Aquatic chemistry—An introduction emphasizing chemical equilibria in natural waters: By Werner Stumm and James J. Morgan. Second Edition,John Wiley and Sons, 1981, 780 pp. $45.00 (cloth), $27.50 (paper)     

George R. Helz 《Geochimica et cosmochimica acta》1982,46(8):1473

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The Resolving Power of Gross Earth Data   总被引：22，自引：0，他引：22  

George Backus  Freeman Gilbert 《Geophysical Journal International》1968,16(2):169-205

A gross Earth datum is a single measurable number describing some property of the whole Earth, such as mass, moment of interia, or the frequency of oscillation of some identified elastic-gravitational normal mode. We show how to determine whether a given finite set of gross Earth data can be used to specify an Earth structure uniquely except for fine-scale detail; and how to determine the shortest length scale which the given data can resolve at any particular depth. We apply the general theory to the linear problem of finding the depth-variation of a frequency-independent local Q from the observed quality factors Q of a finite number of normal modes. We also apply the theory to the non-linear problem of finding density vs depth from the total mass, moment, and normal-mode frequencies, in case the compressional and shear velocities are known.  相似文献   

Additional notes on the chalk of the medway valley,Gravesend west kent,North-east Surrey,and Grays (Essex)     

George Edward Dibley 《Proceedings of the Geologists' Association. Geologists' Association》1918,29(2):68-IN4

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Excursion to the Swansea district: Friday,April 18th,To Wednesday,April 23rd, 1924     

A.E. Trueman  Alan Stuart  T. Neville George 《Proceedings of the Geologists' Association. Geologists' Association》1924,35(4):308-315

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Excursion to Guildford: Saturday,June 29th, 1907     

George W. Young  E. Pearse 《Proceedings of the Geologists' Association. Geologists' Association》1907,20(3):174-178

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2. On a collection of fossils from the upper Greensand of Morden,Cambridgeshire     

H. George Fordham 《Proceedings of the Geologists' Association. Geologists' Association》1875,4(2):150-152

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The US freedom of navigation program preserving the law of the sea     

George Galdorisi 《Ocean & Coastal Management》1994,25(3)

The 1982 United Nations Convention on the Law of the Sea prescribed extensive rules of behavior for the international community in the oceanic regime. Some of the most important provisions of the Convention are those regarding the freedom of navigation and overflight in various maritime zones, i.e. territorial seas, international straits, archipelagos, exclusive economic zones and the high seas.While most coastal nations are complying with the navigation and overflight provisos of the Convention, some are not. Where excessive maritime claims exist, the US has evolved an ambitious Freedom of Navigation (FON) Program which challenges these excessive claims. This Program was initiated under the Carter Administration in 1979 and has continued, unabated, ever since.As the international community prepares for the day when the 1982 Convention becomes universally-recognized international law, there are likely to be periodic excessive maritime claims. In cases where the Convention's dispute settlement provisos fail to resolve excessive claims, the community of nations may find it useful to use the US FON Program as an example for the enforcement of maritime rules.  相似文献   

Introduction to the Proceedings of the GLOBEC Symposium on Effects of Climate Variability on Sub-Arctic Marine Ecosystems     

George L. Hunt Jr.  Ken Drinkwater 《Deep Sea Research Part II: Topical Studies in Oceanography》2007,54(23-26):2453

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Alternatives to whole animal testing: Use of cDNA probes for studies of phase I and II enzyme induction in isolated plaice hepatocytes     

N. Hitchman  M. Leaver  S. George 《Marine environmental research》1995,39(1-4)

Studies of xenobiotic metabolism and the regulation of enzyme systems for their metabolism (Phase I and II enzyme systems) require large numbers of animals, intensive use of experimental aquarium systems and in some instances can pose major problems when the compounds are scarce, expensive or too toxic to be disposed of easily. Previous studies have demonstrated the usefulness of isolated primary hepatocytes of fish for metabolic and enzyme induction studies. Functionally and structurally competent hepatocytes were isolated from juvenile plaice and after overnight acclimation to culture conditions, were exposed to a variety of PAHs for 24h. The levels of CYP1A1, phenol UDPGT and GST-A mRNAs were then estimated by slot blotting and hybridisation to their cDNA probes. The method enabled rapid and easy determination of the structure/activity relationships of these compounds as inducers of these key Phase I and II enzymes, and is potentially useful for screening large numbers of compounds both as an invitro toxicity test and for mechanistic studies.  相似文献   

Comparison of xenobiotic metabolizing enzymes of Tilapia with those of other fish species and interspecies relationships between gene families     

Asoka Pathiratne  Stephen George 《Marine environmental research》1996,42(1-4)

Baseline data for hepatic xenobiotic metabolizing biomarker enzyme activities were obtained for artificially reared tilapia Oreochromis niloticus, and were compared with those of the plaice (Pleuronectes platessa) and rainbow trout (Onchorynchus mykiss). Basal activities exhibited species variations with notably higher CYP1A and phenol UGT activities and lower GST activity in plaice than the freshwater species. Interspecies relationships between gene families determined by immunoblotting and substrate-activity profiles demonstrated the presence of homologous CYP1A and CYP3A enzymes in all three species, alpha class GSTs in plaice and trout, mu and pi class GSTs in trout and theta class GSTs in plaice and tilapia. CYP1A of tilapia was induced by 3-MC or PBO treatment, whilst CYP3A was induced by PCN treatment.  相似文献