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  • Articles  (21,473)
  • Copernicus  (9,865)
  • National Academy of Sciences  (8,390)
  • Nature Publishing Group
  • 2010-2014  (18,095)
  • 1995-1999
  • 1980-1984
  • 1945-1949  (3,378)
  • 1925-1929
  • 2011  (18,095)
  • 1949  (3,378)
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  • 2010-2014  (18,095)
  • 1995-1999
  • 1980-1984
  • 1945-1949  (3,378)
  • 1925-1929
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  • 1
    Publication Date: 2017-04-04
    Description: The MW 8.8 mega-thrust earthquake and tsunami that occurred on February 27, 2010, offshore Maule region, Chile, was not unexpected. A clearly identified seismic gap existed in an area where tectonic loading has been accumulating since the great 1835 earthquake experienced and described by Darwin during the voyage of the Beagle. Here we jointly invert tsunami and geodetic data (InSAR, GPS, land-level changes), to derive a robust model for the co-seismic slip distribution and induced co-seismic stress changes, and compare them to past earthquakes and the pre-seismic locking distribution. We aim to assess if the Maule earthquake has filled the Darwin gap, decreasing the probability of a future shock . We find that the main slip patch is located to the north of the gap, overlapping the rupture zone of the MW 8.0 1928 earthquake, and that a secondary concentration of slip occurred to the south; the Darwin gap was only partially filled and a zone of high pre-seismic locking remains unbroken. This observation is not consistent with the assumption that distributions of seismic rupture might be correlated with pre-seismic locking, potentially allowing the anticipation of slip distributions in seismic gaps. Moreover, increased stress on this unbroken patch might have increased the probability of another major to great earthquake there in the near future.
    Description: Published
    Description: 173-177
    Description: 3.1. Fisica dei terremoti
    Description: 4.2. TTC - Modelli per la stima della pericolosità sismica a scala nazionale
    Description: JCR Journal
    Description: restricted
    Keywords: Source process ; Chile ; Tsunami ; Joint Inversion ; Seismic Gap ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.07. Tectonophysics::04.07.05. Stress ; 04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processes ; 05. General::05.01. Computational geophysics::05.01.03. Inverse methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 2
    Publication Date: 2017-04-04
    Description: During the 2007-2008 antarctic campaign, the Italian PNRA installed a Low Power Magnetometer within the framework of the AIMNet (Antarctic International Magnetometer Network) project, proposed and coordinated by BAS. The magnetometer is situated at Talos Dome, around 300 km geographically North-West from Mario Zucchelli Station (MZS), and approximately at the same geomagnetic latitude as MZS. In this work we present a preliminary analysis of the geomagnetic field 1-min data, and a comparison with simultaneous data from different Antarctic stations.
    Description: Published
    Description: Vienna, Austria
    Description: 1.6. Osservazioni di geomagnetismo
    Description: open
    Keywords: daily variation ; AIMNet project ; Antarctica ; 04. Solid Earth::04.05. Geomagnetism::04.05.02. Geomagnetic field variations and reversals
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 3
    Publication Date: 2019-07-17
    Description: In this study temporal variations of coccolithophore blooms are investigated using satellite data. Eight years, from 2003 to 2010, of data of SCIAMACHY, a hyper-spectral satellite sensor on-board ENVISAT, were processed by the PhytoDOAS method to 5 monitor the biomass of coccolithophores in three selected regions. These regions are characterized by frequent occurrence of large coccolithophore blooms. The retrieval results, shown as monthly mean time-series, were compared to related satellite products, including the total surface phytoplankton, i.e., total chlorophyll-a (from GlobColour merged data) and the particulate inorganic carbon (from MODIS-Aqua). The 10 inter-annual variations of the phytoplankton bloom cycles and their maximum monthly mean values have been compared in the three selected regions to the variations of the geophysical parameters: sea-surface temperature (SST), mixed-layer depth (MLD) and surface wind speed, which are known to affect phytoplankton dynamics. For each region the anomalies and linear trends of the monitored parameters over the period of this 15 study have been computed. The patterns of total phytoplankton biomass and specific dynamics of coccolithophores chlorophyll-a in the selected regions are discussed in relation to other studies. The PhytoDOAS results are consistent with the two other ocean color products and support the reported dependencies of coccolithophore biomass’ dynamics to the compared geophysical variables. This suggests, that PhytoDOAS 20 is a valid method for retrieving coccolithophore biomass and for monitoring its bloom developments in the global oceans. Future applications of time-series studies using the PhytoDOAS data set are proposed, also using the new upcoming generations of hyper-spectral satellite sensors with improved spatial resolution.
    Repository Name: EPIC Alfred Wegener Institut
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  • 4
    Publication Date: 2019-07-17
    Description: The gradual cooling of the climate during the Cenozoic has generally been attributed to a decrease in CO2 concentration in the atmosphere. The lack of transient climate models and in particular the lack of high-resolution proxy records of CO2, beyond the ice-core record prohibit however a full understanding of for example the inception of the Northern Hemisphere glaciation and mid-Pleistocene transition. Here we elaborate on an inverse modelling technique to reconstruct a continuous CO2 series over the past 20 million year (Myr), by decomposing the global deep-sea benthic d18O record into a mutually consistent temperature and sea level record, using a set of 1-D models of the major Northern and Southern Hemisphere ice sheets. We subsequently compared the modelled temperature record with ice core and proxy-derived CO2 data to create a continuous CO2 reconstruction over the past 20 Myr. Results show a gradual decline from 450 ppmv around 15 Myr ago to 225 ppmv for mean conditions of the glacial-interglacial cycles of the last 1 Myr, coinciding with a gradual cooling of the global surface temperature of 10 K. Between 13 to 3 Myr ago there is no long-term sea level variation caused by ice-volume changes. We find no evidence for a change in the long-term relation between temperature change and CO2, other than the effect following from the saturation of the absorption bands for CO2. The reconstructed CO2 record shows that the Northern Hemisphere glaciation starts once the long-term average CO2 concentration drops below 265 ppmv after a period of strong decrease in CO2. Finally, only a small long-term decline of 23 ppmv is found during the mid-Pleistocene transition, constraining theories on this major transition in the climate system. The approach is not accurate enough to revise current ideas about climate sensitivity.
    Repository Name: EPIC Alfred Wegener Institut
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  • 5
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 6
    Publication Date: 2022-05-25
    Description: © Macmillan Publishers Limited, 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Communications 2 (2011): 293, doi:10.1038/ncomms1297.
    Description: The relative importance of north–south migrations of the intertropical convergence zone (ITCZ) versus El Niño-Southern Oscillation and its associated Pacific Walker Circulation (PWC) variability for past hydrological change in the western tropical Pacific is unclear. Here we show that north–south ITCZ migration was not the only mechanism of tropical Pacific hydrologic variability during the last millennium, and that PWC variability profoundly influenced tropical Pacific hydrology. We present hydrological reconstructions from Cattle Pond, Dongdao Island of the South China Sea, where multi-decadal rainfall and downcore grain size variations are correlated to the Southern Oscillation Index during the instrumental era. Our downcore grain size reconstructions indicate that this site received less precipitation during relatively warm periods, AD 1000–1400 and AD 1850–2000, compared with the cool period (AD 1400–1850). Including our new reconstructions in a synthesis of tropical Pacific records results in a spatial pattern of hydrologic variability that implicates the PWC.
    Description: This work was supported by the Natural Science Foundation of China (NSFC) (40730107) and the Major State Basic Research Development Program of China (973 Program) (No.2010CB428902). DWO acknowledges support from the US NSF.
    Repository Name: Woods Hole Open Access Server
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  • 7
    Publication Date: 2022-05-25
    Description: © International Society for Microbial Ecology, 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in The ISME Journal 5 (2011): 1565–1567, doi:10.1038/ismej.2011.39.
    Description: Interest in sampling of diverse environments, combined with advances in high-throughput sequencing, vastly accelerates the pace at which new genomes and metagenomes are generated. For example, as of January 2011, 12 500 user-generated metagenomes have been submitted to the public MG-RAST Annotation server (http://metagenomics. nmpdr.org; Meyer et al., 2008), 490% of which were produced using high-throughput sequencing methodologies. We have entered into an era of ‘mega-sequencing projects’ that include the Genomic Encyclopaedia of Bacteria and Archaea project (http://www.jgi.doe.gov/programs/GEBA), the Microbial Earth Project (http://genome.jgi-psf. org/programs/bacteria-archaea/MEP/index.jsf), the Human Microbiome Project (http://nihroadmap.nih. gov/hmp), the Metagenomics of the Human Intestinal Tract consortium (http://www.metahit.eu), the Terragenome Initiative (http://www.terragenome. org), the Tara Oceans Expedition (http://oceans. taraexpeditions.org), the National Ecological Observatory Network (NEON-http://www.neoninc.org), the International Census of Marine Microbes (ICoMM-http://icomm.mbl.edu), Microbial Inventory Research Across Diverse Aquatic Long-Term Ecological Research Sites (http://amarallab.mbl. edu/mirada/mirada.html), the Earth Microbiome Project (http://www.earthmicrobiome.org) and other funded and unfunded projects, with many more visionary projects on the horizon.
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  • 8
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    Nature 164 (1949), S. 1106-1106 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS is the first of a series of regional volumes to ba iieubd by the editors of the New Naturalist. They I wppose to deal with those parts of Britain which\fte within areas which are likely to become national parks in the near future and which possess a special appeal to naturalists and lovers of ...
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  • 9
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    Nature 164 (1949), S. 1112-1114 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE enormous energy possessed by the cosmic rays hasttswren rise to many speculations as to how theyfpoufi be generated, which have gone deep into the ijiLperties of the ultimate particles, and into the dismpution of matter in outer space1. The purpose of the present note is to direct attention to ...
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  • 10
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    Nature 164 (1949), S. 1127-1127 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] REHBINDER and his colleagues have recorded in a series of papers1 that surface-active liquids, brought into contact with the surface of metals, in particular of single crystals, markedly diminish the mechanical strength. In Nature recently2, D. S. Kemsley, trying ...
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  • 11
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    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 1129-1130 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EXAMINATION of the material in the Fifth Lick Catalogue of spectroscopic binaries, recently published by Moore and Neubauer1, reveals a definite relation between periods of revolution P and eccentricities of orbits e for binaries with short periods if their components belong to ...
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  • 12
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    Nature 164 (1949), S. 1116-1116 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PROF. THOMAS SLATER PRICE was born on August 24, 1875, and died on OcMier 29, 1949. Educated at King Edward's Hig4'i$3hool, Birmingham, he proceeded to Mason Collage, Birmingham, and graduated with first-class flonours in chemistry and physics at the University or London in 1895. In that year he ...
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  • 13
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    Nature 164 (1949), S. 1120-1121 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN October 1946 the Economic and Social Council of the Unitedvftftions adopted by a large majority a resolution .Unitted by the French delegation calling with tff ae Secretary-General, in consultation ffu(functional, Scientific and Cultural Organ-the other specialized agencies concerned, upon the ...
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  • 14
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    Nature 164 (1949), S. 1135-1136 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the spring of 1948 a mass treatment programme with ‘Hetrazan’ was conducted on the island of St. Croix, with the object of reducing microfilaræmia in persons infected with Wüchereria banorofti to sub-infective levels for mosquitoes. A survey of 977 people of all age groups revealed an ...
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  • 15
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    Nature 164 (1949), S. 1137-1138 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FULTON has criticized1 my work on the growth-cycle of influenza virus2; he appears to have confirmed the main facts, but is reluctant to accept the conclusions. The essential facts are these. (1) Extracts of tissue infected with influenza virus contain two ...
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  • 16
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    Nature 164 (1949), S. 1122-1123 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE status of JwTcommon sheld-duck, Tadorna tadoma (L.),i^ Great Britain and Ireland has long been descfifa0i in the ornithological literature as being simila* toWhat of other British breeding ducks, namely, a resident species the numbers of which are increaseftjiby immigrants from the continent of ...
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  • 17
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    Nature 164 (1949), S. 1125-1125 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ANNUAL REPORT THE MunituaiisiSupply Laboratories of the Com-monwoblffi of Australia Department of Supply and Deyeisroment have now been re-named as the DefepCTjjRfl'earch Laboratories; and the first annual junder that title*, covering the year ended June 1948, shows that the establishment is ...
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  • 18
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    Nature 164 (1949), S. 1127-1128 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN non-cubic crystals the rate of self-diffusion can be expected to depend on the crystallographic direction parallel to which the diffusion is measured. Although the determination of this anisotropy is of interest for the theory of diffusion, experiments have so far only been carried out on ...
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  • 19
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    Nature 164 (1949), S. 1128-1129 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN a ball is pressed into a plane metal surface, it has been shown1 that the relation: ... holds between the load L (kgm.) and d (mm.) the recovered diameter of the impression in the material. Both n (Meyer index) and a are constants which are dependent upon the material and ...
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  • 20
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    Nature 164 (1949), S. 1130-1131 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE communication by J. A. Allen and I. Lauder1 is of interest to us since we are also making an examination of such reactions. It was anticipated that this work would throw some light on the nature and reactivity of solids and solid surfaces; this expectation has been ...
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  • 21
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    Nature 164 (1949), S. 1075-1076 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BY the death of Willoughby P. Lowe there passes one of the last of the professional collectors who worked so successfully on Behalf of the British Museum. Willoughby Rescott Lowe was the son of the Rev. Edwardl Idwe and was born at Tyler's Green, Burminghamshire, on December 10, 1872. From his ...
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  • 22
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    Nature 164 (1949), S. 1076-1076 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Economics and Statistics Division of the United Nations Food and Agriculture Organisation has appointed Mr. C. P. G. J. Smit to be regional representative for statistics in Asia and the Far East. Mr. Smit, who has been with the Netherlands Government for twenty-one years, was formerly deputy ...
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  • 23
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    Nature 164 (1949), S. 1138-1138 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE occurrence of a new strain of mice (Mus musculus, L.) resembling the extinct souris luxées of Rabaud1 has been reported2; these mice show extensive abnormalities of the hind limbs, including absence of the tibia (hemimelia). The condition was found to be due to ...
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  • 24
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    Nature 164 (1949), S. 1138-1138 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the last paragraph of the leading article entitled “Training for Research” in Nature of November 19, it is stated that “the responsibility for the development of higher technological education has been placed on the University Grants Committee”. This statement is incorrect, and may ...
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  • 25
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    Nature 164 (1949), S. 1061-1063 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE has been much discussion in recent months of the problem of incentives as a means of encouraging hjfipdKsed effort and productivity in industry^ Agfercfrom economic and related aspects, s^Llonsiderable interest to psychologists, socle* scientiif& Jand many other scientific workers, and it ...
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  • 26
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    Nature 164 (1949), S. 1066-1066 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHILE the main general principles of the original notation are retained in this second edition, some changee ha** been made, and the new edition is offered llennitive proposal for an international delineating and enumerating organic In the description of ring systems the of adduction is abandoned ...
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  • 27
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    Nature 164 (1949), S. 1072-1073 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON the invitation of the British Government, the International Council for the Exploration of the Sea (Conseil Permanent International pour 1'Explora-tion de la Men arranged to hold its thirty-seventh annual naee^in^ttrEdinburgh during October 311. The occasipn-jpas the more welcome since it was ...
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  • 28
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    Nature 164 (1949), S. 1068-1072 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE following report is intended to summarize briefly some of the main findings discovered in an investigation of the metabolism of organic nitrogen compounds in soil, with particular reference to the breakdown of amino-aeids and certain allied sub-x-stances. They throw light on the problem of the ...
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  • 29
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    Nature 164 (1949), S. 1076-1076 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE regret to announce the following deaths: Mr. W. E. Copleston, C.S.I., formerly chief conservator of forests, Bombay, on December 1. Prpf. Rene Maire, professor of botany in the University of Algiers, one of the twelve non-resident members of the Paris Academy of Sciences, on November 24, aged ...
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    Nature 164 (1949), S. 1076-1076 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] JOSEPH FRIEPRICH FREIHERR VON MERING, who was born in Cologne a century ago on December 28, is remembered as a pioneer in the work on diabetes; his paper, with Oscar Minkowski, in the Archiv fur experimentelle Pathologie und Pharmakologie (26, 371; 1890), reported the production of diabetes in a ...
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    Nature 164 (1949), S. 1077-1077 
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    Notes: [Auszug] THE annual exhibitions of scientific instruments held in London by the Physical Society are well known, and the printed catalogues of these exhibition, containing as they do a wealth of information which'is handy for reference and not easily accessible in any other form, have proved most useful to ...
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    Nature 164 (1949), S. 1078-1078 
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    Notes: [Auszug] THE Registrar General for England and Wales has recently issued a booklet entitled "Estimates of the Sex and Age Distribution of the Civilian Population in regions and Administrative Areas of England and wales on 31st December, 1947" (London: H.M. Stationary Office, 2s. 6d.). This publication fills ...
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    Nature 164 (1949), S. 1078-1078 
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    Notes: [Auszug] THE Faraday Lecture for 1949-50 of the Institution of Electrical Engineers will be given by Dr. R. A. Smith at the Central Hall, Westminster, London, S.W.I, on January 18, the subject being "Radar". THE Council of the Royal Society has made a grant of $1,000 towards the establishment of a Great ...
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    Nature 164 (1949), S. 1082-1083 
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    Notes: [Auszug] TWO papers on the psychological procedures in the selection of factory operatives were read to Section J(Phychology) of the British Association, at the recent meeting in Newcastle upon Tyne. The first paper, by W. S. Porteous, chief industrialist phychologist to Rowntree and Co., Ltd., described ...
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    Nature 164 (1949), S. 1084-1085 
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    Notes: [Auszug] IN cutting histological sections in the tropics, the room temperatures during the day are in many cases so high that microtome work has to be done during the evening or at night. With paraffin wax the solution of this difficulty is usually sought in the employment of a wax of a higher melting point ...
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    Nature 164 (1949), S. 1086-1087 
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    Notes: [Auszug] SECONDARY electrons, generated by X-rays, have been used for producing shadow images of very thin specimens (Trillat1, Tasker and Towers2). The use of other radiations (except X-rays), for example, alpha-and beta-rays, recoil atoms and accelerated ions for similar ...
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    Nature 164 (1949), S. 1022-1022 
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    Notes: [Auszug] THIS series of Bulletins was commenced thirty years ago and is now nearing completion-the present volume being the seventeenth. Every aspect of bird life is dealt with, from the building of the nest to following the species to their winter quarters. In addition, there are paragraphs dealing with ...
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    Nature 164 (1949), S. 1031-1032 
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    Notes: [Auszug] DR. JOHN NEVILLE KEYNES, who died at his home in Cambridge on November 15, at the age of ninety-seven, was born at Salisbury on August 31, 1852, to John keynes and his wife, Anna Maynard Neville. After studying at University College, London, he went up to Cambridge as a member of Pembroke College. ...
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    Nature 164 (1949), S. 1033-1033 
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    Notes: [Auszug] DR. S. DEVONS who has been appointed to the recently instuted University chair of physics tenable at the Imperial College of Science and Technology, London, gQitluated at Cambridge in 1935 and started research in the Cavendish Laboratory, under Lord Rutherford, on the radioactivity of radium C" and ...
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    Nature 164 (1949), S. 1088-1089 
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    Notes: [Auszug] IT is well known that the normal equations for the least squares adjustment of networks of spirit-levelling and similar observations can be solved very simply by relaxation1; but the determination of the standard deviation of the n heights requires the solution of n sets of n ...
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    Nature 164 (1949), S. 1090-1091 
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    Notes: [Auszug] DUE mainly to the extensive and brilliant researches of Ruzicka and his school, a large majority of the well-characterized triterpenoid compounds have been classified as being related to one or other of the three isomeric alcohols, α-amyrin, β-amyrin or lupeol, and their relationships with ...
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    Nature 164 (1949), S. 1092-1093 
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    Notes: [Auszug] THE high content of arginine residues in protamines (salmine, for example, contains 85–88 per cent arginine1), the low molecular weight of these strongly basic proteins, and the accumulating data on the polymerization of N-carboxyl anhydrides of α-amino acids2, led ...
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    Nature 164 (1949), S. 1093-1093 
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    Notes: [Auszug] THE separation of vanillin and syringaldehyde produced by the oxidation of lignins with nitrobenzene in alkaline medium is of importance in lignin chemistry. Spruce lignin gives only vanillin1, whereas hardwood lignins give both aldehydes in relative quantities depending on the ...
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    Nature 164 (1949), S. 1095-1095 
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    Notes: [Auszug] RECENT investigations in these laboratories1 have shown that it is possible to increase the potency of glass plates treated with D.D.T. by storing them previously in a box made of Burma teak, Tectona grandis L. As a first step in understanding the mechanism of this activation, ...
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    Nature 164 (1949), S. 1097-1097 
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    Notes: [Auszug] IT was shown by Quastel and Wheatley1 that slices of brain tissue are able to oxidize l-glutamic acid in the absence of glucose. Recent experiments by Mayer-Gross and Walker2 have shown that the injection of glutamic acid and other amino-acids relieves the ...
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    Nature 164 (1949), S. 1099-1099 
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    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or mentioned: LECTURE IN AGRICULTURAL SCIENCE, with particular emphasis and Implements, at the Shropshire Farm Institute, ichurchThe Secretary for Education, County ibury (December 29). LECTURER (Grade II) IN GEOLOGYThe Secretary, The ...
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    Nature 164 (1949), S. 1099-1100 
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    Notes: [Auszug] (not included in the monthly Books Supplement) Great Britain and Ireland University Grants Committee. Returns from Universities and UnWersity Colleges in receipt of Treasury Grant, Academic Year 1W7-48. Pp. 28. (London: H.M. Stationery Office, 1949.) Is. 6d. net. [149 Department of Scientific ...
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    Nature 164 (1949), S. 1021-1022 
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    Notes: [Auszug] THESE three books are a testimony to the way German botany, and German book-publishing, are recovering from the War. Each book in its own way has something of interest for British botanists. Indeed, these three books are so different from their English counterparts that, in the eyes of students, ...
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    Nature 164 (1949), S. 1030-1031 
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    Notes: [Auszug] ON September 6 a symposium on microbial digestion in the alimentary tract was held jointly between Section I (Physiology) and Section M (Agriculture) of the British Association at the recent meeting at Newcaste upon Tyne. Dr. D. P. Cuthbertson (Rowett Research Institute) introduced the subject by ...
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    Nature 164 (1949), S. 1032-1032 
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    Notes: [Auszug] We regret to announce the following deaths: Prof. Alfred S. Barnes, formerly professor of electrical engineering in the University of Manchester, on November 11, aged eighty-one. Mr. George Moores who, with the late Mr. J. H. Lester of Manchester, was jointly responsible for the beginning of the ...
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    Notes: [Auszug] AT the fifth sections meeting of the Conference of the British Institute of Management which took, place at Chonville in May 1949, the question of whether tnere is need for standard terminology and nameiclature in management was discussed. In the opening paper Mr. Winston Rogers, head of the ...
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    Nature 164 (1949), S. 1034-1034 
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    Notes: [Auszug] A RECENT number of the American Mathematical Monthly (56, ijb. 1, Pt. 2, pp. 114; University of Buffalo, N.^; 1 dollar), entitled "Outline of the Histor^X^l Mathematics" by R. C. Archibald, containsia Very remarkable synopsis of the history of mathematics, beginning with the Babylonians and ...
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    Notes: [Auszug] PRE-HEATING seakale crowns in water at 35° C. for three hours, is shffifi by I. F. Storey and N. Montgomery (J. J Sci., 24, Nos. 3 and 4, 214; Dec. 1948) m,gi\P an increased yield of forced kale. About ??^-third more was obtained with ordinary comreercial varieties, and larger increases with now ...
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    Nature 164 (1949), S. 1035-1035 
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    Notes: [Auszug] IN connexion with the Fourth World Power Conference to be held in London during July 10-15, 1950 (see Nature, 162, 988; 1948), a provisional programme has〉6cently been published together with a supplementary booklet containing the titles of papers and/names of authors, corrected to October 27. ...
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    Notes: [Auszug] A TINE Tammes Prize of 500 guilders (about £46) is being oiRred for 1950 and 1952. That for the formeoiyear will be awarded for a study on the cytogeneties of a group of species of Phanerogams, a^ea the other for a study on genes and their chemical activity. The prize-winning papers and others of ...
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    Nature 164 (1949), S. 1041-1042 
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    Notes: [Auszug] THE British Mycplogical Society met at the Imperial ColleA^ojT Science and Technology, London, on O^fcofcfer 2r to discuss the subject of mycorrhizaun points. The programme included two general toapets', two papers on endotrophic infection, andrfourVjapers on the ectotrophic infection of trees. ...
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    Nature 164 (1949), S. 1002-1003 
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    Notes: [Auszug] THE synthesis of the hydrocarbon ovalene, or octabenzonaphthalene (Fig. 1) has recently been described by E. Clar1. We have now examined the crystal structure of this compound and find it to be remarkably similar to that of the analogous hydrocarbon coronene2,3. We ...
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    Nature 164 (1949), S. 1046-1046 
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    Notes: [Auszug] We have postulated that the weak transition which occurs in cubic crystals of beryllium oxyacetate at about 40° C. is a kind of order-disorder transition due to the simultaneous rotation of carboxyl oxygen atoms around the carbon-to-carbon bonds1. In order to see whether ...
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    Nature 164 (1949), S. 1050-1050 
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    Notes: [Auszug] THE electric dipole moments of the α- and β-salicylides (assumed to be disalicylides) were found to be 6.27 and 2.42 D. respectively in benzene solution. The solutions showed no change of polarization with time. The former, being definitely a disalicylide, may therefore be given the cis ...
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    Nature 164 (1949), S. 1051-1051 
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    Notes: [Auszug] SAFRANAL (I) and its glycosidic precursor picrocrocin (the bitter principle of saffron)1 have been shown by Kuhn, Moewus and Wendt2 to play a remarkable part in controlling the sexual characteristics of the hermaphroditic green alga Chlamydomonas eugametos f. ...
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    Nature 164 (1949), S. 1053-1053 
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    Notes: [Auszug] IN connexion with a problem of biosynthesis, we had occasion to prepare a sample of ethanol in which some of the α-hydrogen atoms were replaced by deuterium. This was done by heating propionic acid with deuterium sulphate, recovering the labelled propionic acid and treating its silver salt with ...
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    Nature 164 (1949), S. 1052-1053 
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    Notes: [Auszug] THIS note gives a brief account of a radioactive tracer technique for the detection and estimation of the short-lived aliphatic free radicals; it is being used in both dynamic and static experiments. In a different way, radioactive indicators have previously been used in the study of free ...
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    Nature 164 (1949), S. 1001-1001 
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    Notes: [Auszug] CONVENTIONAL methods of beta-ray measurement for checking the activity of a pure beta-emitter such as phosphorus-32, in therapeutic amounts, have the following disadvantages: (1) The container must be opened, and the sterility of the solutions sent out in sealed ampoules from Harwell) or in ...
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    Nature 164 (1949), S. 1016-1016 
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    Notes: [Auszug] Meetings marked with an asterisk * are open to the public) Monday, December 12 MANCHESTER LITERARY AND PHILOSOPHICAL SOCIETY (in the Reynolds Hill, college of Technology, Manchester), at 5.30 p.m. - mwell: "The Changing Face of Medicine" (Ramsden Memorial Lecture). INSTITUTION OF THE RUBBER ...
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    Nature 164 (1949), S. 1058-1058 
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    Notes: [Auszug] SOME twenty-five years ago, while working in the garden, I noticed that a dragon-fly kept alighting on the handle of a wheel-barrow which I was using. During its absence I was preparing to shift the barrow, and had my hands on the handles when the insect returned; after slight hesitation, it ...
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    Nature 164 (1949), S. 1001-1002 
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    Notes: [Auszug] Benedetti and McGowan1, Mandeville and Scherb2 and Hirzel, Stoll and Wäffler3 have attempted to detect short-lived metastable states of radioactive nuclei by using the method of delayed β-β and β-γ coincidences. Several decay periods have been ...
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    Nature 164 (1949), S. 1004-1004 
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    Notes: [Auszug] IN a letter in Nature, 142, 833 (1938), I described a new method of measuring the velocity of light in which Fizeau's toothed wheel was replaced by a piezo-quartz crystal. When placed in an alternating electric field, this has the property of acting as an intermittent diffraction grating. The ...
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    Notes: [Auszug] IN a recent communication1, Coulman and Petrie propose that low-power aspherical magnifiers should be designed for coincidence of the two monocular fields of vision rather than for absence of distortion, and suggest that this has not hitherto been done. In practice, that is ...
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    Notes: [Auszug] IN the course of studying the role of circulatory changes in the pathogenesis of centrilobular hepatic lesions1,2, we have been attempting by various techniques, including the use of neoprene latex and indian ink3, to clarify certain controversial points in the ...
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    Nature 164 (1949), S. 1013-1014 
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    Notes: [Auszug] PROF. D. THODAY'S suggestion1 (apropos of the work of Dixon and Barlee2) of a possible mechanism of transpiration into a saturated atmosphere, based on the enhanced vapour pressure of convex water surfaces, is an attractive one, especially as it is a logical ...
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    Notes: [Auszug] IN calculations relating to the aerial bactericidal action of certain α-hydroxy acids, it was noted that the calculated rates of diffusion of these acids into air-suspended salivary particles, when plotted against the water content of the particles, did not appear to extrapolate to the expected ...
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    Notes: [Auszug] THE instability of a convex meniscus at its point of maximum curvature to which Dr. Wilson directs attention is interesting. It would presumably result in a flooding of the air-spaces once the limit were passed. Lewis's observations, however, indicate that normally no layer of water is ...
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    Notes: [Auszug] DURING recent work in these Laboratories on the resistance of metals to boiling organic liquids, an investigation of various methods of heating has been carried out. We have found that much higher solution-rates are obtained when the heat of vaporization is supplied through the surface of the ...
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    Notes: [Auszug] APPLICATION are invited for the following appointments on or mentioned: LECTURER IN ELECTRICAL ENGINEERING in the Ministry of Supply Schotl pi" Electronics in the South Midlands-The Establishment OfficM; Ministry of Supply, Est. 3(B)1, The Adelphi, Strand, London, W.C.2 (December 17). ASSISTANT ...
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    Nature 164 (1949), S. 977-978 
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    Notes: [Auszug] FISHERMEN, both amateur and professional, in salt water and in fresh, have long been puzzled by many things concerning the fish that they catch. " Do fish sleep ? What colours can they distinguish ? Do they suffer pain ? How do they find the way ?" are but a few of the questions to which they are ...
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    Nature 164 (1949), S. 988-988 
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    Notes: [Auszug] AIEXAISTDEB MEEK who died on November 2, was born at Broughty Eroughty Eorry in 1865. He was for many years, until his letirement in 1932, professor of zoology at Armstrong College (University of Durham) and directoret the Dove Marine Laboratory. After leaving school, he studied art and then ...
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    Nature 164 (1949), S. 989-989 
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    Notes: [Auszug] DR. R. J. PUMPHBEY, who succeeds Prof. Orton, has for many years been associated with or on the staff of the Zoologicar Deparment at Cambridge. Going into residence in 1925 and winning the Frank Smart Prize in 1999. he has held an unusually wide range of disting ished research ...
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    Nature 164 (1949), S. 990-990 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THE re-opening, at the Wellcome Research Institutions/183 Euston Road, London, N.W.I, of the Wellqjame Historical Medical Library was marked by a hujfeheon attended by a number of distinguished librarians and others interested in the history of medicine and the allied sciences. After the luncheon, ...
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    Nature 164 (1949), S. 991-991 
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    Notes: [Auszug] THE following announcements have recently been _eue by the University of Birmingham. Appoint-Cnts to the Sir Josiah Mason Lectureship are' as follows: 1950, Prof. I. Schapera, professor of social anthropology in the University of Cape Town; 1952, Dr. H. I. P. Hogbin, reader in anthropology, ...
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    Notes: [Auszug] ON December 1 a small but interesting demonstration on altra-violet radiation in industry was given by Hanovia, Ltd., at 3 Victoria Street, London, S.W.l. The demonstration was divided into three pans showing respectively: photochemical and phetobiological reactions; fluorescence and ...
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    Nature 164 (1949), S. 991-991 
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    Notes: [Auszug] AT the annniversary meeting of the Royal Society held OTjr^November 30 the following were elected as officers and Council for the ensuing year: President, Syir Robert Robinson; Treasurer, Sir Thomas Merton; Secretaries, Sir Edward Salisbury and Sir David Brunt; Foreign Secretary, Prof. E. D. ...
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    Nature 164 (1949), S. 992-993 
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    Notes: [Auszug] THE anterior pituitary factors concerned in the initiation of lactation are different from those capable of amplifying an existing milk flow (see reviews, refs. 1, tyf, and Folley and Young3 suggest that the term/galactopoietic' be applied to an anterior pituitary substance which can augment ...
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    Nature 164 (1949), S. 996-996 
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    Notes: [Auszug] ASTRUCTURA map of 20,000 square kilometres of north-yresl/Germany has been on view in the new building (qr the Department of Geology and MineralogyQat'T)xford as part of the exhibition of oilfield daveftjtpment held there to commemorate the openirikflsf the building by the Vice-Chancellor on ...
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    Nature 164 (1949), S. 998-998 
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    Notes: [Auszug] AN International Conference on Science Abstracting, arranged by the United Nations Educational, Scientific andC!uit)tfral Organisation, was held during June 20/·ß5, JIB§9, at Paris, and the Final Act has now bdeln/ffiiwle available (Paris: Unesco House, friUa. Final Act was inspired by the ...
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    Nature 164 (1949), S. 935-936 
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    Notes: [Auszug] THESE two volumes of nearly a-1iiousand pages a$h are the first of a projected Iteiies of ten volunles, two to three volumes being due each year. The object of the series is to provide an up-to-date survey of the field of chemical technology, paWjr is a work of reference for chemists and chemical ...
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    Nature 164 (1949), S. 944-945 
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    Notes: [Auszug] ON September British Tyne a symc Mr. ?, ??(?. H£ Bird Life", Igave cerned A'the ON September By Section D (Zoology) of the British ????f??? held at Newcastle upon the subject of bird behaviour. Mr. P. H. T. Hartley, speaking on "Routines in jcount of some activities con- _. ice of the individual ...
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    Nature 164 (1949), S. 947-947 
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    Notes: [Auszug] PROP. JTORis profejsapf of physiology in the Zurich. M3i^nks to his exceptional originaWfta school teacher, obtained meolieai qualifieajti^flsl and adopted an academic career. H{* jj energy and far-sightedness were responsible the establishment of the High Altitude ResearofuStation of the ...
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    Nature 164 (1949), S. 947-948 
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    Notes: [Auszug] PROF. DIXON'S successor is Dr. D. A. Webb; a scholar of equally wide cultural interests. After graduation en Trinity College, Dublin, he went to TrinityJtfellege, Cambridge, where he obtained the degree of Ph.D. for a thesis on the "Distribution of Metals in the Tissues of Marine Animals". This ...
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    Nature 164 (1949), S. 948-949 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] FOR some years^jpfere the Second World War, the German textile ministries had been short of natural fibres such arf(*ffton and wool. Substitutes therefore were soughtvn rayon and staple fibre, cottonized bast fibres*^IZocfcere)〉^Daper and to a small extent in syr^Aiijiidb such as 'Perlon' and ...
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    Notes: [Auszug] THE difficul'tii'ujiefncient dairying increase rapidly with the %(|pt)i\nt WHnperature, and tropical dairying I'hazards which are not encountered in emperate climate. If children in hot are to be satisfactorily fed, and if, in coflKAries such as India, the predominantly cereal diet of the great ...
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    Nature 164 (1949), S. 949-949 
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    Notes: [Auszug] THE InstitutioXof Civil Engineers has announced the following j*wards for papers read at meetings or published in/The Journal during the session 1948-49. The speridl thanks of the Institution to Prof. J. F. Bakeiyfor his paper on "A Review of Recent Investigations into the Behaviour of Steel Frames ...
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    Nature 164 (1949), S. 953-953 
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    Notes: [Auszug] IN a recent publication, Fr. Arthur B. Williams discusses a stttdAWondertaken into the character and coEaposjdptiia^M the forest cover of Cuyahoga County, QftiUjVis it existed at the time when the first "H if wfrlte men under Moses Cleveland appeared on Rs of the Cuyahoga River in 1796. The native ...
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    Nature 164 (1949), S. 954-954 
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    Notes: [Auszug] ANALOGUES of folio acid have been found capable of inhibiting the growth of the Rous sarcoma in chickens1 and sarcoma 180 in mice2, of causing a remission in leukæmic children3 and of prolonging the survival of leukæmic mice4. The ...
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    Nature 164 (1949), S. 957-957 
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    Notes: [Auszug] Traina and Aleksandrowicz reported recently1 that, in contrast to the findings of Pasteur, Vallery-Radot, Halpern and Holtzer2, guinea pigs which survived a previous exposure to anaphylactic shock during antihistaminic treatment were protected against a second ...
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    Nature 164 (1949), S. 959-959 
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    Notes: [Auszug] WHEN rabbits' blood is defibrinated, the granulocytes, monocytes and platelets adhere to the fibrin fibres and are removed with them. The lymphocytes may then be separated from the red cells by adding dextran1 or fibrinogen2 in solution in normal saline to increase ...
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    Nature 164 (1949), S. 958-959 
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    Notes: [Auszug] THE proposal to introduce lapinized virus as a prophylactic agent in the control of rinderpest in cattle in Nigeria has raised a number of problems associated with the maintenance of large colonies of rabbits. A survey carried out to determine the incidence of infection with E. stiedœ in ...
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    Nature 164 (1949), S. 959-960 
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    Notes: [Auszug] Collins and Morton1 have recently compared Houston's equation2 ... with Macsoll's3 ... where ϵmax. is the molecular extinction coefficient at the maximum of an absorption band the wave-length of which is λm (= ...
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    Nature 164 (1949), S. 963-963 
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    Notes: [Auszug] Partridge1 and Westall2 have stressed the need for the complete removal of electrolytes in preparing solutions for paper chromatography when the subsequent development of the chromatogram involves the use of ammoniacal silver nitrate. The use of ion-exchange ...
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    Nature 164 (1949), S. 972-972 
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    Notes: [Auszug] Nullifeld Foundation Report of the Trustees for the Year ending31 MarcJj^S^SMPp. ]28. (London: Nuffleld Foundation, 1949.) [168 rwork and Management. Report of the BACIE Annual leld at Ashridge, 29th October-lst November 1948. Pp. an: British Association for Commercial and Industrial EduMrfiou, ...
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    Nature 164 (1949), S. 895-896 
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    Notes: [Auszug] IN this second volume, which follows close upon its predecessor (see Nature, 163, 663; 1949), the flfteiitution, occurrence, isolation and properties of several hundred compounds are discussed and documented with a precision and thoroughness (covering the literature up to 1948, inclusive) which ...
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