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  • Blackwell Publishing Ltd  (36,056)
  • International Union of Crystallography  (15,196)
  • American Association for the Advancement of Science (AAAS)  (14,846)
  • 1980-1984  (39,732)
  • 1975-1979  (26,366)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Bioluminescent countershading in midwater animals: evidence from living squid (1976)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 191 (4231). pp. 1046-1048.
    Details
    Publication Date: 2020-05-08
    Description: Midwater squid respond to overhead illumination by turning on numerous downward-directed photophores; they turn off the photophores when overhead illumination is eliminated. The squid are invisible when the intensity of the photophores matches the intensity of the overhead illumination. These results strongly support the theory of ventral bioluminescent countershading.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Strontium-Calcium Thermometry in Coral Skeletons (1979)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 204 (4391). pp. 404-407.
    Details
    Publication Date: 2019-05-24
    Description: The strontium to calcium ratio of skeletal aragonite in three genera of reef-building corals varies as a simple function of temperature and the strontium to calcium ratio of the incubation water. The strontiumlcalcium distribution coefficients of coral aragonite apparently differ from the corresponding coefficient of inorganically precipitated aragonite. With some care, coral skeletons can be used as recording thermometers.
    Type: Article , PeerReviewed
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  • 3
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    Nautilus Growth and Longevity: Evidence from Marked and Recaptured Animals (1984)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 224 (4652). pp. 990-992.
    Details
    Publication Date: 2019-03-19
    Description: Study of Nautilus belauensis i its natural habitat in Palau, West Caroline Islands, shows that growth is slow (0.1 millimeter of shell per day on the average) and decreases as maturity is approached and that individuals may live at least 4 years beyond maturity. Age estimates for seven animals marked and recaptured between 45 and 355 days after release range from 14.5 to 17.2 years. These data indicate that the life-span of Nautilus may exceed 20 years and that its life strategy is very different from that of other living cephalopods.
    Type: Article , PeerReviewed
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  • 4
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    Detection of Overflow Events in the Shag Rocks Passage, Scotia Ridge (1981)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 213 (4512). pp. 1113-1114.
    Details
    Publication Date: 2019-01-21
    Description: During an almost yearlong period of observations made with a current meter in the fracture zone between the Falkland Islands (Islas Malvinas) and South Georgia, several overflow events were recorded at a depth of 3000 meters carrying cold bottom water from the Scotia Sea into the Argentine Basin. The outflow bursts of Scotia Sea bottom water, a mixing product of Weddell Sea and eastern Pacific bottom water, were associated with typical speeds of more than 28 centimeters per second toward the northwest and characteristic temperatures below 0.6°C. The maximum 24-hour average speed of 65 centimeters per second, together with a temperature of 0.29°C, was encountered on 14 November 1980 at a water depth of 2973 meters, 35 meters above the sea floor.
    Type: Article , PeerReviewed
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  • 5
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    Calcium Carbonate Hexahydrate from Organic-Rich Sediments of the Antarctic Shelf: Precursors of Glendonites (1982)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 216 (4550). pp. 1128-1131.
    Details
    Publication Date: 2018-03-08
    Description: Large euhedral crystals of calcium carbonate hexahydrate were recovered from a shelf basin of the Bransfield Strait, Antarctic Peninsula, at a water depth of 1950 meters and sub-zero bottom water temperatures. The chemistry, mineralogy, and stable isotope composition of this hydrated calcium carbonate phase, its environment of formation, and its mode of precipitation confirm the properties variously attributed to hypothetical precursors of the glendonites and thereby greatly expand their use in paleoceanographic interpretation.
    Type: Article , PeerReviewed
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  • 6
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    Estimates of Cenozoic Oceanic Sedimentation Rates (1977)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 197 (4298). pp. 53-55.
    Details
    Publication Date: 2018-02-07
    Description: Estimation of average Cenozoic sedimentation rates for the Atlantic, Indian, and Pacific oceans indicates global synchronous fluctuations. Paleocene-early Eocene and late Eocene-early Miocene rates are only a fraction of middle Eocene and middle Miocene-Recent rates. These changes must reflect significantly different modes of continental weathering, which may be due to alternate states of atmospheric circulation marked by reduction of global precipitation.
    Type: Article , PeerReviewed
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  • 7
    Electronic Resource
    Electronic Resource
    SPACE AND TIME COMPARISONS OF PURCHASING POWER PARITIES AND REAL VALUES (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 30 (1984), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The calculation of purchasing power parities and quantity comparisons for a given year provides interesting information about the relative importance of countries. However, it is necessary to make these estimates annually in order to enable users to apply these parities for international comparison of annual data expressed in national currency. The paper deals with the problems related to merging spatial comparisons and temporal volume and price movements for the countries of the European Community. For these countries full information was collected in 1975 and in 1980, whereas in the intermediate years some price data were collected and price indices at a detailed level have also been collected. First the theoretical problems of consistency between the spatial results and temporal indices are discussed. Because no immediate consistency can be obtained, several methods are proposed to achieve consistency, by estimating one unique set of spatial and temporal indices. The available information for the period 1975-80 has been used in order to test the numerical differences between two sets of parities and price indices over time. Besides theoretical reasons for inconsistency, it is also necessary to take into account errors in the price observations or in the price indices. The results presented in the paper should be considered as provisional and further work will be undertaken to obtain better insights into the inconsistency between these sets of data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1984.tb00477.x
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  • 8
    Electronic Resource
    Electronic Resource
    THE HIDDEN ECONOMY: STATE AND PROSPECTS FOR MEASUREMENT (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 30 (1984), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: To know the size and development of the hidden or underground economy is important for policy making, mainly because the measures undertaken may be misdirected if they are based on biased official statistics. The hidden economy can be measured by considering indicators. The direct methods are based on voluntary surveys and on tax auditing and other compliance methods. The indirect estimation methods rely on the identification of residuals with respect to income and expenditures, as well as in the labor and money markets. The strengths and weaknesses of each of these measurement approaches are discussed and the resulting estimates of the size of the hidden economy are compared. A different approach to measurement is to look at the determinants leading to the existence and growth of the hidden economy. Finally, the method of “unobserved variables” allows the combination of the two approaches by simultaneously considering the determinants and indicators of the under- ground economy. The results show a considerable range of sizes for a given country and year. Though there is a broad range of size estimates, there is general agreement that the hidden economy's size has been growing for all countries over recent decades. Further progress in quantitative knowledge about the hidden economy requires the development of a theoretical model which analyses the interdependencies between the official private sector, the hidden economy, and the public sector.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1984.tb00474.x
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  • 9
    Electronic Resource
    Electronic Resource
    DECOMPOSING THEIL'S INCOME OF INCOME INEQUALITY INTO BETWEEN AND WITHIN COMPONENTS: A NOTE (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 30 (1984), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1984.tb00479.x
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  • 10
    Electronic Resource
    Electronic Resource
    THE TREATMENT OF PENSIONS AND INSURANCE IN NATIONAL ACCOUNTS (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 29 (1983), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: In the course of the nearly two decades since the revised SNA was developed, the role of pensions and insurance in the developed western economies has been significantly altered. The United Nations System of National Accounts (SNA) is not fully consistent in its treatment of pension and insurance transactions. This paper examines whether, in view of the changed institutional context, a modification of the SNA treatment of this complex of flows would be desirable. It investigates the impact on household income and saving of adopting a somewhat more consistent transactor/transaction approach for all pension and insurance transactions. Four main topics are covered: (1) social security, (2) private pensions, (3) life insurance, and (4) casualty insurance. Each is considered in terms of the treatment of contributions, the treatment of benefits, and the handling of reserves and the income generated by them. The same sorts of problem arise in all four cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1983.tb00656.x
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