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  • Nature Publishing Group  (3,839)
  • American Institute of Physics (AIP)
  • 1995-1999
  • 1975-1979  (3,839)
  • 1975  (3,839)
Collection
Publisher
Years
  • 1995-1999
  • 1975-1979  (3,839)
Year
  • 1
    Electronic Resource
    Electronic Resource
    New era of firmer control in French science (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 653-653 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SUPPORT for science marks time. Universities live on budgets which in some countries, the UK included, have recently shrunk in real terms. Government interest in science is, at best, lukewarm. Students decide in large numbers that a career in science is not for them. Everywhere the scientist finds ...
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  • 2
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    Optical detection of Fe 3+ in lunar plagioclase (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 694-695 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Luminescence spectra of lunar plagioclases measured at room temperature do not show an easily discernible Fe3+ band; the presence of such ions in lunar plagioclase is, therefore, generally much less evident than in terrestrial samples of the same mineral. (The same is true of plagioclases of other ...
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  • 3
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    Evidence for pre-Jurassic subduction in western Antarctica (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 701-702 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The geological history of the South Shetland Islands (which includes the Elephant and Clarence Islands group) is dominated by continuing volcanism from the (?) Jurassic to the present2. A structurally deformed sedimentary sequence of presumed Upper Palaeozoic age crops out on Livingston Island3'4. ...
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  • 4
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    Intelligence tests may favour the majority groups in a population (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 708-709 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have previously suggested that the existence of genetic environmental interactions1 could affect item selection in the construction of intelligence tests using interaction in its precise technical sense in the analysis of variance. Most other available data disagree2, but are correlational ...
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  • 5
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    Effect of light on egg-laying rate and mating speed in phototactic strains of Drosophila (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 712-714 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two components of fitness-rate of egg deposition and mating speed-were measured in an unselected population and in a photopositive and photonegative population of D. melanogaster. The investigation was carried out under two sets of environmental conditions: continuous darkness and continuous light. ...
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  • 6
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    Hermatypic coral growth banding as environmental recorder (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 706-708 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We chose Bermuda as a study area for a variety of reasons. Previous work5 had revealed annual banding in the skeletons of the genus Diploria, correlations among individual coral heads, and low growth rates which allowed a large number of years to be recorded within a small coral. Geographically, ...
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  • 7
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    QSO redshifts and the steady state cosmology (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 660-660 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] JOHN GRIBBIN (Nature, 257, 540; 1975) has ably summarised the work by one of us (P.K.D.) which appeared recently (Man. Not. R. astr. Soc., 172, 623; 1975) on the subject of the relationship between angular diameters and redshifts in Hoyle-Fowler type models of QSOs. Gribbin's ability as a ...
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  • 8
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    Organisation of receptors for neurotransmitters on Aplysia neurones (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 751-754 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Neurones were penetrated with double-barrelled glass microelectrodes as previously described4'8'9. One barrel was used to record membrane potential and the other to pass d.c. or current pulses for measurement of membrane resistance. Drugs were iontophoresed using a five-barrelled extracellular ...
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  • 9
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    Arrhenius parameters of phototransients in Halobacterium halobium in physiological conditions (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 766-768 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The principal difficulty in spectroscopic studies of cell suspensions is the intense scattering that obtains in this system. This is particularly acute in flash photometry since long light paths are used generally to monitor the absorption of transients. We have overcome this difficulty in two ...
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  • 10
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    The nucleolus on the Black Sea (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 662-663 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Fourth Nucleolar Workshop was held at Varna, Bulgaria, on September 14–19, sponsored by the European Cell Biology Organization and the Bulgarian Academy of Sciences. Further information can be obtained from the organiser, Professor A. A. Hadjiolov, Institute of Biochemistry, Sofia. A ...
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  • 11
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    Disruption of brain stimulation-induced feeding by dopamine receptor blockade (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 750-751 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Amphetamine increases the release and prevents re-uptake of both noradrenaline (NA) and dopamine (DA) and could therefore induce stereotypy by its action on any of the brain CA systems8"10. DA seems, however, to play a critical role in amphetamine stereotypy as this drug-induced behaviour is ...
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  • 12
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    Selection of quasars by variability (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 586-587 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Variability has long been known to be an important characteristic of quasars7. Its use as a major selection criterion is, however, jeopardised not only by contamination from other variable objects, but also by uncertainties about the nature of the subgroup of quasars which are selected. There are ...
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  • 13
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    Arctic palaeosalinities during late Cainozoic time (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 591-595 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Our data suggest that normal and low salinity cycles were superimposed on temperature fluctuations. The lowest temperatures prevailed during the cold pulses of the Brunhes normal polarity and late Matuyama reversed polarity epochs and, somewhat higher temperatures and lower salinities a little more ...
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  • 14
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    Fluorescent product accumulation in ripening fruit (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 599-600 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fluorescent products were extracted from the peel and pulp tissue of ripening banana (Musa cavendishii, var. Valery) and pear (Pyrus communis, var. Bartlett) by the procedure described by Fletcher et a/.15. Lipofuscin isolates were water-washed and irradiated with ultraviolet light to remove ...
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  • 15
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    Effects of hyperthermia on rat embryos in culture (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 604-606 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When the embryos are explanted and grown in culture they may be exposed to raised temperatures for longer and in closely specified conditions. It also becomes possible to distinguish direct effects of hyperthermia from those that may result indirectly from changes in the maternal metabolism. We ...
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  • 16
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    Chromosome aberrations induced in rat lymphocytes by N-nitroso compounds as a possible basis for carcinogen screening (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 611-612 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This report describes the induction of aberrations in the lymphocytes of rats treated with dimethylnitrosamine, presumably during their passage through the liver and other organs capable of activating the compound. As expected, there was a highly significant increase in the number of abnormal ...
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  • 17
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    Ceramic steel? (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 703-704 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 X-ray diffractometer trace of the {400} peaks showing cubic (400) and tetragonal (004) and (220) reflections. Trace from an as-fired surface of zirconia partially-stabilised with lime (CuKa radiation). The transformation between tetragonal and monoclinic zirconia is believed to be ...
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  • 18
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    Radiocarbon date for the largest extinct bird (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 709-709 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have obtained a radiocarbon date from one of the shell fragments, about 4 mm thick and weighing 11.78 g. To remove surface contamination the outer layer of the shell was removed with acid. The interior of the shell was then dissolved in hydrochloric acid and the resulting CO2 carefully purified ...
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  • 19
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    Corpus allatum activity and wing determination in Megoura viciae (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 714-715 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Isolated adult apterae, reared on 'tic' beans at 15±2C and a photoperiod of 16.5 h were prepared as alatae producers and apterae producers by confining them in specimen tubes either singly or in groups of 10 for 24 h (ref. 2). Aphids were fixed, embedded and stained for light and electron ...
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  • 20
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    Vector–parasite (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 649-649 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS is a collection of 24 papers by 29 authors given at a 'workshop* held in Bethesda, Maryland, in April 1974. It does not provide a complete or a balanced account of the present state of invertebrate immunology, but some of the contributions are useful as quarries for information or because ...
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  • 21
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    Vladimir Nikonovich Starovskii, (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 651-651 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Vladimir Nikonovich Starovskii, a leading Soviet statistician and until recently Head of the Central Statistical Board of the Council of Ministers of the USSR, died on October 20 at the age of 70. Starovskii, was born at Pomoz-dino, in what is now the Komi ASSR. At the age of 18, he enrolled at ...
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  • 22
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    Spontaneous calcium action potentials in a clonal pituitary cell line and their relationship to prolactin secretion (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 741-742 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A clonal cell line (GH 3) isolated from a rat anterior pituitary tumour has been shown to secrete continuously both growth hormone and prolactin2'3. A hypothalamic releasing factor (thyrotropin releasing factor TRF) stimulates prolactin secretion and inhibits growth hormone secretion at nanomolar ...
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  • 23
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    Fast-breeder urged (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 470-470 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE UK standing Royal Commission on Environmental Pollution, which has had the radiological safety aspects of Britain's nuclear programme under consideration since the beginning of last year, has conceded that there is a case for establishing a full-scale demonstration power station based on the ...
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  • 24
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    Wilson on Blackett (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 471-472 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PRIME MINISTER Harold Wilson was in reminiscent mood when delivering the Blackett Memorial Lecture and naming the Physics Department the Blackett Laboratory at Imperial College last week. Patrick Blackett had been professor of physics at Imperial from 1953-65, and had worked with Harold Wilson ...
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  • 25
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    Canada's Science Council reconsiders its role (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 473-474 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EVER since the creation of the Ministry of State for Science and Technology (MOSST) in 1971, the status of the older Science Council of Canada, formed in 1966, has been in some doubt. The council was formed as an advisory body to the federal government on science policy, but this was also seen as ...
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  • 26
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    Kennedy's deed (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 475-475 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-You include a comment (November 6, p5) entitled "Kennedy's good deed" regarding the U.S. Senate vote to ban the use of diethylstiboestrol as cattle feed supplement. A number of controversial matters are introduced into this short article, but I wish to protest the attribution of purely ...
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  • 27
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    Control of enzyme synthesis by steroid hormones (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 477-478 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH it is now clear that the basic control of gene expression in prokary-otes is at the level of gene transcription it is still a cliche' to say that control in higher organisms is "less well understood". One mammalian system that has received a great deal of attention (especially in the ...
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  • 28
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    Aspirin's target in anti-inflammatory action (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 480-480 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE multi-enzyme complex which synthesises prostaglandins (PGs) ("PG synthetase", "fatty acid cyclo-oxy-genase") is bound firmly to the "micro-somal" membranes of cells, a fact which has naturally proved very frustrating both to enzymologists and pharmacologists who would like to study pure ...
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    [News and Views ‘picture story’] (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 482-482 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two Trips to Gorilla Land and the Cataracts of the Congo. By Richard F. Burton. Two vols. (London: Sampson Low and Co., 1876.) The chief interest of the second volume is connected with the Congo river, up which Burton journeyed as far as the Yellala, or rapids, which he calculates to be between ...
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    Miscellaneous intelligence (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 484-484 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] o "Contrary to the trends in all other countries in the European Economic Community the rate of movement into human consumption in Great Britain increased during the three previous seasons (and shows a provisional offtake for 1974/75 of 222 Ib per head per annum)." So says the Potato Marketing ...
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  • 31
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    Announcements (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 782-782 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] International meetings January 8-9, Molecular developmental biology, Glasgow (Department of Zology, University of Glasgow, Scotland). February 18, Materials microanalysis with less than 1,000 A spatial resolution, Churchill College, Cambridge (The meetings secretary, The Institution of ...
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  • 32
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    Mechanism of catalysis of hydrocarbon reactions by platinum surfaces (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 580-583 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Atomic height steps and kinks in steps have been identified on platinum surfaces as distinct catalytic sites where C–C, C–H and H–H bond scissions occur during the reactions of hydrocarbons. The active catalyst surface is covered with a carbonaceous overlayer whose properties ...
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  • 33
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    A spherical accretion model of Cyg X-1 (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 583-584 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In fact, spherical accretion on to a black hole can convert gravitational energy into radiation with an efficiency comparable with that of disk systems5. Earlier results, indicating that if L = rjM[GM/rs] (1) (where rs = 2GM/c2 is the Schwarzschild radius) then rj 〈^ 1, neglected to take ...
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    Electrical behaviour of inner and outer smooth muscle of sheep carotid artery (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 534-535 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have now been able to record from the outer, as well as the inner, muscle of the sheep carotid artery by microelectrodes after stripping away successive layers of tissue from the inner side of the artery. Electrotonic potential was applied through external electrodes6. The strips of artery used ...
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    Molecular structure of nicotinamide adenine dinucleotide (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 540-542 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have determined7 the molecular structures of cytidine-5'-diphospho-choline (CDP-choline) and CDP-5'. The study provides for the first time the detailed geometry of the pyrophosphate diester linkage present in a nucleotide coenzyme as well as its orientation with respect to the ribose moiety. The ...
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    Corrigendum (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 548-548 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The complete authorship of the article "Age of KBS Tuff in Koobi Fora Formation, East Rudolph, Kenya" (Nature, 258, 395; 1975) should be : G. H. Curtis, R. E. Drake, T. E. Ceding, B. L. Ceding and J. H. ...
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    Persistence of CMV genome in lymphoid cells after congenital infection (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 432-434 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This line was established from a 9-month-old male infant (S.D.), born with a petechial rash and periventricular calci-fications from a primiparous apparently healthy mother. Cytomegaloviruses were isolated from four successive urines of this baby. Three of these urines were collected from birth to ...
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    Prolonged activation of tyrosine hydroxylase in noradrenergic neurones of rat brain by cholinergic stimulation (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 440-441 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In brain, a three- to fourfold increase in the activity and amount of TH, comparable in many respects to the trans-synaptic induction of the enzyme observed in ganglia and adrenals, can be initiated in the cell bodies of noradrenergic neurones of the locus coeruleus by reserpine6'7. Since the locus ...
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    … and worms (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 555-555 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LIFE became mobile when animals evolved. Their movement, however, brings to mind the flight of birds or insects, the speed of horses, the mastery of swimming by fish and whales. But such creatures with highly efficient muscles working in antagonism to rigid internal or external skeletons are final ...
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    Appointment to Soviet Academy threatens autonomy (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 377-377 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE election of Academician Anatolii Petrovich Aleksandrov as President of the Soviet Academy of Sciences, to replace the interim President appointed last May, Academician Vladimir A. KotePnikov, took place in an atmosphere which may well indicate a greater degree of governmental supervision of the ...
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    Letter from Sweden (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 379-379 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN Myron B. Kratzer, Acting Assistant Secretary of State for Oceans and International Environmental and Scientific Affairs in the USA, spoke about international cooperation in nuclear energy in Stockholm recently, last week's agreement in London between the world's seven major nuclear suppliers ...
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    Cysteine and survival of transplanted thymoma (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 458-458 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been shown1 that 0.25 M cysteine could completely inhibit the growth of a transplanted thymoma, an effect claimed to be due to the ability of cysteine to inhibit collagenase. Cysteine is usually purchased as the hydrochloride and 0.25-M solutions are strongly acidic OH1.0), and, not ...
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    Catalysis, great and small (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 460-460 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE the pioneering work of Duynstee and Grunwald was published in 1954 there has been a growing interest in the catalysis of organic reactions by micelles. Much of this interest has been generated by the hope that micelles might mimic enzymes in their catalytic powers. Unfortunately, although the ...
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    Replication of human KB cell DNA after infection by adenovirus type 12 (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 636-639 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Human KB cells were prelabelled with 14C-thymidine (14C-TdR) for 15-24 h and then infected with ad 12 or mock infected. After 8 h of infection cells were pulse labelled with 3H-TdR for 15 min and then chased for the indicated times. The cells were then lysed and their DNA was analysed by alkaline ...
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    Perturbations in cell cycle progression from radioactive DNA precursors (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 633-636 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Because the first step in many experiments is lengthy labelling (for example, overnight) with a radioactive DNA precursor, and because our unpublished observations indicate unusual growth behaviour by several mammalian cell lines in the presence of tritiated thymidine (3H-TdR), we investigated the ...
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    Induced changes in gene conversion spectra (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 645-646 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Leblon1 showed a clear relationship between the molecular origin of induced mutations and their conversion spectra. He defined conversion spectra by two criteria-the frequency of postmeiotic segregation, and the relative frequencies of conversion to the mutant allele or to wild type. Four main ...
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    Human fibrinogen possesses binding site for staphylococci on Aα and Bβ polypeptide chains (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 643-645 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Interaction of staphylococci witn polypeptide chains of reduced and alkylated 125I-human fibri-nogen. Before interaction with staphylococci, three major bands representing Act, B|3 and y chains and corresponding three radioactivity peaks could be distinguished. After interaction, the Act ...
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    Textbook of psychopharmacology (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 648-648 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE world still needs honest jobbing textbooks, and it is within that genre that the present volume takes its place. In the introduction, Professor Levitt describes the origins of this text as being material he prepared for a graduate seminar: seven of his students became sufficiently enthused ...
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    Structure–property relationships (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 650-650 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS book essays a formidable task in its purpose of relating material properties and structure, in particular in demonstrating the application of some concepts in crystal chemistry to technologically important materials. The first chapter briefly reviews the principles of symmetry and crystal ...
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    Linkage disequilibrium between H–2 and t complexes in chromosome 17 of the mouse (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 296-299 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mice with t factors belonging to the same complementation group carry similar, if not identical, H–2 haplotypes although these factors were derived from widely separated geographical areas. This association between t and H–2 complexes suggests more than a casual relationship between the ...
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    X-ray sources and planetary nebulae (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 308-309 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Consider first the possibility that the compact object is a neutron star. The accretion rate from a wind is given approximately by6'7: M -isxicW^AY Mpn Y a Yx Macc _ 1.8X10 jxV'c.-i y06cms-yy06cms-y (1) where Mx is the mass of the accreting star, Mpn the rate of mass ejection, a the separation ...
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    ‘1/ f noise’ in music and speech (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 317-318 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] S(f)is related to the autocorrelation function K(f) P(f+i) by the Wiener-Khintchine relationships2. If V(t) can be characterised by a single correlation time TC, V(t) is correlated with K(/+T) for |T| TC, and is independent of K(/+T) for |T| 〉TC. It can be shown that S(f) is 'white' for ...
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    Stockport to Darlington? (1975)
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    Nature 258 (1975), S. 475-475 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-I have just seen your issue of September 25, in which you quote from an 1875 Nature in A hundred years ago. The extract deals with the opening of the first railway, but refers to the line "between Stockport and Darlington". Is this a 100-year-old misprint, or one perpetrated as recently as ...
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    A hundred years ago (1975)
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    Nature 258 (1975), S. 481-481 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MR. CASELLA, the well-known scientific instrument-maker, has sent us a specimen of a compass which will be a great boon to the many who are ignorant of the difference between the magnetic and the geographical poles, and of the fact that an ordinary compass points to the former and not to the ...
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    Molecular structures of cytidine-5′-diphosphate and cytidine-5′-diphospho-choline, and their role in intermediary metabolism (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 497-501 
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    Notes: [Auszug] The nucleotide coenzyme cytidine-5′-diphospho-choline is highly folded. The CMP-5′ parts of the molecules in the crystal structure are strongly linked by metal ligation and hydrogen bonds leaving the phosphoryl-choline residues relatively free. Cytidine-5′-diphosphoric acid exists ...
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    Computer prehistory (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 192-192 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-Professor Wilkes (October 16) identifies the prehistory of computers with "the life's work of just one man, Charles Babbage (1792-1871)". If Bab-bage's work is likened to the prehistory of the subject, how is one to classify the elaboration of the real first arithmetical machine, almost two ...
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    The optical counterpart of A0620—00 before its eruption (1975)
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    Nature 257 (1975), S. 659-660 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The position was measured on two 10-min exposures on Eastman Kodak IlaO plates taken on the 13-inch astrographic telescope at Herstmonceux on August 27-28 and 28-29, 1975 relative to standard positions of AGK3 stars, using a Zeiss x-y measuring engine. It was reduced using the methods described by ...
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    Defects in Solids (1975)
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    Nature 258 (1975), S. 274-274 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS volume is the second in a series of works which aim to present the properties of solids from a chemical viewpoint. Studies of defects, imperfections or impurity ions may be described equally well from a basis of chemistry or physics and this volume has a definite chemical bias but is still ...
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    Books brief (1975)
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    Nature 258 (1975), S. 275-275 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Principles of Microbe and Cell Cultivation. By S. John Pirt. Pp. x + 274. (Blackwell Scientific: Oxford and London; Halstead: New York, 1975.) ?10.50. THIS book has been written for students of microbiology and as a reference book for research workers involved in the problem of microbial cell ...
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    Books brief (1975)
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    Nature 258 (1975), S. 275-275 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The New Mars: Discoveries of Mariner 9. By William K. Hartmann and Odell Raper. Pp. 179. (NASA Office of Space and Science : Washington, DC, 1974.) $8.75. THIS is in many ways the definitive book to emerge from the Mariner 9 adventure, produced with the cooperation of the Mariner 9 Science ...
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    Books brief (1975)
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    Nature 258 (1975), S. 275-275 
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    Notes: [Auszug] Inter facial Electrochemistry: An Experimental Approach. By E. Gileadi, E. Kirowa-Eisner and J. Penciner. Pp. xviii + 525. (Addison-Wesley: Reading, Massachusetts and London, June 1975.) Cloth $19.50; paper $13.50. THIS book is divided into two sections, theoretical and practical. ...
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    Hypsilophodon and Iguanodon from the Lower Cretaceous of North America (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 668-669 
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    Notes: [Auszug] Though Hypsilophodon and Iguanodon are well known from Europe and northern Africa (Fig. la) no trace of either genus has yet been reported from North America and the only possible Neocomian ornithopod described from that continent is from the Lakota Sandstone of South Dakota and is referred to ...
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    Superoxide dismutase in photosynthetic organisms provides an evolutionary hypothesis (1975)
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    Nature 257 (1975), S. 670-672 
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    Notes: [Auszug] Several subsequent findings, however, have justified the cautionary nature of Fridovich's closing remarks to his hypothesis3. Lavelle et at.4 found only a single, manganese-containing SOD in the luminous fungus Pleurotus olearius; Lindmark and Miiller5 reported cyanide-insensitive SOD activity in ...
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    Positive control of cyclic AMP on mesenchymal factor controlled DNA synthesis in embryonic pancreas (1975)
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    Nature 257 (1975), S. 702-705 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 The incorporation of 3H-thymidine in the presence of inactivated MF and cyclic AMP is due to the labelling of many cells. Pancreatic epithelia were isolated and cultured as described in Table 1 in medium containing 1 mg ml-1 of inactivated factor in the presence (a) or absence (6) of 103 M ...
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    Interval coding of temperature by CNS neurones in thermoregulation (1975)
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    Nature 257 (1975), S. 688-690 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We used adult New Zealand White rabbits, Oryctolagus cuniculus in our experiments. Several probes were stereo-taxically implanted12 in the brain: a thermocouple reentrant tube in the left lateral PO, a thermode13 and a thermocouple re-entrant tube in the lateral border of the right PO and a ...
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    Embryonic ε chains of mice and rabbits (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 714-716 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] All non-a-type embryonic globin chains of both species are (3-type e chains. We find less structural similarity between the 8 chains of different species than between the (3 and e chains of the same species. This indicates, in contrast to the embryonic x chains, that e chains diverged by ...
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    Plasma membrane-associated increase in guanylate cyclase activity in regenerating rat liver (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 698-700 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Partial hepatectomy induces the remaining liver cells to undergo a change from a resting to a proliferating state similar to the one cited above for cultured cells8, and the regenerating liver after partial hepatectomy presents a well defined model system for studying cell proliferation in vivo. In ...
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    Ultraviolet light-induced unscheduled DNA synthesis in mouse oocytes during meiotic maturation (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 705-706 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fully-grown oocytes aseptically isolated from the ovary of adult mice were cultured in chemically defined medium9. Oocytes were irradiated 2-18 h after isolation using germi-cidal lamps, and incubated immediately in medium containing 3H-thymidine. Non-irradiated oocytes served as controls. ...
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    Simultaneous changes in fluorescence and optical retardation in single muscle fibres during activity (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 693-696 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Tension, Nile Blue A fluorescence and optical retardation in a single muscle fibre during a twitch. Records a-c show twitch tension recorded in Ringer (〈a), 18 min after introducing Ringer + Nile Blue A (0.0002 mg ml"1) (b), and 10 min after replacing with 270 mM NaCl Ringer + dye (0.0002 ...
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    Increases in cyclic GMP levels in brain and liver with sodium azide an activator of guanylate cyclase (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 700-702 
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    Notes: [Auszug] In slices from cerebral cortex, cerebellum and liver cyclic GMP levels increased within 5 s after the addition of 1 mM NaN3 and, in 1-5 min, reached maximal levels (two to fivefold increases) that were maintained for 10 min (Fig. 1). With 1 mM NaN3 there was no change in the level of cyclic AMP in ...
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    Duplex microtubule is a new form of tubulin assembly induced by polycations (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 707-709 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Highly purified tubulin prepared from pig brain4 was polymerised at 37 C to form microtubules. Protamine was added at a twofold molar excess over protein, and there was an immediate increase in turbidity. The microtubules, which had the characteristic 40 A axial periodicity and 250 A diameter, were ...
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    Books brief (1975)
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    Nature 257 (1975), S. 725-725 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Image Science: Principles, Analysis and Evaluation of Photographic-type Imaging Processes. By J. C. Dainty and R. Shaw. Pp. xiv + 402. (Academic: London and New York, January 1975.) £9.80; $26.00. SCIENTISTS are constantly finding new ways of exploiting the immense capacity of ...
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    Votes in sewage? (1975)
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    Nature 258 (1975), S. 101-101 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OUR politicians complain of public apathy. Meetings held during the last General Election were usually badly attended. In many country districts even the appearance of a Cabinet Minister only produced a handful of listeners, and the platform party often outnumbered the audience. It was surprising ...
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    Stantec Zebra (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 102-102 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-May we venture to answer your question (October 16, page 544) regarding the present whereabouts of the Stantec Zebra? It is alive, well and working unconscionably hard somewhere approximately 350 miles north of St Albans. The Computer Board has little reason for complacency as regards the ...
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    Sakharov and the cause of peace (1975)
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    Nature 257 (1975), S. 528-529 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE announcement last week of the award of the 1975 Nobel Peace Prize to Academician Andrei Sakharov coincided neatly with the 250th anniversary celebrations of the Soviet Academy of Sciences. This event, however, was not claimed by the academy as a culminating point of the celebrations, a tribute, ...
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    Deterioration (1975)
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    Nature 257 (1975), S. 532-532 
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    Notes: [Auszug] SIR,-Whereas the quality of the scientific contributions to Nature remains uniformly of the highest calibre, I have noticed over a period of several years a steady deterioration in the quality of editorial contributions. A recent example (August 21) is the astonishing revelation that the old ...
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    Persistent meteor trains (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 533-534 
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    Notes: [Auszug] BRIGHT meteors often leave a faint, persistent luminosity along the visual path after they have passed. For most meteors this luminous train lasts for a very short time, but for some it may be observable for seconds, minutes or even an hour. This persistent train is not formed along the whole path ...
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    Chromosomal aberrations as tests for mutagenicity (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 103-104 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE very obvious structural changes which can be induced in chromosomes, and the relative simplicity of the cyto-logical methods which render them observable have made 'chromosomal aberrations' a popular criterion for the evaluation of potential environmental hazards. Recent developments of ...
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    Organising neural development (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 104-105 
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    Notes: [Auszug] IN the experiments of Chung and Cooke, reported on p. 126 of this issue, two lines of enquiry converge on the optic tectum of Xenopus, the African clawed toad. The consequence is that the classical embryological concept of specialised organising regions in development can for the first time be ...
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    Whatever happened to the Stantec Zebra ? (1975)
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    Nature 257 (1975), S. 544-546 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BRITISH universities, with about 250,000 students, 40,000 of these at the graduate level, have roughly £58 million of capital equipment on their premises in the form of central computers, and the annual expenditure on hardware, buildings and recurrent costs runs at about £12 million. ...
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    Thymus-dependent lymphocytes (1975)
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    Nature 258 (1975), S. 106-108 
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    Notes: [Auszug] Under the patronage of the Rockefeller Foundation a conference was held at the Villa Serbelloni, Bellagio, Italy, from September 1–6, to consider the functional taxonomy of populations of thymus-derived lymphocytes, and by implication their role in the functional integration of the immune ...
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    Stanley rides again (1975)
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    Nature 258 (1975), S. 107-107 
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    Notes: [Auszug] BIOLOGISTS who joined the recent Zaire River expedition brought back a fine collection of flora and fauna, even if at times they may have felt that the price was rather high. In spite of bothersome details such as malaria, amoebic dysentery, fearsome rapids and mysterious footprints, the report ...
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    31 P NMR studies of NADPH and NADP + binding to L. casei dihydrofolate reductase (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 564-566 
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    Notes: [Auszug] The 31P NMR spectra of NADPH and NADP+ in their complexes with dihydrofolate reductase show effects from three-bond 1H-31P coupling constants which indicate that the conformation about one of the ...
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    Palaeomagnetic evidence from DSDP cores of northward drift of India (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 570-572 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Further palaeomagnetic measurements have been completed by us following the recovery during Leg 24 (ref. 5) of Oligocene sediments and basalts at Deep Sea Drilling Project (DSDP) site 238 on the southern edge of the Indian Plate (Fig. 1). Only those samples considered the most stable after ...
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    One step forward and two back for the steady state (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 540-540 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CONTRARY to widespread belief, although the steady state theory of the Universe may be dead it refuses to lie down, and a small band of enthusiasts continues to try to breathe life into the presumed corpse. But the chances of a miraculous resuscitation do not look too good, as the appearance of two ...
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    The ENIAC, an electronic calculating machine (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 546-546 
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    Notes: [Auszug] a, Digit trays; b, program trays; c, function unit; d, card reader; e, card punch;/, high speed multiplier; g, testing equipment. The machine is built up in the form of a number of units each consisting of one or more vertical panels about 8 ft. high and 2 ft. wide, of which there are altogether ...
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    Diversity of cross-bridge configurations in invertebrate muscles (1975)
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    Nature 257 (1975), S. 561-564 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] X-ray diffraction patterns from relaxed invertebrate muscles reveal the thick filament symmetries and cross-bridge configurations. The cross bridges are substantially angled to the filament axes. The results on symmetry are generally consistent with Squire's ...
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    Discrimination between eukaryotic and prokaryotic, and formylated and non-formylated, initiator tRNAs by eukaryotic initiation factor EIF-3 (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 616-618 
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    Notes: [Auszug] We have isolated EIF-3 from mouse Krebs II ascites cells by chromatography of a 0.25M KC1 ribosomal salt wash on DEAE-^Sephadex and hydroxylapatite (details of the isolation of EIF-3 will be presented elsewhere). EIF-3, like initiation factor IF-2 from E. co//n12, forms a ternary complex with GTP ...
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    First marine Triassic fauna from the Antarctic Peninsula (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 577-578 
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    Notes: [Auszug] It is also noteworthy that the sandstones and greywackes of the Legoupil Formation are lithologically and structurally unlike other known Cretaceous sequences in western Antarctica, more closely resembling rocks of the Trinity Peninsula 'Series'3"5 of possible late Palaeozoic age5"7. Both ...
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    Tilt aftereffects with subjective contours (1975)
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    Nature 257 (1975), S. 581-582 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Edges are visible within (a) and (b) in the absence of local luminance discontinuity, (b) was used as the subjective contour stimulus in the experiment. Test measures were also obtained following inspection of (c) and (d); these displays were used as control conditions in that they do not ...
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    Tolerance of Lolium hybrids to quantitative variation in nuclear DNA (1975)
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    Nature 257 (1975), S. 587-588 
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    Notes: [Auszug] As the result of recombination in Fl5 DNA values range from approximately that of the low DNA parent to the high. Moreover, the distribution closely approaches and does not differ significantly from that of a normal curve. We conclude, in respect of the viability of gametes and of zygotes, ...
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    Influence of selection pressures on enzyme polymorphisms in Drosophila (1975)
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    Nature 257 (1975), S. 590-592 
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    Notes: [Auszug] Yamazaki and Maruyama8'9 concluded, from a survey of observed gene frequencies at 1,045 protein loci in a wide variety of species, that the data are compatible with the hypothesis of strict neutrality. A similar analysis10 of the data for three Drosophila species, however, has shown a significant ...
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    Rough passage in USA for first breeder reactor (1975)
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    Nature 257 (1975), S. 434-436 
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    Notes: [Auszug] TO its supporters, who include President Ford and his predecessor, the liquid metal fast breeder reactor (LMFBR) could mean the difference between long term prosperity and economic disaster for the United States. But to its critics, who are legion, the reactor is an unacceptable health hazard and ...
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    After the Third World War (1975)
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    Nature 257 (1975), S. 439-439 
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    Notes: [Auszug] IN a controversial report published this week, a committee of the National Academy of Sciences (NAS) has convincingly demonstrated how little we know about the potential long term consequences of a full-scale nucleai war. The committee attempted to assess the magnitude of physical and biological ...
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    Healthy exchanges (1975)
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    Nature 257 (1975), S. 441-441 
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    Notes: [Auszug] THE first protocol of the Anglo-Soviet Joint Commission on Health Cooperation, signed on September 25, 1975 by Mrs Barbara Castle, Secretary of State for the Social Services, and Professor Boris Petrovskii, Soviet Minister of Health, represents the first stage in the implementation of the ...
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    Leprosy treatment (1975)
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    Nature 257 (1975), S. 442-442 
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    Notes: [Auszug] SIR,-Being engaged in leprosy control work in India, I daily face exactly those problems mentioned by Browne and Davey (May 15) as the main obstacles in implementing regular and sustained treatment of leprosy patients, namely, the social aspects of leprosy and the patients' attitude to leprosy. I ...
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    Haze in the stratosphere (1975)
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    Nature 258 (1975), S. 134-134 
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    Notes: [Auszug] I watched carefully for visual evidence of the tropopause throughout the flights. During the descent to Gander cirrus clouds extended up to 44,000 feet. There was occasionally slight clear air turbulence, sometimes regular enough to indicate a billow wavelength of 120m, at many different heights ...
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    Continuous plankton records show fluctuations in larval fish abundance during 1948–72 (1975)
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    Nature 258 (1975), S. 134-136 
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    Notes: [Auszug] Counts of fish larvae from selected recorder samples are allocated to statistical rectangles of 1 latitude by 2 longitude, and the mean number of fish larvae per recorder sample per month is calculated for each rectangle. These means are then used for the analysis of variability in distribution ...
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    Structure of graphite by neutron diffraction (1975)
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 136-137 
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    Notes: [Auszug] X-ray diffraction photographs of almost seventy small, natural single crystals of graphite indicated that two or three were of exceptional quality. The largest was a six-sided plate 0.2mm thick, approximately 2mm long and 1.4mm across. This crystal was glued to a glass fibre, so that the axis of ...
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    Observations at 6 cm of the solar active region (1975)
    [s.l.] : Nature Publishing Group
    Nature 257 (1975), S. 465-467 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The WSRT consists of twelve 25 m paraboloids along an east-west baseline, combined to form 20 interferometers. For our observations the minimum spacing was 90 m, the maximum 1,458m, the separation between successive baselines was 72 m and the integration time was 30 s. At the wavelength of 6 cm and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/257465a0
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