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  • Nature Publishing Group  (3,534)
  • American Institute of Physics (AIP)
  • 2000-2004
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  • 1975-1979  (3,534)
  • 1978  (3,534)
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  • 2000-2004
  • 1995-1999
  • 1975-1979  (3,534)
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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 676-676 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A. G. OGSTON COMMENTS-How did I come to make my original discovery? My undergraduate training was in pure chemistry, with a strong preference for physical chemistry, and my first research was on the conductivities of dilute electrolyte solutions in Sir Harold Hartley's laboratory in Balliol. It was ...
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  • 2
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 694-695 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Simple calculations show that the number of possible frequency channels is so large that a search is not realistic, and we can assume that another party wishing to communicate would also consider this unpractical. Thus we need to predict the other party's decisions, and we can rely only on the ...
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  • 3
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 697-698 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To obtain a quantitative measure of surface located iron metal, a mild specific leaching agent was used. Although X-ray photoelectron spectroscopy (XPS)6,7 may distinguish between Fe(II) and Fe(0) at depths 〈 20 Å, this technique is not quantitative. Fe(0) is readily dissolved in a ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 705-707 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] All four fossils were recovered from quarries in unconsoli-dated channel sands of the 'Upper Fossil Wood Zone', Jebel Quatrani Formation. This formation has been radiometrically dated as 〉26 Myr old5. All four bones are undistorted but broken so that they preserve varying portions of the distal ...
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  • 5
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 703-704 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Worked flint is the most abundant source of evidence for human activity before the advent of pottery-making cultures, and any information which can be deduced from it regarding its technology and date of fabrication is of considerable archaeological interest. Excavations frequently produce flint ...
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  • 6
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 707-708 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Scanning electron micrographs showing two views of conjoined twin isolated on the twelfth day from a female injected with vincristine sulphate on the seventh day of gestation. A single head and thorax and two complete vertebral columns may be seen. A small round mass of tissue (arrowed) was ...
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  • 7
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 713-715 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Agglutinin titres of anti-C4, anti-C3, anti-Ch and anti-Rg with red cells coated with complement Source of complement Ch, Rg phenotype LIS % sucrose Anti-C4c Anti-C4d Antiserum Anti-C3b Anti-C3d Anti-Ch Anti-Rg EDTA plasma Ch+,Rg + 10 0 0 0 0 0 0 ACD plasma Ch+,Rg + 10 〉 10,000 〉 1,600 〉 ...
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  • 8
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The specificity of the isolated antibodies was tested in indirect immunoprecipitations7 of radioactive cell membrane glycoproteins8. SDS-polyacrylamide gel electrophoresis9 of precipitated molecules derived from guinea pig splenocytes, intestine epithelial cells, salivary gland epithelial cells and ...
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  • 9
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 720-721 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Actin was purified from an acetone powder prepared from Physarum plasmodia. A low salt extract was chromatographed on deoxyribonuclease I immobilised on Sepharose 4B as described elsewhere5,8. The resulting actin preparation was at least 95% pure as judged by polyacrylamide gel electrophoresis in ...
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  • 10
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 726-728 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Supernatant media collected from the human breast cancer cell line MCF-7 (ref. 7) were tested for bone-resorbing activity by culture with live and killed fetal rodent long bones previously incorporated with 45Ca or 3H-proline. The assay system for live bones has been described in detail ...
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  • 11
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 731-733 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 a, Effect of Gd III on the reduced viscosity of actin in the absence of KCl. Reaction conditions are: 0.2 mM ATP; 0.5 mM -mercaptoethanol; 2 mM PIPES at pH 6.95; 25 C; GdCl3 added at the molar ratios indicated on the abscissa. As Gd in III binds to ATP the amount stated was that in excess of ...
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  • 12
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 548-549 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE EARTH is dominated by insects: they are present in staggering numbers (a billion billion, according to one estimate) and they are found in every habitable part of the globe. There is a greater diversity of insects than of any other group of animals, and they occupy many different, but ...
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  • 13
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    Nature 276 (1978), S. 551-551 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CHARTER-77, the Czechoslovak human rights movement, last week entered the nuclear debate, with an expose of conditions at the Jaslovske Bohunice power station. According to Document 22 of the Charter movement (distributed abroad by the Palach press), employees at the power station have been ...
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  • 14
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    Nature 276 (1978), S. 553-553 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ? Birmingham University to be prosecuted: The UK Health and Safety Executive is to prosecute Birmingham University following the smallpox outbreak from the medical school last August which led to the death of Mrs Janet Parker, a medical photographer, and was followed by the suicide of Professor ...
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  • 15
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    Nature 276 (1978), S. 556-556 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,.-At the recent Seventh International Congress of Pharmacology in Paris, Dr G. Reggiani of the Hoffman-La Roche Medical Board presented a communication on the clinical features of the July 1976 TCDD accident in Seveso. The Mario Negri Institute have closely followed many aspects of the ...
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  • 16
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 562-562 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE article on page 577 of this issue by Strausberg and his colleagues from Dallas will rekindle interest in a longstanding problem in the mitochondrial field, namely the mechanism of recombination between mitochondrial DNA molecules. Mitochondrial genetics is dominated by work on bakers' yeast, ...
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  • 17
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 561-562 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SPRING and autumn are the seasons of the rapid burster. This object produces up to several thousand X-ray bursts per day over intervals of 2-6 weeks in March/April and September/October. Its location near the Galactic Centre means that each burst, of but a few seconds duration, emits in X-rays as ...
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  • 18
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 562-563 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PROTOPLASTS prepared from tobacco leaves now form the staple experimental diet of investigators studying viral infection, somatic hybridisation, wall synthesis, properties of the plasma membrane-the list goes on-but the intriguing fact goes almost unnoticed that in the process of removing the cell ...
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  • 19
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    Nature 276 (1978), S. 565-570 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The bithorax gene complex in Drosophila contains a minimum of eight genes that seem to code for substances controlling levels of thoracic and abdominal development. The state of repression of at least four of these genes is controlled by cis-regulatory elements and a separate locus (Polycomb) seems ...
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  • 20
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    Nature 276 (1978), S. 594-595 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On 16 March 1977, at 2304 GET a liquid helium cooled far IR grating spectrometer was launched aboard a Skylark 7 rocket from Andoya, Norway, as part of the payload AI/II-PHA-F4D of the 'Polar High Atmosphere' rocket campaign (see ref. 1 for details). During the flight the geomagnetic field was ...
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  • 21
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    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 595-596 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Annealed polycrystalline targets electropolished to a high surface finish were irradiated at room temperature to a level of approximately 4 1017 He ions cm-2 with the ion beam normal to the surface. The main study was of copper, for which the mean projected range and r.m.s. spread in projected ...
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  • 22
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    Nature 276 (1978), S. 616-618 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Effect of acute bilateral infusion into the ventral tegmental area of isotonic saline (----) or substance P (- - - - ) on whole body locomotor activity measured in photocell cages. The ordinate indicates the mean photocell counts+ s.e.m., the abscissa indicates time by 10-min periods. Arrow, ...
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  • 23
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    Nature 276 (1978), S. 611-612 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Homoeotic genes act at one of several possible stages in development to bring about the observed phenotypic changes3. They could alter the initial determination of the cells, so that early in development, around blastoderm formation, when cells are becoming committed to follow specific pathways in ...
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  • 24
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    Nature 276 (1978), S. 648-649 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE latest of the Collins' Field Guides- A Field Guide to the Reptiles and Amphibians of Britain and Europe (Collins: London, £4.95) by E. N. Arnold and J. A. Burton-is a perfect gem, a delight to the eye and a pleasure to handle-a fine, solid, book with a well designed and illustrated, ...
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  • 25
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    Nature 276 (1978), S. 650-651 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WILDFLOWER BOOKS in Britain are now proliferating at a rate which almost matches that of bird books. This is indicative of a large and growing market among adult amateur naturalists as well as among the more enthusiastic element within school and university classes. It is not easy to classify ...
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  • 26
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    Nature 276 (1978), S. 430-430 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIGNIFICANT changes in procedures for regulating research involving re-combinant DNA techniques are Soon to be announced by the US National Institutes of Health (NIH). In particular, there will be greater public participation in both local biosafety commutees and the NIH's JKecom-binant DNA ...
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  • 27
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    Nature 276 (1978), S. 652-653 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Understanding Holography. By MichaelWenyon, Pp. 176. (David and Charles: Newton Abbot and London, 1978.) £5.50. THIS book is intended for the general reader and starts with two chapters about light and the laser in which various ideas relating to waves, coherence, interference, stereoscopic ...
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  • 28
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    Nature 276 (1978), S. 649-649 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] "KILL not the moth nor butterfly" wrote Blake, and three recently published books reviewed here echo his sentiments, though they are in defence of conservation (or just sheer artistry) rather than because "the Last Judgment draweth nigh". All three have superb illustrations and none refers to the ...
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  • 29
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    Nature 276 (1978), S. 651-651 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A Field Guide to the Orchids of Britain and Europe with North Africa and the Middle East. By J. G. Williams, A. E. Williams and N.Arlott, Pp.176. (Collins: London, 1978.) £4.95 SOONER or later, most amateur botanists reach a point the popular, general floras seem not to describe their latest ...
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    Nature 276 (1978), S. 429-429 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LORD ROTHSCHILD, speaking on British television last week, argued that we should develop a table of risks so we could compare, say, the risk of our dying in an automobile accident with the risk of Baader-Mednhoff guerillas taking over the nuclear reactor next door. Then we would know how seriously ...
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  • 31
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    Nature 276 (1978), S. 480-480 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Caswell suggested, based on positional coincidence to 0.5 arcs, that a red object of about 19 mag was identical with the source of radio emission. Inspection of the Palomar Sky Survey shows that the object is diffuse on the red plate, and invisible on the blue plate. The entire region near G127.1 + ...
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  • 32
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    Nature 276 (1978), S. 438-438 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-Your articles on the European Space Agency (ESA) (5 October, page 355) are timely as its activities and those of its predecessor (ESRO) have not been widely known to the European scientific community: the present discussions within ESA of future programmes are greatly hampered by this ...
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  • 33
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    Nature 276 (1978), S. 440-440 
    ISSN: 1476-4687
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    Notes: [Auszug] THE growth in recent years of heavy ion physics, in which target nuclei are bombarded with nuclei accelerated in a heavy ion accelerator, has led to many interesting new phenomena in nuclear physics, but as is often the case with a new field of study, has introduced many new problems. Among the ...
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    Nature 276 (1978), S. 442-442 
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    Notes: [Auszug] THE successful investigation of any organ system involves many different disciplines. This was especially evident at a recent symposium on the 'Skin of Vertebrates'* held recently in London. R. J. Roberts (University of Stirling) and A. Bullock (Scottish Marine Biological Association, Oban) ...
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    Nature 276 (1978), S. 443-443 
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    Notes: [Auszug] THE analysis of pollen grains from samples of honey is now a commonly used technique for determining what plants are used by foraging bees. It has recently been put to a rather unexpected use by Dickson (Antiquity 52, 108; 1978) in the analysis of materials from a Scottish Bronze Age barrow at ...
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    Nature 276 (1978), S. 444-445 
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    Notes: [Auszug] IT is now generally acknowledged that the polycyclic aromatic hydrocarbons are not directly carcinogenic but are metabolised in vivo to short-lived reactive species that bind to cellular macromolecules, initiating cancerous processes in some way. Most evidence indicates that DNA is the critical ...
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    Nature 276 (1978), S. 453-459 
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    Notes: [Auszug] We show that if the Universe expands forever, it will become increasingly irregular in the far future. In particular, we demonstrate that the Hawking black hole evaporation process causes a vortical instability to develop in spatially homogeneous spacetimes which are approximately k = 0 Friedmann ...
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    Nature 276 (1978), S. 461-466 
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    Notes: [Auszug] The reconnection, with the world ocean, of temporarily isolated ocean basins results in injection either of hyper-saline waters favouring abyssal stratification and stagnation, or of brackish Waters from high latitudes leading to a low salinity surface layer. Mass extinctions and sudden climatic ...
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    Nature 276 (1978), S. 478-479 
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    Notes: [Auszug] The observations were obtained with the IUE at the low resolution mode (D? 6 Å) over the entire wavelength range 3,200-1,150 Å. The spacecraft, its instrumentation, and the performance of the telescope, spectrograph and the SEC cameras are described elsewhere8,9. The reddened star is ...
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    Nature 276 (1978), S. 485-487 
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    Notes: [Auszug] Fig. 1 Electrical conductivity and compressional wave velocities for a saturated (0.5 M NaCl) sample of ultramafic rock as a function of temperature. The electrical conductivity is described by the solid line and compressional velocity by triangles, inverted for decreasing temperature. The ...
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    Nature 276 (1978), S. 491-492 
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    Notes: [Auszug] The samples used were pillow basalts from Hole 417D, which contained only limited alteration minerals and had widespread fresh glass4,5. Glassy rims of the Cretaceous pillow basalt cores, designated 22-3/24-27, 28-5/85-92, and 29-6/95-104, were investigated for rare-gas composition. (Detailed ...
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    Nature 276 (1978), S. 498-500 
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    Notes: [Auszug] Table 1 Effect of agrocin 84 on in vitro transformation of habituated tobacco cells by A. tumefaciens Nopaline content of extracts Tumour development on tobacco plants Callus tissue Cell medium Strain (% dry wt) (µgml-1) C58 0.35 〈 0.04 + C58 〈 0.01 〈 0.04 - ...
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    Nature 276 (1978), S. 540-540 
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    Notes: [Auszug] PREVIOUS volumes in this series have contained four or five articles, but this one contains only three, albeit rather longer, contributions. "Relationships in the structure and function of receptors for glycoprotein hormones, bacterial toxins and interferon" by L. D. Kohn is a contribution central ...
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    Nature 276 (1978), S. 542-542 
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    Notes: [Auszug] THERE is a real need for examples of national programmes that actually work within the economic restraints of developing countries. Development should benefit people, and the best measure of an improved quality of life is the elimination of malnutrition, which results pimarily from poverty and ...
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    Nature 276 (1978), S. 545-546 
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    Notes: [Auszug] Applied biology ANDERSEN, K. Lange, MASIRONI, R., RUTENFRANZ, and SELIGER, C. In collaboration with DEGRE, S., TRYGG, K., and ORGIM, M. Habitual Physical Activity and Health. (WHO Regional Publications. European Series No. 6.) Pp.188. ISBN-92-9020-106.1. (Copenhagen: WHO, Regional Office for ...
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    Nature 276 (1978), S. 311-311 
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    Notes: [Auszug] BRITAIN'S Science Research Council is no longer so worried about money, but is finding itself with another problem: manpower. The chairman of the SRC, Professor Geoffrey Allen, said last week that "the manpower problem is preventing us from diversifying". Professor Allen was presenting a fairly ...
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    Nature 276 (1978), S. 379-381 
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    Notes: [Auszug] The diamonds analysed were classified into the different types using infrared and ultraviolet spectral characteristics, and conductivity measurements. Diamonds 1 to 6 (Table 1) were flawless light yellow octahedra. In all the other diamonds inclusions and flaws were visible at 50 magnification ...
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    Nature 276 (1978), S. 385-386 
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    Notes: [Auszug] The loss of most common volatile components increases the viscosity of silicate melts1,2, and this has been cited as a cause of moderate changes in the viscosity of lava flows3. However, an even more important consequence of gas loss is a sudden undercooling of the lava triggering an all-pervasive ...
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    Nature 276 (1978), S. 393-394 
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    Notes: [Auszug] Peripheral blood lymphocytes (PEL) were separated from heparinised whole blood by Ficoll-Hypaque centrifugation (FHC)16. T lymphocytes were isolated from PBL by rosette formation with sheep red blood cells (SRBC) and sedimentation on FHC17. The lymphocytes from the SRBC pellet (after lysis of SRBC) ...
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    Nature 276 (1978), S. 401-402 
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    Notes: [Auszug] Fig. 1 Autocorrelation functions of ACh-induced current fluctuations recorded from voltage-clamped endplates of rat soleus muscle on postnatal days 8 (o) and 18 (O). Data points represent value of autocorrelation function f(T) for different time intervals T. Mean ACh-induced currents were I = 25 nA ...
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    Nature 276 (1978), S. 407-409 
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    Notes: [Auszug] Table 1 Effect of chronic ethanol treatment on specific binding of 3H-DHA to b-adrenergic receptors in brain and heart particulate fractions Time after termination of ethanol Brain Heart treatment Ethanol- Ethanol- (h) Control treated Control treated 0 ...
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    Nature 276 (1978), S. 206-207 
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    Notes: [Auszug] THE seventh International Conference on the Unity of Sciences (ICUS VII) will take place in Boston, Mass., 24-26 November, 1978. No other series of scientific conferences has engendered so much passion, largely because these conferences have been financed and run by the International Cultural ...
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    Nature 276 (1978), S. 209-210 
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    Notes: [Auszug] CERAMIC objects-crockery, fine porcelain, furnace tubes, insulators-are made by starting from a powder, binding it (with water or adhesive), sometimes pressing the mass and then firing. The bulk of the powder never melts (though part of it may); by a series of physical processes including bulk and ...
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    Nature 276 (1978), S. 208-208 
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    Notes: [Auszug] SIR,-I was most interested in your editorial comments of 20 July and feel constrained to address some of the inconsistencies they contain. In the first place, the separation of scientists from "the others" in terms of their ability to discuss values and human judgments and to deal with "convergent" ...
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    Nature 276 (1978), S. 213-214 
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    Notes: [Auszug] JUST what is the meaning of climatology as a discipline, and what qualifications or interests does one have to have in order to contribute to climatology? The recent conference 'Evolution of Planetary Atmospheres and Climatology of the Earth' in Nice* emphasised, perhaps more strongly than any ...
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    Notes: [Auszug] 2A1822 -371(/II = 356, bll = -11): data were accumulated in scans across 2A1822 - 371 for a total of 59 orbits, from 25 to 29 September 1977 UT, when the source was within ±2 of the HEAO 1 scan circle. The source was detected at 14.7s above background in the 30 arc s collimator (MCI) and at ...
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    Nature 276 (1978), S. 289-290 
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    Notes: [Auszug] Fig. 1 Time course of production of 1,2-diacylglycerol and phosphatidate in human RBCs exposed to phospholipase C. Outdated human RBCs were washed and prelabelled for 90 min at 37 C with 32P-Pi (10 µCi ml-1) at a cell concentration of 2 109 ml-1 in a HEPES-buiTered Ringer solution as ...
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    Nature 276 (1978), S. 269-270 
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    Notes: [Auszug] Sp2/0-Ag14 was isolated as a re-clone of Sp2/HL-Ag, itself derived in several steps from Sp2/HLGK, a hybrid between a B ALB/c spleen cell contributing a g 2b (H) and k (L) chain with anti-sheep red blood cell activity and the myeloma cell line X63-Ag8 (g (G) and k (K))2. Sp2/0-Agl4 is resistant to ...
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    Nature 276 (1978), S. 276-277 
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    Notes: [Auszug] Fig. 1 Rate of DNA synthesis and appearance of newly synthesised proteins in the nuclei of n-butyrate-treated F4N cells. Ostertag's erythroleukaemic mouse spleen cell line F4N was used2 and cells were kept in culture conditions described previously10. For induction of the erythropoietic ...
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    Nature 276 (1978), S. 283-284 
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    Notes: [Auszug] Fig. 1 Increase in antidromic excitability of a single mandibular canine tooth pulp (TP) afferent ending in trigeminal nucleus caudalis produced by conditioning stimulation of PGM (?), NRM (O), maxillary canine TP (?) and mandibular skin (?). At each conditioning-test interval, the incidence of a ...
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    Nature 276 (1978), S. 291-292 
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    Notes: [Auszug] Isolates from monkeypox virus population clones identical with whitepox viruses were shown to be stable and did not change their properties with serial passages on the chorioallantoic membrane of developing chick embryos2. As cloning is an artificial laboratory procedure we attempted to determine ...
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    Nature 276 (1978), S. 304-304 
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    Notes: [Auszug] TEXTS that tell you how to do things, whether they be cookery books or manuals of bee-keeping or motorcycle maintenance, can be valuable both for the experienced and for the novice; they also have a particular fascination for the voyeur, who has no intention of actually keeping bees or maintaining ...
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    Nature 276 (1978), S. 123-124 
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    Notes: [Auszug] Evolution of Sex. By John Maynard Smith, Pp.222.(Cambridge University Press: Cambridge and London, 1978,) Hardback £9.50; paperback £2.95. "WHAT song the syrens sang or what name Achilles assumed when he hid himself among women, though puzzling questions, are not beyond all ...
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    Nature 276 (1978), S. 186-188 
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    Notes: [Auszug] Thirty male albino rats (Charles River) weighing 225-275 g were used. The animals were anaesthetised with chloral hydrate (400 mg per kg, intraperitoneally) and mounted in a stereotaxic instrument. Morphine tolerance and dependence were induced by the method of subcutaneous pellet ...
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    Nature 276 (1978), S. 194-195 
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    Notes: [Auszug] As shown in Fig. 1 a, 8Br-cyclic-AMP (up to 1 mM) does not inhibit the rate of cell division in this neuroblastoma culture but, in fact, below 0.3 mM produces an increase in the cell division rate (150-160% of control). In contrast, both dibutyryl-cyclic-AMP (Bt2-cyclic-AMP) and Na butyrate inhibit ...
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    Nature 276 (1978), S. 147-148 
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    Notes: [Auszug] Revolution in Miniature: The History and Impact of Semiconductor Electronics. By E. Braun and S. MacDonald. Pp. 231. (Cambridge University Press: Cambridge and London, 1978.) £8.50. "AN integrated circuit is a truly awe-inspiring achievement of human inventiveness". So say the authors of ...
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    Nature 276 (1978), S. 148-149 
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    Notes: [Auszug] Man and the Stars. By Hanbury Brown. Pp.182. (Oxford University Press/Clarendon: Oxford and New York, 1978.) £5.95; $14.95. PROFESSOR Hanbury Brown explains in the preface how he came to write this book: For fifteen years I have run an astronomical observatory in the Australian Bush ...
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    Nature 276 (1978), S. 153-156 
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    Notes: [Auszug] The hydration of obsidian is studied by measuring hydrogen concentration profiles of natural samples hydrated at 90°C, using the 15N resonance nuclear reaction method. The results of this study are well reproduced by the interdiffusion model of Doremus. The importance of the ...
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    Nature 276 (1978), S. 165-167 
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    Notes: [Auszug] Strong whistler-mode signals were received on 10 September 1973 from 13.00 to 13.30 UT showing both linear and nonlinear amplification as reported elsewhere5, and from 19.40 to 20.30 UT where only linear amplification occurred. Various transmission formats were sent, and the received phase at ...
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    Nature 276 (1978), S. 171-172 
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    Notes: [Auszug] The causes of long-term (months, years) variations in sea level have been enumerated by Montgomery6, and Lizitzin7. These are: (1) meteorological (atmospheric pressure, wind, precipitation and evaporation); (2) oceanographic (water density and currents); (3) river discharge; (4) the eustatic ...
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    Nature 276 (1978), S. 176-178 
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    Notes: [Auszug] Table 1 Characterisation of Ia+ cells in human bone marrow with membrane markers Regenerating(6yr) Source of bone marrow Adult (61yr) Fetus (19 weeks) (off treatment for ALL) Total* Small* Large* Total Small Large Total Small Large Cells reacting with: ...
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    Nature 276 (1978), S. 182-184 
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    Notes: [Auszug] Four groups of mice were studied. Group 1 (n = 4) received five daily i.p. injections of SZ (40 mg per kg body weight). Group 2 (n = 6) received five daily injections of SZ and, in addition, i.p. ALS, 0.25 ml three times daily for a total of 5 weeks, including the period when SZ was administered. ...
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    Nature 276 (1978), S. 190-191 
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    Notes: [Auszug] We examined the effects of morphine and the opioid peptide b-endorphin on the release of immunoreactive insulin, glucagon and somatostatin from the isolated perfused dog pancreas. We used the preparation of Iversen and Miles7, in which the pancreas is perfused without recirculation at a rate of 20 ...
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    Nature 276 (1978), S. 7-7 
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    Notes: [Auszug] THE Association of Scientific, Technical, and Managerial Staffs (ASTMS), which called a meeting on genetic engineering last Friday, has its eye on health and safety in university laboratories. Laboratories in the health service are not left out either. "Freedom of research," says ASTMS health and ...
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    Nature 276 (1978), S. 7-7 
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    Notes: [Auszug] 'RECOMBINANT DNA' means different things to different people. Although it is now almost universally associated with the techniques of in vitro genetic manipulation, confusion can still arise when the term is loosely applied. (As in some comments on the cause of the recent case of smallpox in ...
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    Nature 276 (1978), S. 10-10 
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    Notes: [Auszug] SIR,-In reply to Dr Halstead's article (26 October, page 683) I would like to say that in my view it is a mistake to suggest that the museum must be either a popular or elitist place. There can be no rigid dichotomy and it is our stated aim to attract an audience representative of the public as a ...
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    Nature 276 (1978), S. 97-98 
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    Notes: [Auszug] STABLE, rather than radioactive, tracers are being used in metabolic studies, and Lyon and Baxter1 have reported "natural baseline" carbon isotope ratios from human tissue samples. The use of natural isotope ratios is also an area of active research interest because of the ecological and ...
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    Nature 276 (1978), S. 16-17 
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    Notes: [Auszug] UNTIL a few years ago, Uranus was known chiefly as the first planet to be discovered in modern times, and for its remarkable axial tilt, which puts the axis nearly in the orbital plane. Even the radius, and therefore the mean density, was not accurately established until 1970, when balloon-borne ...
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    Nature 276 (1978), S. 24-28 
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    Notes: [Auszug] Ge/Si and Ga/Al variations emphasise the distinct chemical nature of the mantle present beneath Iceland as compared with the Reykjanes Ridge. Generation of basalts at greater depth beneath Iceland than the ridge is ...
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    Notes: [Auszug] Cloned β-globin genes of both mouse and rabbit each contain a large and a small intervening sequence (intron) of about equal length at precisely the same positions relative to the coding sequence. The homologous introns show some sequence similarity, particularly at the junctions with the ...
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    Nature 276 (1978), S. 50-51 
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    Notes: [Auszug] Hutchinson3 has presented an asymptotic small scale-yielding solution for the stress distribution at a crack tip in a material obeying the Ramberg-Osgood4 stress strain law e/ey = s/s+a(s/sy)N where s is strain, or stress, with the subscript y giving yield values, a a numerical constant, and N the ...
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    Nature 276 (1978), S. 73-75 
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    Notes: [Auszug] The feather-winged beetles Ptinella aptera (Guerin-Mene-ville) and P. errabunda Johnson, belong to a taxonomically varied group of insects found in the subcortical habitat of rotting wood. The distribution and durability of this habitat is irregular and unpredictable3 and its supply of resources, ...
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    Nature 276 (1978), S. 88-90 
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    Notes: [Auszug] Fig. 1 Specific inhibitory activity of 2-5A on protein synthesis in vivo. BHK-21 cells (supplied by D. Pickup, National Institute for Medical Research) were grown in monolayer culture in Sterilin flasks and tissue culture dishes in Dulbecco's modified Eagle's medium containing 10% calf serum (Flow) ...
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    Nature 276 (1978), S. 94-95 
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    Notes: [Auszug] The effect of oxidative cycles of aidolase on the activity of GAPD is shown in Fig. 1. Concomitant with the aldolase-catalysed formation of hydroxypyruvaldehyde phosphate, GAPD is rapidly inactivated. However, this rapid inactivation is not observed when any component necessary for ...
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    Nature 276 (1978), S. 97-97 
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    Notes: [Auszug] EL-SAYED COMMENTS-The above authors quoted data included in my Tables 1 and 2 which appeared in Balech et al.1. Unfortunately the units of nutrient concentrations were incorrectly printed as µg l-1. However, the maps in that folio showing surface phosphates and silicates (but not the nitrates ...
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    Nature 276 (1978), S. 99-99 
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    Notes: [Auszug] THE 'atmosphere' of a star is a thin surface layer that is of importance for two fundamental reasons: (a) it is the part that can be seen from outside and thus gives information on the fundamental stellar parameters of effective temperature, surface gravity and chemical composition which in turn ...
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    Nature 276 (1978), S. 92-94 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Maxam-Gilbert17 procedure for chemical cleavage for DNA sequence of the fragment from HinfI site (labelled with 32P) to EcoRI* site (see Fig. 3). The 342-base pair fragment eluted from gel was first digested with MboI yielding 52- and 290-base pair fragments; the eluted 290-base pair ...
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  • 88
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    Nature 275 (1978), S. 748-749 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Because it has not been known whether Tfm/Y mice without Ohv possess microscopic epididymides, I examined such adults (6-33 weeks). As the Ohv chromosome carries the blotchy (Bio) mutation, mice with Bio (n = 3) and without (n - 2) were studied. They were bred from stock obtained from U. Drews, ...
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    Nature 275 (1978), S. 758-760 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Leakage of 3H-sucrose from liposomes Ca2+ Mg2+ Control - 94.6 - 0.1 88.6 94.1 1 37.9 88.5 10 1.3 13.7 % of total radioactivity remaining associated with liposomes after incubation with divalent cations (mM) for 1 h. The higher divalent cation concentrations caused an ...
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  • 90
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    Nature 275 (1978), S. 698-698 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a lately-issued number of the Proceedings of the American Philosophical Society, Prof. Cope has given an account of the collection of fishes made by Prof. Orton at various points on the head-waters of the Amazon. Species of the genera Belone and Tetrodon- characteristically marine forms-are here ...
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  • 91
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    Nature 275 (1978), S. 706-711 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The distribution of the Tertiary and Lower–Upper Cretaceous sediments in part of the northern continental margin of the Bay of Biscay, has been mapped. Three sedimentary sequences are indicated by the seismic ...
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  • 92
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    Notes: [Auszug] The + Y axis instruments of the HEAO 1 satellite were pointed at SS Cygni for two orbits on 16 December 1977, when it was in an optical low state. The modulation collimator (MC) experiment data were binned6 about the position of SS Cygni. We used only one orbit of data ( l h of observing time) ...
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  • 93
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    Nature 275 (1978), S. 697-697 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] "SUDDENLY, pear blossom on every tree/As though the wind of Spring came upon us last night." With these words so welcome to a people that has just passed a long and dreary Winter in science (see Nature, 274, 834; 1978), a new Chinese journal, Ziran Zazhi, greets the world. Ziran Zazhi means simply ...
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    Nature 275 (1978), S. 704-706 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] The possibility of doing point source neutrino astronomy is discussed. Probable sources include galactic nuclei, Seyferts, quasars, radio galaxies, pulsars and ...
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  • 95
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    Notes: [Auszug] The SAS 3 RMC data alone do not allow a unique spectral fit. Fortunately, data from HEAO l, (R. F. Mushotzky, personal communication) give a photon number index y = 1.8 ± 0.1 and a hydrogen column density of NH = 3 ± 1 1022 cm-2 for a power law spectrum extending to about 35 keV. ...
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  • 96
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    Nature 275 (1978), S. 725-726 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We assume that at least some of the pulsars emit a fair fraction (〉1%) of their energy in the form of high energy protons (1013 〈 Ep 〈 1016 eV). This energy range is consistent with the upper limit5 of the potential near the star Vmax = 1016 (E/1012 G) (O/200 s-1)2 V (D where B is the ...
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    Nature 275 (1978), S. 731-733 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The samples studied were taken by a group from the Laboratoire de Glaciologie de Grenoble during the recent successful recovery of a 900-m ice core at Dome C in East Antarctica7. During the coring operation, a certain amount of meltwater occurs. This water was recovered and passed through cation ...
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    Nature 275 (1978), S. 736-737 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Ramnagar sediments contain fauna characteristic of the Chinji Formation of the Lower Sivaliks. These deposits can be correlated biostratigraphically with the Vindobonian of Europe and possibly the Fort Ternan deposits of East Africa3 which have been assigned a potassium-argon date of 12-14 Myr. ...
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    Nature 275 (1978), S. 743-744 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Six Myotis lucifugus (the little brown bat) with an average maximum wingspan of 23 cm were tested in a room 4.6 m long, 2.2 m wide and 2.1 m high. A wooden frame containing six vertically strung nylon monofilament lines or steel wires (the obstacles) was placed in the centre of the room. The total ...
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    Nature 275 (1978), S. 749-751 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Comparison of chloroplast gene transmission patterns in zygospores and vegetative zygotes of C. reinhardtii Chloroplast gene transmission in zygospores: a, the chloroplast streptomycin-resistance mutation, Sr (shaded circles) is transmitted to all four meiotic products by greater than 90% of ...
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