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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
881.
David A. Charters 《Intelligence & National Security》2013,28(4):163-177
This article represents an attempt to fill in some gaps in the historiography of Israeli ingelligence. It describes the origins and development of Jewish insurgent intelligence organizations and their operations against the British in Palestine, 1945–47. The essay presents a picture of rudimentary but effective intelligence serivces that made a significant, if not decisive, contribution to the armed struggle against the Briitsh. It examines critically some mysteries and myths surrounding Jewish intelligence in that conflict. By examining insurgent intelligence from the ‘bottom up’ ‐ against a government ‐ the article suggests there is a whole new ‘missing dimension’ of intelligence studies that bears scholarly attention. 相似文献
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883.
M. R.D. Foot 《Intelligence & National Security》2013,28(3):457-458
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886.
Kenneth A. Couch 《Journal of policy analysis and management》2013,32(4):878-878
887.
In this paper, we consider several features of teacher‐retention policies based on value‐added measures of effectiveness under a variety of empirically grounded rules and parameters. We consider the effects of policy design by varying the standard above which satisfactory teachers are expected to perform. We simulate recently adopted policies that remove teachers based on consecutive unsatisfactory performance and compare these to policies that remove teachers based on poor performance on average over a multiyear period. We also consider the precision of the performance measure and the underlying variation in teacher quality on policy effects. Finally, the simulation makes a step forward by incorporating recent empirical findings of a relationship between teacher quality and natural attrition from the profession. Our results indicate that deselection policies based on value‐added measures have the potential to improve teacher quality, although understanding the role of policy design, self‐selected exits, and the underlying variation in teacher quality is essential for determining policy effects. 相似文献
888.
M. L. Morris 《Economy and Society》2013,42(3):292-343
The existence of contradictions within the Ricardian system is by now well established. It remains, however, to consider the necessity of those contradictions. In this essay certain of the central paradoxes of Ricardian economics are treated not in terms of the deficiencies of Ricardo's analytical ability, the lack of proper ‘tools’, or the presence of ideological blinders, but in terms of their intrinsic necessity within the Ricardian conception of the capitalist economic system as a whole. We indicate how Ricardo's own insight into the functioning of the capitalist economy drives him to adopt principles of value which he himself considers to be in conflict. In light of this discussion it is possible to approach more closely to a determination of the essential character of Ricardian economics and of classical political economy as a whole. 相似文献
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