Search Results - (Author, Cooperation:J. Dunlop)

Showing 1 - 20 results of 46, query time: 0.26s Refine Results
  1. 1
    Staff View
    Publication Date:
    2016-02-27
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2011-04-08
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; COS Cells ; Cell Movement/genetics ; Cell Proliferation ; Cercopithecus aethiops ; Cerebral Cortex/cytology/*embryology/physiology ; Gene Knockdown Techniques ; Glycogen Synthase Kinase 3/metabolism ; HEK293 Cells ; Humans ; Mice ; Microtubule-Associated Proteins/genetics/metabolism ; *Nerve Tissue Proteins/genetics/metabolism ; Neurons/*cytology/metabolism/*physiology ; PC12 Cells ; Phosphorylation ; Protein Binding ; Rats ; Signal Transduction ; Stem Cells/*cytology ; Wnt Proteins/metabolism ; beta Catenin/metabolism
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2018-02-02
    Publisher:
    BMJ Publishing
    Electronic ISSN:
    2044-6055
    Topics:
    Medicine
    Keywords:
    Public health, Open access, Patient-centred medicine
    Published by:
    http://group.bmj.com/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Kollmannsberger, P., Bidan, C. M., Dunlop, J. W. C., Fratzl, P., Vogel, V.
    American Association for the Advancement of Science (AAAS)
    Published 2018
    Staff View
    Publication Date:
    2018-01-18
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Electronic ISSN:
    2375-2548
    Topics:
    Natural Sciences in General
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Zhao, Z. G. ; Collocott, S. J. ; Dunlop, J. B. ; de Boer, F. R. ; Sun, X. K. ; Chuang, Y. C.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The magnetic properties of YCo4B-based compounds have been investigated. The Curie temperature TC of YCo4B does not change upon substitution of 20% of the Y ions by Nd or 20% of the B ions by C. TC increases significantly upon substitution of Fe for Co. The Co moment in YCo4B0.8C0.2 is nearly equal to that in YCo4B.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.353521

    Articles: DFG German National Licenses
  6. 6
    Cadogan, J. M. ; Li, Hong-Shuo ; Margarian, A. ; Dunlop, J. B. ; Ryan, D. H. ; Collocott, S. J. ; Davis, R. L.

    [S.l.] : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    New rare-earth (R), iron-rich ternary intermetallic compounds of the form R3(Fe,M)29 with the monoclinic Nd3(Fe,Ti)29 structure (space group P21/c, #14, Z=2) have recently been shown to form with R=Ce, Nd, Pr, Sm, and Gd, and M=Ti, V, Cr, and Mn. This novel structure is derived from the alternate stacking of Th2Zn17 and ThMn12-type segments and contains two R sites and fifteen Fe(M) sites. Reported Curie temperatures of the 3:29 compounds range from 296 K (R=Ce, M=Cr) to 524 K (R=Sm, M=V). The 3:29 compounds all show improved magnetic properties after interstitial modification with H or N; in particular, room-temperature coercivity has been reported in Sm3(Fe,Ti)29N5, making this compound a candidate for possible permanent-magnet applications. In this article we will review the work carried out to date on the 3:29 compounds.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.358333

    Articles: DFG German National Licenses
  7. 7
    Ryan, D. H. ; Cadogan, J. M. ; Margarian, A. ; Dunlop, J. B.

    [S.l.] : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The effects of light atom intercalation on the magnetic properties of the monoclinic compound Nd3(Fe,Ti)29 have been studied by Mössbauer spectroscopy and thermogravimetric analysis. Maximum contents of 4 nitrogen atoms and 6 hydrogen atoms per formula unit have been achieved, consistent with structural calculations. The associated lattice expansion ranges from 2% in the hydride to 6.5% in the nitride. Attempts to introduce carbon were unsuccessful as the material decomposed rapidly during the reaction. Both hydrogen and nitrogen additions lead to substantial increases in the magnetic ordering temperature, but only the nitrogen leads to an increase in the iron moment.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.358336

    Articles: DFG German National Licenses
  8. 8
    Margarian, A. ; Dunlop, J. B. ; Day, R. K. ; Kalceff, W.

    [S.l.] : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    High-temperature phase relations in the Fe-rich corner of the Nd-Fe-Ti ternary alloy system have been investigated and an equilibrium phase diagram has been constructed at 1100 °C. Arc-melted and annealed alloys of systematically varying compositions were characterized utilizing scanning electron microscopy, an energy dispersive x-ray microanalysis system (EDS), x-ray diffraction, and optical metallography. Three major phases have been identified, the well known Nd(Fe,Ti)12 "1:12'' (ThMn12-type structure) and Nd2(Fe,Ti)17 "2:17'' (Th2Zn17-type structure) compounds, and a phase with approximate composition Nd2(Fe,Ti)19 "2:19.'' The crystal structure of the latter phase has very recently been solved, and the "ideal'' composition shown to be Nd3(Fe,Ti)29 "3:29.'' Quantitative EDS data has been used to identify the compositional limits for the three major phases. Annealing the "1:12'' and "3:29'' ternary phases at 900 °C results in a slow decomposition into Nd2(Fe,Ti)17, Fe2Ti, and α-Fe(Ti).
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.358338

    Articles: DFG German National Licenses
  9. 9
    Dou, S. X. ; Bourdillon, A. J. ; Sorrell, C. C. ; Ringer, S. P. ; Easterling, K. E. ; Savvides, N. ; Dunlop, J. B. ; Roberts, R. B.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1987
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The onset of superconductivity at 140 K has been observed in the high Tc Y-Ba-Cu-O system in samples consisting of 90% by volume of a single-phase oxide of average cation ratio Y:Ba:Cu(approximately-equal-to)1:2:3. A sharp superconducting transition in the resistivity has been measured, where Tc0=140 K, Tc=93.2 K, ΔTc=0.5 K, and "zero resistance'' was observed at 92.0 K. Transmission electron microscopy and energy dispersive spectroscopy measurements revealed that the superconducting phase consisted of a large number of microcrystallites of (approximately-equal-to)0.5 μm size and that these contained a very high defect microtwinned/faulted structure.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.98390

    Articles: DFG German National Licenses
  10. 10
    Price, D. C. ; Day, R. K. ; Dunlop, J. B.

    [S.l.] : American Institute of Physics (AIP)
    Published 1986
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    57Fe Mössbauer spectra of Tm2Fe14B, measured above and below the spin reorientation temperature (∼310 K), have been analyzed and are entirely consistent with a rotation of the magnetization from the basal plane to the c axis as the temperature is increased.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.336785

    Articles: DFG German National Licenses
  11. 11
    Suzuki, K. ; Cadogan, J. M. ; Dunlop, J. B. ; Sahajwalla, V.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The nanostructural formation kinetics in a soft magnetic Fe80Nb6B14 alloy have been investigated by means of differential scanning calorimetry, thermogravimetric analysis and transmission electron microscopy. Unlike nanocrystalline Fe–Zr–B soft magnetic alloys, where the nanocrystallite formation is governed mostly by a nucleation and growth mechanism, the nanostructural formation mechanism in the Fe–Nb–B alloy shows a change in the fraction transformed range 0.1–0.2. The first- and second-stage nanostructural formation processes have been described by the nucleation and growth and grain-growth models, respectively. This two-stage nature in the nanostructural formation kinetics can be attributed to a high population density of the primary bcc nuclei. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.115536

    Articles: DFG German National Licenses
  12. 12
    Goldberg, D. ; McIntyre, P.G. ; Smith, R. ; Appleyard, K. ; Dunlop, J. ; Taylor, A. ; Hutchinson, S.

    Oxford, UK : Blackwell Science Ltd
    Published 2001
    Staff View
    ISSN:
    1471-0528
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Objective To determine the prevalence of the hepatitis C virus among pregnant women, to gauge the non-injecting, particularly sexual, risk of them being hepatitis C virus infected and to assess the potential impact of selective antenatal screening.Population Antenatal clinic attenders and women undergoing termination of pregnancy in 1997.Setting Ninewells Hospital, Dundee.Design Unlinked anonymous hepatitis C virus antibody testing of residual sera from specimens sent to the virus laboratory for routine serological testing. The results were linked to non-identifying risk information.Results Overall anti-hepatitis C virus prevalence was 0.6% (23/3548). Prevalences among injecting drug users, non-injectors who had a sexual partner who injected, and those with neither risk respectively were 41% (7/17), 15% (5/33) and 0.3% (11/3498). Relative risks for being an injector and a sexual partner of an injector respectively were 131 (95% CI 58-297) and 48 (95% CI 5-32). It is estimated that one of the 18 antenatal clinic attenders gave birth to an infected child.Conclusion Findings suggest that non-injecting partners of injectors may be at considerable risk of acquiring hepatitis C virus sexually. Efforts to promote the use of condoms among injectors and their sexual partners should be increased. Selective anti-hepatitis C virus screening of women who reported high risk behaviour would have failed to detect half the cases. Research to gauge the views of women of childbearing age on anti-hepatitis C virus testing is required.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1471-0528.2001.00089.x

    Articles: DFG German National Licenses
  13. 13
    Cadogan, J. M. ; Li, Hong-Shuo ; Davis, R. L. ; Margarian, A. ; Collocott, S. J. ; Dunlop, J. B. ; Gwan, P. B.

    [S.l.] : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Alloys with the composition Nd2(Fe,Ti)19 can exist in two crystal structures depending on the preparation technique. Melt-spun material has a hexagonal TbCu7-type structure (a=4.902 A(ring), c=4.248 A(ring)) for a range of quenching speeds. Alloys prepared by arc melting, annealing at 1373 K and then water quenching have a complex monoclinic structure derived from a TbCu7 superlattice (a=10.644 A(ring), b=8.585 A(ring), c=9.755 A(ring), β=96.92°) and related to those of other intermetallics such as tetragonal Nd(Fe,Ti)12 and rhombohedral Nd2Fe17. Magnetic ordering temperatures for annealed (monoclinic) and melt-spun (hexagonal) Nd2(Fe,Ti)19 are 411 and 454 K, respectively. 57Fe Mössbauer spectroscopy at 295 K demonstrates that the local environments of the Fe atoms in the two structural modifications of Nd2(Fe,Ti)19 are similar. The average 57Fe magnetic hyperfine fields at 295 K for the monoclinic and hexagonal Nd2(Fe,Ti)19 are 20.8 and 22.3 T, corresponding to average Fe magnetic moments of 1.33 and 1.43μB, respectively.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.356696

    Articles: DFG German National Licenses
  14. 14
    BUICK, ROGER ; DUNLOP, J. S. R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1990
    Staff View
    ISSN:
    1365-3091
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Geosciences
    Notes:
    Chemical sediments are common and diverse in the c. 3500 Myr old North Pole chert-barite unit in the Warrawoona Group, Western Australia. Although almost all original minerals were replaced during hydrothermal alteration, metamorphism and deformation, pseudomorphic relics of sedimentary and diagenetic textures and structures show that at least six lithofacies were partly or wholly chemical in origin. These contained five main chemical sedimentary components: primary carbonate mud, diagenetic carbonate crystals, primary sulphate crystals, diagenetic sulphate crystals and diagenetic sulphate nodules. All show a wide range of characteristics consistent only with a marine evaporative origin. Diagenetic carbonate and sulphate crystals, once ferroan dolomite and gypsum, were precipitated within volcanogenic lutites high on littoral mudflats. The other evaporative phases were apparently deposited behind a barrier bar composed of stranded pumice rafts. Primary sulphate crystals, once gypsum and now barite, were precipitated in semi-permanent pools immediately behind the bar. Primary carbonate mud, originally calcitic or aragonitic but now silicified, was deposited in nearby channels and on surrounding mudflats. Within these sediments, diagenetic carbonate crystals (formerly ferroan dolomite) and diagenetic sulphate nodules and crystals (once gypsum) grew during later desiccation. The existence of these evaporites, and more like them in the sediments of other Early Archaean cratons, suggests that shallow marine and terrestrial conditions prevailed over a small but significant portion of the early Earth, contrary to some models of global tectonic evolution. Their overall similarity with more recent evaporitic deposits indicates that there was greater conformity between conditions in modern and primeval sea-shore environments than might be expected, given the great age difference. The attitude implicit in many accounts of Earth's early history, that evaporites were either not deposited or not preserved in Archaean sediments, thus seems to be incorrect.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1365-3091.1990.tb00958.x

    Articles: DFG German National Licenses
  15. 15
    DUNLOP, J. S. R. ; MILNE, V. A. ; GROVES, D. I. ; MUIR, M. D.

    [s.l.] : Nature Publishing Group
    Published 1978
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The North Pole barite deposits (11928' E: 2107' S) are contained within the lower units of the Warrawoona Group of the Archaean Pilbara Block of Western Australia1. The deposits occur 160 km SSE of Port Hedland, and 40 km W of Marble Bar. A concordant, bedded chert-barite unit is underlain by ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/274676a0

    Articles: DFG German National Licenses
  16. 16
    LAMBERT, I. B. ; DONNELLY, T. H. ; DUNLOP, J. S. R. ; GROVES, D. I.

    [s.l.] : Nature Publishing Group
    Published 1978
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The North Pole deposits8'9 (2107' S, 11928' E) lie within a 30-m thick fossiliferous10 sequence consisting of laminated chert, silicified arenite and conglomerate, between slightly metamorphosed mafic and ultramafic volcanics of the War-rawoona Group11. Stratigraphie correlations suggest the North ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/276808a0

    Articles: DFG German National Licenses
  17. 17
    DUNLOP, J. I. ; NICHOLLS, C. H.

    [s.l.] : Nature Publishing Group
    Published 1965
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Several amino-acids and the proteins gelatin, insulin, casein, silk fibroin, egg albumin and unpigmented keratin were evacuated and sealed in quartz sample tubes. The samples were then irradiated by narrow wave-length bands of monochromated ultra-violet radiation in the spectral range 250-600 ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/2051310a0

    Articles: DFG German National Licenses
  18. 18
    Kelsell, D. P. ; Dunlop, J. ; Stevens, H. P. ; Lench, N. J. ; Liang, J. N. ; Parry, G. ; Mueller, R. F. ; Leigh, I. M.

    [s.l.] : Macmillan Magazines Ltd
    Published 1997
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Initially we studied a caucasian pedigree in which both autosomal dominant palmoplantar keratoderma (PPK, in which there is abnormal callusing of palms and soles) and congenital sensorineuronal ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/387080a0

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The most massive galaxies in the present-day Universe are found to lie in the centres of rich clusters. They have old, coeval stellar populations suggesting that the bulk of their stars must have formed at early epochs in spectacular starbursts, which should be luminous phenomena when observed ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/nature01976

    Articles: DFG German National Licenses
  20. 20
    Harker, F.R. ; Dunlop, J.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0925-5214
    Keywords:
    Apoplast ; Mealiness ; Resistance ; Stonefruit
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0925-5214(94)90014-0

    Articles: DFG German National Licenses