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Michael D. Cohen 《Asian Security》2020,16(3):323-342
ABSTRACT What causes variation in the foreign policies of U.S. allies regarding their desired U.S. military role in their region and their troop commitments to U.S. military interventions? This paper addresses this question through documenting and explaining the sources of variation in Australia’s foreign policies regarding these issues over four decades. Treating the two major political parties in Australia and their respective leaders who self-select into them as endogenous, the paper argues that Australian foreign policy, whilst always supportive of the U.S. alliance, has systematically varied. This variation has correlated with the political party in power while the late Cold War and post-Cold War balances of power remained constant. While the Labor party has only been willing to send combat troops to large U.S. military interventions when the latter have a supporting United Nations Security Council Resolution, the conservative Liberal party has been willing to military intervene without this multilateral support. The Labor party, unlike the Liberal party, has also frequently proposed the formation and consolidation of multilateral regional institutions. These preferences render the U.S. to have been necessary for the Labor Party but sufficient for the Liberal party. Future Sino-U.S. armed conflict would provide a harder test of these hypotheses. 相似文献
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Massonnet G Buzzini P Jochem G Stauber M Coyle T Roux C Thomas J Leijenhorst H Van Zanten Z Wiggins K Russell C Chabli S Rosengarten A 《Journal of forensic sciences》2005,50(5):1028-1038
A collaborative study on Raman spectroscopy was carried out by members of the ENFSI (European Network of Forensic Science Institutes) European Fibres Group (EFG) on three dyed fibers: two red acrylics and one red wool. Raman instruments from six different manufacturers were tested as well as nine different laser wavelengths ranging from blue (lambda = 458 nm) to near infrared-NIR (lambda = 1064 nm). This represents the largest comparison study of Raman analytical parameters carried out on identical fiber samples. For the chosen fiber and dye samples, red lasers (lambda = 633 and 685 nm) gave the poorest spectral quality whereas blue (458 nm), green (514 nm) and near infrared lasers (785, 830 and 1064 nm) provided average results. Blue (488 nm) and green lasers (532 nm) globally gave the best quality spectra. Fluorescence problems were often encountered with some of the excitation wavelengths and therefore a flexible Raman instrument equipped with different lasers can be recommended to measure forensic fiber samples. The instrument should also be equipped with a Raman microscope in order to be able to focus on a single fiber. This study shows that Raman spectroscopy usually enables the identification of the main dye present in a colored fiber; however, minor dye components are much more difficult to detect. SERRS (Surface Enhanced Resonance Raman Scattering) techniques give an improvement of the dye's spectral intensity but no spectral improvement was observed for the two red acrylic and red wool fibers tested. 相似文献
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Genipin, the hydrolytic product of geniposide, which is extracted from gardenia fruit, shows good potential as a fingerprint reagent. It develops latent fingerprints on paper as blue impressions with good contrast and resolution. Even very faint impressions that are barely visible in ambient light will fluoresce brightly upon illumination at ca. 590 nm and are best viewed with a barrier filter above 630 nm. Potential advantages of genipin are the combination of colorimetric and fluorogenic activity in one reagent as well as its being a safe and environmentally friendly natural product. 相似文献
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Deana Dorman Logan Judith A. Calder Betty L. Cohen 《Journal of youth and adolescence》1980,9(3):263-269
A cultural tradition to acknowledge a girl's first menstrual period is proposed in order to overcome the negative connotation of the event. Three basic questions regarding such a tradition are addressed: Who would participate? What would it mean? What type of activity should it be? A research team consisting of a psychologist, a nurse, and a social worker suggests answers based on their interviews with mothers and daughters, as well as their collection of menarche anecdotes from women psychologists. 相似文献
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