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  • Nature Publishing Group  (27)
  • Blackwell Publishing Ltd  (25)
  • American Geophysical Union (AGU)
  • American Physical Society (APS)
  • 1975-1979  (52)
  • 1979  (27)
  • 1976  (25)
  • 1
    Electronic Resource
    Electronic Resource
    Chemical Control of the Virus-vector Nematode Longidorus elongatus and of Pratylenchus creimtus in Raspberry Plantations (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 25 (1976), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Either of two fumigant nematicides, dazomet or dichloropropane-dichloropropene, applied prior to planting at 336 kg a.i./ha, gave good control of Longidorus elongatus (de Man) Thorne & Swanger and transmission of raspberry ring spot virus in a raspberry plantation. Either of two oxime-carbamate nematicides, aldicarb or oxamyl, at 7.84 kg a.i./ha gave only moderate control of nematode numbers and only limited control of virus transmission.Quintozene (89.6 kg a.i./ha) decreased L. elongatus numbers slowly and controlled virus transmission in the field. Pratylenchus crenatus Loof numbers were controlled only by dazomet, dichloropropane-dichloropropene or aldicarb.In a supplementary field experiment the acquisition and transmission of tomato black ring virus by L. elongatus in strawberries was inhibited by oxamyl for less than 19 wk. Little difference in the duration of the inhibitory effect was found between the three rates of oxamyl tested (5.56, 11.2 and 22.4 kg a.i./ha).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1976.tb01909.x
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  • 2
    Electronic Resource
    Electronic Resource
    Development of relief on a Middle Jurassic cemented sea floor: origin of submarine pseudo-anticlines in the Bathonian of Normandy (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 26 (1979), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: On the foreshore east of Luc-sur-Mer, Normandy, an Upper Bathonian hard-ground which caps a sponge biostrome has been thrown into a series of troughs and ridges, the latter sometimes with very steep flanks. Faunal orientation and encrustation of extensive undercuts demonstrate that these structures are of a syn-sedimentary origin. They are interpreted as submarine pseudo-anticlines which have a composite origin. The following three factors are thought to have contributed to their formation: (a) a primary morphological differentiation of the underlying biostrome; (b) sediment expansion caused by force of crystallization during hardground formation; and (c) differential compaction, being greater where the hardground overlies mainly inter-reef mud as compared with the rigid sponge framework. The main episode of this compaction occurred at an early stage in the life of the hardground. Subsequent erosion, colonization by encrusters and borers, and burial beneath a fossiliferous clay were the final stages in the history of these pseudo-anticlines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1979.tb00919.x
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  • 3
    Electronic Resource
    Electronic Resource
    MINIMUM ENTROPY DECONVOLUTION WITH AN EXPONENTIAL TRANSFORMATION (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 27 (1979), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: The Minimum Entropy Deconvolution (MED) technique of Wiggins (1977) represents a breakthrough in deconvolution and will undoubtedly find wide application in many fields. MED does not require any phase assumptions about the disturbing function and seeks a deconvolved output which consists of the smallest number of large spikes consistent with the input data.The efficiency of MED is much improved when an exponential transformation is incorporated into the algorithm. This is particularly true when the input traces contain additive noise. In this case the noise suppression characteristics of MED are considerably enhanced by the transformation and the identification of smaller spikes is improved. This paper also presents a kurtosis criterion of simplicity rather than the varimax norm introduced by Wiggins. It appears that for a multiple trace input the kurtosis measure leads to improved results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1979.tb00979.x
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  • 4
    Electronic Resource
    Electronic Resource
    Vanadate : a new tool for biologists (1979)
    [s.l.] : Nature Publishing Group
    Nature 281 (1979), S. 337-338 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RESEARCH on the biological actions of vanadate has increased enormously during the past three years. Vanadium compounds can be highly toxic to man and animals and yet removal of the minute quantities normally present in the diet leads to deficiency disorders in experimental animals1. The biological ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/281337a0
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  • 5
    Electronic Resource
    Electronic Resource
    Evidence against a hydrodynamic function for fish schools (1979)
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), S. 418-419 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Weihs considered three types of hydrodynamic advantage which could result in energy savings to fish (Fig. 1) and predicted the p'ositions fish should take up to benefit from them (for details of the models see refs 5 and 6). We attempted to discover how well fish in schools took up these positions, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/279418a0
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  • 6
    Electronic Resource
    Electronic Resource
    Comparison of the predicted model of α -lytic protease with the X-ray structure (1979)
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), S. 165-168 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. l a, A stereo drawing of the a-carbon atom backbone of a -lytic protease, with each a-carbon atom position numbered according to that of chymotrypsinogen A as described in detail in rf. 20. The active site region is located in the central portion of this drawing, where a -carbon atom positions ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/279165a0
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  • 7
    Electronic Resource
    Electronic Resource
    Psychopharmacology handbook (1979)
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 674-675 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WITH these three volumes the Iversen-Snyder Handbook moves from the field of basic neuropharmacology into behavioural pharmacology. A total of 30 chapters contributed by 47 authors encompasses a range of subjects from the analysis of operant schedules (Dews and de Weese) to the localisation of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/277674a0
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  • 8
    Electronic Resource
    Electronic Resource
    Simulated lidar return from a one-dimensional stratospheric aerosol model (1979)
    [s.l.] : Nature Publishing Group
    Nature 278 (1979), S. 149-152 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 a, Scattering ratio (R) as a function of altitude calculated from aerosol model. Dotted lines represent the range of experimental uncertainty (from rf. 11). b, Lidar backscattering ratio obtained 20 September, 1978 with Langley Research Center 48" lidar system. The one-dimensional ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/278149a0
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  • 9
    Electronic Resource
    Electronic Resource
    Strontium marking of hatchery-reared coho salmon (Oncorhynchm kisutch, Walbaum) (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 14 (1979), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In the management of saimonid populations it is often necessary to distinguish hatchery-reared from wild stocks. This study examines the feasability of marking fish tissue by substituting a biologically rare element, strontium, for calcium.Sixteen-month-old hatchery-reared coho salmon (Oncorhynchus kisutch, Walbaum 1792) were fed a diet, to which 10000 ppm stable strontium was added, for 60 days. Prior to their seaward migration in June 1976, the treated coho contained 32 times as much strontium in their vertebrae as did the control coho.Sixty-eight precocious males‘jacks’ returned to the hatchery in the fall of 1976 and 1200 adults in the fall of 1977. Strontium-treated ‘jacks’ contained 1·4 times as much strontium as did control ‘jacks’ however, treated and untreated fish could not be distinguished as adults. The reduction in the strontium concentration of the treated fish could be accounted for by growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1979.tb03518.x
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  • 10
    Electronic Resource
    Electronic Resource
    LITTER SIZES IN INBRED STRAINS OF RATS (RATTUS NORVEGICUS) (1979)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 6 (1979), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The average litter sizes and reproductive performance of twenty-five inbred strains of rats, maintained in a conventional colony in Pittsburgh, and twenty-six inbred strains, maintained in a barrier facility at the National Institutes of Health, were calculated from data collected for periods of 3 and 10 years, respectively. There were considerable variations in both parameters in each of the two colonies studied. In addition, there were quite wide variations in male to female ratios among inbred strains (0.80 to 1.42).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1979.tb00701.x
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