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  • 1
    Electronic Resource
    Electronic Resource
    Selective molecular oxygen oxidation of thio ethers to sulfoxides catalyzed by cerium(IV) (1988)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 110 (1988), S. 177-180 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00209a028
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  • 2
    Electronic Resource
    Electronic Resource
    Control of phosphorus inputs to a freshwater lake: a case study (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture research 26 (1995), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The legislation permitting control of phosphorus inputs into the aquatic environment From point and diffuse sources is complex and incomplete. River Purification Authorities in Scotland are responsible for the implementation of this legislation, and additionally, have adopted policies aimed at protecting waters from the effects of eutrophication. This paper describes the implementation of the legislation and the policies adopted by the Forth River Purification Board for the control of freshwater eutrophication by reference to the Lake of Menteith. in Central Scotland. The Lake of Menteith is described, the results of a detailed monitoring exercise are presented and the control measures applied are discussed. The Lake of Menteith is classified as mesotrophic. it has a high conservation and amenity value, and is operated as a commercial sport fishery by the Lake of Menteith Fishery Company. The Company operate a fish cage rearing unit on the Lake and two land-based rearing units on tributary streams. The phosphorus budget for the Lake is described and the implications for future controls discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.1995.tb00943.x
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  • 3
    Electronic Resource
    Electronic Resource
    Investigation of liquefaction mechanisms with molecular probes (1989)
    s.l. : American Chemical Society
    Energy & fuels 3 (1989), S. 268-272 
    Details
    ISSN: 1520-5029
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ef00014a025
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of Some Trace Lipids in Honey (1966)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 31 (1966), 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 trace lipids of cotton honey were extracted with Skellysolve B and diethyl ether. The crude lipid extract was subjected to trans-esterification, purified on a silicic acid column, and analyzed by gas-liquid chromatography. For further confirmation the crude lipid extract was saponified and the fatty acids identified by reverse-phase chromatography. The infrared spectrum of the crude lipid extract and methyl esters showed absorption bands typical of alkane and ester groups. Palmitic and oleic acids were respectively found in relative concentrations of 26.7 and 60.370, along with small amounts of lauric, stearic, and linoleic acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1966.tb03268.x
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  • 5
    Electronic Resource
    Electronic Resource
    Water transport across isolated term human amnion (1974)
    Springer
    The journal of membrane biology 18 (1974), S. 49-60 
    Details
    ISSN: 1432-1424
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary The hydrodynamic permeability of normal term human amnion is measured using pressure-driven bulk flows. The permeability coefficient is found to vary widely, variations between tissues taken from different subjects being significantly greater than those from samples taken from one subject. No correlation is observed between this coefiicient and either tissue thickness or the diffusional permeability coefficient measured using tritiated water; it is, however, found to be very sensitive to epithelial damage. The results indicate that the bulk transport of water through amnion is largely controlled by the amniotic epithelium alone. This contrasts with water diffusion which is a function of total membrane thickness. The two permeability coefficients cannot therefore be employed to formulate an equivalent pore model of the whole tissue. An equivalent pore model of the epithelial layer only is considered and the results assessed in the light of other evidence bearing on the structure of amnion. It is concluded that the epithelial layer is intersected by a large number of pores with radius 10 to 30 Å, and a smaller number of much broader pores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01870102
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  • 6
    Electronic Resource
    Electronic Resource
    The diffusion of tritiated water across isolated term human amnion (1974)
    Springer
    The journal of membrane biology 18 (1974), S. 39-48 
    Details
    ISSN: 1432-1424
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary The diffusional permeability of isolated human amnion to tritiated water is studied in relation to its histological structure. It is shown that the high permeability of this tissue requires an evaluation of the effects on diffusion of unstirred layers of solution adjacent to the membrane. After correction for such effects the magnitude of the permeabiiity coefficient is found to be both larger and more variable than previously reported. The principal reason for this is found to lie with variations in tissue thickness. The results show that for the purposes of water diffusion the amnion may be treated as a homogeneous membrane in the axial co-ordinate of flow. This finding is discussed in relation to other evidence concerning membrane structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01870101
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  • 7
    Electronic Resource
    Electronic Resource
    The crystal structure of a sulfone, 4,5-dihydrothiepin 1,1-dioxide (1972)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 28 (1972), S. 246-252 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740872002146
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  • 8
    Electronic Resource
    Electronic Resource
    Influence of modal composition on deformation in garnet Iherzolite nodules (1980)
    [s.l.] : Nature Publishing Group
    Nature 287 (1980), S. 422-423 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows the relationship between average porphyroclast area and percentage of olivine from the 10 thin sections. It seems that the lower the olivine content, the higher is the degree of deformation as recognized by the smaller areas of olivine porphyroclasts. The range of textures ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/287422a0
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  • 9
    Electronic Resource
    Electronic Resource
    Lead Exposure in Laysan Albatross Adults and Chicks in Hawaii: Prevalence, Risk Factors, and Biochemical Effects (1996)
    Springer
    Archives of environmental contamination and toxicology 31 (1996), S. 115-119 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Prevalence of lead exposure and elevated tissue lead was determined in Laysan albatross (Diomedea immutabilis) in Hawaii. The relationship between lead exposure and proximity to buildings, between elevated blood lead and droopwing status, and elevated liver lead and presence of lead-containing paint chips in the proventriculus in albatross chicks was also examined. Finally, the effects of lead on the enzyme δ-aminolevulinic acid dehydratase (ALAD) was determined. There was a significant association between lead exposure or elevated tissue lead and proximity to buildings in albatross chicks and presence of lead paint chips in the proventriculus and elevated liver lead in carcasses. Although there was a significant association between elevated blood lead and droopwing chicks, there were notable exceptions. Prevalence of elevated tissue lead in albatross chicks was highest on Sand Island Midway and much less so on Kauai and virtually nonexistent in other areas. Prevalence of lead exposure decreased as numbers of buildings to which chicks were exposed on a given island decreased. Laysan albatross adults had minimal to no lead exposure. There was a significant negative correlation between blood lead concentration and ALAD activity in chicks. Based on ALAD activity, 0.03–0.05 μg/ml was the no effect range for blood lead in albatross chicks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900086
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  • 10
    Electronic Resource
    Electronic Resource
    Lead exposure in laysan albatross adults and chicks in Hawaii: Prevalence, risk factors, and biochemical effects (1996)
    Springer
    Archives of environmental contamination and toxicology 31 (1996), S. 115-119 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Prevalence of lead exposure and elevated tissue lead was determined in Laysan albatross (Diomedea immutabilis) in Hawaii. The relationship between lead exposure and proximity to buildings, between elevated blood lead and droopwing status, and elevated liver lead and presence of lead-containing paint chips in the proventriculus in albatross chicks was also examined. Finally, the effects of lead on the enzyme δ-amino-levulinic acid dehydratase (ALAD) was determined. There was a significant association between lead exposure or elevated tissue lead and proximity to buildings in albatross chicks and presence of lead paint chips in the proventriculus and elevated liver lead in carcasses. Although there was a significant association between elevated blood lead and droopwing chicks, there were notable exceptions. Prevalence of elevated tissue lead in albatross chicks was highest on Sand Island Midway and much less so on Kauai and virtually nonexistent in other areas. Prevalence of lead exposure decreased as numbers of buildings to which chicks were exposed on a given island decreased. Laysan albatross adults had minimal to no lead exposure. There was a significant negative correlation between blood lead concentration and ALAD activity in chicks. Based on ALAD activity, 0.03–0.05 μg/ml was the no effect range for blood lead in albatross chicks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203915
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