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  • Blackwell Publishing Ltd  (25)
  • American Physical Society (APS)
  • American Geophysical Union (AGU)
  • 1975-1979  (25)
  • 1979  (14)
  • 1976  (11)
  • 1
    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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  • 2
    Electronic Resource
    Electronic Resource
    A STATISTISTICAL ANALYSIS OF HUMAN LYMPHOCYTE TRANSFORMATION DATA (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 lymphocytes from 107 maternal-foetal pairs were examined for their in vitro responsiveness, as determined by the incorporation of tritiated thymidine following stimulation with phytohaemagglutinin (PHA), candida, varicella, mumps, streptokinase-streptodornase (SKSD) and tetanus toxiod. The data were collected and analysed in two sequential groups (forty-seven and sixty) in order to determine whether the results were reproducible. The variable chosen for analysis was the difference (d) between the square roots of the isotope incorporation in the stimulated and control cultures because it gave the most symmetrical distribution of the data. The experimental error in the determination of maternal lymphocyte stimulation was 1.4-8.6% and of the and of the foetal lymphocytes, 1.0-16.6% depending upon the antigen or mitogen and its concentration. The data in the two sets of patients were statistically the same in forty-eight of the fifty-six analyses (fourteen antigen or mitogen concentrations in autologous and AB plasma for maternal and foetal lymphocytes). The statistical limits of the distribution of responses for stimulation or suppression were set by an analysis of variance taking two standard deviations from the mean as the limits. When these limits were translated into stimulation indices, they varied for each antigen or mitogen and for different concentrations of the same antigen. Thus, a detailed statistical analysis of a large volume of lymphocyte transformation data indicates that the technique is reproducible and offers a reliable method for determining when significant differences from control values are present.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1979.tb00344.x
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  • 3
    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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  • 4
    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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  • 5
    Electronic Resource
    Electronic Resource
    CONSUMERS' RESPONSES TO FOOD PRODUCTS WITH INCREASED LEVELS OF POLYUNSATURATED FATTY ACIDS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Pigs were reared on different diets, leading to different percentages of PUFA'S (up to 40%) in their fat. Pork products, mostly cold, were evaluated by a consumer panel for overall preferences, and on various characteristics such as color, etc. Panel members evaluated also the acceptability of the products. Results show that the modified pork products do reasonably well, compared with standard products. The biggest exception is liver sausage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb06467.x
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  • 6
    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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  • 7
    Electronic Resource
    Electronic Resource
    RELATIONSHIP BETWEEN THE RESPONSIVENESS OF MATERNAL AND FOETAL LYMPHOCYTES TO PHYTOHAEMAGGLUTININ AND TO MICROBIAL ANTIGENS (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 response of 105 maternal-foetal lymphocyte pairs to specific and non-specific stimulation were evaluated using a newly defined method of analysis. There were no significant differences in the responses of maternal or foetal lymphocytes to phytohaemogglutinin (PHA) or the various antigens as a function of concentration over the ranges tested. The maternal lymphocytes were stimulated by all of the antigens and responded to PHA three-five times more strongly than to the antigens. The foetal lymphocytes were stimulated by PHA and tetanus toxoid only and were suppressed by streptokinase-streptodornase (SKSD). They responded to stimulation by antigens at a lower level than did the maternal lymphocytes, but they responded at a much higher level to PHA. Unstimulated cultures of foetal lymphocytes incorporated more isotope than did those of maternal lymphocytes in both autologous and AB plasma.The data were cross-classified to determine whether the responses of the foetal lymphocytes varied concordantly with the responses of the maternal lymphocytes in both autologous and AB plasma by the Chi-square test for independence and by rank correlation analysis. There was no significant correlaiton in either plasma to stimulation with the antigens. Thus, the presence of antigen reactive lymphocytes in the circulation of the mother does not mean that the foetus is sensitized to that antigen.Comparison of the lymphocyte responses in autologous plasma with those in AB plasma provided evidence for the presence of circulating immunoregulatory substances. Autologous maternal plasma suppressed the lymphocyte responses to high concentrations of candida and SKSD and stimulated the response to mumps, varicella and tetanus toxoid. Autologous fetal plasma suppressed the lymphocyte responses to candida, varicell and SKSD and stimulated the response to PHA. The responsiveness of maternal lymphocytes to PHA was less in foetal plasma than in autologous maternal or AB plasma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1979.tb00345.x
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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    IMMUNE RESPONSES TO SOME PROTEINS AND SYNTHETIC POLYPEPTIDES IN INBRED STRAINS OF RATS (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 antibody responses to DNP-bovine gamma globulin, bovine gamma globulin, human serum albumin, ovalbumin, pepsin and five synthetic polypeptides were examined in strains of inbred rats representative of eight common major histocompatibility complex (RT1) haplotypes. With each antigen the antibody response varied considerably among strains, and the data provide many potential strain and antigen combinations with which to study the genetic control of the immune response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1979.tb00690.x
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  • 10
    Electronic Resource
    Electronic Resource
    The Critical Oxygen Pressures for Respiration in Intact Plants (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 37 (1976), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Two methods for determining critical respiratory oxygen pressure in whole plants are described.By a polarographic method involving the use of cylindrical platinum electrodes the following critical oxygen pressures for root respiration were found: Rice (cv. Norin 36). 0.024 atm: Rice (cv. Norm 37). 0.026 atm: Eriophorum angustifolium. 0.02 atm. These values contrast markedly with those obtained in vitro, and support earlier criticisms of in vitro measurements: they call into question the use of such data in the modelling of root aeration. When the results were assessed by an electrical analogue system, it was concluded that the respiratory activity in the intact root does not follow the normally accepted hyperbolic relationship with oxygen partial pressure. The experimental data were simulated most closely by assuming the critical oxygen pressure to be a function of respiratory responses in the low porosity (high diffusional impedance) tissues of the root meristem and stele, and respiratory activity in the moderately porous root cortex to be unaffected at values greater than 0.001 atm.A critical oxygen pressure of 0.025–0.04 atm for E. angustifolium was found from analyses of the gas phase oxygen in the leaves of whole plants after submergence in the dark. It was concluded that the higher value found by this method was most likely a function of respiratory responses in root tissue remote from the leaf and should not be regarded as the critical oxygen pressure for leaf respiration. The form of the oxygen concentration vs. time plot again suggested a very much lower critical oxygen pressure for certain of the plant tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1976.tb03958.x
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