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101.
A Global Model for Forecasting Political Instability 总被引:2,自引:0,他引:2
Jack A. Goldstone Robert H. Bates David L. Epstein Ted Robert Gurr Michael B. Lustik Monty G. Marshall Jay Ulfelder Mark Woodward 《American journal of political science》2010,54(1):190-208
Examining onsets of political instability in countries worldwide from 1955 to 2003, we develop a model that distinguishes countries that experienced instability from those that remained stable with a two-year lead time and over 80% accuracy. Intriguingly, the model uses few variables and a simple specification. The model is accurate in forecasting the onsets of both violent civil wars and nonviolent democratic reversals, suggesting common factors in both types of change. Whereas regime type is typically measured using linear or binary indicators of democracy/autocracy derived from the 21-point Polity scale, the model uses a nonlinear five-category measure of regime type based on the Polity components. This new measure of regime type emerges as the most powerful predictor of instability onsets, leading us to conclude that political institutions, properly specified, and not economic conditions, demography, or geography, are the most important predictors of the onset of political instability. 相似文献
102.
Jack Corbett Xu Yi-Chong Patrick Weller 《Cambridge Review of International Affairs》2018,31(2):183-202
AbstractThe unequal participation of member states in international organizations (IOs) undermines IOs’ legitimacy as global actors. Existing scholarship typically makes this assessment by referencing a combination of input—the interests IOs serve—and output—the decisions they take. This scholarship does not, however, pay enough attention to how IOs have responded to these concerns. We argue that IOs have used the participation of small states—whose membership most studies typically ignore—as an important means of generating what Vivian Schmidt calls ‘throughput’ legitimacy for their operations. We organize our analysis of ‘throughput’ legitimacy in IOs around four institutional mechanisms—(1) agenda setting; (2) leadership (s)election; (3) management and operation; and (4) service delivery—in which all states seek to exert influence. What emerges is an account of IOs seeking to balance ‘inputs’ and ‘outputs’ by way of ‘throughputs’. We conclude by arguing for an expanded focus on the means by which IOs generate ‘throughput’ legitimacy in future research. 相似文献
103.
Jack Garland B.Med. Benjamin Ondruschka M.D. Simon Stables M.B.Ch.B. Paul Morrow M.D. Kilak Kesha M.B.B.S. Charley Glenn M.D. Rexson Tse M.D. 《Journal of forensic sciences》2020,65(6):2019-2022
Postmortem computed tomography (PMCT) is a relatively recent advancement in forensic pathology practice that has been increasingly used as an ancillary investigation and screening tool. One area of clinical CT imaging that has garnered a lot of research interest recently is the area of “artificial intelligence” (AI), such as in screening and computer-assisted diagnostics. This feasibility study investigated the application of convolutional neural network, a form of deep learning AI, to PMCT head imaging in differentiating fatal head injury from controls. PMCT images of a transverse section of the head at the level of the frontal sinus from 25 cases of fatal head injury were combined with 25 nonhead-injury controls and divided into training and testing datasets. A convolutional neural network was constructed using Keras and was trained against the training data before being assessed against the testing dataset. The results of this study demonstrated an accuracy of between 70% and 92.5%, with difficulties in recognizing subarachnoid hemorrhage and in distinguishing congested vessels and prominent falx from head injury. These results are promising for potential applications as a screening tool or in computer-assisted diagnostics in the future. 相似文献
104.
Both Europe and the United States are confronting the challenges of economic and cultural integration posed by immigration. This article uses the ESS and CID surveys to compare transatlantic public opinion about immigrants and immigration. We find more tolerance for cultural diversity in the United States, but we also find that Americans, like Europeans, tend to overestimate the number of immigrants in their countries and tend to favor lower levels of immigration. The underpinnings of individual attitudes are similar in all countries and immigration attitudes are surprisingly unrelated to country-level differences in GDP, unemployment and the number and composition of the foreign born. An implication of these findings is that acceptance of higher levels of immigration, deemed by many to be an economic need, will require both more selective immigration policies and an emphasis on the cultural assimilation of newcomers. 相似文献
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106.
为应对水体污染,促进河流、湖泊和湿地健康,美国自上个世纪70以来逐步发展出一套由行政机关、检察官和公民社会主导的多元治理机制,在流域保护立法与司法实践中所积累的成功经验与失败教训能为我国提供借鉴。我国在面对"两化叠加"治理难题时,应确立融合平衡理念,进一步创新环境治理手段,拓展司法保护机制,同时完善协商和解途径,充分发挥社会各方面力量。 相似文献
107.
108.
Jack Dowie 《International Review of Law and Economics》1982,2(2):193-204
The economic analysis of law may be able to provide some reason why it is efficient to enforce wholly executory contracts, but (I submit) it has not done so. 相似文献
109.
Leadership involves both the activity and behavior of managers. There are at least six leadership theories, one of which, the personal-situational, has resulted in the development of a number of contingency models of managerial style. The one created by Hershey and Blanchard is used to assess the styles of 155 police managers. Findings of this research indicate that police managers use two or three styles, are as effective as nonpolice managers, and tend to avoid “risky” styles, particularly delegating. 相似文献
110.