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  • Nature Publishing Group  (3,471)
  • 1980-1984  (3,471)
  • 1925-1929
  • 1981  (3,471)
  • 1
    Electronic Resource
    Electronic Resource
    Electronic publishing: Journal plugs in (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 686-687 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The British experiment to explore the feasibility of electronic scientific communication is well under way. The experimental electronic journal of the Universities of Loughborough and Birmingham, Computer-Human Factors, has received 16 papers in its first year more than an earlier experiment in ...
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    URL: http://dx.doi.org/10.1038/294686c0
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  • 2
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    Electronic Resource
    Are stress fibres contractile? (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 691-692 
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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] INTEREST in stress fibres arises in part because their organization resembles the structure of striated muscle myofibrils. Not only do they contain many of the same proteins (for example, actin, myosin, a-actinin and tropomyosin) but many of these are arranged in an alternating periodic pattern ...
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    URL: http://dx.doi.org/10.1038/294691a0
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  • 3
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    Calcium and calmodulin in Kyoto (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 693-694 
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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] MANY diverse biological processes are regulated by the concentration of intra-cellular calcium, including cell motility and the synthesis and degradation of biologic-ally important peptides and nucleotides. The effects of calcium are often mediated by the small (molecular weight 16,500), acidic ...
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    URL: http://dx.doi.org/10.1038/294693a0
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  • 4
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    The gassiest comet? (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 696-696 
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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] COMET BRADFIELD, 1979X, is the comet in question and recent measurements indicate that the ratio between the mass of gas and the mass of dust emitted by this comet per unit time is higher than that measured for any other comet. The underlying message is that no two comets seem to be the same and ...
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    URL: http://dx.doi.org/10.1038/294696a0
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  • 5
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    Pontnewydd Cave in Wales—a new Middle Pleistocene hominid site (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 707-713 
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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] An Acheulian industry in association with a hominid molar has been found at Pontnewydd Cave. This tooth represents the oldest hominid specimen known from Wales and, except for the Swanscombe fossil, from Britain. The molar is probably from a young adult and the tooth closely resembles those of ...
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    URL: http://dx.doi.org/10.1038/294707a0
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  • 6
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    Literary anarchy (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 688-688 
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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 The problems raised in recent letters (7 May, p.7, 28 May, p.278) about literature search and by Dana L. Roth (8 October, p.422) about recruiting librarians with subject expertise may be solved if and when today's librarians turn towards Anarchism as in the following: "How to be an Anarchistic ...
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    URL: http://dx.doi.org/10.1038/294688d0
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  • 7
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    First remote sensing of the plasmapause by terrestrial myriametric radiation (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 728-730 
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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] Trapped non-thermal continuum (NTC) is used to describe broad-band radio noise at frequencies ^40 kHz observed by spacecraft in the plasmatrough, the cavity of low-density plasma between the Earth's plasmasphere and magnetosheath1. Escaping NTC is noise at higher frequencies which propagates ...
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  • 8
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    Anomalous wind estimates from the Seasat scatterometer (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 735-737 
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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] Figure 1 shows a plot of the SASS wind vectors for Rev. 557 (23.16 GMT, 4 August 1978) together with wind speeds measured by ships at the corners of the JASIN meteorological triangle. Over most of the area SASS winds are 7 m s"1 or less but in a region centred on 59.1 N and 12.0 W, the SASS speeds ...
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  • 9
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    Extensive regulatory capabilities of a Drosophila imaginal disk blastema (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 744-747 
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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 used the property that imaginai disk tissue differentiates when transplanted into a metamorphosing larva to determine the fate of particular first leg disk regions (Fig. la,b). The three-quarter lateral plus endknob fragment (3/4L + EK) differentiated sectors A, B, C and D plus the tarsus. This ...
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  • 10
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    β -Endorphin and dynorphin control serum luteinizing hormone level in immature female rats (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 757-759 
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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] Morphine, the enkephalins and /3-endorphin exert their actions in the MBH by modulating the LH secreting activity of the pituitary35. The tonic inhibition effected by the endorphins has been most convincingly documented in immature female rats: a dramatic (10-fold) increase in serum LH levels is ...
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  • 11
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    One message on the state of science (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 599-599 
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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 United States Congress has a built-in flair for the theatrical. So much is clear from the circumstances that brought Dr George Keyworth and Dr Frank Press (his predecessor as Presidential Science Advisor now transmogrified to president of the National Academy of Sciences) to the same witness ...
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  • 12
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    Telecommunications: French hanging on (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 602-602 
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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] Brussels French doubts about the wisdom of opening up some public purchasing contracts in telecommunications to its partners in the European Economic Community held up agreement last Monday on a set of recommendations designed to stimulate the growth of the European market in telecommunications. ...
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    URL: http://dx.doi.org/10.1038/294602b0
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  • 13
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    Pleasant surprise (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 602-602 
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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 shortfall in admissions of overseas students to British universities has not been as great as anticipated. According to the University Grants Committee (UGC) admissions of overseas undergraduates in 1981-82 totalled 4,918 compared with 5,017 in 1980-81, a shortfall of about 2 per cent. ...
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  • 14
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    Polish sciene advice: Reforms in limbo (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 604-604 
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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] One of the casualties of the Polish government's sudden suspension of the Solidarity trade union at the weekend may well be the draft bill that would have made it obligatory for government agencies to consult "scientific experts" before making important decisions. News of the bill came in a ...
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  • 15
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    NIH guidelines (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 606-606 
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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] SIR - Comments are invited on two proposals for a major revision of the US National Institutes of Health (NIH) guidelines for research involving recombinant DNA molecules. The recombinant DNA Advisory Committee (RAC) has developed a proposed revision and recommended that it be published for ...
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  • 16
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    Hybridoma technology identifies protective malaria antigens (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 612-612 
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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] VARIOUS partially successful attempts have been made to immunize experimental animals against -malaria but preparations of the most easily obtained antigens, those derived from the forms of the parasite in the blood, have been relatively crude and poorly characterized. The use of monoclonal ...
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  • 17
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    Two conserved sequence blocks within eukaryotic tRNA genes are major promoter elements (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 626-631 
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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 split promoter sequences of a tRNALeuCUG gene of Xenopus laevis have been mapped to nucleotides 13–20 and 51–64 of the tRNALeu coding sequences. The sequences closely coincide with two conserved sequence blocks present in all eukaryotic tRNA ...
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    URL: http://dx.doi.org/10.1038/294626a0
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  • 18
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    Human immunoglobulin D segments encoded in tandem multigenic families (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 631-635 
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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 family of germ-line immunoglobulin D-region genes has been cloned and mapped at regular intervals along a 33-kilobase length of human chromosomal DNA. Each member of the family varies slightly in sequence, but precisely conserves the recombinational signals and spacing that flank each gene. This ...
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  • 19
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    Production of NO and N 2 O by soil nitrifying bacteria (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 641-643 
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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] Table 1 Relative rates for NO, N2O and NO2 production by cultures of Nitrosomonas europaea Oxygen concentration (% v/v) NO/N2O /molN\ N20/NO2 / molNN NO/NOJ / molNX No. of replicates VmolN/ \ molN/ ImolNJ 0.5 5.1±3 0.9±0.3* 3.8±1.2 2 ...
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  • 20
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    An oceanic carbonatite volcano on Santiago, Cape Verde Islands (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 644-645 
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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 Geological sketch map of northern Santiago (after Serralheiro9). ^, Phonolite (youngest lavas); Pliocene plateau basalts of Pico da Antonia Formation (PA); El, intrusive, pyroclastic-and epiclastic carbonatitic lithic tuffs. C" is explained in Fig. 2. An oceanic character for the Cape Verde ...
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  • 21
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    Ipswichian fauna of Victoria Cave and the marine palaeoclimatic record (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 652-654 
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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] Victoria Cave is situated at an altitude of 440 m a.s.l. in a Carboniferous limestone scar north-east of Settle, North Yorkshire. The Victoria Cave Exploration Committee of the British Association for the Advancement of Science conducted excavations at the site from 1870 to 1878 and published ...
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  • 22
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    Alisphenoid equivalents in placentals, marsupials, monotremes and fossils (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 668-670 
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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 area of interest develops in the lateral wall of the cavum epiptericum, the cartilaginous ala temporalis in front and the cartilaginous otic capsule (future petrosal) behind. In all mammals a fibrous spheno-obturator membrane7 lies between these, extending up to the edge of the chondrocranium ...
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  • 23
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    Polycythaemia- and anaemia-inducing strains of spleen focus-forming virus differ in post-translational processing of envelope-related glycoproteins (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 663-665 
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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 the genomes of the SFFVs derived from FVP and FVA stocks differ slightly10, both encode similar primary trans-lational productsa 45,000 molecular weight (Mr) gag-related protein (p45Bag) and a 52,000-Mr envelope-related glycoprotein (gp52env)6'11'12. Studies with subgenomic fragments of ...
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  • 24
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    Corrigenda (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 670-670 
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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 the letter ‘Is the similarity of monozygotic twins due to genetic factors alone’ by K. Grtner and E. Baunack, Nature 292, 646-647, in Table 1 mean ± s.d. of the MZ should be 26.41 ±2.58 instead of 26.2 ±2.66, and in Tables 1 and 2 the sb2i values of 51- and ...
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  • 25
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    Fresh interpretation of the galaxies (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 676-676 
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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] SEVERAL years ago I walked into the refrigerated plate-storage room of the Dupont telescope at the Las Campanas Observatory in Chile, only to be confronted with a yellow wall of Kodak plate boxes carrying the message "Do not use Reserved for Allan Sandage". These were the plates that were yet to ...
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  • 26
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    Books Received (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 679-680 
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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] Mathematics BANASCHEWSKI, B. and HUFFMAN, R.-E. (eds). Continuous Lattices. Lecture Notes in Mathematics, Vol. 871. Proceedings of the Conference (Workshop IV) held at the University of Bremen, Germany, November 1979. Pp.413. FlexilSBN 3-540-10848-3. (Springer-Verlag: 1981.) DM43.50, ...
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    Germany's breeder: Gap unbridged (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 505-505 
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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] Ulm, West Germany Rapidly rising costs are threatening the future of West Germany's SNR-300 fast-breeder reactor, with government and public service utility companies still arguing over who should foot the the increased bill if the project is to continue. The Minister of Research and Technology, ...
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    Mechanism of E. coli RecA protein directed strand exchanges in post-replication repair of DNA (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 659-662 
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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 assay for strand exchange involves the incubation of 32P-labelled duplex restriction fragments with unlabelled circular ssDNA, to which we have annealed a short complementary 3H-labelled fragment (Fig. la(i)). The annealed substrate sedimented faster through neutral sucrose than the short ...
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    Question of faiths (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 510-510 
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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 It is admirable to see scientists such as A.H. Batten and E.W. MacKie (Nature 30 July, p.402) come to the aid of the theory of evolution when they perceive that it is threatened by creationism. Such enthusiasm shows their dedication to rational thought. However, when in their eagerness they ...
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    New low temperature phases of H 2 and D 2 at ultrahigh pressure (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 513-514 
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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] AT very low temperatures and atmospheric pressure the molecules in solid parahy-drogen (p-lty and orthodeuterium (o-D2) are in spherically symmetric rotational states. At a sufficiently high density it is expected that the interactions between the hydrogen molecules deform the average molecular ...
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    100 Years Ago (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 518-518 
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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 conduct of competitive examinations in China seems to be farther from perfection than might be expected in the case of such an ancient institution. The. Peking Gazette contains a memorial from one of the censors complaining that the matsheds which are erected at the entrance to the examination ...
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    Global satellite measurements of water vapour, wind speed and wave height (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 529-532 
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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] Data from the 100 days of Seasat observations in 1978 provided the first global maps of mean wind speed and wave height measured from satellites. They reveal previously unknown features in both fields and demonstrate the potential for satellite monitoring and forecasting of the worldwide sea ...
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    Science in France: Democratic union (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 506-507 
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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] Grenoble How far can democracy go? This question is emerging as one of those central to the new politics of science in France, and it was put to a remarkable test last week. Professor Robert Tournier, the 47-year-old director of the renowned laboratory for very low temperatures at Grenoble, in ...
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    US research patents: Conflicts arise (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 506-506 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington United States universities are lobbying hard in defence of their newly-won right to an automatic patent on all inventions arising from federally supported research. They are alarmed that their rights may be circumscribed in what may be the most profitable field genetic engineering. ...
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    Myosin filaments have non-phosphorylated light chains in relaxed smooth muscle (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 567-569 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Longitudinal strips of rabbit portal anterior mesenteric vein were attached to force transducers, stretched to physiological (1.75X slack) length, mounted in muscle baths at 37 C in oxygenated Krebs solution and equilibrated for 1 h. Some muscles were exposed for 1.5 min to 0.2 µg ml−1 ...
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    Neurotensin receptors are located on dopamine-containing neurones in rat midbrain (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 587-589 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Male, Sprague-Dawley rats (225-275 g) were used in our experiments. 6-Hydroxydopamine (Sigma) was dissolved in saline containing 0.2 mg ml'1 ascorbate to give a final concentration of 2 mg ml"1 and 6 jxg of drug were injected over a 5 min period with a Hamilton 5 ! syringe, which was placed ...
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    Creating confusion (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 595-596 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE memorable Dr Pangloss was introduced to the public by his creator in order to lampoon a traditional but cyclo-pean perception of the natural world - the prejudice that there exists some benign and covert principle of optimality governing all things. The style of The Creation suggests that ...
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    Puzzles of perception (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 598-598 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE perceptual psychologist J.J. Gibson (1904-1979) wrote a series of books which crystallized a theoretical stance he called "ecological optics" and "direct perception". The books were widely read and many details from them became absorbed as standard textbook material, but it seemed for many ...
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    Intragenic amplification and divergence in the mouse α -fetoprotein gene (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 713-718 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The DNA sequences of the 14 exon junctions in the murine α-fetoprotein gene were determined using cloned genomic DNA. When these exons were examined with respect to the polypeptide segments they encoded, a direct correspondence between a threefold repeat of four exons and three protein ...
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    European cooperation: COST in limbo (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 394-394 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Brussels The celebrations last week marking the tenth anniversary of COST, an organization pursuing "European Cooperation in the Field of Scientific and Technical Research", were appropriately low-key. Indeed, the role of COST itself has become so unobtrusive that its officials fear that its ...
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    University problems (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 395-395 
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    Notes: [Auszug] Among the points in the secular part of Sir Andrew Huxley's anniversary address on Monday were the following: The dual support system for academic research, "a shadow of what it used to be", is in danger of being totally obliterated. Although the British government had agreed in its expenditure ...
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    Solvated electrons in the upper atmosphere (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 732-733 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the Earth's upper atmosphere solvated electrons may be formed by attachment of free electrons to clusters of molecules having large dipole moments or polarizabilities. Thus, solvated electron formation would be restricted to regions where both free electrons and the corresponding neutral species ...
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    Consider the incompleteness of the geological record (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 397-398 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOR more than a century geologists have felt comfortable with the notion that geological processes, although very slow, are also steady and so capable of moulding the Earth given enough time. The steady drip hollows the stone. The idea of steadiness came, at least in part, in reaction to the ...
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    Charnockite and granite formation and influx of CO 2 at Kabbaldurga (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 550-552 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During recent field work in the Archaean ( 2,700 Myr) gneiss terrain between Mysore and Bangalore, Karnataka, south India, the southern end of the Closepet Granite7 including the area of Kabbaldurga was examined. This granite is a substantial body with a linear extension northwards for some 200 km ...
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    Limitations on the scale of mantle heterogeneities under oceanic ridges (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 552-554 
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    Notes: [Auszug] The general geology of the FAMOUS area has been described elsewhere6'7. In the central valley of this slow spreading ridge (2cmyr1), we can distinguish two types of structures, real volcanoes such as Mount Venus, and lava flows, probably of fissurai type. Several samples were collected from each ...
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    Bond-lengths, bond angles and transition barrier in ice Ih by neutron scattering (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), 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] Measurements were done at the four-circle neutron diffractometer D9 of the Institut Laue-Langevin using a wavelength of 0.7107(5) A on a pure specimen of 6.5 mm3 cut from a larger sample (supplied by A. Chaillou, Laboratoire de Glaciologie, Grenoble). The temperature was maintained using a closed ...
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    Nα -acetylation is linked to α -MSH release from pars intermedia of the amphibian pituitary gland (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 558-560 
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    Notes: [Auszug] Fig. 1 Tryptic peptide mapping by HPLC of newly synthesized des-Nα-acetyl-a-MSH () and a-MSH (O). Neurointermediate lobes of black-adapted X. laevis were incubated for 4.5 h at 22 C in 50 µl incubation medium (for composition see rf. 5) containing 20 µg each of 3H-lysine, ...
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    The regulatory subunit of adenylate cyclase interacts with cytoskeletal components (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 560-562 
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    Notes: [Auszug] Fig. 1 Adenylate cyclase activity in synaptic membranes prein-cubated with fatty acids or microtubule-disrupting agents. Enriched synaptic membrane fractions (ESMF) were prepared from 21-day old male Sprague-Dawley rats by a modification 25 of the method of Gray and Whittaker26. After washing the ...
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    Non-muscle α-actinins are calcium-sensitive actin-binding proteins (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 565-567 
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    Notes: [Auszug] a - Actinin has been purified from cultured HeLa cells using a modification of the procedure we developed for the purification of a-actinin from smooth muscle14. Chromatography of this a -actinin on hydroxyapatite resulted in the separation of two forms with slightly different subunit molecular ...
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    Fluctuations in the microsecond time range of the current through single acetylcholine receptor ion channels (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 464-466 
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    Notes: [Auszug] Single ion channel currents from the perisynaptic region of normal frog (Rana temporaria) cutaneus pectoris muscle were recorded at 10-13 C (ref. 4). The Ringer solution contained (mM) NaCl 115, KC1 2.5, CaCl2 1.8 and HEPES buffer 3, pH-7.2 Figure la shows the typically low frequency of single ...
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    Sexual activity reduces lifespan of male fruitflies (1981)
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    Nature 294 (1981), S. 580-582 
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    Notes: [Auszug] The flies used were an outbred stock collected in Dahomey in 1970. Sexual activity was manipulated by supplying individual males with receptive virgin females at a rate of one or eight virgins per day. The longevity of these males was recorded and compared with that of two control types. The first ...
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    Isolation and biogenesis of a new peptide from pancreatic islets (1981)
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    Nature 294 (1981), S. 589-591 
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    Notes: [Auszug] To obtain amounts of the co-synthesized pro-PP-related product sufficient for structural, immunological, and biological studies, we used the biosynthetically labelled peptide as a probe. Duodenal lobes of canine pancreas which are especially rich in PP18 were extracted in acid ethanol and ...
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    The results of thinking small (1981)
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    Nature 294 (1981), S. 596-596 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] GOOD popular expositions on particle physics are rare; this is one of them. It is a sequence of separate lectures given by prominent figures in the field at Wolfson College in 1980. In contrast to the common pattern in such series, the lecturers - at least occasionally - cross-refer to one ...
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    Chemical health risks: Not so great (1981)
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    Nature 294 (1981), S. 603-603 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington After reviewing the scientific literature on the health risks associated with the use of nitrites and nitrates as food preservatives, a committee of the National Academy of Sciences National Research Council (NRC) has concluded that current exposure levels constitute an insufficient ...
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    Laotian postscript (1981)
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    Nature 294 (1981), S. 606-606 
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    Notes: [Auszug] SIR - The clandestine US war against Laos during the Second Irfdochina War was for the United States substantially an air war in terms of environmental impact almost entirely so. Its operational aspects have been well described1. Laos received more than 2.2 million tonnes of air-delivered ...
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    A plasma wake for Mars' satellite Deimos (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 610-611 
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    Notes: [Auszug] SUCH diverse topics in space physics as the formation of the Earth's magnetosphere and the electrical charging of spacecraft can be gathered together under one heading the interaction between a plasma and a moving body. The physical processes involved are quite varied and depend on the size of the ...
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    100 years ago (1981)
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    Nature 294 (1981), S. 613-613 
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    Notes: [Auszug] Hairstar from the Taimur Coast. From Nature 25, 22 December, 181 ...
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    Cosmic methadone (1981)
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    Nature 294 (1981), S. 488-489 
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    Notes: [Auszug] The Edge of Infinity: Naked Singularities and the Destruction of Spacetime. By Paul Davies. Pp.194. ISBN UK 0-460-04490-7; ISBN US 0-671-44063-2. (Dent/Simon & Schuster: 1981.) £7.95, $14.50. "BEYOND black holes to the end of the universe", trumpets the cover blurb. The author, ...
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    Asian ecology: Loss of balance (1981)
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    Nature 294 (1981), S. 394-394 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Bangalore The increasing demand for wood for fuel in Nepal and Thailand is threatening the ecological balance of a large part of South Asia. In Nepal, deforestation is so rapid that it has been estimated that the country will be without forest by the year 2000. The lack of tree cover is already ...
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    Rhesus monkeys die (1981)
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    Nature 294 (1981), S. 395-395 
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    Notes: [Auszug] The University of Birmingham is being forced by financial and legal circumstances to kill most of its once thriving monkey colony. Unable to raise the £250,000 needed to bring its monkey housing up to present safety standards, the university has for the past two years been exploring the ...
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    Hoyle on life (1981)
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    Nature 294 (1981), S. 396-396 
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    Notes: [Auszug] SIR Surely there is some mistake in your summary of Hoyle's contention that the Universe has not been here long enough to permit the evolution of life forms of the complexity found on this planet (Nature 12 November, p. 105). It is true that the probability of chance assembly of the system of ...
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    No sense and nonsense and noses (1981)
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    Nature 294 (1981), S. 499-499 
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    Notes: [Auszug] The Doomsday Book of Animals: A Natural History of Vanished Species. By David Day. Pp. 288. ISBN UK 0-85223-183-0; ISBN US 0-670-27987-0. (Ebury Press/Viking: 1981.) £14.95, $40. After Man: A Zoology of the Future. By Dougal Dixon. Pp.124 ISBN UK ...
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    A potpourri of plucked patches (1981)
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    Nature 294 (1981), S. 398-399 
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    Notes: [Auszug] HAMILL, Marty, Neher, Sakmann and Sigworth1 and Horn and Patlak2 recently described new techniques for improved recording from single ion channels in biological membranes. They also showed how to excise the membrane patch under study, so that the experimenter can manipulate the solution bathing ...
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    More bickering about solar satellites (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 299-299 
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    Notes: [Auszug] Washington The National Aeronautics and Space Administration (NASA) seems unlikely to grant the request from the European Space Agency (ESA) to bring forward the launch of the International Solar Polar Mission, now due in 1986. ESA had made this request following NASA's decision to stop work on ...
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    British academics at the barricades (1981)
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    Nature 294 (1981), S. 300-300 
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    Notes: [Auszug] Genteel academic militancy reached boiling point last week, with a mass lobby of the British Parliament by some 10,000 university teachers protesting not merely at the British government's decision that the university budget should be cut but at the uncertainty .that remains about the arrangements ...
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    Soft X-ray imaging with a normal incidence mirror (1981)
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    Nature 294 (1981), S. 429-431 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Until now, designers of X-ray optical instruments such as telescopes and microscopes have been forced to use mirrors operating at small glancing angles 0 (6 = angle of incidence measured from the surface tangent)3'4. This is because the refractive index n = 1 - S of all materials is close to unity ...
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    Bacterial origin of East Australian continental margin phosphorites (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 442-444 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Phosphatic nodules and sediments were recovered by dredging and piston and box coring on the East Australian continental shelf and upper slope between 29 and 31 S at depths ranging from 210 to 450 m. In box cores, late Pleistocene to Holocene phosphatic nodules occur within unconsolidated sediments ...
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    Some help for the dudes and praise to the experts (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 500-500 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BIRDWATCHING beginners are badly served by publishers, their needs being met neither by the abundant field guides, which are mostly too wide-ranging and complex for the newcomer, nor by the glossy co-editions "packaged" to sell in several countries rather than to inform in one. One bright side to ...
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    Threats for British academic research (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 295-295 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mrs Margaret Thatcher, the British Prime Minister, was proudly telling the Parliamentary and Scientific Committee a year ago that the British government's spending on research had been "protected'' from the round of government economies then coming into effect. Will she be able to make the same ...
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    Epidemiology of the townsman's blight (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 677-677 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A "widespread general concern" about the scale and nature of change in the countryside is (in the words of Blacksell and Gilg) "a relatively recent post-war development"; but, as Sheail argues, "the inter-war period was so critical and innovative that precedents can be found for almost every aspect ...
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    Nasa budget: Small is necessary (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 298-299 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington As the National Aeronautics and Space Administration (NASA) locks horns with the Reagan Administration over just how large a budget cut it must face next year, US space scientists are trying to devise a strategy for exploring the Solar System within the tight budget constraints likely ...
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    Complete in vitro maturation of Plasmodium falciparum gametocytes (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 364-366 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Gametocyte production involves two distinct processes: an inductive process that commits certain asexual parasites to become gametocytes, and a developmental process that supports the full differentiation of these committed cells3. Gametocyte induction has been shown to occur more readily when the ...
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    US dispute on nuclear bomb safeguards (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 504-505 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington The State Department and the Nuclear Regulatory Commission (NRC) are drifting towards loggerheads on anti-proliferation safeguards. Both parties agree that the safeguards administered by the Vienna-based International Atomic Energy Agency (IAEA) need to be improved. The State ...
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    Is creation a science or a religion? (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 504-504 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Little Rock The state of Arkansas was accused on Monday morning of making "an unprecedented attempt to legislate what is science" at the opening of a trial over its efforts to determine how different theories of the origins of man should be taught in its public schools. The American Civil ...
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    Israeli education: More gloom (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 505-506 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tel Aviv The complaint that cuts in higher education could seriously endanger Israel's scientific potential in the 1990s ran through the symposium organized at the end of November by the Israeli popular science magazine Mada to celebrate its twenty-fifth anniversary. Ironically, the symposium ...
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    India's space programme: Now for real (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 507-508 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] New Delhi India entered a new phase in its development of a series of satellites for remote-sensing applications with the successful launching of its experimental satellite Bhaskara II, into a circular Earth orbit from the Soviet Union on 20 November. India's space programme for the 1980s includes ...
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    European environment: One log-jam ends (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 508-508 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Brussels The Council of EEC Environmental Ministers which met in Brussels on 3 December was remarkably successful, with agreement being reached on several previously contentious issues. The directive regulating discharges into the aquatic environment of mercury from the chlor-alkali industry was ...
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    Pakistan's space ambitions: A military option? (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 507-507 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Bangalore Pakistan looks set to embark upon an ambitious programme of space research with clear hints that the spur is the prospect of military applications in the long term. Dr Salim Mahamood, chairman of Pakistan's Space and Upper Atmospheric Research Commission (SUPARCO), while unveiling the ...
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    Erratum (1981)
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    Nature 294 (1981), S. 509-509 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nature must apologise to one or other (or both) of Sir Andrew Huxley (President of the Royal Society) and Professor T.R.E. South wood that the latter's photograph appeared last week in place of the former's. The Royal Society's anniversary celebrations this year appear to have been especially prone ...
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    Evolution writ small (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 382-383 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE are two ways in which evolution can be studied at the biochemical level. One is by the traditional comparative approach, epitomized 40 years ago by Baldwin's An Introduction to Comparative Biochemistry (Cambridge University Press, 1940). The other is through molecular genetics, following ...
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    All angles on contemporary cosmology (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 383-384 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EDWIN Hubble made a number of discoveries of fundamental importance in establishing our picture of the Universe, foremost amongst which was the realization that the Universe is expanding. On the simplest level of interpretation this astonishing fact demanded an origin for the Universe at a finite ...
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    Molecular stickiness and its consequences (1981)
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    Nature 294 (1981), S. 384-384 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE past year has seen the publication of several quite advanced and thought-provoking texts in physical biochemistry Spragg's The Physical Behaviour of Macromolecules with Biological Functions, Cantor and Schimmel's multivolume Biophysical Chemistry and Richards's more physically-inclined ...
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    Malaria debated (1981)
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    Nature 294 (1981), S. 388-388 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR It is generally agreed among malariologists that agricultural insecticides have made a contribution to selection for insecticide resistance in mosquitoes and that such resistance has made a contribution to the resurgence of malaria in Central America and South Asia. It is also generally agreed ...
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    Equity in research (1981)
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    Nature 294 (1981), S. 198-198 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Medical Research Council has helpfully made public the letter in which it has told British universities that they need not apply for research grants on behalf of department which are inadequately equipped (see page 201). By this means, universities will at least know where they stand. And it is ...
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    Useful tropical legumes (1981)
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    Nature 294 (1981), S. 516-517 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AMONG the many potential applications of research on recombinant DNA that are exciting commercial enthusiasm is the hope that cereal and other crops may be genetically engineered to fix their own nitrogen. This is a consummation devoutly to be wished, because current trends in the cost of energy ...
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    Animal committees (1981)
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    Nature 294 (1981), S. 204-204 
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    Notes: [Auszug] SIR Your article "Protection for laboratory animals?" (Nature 17 September, p. 173) presents a rational and realistic appraisal of the present dilemma concerning the ethical use of animals in experimentation being faced by the scientific community, the animal welfare community and the legislator. ...
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    … and ice cores (1981)
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    Nature 294 (1981), S. 211-212 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE THE 1960s, when it was recognized that a chronological history of the composition of the atmosphere is contained in the Antarctic ice sheets, ice drilling has featured strongly in most national programmes. Analysis of ice cores is now making it possible to reconstruct variations in past ...
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    A virus associated with human adult T-cell leukaemia (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 212-212 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RECENT virological, serological and epi-demiological evidence strongly indicates that a newly discovered retrovirus is the aetiological agent of certain types of adult T-cell lymphoma/leukaemia. The virological evidence first came from R.C. Gallo's laboratory at the US National Cancer Instititute1 ...
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    Pulmonary vein as an ectopic focus in digitalis-induced arrhythmia (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 582-584 
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    Notes: [Auszug] The recording arrangements in these experiments were similar to those reported previously5. Using male guinea pigs (300-400 g), intracellular recordings were made with glass micropipettes filled with 3 M KC1. All recordings were made at the distal end of the cardiac PV and the dorsal surface of the ...
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    Action of glutamate and aspartate analogues on rod horizontal and bipolar cells (1981)
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    Nature 294 (1981), S. 592-594 
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    Notes: [Auszug] Intracellular recordings were made in on-centre bipolar cells and horizontal cells of the virtually all-rod retina of the dogfish, Scyliorhinus canicula. Sectors of the dark-adapted eyecup were superfused with oxygenated elasmobranch Ringer's solution at pH 7.8 and 16 C. Equilibration time, after ...
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    Live issues: the classification of North American mammals (1981)
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    Nature 294 (1981), S. 597-597 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] E. RAYMOND Hall and Keith R. Kelson's compilation of the species-level taxonomy and geographical distribution of living North American mammals, published in 1959, has long been out of print. Now Hall has produced a partly corrected second edition, updated to 1977 and even beyond, but the new ...
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    Tolerance but no quarter for creationism (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 389-390 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The trial which opens in Arkansas next Monday on the state's decision to legislate for equal time in the school curriculum for creationism and Darwinian evolution will not be as dramatic an occasion as the trial of the Tennessee biology teacher, Mr John Scopes, in 1928. Then the issue was whether a ...
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    Intramolecular flexibility in phenylalanine transfer RNA (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 286-287 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The molecule is modelled on a computer by specifying the coordinates of all the atoms as determined crystallographically, the molecular topology (which atoms are bonded to each other) and a set of empirical energy functions6'7 for all the bond lengths, bond angles, dihedral angles, nonbonded ...
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    Life out there (1981)
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    Nature 294 (1981), S. 396-396 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR It was interesting to read in juxtaposition Dr Zuckerman's review of the extraterrestrial issue and Professor O'Neill's review of Rood and Trefill's new book on the same subject (Nature 5 November, pp.10, 25). One is struck again by the fascination not to say fixation that earlier and "young ...
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    T lymphocytes: repertoire and recognition (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 399-400 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ANY discussion of T cell immunology sooner or later leads to controversy. Although T cells, like B cells, are capable of recognizing foreign antigens with exquisite specificity, the nature of their activation is far less well understood. First, they are a heterogeneous population pursuing both ...
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    The geological exploration of Tibet (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 403-404 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OWING to its unique physiography, geographical location and culture, the Tibetan Plateau has long attracted international scientific interest. Tibet owes its uniqueness to its very high elevation ( 5 km above sea level), its vast areal extent (-2.5 million km2) and its position in the rain shadow ...
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    Antibodies to left-handed Z-DNA bind to interband regions of Drosophila polytene chromosomes (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 417-422 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Antibodies which are specific to the Z–DNA conformation have been purified and characterized on the basis of their binding to three different DNA polymers which can form this left-handed helix. These antibodies bind specifically to polytene chromosomes of Drosophila melanogaster as visualized ...
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    Recurrent Seyfert activity in spiral galaxy nuclei (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 427-429 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Molecular line observations of the central region of our Galaxy have revealed some 107-108 M of interstellar gas in the inner 200 pc concentrated in massive molecular clouds (ref. 3 and refs therein). The 2.6-mm emission line of carbon monoxide has been particularly useful in mapping the ...
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    Late Precambrian Keweenawan asymmetric reversals (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 436-439 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] First we assume that the geomagnetic field during Keweenawan time consisted of an axial geocentric dipole (main dipole, MN, R) and an axial offset dipole (m) (see also refs 12-14). The geocentric dipole has two polarity states, normal and reversed (Fig. 2). The magnetic dipole moments^during these ...
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    Page charges (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 106-106 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR ? Frank Close's review of high-energy physics journals in Nature 1 October (p.369) reveals a misconception that may be widespread enough to warrant correction in public. I refer to his statement that "in times of financial stringency European authors are often unable to publish there [in ...
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