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In 3 studies, participants made choices between hypothetical financial, environmental, and health gains and losses that took effect either immediately or with a delay of 1 or 10 years. In all 3 domains, choices indicated that gains were discounted more than losses. There were no significant differences in the discounting of monetary and environmental outcomes, but health gains were discounted more and health losses were discounted less than gains or losses in the other 2 domains. Correlations between implicit discount rates for these different choices suggest that discount rates are influenced more by the valence of outcomes (gains vs. losses) than by domain (money, environment, or health). Overall, results indicate that when controlling as many factors as possible, at short to medium delays, environmental outcomes are discounted in a similar way to financial outcomes, which is good news for researchers and policy makers alike. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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D. Bruns B. Büchner R. Gross T. Lorenz S. Uchida 《Journal of Low Temperature Physics》1999,117(5-6):1453-1457
We present thermal expansion measurements on a La1.85Sr0.15CuO4
single crystal in external magnetic fields. Clear anomalies of the thermal expansion are observed at the superconducting transition. We have studied in detail the anisotropic influence of external fields on the anomalies. As expected, the field dependence is maximum for B c and minimum for B c. The measured angular dependence corresponds to that of an anisotropic 3d superconductor with an anisotropy parameter 18. 相似文献
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Elke?Richling Corinna?H?hn Bernhard?Weckerle Frank?Heckel Peter?SchreierEmail author 《European Food Research and Technology》2003,216(6):544-548
The δ13CVPDB and δ18OVSMOW values of caffeine isolated from commercial caffeine-containing foods were determined by isotope ratio mass spectrometry (IRMS) using elemental analysis (EA) in the 'combustion' (C) and 'pyrolysis' (P) modes (EA-C/P-IRMS), respectively. In total, 69 samples (32 guarana products, 20 teas, 12 coffee products, and 5 maté teas) were analyzed together with three references of synthetic caffeine. Validation was done by excluding isotope discrimination in the course of sample preparation and determining linear dynamic ranges for EA-P-IRMS measurements. In total, five samples (one caffeine-containing soft drink and four guarana products) under study contained synthetic caffeine. 相似文献
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Adhesive metallization of filter media by means of vacuum arc technology Textile filter media made of high‐performance fibres are used for separation of pollutants from industrial exhaust gases with higher temperatures. PVD‐coating is an innovative process for antistatic finishing of high‐temperature resistant textiles. PVD‐metallizations are extremely adherent, conductive and does not affect the throughput of gas. The results are the base for the industrial use in different textile applications. 相似文献
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