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  • 1995-1999  (29)
  • 1930-1934
  • 1995  (29)
  • 1
    Electronic Resource
    Electronic Resource
    Catecholamine release and interrenal response of brown trout, Salmo trutta, exposed to aluminium in acidic water (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 46 (1995), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Cannulated brown trout, Salmo trutta, were exposed for 36 h to synthetic water with a low calcium content of pH 5 and similar synthetic water dosed with aluminium to raise the filterable A1 from 5 to 290 μg 1−1 over the 36-h period. There were no significant disturbances of plasma concentrations of glucose, cortisol or catecholamine (adrenaline and noradrenaline) in fish held in water of pH 5. The addition of aluminium to this acidic synthetic water resulted in a generalized endocrine stress response with a four-fold increase in plasma glucose concentration after 18 h and a significant increase in plasma cortisol concentration from 24 h onwards when filterable A1 exceeded 200 μg 1−1. Plasma catecholamine concentration indicated an adrenergic stress response in aluminium-exposed brown trout. A transient doubling in noradrenaline after 6 h in A1 was followed by a larger increase in both plasma adrenaline and noradrenaline concentrations in fish surviving the 36-h exposure to A1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1995.tb05993.x
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental examination of Eulerian frequency spectra in zero-mean-shear turbulence (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 7 (1995), S. 1168-1170 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Eulerian frequency spectra were measured in zero-mean-shear (oscillating-grid induced) turbulent flows and were compared with the spectral form proposed by Tennekes [J. Fluid Mech. 67, 561 (1975)]. A satisfactory agreement between the theoretical prediction and experimental results were obtained in a limited frequency range. The empirical constants pertinent to the spectral law, obtained experimentally, were in good agreement with the numerical simulation results. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.868560
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  • 3
    Electronic Resource
    Electronic Resource
    The Sweetpotato or Silverleaf Whiteflies: Biotypes of Bemisia tabaci or a Species Complex? (1995)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Entomology 40 (1995), S. 511-534 
    Details
    ISSN: 0066-4170
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.en.40.010195.002455
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  • 4
    Electronic Resource
    Electronic Resource
    Recombination and selection in populations of plant pathogens (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 44 (1995), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A theoretical model has been used to study the dynamics of the frequencies of the following: a virulence gene which is selected by part of the host plant population; an unnecessary virulence gene, which is not required for infection of the host; and the gametic disequilibrium between the two genes. If the two genes are not initially in gametic equilibrium, the frequency of the unnecessary virulence may be altered greatly by hitch-hiking selection, because of the increased frequency of the selected virulence. The hitchhiking effect is strongest if reproduction is entirely asexual, but can still be significant if the frequency of recombination is less than the fraction of the host population which consists of selectively resistant plants. The frequency of recombination may be reduced if reproduction is partly clonal, rather than fully sexual, or if the two genes are linked. Selection against unnecessary virulence may give rise to complex dynamics of both virulence alleles; in particular, the frequency of an unnecessary virulence can rise substantially, by hitch-hiking selection, even if there is some sex or recombination. The direction in which the unnecessary virulence's frequency changes depends on the sign of the gametic disequilibrium between it and the selected gene, and on the existence of selection against unnecessary virulence. If there is no such selection, the long-term dynamics of genotype frequencies in a largely asexual pathogen population may be unpredictable. Consequently, disease control strategies based on planned replacements of one resistance gene by another are unlikely to be effective.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1995.tb02779.x
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  • 5
    Electronic Resource
    Electronic Resource
    The effects on Arbutus unedo L. of long-term exposure to elevated CO2 (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Global change biology 1 (1995), S. 0 
    Details
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Arbutus unedo is a sclerophyllous evergreen, characteristic of Mediterranean coastal scrub vegetation. In Italy, trees of A. unedo have been found close to natural CO2 vents where the mean atmospheric carbon dioxide concentration is about 2200 μmol mol−1. Comparisons were made between trees growing in elevated and ambient CO2 concentrations to test for evidence of adaptation to long-term exposure to elevated CO2. Leaves formed at elevated CO2 have a lower stomatal density and stomatal index and higher specific leaf area than those formed at ambient CO2, but there was no change in carbon to nitrogen ratios of the leaf tissue. Stomatal conductance was lower at elevated CO2 during rapid growth in the spring. In mid-summer, under drought stress, stomatal closure of all leaves occurred and in the autumn, when stress was relieved, the conductance of leaves at both elevated and ambient CO2 increased. In the spring, the stomatal conductance of the new flush of leaves at ambient CO2 was higher than the leaves at elevated CO2, increasing instantaneous water use efficiency at elevated CO2. Chlorophyll fluorescence measurements suggested that elevated CO2 provided some protection against photoinhibition in mid-summer. Analysis of A/Ci curves showed that there was no evidence of either upward or downward regulation of photosynthesis at elevated CO2. It is therefore anticipated that A. unedo will have higher growth rates as the ambient CO2 concentrations increase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2486.1995.tb00028.x
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  • 6
    Electronic Resource
    Electronic Resource
    Genetics of avirulences in Erysiphe graminis f.sp. hordei (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 44 (1995), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The genetics of avirulences towards barley mildew resistances were analysed in crosses of the Ervsiphe graminis f.sp. hordei isolate DH14 with CC107 and with CC138. Nine avirulences, Avra9, Avra10, Avra11, Avra12, AvrAb, AvrCP, Avrh, Avrk and AvrLa, segregated as single genes in one or other cross. However. F1 segregation data were consistent with avirulence matching the Mla7 resistance gene being controlled by two genes, designated Avra71 and Avra72. Infection types of avirulent isolates differed on varieties in which Mla7 had been derived from each of the four known sources of that resistance. Linkage was detected between Avra71 and Avrh in the cross CC107 × DH14, and between Avra10 and Avrk, Avra11 and AvrLa, and Avrh and the triadimenol response gene Tdl2 in CC138 × DH14.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1995.tb02663.x
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  • 7
    Electronic Resource
    Electronic Resource
    Perceptions of quality in the global market (1995)
    Bradford : Emerald
    The @TQM magazine 7 (1995), S. 52-56 
    Details
    ISSN: 0954-478X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Introduces the idea of nation equity via a world-wide quality pollcarried out by Bozell-Gallup; assesses its international implicationsfor the study of manufacturing quality. Outlines implications of thestudy for the United Kingdom. Highlights the importance of emerging EastEuropean markets for all exporters. States that nation equity is likelyto play an increasingly pivotal role in product quality perception.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09544789510103789
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  • 8
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    Assessing the impact of a family planning nurse training program in Egypt (1995)
    Amsterdam : Periodicals Archive Online (PAO)
    Population research and policy review. 14:4 (1995:Dec.) 395-409 
    Details
    ISSN: 0167-5923
    Topics: Sociology
    Notes: FAMILY PLANNING AND FERTILITY
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:w515-1995-014-04-000002
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  • 9
    Electronic Resource
    Electronic Resource
    Human class II MHC molecule HLA-DR1: X-ray structure determined from three crystal forms (1995)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 51 (1995), S. 946-961 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The three-dimensional structure of the extracellular region of a 60 kDa class II major histocompatibility glycoprotein, HLA-DR1, was determined to 3.3 Å by X-ray crystallography using three crystal forms, each containing two molecules per asymmetric unit. Phases were initially determined to 4.2 Å using two crystal forms both containing DR1 from human lymphocytes complexed with a mixture of endogenous peptides. One of these crystal forms also contained a 28 kDa superantigen, Staphylococcus aureus enterotoxin B (SEB), bound to each DR1 molecule. Single-isomorphous replacement phasing followed by iterative two- and fourfold non-crystallographic real-space averaging between the two crystal forms resulted in 4.2 Å resolution electron-density maps from which the paths of the polypeptides could be traced. Cryocrystallography and synchrotron radiation were then used to extend the resolution to 3.3 Å for the two lymphocyte-derived crystal forms and for a third crystal form grown from DR1 produced in insect cells and complexed in vitro with a specific antigenic peptide. Iterative sixfold non-crystallographic real-space averaging resulted in an electron- density map into which 340 of 371 residues could be fit unambiguously. Crystal contacts and the existence of a parallel dimer of the DR1 αβ heterodimer in the three crystal forms are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444995002289
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  • 10
    Electronic Resource
    Electronic Resource
    Oxidation Behaviour and High Temperature Strength of Alumina-Silicon Carbide Nanocomposites (1995)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 113 (July 1995), p. 65-70 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/44/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.113.65.pdf
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