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  • Articles  (2,477)
  • Blackwell Publishing Ltd  (931)
  • American Association for the Advancement of Science (AAAS)  (809)
  • American Geophysical Union  (737)
  • 1985-1989  (1,366)
  • 1980-1984  (1,111)
  • 1970-1974
  • 1986  (1,366)
  • 1983  (1,111)
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  • 1985-1989  (1,366)
  • 1980-1984  (1,111)
  • 1970-1974
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  • 1
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    A Comparison of SIR-B Directional Ocean Wave Spectra with Aircraft Scanning Radar Spectra (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-06-20
    Description: Directional ocean wave spectra derived from Shuttle Imaging Radar-B (SIR-B) L-band imagery collected off the coast of southern Chile on 11 and 12 October 1984 were compared with independent spectral estimates from two airborne scanning radars. In sea states with significant wave heights ranging from 3 to 5 meters, the SIR-B-derived spectra at 18 degrees and 25 degrees off nadir yielded reasonable estimates of wavelengths, directions, and spectral shapes for all wave systems encountered, including a purely azimuth-traveling system. A SIR-B image intensity variance spectrum containing predominantly range-traveling waves closely resembles an independent aircraft estimate of the slope variance spectrum. The prediction of a U.S. Navy global spectral ocean wave model on 11 October 1984 exhibited no significant bias in dominant wave number but contained a directional bias of about 30 degrees espect to the mean of the aircraft and spacecraft estimates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beal, R C -- Monaldo, F M -- Tilley, D G -- Irvine, D E -- Walsh, E J -- Jackson, F C -- Hancock, D W 3rd -- Hines, D E -- Swift, R N -- Gonzalez, F L -- Lyzenga, D R -- Zambresky, L F -- New York, N.Y. -- Science. 1986 Jun 20;232(4757):1531-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17773503" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    The theta aurora (1986)
    American Geophysical Union
    Details
    Publication Date: 1986-01-01
    Print ISSN: 0148-0227
    Electronic ISSN: 2156-2202
    Topics: Geosciences
    Published by American Geophysical Union
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  • 3
    Electronic Resource
    Electronic Resource
    The relationship between stomatal conductance, transpiration rate and tracheid structure in Pinus radiata clones grown at different water vapour saturation deficits (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 6 (1983), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract. Stomatal conductance and needle water potential of P. radiata clones were measured after 2, 5 and 8 months on plants grown in controlled environment rooms with markedly different water vapour saturation deficits (D). Conductance was significantly lower at high D, but water potential differences between treatments were not significant. When trees were moved between treatments most of the changes in conductances occurred within 2 h, with residual changes after 24 h. Water potentials were not different 24 h after the trees were moved. The effects were completely reversible.Transpiration rates of individual trees were highest in the high D treatment and lowest in the low D treatment. They were not linearly related to D because of decreasing conductance with increasing D.Height growth, diameter growth and foliage areas were not significantly different between treatments. Tracheid lumen diameters tended to be larger in trees grown at higher D although treatment differences were not significant.There were significant clonal differences in shoot conductance and tracheid dimensions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1365-3040.ep11589331
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  • 4
    Electronic Resource
    Electronic Resource
    The Effects of a Land Drainage Scheme on the Salmonid Populations of the River Camowen, Co. Tyrone (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture research 14 (1983), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Annual electro fishing surveys were carried out over an 11-year period at five sites on an upland river, which was subject to dredging operations in connection with a land drainage scheme. Four of the sites were dredged 3 years after the start of the survey and one control site remained undredged throughout. The results indicated that dredging operations initially reduced Salmonid densities and that there was subsequently a progressive downstream recovery, with fry densities taking up to 6 years to improve at the most downstream site. Yearling and older fish recovered to pre-drainage scheme levels more rapidly than fry.Changes in population structure were also observed at three of the dredged sites. Two sites were considerably deepened and finally contained larger numbers of older fish than prior to the drainage scheme. The opposite effect was found to have taken place at a site, which became shallower as a result of drainage works, and contained larger numbers of fry at the end of the survey.Increased fish growth rates were also observed at all sites over the experimental period, and this may have been correlated with enrichment of the river system by leaching from increased fertilizer usage within the catchments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.1983.tb00049.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of Heat Treatment on Meat Enhancement of Dietary Iron Bioavailability of Meat/Ferrous Sulfate and Meat/Hemoglobin Mixtures Fed to Anemic Rats (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 51 (1986), 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: The effect of autoclaving on meat enhancement of dietary iron bioavailability was studied. Meat was mixed with FeSO4 or hemoglobin to obtain ratios of iron from meat to iron from FeSO4 or hemoglobin of 100:0, 75:25, 50:50, 25:75, and 0:100. One-half of each mixture (except meat:FeSO4 mixture 0:100) was autoclaved for 90 min at 15 psi. The meat mixtures were lyophilized and formulated into diets to provide approximately 35 mg Fe/kg. Hemoglobin regeneration efficiency (HRE) was determined as the percent iron gained as hemoglobin relative to the iron consumed. Heat increased the HREs of meat/hemoglobin mixtures and of hemoglobin. Heat did not affect the HRE of meat or meat/ferrous sulfate mixtures. Meat did not significantly enhance the bioavailability of total dietary iron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1986.tb11105.x
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  • 6
    Electronic Resource
    Electronic Resource
    Survival data for dewatered Rainbow Trout (Salmo gairdneri Rich.) eggs and alevins (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 2 (1986), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Survival of four intergravel development phases of rainbow trout, Salmo gairdneri Rich., in a dewatered environment varied with stage of development, duration of exposure, and relative humidity. Egg phases were considerably more tolerant than alevin phases. Cleavage eggs tolerated dewatering for 12 consecutive days (97% survival), the maximum period tested. Embryos tolerated dewatering until they began hatching on the eight day, when mortalities sharply increased. In contrast, eleutheroembryos had only 43% survival when dewatered 6h and pre-emergent alevins had only 36% survival when dewatered 2h. A few dewatered embryos died when relative humidity was 100%, but mortality increased significantly at 90 and 80% relative humidity. Survival of alevin phases, but not egg phases, in residual, non-flowing water was limited by formation of oxygen deficits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1986.tb00436.x
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  • 7
    Electronic Resource
    Electronic Resource
    Soybean leaf urease: Comparison with seed urease (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 57 (1983), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Soybeans, Glycine max (L.) Merr., from ureides for transport of nitrogen from the root nodule to the shoot. The most direct routes for ureide utilization include the degradation of ureide-derived urea to NH3 and CO2. Ureolytic activity was found in leaf disks of soybean and exhbited optimal activity at pH 7 in the presence of a high concentration of urea (250 mM). In vitro studies showed neither urea amidolyase nor urea dehydrogenase activity in soybean leaves and the ureolytic activity was characterized as urease. Several biochemical properties of soybean leaf urease were determined and compared to seed urease properties. Soybean leaf urease differed from that of seed in five ways: pH optima (5.25 and 8.75), apparent Km (0.8 mM), no inhibition by hydroxyurea, faster electrophoretic mobility and no cross-reactivity with soybean seed urease antibodies. The data suggest that urease is the primary urea metabolizing enzyme present in soybean leaves. The properties of soybean leaf urease support the conclusion that a unique isozyme of urease is present in leaf tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1983.tb02297.x
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  • 8
    Electronic Resource
    Electronic Resource
    Evidence against Linkage of von Recklinghausen Neurofibromatosis and Chromosome 19 Markers (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 486 (1986), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1986.tb48088.x
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  • 9
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    Propolypeptide of von Willebrand factor circulates in blood and is identical to von Willebrand antigen II (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-05-23
    Description: The generally mild bleeding disorder of von Willebrand disease is associated with abnormalities of two distinct plasma proteins, the large multimeric von Willebrand factor (vWF), which mediates platelet adhesion, and von Willebrand antigen II (vW AgII), which is of unknown function. The two proteins were found to have a common biosynthetic origin in endothelial cells and megakaryocytes, which explains their simultaneous absence in the severe form of this hereditary disease. Shared amino acid sequences from a 100-kilodalton plasma glycoprotein and from vW AgII are identical to amino acid sequences predicted from a complementary DNA clone encoding the 5' end of vWF. In addition, these proteins have identical molecular weights and immunologic cross reactivities. Monoclonal antibodies prepared against both proteins recognize epitopes on the pro-vWF subunit and on a 100-kilodalton protein that are not present on the mature vWF subunit in endothelial cell lysates. In contrast, polyclonal antibodies against vWF recognize both pro-vWF and vWF subunits. Thus, the 100-kilodalton plasma glycoprotein and vW AgII are identical proteins and represent an extremely large propolypeptide that is first cleaved from pro-vWF during intracellular processing and then released into plasma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fay, P J -- Kawai, Y -- Wagner, D D -- Ginsburg, D -- Bonthron, D -- Ohlsson-Wilhelm, B M -- Chavin, S I -- Abraham, G N -- Handin, R I -- Orkin, S H -- HL-30616/HL/NHLBI NIH HHS/ -- HL-34050/HL/NHLBI NIH HHS/ -- HL-34787/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 May 23;232(4753):995-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3486471" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens/immunology/*metabolism ; Blood Proteins/immunology/metabolism ; Endothelium/metabolism ; Humans ; Molecular Weight ; Peptide Fragments/analysis ; Protein Precursors/metabolism ; Protein Processing, Post-Translational ; von Willebrand Factor/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Voyager 2 radio observations of uranus (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-07-04
    Description: Within distances to Uranus of about 6 x 10(6) kilometers (inbound) and 35 x 10(6) kilometers (outbound), the planetary radio astronomy experiment aboard Voyager 2 detected a wide variety of radio emissions. The emission was modulated in a period of 17.24 +/- 0.01 hours, which is identified as the rotation period of Uranus' magnetic field. Of the two poles where the axis of the off-center magnetic dipole (measured by the magnetometer experiment aboard Voyager 2) meets the planetary surface, the one closer to dipole center is now located on the nightside of the planet. The radio emission generally had maximum power and bandwidth when this pole was tipped toward the spacecraft. When the spacecraft entered the nightside hemisphere, which contains the stronger surface magnetic pole, the bandwidth increased dramatically and thereafter remained large. Dynamically evolving radio events of various kinds embedded in these emissions suggest a Uranian magnetosphere rich in magnetohydrodynamic phenomena.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warwick, J W -- Evans, D R -- Romig, J H -- Sawyer, C B -- Desch, M D -- Kaiser, M L -- Alexander, J K -- Carr, T D -- Staelin, D H -- Gulkis, S -- Poynter, R L -- Aubier, M -- Boischot, A -- Leblanc, Y -- Lecacheux, A -- Pedersen, B M -- Zarka, P -- New York, N.Y. -- Science. 1986 Jul 4;233(4759):102-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17812898" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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