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  • Articles  (3,651)
  • Nature Publishing Group  (3,651)
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  • 1985-1989  (3,651)
  • 1950-1954
  • 1986  (3,651)
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  • 2020-2022
  • 1985-1989  (3,651)
  • 1950-1954
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  • 1
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 601-602 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE is nothing quite like the nuclear industry for fossilizing the technology of the past. A nuclear installation, once commissioned, becomes radioactive and thus inaccessible by people, with the result that radical improvements of performance are virtually impossible. This simple truth lies at ...
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  • 2
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 602-602 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IF the Iranian arms scandal blows over soon, some attention may be given in Washington to the emergent slogan of competitiveness, the means by which the US government and its advisers are seeking to accelerate the changing pattern of trade between the United States and the rest of the world. The ...
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  • 3
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 602-602 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BEFORE readers of this and other periodicals lapse into the torpor of what seems increasingly to be an international holiday, with elevator muzak playing Christmas carols even in Japan, 1986 should not be mistaken for an entirely disappointing year. True, many of the disappointments have been cruel ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 603-603 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE management of Britain's only nuclear reprocessing plant, at Sellafield in Cumbria, has been given a year to improve the safety of the site or face closure. The stern warning has been issued by the Health and Safety Executive (HSE), the licensing authority for the site, after an audit which it ...
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    Nature 324 (1986), S. 603-603 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] POLAND'S official report on the Chernobyl disaster, published in a limited edition a few weeks ago, makes no mention of the consistent under-reporting of radioactive iodine contamination during the first few weeks after the accident. Nor has the International Atomic Energy Agency (IAEA) or the ...
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  • 6
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 604-604 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DESPITE arguing until 4 a.m. on Wednesday last week, Europe's science ministers have failed to agree on a budget for the European Commission's 'framework' programme of research and development, a programme that aims to lay the basis for European cooperation in key areas of research and technology ...
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  • 7
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 604-604 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] STILL wriggling uncomfortably on the hook of human embryo research, the UK government last week issued a consultation paper on Legislation on Human Infertility Services and Embryo Research (Cm 46, HMSO, 2.90), asking for responses by the middle of 1987. The aim is then to introduce legislation, ...
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  • 8
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    Nature 324 (1986), S. 605-605 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE British Medical Research Council (MRC) faces a deficit of 13.2 million by the end of the decade even if it does no more than maintain the existing rate of awards and renew long-term grants at an appropriate level. But there is also a pressing need to spend more on research into AIDS (acquired ...
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  • 9
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    Nature 324 (1986), S. 606-606 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington THE US authorities are not doing enough to catch and prosecute unscrupulous food growers who may be steadily poisoning the American public through illicit use of pesticides. A study by the General Accounting Office (GAO) concludes that the US Food and Drug Administration (FDA) is the ...
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  • 10
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    Nature 324 (1986), S. 606-606 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BRITISH manufacturing industry, part of which enjoys lucrative defence contracts, must itself spend more on research and development, says Mr John Fairclough, the government's chief scientific adviser. Annual government investment in research and development is 4,300 million, of which 51 per cent ...
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    Nature 324 (1986), S. 605-605 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tokyo JAPAN'S Volcanic Prediction Liaison Council seems to have been rewarded for its failure to forecast the behaviour of Mount Mihara on Oshima, the volcanic island south of Tokyo evacuated during a major eruption last month. The council has won substantial .new facilities on the island that ...
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  • 12
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 607-607 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington THE principal US military plutonium production reactor, a graphite-moderated plant similar to that at Chernobyl, is to be shut down for six months by the Department of Energy (DoE) to carry out urgent safety modifications which could cost about 50 million. The 23-year-old 'N' reactor ...
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  • 13
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    Nature 324 (1986), S. 607-607 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RAMIZ Alia, who became leader of the Albania Workers' Party (AWP) on the death last year of Enver Hoxha, has an unusual approach to his country's non-renewable natural resources. "The interests of future generations", he told the AWP congress last month, demand that such assets as copper and ...
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  • 14
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    Nature 324 (1986), S. 608-608 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE UK Science and Engineering Research Council (SERC) has at last taken delivery of its Cray X-MP/48 supercomputer, after much discussion between the British Department of Trade and Industry and the US Department of Commerce. For months, the latter has been concerned that "foreign aliens' might ...
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  • 15
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    Nature 324 (1986), S. 608-608 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] New Delhi AFTER protracted negotiations, India and the United States have signed a document paving the way for the sale of a Cray-XMP supercomputer to India. The deal was approved in principle by the US administration eight months ago but became bogged down because of disagreements over the US ...
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  • 16
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 608-608 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sydney THE initial reaction of the Australian scientific community to the appointment of former New South Wales Premier and federal president of the Australian Labour Party (ALP), Mr Neville Wran, as head of Australia's largest research body, the Commonwealth Scientific and Industrial Research ...
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  • 17
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 609-609 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington OUTRAGE and calls for investigations have followed in the wake of revelations about field trials of a recombinant rabies vaccine conducted by the Pan American Health Organization (PAHO) (see Nature 324, 202; 1986). Both the National Institutes of Health (NIH) and a congressional ...
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  • 18
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    Nature 324 (1986), S. 610-610 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Argentinian scientists have recently been disturbed by an experiment involving both humans and domestic animals infected with a live recombinant vaccine. [An account of the experiment appeared in Nature (324, 202; 1986) after this letter was written.] The experiment was carried out in an ...
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  • 19
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    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 609-609 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Rehovot A MAJOR reconstruction of the higher education system in Israel that would create a two-tier structure, halt the growth in the number of students at existing institutions and raise tuition fees has been proposed by Professor Jacob Ziv, head of the Grants and Allocation Committee of the ...
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  • 20
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    Nature 324 (1986), S. 610-610 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-At the time I was approached, I objected to the Cornell survey of National Academy members (Nature 324, 4; 1986) as to the feasibility and desirability of the Strategic Defense Initiative (SDI) even though I agree that no defensive system would be able, within the next 25 years, to provide ...
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  • 21
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    Nature 324 (1986), S. 610-610 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Britain took 96 years to get full suffrage, in four stages, the last only 58 years ago. During that time, poverty (far greater than that in South Africa today) virtually disappeared, owing to the gradual increase in wealth brought about by entrepreneurs. South Africa needs more trade and ...
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  • 22
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    Nature 324 (1986), S. 611-611 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR Fred Hoyle may hold the view that the AIDS (acquired immune deficiency syndrome) virus is of extraterrestrial origin, others may like to believe that it escaped from a germ-warfare laboratory (surely a better plot would involve an unscrupulous biotechnology company that made and released the ...
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    Nature 324 (1986), S. 612-612 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AIR pollution arising from the emission of nitrogen oxides, NO,, from combustion taking place in boilers, furnaces and engines, has increasingly been recognized as a problem (see, for example, Fourth Report from the Environment Committee, Acid Rain, HMSO, 1985). NO, has been implicated as a ...
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    Nature 324 (1986), S. 612-612 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] JANE Few and Barry Madore, in a survey published in a recent issue of the Monthly Notices of the Royal Astronomical Society (222, 673-682; 1986), identify two sub-types of ring galaxies. On the left is a P-type ring galaxy showing the crisp, knotty structure of the ring itself, the displaced ...
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    Nature 324 (1986), S. 613-613 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AN entirely novel concept entered our knowledge of how receptors send signals through membranes to the cell interior when it was realized that the receptor-activated hydrolysis of phosphatidylino-sitol 4,5-bisphosphate yields two second messengers rather than one. Inositol 1,4,5-trisphosphate ...
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  • 26
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    Nature 324 (1986), S. 613-615 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PHYSICISTS have long held the notion that measurements on a macroscopic sample are the same as the average over an ensemble of similarly prepared samples. In the past two or three years, this notion has been challenged by a combination of two factors: the ability to prepare small samples using ...
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    Nature 324 (1986), S. 617-618 
    ISSN: 1476-4687
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    Notes: [Auszug] GRAVITATIONAL lensing should in principle provide a fundamentally new technique for exploring the distribution of mass in the Universe, for determining cosmolo-gical parameters and for determining the properties of background sources. For example, model fitting can determine the mass distributions ...
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    Nature 324 (1986), S. 615-617 
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    Notes: [Auszug] UNDERSTANDING how patterns of gene transcription are controlled during the development of eukaryotic organisms and in terminally differentiated cells is an important goal of molecular biology. This control appears to be achieved through the interaction of trans-acting proteins with ds-acting DNA ...
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    Nature 324 (1986), S. 618-619 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SERENDIPITY gave us the homoeobox1, a highly conserved DNA sequence of about 180 base pairs, first found in several Drosophila genes that control segmentation. Homoeoboxes were also detected in other segmented invertebrates and in several vertebrates including mammals, giving rise to the view2 that ...
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    Nature 324 (1986), S. 620-620 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE tendency of many plant mitochond-rial genomes to undergo extensive rearrangements provides a satisfying framework for understanding the phenomenon of cytoplasmic male sterility (CMS), a maternally inherited defect common to many higher plants that impairs the development of pollen. Some ...
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    Nature 324 (1986), S. 621-621 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Although Williams, Caplow and Mclntosh1 correctly emphasize the important contribution of Horio and Hotani2 in verifying, by real-time experiments, the concept of the dynamic instability of micro-tubules, some of their points are off the mark and they have missed an opportunity to evaluate the ...
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    Nature 324 (1986), S. 622-622 
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    Notes: [Auszug] SIR-Doran et al. (Nature 323, 803; 1986) have shown reasonable histological preservation of 8,000-year-old brain tissue from a bog site, yet they have not given an explanation for why the tissue preservation should be so good. We suggest that it is due to tannic acid and related compounds contained ...
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    Nature 324 (1986), S. 622-622 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] SIR-Edwards' is correct that Islam and Lindgren2 have failed to recognize that their distribution function is a likelihood function. But he is incorrect in asserting that their conclusions are unwarranted and in assuming that physicists do not know how to work with small samples. In fact Islam and ...
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    Nature 324 (1986), S. 622-622 
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    Notes: [Auszug] SIR-The small grid-like mystery object of Wolstenholme et al.l may be a fragment of 'tubular myelin', which is the contracted or non-spread form of lipoproteinaceous pulmonary surfactant. Fetal surfactant has been identified in human amnibtic fluid2, and the tubular myelin form is commonly ...
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    Nature 324 (1986), S. 622-622 
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    Notes: [Auszug] SIR-Wolstenholme et al have probably observed a well-preserved area of a mesh-work of the nuclear lamina lining the nuc-leoplasmic surface of the inner nuclear membrane which supports the interphase chromatin. It is unusual to observe any remnant of lamina in a metaphase preparation, but two ...
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    Nature 324 (1986), S. 622-622 
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    Notes: [Auszug] SIR-In view of the highly critical review of our book Archaeopteryx, The Primordial Bird: A Case of Fossil Forgery (Nature 324, 185; 1986) I would like to bring to your notice recent developments that would seem to have vindicated our views. The issue hinges on whether or not the material on which ...
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    Nature 324 (1986), S. 623-624 
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    Notes: [Auszug] IT is a truism, forever fixed in our childhood minds by the story of Pandora's box, that knowledge can be used for good or ill and that the problem for human societies is to maximize the former and minimize the latter. In the eighteenth century this problem was sufficiently evident to Dr Johnson, ...
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    Nature 324 (1986), S. 624-624 
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    Notes: [Auszug] THERE are those, most notably Leon Chertok, who argue that the therapeutic element in psychoanalysis, in so far as there is one, is suggestibility, and that psychoanalysis, through its intermediary the transference, has not disengaged from hypnosis but has merely changed the terminology. Freud ...
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    Nature 324 (1986), S. 624-625 
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    Notes: [Auszug] ROENTGEN'S discovery of X rays in 1895 led directly to the discovery of radioactivity by Henri Becquerel. Unlike X rays, radioactivity did not excite scientists or the public; no lead-lined knickers were sold to protect prudent women from its scrutiny. Then, in 1898, Marie and Pierre Curie ...
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    Nature 324 (1986), S. 625-625 
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    Notes: [Auszug] OVER the past decade, the quantitative application of the concept that the properties of living organisms represent optimal solutions to specific design problems has been a growth industry. Richard Sibly and Peter Calow have been prominent exponents of this approach, and the aim of this book is to ...
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    Nature 324 (1986), S. 626-626 
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    Notes: [Auszug] SIXTY years ago, devotees of the non-fiction book at bedtime were well supplied by a genre which is now rare: the essay. Contemporaries of Chesterton, Belloc and Aldous Huxley had plenty of entertainment awaiting them at the end of the day. Today there are very few competent practitioners in that ...
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    Nature 324 (1986), S. 626-626 
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    Notes: [Auszug] ROLF Sattler is a biologist who believes that it is important to understand the fundamental presuppositions of biology and how they influence research and even our view of life itself. In Biophilosophy he sets out to introduce other biologists to these ideas. I am in full sympathy with Sattler's ...
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    Nature 324 (1986), S. 627-628 
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    Notes: [Auszug] A fortieth anniversary reminiscence IN September 1941, when I started as an undergraduate at Columbia University, the genetics of bacteria was still a no-man's-land between the disciplines of genetics and (medical) bacteriology. The question whether "bacteria have genes, like all other organisms" ...
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    Nature 324 (1986), S. 628-628 
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    Notes: [Auszug] 1. We have learned12 that E. coli strain K-12 itself was a remarkably lucky choice of experimental material: only about one in twenty randomly chosen strains of E. coli would have given positive results in experiments designed according to our protocols. In particular, strain B, which has become ...
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    Nature 324 (1986), S. 629-631 
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    Notes: [Auszug] NEW scientific discoveries do not always flow directly from those made just before. Rather, several varieties of discontinuity can be identified in the growth of science. Premature discoveries are those that scientists do not attend to in a timely way, and are retrospectively described as having ...
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    Nature 324 (1986), S. 632-635 
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    Notes: [Auszug] Measurements of helium isotopes in the ground waters and natural gases of sedimentary basins reveal that some possess a major component of mantle-derived helium, apparently related to their mechanism of formation. Neogene basins formed by loading do not involve introduction of significant mantle ...
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    Notes: [Auszug] Hormone binding and localization of the c-erb-A protein suggest that it is a receptor for thyroid hormone, a nuclear protein that binds to DNA and activates transcription. In contrast, the product of the viral oncogene v-erb-A is defective in binding the hormone but is still located in the ...
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    Nature 324 (1986), S. 646-649 
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    Notes: [Auszug] During an extended photometric study of comet Halley during the 1985-86 apparition, two lengthy observing runs were scheduled on the 0.61-m Lowell-Tololo telescope at Cerro Tololo Inter-American Observatory (CTIO) in March and April of 1986. The March run (4-18 March) was timed to span the ...
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    Nature 324 (1986), S. 641-646 
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    Notes: [Auszug] The cDNA sequence of human c-erb-A, the cellular counterpart of the viral oncogene v-erb-A, indicates that the protein encoded by the gene is related to the steroid hormone receptors. Binding studies with the protein show it to be a receptor for thyroid ...
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    Nature 324 (1986), S. 649-651 
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    Notes: [Auszug] During comet Halley's post-perihelion phase, we carried out observations with the 24-inch planetary patrol telescope at Perth Observatory, using a CCD (charge-coupled device) camera system which is one of two developed jointly with S. M. Larson (the system will be described elsewhere). The present ...
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    Nature 324 (1986), S. 651-655 
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    Notes: [Auszug] Fig. 1 Size distributions of H"l"(H2O)n cluster ions (upper abscissa and left ordinate) for an altitude of 17 km, an H2O-vapour volume mixing ratio of 3 x 106 and temperatures of 180,190, 200, 210 and 220 K (thermodynamical data of Lau et a/.17). Also shown is the fraction F of H+(H2O)n ions (lower ...
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    Nature 324 (1986), S. 655-657 
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    Notes: [Auszug] Due to industrial and academic interest in stiff chain and semiflexible polymer molecules, there have been an increasing number of structural and rheological studies of liquid crystalline polymers in recent years. A banded texture is often noted in flow-oriented LCP specimens. Donald et al4 have ...
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    Nature 324 (1986), S. 658-660 
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    Notes: [Auszug] Details of the crystallization sequence in the finger structures reported at Rhum have led to the realization that the mafic layers are pene-contemporaneous sills whose presence has caused melt-corrosion of the overlying rock4. Details are clarified in ref. 4, but the features central to the ...
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    Nature 324 (1986), S. 657-658 
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    Notes: [Auszug] Nitrogen oxide formation in combustion has received much attention3"7. The recognition4 that ammonia can be used to reduce nitric oxide in exhaust gases led to major efforts to characterize reactions important in the Thermal DeNOx process. The mechanisms and models that resulted have greatly ...
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    Nature 324 (1986), S. 660-661 
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    Notes: [Auszug] The formaldehyde oxime solutions were prepared by mixing solid hydroxylamine hydrochloride with an equimolar amount of a 38 wt% aqueous solution of formaldehyde. The reaction is immediate, yielding a concentrated solution of formaldehyde oxime, which is then diluted and brought to the desired pH by ...
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    Notes: [Auszug] To examine expression of the Mo-10 gene (also known as Hox-l, ref. 9), the 660-bp Hindlll-EcoRl fragment containing the homoeobox was subcloned into pSP65 and used to produce high specific activity radioactive RNA probes complementary to Mo-10 messenger RNA (Fig. 1). Two separate probes were made. ...
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    Notes: [Auszug] The nucleotide sequence of clone HHO.clS is shown in Fig. la. Multiple stop codons are present in each frame up to nucleotide 230. Translation of the longest reading frame from the ATG codon at base 250 would produce a peptide sequence of 255 amino-acid residues, containing a homoeo domain ...
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    Nature 324 (1986), S. 668-670 
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    Notes: [Auszug] Gap mutant embryos lack a number of adjacent segments which define the domains of the wild-type gene requirement. Based on the deletion pattern (Fig. 1), zygotic hunchback (hb) activity is required for normal establishment of gnathal and thoracic segments (up to T3), Kruppel (Kr) for thoracic and ...
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    Notes: [Auszug] The autosomal recessive mutations Ipr and gld are non-allelic genes, yet the abnormal cells that populate the lymph nodes of mice homozygous for either mutation are indistinguishable by a wide variety of criteria. We have suggested that the mutations may affect different components of a common ...
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    Notes: [Auszug] The Torpedo and bovine AChRs were expressed in Xenopus laevis oocytes by microinjection of the respective a-9 ft-, y- and 6-subunit-specific messenger RNAs synthesized by transcription in vitro of the cloned cDNAs (refs 2, 4, 6). Figure la compares the sizes of acetylcholine(ACh)-activated ...
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    Nature 324 (1986), S. 676-679 
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    Notes: [Auszug] Table 1 lists six amino-acid sequences for DR ft genes from three different DR2 subtypes (DR2-Dw2, DR2-Dwl2 and DR2-MN2)17. (For simplicity only amino acids that differ between any two sequences are given; see ref. 18 for a complete listing of shared amino-acid residues.) The six sequences can be ...
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    Notes: [Auszug] The junctional nucleotide sequences for the Va and Vp genes are given in Figs 1 and 2, respectively, and data for all the T cells examined are summarized in Table 1. These data, with functional studies to be discussed subsequently, demonstrate several interesting points. The Vall.l gene segment is ...
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    Notes: [Auszug] Fig. 1 Restriction map and cloning of the Mov-15 locus. A, Isolation of mouse DNA sequences flanking the Mov-15 provirus. A recombinant plasmid, pMov-15/1, containing sequences flanking the provirus, was hybridized to DNAs from homozygous Mov-15 males (lane a), heterozygous Mov-15 males (lane b) ...
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    Notes: [Auszug] The GREs of the rat TAT gene are located unusually far upstream, at -2.5 kilobases (kb), from the transcriptional start site (Fig. 1). These elements were initially indicated by the appearance of a DNasel-hypersensitive site following hormone treatment16 and then identified by gene transfer ...
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    Nature 324 (1986), S. 688-691 
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    Notes: [Auszug] To determine whether the steroid ligand is required for specific binding of the receptor to DNA it is important to use receptor that has been subjected to as few manipulations as possible, because the steps required for receptor purification could induce artificial conformational changes of the ...
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    Notes: [Auszug] A series of filter hybridizations of the HIV-2 RNA genome with probes derived from the complete cloned HIV-1 genome, as well as from regions expected to be well-conserved between HIV-1 and 2 (principally from the gag and pol genes) yielded extremely weak signals, even in conditions of very low ...
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    Nature 324 (1986), S. 695-697 
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    Notes: [Auszug] Comparison of primary structures of enzymes of the same function but different origins is useful to determine the essential regions for activity, because active and/or substrate-binding sites are highly conserved in the homologous regions9. Amino acid sequences of four neutral proteases from B. ...
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    Nature 324 (1986), S. 698-699 
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    Notes: [Auszug] EXAFS provides information concerning the number and type of atoms and their bond distances from a metal atom in a metalloprotein5'6. The limitations of the technique include (1) atoms of similar atomic weight (for example oxygen and nitrogen) cannot be distinguished from one another7, (2) outer ...
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    Notes: [Auszug] To make use of site-directed mutagenesis to examine the structure and catalytic mechanism of lactate dehydrogenase (LDH) we have isolated and sequenced the gene from Bacillus stearothermophilus and have obtained high levels of expression (about 30% of the soluble protein) of the enzyme in ...
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    Nature 324 (1986), S. 702-702 
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    Notes: [Auszug] Nature 321, 431-434 (1986). THREE sequencing errors have been found in the human T3-e nucleotide sequence published in Fig. 3b. These errors have been corrected in the sequence shown below at the positions indicated by vertical arrows. The putative transmembrane region is underlined. The predicted ...
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    Notes: [Auszug] Nature 319, 220-223 (1986). PANEL c in Fig. 3 of this letter was incorrectly drawn. With the ordinate scale corrected the figure ...
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    Nature 324 (1986), S. 504-504 
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    Notes: [Auszug] Rehovot AN extremely inventive patent covering biologically-engineered "human pink-spider toxinase" was recently presented for examination by Wiezmann Institute's Professor Hermona Soreq and Professor Avigdor Shaefferman of Israel's Biological Research Institute. But the toxinase and the cultured ...
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    Nature 324 (1986), S. 505-505 
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    Notes: [Auszug] New Delhi THE question of compensation for victims of the Bhopal disaster still remains unresolved on the second anniversary of the leak of methyl isocyanate (MIC). The legal wrangle has taken a new turn with the Union Carbide Corporation (UCC) alleging that it did not own the plant and therefore ...
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    Notes: [Auszug] Washington DISAGREEMENT continues over arrangements for European participation in the planned US Space Station. European officials are pressing the United States for assurances on operating procedures and cost-sharing, asking that these be specified in a formal intergovernmental agreement. The ...
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    Nature 324 (1986), S. 506-506 
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    Notes: [Auszug] Washington HYBRITECH Inc., a subsidiary of Eli Lilly, is suing yet another company for using monoclonal antibody assays in its diagnostic kits. Hybritech has now decided to sue Abbott Laboratories on the grounds that some of Abbott's diagnostic tests may violate its patent for 'sandwich assays'. ...
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    Nature 324 (1986), S. 506-506 
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    Notes: [Auszug] Washington "DISTRUST and dislike" between AIDS (acquired immune deficiency syndrome) researchers is the probable explanation for incidents of tampering at the federal Centers for Disease Control (CDC) AIDS programme laboratory in Atlanta, Georgia, according to a special independent assessment by ...
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    Nature 324 (1986), S. 506-506 
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    Notes: [Auszug] Brussels COMPETITION in the potentially lucrative market for vaccines against hepatitis-B virus is hotting up. Following close on the plans of a Korean company to produce a dollar-a-shot plasma-derived vaccine (Nature 324, 399, 1986), SmithKline Biologi-cals last week received official approval ...
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    Notes: [Auszug] Tokyo JUST at the time IBM (International Business Machines) drastically scaled down its research and development of Josephson junctions, Professor Eichi Goto of Tokyo University plunged into investigation of the supercooled logic devices, an idea originally developed by him more than 30 years ...
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    Notes: [Auszug] LAST week the James Clerk Maxwell Telescope, in the final stages of its initial commissioning tests, received its first radio signals from space. The 20-million instrument, installed at Mauna Kea Observatory on Hawaii, is the largest telescope in the world operating in the submillimetre region of ...
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    Notes: [Auszug] Bangalore INDIA has been trying for many years without success to evolve a comprehensive national water policy, but this goal is now a step nearer. The chief need is for efficient and integrated management of water resources and more effective use of irrigation facilities. Mr B. Shankarananda, ...
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    Nature 324 (1986), S. 508-508 
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    Notes: [Auszug] SIR-Your article on research in Italy (Nature, 323, 751; 1986) depicts the Italian government as working quickly at reorganizing the national research institutions. As a researcher with 18 years' experience and an employee of the National Research Council (CNR) which, with its 6,189 employees, is ...
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    Notes: [Auszug] SIR-Whether or not he was summarizing the views expressed in Crosby's Ecological Imperialism, The Biological Expansion of Europe, 900-1900, Roy Porter (Nature 323, 587; 1986) shows extreme ignorance when he suggests that the Maori people of Aotearoa (New Zealand) "were stuck in the time-warp of the ...
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    Notes: [Auszug] SIR-I have been following with interest the recent correspondence in your pages on evolution, creation science and neo-darwinsim. The letter from T.D. lies1, pointing out the regrettable habit of neo-darwinians of making exclusive claims on the interpretation and exposition of evolutionary ...
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    Nature 324 (1986), S. 509-509 
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    Notes: [Auszug] RESEARCHERS should learn from journalists the dangers of words such as "first". Those who describe some event as the first of its kind are almost certain to be assailed by readers saying that it is nothing of the kind. But to play safe by using qualifiers as in "the first recorded demonstration..." ...
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    Nature 324 (1986), S. 510-510 
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    Notes: [Auszug] THE scope of materials that display interesting electrical, magnetic and structural properties at very low temperatures has now been extended by Underhill and co-workers, who on page 547 of this issue1 describe the first two-dimensional organo-metallic compound that exists in an integral oxidation ...
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    Notes: [Auszug] THE question of how cells estimate their location within the body has preoccupied embryologists for the past century, but when posed by Stumpf1 almost exactly 20 years ago, it seemed to have the beginnings of an answer. The concept of gradients, first explicitly propounded by T.H. Morgan, was ...
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    Nature 324 (1986), S. 513-513 
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    Notes: [Auszug] THE LAW OF STORMS IN THE EASTERN SEAS PRINCIPAL typhoons 1884-1885. Nearly all the typhoons appear to have their origin east or south-east of the high-pressure area that covers the northern Pacific in the summer season, which part of the ocean is characterised by high sea-surface temperature. ...
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    Notes: [Auszug] A NEW initiative in international cooperation among the nuclear fusion research community, which may lead to a world engineering test reactor, was announced at a recent meeting (see below). But the dominant scientific feature of the conference was the experimental results from four large tokamak ...
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    Nature 324 (1986), S. 514-515 
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    Notes: [Auszug] ONE of the first things that an extraterrestrial might ask about the planet Earth is how many species are on it. If this extraterrestrial had only our own current knowledge to rely on, the answer would be astonishingly vague: somewhere between 1.5 and 30 million species of plants and animals. At ...
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    Nature 324 (1986), S. 515-516 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE connection between the rheological behaviour of the mineral halite (NaCl) in the presence of very small quantities of free water and radioactive waste disposal may at first seem obscure. There is a strong link, however, some aspects of which are described by Urai et al.1 on page 554 of this ...
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    Nature 324 (1986), S. 517-517 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-In 1935, members of the International High Altitude Expedition went to the Aucanquilcha sulphur mine in north Chile (2112'S, 6828'W) to study their own physiological adaptations to extreme altitude, and also to make some measurements on the local residents1. They described a group of miners who ...
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    Nature 324 (1986), S. 516-516 
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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 major problems with molecular clocks is that they need to be located in an absolute time frame determined by the fossil record. Undoubtedly the best such clock available at the moment is the DNA-DNA hybridization clock of Sibley and Ahlquist1, but Peter Houde on page 563 of this issue2 ...
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    Nature 324 (1986), S. 517-517 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Ford has suggested that leaf fall is the mechanism of excretion in vascular plants1. But to view the senescing leaf simply as an 'excretophore' may be to limit our vision. Some species may avoid accumulating high concentrations of heavy metals by removing them in senescent leaves2. The dead ...
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    Nature 324 (1986), S. 517-517 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-When I wrote my paper on undirectional spin1, which was recently referred to in Nature2, I unhappily had not seen a paper3 on this topic which preceded mine by a few years. This highly illuminating work, which overlaps mine hardly at all, is particularly to be recommended to your readers for ...
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    Nature 324 (1986), S. 518-518 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Angel et al.1 while advocating the use of a 16 m diameter telescope optimized for infrared observations to search for Earth-like planets outside the Solar System, criticize my suggestion2 of using an interferometric system, operating at optical wavelengths, for the same purpose. Their criticism ...
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    Nature 324 (1986), S. 518-518 
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    Notes: [Auszug] ANGEL et al. reply-Burke has defined a mirror surface by equation (1) with / = 1 cm, showing that a relatively large r.m.s. error can be combined with very low sidelobes at 1/4 arc second radius. But this bears little relationship to the best optical surfaces currently made. In practice, errors are ...
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    Nature 324 (1986), S. 519-520 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE are many histories of mathematics. Statistics, a younger science, has been comparatively neglected. But now we have the happy conjunction of not one, but two fascinating books that describe the origins and early development of what is arguably the mathematical tool of this century. Both are ...
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    Nature 324 (1986), S. 520-520 
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    Notes: [Auszug] "HAFVILLA" is a term used in the Norse sagas to denote getting totally lost at sea. In the scientific sense, The Nordic Seas might well provide us with a safeguard against such a fate. The editor has collected together lengthy contributions from leading authorities in their respective fields, and ...
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    Nature 324 (1986), S. 521-521 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WILLIAM Trager has been a dedicated student of animal parasitism throughout his 50 years on the staff of the Rockefeller Institute in New York. During most of that time the subject was a relatively neglected one. The simpler prokaryote parasites and their host interactions are more amenable to ...
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    Nature 324 (1986), S. 521-521 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE might assume from the title that this is just another book on dinosaurs; after all, there are already so many on the market that thinking up a new title must always be a problem. But the exact wording hints strongly at the distinctive nature of this excellent volume. For it is not a descriptive ...
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