排序方式: 共有25条查询结果,搜索用时 15 毫秒
1.
Stevan Harnad Tim Brody Franois Vallires Les Carr Steve Hitchcock Yves Gingras Charles Oppenheim Heinrich Stamerjohanns Eberhard R. Hilf 《Serials Review》2004,30(4):310-314
The research access/impact problem arises because journal articles are not accessible to all of their would-be users; hence, they are losing potential research impact. The solution is to make all articles Open Access (OA; i.e., accessible online, free for all). OA articles have significantly higher citation impact than non-OA articles. There are two roads to OA: the “golden” road (publish your article in an OA journal) and the “green” road (publish your article in a non-OA journal but also self-archive it in an OA archive). Only 5% of journals are gold, but over 90% are already green (i.e., they have given their authors the green light to self-archive); yet only about 10–20% of articles have been self-archived. To reach 100% OA, self-archiving needs to be mandated by researchers' employers and funders, as the United Kingdom and the United States have recently recommended, and universities need to implement that mandate. 相似文献
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Eberhard S 《Work (Reading, Mass.)》1999,13(1):21-30
Recent welfare reforms in the United States shifted the emphasis from income maintenance to preparation for employment. Many families receiving welfare benefits have members with disabilities, which can complicate the process of transition into the workforce. Rehabilitation professionals have a unique set of skills, expertise and experiences which could enhance work transition outcomes for welfare recipients. This purpose of this article is to (a) familiarize rehabilitation professionals with welfare reform changes in the United States, (b) summarize the experiences of families affected by those changes who participated in a recent study, and (c) present a service delivery model to enhance parental power and flexibility based on rehabilitation principles. 相似文献
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Recent theoretical research has identified many ways how contracts can be used as rent‐seeking devices vis‐à‐vis third parties, but there is no empirical evidence on this issue so far. To test some basic qualitative properties of this literature, we develop a theoretical and empirical framework in the context of European professional soccer where (incumbent) teams and players sign binding contracts which, however, are frequently renegotiated when other teams (entrants) want to hire the player. Because they weaken entrants in renegotiations, long‐term contracts are useful rent‐seeking devices for the contracting parties. However, they reduce the likelihood of (mutually beneficial) transfers, which generates a trade‐off in the spirit of Aghion and Bolton (1987). Using a data set from the German “Bundesliga,” our model predictions are broadly confirmed. (JEL L14, J63, L40, L83) 相似文献
4.
Eberhard Knobloch 《Poiesis & praxis》2006,4(4):267-287
In a similar way as Adalbert Stifter’s narrator in the novel “Late summer” A. v. Humboldt combined exploration with research, fondness for travelling with striving for findings during his travel through South America. Humboldt clearly indicated his double aim: to report on the visited countries, to collect facts in order to improve physical geography. The treatise consists of five sections: object, route, methods, results, evaluation. 相似文献
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Monte Carlo simulations have become a mainstream technique for environmental and technical risk assessments. Because their results are dependent on the quality of the involved input distributions, it is important to identify distributions that are flexible enough to model all relevant data yet efficient enough to allow thousands of evaluations necessary in a typical simulation analysis. It has been shown in recent years that the S-distribution provides accurate representations for frequency data that are symmetric or skewed to either side. This flexibility makes the S-distribution an ideal candidate for Monte Carlo analyses. To use the distribution effectively, methods must be available for drawing S-distributed random numbers. Such a method is proposed here. It is shown that S-distributed random numbers can be efficiently generated from a simple algebraic formula whose coefficients are tabulated. The method is shown step by step and illustrated with a detailed example. (The tables are accessible in electronic form in the FTP parent directory at http:@www.musc.edu/voiteo/ftp/.) 相似文献
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Using data from the Health Survey for England and the English Longitudinal Study on Ageing, we estimate causal effects of schooling on health. Our study complements earlier studies exploiting two nationwide increases in British compulsory school leaving age in 1947 and 1973, respectively, by using biological stress markers as measures of health outcomes in addition to self-reported measures. We find a strong positive correlation between education and health, both self-rated and measured by blood fibrinogen and C-reactive protein levels. However, causal effects estimates based on compulsory schooling changes are ambiguous and remain statistically insignificant. 相似文献
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Currently, a number of contributions in mobility studies are looking for fruitful intersections with other ‘adjacent’ approaches . In this spirit, our theoretical paper argues to study one particular aspect: the intersection of social protection and mobilities. Currently, the provision of social services in the ‘West’ is strongly entrenched within nation-state logics, which assume that clients’ immobility is a precondition of service delivery and that national citizenship is the desirable conditionality of gaining social rights. To overcome such a wide-spread conflation of social security with state security, we introduce the heuristic concept ‘social protection’. It allows social security to be imagined beyond a state-centric perspective and avoids the pitfalls of either a citizenship or a migration approach by taking on a mobility perspective. Thus, for scholars anchored in mobility studies we propose how to develop a social security perspective in a progressive way. For readers from other areas, e.g. citizenship, migration or social policy, we will show how a mobility perspective enriched by a No Border approach can overcome a narrow Western, statist and static perspective on social security. Our goal is to conceptually open up what we call a ‘practical utopia’ research agenda, one that expands our political horizons for future and present socialities. 相似文献
9.
Katharine Nawaal Gratwick Anton Eberhard 《Development policy review : the journal of the Overseas Development Institute》2008,26(3):309-338
This study analyses the outcomes of African independent power projects (IPPs). Nearly 40 such projects have taken root to date, concentrated mainly in 8 countries. More balanced outcomes are perceived in North Africa than across sub‐Saharan Africa (SSA), for reasons linked to more attractive investment environments, more robust policy frameworks, fewer planning mishaps, abundant low‐cost fuel and secure fuel contracts as well as credit enhancements such as sovereign guarantees. With few exceptions, these elements were absent in SSA, where the role of development finance institutions and the strategic management of projects seem more important. 相似文献
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Eberhard Schenk 《Gruppendynamik und Organisationsberatung》2006,37(1):51-59
The article analyses various aspects of intercultural trainings from the perspective of the author’s experience in the field. A special emphasis lies on customer expectations from intercultural trainings. The paper concludes with thoughts describing possible future evolution directions of intercultural trainings. 相似文献