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  • Nature Publishing Group  (43,478)
  • 2020-2023  (5)
  • 1980-1984  (17,607)
  • 1950-1954  (15,714)
  • 1925-1929
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  • 1
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    Return to rapid ice loss in Greenland and record loss in 2019 detected by the GRACE-FO satellites (2020)
    Nature Publishing Group
    In:  EPIC3Communications Earth & Environment, Nature Publishing Group, 1(1), pp. 1-8
    Details
    Publication Date: 2022-06-20
    Description: Between 2003-2016, the Greenland ice sheet (GrIS) was one of the largest contributors to sea level rise, as it lost about 255 Gt of ice per year. This mass loss slowed in 2017 and 2018 to about 100 Gt yr−1. Here we examine further changes in rate of GrIS mass loss, by analyzing data from the GRACE-FO (Gravity Recovery and Climate Experiment – Follow On) satellite mission, launched in May 2018. Using simulations with regional climate models we show that the mass losses observed in 2017 and 2018 by the GRACE and GRACE-FO missions are lower than in any other two year period between 2003 and 2019, the combined period of the two missions. We find that this reduced ice loss results from two anomalous cold summers in western Greenland, compounded by snow-rich autumn and winter conditions in the east. For 2019, GRACE-FO reveals a return to high melt rates leading to a mass loss of 223 ± 12 Gt month−1 during the month of July alone, and a record annual mass loss of 532 ± 58 Gt yr−1.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 2
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    Arctic glaciers record wavier circumpolar winds (2022)
    Nature Publishing Group
    In:  EPIC3Nature Climate Change, Nature Publishing Group, 12(3), pp. 249-255
    Details
    Publication Date: 2022-06-20
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 3
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    Small sinking particles control anammox rates in the Peruvian oxygen minimum zone (2021)
    Nature Publishing Group
    In:  EPIC3Nature Communications, Nature Publishing Group, 12(1), pp. 1-12
    Details
    Publication Date: 2022-08-15
    Description: Anaerobic oxidation of ammonium (anammox) in oxygen minimum zones (OMZs) is a major pathway of oceanic nitrogen loss. Ammonium released from sinking particles has been suggested to fuel this process. During cruises to the Peruvian OMZ in April–June 2017 we found that anammox rates are strongly correlated with the volume of small particles (128–512 µm), even though anammox bacteria were not directly associated with particles. This suggests that the relationship between anammox rates and particles is related to the ammonium released from particles by remineralization. To investigate this, ammonium release from particles was modelled and theoretical encounters of free-living anammox bacteria with ammonium in the particle boundary layer were calculated. These results indicated that small sinking particles could be responsible for ~75% of ammonium release in anoxic waters and that free-living anammox bacteria frequently encounter ammonium in the vicinity of smaller particles. This indicates a so far underestimated role of abundant, slow-sinking small particles in controlling oceanic nutrient budgets, and furthermore implies that observations of the volume of small particles could be used to estimate N-loss across large areas.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
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  • 4
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    Non-syntrophic methanogenic hydrocarbon degradation by an archaeal species (2022)
    Nature Publishing Group
    In:  EPIC3Nature, Nature Publishing Group, 601(7892), pp. 257-262
    Details
    Publication Date: 2022-08-11
    Description: The methanogenic degradation of oil hydrocarbons can proceed through syntrophic partnerships of hydrocarbon-degrading bacteria and methanogenic archaea1,2,3. However, recent culture-independent studies have suggested that the archaeon ‘Candidatus Methanoliparum’ alone can combine the degradation of long-chain alkanes with methanogenesis4,5. Here we cultured Ca. Methanoliparum from a subsurface oil reservoir. Molecular analyses revealed that Ca. Methanoliparum contains and overexpresses genes encoding alkyl-coenzyme M reductases and methyl-coenzyme M reductases, the marker genes for archaeal multicarbon alkane and methane metabolism. Incubation experiments with different substrates and mass spectrometric detection of coenzyme-M-bound intermediates confirm that Ca. Methanoliparum thrives not only on a variety of long-chain alkanes, but also on n-alkylcyclohexanes and n-alkylbenzenes with long n-alkyl (C≥13) moieties. By contrast, short-chain alkanes (such as ethane to octane) or aromatics with short alkyl chains (C≤12) were not consumed. The wide distribution of Ca. Methanoliparum4,5,6 in oil-rich environments indicates that this alkylotrophic methanogen may have a crucial role in the transformation of hydrocarbons into methane.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
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  • 5
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    The impact of faulting complexity and type on earthquake rupture dynamics (2022)
    Nature Publishing Group
    Details
    Publication Date: 2022-10-31
    Description: The statistical properties of seismicity are known to be affected by several factors such as the rheological parameters of rocks. We analysed the earthquake double-couple as a function of the faulting type. Here we show that it impacts the moment tensors of earthquakes: thrust- faulting events are characterized by higher double-couple components with respect to strike- slip- and normal-faulting earthquakes. Our results are coherent with the stress dependence of the scaling exponent of the Gutenberg-Richter law, which is anticorrelated to the double- couple. We suggest that the structural and tectonic control of seismicity may have its origin in the complexity of the seismogenic source marked by the width of the cataclastic damage zone and by the slip of different fault planes during the same seismic event; the sharper and concentrated the slip as along faults, the higher the double-couple. This phenomenon may introduce bias in magnitude estimation, with possible impact on seismic forecasting.
    Description: Published
    Description: 258
    Description: 2T. Deformazione crostale attiva
    Description: JCR Journal
    Keywords: double couple ; damage zone ; different fault type ; seismicity ; tectonics ; fault type ; seismicity ; 04.06. Seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 6
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    Relative departures in July temperatures in northern Canada for the past 6,000 yr (1981)
    Nature Publishing Group
    In:  Nature, 289 (5794). pp. 164-167.
    Details
    Publication Date: 2016-04-11
    Description: There has been concern about recent temperature trends and the future effects of CO2 concentrations in the atmosphere1,2; but instrumental records only cover a few decades to a few centuries and it is essential that proxy data sources, such as pollen spectra from peats and lake sediments, be carefully interpreted as climate records. Several workers have shown statistically significant associations between the modern pollen rain and climatic parameters, an approach that by-passes the recognition of pollen/vegetation units. Statistically defined equations that associate abiotic and biotic elements are called transfer functions. We report here on the application of transfer function equations to nine middle and late Holocene peat and lake sediment sequences from northern Canada (Fig. 1).
    Type: Article , PeerReviewed
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  • 7
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    Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization (1980)
    Nature Publishing Group
    In:  Nature, 288 (5788). pp. 260-263.
    Details
    Publication Date: 2016-03-01
    Description: Organic detritus passing from the sea surface through the water column to the sea floor controls nutrient regeneration, fuels benthic life and affects burial of organic carbon in the sediment record. Particle trap systems have enabled the first quantification of this important process. The results suggest that the dominant mechanism of vertical transport is by rapid settling of rare large particles, most likely of faecal pellets or marine snow of the order of 〉200 μm in diameter, whereas the more frequent small particles have an insignificant role in vertical mass flux4–6. The ultimate source of organic detritus is biological production in surface waters of the oceans. I determine here an empirical relationship that predicts organic carbon flux at any depth in the oceans below the base of the euphotic zone as a function of the mean net primary production rate at the surface and depth-dependent consumption. Such a relationship aids in estimating rates of decay of organic matter in the water column, benthic and water column respiration of oxygen in the deep sea and burial of organic carbon in the sediment record.
    Type: Article , PeerReviewed
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  • 8
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    Meandering of the subtropical front south-east of the Azores (1982)
    Nature Publishing Group
    In:  Nature, 300 (5889). pp. 245-246.
    Details
    Publication Date: 2018-03-08
    Description: A subtropical front was observed in the area south and southeast of the Azores during cruises of FS Meteor and FS Poseidon in early 1982. The front has a basically west–east extension, with considerable meandering observed. Meso-scale eddies are found on both sides. The overall flow pattern corresponds to earlier results on geopotential differences in the upper northeast Atlantic, but the baroclinic transport of the order of 107 m3 s−1 is found to be concentrated in a 60-km wide jet. We suggest here that the current band is part of the gyre circulation, resulting from a branching of the North Atlantic Current.
    Type: Article , PeerReviewed
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  • 9
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    Fluxes of biogenic components from sediment trap deployment in circumpolar waters of the Drake Passage (1982)
    Nature Publishing Group
    In:  Nature, 299 (5879). pp. 145-147.
    Details
    Publication Date: 2019-01-21
    Description: Circumpolar surface waters dominate the circulation of the Southern Ocean and sustain one of the ocean's largest standing stocks of biomass thereby producing a significant output of biogenic components, mainly diatoms, to the bottom sediments. Generally transit of biogenic matter from the sea surface to the sea floor affects nutrient regeneration fuels benthic life and transfers signals to the sediment record1–5. Reliable quantification of the relationship between biological production, fractionation of skeletal and tissue components and bottom sediment accumulation depends on direct vertical flux measurements from sediment trap deployments6–9, which have proved to be most scientifically productive10–13. We now present data on vertical mass fluxes from the Southern Ocean and evidence for strong biogeochemical fractionation between organic carbon-, nitrogen- and phosphorus-containing compounds, siliceous and calcareous skeletal remains, and refractory aluminosilicates.
    Type: Article , PeerReviewed
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  • 10
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    Glacial and interglacial wind regimes over the eastern subtropical Atlantic and North-West Africa (1981)
    Nature Publishing Group
    In:  Nature, 293 (5829). pp. 193-196.
    Details
    Publication Date: 2016-09-02
    Description: Analysis of aeolo-marine dust deposits in the subtropical eastern Atlantic enables the strength of the major wind patterns during the late Quaternary to be evaluated and gives an insight into the climate of North Africa.
    Type: Article , PeerReviewed
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  • 11
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    The first fossil cephalopod statoliths to be described from Europe (1980)
    Nature Publishing Group
    In:  Nature, 287 (5783). pp. 628-630.
    Details
    Publication Date: 2016-11-15
    Description: Statoliths of cephalopods are small, hard calcareous stones which lie within the cartilaginous skulls of octopods, sepioids and teuthoids1. Fossil statoliths, clearly belonging to genera which are alive today, have previously been described from 11 Cenozoic deposits spanning from the Eocene to the Pleistocene in North America2–5. Such statoliths are of particular interest because they provide a means of studying the evolution of living cephalopod groups which have no calcareous shells, including the cosmopolitan and numerous teuthoids and octopods. Here, the first cephalopod statoliths to be recognized in European deposits are described and identified as Loligo sp. They are compared with the North American fossil Loligo species and statoliths removed from the two living Loligo species of Europe.
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  • 12
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    Mantle plume noble gas component in glassy basalts from Reykjanes Ridge (1983)
    Nature Publishing Group
    In:  Nature, 305 (5933). pp. 403-407.
    Details
    Publication Date: 2016-11-23
    Description: Basalts from the Reykjanes Ridge contain noble gases delivered from the non-degassed lower mantle by the Iceland plume. These lower mantle gases are thought to be a mixture of planetary and solar components, as would be expected if the Earth accreted from fine silicate particles.
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  • 13
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    Giant squids may die when exposed to warm water currents (1983)
    Nature Publishing Group
    In:  Nature, 303 (5916). pp. 422-423.
    Details
    Publication Date: 2019-04-16
    Description: Strandings of the giant squid, Architeuthis monachus (Steen-strup), have always stirred attention because of the rarity and enormous size of these cephalopods. These animals have never been observed in their natural habitat and little is known about their physiology and ecology. Stranding of giant squids in Newfoundland waters has been correlated with the inflow of warm water, suggesting that increased temperature may be causing their death1. Squids have also been carried to the Norwegian coast with the warm North Atlantic current2 and on 23 August 1982 a live specimen was caught off Radöy near Bergen, Norway (Fig. 1). This catch gave an unprecedented opportunity to study the effects of temperature on the oxygen binding properties of blood from the giant squid. The present finding of an excess of a fourfold decrease in O2 affinity when temperature is increased from 6.4 to 15°C strongly suggests that giant squids may suffocate from arterial desaturation when increased ambient temperatures are experierced.
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  • 14
    Electronic Resource
    Electronic Resource
    Polarized Ultra-Violet Absorption of Anthracene (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 566-566 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Finding the polarization of observed band systems to check the calculations is more difficult than finding the wave-length and intensity, and has not often been attempted in aromatic hydrocarbons except in the weakest band systems, for which quite thick crystals give measurable optical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171566a0
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  • 15
    Electronic Resource
    Electronic Resource
    Centrifugation Potentials in Sols of Silver Iodide (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 568-568 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Here m'n a DL, 6i2 67ryf 2f (1) Here m'n is the apparent mass of dispersed substance per cm.3, cr the electrical conductivity, T) the viscosity, D the dielectric constant of the sol, co the angular speed of rotation, and JR2, Itl9 the distances from the axis of the two points between which the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171568a0
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  • 16
    Electronic Resource
    Electronic Resource
    Overseas Development and Man-Power Problems (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 405-408 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Volta River aluminium scheme set forth in a White Paper issued in November 1952 is of exceptional interest, quite apart from its possible contribution to the supply to the industry of the United Kingdom of aluminium from within the 'sterling area' at competitive prices. Under the scheme the ...
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    URL: http://dx.doi.org/10.1038/171405a0
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  • 17
    Electronic Resource
    Electronic Resource
    Wave Mechanics for Beginners (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 409-410 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH the principles of wave mechanics IX have been well established for almost a quarter of a century, there is, at present, no unanimity of view regarding the most satisfactory way of presenting the subject to the beginner. A glance at the introductory chapters of the numerous books on wave ...
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    URL: http://dx.doi.org/10.1038/171409b0
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  • 18
    Electronic Resource
    Electronic Resource
    Prof. W. H. Hobbs (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 416-417 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WILLIAM HERBERT HOBBS was born at Worcester, Massachusetts, on July 2, 1864, and died at Ann Arbor, Michigan, early in January 1953. He was educated at the Worcester Polytechnic Institute, where he made a special study of industrial design. Upon graduation in June 1883 he taught for a year at a ...
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    URL: http://dx.doi.org/10.1038/171416a0
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  • 19
    Electronic Resource
    Electronic Resource
    Cytochrome Oxidase and the ‘Pasteur Enzyme’ (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 413-416 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT was shown in 1925 that the multibanded absorption spectrum of cytochrome belongs to three hsemochromogen-like components, denoted as cyto-chromes a, b and c, the oxidation and reduction of which that is, their catalytic activity in respiration can easily be observed in living intact cells1. ...
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    URL: http://dx.doi.org/10.1038/171413a0
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  • 20
    Electronic Resource
    Electronic Resource
    Porphobilinogen: X-Ray Crystallographic Determination of Molecular Weight (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 876-877 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A PORPHYBIN precursor, porphobilinogen, was recently isolated by R. G. Westall in the form of the pure crystalline base1 from the urine of patients suffering from acute porphyria. Chemical evidence by Westall1 and by G. H. Cookson and C. Rimington (accompanying communication) suggests an empirical ...
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    URL: http://dx.doi.org/10.1038/171876a0
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  • 21
    Electronic Resource
    Electronic Resource
    A Variant of Bacterium coli (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 879-880 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Electron micrographs of J5. coli shadowed with 80 A. of chromium metal. l(a) normal type fixed in 2 per cent osmic acid vapour (x 13,600); 1(6) normal type fixed in 5 per cent formalin (x 11,200). (2) Variant fixed in 2 per cent osmic acid vapour (x 8,800) 880 In the normal type of this ...
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    URL: http://dx.doi.org/10.1038/171879a0
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  • 22
    Electronic Resource
    Electronic Resource
    Serum Proteins in Africans (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 880-881 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This work has now been repeated, and in the main confirmed, using a micro-electrophoresis (Antweiler) method for estimating the serum protein fractions. The proteins were measured in the ascending limb in barbitone buffer of pH 8-6, ionic strength 0-12. By this method serum protein-levels of normal ...
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  • 23
    Electronic Resource
    Electronic Resource
    A Possible New Principle in Taxonomy, and its Evolutionary Implications (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 883-883 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The implication of the non-congruence principle seems to be that differences of the sort used by taxonomists normally evolve one at a time. If any general statement can be made about taxonomic characters, it is probably that they exhibit more-or-less marked discontinuities but do not segregate like ...
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    URL: http://dx.doi.org/10.1038/171883a0
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  • 24
    Electronic Resource
    Electronic Resource
    A Predator on Creontiades pallidus , Ramb. (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 886-886 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For a number of years C. pallidus has been thought to be a pest of cotton grown in the Tokar Delta; Tokar is about a hundred miles south of Port Sudan and about thirty miles inland from the Red Sea coast. The insect occurs all along the coastal cultivations, which stretch from the northern border ...
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  • 25
    Electronic Resource
    Electronic Resource
    Tertiary Ocean Bottom Temperatures (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 887-888 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This method is based on the fact that the relative rates of deposition of the oxygen isotopes in the calcium carbonate are a function of temperature. The temperature of deposition is thus determinable from a suitably accurate measurement of the relative abundances of the oxygen isotopes in a shell. ...
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  • 26
    Electronic Resource
    Electronic Resource
    The New Classical Electrodynamics (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 890-892 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (a) Differentiability of the 4-velocity field va = dya/ds under the Lorentz law of motion, that is, AapvP = kdva/ds = kva,pv&. (L) (b) The requirement that Aa kva be orthogonal to vat that is, Aava = k. (D) Here s is the proper time (in light-velocity units) along the world-line ya of any ...
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  • 27
    Electronic Resource
    Electronic Resource
    Appointments Vacant (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 893-894 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned: ASSISTANT EXPERIMENTAL OFFICER (with sound theoretical and practical knowledge of electronic and controlling instruments) IN THE PHYSICS DEPARTMENT The Secretary, National Institute for Research in Dairying, ...
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  • 28
    Electronic Resource
    Electronic Resource
    Survey of Food Consumption and Expenditure in Great Britain (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 426-426 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN Great Britain the War-Time Food Survey was almost entirely limited to urban working-class households, and, as the National Food Survey, it continued in the same form until the end of 1949. Since then, however, an attempt has been made to obtain a more representative sample, so that all classes ...
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    URL: http://dx.doi.org/10.1038/171426a0
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  • 29
    Electronic Resource
    Electronic Resource
    A New Blood-Group Antibody, Anti- Jk b (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 431-431 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The finding of the antibody corresponding to the antigen, and gene, Jkb is here reported. It has been found in the serum of Mrs. W. Mrs. W. gave birth to full-term healthy infants in 1937 and 1940 and had miscarriages in 1944 and 1951. There is no history of haemolytic disease of the newborn. She ...
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    URL: http://dx.doi.org/10.1038/171431a0
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  • 30
    Electronic Resource
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    Function and Location of Enzymes in Cells (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 815-816 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a meeting of the Royal Society on March 12 the subject of "The Function and Location of Enzymes in Cells" was discussed by a number of workers from Great Britain and abroad. Prof. J. Z. Young (Department of Anatomy, University College, London), in opening the discussion, emphasized that the ...
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    Royal Institution (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 819-819 
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    Notes: [Auszug] Sir Lawrence Bragg, O.B.E., F.R.S. AFTER the annual meeting of the members of the Royal Institution held on May 1, Lord Brabazon of Tara (president) announced that the managers had appointed Sir Lawrence Bragg to the office of Fullerian professor of chemistry, resident professor and director of ...
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    Bulletin of the Italian Society of Geophysics and Meteorology (1953)
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    Nature 171 (1953), S. 821-821 
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    Notes: [Auszug] THE formation of the Italian Society of Geophysics and Meteorology in 1952 (see Nature, 170, 144; 1952) has now been followed by the first number of the Society's Bulletin (Bol. Soc. Ital. Geof. Met., 1, No. 1; 1953. From the Society at Via Balbi 5, Genova; 3000 lire or 5 dollars a year). The ...
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    Exhibition in the Science Museum, London, of Historic Books on Machines (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 820-821 
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    Notes: [Auszug] THE second of a series of special exhibitions of historic books relative to science and technology was opened at the Science Museum, London, on May 1 and will remain on view to the public, free of charge, until August 30 (weekdays, 10 a.m.-6 p.m.; Sundays, 2.30-6 p.m.). The exhibition deals with ...
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    Press Guide to British Chemicals and their Manufacturers (1953)
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    Nature 171 (1953), S. 821-822 
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    Notes: [Auszug] THE Association of British Chemical Manufacturers has recently published a small book entitled "Press Guide to British Chemicals and their Manufacturers'* (pp. 76; March 1953) and two thousand copies have been issued in the first instance to the national, provincial and technical press (including ...
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    Testing of Bearing Properties of Metals (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 827-827 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ENGINEERS and metallurgists have long been faced with the problem of assessing the bearing properties of any particular bearing alloy. One obvious method (and perhaps the best) has been to test the materials under practical working conditions; but, although this may be effective, it is extremely ...
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    A High-Resolution Aerial for Radio Astronomy (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 831-833 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN observations at radio wave-lengths, it is impossible to obtain an angular resolution which is comparable with that of even a small telescope. Even a relatively large object like the sun, which has been studied intensively by radio astronomers, is difficult to resolve at radio wave-lengths. It is ...
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    Tensile Strength of Liquid Nitrogen (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 835-836 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A review of the available experimental methods2 of measuring the tensile strength of a liquid suggests that the static and dynamic tensile strengths of liquids are different. Since the tensile strength of a solid is a static concept, it seems reasonable to consider the static tensile strength of a ...
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    Atmospherics with Very Low-frequency Components (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 837-838 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] An extensive programme of observations of slow tails has recently been completed at the Cavendish Laboratory. Throughout the programme, the kind co-operation of the Meteorological Office "Sferics" Organization2 has greatly enhanced the value of the work by locating the sources of individual ...
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    Use of Ion-Exchange Resins in Paper Chromatography of Sugars (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 841-841 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The effect was investigated using columns 1 cm. diameter and 2-5 cm. long of 'Amberlite IRA400' (OH form), and it was found that 2 mgm. of glucose, for example, was completely removed from solution by such a column and, with the quantity used, none or at most 10 per cent of the sugar was ...
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    Electrolytic Polishing of Lead in a Sodium Acetate–Acetic Acid Bath (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 843-843 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For most of our experimental work, we employed cylindrical lead specimens, about 1 cm. in diameter and mounted with the exposed face vertical. The electrical connexion to the back surface, and also this surface, were coated with a thermal-setting insulating varnish. A graphite or platinum cathode ...
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    Natural Origin of Optically Active Substances and Optical Resolution by Symmetric Agents (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 843-844 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A remarkable susceptibility to nucleation was recorded by Anderson and Hill4, who showed that when optically inactive atropine sulphate was crystallized in a laboratory in which the ()-form had been racemized, the first crop was almost invariably ()-rotatory, owing to inoculation from the ...
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    Effect of Dietary Penicillin on Blood Composition and Œstrogen-induced Oviduct Growth in the Folic-Acid Deficient Chick (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 845-846 
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    Notes: [Auszug] For the experiment eighty Light Sussex female chicks were reared for two weeks on a commercial chick mash and then placed on a purified folic-acid deficient diet similar to that of Lillie and Briggs6, with the addition of vitamin B]2 (Distivif) at a level of 5 (igm./100 gm. The chicks were ...
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    British Dependencies in the Caribbean and North Atlantic (1953)
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    Nature 171 (1953), S. 380-381 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PROF. W. M. MACMILLAJSTS "Warning from the West Indies" was published in 1936: the 'warning' of the book's title, he wrote later, was "originally an appeal, and looked to the future". How far his warnings and those of others have been heeded may be judged by a recently issued Colonial Office ...
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    Leaf-Mining Insects (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 763-764 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PRIMARILY, this book is an investigation into the feeding patterns of leaf-mining insects and is the result of years of research by Prof. E. M. Hering on the leaf-mining habit. It is an attempt, based on the nature of the damage inflicted on the plant, which is in itself dependent upon the specific ...
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    [Book Reviews] (1953)
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    Nature 171 (1953), S. 765-765 
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    Source: Nature Archives 1869 - 2009
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    Notes: [Auszug] THIS is an omnibus volume intended "to acquaint JL students and investigators with the more general methods employed in the study of the proteins, and to give a summary of the current knowledge and advances of the subject matter". Its aim is therefore nothing less than a comprehensive treatment of ...
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    [Book Reviews] (1953)
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    Nature 171 (1953), S. 765-765 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is difficult to believe that a small book of a hundred pages on sound can cover adequately the required ground for all stages of the sixth form and up to university scholarship-level, no previous knowledge of the subject being assumed. This, however, is what is claimed for this book which, on ...
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    The Fifth Pakistan Science Conference and the Pakistan Academy of Science (1953)
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    Nature 171 (1953), S. 771-772 
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    Notes: [Auszug] IN February Dr. George Taylor and I, representing the British Association, were the guests of the Pakistan Association for the Advancement of Science for its Fifth Science Conference at Lahore, and for a study tour of Pakistan. The Conference was opened by the Governor of the Punjab, who spoke of ...
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    Contributions of Science to Peace (1953)
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    Nature 171 (1953), S. 775-775 
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    Notes: [Auszug] IN his Alexander Wood Memorial Lecture for 1953, "Contributions of Science to Peace", delivered at Friends House, London, on February 18 (pp. 28 ; from the Fellowship of Reconciliation, 38 Gordon Square, London, W.C.I ; Is. Qd.), Prof. C. A. Coulson rejects equally the view that science alone can ...
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    British Agricultural History Society: Inaugural Conference in Reading (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 775-775 
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    Notes: [Auszug] THE inaugural conference of the British Agricultural History Society was held at the University of Reading on April 13 and was attended by more than a hundred people representing a very wide variety of interests and professions from all over the British Isles. Sir James Scott Watson addressed the ...
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    International Congress on Electroacoustics (1953)
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    Nature 171 (1953), S. 776-776 
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    Notes: [Auszug] AN International Congress on Electroacoustics will be held in the Netherlands during June 16-24 under the auspices of the International Commission on Acoustics of the International Union of Pure and Applied Physics. The Congress will open in the Hague on June 16 and on the following day will move ...
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    Announcements (1953)
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    Nature 171 (1953), S. 777-777 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIB ROBEBT ROBINSON, Waynflete professor of chemistry in the University of Oxford, has been awarded the Priestley Medal of the American Chemical Society, the Society's highest award. SIB JOHN LENNABD-JONES has been awarded the Hopkins Prize of'the Cambridge Philosophical Society for his work on ...
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    Scottish Branch of the Science Masters' Association: Annual Meeting in Edinburgh (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 779-780 
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    Notes: [Auszug] THE Scottish Branch of the Science Masters' Association held its annual meeting during April 7-10 at the Heriot-Watt College, Edinburgh, under the presidency of Dr. H. G. Nisbet, principal of the College. In his address, on "Some Applications of Physics in the Fuel and Oil Industry", Dr. Nisbet ...
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    Rothamsted Experimental Station: Report for 1951 (1953)
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    Nature 171 (1953), S. 780-781 
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    Notes: [Auszug] THE report of the Rothamsted Experimental Station for 1951 shows that the station has again been the venue of a number of important conferences, that overseas visitors have been even more numerous than in previous years, and that the services of members of the Rothamsted staff continue to be sought ...
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    Effect of Nervous Stimulation on the Arterio-Venous Oxygen and Carbon Dioxide Differences Across the Kidney (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 784-785 
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    Notes: [Auszug] THE kidney usually receives about 25 per cent of the cardiac output1 and thus probably has far more oxygen available than it can extract under ordinary metabolic conditions. This same high rate of tissue-flow greatly dilutes the carbon dioxide returning to the circulation, in relation to other ...
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    Calculation of Electron-Density Distribution in Crystals with the Help of Convolution Operations (1953)
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    Nature 171 (1953), S. 785-787 
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    Notes: [Auszug] THE electron density distribution p of an infinitely large crystal is usually represented by a Fourier series, where and i and ~ £ f(bh) exp vr h /z-ii -f hzbz + Vr Vr Vr (1) (2) (3) (bjbjta) ai * a3 an-d j, 62 ar the three fundamental-vectors of lattice cells having the ...
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    Identification of 4-Methyl- D -glucuronic Acid in Eucalyptus regnans Wood (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 792-792 
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    Notes: [Auszug] White8 and Smith9 have shown, by different methods, that the acid hydrolysate from mesquite gum (an exudate from mesquite wood) contains 4-methyl-D-glucuronic acid residues. It has now been demonstrated that the acid hydrolysate from Eucalyptus regnans F. v. M. wood also contains ...
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    National Physical Laboratory, Teddington: Annual Report for 1951 (1953)
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    Nature 171 (1953), S. 337-338 
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    Notes: [Auszug] THE annual report for 1951 of the executive committee of the National Physical Laboratory, Teddington, was presented to the meeting of the general board held on May 23 last and has since been published*. It consists of a general survey of the activities of the Laboratory and its various ...
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    Prepupal Moult in the Blowfly ( Calliphora Erythrocephala ) (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 341-342 
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    Notes: [Auszug] THE occurrence of a fourth, prepupal, moult in cyclorrhaphous dipterous larvae was first established by Snodgrass1 for Rhagoletis pomonella Walsh. This moult separates the so-called pre-pupa from the true pupa. Fraenkel2 observed a similar moult within the puparia of Calliphora, Lucilia, Phormia ...
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    Myoglobin from Carp Muscle (1953)
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    Nature 171 (1953), S. 345-346 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Our experiments were carried out with the muscles of these lateral red bands from the carp (Cyprinus carpio). The muscles are removed and kept frozen at 20 C. Before extraction, they are cut into slices 40 pi thick with an automatic freezing microtome and extracted twice for 1 hr. in the cold with ...
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    Structure of the Nucleic Acids (1953)
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    Nature 171 (1953), S. 346-346 
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    Notes: [Auszug] A detailed description of the structure is appearing in the February 1953 issue of the Proceedings of the National Academy of Sciences of the United States of ...
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    Synthesis of L -Ascorbic Acid in Plants and Animals (1953)
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    Nature 171 (1953), S. 348-349 
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    Notes: [Auszug] The experimental facts are as follows. The y-lactones of D-glucuronic acid and L-gulonic acid, when fed to cress seedlings or injected into rats, were found to be transformed, into L-ascorbic acid. D-Galacturonic acid methyl ester, and L-galactonic acid y-lactone behaved similarly. No other sugar ...
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    Council for the Promotion of Field Studies (1953)
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    Nature 171 (1953), S. 491-492 
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    Notes: [Auszug] THE annual report of the Council for the Promotion of Field Studies for 1951-52 maintains the high standard, in presentation and in interest, which we have already, within ten years, come to expect of fche Council's reports. With the director's report, and those of the wardens and the accounts, are ...
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    Population Changes in Europe Since 1939 (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 494-494 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SHORTLY after the end of the Second World War the United Nations Economic Commission for Europe began a survey of European man-power. Yet the present cannot be understood without a knowledge of the past, and it quickly became clear that the demographic upheaval caused by the War was largely ...
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    [Book Reviews] (1953)
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    Nature 171 (1953), S. 496-496 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS is the third compilation issued by Prof. O. K. \Buros, the last being published in 1941. It assembles in one large well-printed volume the reviews of books on statistical methodology published in English during the decade 1941-50 and contains 842 review excerpts from 112 journals covering 342 ...
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    Magnetic Properties of Rocks (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 500-502 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE significance of the natural remanent magnetism of igneous and sedimentary rocks has not yet been determined. On one hand, there is the hypothesis that the direction of magnetization can be interpreted in terms of a widely varying magnetic field and, on the other, that the adverse polarizations ...
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    Upwelling in the Benguela Current (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 497-500 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Benguela Current is one of the major features of the circulation of the South Atlantic Ocean. Extending northwards along the African coast from the neighbourhood of Cape Town to about lat. 15 S., the current is a region of up welling of relatively cold water rich in nutrient. The resultant ...
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    Physical Chemistry in the Chester Beatty Research Institute, London: Dr. J. A. V. Butler (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 503-503 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR. J. A. V. BTJTLER, who has just been appointed to the recently established chair of physical chemistry in the University of London tenable at the Chester Beatty Research Institute (Institute of Cancer Research, Royal Cancer Hospital), graduated in 1921 in the University of Birmingham, of which ...
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    Appointments Vacant (1953)
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    Nature 171 (1953), S. 803-804 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned : ASSISTANT LECTURER IN MATHEMATICS The Registrar, The University, Reading (May 9). COLVILLB FELLOWSHIP TENABLE IN THE DEPARTMENT OF CHEMISTRY The Professor of Chemistry, Royal Technical College, George ...
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    Reports and other Publications (1953)
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    Nature 171 (1953), S. 804-804 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (not included in the monthly Books Supplement Great Britain and Ireland Proceedings of the Royal Irish Academy. Vol. 55, Section A, No. 4 : Solar Eclipses visible in Ireland between A.D. 400 and A.D. 1000. By F. J. O'Connor. Pp. 61-72. Is. Qd. Vol. 55, Section A, No. 5 : A New Quaternion Approach ...
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    Impact of Man on British Wild Life (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 714-715 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE wild life of Britain has been subjected to constant changes from the earliest times through the influence of man, who has introduced new plants and animals, driven others away, and altered the environment of those that have survived his interference. The dominating factor in the life of any ...
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    Seasoning Behaviour of Indian Timbers (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 504-504 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Indian Forest Bulletin, No. 154 (new series), M. A. Rehman, of the Wood Seasoning Branch of the Forest Research Institute, Dehra Dun, discusses "The Seasoning Behaviour of Indian Timbers" (Part 1; pp. 5+1 plate; Delhi: Manager of Publications, 1952; 8 annas or 9d.). In the days before the ...
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    Nuclear Research in Yugoslavia (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 728-728 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE growth and development of nuclear research in Yugoslavia, and of the Institut de Recherches sur la structure de la Matiere at Vincha, near Belgrade, is mainly due to the efforts of Prof. P. Savich, the present head of the Chemistry Laboratory. When, late in 1948, the building of the Institute ...
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    Nutrition Society Conference on Scurvy (1953)
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    Nature 171 (1953), S. 729-729 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Nutrition Society is holding a two-day conference in Edinburgh during May 22-23, in honour of the bicentenary of the publication of James Lind's "Treatise of the Scurvy". After an opening ceremony in the University Upper Library, Surgeon Vice-Admiral Sir Sheldon Dudley will give an address on ...
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    British Non-Ferrous Metals Research Association: Open Days (1953)
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    Nature 171 (1953), S. 731-732 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING the week beginning March 23 the British Non-Ferrous Metals Research Association held open days during which representatives of members and other industrial companies, university staffs and government scientific workers were invited to visit the laboratories at Euston Street, London, N.W.I. A ...
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    Microsomal Particles of Normal Cow's Milk (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 734-735 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HITHERTO, cow's milk has been considered to contain particulate components belonging to three categories, namely : (1) blood cells, leucocytes, bacteria and other readily sedimentable 'foreign' material ; (2) butterfat globules ; and (3) particles of the casein - calcium phosphate complex. However, ...
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    Molecular Configuration in Sodium Thymonucleate (1953)
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    Nature 171 (1953), S. 740-741 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SODIUM thymonucleate fibres give two distinct types of X-ray diagram. The first corresponds to a crystalline form, structure A, obtained at about 75 per cent relative humidity; a study of this is described in detail elsewhere1. At higher humidities a different structure, structure B, showing a ...
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    Hydrolysis of Anhydrides by Esterases (1953)
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    Nature 171 (1953), S. 744-745 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (1) Carboxylic acid anhydrides are split both by acetylcholine est erase and by liver esterase. This cannot be demonstrated 'directly' by adding the substrate to the buffered enzyme solution, since spontaneous hydrolysis of such anhydrides in dilute aqueous media is very rapid. We have therefore ...
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    Enzymatic Transoximation (1953)
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    Nature 171 (1953), S. 745-745 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The enzyme was prepared from silkworms. 2 gm. of digestive organ-free tissues of fifth instar larvae was ground and centrifuged twice after adding water. The residue was mixed with 3 ml. of 0-01 M pyruvic acid oxime, 3 ml. of 0-01 M acetaldehyde and 3 ml. of 0-01 M acetone and then diluted with ...
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    Mucin Secretion in the Ewe's Oviduct (1953)
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    Nature 171 (1953), S. 750-750 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In this investigation it was found that material positive to Schiff's periodic acid1 was secreted by the non-ciliated epithelial cells during pro-oestrus and oestrus. In pro-oestrus the secretory globules extended on each side of the nucleus towards the proximal part of the cell, whereas in oestrus ...
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    Structure of the Angiosperm Inflorescence Apex (1953)
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    Nature 171 (1953), S. 751-752 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Anatomical investigations have been carried out by us on certain members of the Cruciferse where the main inflorescence definitely terminates the leafy axis. Of the plants examined, Arabidopsis thaliana (L.) Heynh. proved the most instructive because it was possible to fix material grown under ...
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    Variability in the X-ray Diagram of the Cell Walls of the Marine Alga Spongomorpha (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 752-753 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] These conclusions still stand for Cladophora and therefore presumably for the whole group of algse with the Cladophora type of structure. While making a re-examination of Spongomorpha, however, in preparation for a projected publication on this and other differences from Cladophora, it has been ...
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    Infectivity of Aphids after Several Hours on Tobacco infected with Potato Virus Y (1953)
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    Nature 171 (1953), S. 755-756 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Regular excretion of honeydew is generally accepted as evidence that,, an aphid is imbibing liquid from a plant2, and previous work has shown that continuously feeding M. persicce usually have the stylets inserted into the phloem3. To learn whether M. persicce is infective after excreting regularly ...
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    Appointments Vacant (1953)
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    Nature 171 (1953), S. 757-758 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] APPLICATIONS are invited for the following appointments on or before the dates mentioned : LECTURER IN THE HISTORY OF MECHANICAL ENGINEERING-The Registrar, King's College, Newcastle^upon-Tyne (April 30). ASSISTANT LECTURER IN BIOCHEMISTRY at the University of Malaya, Singapore-The Secretary, ...
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    Identification of Common Weeds (1953)
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    Nature 171 (1953), S. 666-667 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FARMERS and gardeners must eradicate weeds, and in order to do so with the maximum of efficiency it is desirable that the weeds should be speedily identified, especially if the use of weedkillers is contemplated. But a weed is only a plant which is growing where it either is not wanted or is doing ...
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    The South Atlantic: Land Bridges or Continental Drift? (1953)
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    Nature 171 (1953), S. 669-671 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE proceedings of the symposium on "The Role of the South Atlantic Basin in Biogeography and Evolution", held by the Society for the Study of Evolution in New York during December 28-29, 1949, have now been handsomely published under the title of "The Problem of Land Connections across the South ...
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    The Practice of Scientific Research (1953)
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    Nature 171 (1953), S. 451-451 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE title of Prof. E. Bright Wilson's book might suggest one of those works which, though they often stimulate discussion, have not been known to influence any actual research. On the contrary, the present book mainly comprises practical advice. After a short chapter more or less about why a ...
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    Technical Resources of Industrial Firms (1953)
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    Nature 171 (1953), S. 676-676 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN reply to a question in the House of Commons on March 31, Mr. A. H. E. Molson, Parliamentary Secretary to the Ministry of Works, representing the Lord President of the Council, stated that the Manchester Joint Research Council's survey of the technical resources of industrial firms is complete, ...
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    Storm Damage to Woodlands in Scotland on January 31, 1953 (1953)
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    Nature 171 (1953), S. 454-456 
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    Notes: [Auszug] THE storm on Saturday, January 31, 1953, 1 caused widespread and serious damage to woodlands in the region of Scotland north of the River Tay and east of Inverness. This storm, which the day before had caused the sinking of the Princess Victoria, and on the evening of the same day was responsible ...
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    Chemical Society: Officers (1953)
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    Nature 171 (1953), S. 678-678 
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    Notes: [Auszug] OFFICERS of the Chemical Society have been elected as follows: President, Prof. C. K. Ingold; Vice-Presidents, Prof. F. G. Donnan, Sir lan Heilbron, Sir Cyril Hinshelwood, Dr. W. H. Mills, Sir Eric Rideal, Sir Robert Robinson, Prof. G. R. Clemo, Prof. R. D. Haworth, Prof. D. H. Hey, Prof. E. L. ...
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    Instruments and Accessories for Use with Radioactive Isotopes (1953)
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    Nature 171 (1953), S. 460-461 
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    Notes: [Auszug] THE second edition has been published of "Instruments and Accessories for Radio-Isotope Applications", a useful brochure for the potential users of radioactive isotopes, edited by Dr. Denis Taylor and A. G. Peacock (pp. 20. London: Scientific Instrument Manufacturers' Research Association, 1952; ...
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    Reduction of Ferric Ion in Aqueous Solution by γ-Radiation (1953)
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    Nature 171 (1953), S. 690-691 
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    Notes: [Auszug] A LTHOUGH the oxidation of dilute aqueous 4~\. solutions of ferrous ion by ionizing radiation is a well-established fact, there is still some doubt concerning the reduction of ferric ion1. We have found that at sufficiently low acidities reduction may be effected2, and that a steady state is set up ...
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    Beta-Spectrum of Radium E (1953)
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    Nature 171 (1953), S. 694-695 
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    Notes: [Auszug] Different ways of eliminating these disturbances have been tried lately; for example, Waltner and Rogers1 observed the beta-tracks in a cloud chamber, Langer and his co-workers2 used a windowless Geiger counter. Nevertheless, the results obtained by different authors showed marked discrepancies in ...
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    An X-Ray Diffraction Study of the Transformation of Retained Austenite by Fracture (1953)
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    Nature 171 (1953), S. 696-697 
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    Notes: [Auszug] That the austenite was introduced during preparation of the microspecimen seemed unlikely owing to precautions taken to avoid overheating in grinding and polishing and from the appearance of the micro-structure. This hypothesis was finally disproved by further X-ray pictures showing the presence of ...
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    Dissociative Chemisorption of Carbon Dioxide on Solid Catalysts (1953)
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    Nature 171 (1953), S. 705-706 
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    Notes: [Auszug] Kwan and Fujita1 have recently investigated the chemisorption of carbon dioxide on reduced nickel at 200 C. with particular reference to its chemisorbed state, using statistical mechanical consideration, and we conclude that it is completely dissociated into three statistically independent atoms. ...
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    Laws of Addition and Substitution in Atomic Reactions of Halogens (1953)
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    Nature 171 (1953), S. 704-705 
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    Notes: [Auszug] Let us, however, consider first the reactions between an organic substance (JRH) and a halogen (X2) in homogeneous gaseous systems or in non-polar solutions. If the reaction proceeds by atoms and free radicals, the following reactions (substitution s, addition a) must be expected: (1) (2a) X+HR ...
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    Reports and other Publications (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 708-708 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (not included in the monthly Books Supplement Great Britain and Ireland Air Ministry: Meteorological Office. Geophysical Memoirs No. 89: Temperature and Humidity Gradients in the First 100 m. over South- East England. By A. C. Best, E. Knighting, R. H. Pedlow and K. Stormonth. (M.O.530d.) Pp. ...
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    URL: http://dx.doi.org/10.1038/171708a0
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    Prevention of Tuberculosis (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 626-627 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING the past quarter of a century, remarkable changes have occurred in the general outlook on nearly every aspect of the tuberculosis problem. Twenty-five years ago views on the pathogenesis of pulmonary tuberculosis were dominated by the theories of European pathologists. Ranke's three stages ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171626b0
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    Presidency of the Royal Aeronautical Society: Sir William Farren, C.B., F.R.S. (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 635-635 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIB WILLIAM FABBEN has been elected president of the Royal Aeronautical Society for the year 1953-54 and will take office at the annual general meeting of the Society to be held on May 7. Sir William was born in Cambridge in 1892 and was educated there at the Perse School and afterwards in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171635b0
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    Royal Geographical Society: Awards (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 635-636 
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Queen has approved the award by the Royal Geographical Society of Royal Medals as follows: Founder's Medal, Mr. P. D. Baird, director of the Montreal office of the Arctic Institute of North America, for explorations in the Canadian Arctic; Patron's Medal, Count Eigil Knuth, leader of the Danish ...
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    Society for the Bibliography of Natural History (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 637-637 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE annual general meeting of the Society for the Bibliography of Natural History was held at the British Museum (Natural History) on March 30. Mr. Walter Necker spoke on "The Unsystematic System-atist, and Other Random Observations on Bibliography in England and America". It was reported that ...
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    URL: http://dx.doi.org/10.1038/171637c0
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