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41.
Robert P. Berrens Alok K. Bohara Amy Baker Ken Baker 《Journal of policy analysis and management》1999,18(2):303-326
Leaking underground storage tanks (USTs) are a pervasive national environmental problem. Cleanup of leaking USTs is largely publicly financed and under the control of state agencies. In the transition to new compliance standards, individual states have taken advantage of provisions in federal regulations to implement their own programs. This raises the policy question of environmental federalism and the appropriate locus of government control. The objectives of this study are to examine the revealed preferences of a state UST bureau. New Mexico was one of the first state programs to use risk assessments in setting funding priorities. We analyze the statistical determinants of funding decisions and find strong evidence that risk information is used. Although our case study provides a measure of support for state control, the argument is strengthened if public financing is limited to the cleanup of historical pollution, rather than a means for providing insurance for prospective pollution. ©1999 by the Association for Public Policy Analysis and Management. 相似文献
42.
Ken‐ichiro Nakao Ph.D. Yuki Tatara M.S. Kazuhiko Kibayashi M.D. 《Journal of forensic sciences》2017,62(6):1554-1558
Bone samples are used for analysis of drugs in decomposed or skeletonized bodies. Toxicological analyses of buried bones are important for determining the causes and circumstances of death. In this study, methamphetamine and amphetamine concentrations in heart blood, thigh muscles, and thighbones were analyzed using solid‐phase extraction with liquid chromatography–tandem mass spectrometry. Methamphetamine concentrations in heart blood, thigh muscle, and thighbone ranged from 0.041 to 0.873 μg/mL, 0.649 to 2.623 μg/g, and 56.543 to 643.371 μg/g, respectively. Thighbone concentrations were significantly higher than those in heart blood or thigh muscles were. Methamphetamine concentrations in buried thighbone (4.010–45.785 μg/g) were significantly lower than those of unburied thighbones were (56.543–643.371 μg/g). Methamphetamine and amphetamine were detected in thighbones buried for 7–180 days. These findings indicate that the methamphetamine concentrations in bone are higher and decrease after burial in soil. 相似文献
43.
Julie C. Bowker Katelyn K. Thomas Kelly E. Norman Sarah V. Spencer 《Journal of youth and adolescence》2011,40(5):545-555
Rejection sensitivity (RS) refers to the tendency to anxiously expect, readily perceive, and overreact to experiences of possible rejection. RS is a clear risk factor for psychological maladaptation during early adolescence. However, there is growing evidence of significant heterogeneity in the psychological correlates of RS. To investigate when RS poses the greatest psychological risk during early adolescence, this study examines mutual best friendship involvement (or lack thereof) and the best friends?? RS as potential moderators of the associations between RS and psychological difficulties. Participants were 150 7th grade students (58 boys; M age = 13.05 years) who nominated their best friends, and reported on their RS, social anxiety, and self-esteem. Results from a series of hierarchical multiple regression analyses indicated that mutual best friendship involvement and best friends?? RS were both significant moderators when fear of negative evaluation (a type of social anxiety) served as the dependent variable. The association between RS and fear of negative evaluation was stronger for adolescents without mutual best friends than adolescents with mutual best friends. In addition, the association between RS and fear of negative evaluation was the strongest for adolescents whose best friends were highly rejection sensitive (relative to adolescents whose best friends were moderately or low in RS). Findings highlight the importance of considering best friendships in studies of RS and strongly suggest that, although having mutual best friendships may be protective for rejection sensitive adolescents, having a rejection sensitive best friend may exacerbate difficulties. The significance of friends in the lives of rejection sensitive adolescents is discussed as well as possible applied implications of the findings and study limitations. 相似文献
44.
Perlin MW Legler MM Spencer CE Smith JL Allan WP Belrose JL Duceman BW 《Journal of forensic sciences》2011,56(6):1430-1447
Abstract: DNA mixtures with two or more contributors are a prevalent form of biological evidence. Mixture interpretation is complicated by the possibility of different genotype combinations that can explain the short tandem repeat (STR) data. Current human review simplifies this interpretation by applying thresholds to qualitatively treat STR data peaks as all‐or‐none events and assigning allele pairs equal likelihood. Computer review, however, can work instead with all the quantitative data to preserve more identification information. The present study examined the extent to which quantitative computer interpretation could elicit more identification information than human review from the same adjudicated two‐person mixture data. The base 10 logarithm of a DNA match statistic is a standard information measure that permits such a comparison. On eight mixtures having two unknown contributors, we found that quantitative computer interpretation gave an average information increase of 6.24 log units (min = 2.32, max = 10.49) over qualitative human review. On eight other mixtures with a known victim reference and one unknown contributor, quantitative interpretation averaged a 4.67 log factor increase (min = 1.00, max = 11.31) over qualitative review. This study provides a general treatment of DNA interpretation methods (including mixtures) that encompasses both quantitative and qualitative review. Validation methods are introduced that can assess the efficacy and reproducibility of any DNA interpretation method. An in‐depth case example highlights 10 reasons (at 10 different loci) why quantitative probability modeling preserves more identification information than qualitative threshold methods. The results validate TrueAllele® DNA mixture interpretation and establish a significant information improvement over human review. 相似文献
45.
Ken Wilkening 《政策研究评论》2011,28(2):125-148
Dimitrov et al. argue that nonregimes are a worthy object of research attention that can contribute to international regime theory. Case studies, however, are still sparse. In this article, I examine Arctic haze, an issue area where a transnational environmental problem existed but no regime formed. Arctic haze was (re‐)discovered in 1971 but by 2000, the window of opportunity to form a regime had closed. What factors explain why an Arctic haze regime was not formed between 1971 and 2000? I claim science‐based factors play the dominant role. An analytical approach applicable to the science‐policy interface was employed. Using this approach, I conclude that the Arctic haze nonregime is best explained by the absence of scientifically documented and compelling transboundary consequences to ecosystems and humans. This is a product of the unique nature of the Arctic atmosphere. 相似文献
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47.
Abstract The literature on intelligence little describes or comparatively analyzes the intelligence services of insurgent groups. This article partially fills the gap by assessing the intelligence activities of FARC – the Revolutionary Armed Forces of Colombia. FARC intelligence displays similarities to, as well as sharp differences from, the intelligence activities of other insurgent groups and established states. Like FARC as a whole, FARC intelligence is decentralized. Its strength is its focus on tactical military intelligence. Collection on strategic political issues, analysis, and counterintelligence are relatively weak. FARC's intelligence weaknesses limit its prospects for strategic success and its intelligence-related vulnerabilities offer the Colombian government opportunities to exploit. 相似文献
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50.
Identification of impurities and statistical classification of methamphetamine tablets (Ya-Ba) seized in Thailand 总被引:4,自引:0,他引:4
Puthaviriyakorn V Siriviriyasomboon N Phorachata J Pan-ox W Sasaki T Tanaka K 《Forensic science international》2002,126(2):105-113
Impurity profiles of methamphetamine tablets seized in Thailand have been investigated. The samples are extracted with small amounts of ethyl acetate under alkaline condition and the extracts are analyzed by capillary gas chromatography. Nine compounds (1,2-dimethyl-3-phenylaziridine, ephedrine, methylephedrine, N-formylmethamphetamine, N-acetylmethamphetamine, N-formylephedrine, N-acetylephedrine, N,O-diacetylephedrie, methamphetamine dimer) are identified as impurities in methamphetamine tablet. Caffeine and ethyl vanillin are also detected as diluents and/or adulterants, and acetylcodeine monoacetylmorphine and diacetylmorphine are contained in many samples. In addition, trans-3,4-dimethyl-5-phenyl-2-oxazolidone is newly found as an impurity. For characterization and comparison of methamphetamine tablet exhibits, intensely and commonly detectable nine peaks are selected as the factor for multivariate analysis. The procedures reported here permit classification of 250 analyzed exhibits into five groups and characterization of classified groups. 相似文献