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  • 1
    Electronic Resource
    Electronic Resource
    First estimate of annual mercury flux at the Kilauea main vent (1984)
    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 146-147 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In 1977, the US National Academy of Science's Environmental Studies Board ranked its mercury flux estimate of 2 x 107gyr1 as "insignificant"9. Even Anderson's higher value, 108 gyr"1 (rf. 10), is small (0.5%) compared with estimates of 2xl010gyr1 for planetary sources of atmospheric mercury which ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/309146a0
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  • 2
    Electronic Resource
    Electronic Resource
    Life in the calcium chloride environment of Don Juan Pond, Antarctica (1979)
    [s.l.] : Nature Publishing Group
    Nature 280 (1979), S. 828-829 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The extensive algal mat contained much adhering rock grains and fines and varied from yellow- to green- to black-brown. It could be lifted from the underlying sediment (Fig. 1, top). This mat was calculated to weigh about 1 tonne (0.167 g cm"1) and contained about 130 kg of organic matter. Near the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/280828a0
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  • 3
    Electronic Resource
    Electronic Resource
    Enhancement by Deoxyribonucleic Acid of the Catalytic Peroxidation of Pyrogallol (1957)
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 421-422 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Time-course of pyrogallol oxidation by Fe+++-hydrogen peroxide measured by appearance of coloured products with absorption maximum A 425 m/i. Lower curve, 0-01 m.mole ye+++ in reaction mixtures; upper curves, 0*01 m.mole Fe+++ plus 1-5 mgm. and 2-5 mgm. deoxyribonucleic acid ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/179421b0
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  • 4
    Electronic Resource
    Electronic Resource
    Regulation of Pyrogallol Oxidations by Alcohols and Sugars (1961)
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 180-181 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Although investigations of this type are not common, they possess potentially great significance as demonstrations of the regulatory effects to be expected when reactions take place within the colloidal system of the cell. Such investigations also stimulate interest in still other kinds of model ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/191180a0
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  • 5
    Electronic Resource
    Electronic Resource
    Enhancement of Peroxidase Action by Polysaccharides (1960)
    [s.l.] : Nature Publishing Group
    Nature 186 (1960), S. 391-391 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The present results show that the catalytic activity of peroxidase is increased appreciably by moderately low concentrations of starch and is somewhat influenced by methylcellulose as well. Oxidations were followed at 25 C. with the Bausch and Lomb 'Spectronic 20' spectrophotometer in 10-ml. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/186391a0
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  • 6
    Electronic Resource
    Electronic Resource
    Growth of corn in saline waters (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 50 (1980), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Eight cultivars of Zea mays plus the wild species Zea diploperennis were screened for seedling saline tolerance up to 3.2% NaCl. The best performances were given by the cultivars Mo 17 and commercial Hawaiian Super Sweet Hybrid. These two were then field grown on coral-cinder beds using drip irrigation with fresh of half-strength sea water (1.5–1.7% dissolved solids). Growth and chemical data for Mo 17 at 12 weeks show reduced growth but the same percentage dry matter. Ash, protein and total sulfur were higher in saline plants, silica and total phosphorus lower. Na, K. Mg, and Cl were elevated and Ca reduced slightly. Fe was also increased in saline plants. Both Mo 17 and Super Sweet Hybrid corn flowered and produced seed which retained essentially normal viability both in fresh and salt water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1980.tb02686.x
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  • 7
    Electronic Resource
    Electronic Resource
    Growth and Composition of Rye Seedlings Cultured in Sea Water (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 44 (1978), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Two-week-old Balbo rye seedlings cultured in aerated sea water are similar in fresh weight and linear dimensions to plants grown in aerated fresh and brackish waters. No significant differences were found in dry matter, nitrogen, sulfur or phosphorus content but tissue chloride increased markedly. Most of the Cl uptake was retained as chloride, but a small quantity was water insoluble and possibly in organic combination.We suggest that rye is a good prospect for development of lines suitable for sea water agriculture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb08608.x
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  • 8
    Electronic Resource
    Electronic Resource
    The protection of invertebrates, fish, and vascular plants against inorganic mercury poisoning by sulfur and selenium derivatives (1991)
    Springer
    Archives of environmental contamination and toxicology 20 (1991), S. 241-246 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Protection of organisms against mercury (Hg) poisoning is most commonly associated with the antagonistic effects of selenium (Se)-compounds against mercury alkyls in higher animals. This study shows that there is no consistent difference among Periodic Group VIA derivatives including S(IV), S(II) organic, Se (IV), Se (II) organic, possibly Se VI, as well and Te (IV) in their ability to protect against mercury poisoning. The organisms used in assays were:Coleus expiants (leaf abscission); turnip (germination); pea (growth inhibition and Hg uptake); a planarian (regeneration); the brineshrimp (excystment, phototaxy); the mealworm larvaTenebrio (metamorphosis) and the fish “tilapia” (survival, Hg uptake). Thiamine was the most effective of the Group VIA derivatives against the widest spectrum of organisms and test systems. In planarian regeneration, it was active where S and Se compounds failed. The most unexpected observation was the hastening of insect metamorphosis by HgCl2 and the enhancement of that effect by thiamine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01055910
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  • 9
    Electronic Resource
    Electronic Resource
    Acid rain in the kilauea Volcano area (Hawaii) (1989)
    Springer
    Archives of environmental contamination and toxicology 18 (1989), S. 65-73 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Acid precipitation is present and commonplace in and around Hawaii Volcanoes National Park, where thousands of hectares of rich and diverse tropical forest flourish. The existence of a strong relationship between rain volume and pH or of a strong correlation between acidity and sulfate content below a pH of approximately 4 has not been confirmed. The discrepancy between sulfate and pH raises serious questions about SO2 from Kilauea as the major source of local acidity. The 1985–1986 samples were relatively unstable at 20°C, again casting doubt on H2SO4 as the sole or major proton donor. Model experiments down to pH 2 withUsnea, a pollution-sensitive lichen, show that the anion associated with the protons is important, but that down to and including pH 3, exposure of up to 16 hr to H2SO4 and HCl does not impair photosynthetic CO2 uptake. We do not dismiss acid rain as an ecological hazard nor do we minimize the role of SO2 as a primary source of acidity, but rather demonstrate that other interpretations and alternatives exist and require more experimentation and analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01056191
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  • 10
    Electronic Resource
    Electronic Resource
    Autoxidation of Pyrogallol : General Characteristics and Inhibition by Catalase (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1153-1154 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When 5 x 10~8 M pyrogallol (10 ml. vol. in 50-ml. Erlenmeyer flasks) was incubated with shaking at 26-0 ± 0-2 ° C. in 0-01 M phosphate buffer, pH 4-10, colour formation could be followed readily in the Beckman DU spectrophotometer at 425 mfju The reaction was a linear function of time ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1811153a0
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