Search Results - (Author, Cooperation:D. R. Jones)

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  1. 1
    S. Nik-Zainal ; H. Davies ; J. Staaf ; M. Ramakrishna ; D. Glodzik ; X. Zou ; I. Martincorena ; L. B. Alexandrov ; S. Martin ; D. C. Wedge ; P. Van Loo ; Y. S. Ju ; M. Smid ; A. B. Brinkman ; S. Morganella ; M. R. Aure ; O. C. Lingjaerde ; A. Langerod ; M. Ringner ; S. M. Ahn ; S. Boyault ; J. E. Brock ; A. Broeks ; A. Butler ; C. Desmedt ; L. Dirix ; S. Dronov ; A. Fatima ; J. A. Foekens ; M. Gerstung ; G. K. Hooijer ; S. J. Jang ; D. R. Jones ; H. Y. Kim ; T. A. King ; S. Krishnamurthy ; H. J. Lee ; J. Y. Lee ; Y. Li ; S. McLaren ; A. Menzies ; V. Mustonen ; S. O'Meara ; I. Pauporte ; X. Pivot ; C. A. Purdie ; K. Raine ; K. Ramakrishnan ; F. G. Rodriguez-Gonzalez ; G. Romieu ; A. M. Sieuwerts ; P. T. Simpson ; R. Shepherd ; L. Stebbings ; O. A. Stefansson ; J. Teague ; S. Tommasi ; I. Treilleux ; G. G. Van den Eynden ; P. Vermeulen ; A. Vincent-Salomon ; L. Yates ; C. Caldas ; L. V. Veer ; A. Tutt ; S. Knappskog ; B. K. Tan ; J. Jonkers ; A. Borg ; N. T. Ueno ; C. Sotiriou ; A. Viari ; P. A. Futreal ; P. J. Campbell ; P. N. Span ; S. Van Laere ; S. R. Lakhani ; J. E. Eyfjord ; A. M. Thompson ; E. Birney ; H. G. Stunnenberg ; M. J. van de Vijver ; J. W. Martens ; A. L. Borresen-Dale ; A. L. Richardson ; G. Kong ; G. Thomas ; M. R. Stratton
    Nature Publishing Group (NPG)
    Published 2016
    Staff View
    Publication Date:
    2016-05-03
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    JONES, D. R. ; DAVIES, ALISON

    Oxford, UK : Blackwell Publishing Ltd
    Published 1988
    Staff View
    ISSN:
    1365-2494
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Two experiments investigating the effects of simulated continuous defoliation on white clover development and senescence are described. Stolons growing in boxes in a glasshouse were defoliated repeatedly by hand to simulate different intensities of continuous grazing by sheep. The experiments continued in both instances until eleven leaves had been produced on stolons in the most favourable treatment.It was found that leaf dry matter production was reduced in proportion to the leaf complement of the stolon. Reduction of the leaf complement from two leaves to one leaf led to a reduction in subsidiary branch production of about 25% and an increase in percentage dead stolon from 33 to 44%, If no fully expanded leaves were retained branch production fell to 40% or less of that observed when two leaves were retained.Stolons growing in swards continuously grazed by sheep usually have a green leaf complement varying between zero and two leaves per growing point. The consequences of maintaining different leaf complements in this range are discussed in the light of the current experiments.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Niarchos, D. G. ; Dunlap, B. D. ; Hadjipanayis, G. C. ; Jones, D. R.

    [S.l.] : American Institute of Physics (AIP)
    Published 1985
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Rapidly quenched rare-earth (R)-iron boron alloys show large magnetic hysteresis when annealed around 700 °C. The hard magnetic properties of these alloys have been attributed to the presence of an anisotropic tetragonal phase with composition R2Fe14B. However, it is not yet clear when this phase is formed and how it affects the hard magnetic properties. Thermal analysis data, show a crystallization temperature around 400 °C which is much lower than the annealing temperature for the optimum properties. X-ray diffraction data do not show any significant changes after crystallization. In the present study we have used the Mössbauer effect to probe the products of crystallization and their changes during further annealing. Analysis of the 57Fe Mössbauer data has been performed considering a distribution of hyperfine magnetic fields. It is found that the average field changes from 250 kG for the amorphous alloy to 285 kG for the alloy annealed at 450 °C to 240 kG for the alloy annealed at 700 °C. The distribution is narrowed on increasing the annealing temperature and the Mössbauer spectra are indicative of phase segregation.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Humphreys-Jones, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1977
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Humphreys-Jones, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1977
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
    Humphreys-Jones, D. R. ; Gibbons, Linda M.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1971
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    JONES, D. R. ; INGRAM, D. S. ; DIXON, G. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1982
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    A technique for inoculation of Brassica seedlings with single resting spores of Plasmodiophora brassicae is described. Three isolates derived from single spores were produced from one population of P. brassicae. They gave different reactions with the European Clubroot Differential (ECD) series, and two gave different reactions from those of the spore suspensions from which they were derived. When two isolates were mixed together, spores of one isolate restricted infection by spores of the other isolate.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    HUMPHREYS-JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1982
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Humphreys-jones, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1980
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Jones, D. R. Hhumphreys

    Oxford, UK : Blackwell Publishing Ltd
    Published 1980
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Humphreys-Jones, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1980
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1994
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Following the discovery of resistance to benzimidazole fungicides in the cereal eyespot pathogen Pseudocercosporella herpotrichoides in the UK in 1981, and an initial in vitro screen to select the fungicides with greatest activity against the pathogen, 40 field experiments were carried out between 1983 and 1986 to evaluate alternative fungicides for control of eyespot. At the majority of experimental sites, benomyl-resistant strains of the pathogen were present, and carbendazim did not control eyespot. Prochloraz was the most effective fungicide, reducing the eyespot index by 30–60%. There was no extra benefit from adding carbendazim to prochloraz. Flusilazole was almost as effective as prochloraz, but other fungicides had little or no effect. At sites with a high incidence of eyespot, prochloraz, with or without the addition of carbendazim, generally gave the largest yield increase. The mean yield increases each year were in the range 0·36–0·85 t/ha, and the greatest yield increase at any site was 2·27 t/ha. Most other fungicides increased yield, but carbendazim did not from 1984 to 1986. There were also yield increases at many sites with a low incidence of eyespot. Yield increases were associated with increases in thousand-grain weight at the majority of sites, but in only a few instances were there associated increases in specific weight. Prochloraz application at GS30-31 was cost effective at 71% of sites. At most sites, in regression of yield on eyespot, eyespot accounted for less than 25% of the variance in yield. The mean relationship between severe eyespot lesions and yield loss was such that each 1% increase in the percentage of tillers affected by severe eyespot was associated with a yield loss of 0·21 %. There was a significant positive correlation between eyespot at GS75 and GS30-31, and between yield increase from prochloraz treatment (at GS30-31) and eyespot at GS75, but not between yield increase and eyespot at GS30-31. The ADAS threshold for fungicide application of 20% tillers affected at GS30-31 was a reliable indicator of the cost-effectiveness of treatment at 60% of sites.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    HUMPHREYS-JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1969
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Humphreys-Jones, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1977
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    HUMPHREYS-JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1981
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    JONES, D. R. ; SLADE, M. D. ; BIRKS, KATHRYN A.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1989
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Isolates of Pyrenophora graminea resistant to organomercury were obtained from barley crops in England and Scotland in 1984–6. Resistant isolates were approximately 100 times less sensitive in vitro than sensitive isolates to phenyl mercuric acetate (PMA), but the difference was only four times for methoxyethyl mercuric acetate (MEMA). In small-plot field trials, seed treatment with either PMA or MEMA gave good control of leaf stripe disease caused by organomercury-sensitive strains of P. graminea but neither compound gave commercially acceptable control of resistant strains. Fungicides with different modes of action (triadimenol + fuberidazole, flutriafol + ethirimol + thiabendazole, carboxin-+- thiabendazole + imazalil, and guazatine + imazalil) were effective against organomercury-sensitive and organomercury-resistant strains. The few cases of resistance found do not justify a change from the use of organomercury as the standard seed treatment for barley.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  17. 17
    RAMSEY, M. D. ; JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1988
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Symptoms of a downy mildew disease were recognized on maize growing in the Atherton Tableland and Lakeland Downs areas of Far North Queensland in 1985. Quarantine measures were invoked to prevent the spread of this potentially serious disease to other parts of Australia.The pathogen was identified as Peronosclerospora maydis in 1986 following examination of conidiophores with conidia and host range studies. An alternative host was strongly suspected and a survey near fields where the disease had been prevalent led to the identification of P. maydis on Sorghum plumosum, a grass indigenous to northern Australia. All downy mildew outbreaks on maize and sweetcorn in northern Australia since 1970 have been in areas where S. plumosum occurs. It seems likely that P. maydis has been present in Australia for many years.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  18. 18
    JONES, D. R. ; INGRAM, D. S. ; DIXON, G. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1982
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Factors affecting the use of the European Clubroot Differential (ECD) series for determining the differential pathogenicity of Plasmodiophora brassicae were studied. Replicate tests made with one collection of P. brassicae did not give consistent results. Collections were shown to be heterogeneous for differential pathogenicity. Selection of components of a collection occurred during passage through a range of differential host cultivars. ECD host 06 was shown not to be uniform. There was a linear relationship between the logarithm of spore concentration in the inoculum used in tests and the incidence of disease, and some ECD hosts required a higher concentration of spores than others to give the same incidence of disease. The implications of these findings for the future use of the ECD series are discussed.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  19. 19
    HUMPHREYS-JONES, D. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1982
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  20. 20
    HUMPHREYS-JONES, D. R. ; FLETT, S. F.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1976
    Staff View
    ISSN:
    1365-3059
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses