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  • Nature Publishing Group  (3.059)
  • 2000-2004  (8)
  • 1950-1954  (3.051)
  • 1920-1924
  • 2000  (8)
  • 1952  (3.051)
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  • 2000-2004  (8)
  • 1950-1954  (3.051)
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  • 1
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    Nature Publishing Group
    In:  Nature, 407 (6801). pp. 171-174.
    Publikationsdatum: 2017-01-04
    Beschreibung: The onset of the Palaeocene/Eocene thermal maximum (about 55 Myr ago) was marked by global surface temperatures warming by 5–7 °C over approximately 30,000 yr (ref. 1), probably because of enhanced mantle outgassing2, 3 and the pulsed release of approx1,500 gigatonnes of methane carbon from decomposing gas-hydrate reservoirs4, 5, 6, 7. The aftermath of this rapid, intense and global warming event may be the best example in the geological record of the response of the Earth to high atmospheric carbon dioxide concentrations and high temperatures. This response has been suggested to include an intensified flux of organic carbon from the ocean surface to the deep ocean and its subsequent burial through biogeochemical feedback mechanisms8. Here we present firm evidence for this view from two ocean drilling cores, which record the largest accumulation rates of biogenic barium—indicative of export palaeoproductivity—at times of maximum global temperatures and peak excursion values of delta13C. The unusually rapid return of delta13C to values similar to those before the methane release7 and the apparent coupling of the accumulation rates of biogenic barium to temperature, suggests that the enhanced deposition of organic matter to the deep sea may have efficiently cooled this greenhouse climate by the rapid removal of excess carbon dioxide from the atmosphere.
    Materialart: Article , PeerReviewed
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  • 2
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    Nature Publishing Group
    In:  Nature, 403 (6765). p. 38.
    Publikationsdatum: 2017-07-06
    Beschreibung: Living coelacanths (Latimeria chalumnae) are normally found only in the western Indian Ocean, where they inhabit submarine caves in the Comores Islands. Two specimens have since been caught off the island of Manado Tua, north Sulawesi, Indonesia, some 10,000 kilometres away. We sought to determine the ecological and geographic distribution of Indonesian coelacanth populations with a view to drawing up conservation measures for this extremely rare fish. During our explorations, we discovered two living Indonesian coelacanths 360 km southwest of Manado Tua.
    Materialart: Article , PeerReviewed
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  • 3
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    Nature Publishing Group
    In:  Nature, 406 . pp. 955-956.
    Publikationsdatum: 2021-07-01
    Beschreibung: Birds taking time off from breeding head for their favourite long-haul destinations. What oceanic seabirds do outside their breeding periods is something of a mystery, although altogether these "sabbaticals' add up to more than half of their lifetime and are probably a key feature of their life history. Here we use geolocation systems based on light-intensity measurements to show that during these periods wandering albatrosses (Diomedea exulans) leave the foraging grounds that they frequent while breeding for specific, individual oceanic sectors and spend the rest of the year there — each bird probably returns to the same area throughout its life. This discovery of individual home-range preferences outside the breeding season has important implications for the conservation of albatrosses threatened by the development of longline fisheries.
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  • 4
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    Unbekannt
    Nature Publishing Group
    In:  Nature, 403 (6765). p. 38.
    Publikationsdatum: 2019-11-11
    Beschreibung: Living coelacanths (Latimeria chalumnae) are normally found only in the western Indian Ocean, where they inhabit submarine caves in the Comores Islands1. Two specimens have since been caught off the island of Manado Tua, north Sulawesi, Indonesia, some 10,000 kilometres away2. We sought to determine the ecological and geographic distribution of Indonesian coelacanth populations with a view to drawing up conservation measures for this extremely rare fish2,3. During our explorations, we discovered two living Indonesian coelacanths 360 km southwest of Manado Tua.
    Materialart: Article , PeerReviewed
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  • 5
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    Unbekannt
    Nature Publishing Group
    In:  Nature, 404 (6780). p. 814.
    Publikationsdatum: 2021-02-25
    Beschreibung: Book review of: The Change in the Weather: People, Weather, and the Science of Climate by William K. Stevens Delacorte: 2000. 432 pp. $24.95
    Materialart: Article , NonPeerReviewed
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  • 6
    Publikationsdatum: 2017-02-28
    Beschreibung: Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the 'iron hypothesis'. For this reason, it is important to understand the response of pelagic biota to increased iron supply. Here we report the results of a mesoscale iron fertilization experiment in the polar Southern Ocean, where the potential to sequester iron-elevated algal carbon is probably greatest. Increased iron supply led to elevated phytoplankton biomass and rates of photosynthesis in surface waters, causing a large drawdown of carbon dioxide and macronutrients, and elevated dimethyl sulphide levels after 13 days. This drawdown was mostly due to the proliferation of diatom stocks. But downward export of biogenic carbon was not increased. Moreover, satellite observations of this massive bloom 30 days later, suggest that a sufficient proportion of the added iron was retained in surface waters. Our findings demonstrate that iron supply controls phytoplankton growth and community composition during summer in these polar Southern Ocean waters, but the fate of algal carbon remains unknown and depends on the interplay between the processes controlling export, remineralisation and timescales of water mass subduction.
    Materialart: Article , PeerReviewed
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  • 7
    Publikationsdatum: 2017-02-28
    Beschreibung: A large fraction of globally produced methane is converted to CO2 by anaerobic oxidation in marine sediments. Strong geochemical evidence for net methane consumption in anoxic sediments is based on methane profiles, radiotracer experiments and stable carbon isotope data. But the elusive microorganisms mediating this reaction have not yet been isolated, and the pathway of anaerobic oxidation of methane is insufficiently understood. Recent data suggest that certain archaea reverse the process of methanogenesis by interaction with sulphate-reducing bacteria. Here we provide microscopic evidence for a structured consortium of archaea and sulphate-reducing bacteria, which we identified by fluorescence in situ hybridization using specific 16S rRNA-targeted oligonucleotide probes. In this example of a structured archaeal-bacterial symbiosis, the archaea grow in dense aggregates of about 100 cells and are surrounded by sulphate-reducing bacteria. These aggregates were abundant in gas-hydrate-rich sediments with extremely high rates of methane-based sulphate reduction, and apparently mediate anaerobic oxidation of methane.
    Materialart: Article , PeerReviewed
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  • 8
    Publikationsdatum: 2017-02-28
    Beschreibung: The formation of calcareous skeletons by marine planktonic organisms and their subsequent sinking to depth generates a continuous rain of calcium carbonate to the deep ocean and underlying sediments1. This is important in regulating marine carbon cycling and ocean–atmosphere CO2 exchange2. The present rise in atmospheric CO2 levels3 causes significant changes in surface ocean pH and carbonate chemistry4. Such changes have been shown to slow down calcification in corals and coralline macroalgae5,6, but the majority of marine calcification occurs in planktonic organisms. Here we report reduced calcite production at increased CO2 concentrations in monospecific cultures of two dominant marine calcifying phytoplankton species, the coccolithophorids Emiliania huxleyi and Gephyrocapsa oceanica . This was accompanied by an increased proportion of malformed coccoliths and incomplete coccospheres. Diminished calcification led to a reduction in the ratio of calcite precipitation to organic matter production. Similar results were obtained in incubations of natural plankton assemblages from the north Pacific ocean when exposed to experimentally elevated CO2 levels. We suggest that the progressive increase in atmospheric CO2 concentrations may therefore slow down the production of calcium carbonate in the surface ocean. As the process of calcification releases CO2 to the atmosphere, the response observed here could potentially act as a negative feedback on atmospheric CO2 levels.
    Materialart: Article , PeerReviewed
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  • 9
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1098-1098 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A DIVISION of Biochemistry in the Department of Biology has recently been started at the Massachusetts Institute of Technology, and Prof. John M. Buchanan, professor of physiological chemistry in the University of Pennsylvania, has been appointed the first professor and head of the Division as from ...
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1089-1089 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN various forms, at various intervals, and with various degrees of accuracy, integrals of the 'normal' (Gaussian) distribution function have been tabulated, mainly on account of its fundamental importance in statistical calculations. Nothing like the same attention has been given to the ...
    Materialart: Digitale Medien
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  • 11
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1093-1094 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] EXPERIMENTAL evidence has been obtained JOrf recently concerning magnetic discontinuities in the .EJ-layer of the ionosphere near the magnetic equator1. This communication deals with the conclusions which can be drawn from these results about electric currents and D.C.-conductivities in the D- and ...
    Materialart: Digitale Medien
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  • 12
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1098-1098 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WE regret to announce the following deaths : Sir Charles Arden-Close, K.B.E., C.B., C.M.G., F.R.S., formerly director-general of the Ordnance -Survey, on December 19, aged eighty-seven. Mr. J. G. Robb, recently deputy engineer-in-chief of Marconi's Wireless Telegraph Co., Ltd., on December 16, ...
    Materialart: Digitale Medien
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  • 13
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1098-1099 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN connexion with the jubilee of the Manchester College of Technology, an illustrated brochure has been issued (pp. 36 ; from the College) giving an excellent account of the origin of the College and its development since the opening of the present building in 1902. Up to 1918 the institution was ...
    Materialart: Digitale Medien
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  • 14
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1100-1100 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FULL moon occurs on Jan. Od. 05h. 05m., U.T., and also on Jan. 29d. 23h. 44m., and new moon on Jan. 15d. 14h. 08m. The following conjunctions with the moon take place : Jan. 9d. 09h., Saturn 8 N. ; Jan. 19d. Olh., Mars 4 S. ; Jan. 19d. Olh., Venus 4 S. ; Jan. 23d. 02h., Jupiter 7 S. In addition to ...
    Materialart: Digitale Medien
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  • 15
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1103-1104 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Advisory Committee on Arid Zone Research set up by the United Nations Educational, Scientific and Cultural Organization held its fourth meeting in the Royal Society's rooms, Burlington House, London, during September 29-October 1. Following its former policy, the Committee's recommendations ...
    Materialart: Digitale Medien
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  • 16
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1105-1107 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE tercentenary of the foundation of the Leopoldina Academy in Schweinfurt, Bavaria, in the West Zone of Germany, was commemorated during July 13-15 under the auspices of the civic authorities and Historical Society of the town. This was in the nature of a Nachfeier to the main celebrations at ...
    Materialart: Digitale Medien
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  • 17
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1117-1118 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] If the resonance is sharp, that is, the width is small compared to the resonance energy, the asymptotic behaviour of A(ri) for large n has been shown to be Aas - (7ma0F2)1/2. (2) In treating the results of absorption integral measurements, it is convenient to express them in the form : y = ...
    Materialart: Digitale Medien
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  • 18
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1128-1128 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] In the branching variety, D154, buds develop from a portion of apical meristem detached in the axils of leaves during vacuolation and growth, as described by Wardlaw in Matteuccia? and found in a great number of plants45 (Fig. 1). Such a detached meristem can be seen as 'shell zone'6 quite early, ...
    Materialart: Digitale Medien
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  • 19
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1130-1131 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The hysteresis observed on drying is due to a decrease of the internal surface, which takes place in a random way and leads to the phenomenon of random inter-stratification in the re-solvated mineral. In consequence of this, the dried mineral also shows a marked decrease in exchange capacity due to ...
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  • 20
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1132-1132 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SENIOR LECTURER IN PHYSICS and a SENIOR LECTURER IN PHYSICAL CHEMISTRY (with a good honours degree in physics or chemistry respectively and, if possible, experience in teaching, industry and research)The Principal, Acton Technical College, High Street, Acton, London, W.3 (January 3). LECTURER IN ...
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  • 21
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1037-1037 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN Britain lovers of the iris are generously provided with works of reference. Apart from W. R. Dykes's large monographic study of the genus, still the standard work and long likely to remain so, there are his shorter works and numerous papers on the culture and breeding of these plants, and, as ...
    Materialart: Digitale Medien
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  • 22
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1044-1046 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE "Great Seal Patent Office", formed at the end of 1852 as the single office for granting letters patent for new inventions, was the origin of the present Patent Office in London. It is true that letters patent for inventions had been granted in Great Britain for a long time previously. In fact, ...
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  • 23
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1036-1037 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ACCORDING to the publisher, inspired doubtless by the author himself, this work has not been written for the specialist, nor does it aspire to be a normal biography following traditional lines. Rather is it an analysis of the outstanding personality of the "greatest rational and consistent ...
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  • 24
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1048-1048 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN the House of Lords on December 9, Viscount Falmouth, directing attention to the report of the Tweedsmuir Committee on the Imperial Institute, asked whether the Government would consider the transfer of the Institute to a more suitable place and thus free the present site for expansion of the ...
    Materialart: Digitale Medien
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  • 25
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1037-1038 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THIS work is up to p. 344 a reproduction of an JL earlier work which was first published in 1935. The publisher's claim printed on the dust-cover that it reappears revised is not confirmed by the author, who speaks of photographic reproduction with minor emendations. There remain to review here its ...
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  • 26
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1054-1054 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] AMONG the specialist agencies set up by the Governments of the American Republics is the Pan-American Institute of Geography and History (PAIGH). Much of the work of the Institute is carried out by the three Commissions which were set up at the fourth general assembly held at Caracas in 1946. These ...
    Materialart: Digitale Medien
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  • 27
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1047-1047 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] DR. C. F. BAREFORD has been appointed to the post of chief superintendent of the Long Range Weapons Establishment, Australian Department of Supply, in succession to Mr. H. C. Pritchard, who returns to the United Kingdom next year. In his new office, Dr. Bareford will be responsible for the ...
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  • 28
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1049-1049 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE following have been elected Officers and Council of the Royal Society for the ensuing year: President: Dr. E. D. Adrian; Treasurer and Vice-President: Sir Thomas Merton; Secretaries and Vice-Presidents: Sir Edward Salisbury and Sir David Brunt; Foreign Secretary: Sir Cyril Hinshelwood; Other ...
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  • 29
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1053-1054 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Third International Congress on Astronautics, held in Stuttgart during the week September 1-6, was attended by fifty official delegates and more than a hundred visitors. During the first two days the business of the International Astro-nautical Federation was discussed. The major item was the ...
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  • 30
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 1056-1057 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE literature contains numerous references to the synthetic action of a- and (3-glucosidases. Thus Croft-Hill1 claimed the synthesis of maltose from glucose by the action of a yeast extract. Bourquelot and Bridel reported the synthesis of [3-glucosides by the action of almond emulsin (a ...
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  • 31
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 901-901 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN this volume, Prof. H. S. W. Massey and Dr. E. H. S. Burhop have provided an extremely complete compendium of results on the collisions of electrons and atoms. High-energy collisions and neutron collisions are deliberately omitted;* but such problems as inter-atomic collisions, continuous ...
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  • 32
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 899-901 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IT is clear from the Minister of Education's foreword to the report of the committee of inquiry, into the Imperial Institute* that no immediate action on the report is contemplated by the Government. Mr. K. G. Bradley (see p. 912) has been appointed director in succession to Sir Harry Lindsay, ...
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  • 33
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 901-902 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IT is the custom at the European Brewery Conventions to have one or more major themes for discussion: at the first Convention, which was held in Scheveningen, the subjects were of a general character; but at the second, which took place in Lucerne, the two highly important brewing problems of ...
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  • 34
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 902-903 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE steady progress in the publication of "Gmelin" is a praiseworthy and pleasing event. The work has proved of the very greatest value, and new volumes are always welcome. A detailed review here of such a work is impossible, and only a few main features of the parts named above can be sketched. ...
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  • 35
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 903-903 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE book consists of the following seven essays: Prof. H. M. Gluckman on the Lozi, Dr. E. Colson on the Plateau Tonga, Dr. Audrey Richards on the Bemba, Mr. J. A. Barnes on the Fort Jameson Ngoni, the late Godfrey Wilson on the Nyakyusa, Dr. J. C. Mitchell on the Yao, and Dr. J. F. Holleman on the ...
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  • 36
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 904-906 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] DURING the past few years, there has been a very lively interest in the subject of colour. This has derived in part from its increasing technical importance in the colour industries, while the introduction of the fluorescent lamp and the development of colour television have brought out new ...
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  • 37
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 697-698 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A PAPER on "The Shape of Wings to Come", by Mr. D. Keith-Lucas, chief designer of Short Bros, and Harland, Ltd., was read on September 8 before Section G (Engineering) of the British Association at the recent meeting in Belfast. The paper has since been published in full in Engineering (174, 349; ...
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  • 38
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 703-704 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] DURING the first half of the present year, several authors have reported separations of proteins and enzymes by paper chromatography1. However, no investigations concerning the mechanism of this chromatographic process have as yet been published. In this communication a few simple experiments are ...
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  • 39
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 706-706 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The inhibition by nitric oxide of the thermal decomposition of diethyl peroxide1 is clearly no evidence for a free radical ...
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  • 40
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 708-708 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The results of the X-ray investigation of this crystal are shown below. The notation used is that of the "International Tables for the Determination of Crystal Structures" (1935). Composition, BaFe18027 a -5-88 A. c = 32-84A. 2 Ba on 2(fe) 2 Fe 2(d) 4(/) z = 75 4(0) z = 20_ 4(/) z = 26-8 4(/) ...
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  • 41
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 709-709 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Millott and Jacobson1 have recently directed attention to the variations in the solubility of melanin as described by different workers in this field. In the case of sepia and melanoma melanins, as compared with that from 3,4-dihydroxyphenylalanine, these differences in solubility may well be due ...
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  • 42
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 710-710 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] However, as was found recently1, perchlorate in aqueous solutions is decomposed by the action of X-rays into chlorate and oxygen. Fig. 1 shows that the amount of chlorate formed in the irradiation of aqueous solutions of perchloric acid by X-rays (200 kV.) is directly proportional to the ...
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  • 43
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 714-714 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] From the accompanying table it is seen that the efficiency of growth is of the same order in veligers of Mytilus. Littorina and Nassa. Furthermore, the efficiency of growth in Mytilus does not significantly change on metamorphosis. Owing to the heterogeneity of the material the increase in ...
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  • 44
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 913-913 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Plant Breeding Institute at Cambridge, for many years part of the School of Agriculture, University of Cambridge, which was responsible for its administration with the aid of grants from the Ministry of Agriculture and Fisheries, has now been constituted as an independent research institute. It ...
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  • 45
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 914-914 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ON November 4 at 16h. 58m. 20s. G.M.T., an earthquake occurred with epicentre, according to calculations made at the U.S. Coast and Geodetic Survey in Washington, at lat. 52-J N., long. 159 E., near the east coast of Kamchatka. It was recorded strongly at seismological observatories throughout ...
    Materialart: Digitale Medien
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  • 46
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 715-716 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Using a sensitive strain of Serratia marcescens (obtained through the courtesy of Dr. C. E. Chaplin), we were able also to grow cultures resistant to higher concentrations of 'Roccal'. The experiments involved three direct transfers, namely, from a 1: 100,000 dilution of 'Roccal' in nutrient broth ...
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  • 47
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 635-636 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THIS new volume of the National Nuclear Energy Series is devoted to a topic which is of importance to a growing number of research workers who are using non-radioactive isotopes in tracer investigations. Much has already been published on the physical properties and analysis of heavy water; but in ...
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  • 48
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 637-638 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FROM the early days of systematic organic chemistry, organic compounds of phosphorus have been the subject of considerable investigation. Beginning in the late 1860's, the eminent German chemist Michaelis devoted a long and illustrious lifetime to their study, and he and his school were responsible ...
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  • 49
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 640-640 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] PROF. N. J. BERRILL'S excellent contribution to the ever-growing number of popular books about life in the sea is concerned mainly with the inshore life of the east coast of the United States. There are occasional excursions elsewhere, particularly to Salcombe and the coasts of Cornwall- scenes of ...
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  • 50
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 641-641 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] MESSRS. METHUEN'S "Monographs on Physical Subjects" have long provided the student of moderate means with authoritative and modestly priced treatments of subjects not generally well covered by the orthodox text-books, and it is gratifying to know that similar provision is now being made in ...
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  • 51
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 641-641 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A REVIEW of the first edition of this treatise appeared in Nature of May 8, 1948. The fact that a second edition has been called for so soon is evidence of public appreciation of the book and of the vitality of aeronautical science. The second edition is substantially identical with the first, ...
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  • 52
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 647-648 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE thirteenth International Horticultural Congress was held in London during September 8-15. It was opened on the morning of September 8 by Sir Thomas Dugdale, the Minister of Agriculture and Fisheries. Lord Aberconway, president of the Congress, and Dr. H. V. Taylor, vice-president and chairman ...
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  • 53
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 651-651 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] PROF. J. A. S. RITSON, professor of mining in the Royal School of Mines, London, has been elected president of the Institution of Mining and Metallurgy for the session 1953-54 and will take office at the general meeting to be held on May 28, 1953. Prof. Ritson was educated at Uppingham School and ...
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  • 54
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 650-650 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] PROF. C. H. LEES passed away on September 25, at the age of eighty-eight. He was a man of great charm and endeared himself to friends and students. Lees possessed great patience, and he was not to be deviated from the course he had set himself by difficulties when carrying out a piece of research. ...
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  • 55
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 922-923 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE carbamylazides, as a group, were classified by Bertho1 as resistant to the Curtius rearrangement. However, other work2 showed that while some members of this group (1, Rx or i?2 = H, R2 or R1 = alkyl/aryl) failed to become rearranged, others (1, Rt or R2 = C6H5) did so. K (2) II O (i) Hurd3 ...
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  • 56
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 651-652 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] AT a ceremony on October 11 at the College of Technology, Manchester, which formed part of the jubilee celebrations of the College, the associateship of the College was conferred on the Minister of Education, Miss Florence Horsbrugh, and on Lord Cherwell and Alderman Wright Robinson. Although more ...
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  • 57
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 652-652 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE twenty-fourth annual report of the National Foundation for Scientific Research, Brussels (pp. 193; 1951), covering the year 1950-51, refers to the establishment on July 26, 1951, of the Inter-University Institute of Nuclear Sciences and to the increase of its financial resources from 20 million ...
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  • 58
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 657-659 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ALTHOUGH sea-waves have been recorded for a ZJL number of years using shore-connected pressure-measuring instruments or inverted echo-sounders laid on the sea-bed, collection of exact information about waves, studies of the growth of waves relative to the wind, and studies of ship motion and of ...
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  • 59
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 662-663 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The availability of a pure mucoprotein from urine4 inhibiting the virus haemagglutinin to a high titre rendered possible an investigation of its carbohydrate residue. With this mucoprotein prepared by a modified technique5, three series of experiments were performed: (1) Acid hydrolysis: (a) ...
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  • 60
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 659-660 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A PRELIMINARY examination of the amino-acids present in young (10 gm.) fruits of Bram-ley's Seedling apples by means of filter-paper chromatography1 suggested the presence of at least one 'unknown' amino-acid. A more extended examination of young (15 gm.) Worcester Pearmain apples indicated the ...
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  • 61
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 928-928 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Thrice-washed human red cells (group O, CDE positive) are heated for 10 min. at 50 , 52 , 54 and 56 C, and then tested for their reactivity with anti-Z) serum at 37 C. As the temperature is increased, the fragmentation and haemolytic phenomena become more and more pronounced, as already ...
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  • 62
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 928-929 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] This suggestion is especially interesting in view of the fact that tri-ortho-cresyl phosphate (TOCP), which is known to be a selective inhibitor of pseudo -cholinesterase'5, causes paralysis in many species with demyelination of the peripheral nerves, degenerative changes in the anterior horn ...
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  • 63
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 929-929 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] When bovine lung tissue was treated as described for the preparation of fibrinokinase, no fibrinolytic activator was obtained, but the tissue acted as a powerful inhibitor of trypsin and plasmin4. Recently5, we succeeded in isolating from this tissue a soluble protease inhibitor by extraction with ...
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  • 64
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 930-931 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] In view of the well-known effect of colchicine on mitosis, it was considered interesting to attempt to make T〉 vaginalis resistant to colchicine. Initially our strain grew in a concentration of 1 in 16,000 colchicine incorporated in the medium, but there were only a few survivors in flagellates ...
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  • 65
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 592-593 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IT is much to be regretted that the work of the eminent French psychiatrist, Pierre Janet (1859-1947), was overshadowed during his lifetime by that of his greater contemporary Freud and, consequently, is little known in English-speaking countries. We are therefore grateful to the late Prof. Elton ...
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  • 66
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 595-595 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE objects of the British National Bibliography are to list every new work published in Great Britain, to describe each work in bibliographic detail and to give the subject-matter of eacH work as precisely as possible. The work is carried out at the British Museum by a team of fully qualified ...
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  • 67
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 595-595 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IT is now generally accepted that crime is the product of environment rather than inheritance. There are some factors?such as mental deficiency? which may be inherited and influence behaviour, but even with these good environment is able to prevent antisocial behaviour in the majority of cases. If ...
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  • 68
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 596-596 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IDENTIFICATION of insects is a difficult subject JL for the non-specialist, the species being so numerous?more" than twenty-one thousand in Britain?with many closely alike. Most popular books offer illustrated descriptions of a selection, through which laborious search is frequently necessary. ...
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  • 69
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 599-601 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The First International Congress on Analytical JL Chemistry, under the patronage of the International Union of Pure and Applied Chemistry, was held at Oxford during September 4-9, with Sir Robert Robinson as president. The Congress consisted of twelve sessions, at which forty-three scientific ...
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  • 70
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 605-605 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WE regret to announce the following deaths: Dr. W. T. Calman, C.B., F.R.S., lately keeper of zoology, British Museum (Natural History), on September 29, aged eighty. Dr. Philipp Ellinger, formerly of the Lister Institute, on September 12. Prof. F. C. Lea, O.B.E., emeritus professor of ...
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  • 71
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 605-606 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A GROUP of scientific workers recently met in Montevideo under the auspices of the Unesco Science Co-operation Office for Latin America in order to study the possibility of establishing international and regional laboratories in Latin America. The meeting stressed the importance of the special ...
    Materialart: Digitale Medien
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  • 72
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 605-605 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FREDERICK THOMAS HILL, assistant professor of aeronautics in the Imperial College of Science and Technology, London, died on September 24 within a few days of his retirement. Prof. Hill was born on November 13, 1886. He was apprenticed to the Great Eastern Railway Company and completed his ...
    Materialart: Digitale Medien
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  • 73
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 607-607 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] LEICESTER MUSEUM AND ART GALLERY is to be congratulated on the issue of the first number of a Bulletin. It is envisaged that each number shall be a coherent whole, and that all articles shall be linked by some common and fundamental idea. The present theme is "Origin", and the second will be ...
    Materialart: Digitale Medien
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  • 74
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 606-606 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] DUBING the week September 21-27 the first meetings of the European Seismological Commission, as constituted by the International Union of Geodesy and Geophysics at Brussels in 1951, took place in Stuttgart. The meetings were attended by representatives from twelve European countries, three being ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 75
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 607-607 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] USING data on the breeding biology of the spotted flycatcher which he had obtained from observations carried out by different investigators at 548 nests, D. Summers-Smith has shown that the normal laying period for this bird in Britain extends from mid-May until the end of July, a small number of ...
    Materialart: Digitale Medien
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  • 76
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 608-608 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Petroleum Films Bureau has recently published its 1952 list of 35-mm. and 16-mm. documentary and instructional films. It contains certain features not found in the previous'1951 list, and included among the new films are "Oil for the 20th Century", "The Persian Oil Dispute", "Grangemouth ...
    Materialart: Digitale Medien
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  • 77
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 609-610 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE figures for tuberculosis mortality (England and Wales) since the end of the Second World War show a marked decline. In 1946 the deaths from respiratory tuberculosis were 19,365; in 1950 they were 14,079. In 1946 the deaths from'other forms of tuberculosis (bone and joint disease, meningitis, ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 78
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 621-621 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Using pure collagen prepared by the method of Highberger2 from buffalo tendo Achillis, we have been able to demonstrate, in culture filtrates of V. cholerce, a collagenase with an optimum pH of 8-0. This enzyme could not be detected in culture filtrates of B. coli. The method employed for this ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 79
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 624-625 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] It has been found that red cells in which all the haemoglobin has been converted to methaemoglobin by sodium nitrite contain no reduced glutathione. When stored in the cold they haemolyse spontaneously in apparently a shorter time than the normal cells3. These observations suggest that the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 80
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 627-627 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The animal adopts a curled-up position upon its ide or back, within the nest, parts the hind-limbs and begins to lick the anus. Some individuals grip the hind-limbs with the forefeet in order to maintain this attitude. After a few seconds a rapid series of abdominal contractions brings about the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 81
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 627-628 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Denticles of Ascaris of pig and man. Through the kind co-operation of Dr. P. C. Beaver, of Tulane University, U.S.A., I have recently examined, while working at the Ontario Research Foundation, about fifty well-preserved specimens of the human ascaris removed from the intestine of a child at ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 82
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 631-631 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Let the successive individual readings be A, B, G ... X, Y, Z. The sum is required of all the ranges between adjacent numbers. This means that all the differences, (A B), (B C), and so on, are to be given a positive sign and added together. If B, is greater than both A and (7, it will have a ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 83
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 940-940 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] (not included in the monthly Books Supplement) Great Britain and Ireland Electrical Research Association. Technical Report L/T.255: Excitation Temperatures of Hydrogen Arcs. By H. Edels and J. D. Craggs. Pp. 18+8 plates. 12". Technical Report W/T.24: Electrical Soil Warming for Salad Crops in ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 606-606 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Mathematical Research Institute of Oberwolfach (State of Baden), in the French Zone of Germany, has been functioning regularly since it was first opened in 1945 under its honorary director, Prof. W. Suss, of Freiburg (editor of the German Fiat reviews in mathematics), and a large number of ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 85
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 607-607 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] UP to the outbreak of the First World War, .at which period the bulk of the woods in Great Britain were on private estates, the general forestry method in force was clear-felling and replanting chiefly with conifers. The true practice of sylviculture and correct forest management, as found in ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 86
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 559-560 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] BY the sudden death in Canada on September 5 of Lord Robinson of Kielder Forest and Adelaide, Great Britain has lost its foremost forester. An Australian by birth and early upbringing, he was one of the first of the Rhodes Scholars and seldom, indeed, can the Rhodes Foundation have made a better ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 87
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 561-562 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] EMIL FISCHER, who in his life-time exerted a profound influence on chemistry and chemists of his generation and whose discoveries in biochemistry are still yielding rich harvests, was born a century ago, on October 9, 1852, at Euskirchen in Rhenish Prussia. The son of a prosperous merchant, he was ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 88
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 562-562 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] EVEBY year in England and Wales about 100,000,000 poultry eggs are used for hatching purposes; of these, about 30 per cent fail to hatch. Failure to hatch may be due to unsatisfactory nutrition of the breeding flock or it may be due to some fault of the hatchery incubating the eggs. Whatever the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 89
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 563-563 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE Library Association has published a pamphlet, entitled "Newspaper Libraries", by J. Lewis (No. 11 in the series; pp. 76; 1952. 7s., or 5s. to members), which outlines first the functions of such libraries in Great Britain and then describes the types of material contained in a newspaper library ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 90
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 861-863 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE normal type of electron microscope allows specimens to be examined by transmission only. The possibility of image formation with electrons scattered from a solid surface was early investigated by Ruska and Miiller1, with normally incident electrons, and by von Borries2 with grazing incidence. ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 91
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 567-569 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Demonstration of Bayer 205 (Suramin) in Tissues and its Cellular Distribution THE purpose of our investigations was the elaboration of a histological method suitable for the study of the microscopic localization of suramin. Such a procedure seemed all the more desirable as this important ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 92
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 573-574 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The material examined was from normal rats and those with acute or healing rickets or suffering from deficiency of vitamin A or E. Preparations of enamel organs were dissected from teeth which had been fixed in formol-saline but not decalcified. These were mounted as smears or frozen sections. In ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 93
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 577-578 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The red algal plastids are apparently permeable to low molecular weight solutes such as sucrose and potassium chloride, but not to higher molecular weight solutes such as some polyethylene glycols, dextrin and egg albumin. This result is not surprising in view of the colloidal nature of the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 94
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 579-580 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Fresh leaves were extracted with ethyl alcohol by blending 20-gm. portions with 80 ml. of alcohol (final concentration, 75 per cent) in a Waring blendor for about 5 min. After centrifuging, the alcohol extract was well shaken with three times its volume of chloroform and again centrifuged. The ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 95
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 582-582 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] In the case of deterministic theories, we must surely distinguish between reversible and irreversible determined processes. Time, in statistical but determined laws, as distinct from dynamical laws, surely has a very definite significance, for example, in its relation to entropy changes and ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 96
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 583-584 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The apparatus described here has been used to investigate some decay schemes. The following results have been obtained: Silver-110. It has been possible to determine in a satisfactory way the coincidence relations of the two beta-components and of the strongest six gamma-rays. Our results are in ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 97
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 881-881 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE annual report of the Indian Association for the Cultivation of Science for 1951-52* records the completion of the transfer to the Association's new buildings at Jadarpur and the removal of the Department of Organic Chemistry in June 1951, but research work was considerably curtailed by the ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 98
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 881-881 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE normal process for the extraction of oils and X fats from naturally occurring cellular material involves the use of a hot solvent. This process requires steam heating for many hours, resulting in the formation of some undesirable degraded products. British Glues and Chemicals, Ltd., gave a ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 882-882 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Whole muscle Lotmar-Picken material Substance 'X' Extract (continuous Equator First layer line circles) 0-075 m 0 -080 m 0-076m U) 0 -086 vw 0-105 vw 0-107 m 0-106 m (LP) 0-118 s 0-118 m (X) 0-127 m 0-127m (LP) 0-128 vw 0-135 w 0-133 w (LP) 0-140 w 0-139W ...
    Materialart: Digitale Medien
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  • 100
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 510-510 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] PROF. HANS SODING says that his aim in writing this book is to make acomprehensive presentation of all aspects of research on growth substances, set in their proper perspective in the wider field of plant physiology. To achieve this, he assumes the usual text-book knowledge of plant physiology; but ...
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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