 234 (1971), S. 120-121 
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    Notes: [Auszug] CLEAR signs of optimism for the prospects of producing marketable power from controlled nuclear fusion emerged in Washington last week. Indeed, one expert on the subject even went so far as to declare that "progress towards power through nuclear fusion is now limited by resources available to the ...
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    Nature 234 (1971), S. 124-125 
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    Notes: [Auszug] ONE of the problems facing the structural geologist is that of determining the net displacement related to crustal shortening across an orogenic fold belt; indeed, it is often difficult to determine even the orientation of displacement vectors giving the direction in which the opposing edges of the ...
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    Nature 234 (1971), S. 125-125 
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    Notes: [Auszug] THE way in which radiation from a quasar in different parts of the electromagnetic spectrum is related to one common source-if it is related to a common source at all-remains a mystery. One of the best ways to investigate such a relation is to study fluctuations at different wavelengths in the same ...
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    Nature 234 (1971), S. 127-128 
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    Notes: [Auszug] WE know more about the biology of R17, QB and the other RNA phages- the simplest known phages-than any other group of viruses. The three genes which comprise their genome have been mapped and their functions defined, and two of the proteins specified by these genes have been sequenced. Large ...
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    Nature 234 (1971), S. 132-134 
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    Notes: [Auszug] Mass spectrometric measurements of plutonium isolated from Precambrian bastnasite confirm the presence of 244Pu in nature. Although the existence of 244Pu as an extinct radioactivity has been postulated to explain the xenon isotope ratios observed in meteorites, this ...
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    Nature 234 (1971), S. 138-140 
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    Notes: [Auszug] Table I Pyroxenes ; wt. % Oxides; Mol % End Members Group 1 Group 2* No. 1 No. 2 Average Range Na20 0.0 0.0 0.03 0.01-0.04 MgO 19.6 19.8 14.0 13.7-14.3 A1203 0.63 1.43 1.32 0.97-1.51 SiO2 51.0 51.7 52,2 51.7-52.6 CaO 1.16 1.70 21.6 20.8-22.8 TiO2 0.24 ...
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    Notes: [Auszug] Cysteamine was injected intraperitoneally into female CS1 specific pathogen-free mice which were then irradiated at various times with 250 kVp X-rays filtered through 0.5 mm copper and 0.5 mm aluminium and delivered at a dose rate of 200 rad/min. Seven days later ?µ?? 59Fe was injected ...
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    Nature 234 (1971), S. 153-154 
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    Notes: [Auszug] This loss of metallic copper has prompted me to investigate the interaction of metallic copper with various biological substrates. In all experiments electrolytic grade copper foil of various dimensions was placed in solutions of substrates incubated at 37.5 C. After various times of incubation ...
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    Nature 234 (1971), S. 157-158 
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    Notes: [Auszug] It is a matter for experiment to discover the kinds of sensory data used for giving perceived size and distance We know that perspective convergence of parallel lines and texture gradients are important, especially so for vision with a single fixed eye, as in viewing pictures We know less about ...
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    Nature 234 (1971), S. 62-62 
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    Notes: [Auszug] STATIC tests are now under way on Britain's hovertrain after four years of development by Tracked Hovercraft Ltd. Running tests will be made on the mile long track at Earith near Cambridge in a few weeks' time. Two British developments form the basis of the hovertrain. The jet air cushions ...
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    Nature 234 (1971), S. 67-67 
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    Notes: [Auszug] Uranium Enrichment REPRESENTATIVES of the Australian, Japanese and Canadian nuclear industries met in Washington last.week with officials of the AEC and the Department of State to discuss the possibility of using US gaseous diffusion technology in multinational uranium enrichment plants. This was ...
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    Nature 234 (1971), S. 72-73 
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    Notes: [Auszug] INTEREST in the potential of remote sensing techniques has been slow to develop among field scientists in the United Kingdom compared with their colleagues in North America. This can very largely be explained by the relatively high cost of remote sensing operations, the scarcity of suitable sensors ...
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    Nature 234 (1971), S. 73-74 
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    Notes: [Auszug] A PROBLEM of interest to neurobio-logists for some time has been that of the development of neural connexions. Many approaches, involving a variety of techniques, have been used in this rather diffuse field of study, but one of the more successful has been the observation of changes in ...
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    Nature 234 (1971), S. 75-78 
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    Notes: [Auszug] Recent discoveries in the red beds of the Upper Trias have shed light on the history of the ornithischian dinosaurs. It is suggested that these dinosaurs had a monophyletic origin among advanced pseudosuchian thecodonts. Development of their rather bird-like pelvis involved backwards rotation of ...
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    Nature 234 (1971), S. 89-92 
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    Notes: [Auszug] It now seems extremely improbable that the Earth's core represents a high pressure phase transformation of mantle material10, and the first hypothesis may accordingly be dismissed. There are also difficulties associated with the second hypothesis. Urey has pointed out that the moment of inertia of ...
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    Nature 234 (1971), S. 97-98 
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    Notes: [Auszug] Gordon and Judd do not directly contest our explicit criticisms of Flory's method, but rather claim to have derived the Flory distribution by another method. Their method is based on the use of a "fundamental" equilibrium constant, independent of chemical combinatorics, to describe the driving ...
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    Nature 234 (1971), S. 100-102 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To evaluate these hypotheses, extracellular microelectrode recordings were made from single neurones in the rat locuscoeruleus, before and after treatment with amphetamine. Chlorpromazine was also given to evaluate its anti-amphetamine effects; such effects have been described previously in both ...
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    Notes: [Auszug] The basic design of experiment involved culture of newborn mouse thymocytes and adult mouse bone marrow in the presence of PHA. In the parallel series of experiments the same kinds of parental cells were injected singly or in combination into Fj hybrid recipients in order to induce a graft versus ...
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    Nature 234 (1971), S. 108-110 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Tissue samples of blubber, and in some cases, brain liver and muscle, were collected from animals of both sexes and various ages between September 19 and December 10, 1970. These were four apparently healthy adults (one male and three females) shot at San Miguel Island, 56 km from Santa Barbara, ...
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    Nature 234 (1971), S. 111-112 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE name of Joseph Banks is most familiar as the associate of James Cook on his epic voyajge around the world in the Endeavour (1768-71), and since the bicentenary celebrations in Britain and Australia this connexion has been many times reinforced. Banks's part in that voyage has to some extent ...
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    Nature 234 (1971), S. 112-112 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS volume contains the proceedings of the first international research conference on proteinase inhibitors which was held in Munich in November 1970. The conference covered a wide area and started quite rightly with four contributions on proteinase inhibitors in human medicine. Following these ...
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    Nature 234 (1971), S. 114-114 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the article "Unique Bedrock and Soils associated with the Teesdale Flora" by G. A. L. Johnson, D. Robinson and M. Hornung (Nature, 232, 453; 1971), an unfortunate transposition of lines occurred. The first three lines of column 2, page 454, should follow immediately after the fifth line of the ...
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    Nature 234 (1971), S. 2-2 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Now that Mr Edward Heath has won his majority for the right to spend the coming year battling legislation concerned with the European Communities through the House of Commons, the recriminations are bound to be thrown thick and fast. The oddest so far is from Professor R. S. Scorer, professor of ...
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    Nature 234 (1971), S. 1-1 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THESE are confusing times for those who hope that the partial test-ban treaty will one of these days be extended to cover explosions beneath the ground. In the United States (see page 6) President Nixon seems finally to have agreed to let the underground test in the Aleutians take place. The Joint ...
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    Nature 234 (1971), S. 5-5 
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    Notes: [Auszug] THE Social Science Research Council was particularly concerned with finance during the past year and its plans for increasing support for research and training students received a severe setback when government support for the research councils was cut in the autumn of 1970. Mr Andrew Shonfield, ...
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    Nature 234 (1971), S. 10-11 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] JUST as the structure of DNA was the basic problem which had to be solved before molecular biology could become a meaningful discipline, so the structure of the eukaryotic chromosome is the vital issue which must be resolved before research today in cell biology can produce a coherent set of ...
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    Nature 234 (1971), S. 12-12 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] COLUMNAR basalts have seldom, if ever, been used for palaeomagnetic purposes, partly for the obvious reason that they occur only infrequently but partly because their peculiar structure induces the suspicion that directions of magnetization may be dependent on factors other than ancient field ...
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    Nature 234 (1971), S. 14-14 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE notion that initiation factors in Escherichia coli, by regulating the binding of ribosomes to specific "start translating" signals in messenger RNAs, regulate the expression of particular genes at the level of protein synthesis, receives further support in next Wednesday's Nature New Biology. ...
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    [s.l.] : Nature Publishing Group
    Nature 234 (1971), S. 13-14 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the most encouraging things about the present renaissance in chemical kinetics is the steady advance of both theory and experiment along lines which interconnect to a far greater degree than seemed possible ten years ago. While experimentalists are continually refining the accuracy with ...
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