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  • Articles  (26,852)
  • Elsevier  (23,635)
  • Nature Publishing Group  (3,217)
  • 1970-1974  (26,852)
  • 1950-1954
  • 1935-1939
  • 1972  (26,852)
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  • 1970-1974  (26,852)
  • 1950-1954
  • 1935-1939
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  • 1
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    [s.l.] : Nature Publishing Group
    Nature 240 (1972), S. 132-132 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE recent conference on creep organized by the Iron and Steel Institute and held in the University of Sheffield between September 20 and 22 was particularly successful in bringing together metallurgists working on the basic strengthening mechanisms of steels that are resistant to creep and those ...
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  • 2
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    Nature 240 (1972), S. 485-486 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Xanthium populations of America within a morphological complex show diverse photoperiodic adaptation4"9. Those of northern US and Canada have critical dark periods of 7.5-8.5 h for reproduction4 and those of southern US and Mexico have critical dark periods extending to 10.5-11 h5~7. Populations of ...
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  • 3
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    Nature 240 (1972), S. 489-489 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Three subjects who were non-smokers were adapted to twice distilled water with once distilled water used as a stimulus and to once distilled water with a tapwater stimulus. A constant flow (330±1 ml. min"1) gravity system delivered adapting and stimulus solutions, at mouth temperature (34 ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 240 (1972), S. 490-490 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Terms such as rock grazing, browsing, rasping, burrowing and boring are used to describe plants or animals that erode rocks, but no single term is applied to all rock-destroying organisms. Such a term should include reference to both "rock" as distinct from "sediment", and to "destruction" or ...
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  • 5
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    Nature 240 (1972), S. 490-491 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A total of 70 requests were received for paper 1 and 133 for paper 2 (writers asking for more than one reprint were classified as single requests). Despite the similarity of content between the two papers, only three individuals requested both; so that we received communications on the two papers ...
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  • 6
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    [s.l.] : Nature Publishing Group
    Nature 240 (1972), S. 491-491 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] By heating eggs for definite periods of time at various temperatures between 95 C and 65 C we have been able to estimate the relevant activation energies for denaturation of the yolk and albumin. These are ~11 kcal mol"1 and ~24 kcal mol"1 respectively. The method involves comparing the fluidities ...
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  • 7
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    [s.l.] : Nature Publishing Group
    Nature 240 (1972), S. 493-493 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS book is more nearly a collection of about twenty independent short stories, all of them interesting and lively, none requiring sustained attention. Thus it can be fitted into a pleasant evening in and out of your favourite chair at home. Ward relates in historical and biographical format the ...
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  • 8
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    Nature 240 (1972), S. 491-492 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have investigated the detection of increased concentrations of 14C in artists' materials to identify works of art produced since the advent of atmospheric nuclear weapons testing. The use of conventional 14C dating to determine the age of paintings is prevented by the short timescale involved ...
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  • 9
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    Nature 240 (1972), S. 493-493 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN thirteen short essays one of the world's leading astrophysicists conveys his thoughts upon many facets of his science and its creators. The individual pieces are dedicated to diverse scientific occasions during the past two decades; there is no connexion between them save the involvement of the ...
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  • 10
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    Nature 240 (1972), S. 493-494 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE object of this book, says the author in his introduction, is to eschew the Great Man interpretation of English agrarian history, typified by Lord Ernie in his praise of the traditional agricultural heroes, Townshend, Bakewell, and Coke, in favour of a social analysis of agricultural progress. ...
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  • 11
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    Nature 240 (1972), S. 161-162 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Outline formula for substrate preparation based on chlorinated N,N-diacetylbenzidine. In the first place N,N-diacetyl-3,5,3',5'-tetrachlorobenzidine (Fig. 1; Ar,7=NHAc, Z=H) is deacetylated to the mono-acetyl compound (Fig. 1; ^T=NHAc, y=NH2, Z=H) in the conditions used for chlorination. ...
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  • 12
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    Nature 240 (1972), S. 164-166 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the first of his points of disagreement Hazeltine states that if the overall relationships between DDE and shell thinning mean anything, "... each colony should show a similar trend in itself. . . . None of the separate colonies shows a clear trend in itself". This criticism is erroneous. In the ...
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  • 13
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    Nature 240 (1972), S. 155-157 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Relationship of serum and CSF folate in controls. Serum and CSF folate were assayed by the aseptic technique of Herbert7 in three groups of patients. (1) Twenty-three controls, mean age 44 yr, range 29-68; undergoing myelography for back or root pain. (2) Fourteen psychiatric patients, ...
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  • 14
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    Nature 240 (1972), S. 496-496 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the bibliography to the review of the UFO Experience (Nature, 239, 529; 1972), the publisher was given as Henry Regnery: Chicago. The book is also published by Abelard-Schuman: ...
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  • 15
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    Nature 240 (1972), S. 157-159 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Recently we were able to study a liver biopsy sample from an atypical PKU patient and two from classical PKU patients. With an assay in which all the known components were added in excess7 and which could have detected 1 % of the normal hydroxylase activity, we have found, in confirmation of our ...
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  • 16
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    Nature 240 (1972), S. 162-163 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Blus et al. draw their conclusions from statistical analysis of egg residues and eggshells collected over two years from three populations and two subspecies of brown pelicans and combine these to form one bivariate population. The authors assume, therefore, that no environmental, behavioural, ...
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  • 17
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    Nature 240 (1972), S. 163-163 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Switzer, Wolfe and Lewin have chosen to ignore obvious evidence in their criticism of our study1 of the thinning of eggshells of captive American kestrels given a low dietary level of DDE and of data relating to it. They first question the validity of our experimental results by trying to show that ...
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  • 18
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    Nature 240 (1972), S. 65-66 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOR more than 40 years, Soviet glacio-logists have maintained a permanent observation station on the Fedchenko Glacier in the High Pamirs. Press coverage (Izvestiya, September 27, 1972) of the servicing of this station by helicopter reflects increasing concern as to how this large glaciated area ...
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  • 19
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    Nature 240 (1972), S. 66-66 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LIKE a canvas and scaffolding environmental disaster, the British Environmental Exhibition is now squatting in Trafalgar Square. The triangular geodesically patterned dome, which first saw the light of day at Stockholm, is a curved maze of photographs, slides and exhibits displaying with some pride ...
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  • 20
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    Nature 240 (1972), S. 68-68 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SENATOR KENNEDY'S amendment to the Defense Appropriations Bill, which is designed to force the Department of Defense to draw up fresh guidelines for research involving human subjects (see Nature, 239, 363 ; 1972), has survived scrutiny by a conference committee, been cleared by Congress and will ...
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  • 21
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    Nature 240 (1972), S. 65-65 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A CALL for universities to run more postexperience courses in engineering was made by Sir Brian Flowers, chairman of the Science Research Council, when he delivered the 1972 Maitland Lecture to the Institution of Structural Engineers yesterday. Sir Brian also extolled the virtues of the SRC's ...
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  • 22
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    Nature 240 (1972), S. 66-66 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE government should drop its involvement in civil high technology, according to Professor John Jewkes, Professor Emeritus in Economics at the University of Oxford. Delivering the Harold Win-cott Lecture last week, Professor Jewkes lambasted the government's involvement in high technology which, ...
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  • 23
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    Nature 240 (1972), S. 67-68 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Now that the dust has settled after President Nixon's second veto of the appropriations bill for the Departments of Labor and of Health, Education and Welfare, some officials at the National Institutes of Health are predicting that the veto will not greatly harm their activities, provided they get ...
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  • 24
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    Nature 240 (1972), S. 75-76 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE experiment of Gamota and Bar-matz (Phys. Rev. Lett., 22, 874 ; 1969) did not, as had been supposed, measure the impulse of a beam of quantized vortex rings, according to a recent paper by Muggins (Phys. Rev. Lett., 29, 1067 ; 1972). At the temperature of 0.3 K at which the experiment was ...
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  • 25
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    Nature 240 (1972), S. 70-71 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the more remarkable features of the basalts returned from the Sea of Tranquillity in July 1969 was their depletion in sodium, potassium and rubidium relative to otherwise comparable basalt on Earth. Factors of order 10"1 are involved and the depletion has proved to be a general feature of ...
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  • 26
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    Nature 240 (1972), S. 370-371 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the most immediate consequences of the announcement, last July, of the British Government's plans for the reorganization of civil research was that the House of Commons Select Committee on Science and Technology lapsed into an injured sulk. And it is true that it would have been courteous, ...
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  • 27
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    Nature 240 (1972), S. 369-370 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Government's white paper on education policy (Education: A Framework far Expansion, HMSO, £0.315) may well make up by its scope for the difficulties that have been created in British universities by the procrastination over several months about an announcement of plans for the ...
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  • 28
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    Nature 240 (1972), S. 372-373 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A LARGE expansion in school education and a reduction in the growth rate of higher education are the key points of the ten-year plan announced last week by Mrs Margaret Thatcher, Secretary of State for Education and Science (Education: A Framework for Expansion, HMSO, £0.315p). A new nursery ...
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  • 29
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    Nature 240 (1972), S. 71-72 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN working with the class of agents which cause scrapie, transmissible mink encephalopathy, kuru and Creutzfeld-Jacob disease there have been two recurrent problems. These are the difficulty of distinguishing primary from secondary events in the disease and the need to use whole-animal assays, ...
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  • 30
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    Nature 240 (1972), S. 372-372 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE left-hand illustration is a reproduction of page 453 from the issue of Nature dated June 23, 1972. That on the right is a reproduction of the corresponding page from the photocopied version of Nature distributed (without agreement with the publishers) from Moscow to Russian scientists. The ...
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    Nature 240 (1972), S. 107-108 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The sex pheromone of the female cockroach Periplaneta americana (L)2 elicits a series of distinctive reactions from the male. Increasing concentrations of pheromone evoke responses corresponding to increasing degrees of sexual motivation3. This behaviour has been the basis of an assay which reveals ...
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    Nature 240 (1972), S. 110-110 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DON'T worry: Arthur Koestler has not taken to porn-he breaks fresh ground. The Call-Girls is a novel, aptly introduced by his publishers with: "Off they go, the distinguished members of the academic call-girl circuit, to yet another cultural congress, scientific conference, inter - disciplinary ...
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    Nature 240 (1972), S. 374-374 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THERE is a general air of gloom and uncertainty pervading the federal departments and agencies in Washington which have dealings with science and technology, and the mood is unlikely to lighten much in the next few months. The most immediate cause for concern is the likelihood that in the next week ...
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    Nature 240 (1972), S. 80-84 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] Aeromagnetic profiles show two types of smooth magnetic zone in the South Atlantic symmetrically positioned about the Mid-Atlantic Ridge. The first borders the continental margins off Argentina and the Union of South Africa and the second extends over part of the Argentine-Brazil and Angola-Cape ...
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    Nature 240 (1972), S. 375-375 
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    Notes: [Auszug] DURING the Congressional close season, Senator Edward M. Kennedy and his staff have been quietly moving behind the scenes mapping out a path for the Office of Technology Assessment-Congress's new think tank and crystal ball on technological matters. If Kennedy gets his way, and he probably will ...
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    Nature 240 (1972), S. 97-100 
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    Notes: [Auszug] For deciphering global palaeoclimates a reconstruction must be used which positions continents with respect to the poles of the Earth's rotation, because of the strong latitude-dependence of climate. The mean palaeomagnetic pole probably approximated the position of the Earth's rotational pole ...
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    Nature 240 (1972), S. 102-104 
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    Notes: [Auszug] The method I have used for measuring mRNA stability is based on the kinetics of approach to steady state labelling of polyribosomal RNA adsorbed to 'Millipore' filters in conditions specific for binding of poly A2. The equation used is A/A* = /-e~ln(1) where A is the specific activity of a ...
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    Nature 240 (1972), S. 109-109 
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    Notes: [Auszug] THIS book is not a work of science and a notice of it in Nature can only be justified for the interest it may have for some environmentalists. The title is based on an emotive phrase from a speech by President Kruger after the discovery of gold on the Witwatersrand: "Every ounce of gold taken from ...
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    Nature 240 (1972), S. 110-110 
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    Notes: [Auszug] THE philosophy of science, as an academic discipline, is deeply divided among its practitioners into a number of schools, each of which accentuates its differences from and minimizes its similarities to the rest. The frequent confrontations between these schools have become a ritual. In spite of a ...
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    Nature 240 (1972), S. 115-115 
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    Notes: [Auszug] IN the article "Oceanic Fine Structure" by H. Charnock (Nature, 239, 32; 1972), the illustration labelled Fig. la should be Fig. \b and vice ...
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    Nature 240 (1972), S. 1-1 
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    Notes: [Auszug] The Editor of Nature has so far received two names of those who dissent from the accepted theory of evolution (see Nature, 239, 420; 1972). They are as follows: Dr Garret Vanderkooi, Assistant Professor of the Institute for Enzyme Research at the University of Wisconsin and Dr Harold Van Kley, ...
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    Nature 240 (1972), S. 380-380 
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    Notes: [Auszug] ANYBODY interested in the biochemistry of DNA replication should find next Wednesday's issue of Nature New Biology (December 20) particularly interesting reading; it contains three reports-two from Bonhoeffer's group and one by Lark-which shed new light on the mechanism of chain initiation and ...
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    Nature 240 (1972), S. 381-382 
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    Notes: [Auszug] THE notion of native and denatured conformations, comparable in terms of base pairing, but differing widely in biological activity, occupies a prominent position in the transfer RNA canon. An adroit attempt to sink a pick in its foundations has nevertheless been made by Biltonen and his colleagues. ...
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    Nature 240 (1972), S. 381-381 
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    Notes: [Auszug] THE synthetic polyribonucleotide poly I:C is an effective interferon inducer in vivo and in vitro. In investigations to determine what criteria of molecular structure are necessary for interferon induction, it has an advantage over natural RNAs in that the structure of its strands may be altered ...
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    Nature 240 (1972), S. 382-383 
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    Notes: [Auszug] THE very difficult and subtle problem of quantizing the gravitational field was the subject of a conference sponsored by the Physics Department of Boston University and held in Boston from October 31 to November 3. The difficulties which arise include not only the usual technical ones inherent in ...
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    Nature 240 (1972), S. 382-382 
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    Notes: [Auszug] THE problem of calculating the nuclea-tion rate for condensing water vapour in the flow through a nozzle has attracted attention for at least half a century. In the 1940s, the rapid growth of interest in supersonic aerodynamics and the widespread development of supersonic tunnels led to a renewed ...
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    Nature 240 (1972), S. 13-14 
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    Notes: [Auszug] LAST week, I discussed progress in showing that episome replication in Escherichia colt is under the same sort of control as that of the bacterial chromosome. Several other articles in the September issue of the Proceedings of the National Academy of Sciences also illustrate the concern of ...
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    Nature 240 (1972), S. 8-8 
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    Notes: [Auszug] FOR the second time this year, President Nixon has vetoed the appropriations bill for the Departments of Labor and Health, Education and Welfare. This means that the National Institutes of Health must be content, at least until February next year, with the same level of funding that they received ...
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    Nature 240 (1972), S. 25-27 
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    Notes: [Auszug] The problem of relating the quantum mechanical description of atomic processes to the behaviour of matter in bulk is resolved in a conceptually simple ...
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    Nature 240 (1972), S. 30-32 
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    Notes: [Auszug] Fig. 1 Focusing of south going bow waves. The wave fronts (continuous) are drawn at 1 h intervals of T, and the wave normals at 0.5 h intervals of /. The value of CL is taken to be 10.3 h-1. When a value of 7.8 h-1 is adopted the focus at C shifts to C". Fig. 2 Focusing of north going bow waves ...
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    Nature 240 (1972), S. 56-56 
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    Notes: [Auszug] ACCORDING to the preface, the book "is intended to guide the reader through introductory quantum mechanics and molecular orbital theory, the free electron method and the calculation of ultraviolet spectra, symmetry, group theory and its applications, the structure, bonding, and ultraviolet spectra ...
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    Notes: [Auszug] A CRITIC'S task is to criticize, and the book is rare indeed that attracts no adverse comment. David Knight's Natural Science Books in English 1600-1900 is no exception, but let it be said at once that it deserves a general welcome as a knowledgeable and authoritative work that brings together a ...
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    Nature 240 (1972), S. 395-398 
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    Notes: [Auszug] Sequences from seven pancreatic RNAases show a highly variable structure. The evolution of apparently functionless parts of a protein is thought to be based upon requirements for the polypeptide folding ...
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    Nature 240 (1972), S. 56-56 
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    Notes: [Auszug] IN L. T. C. Rolfs Landscape with Machines we have an absorbing account of how this author grew up into his profession as an engineer and left it to become the popular writer on engineering history that he now is. Brought up in the Cotswolds and appreciative of the expertise that the country ...
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    Notes: [Auszug] As the author indicates, this is an area of growing importance, in which it is difficult to keep abreast of all research findings. The first chapter is of interest mainly to the general reader wishing to inform himself about the basic psycho-tropic drugs which may affect driving performance. The ...
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    Nature 240 (1972), S. 58-58 
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    Notes: [Auszug] THE first of these books is designed as an introductory text suitable for undergraduates and, presumably, anyone using the gas liquid chromatographic technique for the first time. The choice of material is defined by this aim and so the volume contains little that would be new even five years ago. ...
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    Nature 240 (1972), S. 59-59 
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    Notes: [Auszug] SIR,- There was a Professor called Dingle Who made physicists' nerve endings tingle. His travelling clocks Caused grave mental blocks In those who thought time should stay single. Yours faithfully, JOHN ...
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    Nature 240 (1972), S. 59-60 
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    Notes: [Auszug] PROFESSOR NORMAN DAVIDSON, Gardiner Professor of Biochemistry in the University of Glasgow since 1948, died on September 11 at the age of 61. Dux of George Watson's College in Edinburgh, he won a scholarship in medicine to the University of Edinburgh where he took a BSc with 1st Class Honours in ...
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    Nature 240 (1972), S. 403-404 
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    Notes: [Auszug] Fig. 1 Residual Bouguer anomalies over the region between Lake Victoria and the Gregory Rift. The north-south trending dashed line represents the boundary between the Tanganyika Shield to the west and the Mozambique Orogenic Belt to the east. The usefulness of photogeological techniques to "draw ...
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    Nature 240 (1972), S. 406-408 
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    Notes: [Auszug] During one eruption of a gaseous-mud volcano the amount of mud breccia thrown out can reach millions of cubic metres whereas the total amount of breccia given off by a single mud volcano is sometimes as high as (1 to 5) x 109 m3 (the Solokhai, Airantekyan, Tashmardan, Ajiveli and other volcanoes). ...
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    Notes: [Auszug] THIS book was almost inevitable, although it is nonetheless welcome for that. The last decade has .witnessed a spate of scholarly books and articles about the Daltonian atomic theory, its origins, the difficulties it encountered and its implications for the history of chemistry in general. No ...
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    Notes: [Auszug] THIS book was published in Moscow in 1969, and the present translation appeared in 1971. It deals with a branch of enumerative algebra which was important in the early decades of this century, then came under a decline, and now, in recent decades, has achieved increasing importance with the ...
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    Notes: [Auszug] PETER SYKES has produced a good companion to his widely-acclaimed Guidebook. In his Search for Organic Reaction Pathways he explains the experimental approaches currently applied to the exploration of a reaction pathway and begins, logically, with an uncomplicated view of the interpretation of ...
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    Nature 240 (1972), S. 410-411 
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    Notes: [Auszug] Prostaglandins are themselves pyrogenic13 and occur in the central nervous system14. Feldberg et al.15 found that a prostaglandin-like substance appeared in the cerebrospinal fluid (CSF) at the same time as the fever produced by intravenous injections of pyrogen. Paracetamol produced a prompt ...
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    Nature 239 (1972), S. 509-511 
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    Notes: [Auszug] The night-time laser radar system (Table 1) is unsuitable for measurements during the day because the daytime sky would produce a photon count rate of up to 2 GHz. That is far in excess of the maximum synchronous count rate of the photo-multiplier system, 30 MHz, and the ratio of the signal counts ...
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    Nature 240 (1972), S. 412-414 
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    Notes: [Auszug] Fig. 1 Postulated hairpin loop structure of tandemly repeated genes. Damage to the unpaired regions (indicated by solid arrows) could not be repaired accurately owing to the improper positioning of the complementary bases. The complementary base is required for accurate base insertion by DNA repair ...
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    Nature 239 (1972), S. 419-420 
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    Notes: [Auszug] FOR the best part of a century, the United States has been more concerned about the future supply of raw materials for industry than most other industrial countries. Anxiety of this kind at the turn of the century laid the foundations for the United States Administration's present intermittent ...
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    Nature 239 (1972), S. 421-421 
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    Notes: [Auszug] THE Zuckerman Commission on Mining and the Environment has come under increasingly heavy attack from conservation bodies during the past week. In a letter to The Times, the heads of the National Trust, the Commons, Open Spaces and Footpaths Preservation Society, the Council for the Protection of ...
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    Nature 239 (1972), S. 420-420 
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    Notes: [Auszug] THE British Association Meeting at Brighton has already begun to bear fruit in that town. A desire has been aroused among several of the inhabitants to know more of Natural Science, and a course of science lectures in the Dome, chiefly to working men, has been projected. But the ladies have taken ...
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    Nature 239 (1972), S. 424-424 
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    Notes: [Auszug] AN ad hoc committee of the National Research Council has added its voice to the call for tighter government controls over the way raw materials are used in the United States. The committee, which met under the chairmanship of Dr Preston Cloud of the University of California, believes that unless a ...
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    Nature 239 (1972), S. 427-427 
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    Notes: [Auszug] THE detection of transition radiation, which is emitted when a fast charged particle crosses the boundary between two dielectric media, is a difficult but increasingly promising technique for distinguishing relativistic charged particles. The problem of telling particles - say pions and ...
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    Nature 239 (1972), S. 430-430 
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    Notes: [Auszug] IN five consecutive papers occupying eighty-odd pages of the current issue of the Journal of Molecular Biology Cham-berlin and his colleagues report an analysis of the binding of Escherichia coli DNA-dependent RNA polymerase to phage T7 DNA which matches in its thoroughness the analysis Kornberg's ...
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    Nature 239 (1972), S. 432-433 
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    Notes: [Auszug] ABOUT 150 physicists and metallurgists, more than half of them from overseas, gathered at the University of Sussex from September 18 to 20 to discuss point defects and their aggregates in metals. An erudite gathering, one might think, far removed from the cares of the real world; but behind this ...
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    Nature 239 (1972), S. 525-525 
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    Notes: [Auszug] The accepted definition of the lift coefficient and wing area, given by Etkin3 and others4, is Cl=Cl(wing)+ where Cowing) refers to the wing plus body combination only, and Awing includes the body strip but excludes the tail area, by definition. CL(taii) may be either positive or negative, ...
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    Nature 239 (1972), S. 529-530 
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    Notes: [Auszug] THIS is primarily a translation from the German translation by R. Greeff (1894) of Cajal's La Retine des Vertebres (La Cellule, 9, fasc. 1; 1892). The translators incorporate also material from Cajal's final published version (Cajal, S. R. Lab. Invest. BioL, Madrid, 28; 1933). With the advent of ...
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    Nature 239 (1972), S. 448-449 
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    Notes: [Auszug] Fig. 1 a, Section showing continental plate advancing over an oceanic plate stationary on the mantle. The marginal trench is advancing and the shelf deposits are intruded and disturbed by volcanism arising from the Benioff zone (dashed line). b, Sketch plan of a indicating that orogeny can only ...
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    Nature 239 (1972), S. 452-453 
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    Notes: [Auszug] Although brain tryptophan is presumably derived from plasma, the brain and plasma concentrations of this amino-acid are not significantly correlated. Plasma tryptophan concentration is unaltered when brain tryptophan increases upon food deprivation or immobilization4'5. However, only a small ...
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    Nature 240 (1972), S. 425-426 
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    Notes: [Auszug] THE physics of the vibrations of crystalline solids is well developed for many simple materials. Most materials of interest to chemists, however, are powders with complex composition and structure. The interpretation of the vibrational spectra of such materials is aided by an understanding of the ...
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    Notes: [Auszug] THIS volume of collected papers on various aspects of primatology provides further evidence of the tremendous importance of the Burg Wartenstein Symposia of the Wenner-Gren Foundation. These regular meetings of selected groups of specialists provide an excellent basis for the discussion and ...
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    Notes: [Auszug] THE explosive rate of growth of research activity in many fields during the past twenty years has raised increasingly acute problems of dissemination of information. Even when the results of the research are published in the standard journals the sheer volume of publication makes it increasingly ...
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    Notes: [Auszug] SIR,-Rothschild's Table 2 (Nature, 239, 373 ; 1972) may well represent the point of convergence of a protracted dispute, and certainly those who are engaged on long-range research, and yet do not object to its acquiring an ultimate application, will welcome his adoption of the term "strategic" for ...
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    Notes: [Auszug] SIR,-Rothschild correctly points to the importance of the question, "What is the object of the classification?" but fails to recognize that different people and organizations have different needs of a classification, so that the same classification may not suit them all. Moreover, by defining ...
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    Notes: [Auszug] PHOTOELECTRON Spectroscopy is a technique for studying the binding energies of electrons in the various orbitals or shells of molecules by measuring the energies they acquire when ejected by a photon of known frequency (EB=/zj〉 - imv2). The subject is conveniently divided into ultraviolet and X-ray ...
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    Notes: [Auszug] SIR,-I am sure many of your readers are shocked and offended by your persistent efforts to heap ridicule on the Club of Rome and Professor Meadows. One cannot help but be reminded of the hysterical outbursts which greeted Malthus and Darwin. Certainly the utter limits of ridicule were reached in ...
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    Nature 239 (1972), S. 443-446 
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    Notes: [Auszug] Observations made at Green Bank confirm the findings of Gregory et ...
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    Notes: [Auszug] Fig, 1 Design for a model swivel wing aircraft made from paper. The paper is about 0.1 mm thick and fins are bent up for the cross winged subsonic condition as shown (--------). For the diagonal winged supersonic condition, new fins are bent at 45 to the span (-o-o-) and the match stick nose weight ...
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    Nature 239 (1972), S. 361-361 
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    Notes: [Auszug] LONDON may eventually be warned of impending floods by means of an early warning station off the coast of Scotland. The Institute of Coastal Oceanography and Tides has identified a site between 20 and 40 miles east of Aberdeen as the best location for trials of a prototype data buoy which will ...
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    Nature 239 (1972), S. 363-363 
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    Notes: [Auszug] PLANS now being devised in Washington for bringing science and technology to bear on problems such as pollution control, health care and urban renewal have an important factor in common-they deal with issues traditionally the concern of state and local governments. But there are increasing ...
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    Nature 239 (1972), S. 364-364 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Widespread PCBs A study conducted by the US Geological survey has found polychlorinated biphenyls in "an unexpectedly large number of sampling points in streams, lakes and reservoirs". Detectable levels of the chemical were found in 17 out of 39 states, including remote areas. In May this year, ...
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    Nature 239 (1972), S. 367-367 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE the discovery of QSOs, observational astronomers have had the problem of picking these blue, star-like objects out of sky survey plates which include many genuine blue stars. One of the most useful aids in resolving this difficulty has been the rule of thumb that QSOs usually show a ...
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    Nature 239 (1972), S. 359-359 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT the last meeting of the Council of the Pharmaceutical Society, it was resolved unanimously that the resolution passed in 1862, prohibiting ladies from attending the lectures, be rescinded, and that ladies be admitted as students to the lecture classes of the Society. At present but one lady has ...
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    [s.l.] : Nature Publishing Group
    Nature 239 (1972), S. 393-393 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The material analysed, which included associated sea salt, was taken from the top portions of various NAY ADO1 cores, and Cd was determined on a dithizone extract of a digest of the sample using an atomic absorption carbon rod atomization technique. Sampling locations and the Cd contents of the ...
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    Nature 239 (1972), S. 395-397 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have recently isolated an enzyme from a strain of Pseudo-monas stutzeri, carboxypeptidase GI (CPD GI), which hydro-lyses the C-terminal glutamyl groups from peptide linkage such as found in folic acid7. This enzyme has antitumour activity against rodent leukaemias as the result of its ability to ...
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    Nature 239 (1972), S. 370-371 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CONCANAVALIN is a name that nowadays elicits Pavlovian salivation in cell biologists and others. It is also a protein, one of the so-called lectins, which derive from plants and possess the property of agglutinating erythrocytes and other cells. They do this by binding to saccharide residues on the ...
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    Nature 240 (1972), S. 315-315 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LESS attention should be given to transplant surgery and treatments for rare forms of cancer, and more to the problems of the elderly and the chronic sick, mental subnormality and in particular dentistry, according to Dr Henry Miller, vice-chancellor of the University of Newcastle upon Tyne, who ...
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    [s.l.] : Nature Publishing Group
    Nature 239 (1972), S. 390-392 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Burtle Beds are confined to the valleys of the Rivers Brue, Parrett and Tone. Although the Kenn gravels6 and the "marine Pleistocene" deposits in the Vale of Gordano7 have been tentatively correlated with the Burtle Beds, this correlation has not been confirmed. Hawkins and Kellaway8 conclude ...
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    Nature 239 (1972), S. 395-395 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It can be shown2 that more than 90% of the energy in an air shower caused by a primary in this energy range appears in the form of superimposed electromagnetic showers from photons produced in rc decay. Further, recent Monte Carlo studies at this laboratory by R. L. Ford, using a program originally ...
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    Nature 239 (1972), S. 406-407 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A group of six doucs, kept in a large outdoor cage at the San Diego Zoo, were observed for 200 h during June, July and August 1971. One hundred of those hours were devoted to the quantitative scoring of behaviour. (A complete report of this work, including an ethogram of the animals, is in ...
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    [s.l.] : Nature Publishing Group
    Nature 239 (1972), S. 408-408 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Kammerer's other work he confuses adaptation at the individual level with evolutionary adaptation. For example, the European salamander changes its colour in response to background. The change is hormone-induced3 and the salamanders are viviparous, so it is not surprising that at birth young ...
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    Nature 239 (1972), S. 414-414 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is unfortunate for the modern botanist that the present boom in antiquarian book prices is offset by ambitious reprint programmes from certain publishers. Hafner's Classica Botanica Americana series provides a good example of a systematic approach to the provision of durable reprints of rare, ...
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