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  • Springer  (135,881)
  • Nature Publishing Group  (10,521)
  • Cambridge University Press  (5,545)
  • 1980-1984  (103,503)
  • 1975-1979  (48,444)
  • 1984  (54,559)
  • 1981  (48,944)
  • 1979  (48,444)
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  • 101
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    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 622-623 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The computational theory of binocular vision2^, which demonstrates how vertical disparities can be used to discover the distance to the fixation point (d) and the angle of gaze (g) with which the fixation point is being viewed, is introduced in rf. 5. One prediction of the theory is that vertical ...
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  • 102
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    Nature 309 (1984), S. 624-626 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Neurones respond to axonal injury with the retrograde cell reaction0chromatolysis and displacement of the nucleus which may be followed by recovery, or, for centrally projecting neurones in mammals, often by degeneration of the entire cell7'8. Lesions of optic axons cause retrograde degeneration of ...
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  • 103
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Table 1 Multi-drug rsistance and 1.1-kb fragment amplification in different cell lines Degree of 1.1-kb Cell line V79 Relative resistance to: Adriamycin Colcemid 1 1 fragment amplification 1 77A 5 7 5 LZ 3,000 436 60 LZ revertant 7 10 CHO Aux Bl . 1 1 1 C5 150 280 20 Isolation and ...
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  • 104
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    Nature 309 (1984), S. 629-631 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] While analysing thymic repopulation in allogeneic bone marrow chimaeras we noted one chimaera16in which the allogeneic bone marrow cells differed from the host for both major histocompatibility complex (MHC) encoded antigens and Thy-1 typethat showed one lobe of the thymus entirely reconstituted ...
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  • 105
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    Nature 309 (1984), S. 631-633 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The total protein composition and rates of protein synthesis before and after haemin induction of K562 cells were examined (Fig. 1). After 40 h of incubation with 25 ? haemin, approximately 95% of the K562 cells stained positively with benzidine. The two-dimensional electrophoretic analyses (Fig. ...
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  • 106
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Figure la shows the binding of C3b-coated erythrocytes to HSV-1 infected endothelial cells by light microscopy. Rosettes (〉4 erythrocytes per endothelial cell) were found with 70% of infected endothelial cells: no rosettes formed around uninfected cells, nor around infected cells incubated with ...
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  • 107
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    Nature 309 (1984), S. 635-637 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Three Ubx mutations have previously been mapped by genetic recombination. All were found to lie at or close to the right-hand end of the Ubx unit defined by chromosome rearrangements1'7'8. When the DNA of these and other Ubx 'point' alleles was examined, four apparently point Ubx mutations were ...
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  • 108
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    Nature 309 (1984), S. 637-639 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have chosen the b-lactamase encoded by the Escherichia coli plasmid pBR322 as a model for a prokaryotic secretory protein and Xenopus oocytes as eukaryotic test cells. /3-Lactamase is the major protein secreted into the periplasm of E. coli cells carrying pBR322 and inactivates ampicillin, thus ...
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  • 109
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    Nature 309 (1984), S. 639-640 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The existing H-2 mutants were originally identified by circular skin-grafting experiments among sibling mice7'8. This system of mutants is notable because: (1) the rate of observed mutation is very high, about 1 in 2,500; (2) individual mutational events result in multiple amino acid substitutions; ...
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  • 110
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    Nature 309 (1984), S. 640-642 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] As previously reported, the leukaemic cells of most ATL patients contain one or two copies of HTLV provirus4'11, but the size of the coRI-digested DNA fragment containing the provirus and cellular flanking sequences differs between individuals, suggesting that the integration sites of the HTLV ...
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  • 111
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    Nature 309 (1984), S. 644-645 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN 1970, Dr G.R. Fink offered the advice that "biochemists as well as geneticists should use only S288C or 'isogenic' Saccharomyces strains in their investigations. Regrettably, this has not been the rule in the past". True, the principal yeast of industrial importance is 5. cerevisiae. However, ...
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  • 112
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    Nature 309 (1984), S. 643-644 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] H.G. Wells: Aspects of a Life opens bizar-rely not with the birth of its subject but the birth of the biographer Anthony West, Wells's illegitimate son. At first startling, this emerges as rather appropriate, since, for most of the book, West's technique is to superimpose his own situation upon ...
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  • 113
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    Nature 309 (1984), S. 644-644 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE study of chemical processes in natural waters tends to be pursued in compartments oceans, lakes, rivers, ground-waters and so on. One reason for this lies in the large differences between such environments regarding the spatial and temporal frameworks within which geochemical processes can ...
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  • 114
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    Nature 309 (1984), S. 645-646 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN King Arthur's legendary domain, the Knights of the Round Table slew dragons and rescued fair maidens; only the pure of heart could hope to glimpse the Holy Grail. Heppenheimer likens the quest for controlled fusion to such an enterprise, but one pursued by more fallible human beings. In a ...
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  • 115
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    Nature 309 (1984), S. 646-646 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR Alister Hardy is prominent among those who have argued for "Darwinism with a difference". Whilst acknowledging the creative powers of natural selection, he enshrines innovative behaviour as a distinctive selective force. His argument is that a learnt and beneficial habit can be instrumental in ...
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  • 116
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    Nature 309 (1984), S. 647-647 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A FEW years from now, the heading on these pages will be entirely inappropriate. The idea that the use of computers in laboratories is sufficiently novel to be remarked upon will have ceased entirely to be noteworthy, just as it would now seem strange to assemble a few pages of this journal under ...
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  • 117
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    Nature 309 (1984), S. 648-648 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] GIVEN the shortage of suitable software for analysing biological data by microcomputer, the publication of books containing methods and programs for that purpose is generally all to the good. One recent book of this type is Statistics and Numerical Methods in BASIC for Biologists, written by J.D. ...
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  • 118
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    Nature 309 (1984), S. 648-649 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The Applications of Computers to Research on Nucleic Acids II, Parts 1 and 2. Edited by D. Söll and R. J. Roberts. IRL Press: 1984. Pp.856. Pbk 30, 60. Time Warps, String Edits and Macromolecules: The Theory and Practice of Sequence Comparison. Edited by D. Sankoff and J.B. Kruskal. ...
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  • 119
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    Nature 309 (1984), S. 649-649 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Biodata Handling with Microcomputers. By R.B. Barlow. Elsevier Biosoft, 68 Hills Road, Cambridge CB2ILA, UK: 1983. Pp.261. 18, 30. Disks 30, 50. EVEN the least expensive "home computers" are capable of carrying out all the statistical analysis that most biologists will require and usually before ...
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  • 120
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    Nature 309 (1984), S. 650-650 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PAPERBASE: A Computerized Personal Database for Scientists. By Anthony Durham. Wight Scientific, 44 Roan St, London SE109JT. Booklet, pp.31, 25, 50 (airmail postage included) for institutional use; 10, 20 f or personal use. Diskettes available for various computers, 50, 100 (booklet included). ...
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  • 121
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    Nature 308 (1984), S. 776-776 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - In the correspondence from Marcus Gosslerl we are informed that, in the event of the statistical evidence being sufficient, "the numerological result has to be taken seriously and cannot be dismissed by any non-mathematical reasoning". However, I think it also reasonable to point out (and I ...
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  • 122
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    Nature 309 (1984), S. 650-652 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Series 7000 professional computers from Perkin-Elmer are advanced microcomputer data processing systems specifically for laboratory applications. Two models are available: the PE 7500 and PE 7300, capable of both analytical and management functions. In an integrated workstation, a Series 7000 ...
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  • 123
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    Nature 309 (1984), S. 653-653 
    ISSN: 1476-4687
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    Notes: [Auszug] Physics Advances in Diagnostic Visual Optics: Springer Series in Optical Sciences. G.M. BREININ and I.M. SIEGEL (eds). Springer-Verlag: 1983. Pp.247. ISBN 3-540-13079-9/0-387-13079-9. DM67, 26. Application of Transition State Theory to Unimolecular Reactions: An Introduction. By J.H. BEYNON and ...
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  • 124
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    Nature 309 (1984), S. 481-482 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EUROPE may not be made in the few weeks ahead, but there is a danger that it could be broken. And certainly the month that lies ahead will be crucial for the whole enterprise. First come the European elections, only the second occasion on which representatives to the European Parliament have been ...
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  • 125
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    Nature 309 (1984), S. 654-654 
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    Notes: [Auszug] BIOTECHNOLOGY is one of the fast growing new technologies. It was born as late as the 1970s and is recognized everywhere as a key technology for the future. As well as the United States and Japan, the technology superpowers, France, West Germany, Switzerland and the United Kingdom have taken ...
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  • 126
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    Nature 309 (1984), S. 482-482 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] ON the face of things, there seems no prospect of an early improvement in relations between the Soviet Union and the West. Even the proposal that the president of the US National Academy of Sciences, Dr Frank Press, should go to Moscow to try out some unspecified plans for further collaboration has ...
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    Nature 309 (1984), S. 482-482 
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    Notes: [Auszug] WHILE nobody is conspicuously to blame that one of the best-known British laboratories in the neurosciences is to be closed (see p.486), the affair should give pause to those responsible for the management of research in countries such as Britiain, but in Britain in particular. And while the ...
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    Nature 309 (1984), S. 483-483 
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    Notes: [Auszug] TINY Luxembourg has thrown a spanner into the comfortable world of European telecommunications. In particular, Luxembourg has deeply offended the government of France by announcing that it plans to license a commercial consortium to launch communications satellites capable of delivering television ...
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    Nature 309 (1984), S. 484-484 
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    Notes: [Auszug] Jerusalem DR Yoram Dinstein, rector of Tel Aviv University, last week announced a new endowment fund to establish university posts for Jewish scientists emigrating from the Soviet Union. The timing was somewhat inauspicious. Israeli universities are so short of funds that six months ago it was ...
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    Nature 309 (1984), S. 484-484 
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    Notes: [Auszug] New York A LETTER from ten Moscow scientists published on Nature's correspondence pages in December 1981 (294, 688; 1981) may be cited as nominal defendant in a prosecution under Article 190/1 of the Russian Republic's criminal code, according to a recent Western visitor to Moscow. During the past ...
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    Nature 309 (1984), S. 483-483 
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    Notes: [Auszug] Washington Two weeks after a federal judge halted Dr Steven Lindow's planned field trial of recombinant ice-nucleating bacteria (see Nature 24 May, p.296), the Recombinant DNA Advisory Committee (RAC) of the US National Institutes of Health (NIH) approved a virtually identical proposal from ...
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    Nature 308 (1984), S. 826-828 
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    Notes: [Auszug] In the pulsar models proposed by Sturrock2 and by Ruderman and Sutherland5, cascade electron-pair production occurs due to the emission of curvature radiation. According to these models, outward-moving streams of particles tend to bunch, thus accounting for the coherent emission at radio ...
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    Nature 308 (1984), S. 836-837 
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    Notes: [Auszug] The experimental technique and apparatus, as described previously9,10, permit the accurate measurement of forces F(D) between two smooth curved mica surfaces (radius of curvature R = 1 cm) immersed in a liquid medium a closest distance D apart, in a convenient range D = 0-500 nm. The procedure in ...
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    Nature 309 (1984), S. 487-487 
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    Notes: [Auszug] Washington A YEAR of tireless campaigning by university leaders in the United States has failed to keep "pork barrel" politics out of the 1985 science budget. Georgetown University in Washington DC is asking Congress to direct the Department of Defense (DOD) to support a $220 million energy ...
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    Nature 309 (1984), S. 487-487 
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    Notes: [Auszug] Los Angeles CALIFRNIAN researchers won a major victory last week in their continuing battle with antivivisectionists. A proposed measure to prohibit the use of impounded stray animals in experiments was defeated by 9 votes to 4 in a state assembly committee after intensive lobbying by a coalition ...
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    Nature 309 (1984), S. 487-487 
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    Notes: [Auszug] A GROUP calling itself the Animal Liberation Front has broken into a laboratory at the University of Pennsylvania, vandalizing equipment worth thousands of dollars and stealing 20 videotapes of experiments on baboons. The laboratory, directed by Dr Thomas Gennarelli, has conducted experiments with ...
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    Nature 309 (1984), S. 486-486 
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    Notes: [Auszug] THE Kendrew committee set up to review British participation in Europe's high-energy particle physics has now asked members of the research community for their views. The group particularly wants opinions about the relevance and standing of the current UK effort, technical and educational spin-off ...
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    Nature 309 (1984), S. 488-488 
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    Notes: [Auszug] Brussels OFFICIALS of the European Commission fear that the Community's proposed biotechnology programme is falling foul of the present crisis in the Community's affairs. One sign of this is that the powerful agricultural lobby is mobilizing to block certain reforms that would have helped the ...
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    Nature 309 (1984), S. 488-488 
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    Notes: [Auszug] New York IMPORTANT changes in pay and conditions may be on the horizon for scientists employed in the United States' 700 federal laboratories, which include the National Insitutes of Health and laboratories run by the Departments of Energy, Defense and Agriculture. An interdepartmental committee ...
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    Nature 308 (1984), S. 679-679 
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    Notes: [Auszug] SOVIET Jewish scientists may have reason to hope that the regime of Mr Konstantin Chernenko will prove less harsh than that of his predecessor. Dr David Goldfarb has now been given permission to emigrate although previously he had been several times informed that, in his former work as a molecular ...
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    Nature 308 (1984), S. 681-681 
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    Notes: [Auszug] Washington MR Jeremy Rifkin, the United States' leading opponent of genetic engineering and the scourge of the biotechnology industry, was back in court last week seeking an injunction to prevent the University of California, Berkeley, from going ahead with its controversial frost-retarding ...
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    Nature 308 (1984), S. 681-681 
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    Notes: [Auszug] BRITISH universities are now in the thick of a search for 400 academics aged under 35 to join their staffs at the beginning of next academic year. This year's quota of what are called "new blood" appointments (350) is an increase of 40 per cent on the allocations first made this time last year, ...
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    Nature 308 (1984), S. 682-682 
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    Notes: [Auszug] BRITAIN'S Minister for Information Technology, Mr Kenneth Baker, announced last week the latest in his department's seemingly unending series of special schemes to promote applications of new technology. The department, together with the Manpower Services Commission, is to spend £2.5 million ...
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    Nature 308 (1984), S. 683-683 
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    Notes: [Auszug] SIR - Expert though he is in the art of praising with faint damns, it ill becomes Bernard Wood (Nature 306, 140; 1983) to protest at the creation of new words without checking his dictionary. Clearly, he does not play ...
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    Nature 309 (1984), S. 490-490 
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    Notes: [Auszug] SIR - When Homer sang of the "wine-dark" sea(seeMtfwre303, 568, 1983; 307, 590; 309, 204, 1984) what he had in mind must surely have been its darkness, rather than the colour, and "dark as wine" might be a better translation. After all, one can say that "her eyes sparkled like diamonds", without ...
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    Nature 309 (1984), S. 490-490 
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    Notes: [Auszug] SIR-It has become fashionable to describe negative attitudes to technological change by making an analogy to the Luddites. Terms such as "neo-Luddite" or even "latter-day Luddite" are appearing regularly. The most recent I have noted is in David Sills' review (Nature 10 May, p. 185). p. 185). The ...
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    Nature 309 (1984), S. 489-489 
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    Notes: [Auszug] Tokyo THE Antarctic Treaty Consultative Parties (ATCP) ended their secret deliberations in Tokyo on 31 May with the announcement that "good progress" had been made towards an agreement permitting the exploitation of Antarctic mineral resources. Representatives of nations that have no say in how ...
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    Nature 308 (1984), S. 693-698 
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    Notes: [Auszug] Protein kinase C has a crucial role in signal transduction for a variety of biologically active substances which activate cellular functions and proliferation. When cells are stimulated, protein kinase C is transiently activated by diacylglycerol which is produced in the membrane during the ...
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    Nature 308 (1984), S. 709-712 
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    Notes: [Auszug] Raup and Sepkoski1 have very recently presented evidence for an approximate cyclicity in marine mass extinctions over the past 250 Myr. Fourier analysis of their data showed a dominant periodicity of 30 Myr, a best-fit curve yielded a cycle of 26 Myr, and a non-parametric test (previously developed ...
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    Notes: [Auszug] Documenting source-transport-receptor relationships to pollution studies is an elusive, complex problem which contributes to most of the controversy over the origin of acid deposition in non-urban areas. While the combination of ground-based chemical measurements, meteorological trajectory analyses ...
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    Nature 309 (1984), S. 513-514 
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    Notes: [Auszug] UNIONIZED atoms are electrically neutral because the negative charges on the electrons precisely balance the positive charges on the nuclear protons. This concept of balancing is so deep-rooted in our scientific culture and so naturally presented in school classes that we hardly give it a second ...
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    Nature 309 (1984), S. 118-118 
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    Notes: [Auszug] SIR ? In a provocative column, you discussed the theory and practice of artificial intelligence1, using spelling correction as an example of a task in which automated computer procedures should be of great value. In the past ten years, a number of tools have been developed to solve similar problems ...
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    Nature 309 (1984), S. 518-518 
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    Notes: [Auszug] SIR -The report by Ludwin1 that the oligo-dendrocyte proliferates around an injury to mouse brain is of great relevance to previous studies on the neuroglia in mutli-ple sclerosis (MS). Some twenty years ago, we demonstrated proliferation (or at least increased numbers) of oligodendroglia at the ...
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    Nature 309 (1984), S. 518-518 
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    Notes: [Auszug] SIR -In a field as complex as carcinogenesis, it is difficult to distinguish between cause, correlation and consequence. No thoughtful biologist needs to be reminded of the many cancer theories propounded in this century. The current version is represented by the flood of papers on oncogenes and ...
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    Nature 309 (1984), S. 519-523 
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    Notes: [Auszug] Archaeomagnetic dating on the Minoan ash horizons of the Santorini volcano and on fired destruction levels at late Minoan sites on Crete demonstrates that the basal (Plinian) air-fall ash of the first ‘Minoan’ pumice is contemporaneous with the destruction levels on central Crete, while ...
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    Notes: [Auszug] Cells of the yeast, Saccharomyces cerevisiae, containing disruptions of either of two genes that are members of the ras oncogene family are viable, but haploid yeast spores carrying disruptions of both genes fail to ...
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    Nature 308 (1984), S. 576-576 
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    Notes: [Auszug] Washington PRESIDENT Reagan has decided against renewing talks with the Soviet Union on a treaty to ban weapons for destroying satellites in space. In a report to Congress last week, he said he could not foresee a new arms control treaty for space that would serve the interests of the United ...
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    Nature 308 (1984), S. 577-577 
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    Notes: [Auszug] TEN per cent of the world's flora - 25,000 of 250,000 taxa - are in danger of extinction, according to the World Wildlife Fund and the International Union for the Conservation of Nature and Natural Resources (IUCN). Under the chairmanship of the Duke of Edinburgh, the two organizations last month ...
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    Nature 308 (1984), S. 579-579 
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    Notes: [Auszug] THE Sun Alliance insurance group and Reed Stenhouse UK Ltd are planning to launch "Biotech Protection" - claimed to be the first insurance package geared specifically to the needs of biotechnology laboratories. The policy includes all-risks cover on assets and earnings against cross-infection of ...
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    Nature 308 (1984), S. 581-600 
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    Notes: [Auszug] INDIA, where zero was invented, often describes itself as the third nation in the world in science and technology. The claim is based on the output of graduates in science and technology from Indian universities, which is exceeded only in the United States and the Soviet Union. Naturally, the ...
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    Nature 308 (1984), S. 604-604 
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    Notes: [Auszug] THE atmospheres of the planets contain a cryptic record of the origin and evolution of our Solar System. The current composition of planetary atmospheres reflects the initial composition of proto-planetary material, the mode of planetary accretion, the release and reabsorption of volatiles by the ...
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    Nature 308 (1984), S. 605-605 
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    Notes: [Auszug] The mitotic apparatus of a cell in metaphase. Chromosomes, each divided into a pair of chromatids joined only at the centromere, sit in the centre of a spindle composed of microtubules. Some microtubules connect the kinetochores on the centromeres to a centrosome; others connect the two ...
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    Nature 308 (1984), S. 617-619 
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    Notes: [Auszug] The idea that we are looking down a relativistic jet can explain several properties that frequently occur among blazars. Very long baseline interferometry (VLBI) observations have shown motions apparently in excess of the speed of light9. Variability time scale upper limits to the size of their ...
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    Nature 308 (1984), S. 624-626 
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    Notes: [Auszug] The ocean is the greatest of the rapidly exchanging global carbon reservoirs and therefore effectively controls the atmospheric concentration of carbon dioxide over time scales of less than 105 years. Pco2 equilibrium partial pressure of CO2, of sea water is determined mainly by the temperature ...
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    Nature 308 (1984), S. 633-635 
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    Notes: [Auszug] The Son River originates at latitude 23 N in the sandstone uplands of central India and flows eastward along the foot of the Kaimur Hills before it leaves the hills and flows northeastward to the Ganges (Fig. 1). The Belan is a smaller river with its headwaters in the Kaimur Hills. It flows north ...
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    Notes: [Auszug] HTA 1 was purified from detergent lysates of bulk preparations of NH17 cells by affinity chromatography with ??1/34 (ref. 6). The three HTA 1 components were sequentially eluted from the ??1/34 affinity column at 40 C with a pH gradient in the order 2m (pH 8.5-9.5), ? (pH 9.5-10.7) and a (pH ...
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    Nature 309 (1984), S. 549-550 
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    Notes: [Auszug] The brown hare is a relatively solitary herbivore, feeding mainly at night7. The breeding season lasts from January to August, sometimes later, and each female may produce several litters per year8'9. Despite the length of the breeding season and the extensive overlap of male and female home ...
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    Nature 309 (1984), S. 552-556 
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    Notes: [Auszug] Using a capillary tube pulled to 40-75 ?? diameter, we inoculated the limb bud of day 4 chicken embryos (stage 22-24)9with 104-105focus-forming units of Prague-A (PRA) or Schmidt-Ruppin-D (SRD) RSV. Control embryos were inoculated with virus-free medium (medium 199 supplemented with 2% tryptose ...
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    Nature 309 (1984), S. 551-552 
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    Notes: [Auszug] At room temperature (20 C, 50% relative humidity) the silk produced by the major ampullate gland (dragline silk) of the spider Araneus diadematus is very stiff. If, however, an unrestrained segment is immersed in water it absorbs water and contracts to about 55% of its dry length9'10. This ...
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    Notes: [Auszug] Figure 1 shows an alignment of the inferred amino acid sequences of the entire CDC36 translational product (middle line) with homologous regions of the CDC4 and ets products. The locations of these sequences in their respective genes are shown in Fig. 2. The lengths of the CDC4, CDC36 and ets ...
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    Nature 309 (1984), S. 558-560 
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    Notes: [Auszug] Proteolytic activity specific to consecutive basic residues was monitored in lysates of yeast S. cerevisiae a-cells by measuring in a sensitive radioimmunoassay7 the amount of Tyr-Gly-Gly-Phe-Leu-Arg ([Leu]enkephalin-Arg) released from the synthetic C-terminally a-amidated peptide ...
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    Nature 309 (1984), S. 7-7 
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    Notes: [Auszug] CHINA'S space planners last month released details of the setbacks and disasters suffered during the nine-year effort to put into synchronous orbit an "experimental" communications satellite. The satellite was successfully launched on 8 April, and inserted into its final orbit at 125E on 16 April. ...
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    Nature 309 (1984), S. 8-8 
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    Notes: [Auszug] Rehovot A LEADING Israeli physicist recently gave an "Unofficial lecture" at a major Egyptian university. For political reasons, there was no advance notice of the lecture, organized by an Egyptian colleague whom the Israeli had met at a US conference. Word got around, however, and by the time the ...
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    Nature 309 (1984), S. 10-10 
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    Notes: [Auszug] SIR ? Your cheap sneer (Nature 15 March, p.24) that "many once adventurous laboratories have become places where ageing investigators brood on their pension rights" perhaps reflects the fact that your reporters are no longer visiting these laboratories. If they did, they would recognize the ...
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    Nature 309 (1984), S. 10-10 
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    Notes: [Auszug] SIR - M. A. Bray (Nature 307, 206; 1984) had expressed concern about the large number of abstracts appearing in databases. J. R. Metcalfe (Nature 308, 222; 1984) questioned whether conference abstracts should even be included in databases. For the nuclear physics bibliographic databases maintained ...
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    Notes: [Auszug] SIR Your reviewer (Nature 307, 765; 1984) suggests that some results may "titivate". It is hard to see how they could spruce up either themselves or your readers, although the results might well agreeably excite (titillate) at least the ...
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    Nature 309 (1984), S. 12-13 
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    Notes: [Auszug] THE publication of four papers1-4 in the 4 May issue of Science by R. C. Gallo and colleagues on a link between acquired immune deficiency syndrome (AIDS) and a retrovirus related to human T-cell leukaemia virus (HTLV) was preceded by much comment which has generated considerable confusion. The ...
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    Nature 308 (1984), S. 500-500 
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    Notes: [Auszug] SIR - Jon Darius (Nature 308, 18; 1984) says the recovery of the Lost City meteorite was the first time that photographs from synchronized cameras were used to predict the place of fall of a meteorite. It was not; the Pribram, Czechoslovakia, fall of 7 April 1959 was photographed as a bright ...
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    Nature 309 (1984), S. 17-18 
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    Notes: [Auszug] A LARGE consortium of European astronomers has recently published the third instalment of results of their ongoing programme monitoring the nearby Seyfert 1 galaxy NGC4151 with the International Ultraviolet Explorer satellite (IUE)1. Results have already been published from similar programmes ...
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    Nature 309 (1984), S. 568-568 
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    Notes: [Auszug] THIS is a thought-provoking book -the result of a brainstorming collaboration between a philosopher (Tennant) and a behavioural geneticist and evolutionist (von Schilcher). The authors are mainly concerned with the ramifications of adaptationist accounts of human nature. They succeed in ...
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    Nature 309 (1984), S. 568-568 
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    Notes: [Auszug] LEIBNIZ (1646-1716) was a multifaceted genius. He was archivist, diplomat, engineer, inventor, librarian, poet and politician. And his vast output of writing covered alchemy, anthropology, dynamics, economics, geology, history, jurisprudence, linguistics, logic, mathematics, numismatics, philosophy ...
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    Nature 308 (1984), S. 547-548 
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    Notes: [Auszug] The derivation of apo-cytochrome c specific murine T-cell clones has been described elsewhere5. Clone 2-16 is a Lyt-1+2- T-cell clone of BALB/c origin which is stimulated to proliferate by a variety of beef apo-cytochrome c peptides (but not haem-containing peptides), including one consisting of ...
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    Nature 308 (1984), S. 557-558 
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    Notes: [Auszug] Experiments were carried out on dried oriented purple membrane samples as previously described17. The membrane layers were fixed on glass plates covered by an electrically conducting and optically transparent SnO2 thin layer. The samples were mounted onto a 50-O coaxial connector. The outer ...
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    Nature 308 (1984), S. 560-560 
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    Notes: [Auszug] Nature 308, 280-282 (1984) ON page 281, the second and third paragraphs should read 'As shown in Fig. 1, the synergistic effect of 1 μM VIP and 10 µM NA was antagonized by the specific a-adrenergie antagonist phentolamine (100 µM) but not by (±) propranolol (100 µM), a ...
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    Nature 308 (1984), S. 563-564 
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    Notes: [Auszug] SOME research scientists have the gift of popularizing the results of research, some research administrators have a penchant for analysing science policy and scientific institutions, some philosophers enjoy telling the practising scientist how he contrives to discover scientific truths, and rare ...
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    Nature 308 (1984), S. 572-572 
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    Notes: [Auszug] SCIENCE has always been an international activity, with a regular interchange of staff and ideas between countries. In most subjects, however, such job mobility is restricted to a limited number of senior academics, together with a larger flow of post-docs seeking training places, chiefly in the ...
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    Nature 308 (1984), S. 389-389 
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    Notes: [Auszug] Boston THE city council of Cambridge, Massachusetts, is embroiled in another scrap with a local research institution. Three weeks ago, the city's health commissioner ordered Arthur D. Little Inc., a prominent consulting company, to cease research on toxic nerve gas and blister agents in its new ...
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    Nature 309 (1984), S. 89-89 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HALL et al1 propose that the Southern Uplands contain crystalline rocks of continental affinity at shallow depths (-1-5 km). We suggest that the same seismic data can, in fact, be used to strengthen the argument for a thick accretionary prism2. It has been inferred that prehnite-pumpellyite facis ...
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    Notes: [Auszug] HALL ET AL. REPLY?Oliver and McKerrow accept our conclusions that there are crystalline rocks at shallow depth in the Southern Uplands. Their suggestion that the rocks are greenschist facis metagreywackes, part of an accretionary wedge occupying nearly all the present crustal pile, represents an ...
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    Nature 309 (1984), S. 392-392 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Waalre, The Netherlands ONE of the first plants to be exploited by man in South-East Asia and Oceania could once again become a major commercial crop in the region if the efforts of Professor Michiel Flach of the Agricultural University at Wageningen bear fruit. The crop is the sago palm, natural ...
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    Nature 309 (1984), S. 393-393 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tokyo JAPAN'S Ministry of International Trade and Industry (MITI) has abandoned its controversial plans to make changes in the laws governing software copyright - changes which, in the US view, would have made "worldwide software piracy legal". But plans are going ahead rapidly to strengthen the ...
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    Nature 309 (1984), S. 393-393 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HUNGARIAN biology must come to terms with the challenge of computers, information technology and systems analysis, Dr Janos Szentagothai, president of the Hungarian Academy of Sciences, told the academy's general assembly last month. The theme of the meeting was the relationship between biology and ...
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    Nature 309 (1984), S. 394-394 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Jukes's commentary on his caricature of creation (Nature 308, 398-400; 1984) is a superb illustration of the unscientific approach of the anti-creationists, especially his conjuring up of "data" to support his polemic. Contrary to Jukes's demonstrably false claims, I have never sent graduate ...
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    Nature 308 (1984), S. 761-762 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] ALMOST exactly twenty-one years ago, the then British Government took its courage in its hands and declared that all "qualified" young people would in principle have access to a place in higher education. By accepting literally overnight what was called the Robbins principle (after the chairman of ...
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    Nature 308 (1984), S. 763-763 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Tokyo THE United States has protested to the Japanese Government over compromises reached in two new bills intended to reform Japan's telecommunications industry. The bills, which have just been submitted to the Diet, are aimed at replacing the Nippon Telegraph and Telephone (NTT) monopoly of ...
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    Nature 308 (1984), S. 764-764 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] SOVIET agriculture could face serious problems due to the salination of over-irrigated soils, Academician Anatolii P. Aleksandrov, president of the Soviet Academy of Sciences, warned recently at a high-level economic conference convened to review the progress of the "food programme" launched in May ...
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    Nature 308 (1984), S. 766-766 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MEDITERRANEAN beaches will remain polluted with heavy metals and untreated sewage at least for the time being, according to a decision taken by Mediterranean states last Friday, 13 April, in Athens, Greece. It was a black day for the United Nations Environment Programme (UNEP), whose nine-year ...
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    Nature 308 (1984), S. 767-767 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON the heels of last year's reorganization of postgraduate education in Hungary (Nature 306,216; 1983), the government is now turning its attention to the university system as a whole. Béla Köpeczi, Minister of Education and Culture, told the National Assembly (parliament) last week that Hungarian ...
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    Nature 308 (1984), S. 768-768 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Your leading article (Nature 8 March, p.97) makes some telling points on the finer nuances of international nuclear politics. I should like to comment on one of the issues you raise: that of the imminent danger of the collapse of the Non-Proliferation Treaty (NPT). There seem to be two ...
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    Nature 308 (1984), S. 768-768 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - It is difficult to see how any text book can be written without some kind of plagiarism since there can rarely be a scientist who can fill a book with the results ofhis own researches. Authors of larger text books are usually academics busy with lectures, research and administration and ...
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