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  • 11
    Electronic Resource
    Electronic Resource
    Social responses to commodity shortages: The 1973–1974 gasoline crisis (1980)
    Springer
    Human ecology 8 (1980), S. 193-212 
    Details
    ISSN: 1572-9915
    Keywords: social responses ; gasoline shortage ; rationing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract This paper examines social responses to the 1973–1974 gasoline crisis in the United States, using newspaper reports of automobile driver behavior in two metropolitan areas and American Automobile Association data on the adoption of rationing plans and the availability of gasoline in 48 states. From these data it is possible to identify two types of responses: individual responses by automobile drivers, which occurred in every region affected by the shortages, and collective responses in the form of rationing plans adopted by governments and gas station operators in the regions with the most severe shortages. In the latter regions the responses occurred in sequence, with individual responses emerging first and collective responses developing later.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01561024
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    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Roads, speculators, and colonization in the Ecuadorian Amazon (1983)
    Springer
    Human ecology 11 (1983), S. 385-403 
    Details
    ISSN: 1572-9915
    Keywords: Amazon ; colonization ; roads ; policy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract In view of the generally disappointing performance of colonization projects in the Amazon basin, unusual projects merit close scrutiny because they may suggest a more effective organizational form for the colonization of humid lowlands. With this end in mind, this article examines those aspects of the Upano-Palora project in southeastern Ecuador that are attributable to the project's unusual plan of establishing settlements first and building the roads afterwards. It concludes that the “settlements first, roads second” developmental sequence reduced the costs of the project, produced an egalitarian pattern of landownership, and contributed to a pattern of land use that had potentially damaging ecological effects. These findings suggest that variations in the timing of road building have an important impact on outcomes in new land settlement schemes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00892246
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    Paper (German National Licenses)
    Fulltext
  • 13
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    Inhibitory activities of the marine streptomycete-derived compound SF2446A2 against Chlamydia trachomatis and Schistosoma mansoni (2015)
    Japan Antibiotics Research Association ; Nature Publishing Group
    In:  The Journal of Antibiotics, 68 (11). pp. 674-679.
    Details
    Publication Date: 2016-02-08
    Description: Infectious diseases caused by chlamydia or schistosomes are a major health problem worldwide, and particularly so in developing countries. The lack of appropriate vaccines renders the search for potent natural products against these disease-causing agents an urgent endeavor. Sponge-associated actinomycetes represent a rich reservoir for natural products. Among them, members of the genus Streptomyces are capable of synthesizing an impressive array of diverse natural products with a wide variety of biological activities. The naphthacene glycoside SF2446A2 was isolated from the calcium alginate beads culture of Streptomyces sp. strain RV15 that had originally been obtained from the Mediterranean sponge Dysidea tupha. Its structure was identified by spectroscopic analysis and MS and comparison with the literature data. SF2446A2 showed inhibitory activity against Chlamydia trachomatis and was able to inhibit the primary infection in a dose-dependent manner, as well as progeny formation. Moreover, it caused disruptive effects on the surface area of Schistosoma mansoni and affected the gonads by impairing oogenesis and spermatogenesis. Our current study demonstrates that sponge-associated actinomycetes are capable of providing compounds with new pharmacological activities and with relevance to drug discovery
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1038/ja.2015.54
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 14
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    Na2PtF6, its Crystal Structure, Characterization, and Ammonolysis to [Na(NH3)3]2[PtF6] (2015)
    Wiley-Blackwell
    Details
    Publication Date: 2015-01-09
    Description: We report on the single crystal structure of Na 2 PtF 6 , which was synthesized from (NH 4 ) 2 PtCl 6 and NaCl in a flow of 10 % F 2 in argon. The light yellow compound crystallizes in the Na 2 SiF 6 structure type with the trigonal space group P 321 and the lattice parameters a = 9.2981(2), c = 5.1147(1) Å, and V = 382.95(1) Å 3 at 123 K with Z = 3. Na 2 PtF 6 reacts with liquid ammonia yielding bis triamminesodium hexafluoridoplatinate(IV) [Na(NH 3 ) 3 ] 2 [PtF 6 ]. It crystallizes in the monoclinic space group C 2/ c with a = 14.0508(4), b = 8.4894(1), c = 12.8820(4) Å, β = 120.495(4)°, and V = 1324.05(6) Å 3 at 123 K with Z = 4. In contrast to the aqueous system, the solvolysis in NH 3 does not lead to the cleavage of the Pt–F bonds, at least not at the temperatures employed in this study.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley-Blackwell
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