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Colin J. Beck 《Sociological Forum》2009,24(2):337-356
Previous research on political Islam in the Middle East and North Africa has been limited in providing a generalizable theory of its origins and systematically account for the cross‐national variation in the prevalence of Islamic movements. Following a state‐centered approach, this study argues that state‐building activities are a primary origin of Islamic movements. Regimes adopt religious symbolism and functions that legitimate the role of Islam in the public sphere. State incorporation of religion thus creates Islam as a frame for political action, with increased access to mobilizing resources and better able to withstand repression and political exclusion. To provide an explicit and systematic test of cross‐national variation, data on 170 political and militant organizations across the region are analyzed. Results indicate that state incorporation of religion is a crucial factor in the religiosity of movement organizations. Mixed effects of political exclusion and repression are found. No support is found for theories of economic grievances or foreign influence as causes of Islamic mobilization. In sum, analysis suggests that a state‐centered perspective is the most fitting account of political Islam. 相似文献
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Colin L. Mallows 《The American statistician》2013,67(4):179-184
We describe several analyses in which robustness considerations have proved relevant. These examples exhibit the importance of (a) graphic displays as aids to formulating a preliminary model; (b) summary statistics that reduce the influence of outliers, that (c) give added opportunities of detecting relationships, and (d) are not unduly sensitive to granularity in the observations; and (e) techniques that pay due attention to anomalies in the data that superficially may appear to be negligible but that can obscure important effects. Finally, we make some general comments on the advantages and disadvantages of robust methodology. 相似文献
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Martin S. Ridout Malcolm J. Faddy Graeme Jones & Colin A. M. Campbell 《Journal of the Royal Statistical Society. Series C, Applied statistics》1998,47(2):265-277
Continuous time Markov models were used to analyse data from two bioassays to investigate the influence of β-fraction, a by-product of hop processing, on the two-spotted spider mite. The models were fitted to aggregate counts of the numbers of live and dead mites on treated and untreated halves of discs cut from leaves of hop and French bean plants. Some of the rate parameters were time dependent. Although not all parameters could be estimated precisely, the analysis enabled the quantitative effects of treatment over time to be estimated with reasonable precision. The estimated treatment effects were largely insensitive to the assumed values of other parameters. The first bioassay showed a progressive initial response to increasing concentration of β-fraction, although data at the intermediate concentration appeared anomalous. The second bioassay showed similar responses on hop and French bean leaves, with a stronger repellent effect on the lower leaf surface than on the upper surface. 相似文献
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McLeman Robert Grieg Clara Heath George Robertson Colin 《Population and environment》2022,43(4):500-529
Population and Environment - Machine learning techniques have to date not been widely used in population-environment research, but represent a promising tool for identifying relationships between... 相似文献
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