Cities offer a large menu of possible employment and leisure opportunities. The gains from such consumer city leisure are likely to be lower on more polluted days. We study the association between daily consumption activity and outdoor air pollution in China and find evidence in favor of the hypothesis that clean air and leaving one's home for leisure trips are complements. Given the high levels of air pollution in cities in the developing world, regulation induced improvement in environmental quality is likely to further stimulate demand for the consumer city. 相似文献
In 1940, Gretchen Cutter and a WPA crew conducted excavations in the Mound Wio5 at the Fisher site in Will County, Illinois. We examined those materials as part of our reanalysis of the Fisher site excavations by George Langford and the University of Chicago. The mound’s material culture correlates with the Des Plaines phase but contains strong connections to the east, especially with Albee phase mortuary practices. Calibrated 14C dates and Bayesian modeling place the Des Plaines phase as contemporary with the Mound Wio5 mortuary’s primary use during the ninth to eleventh centuries. There is isotopic evidence of a mixed C3/C4 diet with some maize consumption. Mound Wio5 represents the only Terminal Late Woodland collective mortuary facility currently known in northeastern Illinois. The identification of such multigenerational communal Terminal Late Woodland mortuary practices lends support to the contention that they provided the cultural base for the emergence of the distinctive Langford Tradition accretional mortuary mounds. 相似文献
This study examines preservation of microfossils identified as introduced Ipomoea batatas in soils from northern New Zealand. Starch grains and xylem cells showed highly variable preservation, from good to extremely poor. For starch grains, the latter included brown-staining, expansion and distortion of the grain and vacuole, loss of the Maltese cross, pitting, cracking, fragmentation and disintegration. Degraded xylem showed similar brown-staining, occasional cracking, cross-wise fragmentation, with wall pits becoming progressively less visible or showing distortion, expansion and coalescence. 相似文献
The Solitary Self: Jean‐Jacques Rousseau in Exil and Adversity. By Maurice Cranston (Chicago, IL: University of Chicago Press, 1997) xii + 247 pp. $29.95 cloth.
The Self‐Aware Image: An Insight into Early Modern Meta‐Painting. By Victor I. Stoichita (Cambridge: Cambridge University Press, 1997) xv + 345 pp. $85.00, £55.00 cloth.
The Cambridge Companion to Nietzsche. Edited by Bernd Magnus and Kathleen M. Higgins (Cambridge: Cambridge University Press, 1996) ix + 403 pp. $18.95, £13.95 paper, $59.95, £40.00 cloth.
David Hume: Political Essays. Edited by Knud Haakonssen, Cambridge Texts in the History of Political Thought (Cambridge: Cambridge University Press, 1994) lxvi + 346 pp. $49.95, £30.00 cloth, $15.95, £10.95 paper.
Sartre, Foucault, and Historical Reason. By Thomas R. Flynn (Chicago and London: The University of Chicago Press, 1997) 340 + xvi pages. $18.95 paper.
Shaping World History: Breakthroughs in Ecology, Technology, Science, and Politics. By Mary Kilbourne Matossian (Armonk, NY: M.E. Sharpe, 1997) 264 pp. $62.95 cloth, $22.95 paper. 相似文献
SummaryAlthough Rousseau's treatment of his children has provoked much controversy, sustained and scholarly discussions are rare. This study is the first to present the evidence comprehensively and systematically. It engages each of Rousseau's contentions about his children in order to carefully discern the significance of this episode for his life and work. It offers an analytical table of each rationale—nineteen different ones, of five major types. It discusses documents of 1751 and 1778 which strongly defend the actions, the ambiguous arguments in the Second Part of the Confessions (1769–1770), the oscillations in the period surrounding the Confessions (1764–1770), and finally the development of unqualified remorse in the middle period of Emile (1757–1762). It concludes by advancing a middle position between those who ultimately see his behaviour and associated excuses as demonstrating his unchecked individualism and subjectivism, and those who ultimately absolve this episode in order to find him a moralist in good standing. 相似文献
Despite its rich tradition, there are key limitations to researchers' ability to make generalizable inferences about state policy innovation and diffusion. This paper introduces new data and methods to move from empirical analyses of single policies to the analysis of comprehensive populations of policies and rigorously inferred diffusion networks. We have gathered policy adoption data appropriate for estimating policy innovativeness and tracing diffusion ties in a targeted manner (e.g., by policy domain, time period, or policy type) and extended the development of methods necessary to accurately and efficiently infer those ties. Our state policy innovation and diffusion (SPID) database includes 728 different policies coded by topic area. We provide an overview of this new dataset and illustrate two key uses: (i) static and dynamic innovativeness measures and (ii) latent diffusion networks that capture common pathways of diffusion between states across policies. The scope of the data allows us to compare patterns in both across policy topic areas. We conclude that these new resources will enable researchers to empirically investigate classes of questions that were difficult or impossible to study previously, but whose roots go back to the origins of the political science policy innovation and diffusion literature. 相似文献