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51.
Hulya Dagdeviren Simon A. Robertson 《Development policy review : the journal of the Overseas Development Institute》2011,29(4):485-505
This article reviews the changing perspectives for improving access to water in the slums of developing countries, especially in sub‐Saharan Africa. While much of the literature continues to maintain an aversion to state‐led urban development policies, there is now increasing emphasis on the importance of informal, small‐scale providers and communitarian initiatives, following the many failures of privatisation. The article argues that market‐oriented solutions are inappropriate for sub‐Saharan African countries where over two‐thirds of the urban population live in squatter settlements with multidimensional challenges. 相似文献
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Simon Shufeng Xiao Insik Jeong Jon Jungbien Moon Chris Changwha Chung Jaiho Chung 《Journal of International Management》2013,19(2):118-137
This study proposes necessary modifications to the existing internationalization–performance relationship to meet the idiosyncrasies of China-specific contexts. We first hypothesize an S-shaped internationalization–performance relationship as the baseline and then investigate the moderating effects of a firm's governance structure and the degree of centralized government control on the relationship between its internationalization and performance. The results, based on a longitudinal sample of manufacturing firms in China for the 2001–2007 period, indicate that (1) the S-shaped internationalization–performance relationship holds for firms in China; (2) the governance structure moderates the internationalization–performance relationship such that increased profitability through internationalization is more likely for modernized firms than for their conventional local counterparts; and (3) the degree of centralized control moderates the internationalization–performance relationship such that increased profitability through internationalization is more likely for firms affiliated with higher level governments than for those affiliated with lower-level governments. 相似文献
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Following up on a research note by Stephen Moore published in 1985, this article compares the results of the survey conducted
in 1985 against one carried out in 2006 on the views of eminent social scientists (economists, political scientists, psychologists,
sociologists, historians and anthropologists) on immigration issues. Specifically, the surveys report on whether the respondents
are likely to favor an increase in the number of immigrants who are allowed into the United States and other issues such as
whether immigrants improve the economy.
Rita J. Simon is a sociologist who earned her doctorate at the University of Chicago. She is currently a “University Professor” in the School of Public Affairs and the Washington College of Law at American University, Washington, DC. Professor Simon has authored 37 books and edited 19 including: Immigration the World Over with James P. Lynch. She served as editor of The American Sociological Review and from 1983–1986 as editor of Justice Quarterly. In 1966, she received a Guggenheim Fellowship. Jennifer Kanaan is a doctoral candidate in Justice, Law and Society at American University in Washington, DC. 相似文献
Rita J. SimonEmail: |
Rita J. Simon is a sociologist who earned her doctorate at the University of Chicago. She is currently a “University Professor” in the School of Public Affairs and the Washington College of Law at American University, Washington, DC. Professor Simon has authored 37 books and edited 19 including: Immigration the World Over with James P. Lynch. She served as editor of The American Sociological Review and from 1983–1986 as editor of Justice Quarterly. In 1966, she received a Guggenheim Fellowship. Jennifer Kanaan is a doctoral candidate in Justice, Law and Society at American University in Washington, DC. 相似文献
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Prolapse is an extremely common condition, for which 11% of women will have a surgical procedure at some point in their lives. The recurrence rate after most of the traditional surgical procedures is high and upto 29% of women who have had surgery for prolapse will require a further operation. In order to improve the surgical outcome, there is currently much interest in the use of grafts to augment traditional repairs and new procedures have been developed using specifically developed grafts. These have been combined with minimally invasive surgical techniques in an attempt to reduce surgical morbidity. These procedures may improve the outcome of surgery for prolapse. However, there is currently a lack of long-term data from randomized trials to demonstrate their effectiveness and safety. 相似文献
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Do differences in reported life satisfaction between societies reflect real differences or do they reflect cultural differences in the way people rate their experiences? Study 1 showed that imagining better or worse life situations affected student respondents’ ratings of their own life satisfaction, as predicted by range–frequency theory. Study 2 investigated how German and Polish students rated their actual life satisfaction and how satisfied they would be under three imagined scenarios. Study 3 similarly compared Danish and Hungarian students. Both studies found significant differences in the rating of the hypothetical situations, and moderate correlations between ratings of satisfaction in the hypothetical situations and reality, but in neither study were national differences in actual satisfaction predicted by differences in hypothetical satisfaction. Overall, the results suggest that national differences in rated life satisfaction are real rather than reflecting differences in how satisfaction is rated. 相似文献
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Abstract The development of unit root tests continues unabated, with many recent contributions using techniques such as generalized least squares (GLS) detrending and recursive detrending to improve the power of the test. In this article, the relation between the seemingly disparate tests is demonstrated by algebraically nesting all of them as ratios of quadratic forms in normal variables. By doing so, and using the exact sampling distribution of the ratio, it is straightforward to compute, examine, and compare the test' critical values and power functions. It is shown that use of GLS detrending parameters other than those recommended in the literature can lead to substantial power improvements. The open and important question regarding the nature of the first observation is addressed. Tests with high power are proposed irrespective of the distribution of the initial observation, which should be of great use in practical applications. 相似文献