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241.
Laura M. Argys Daniel I. Rees Dominic J. Brewer 《Journal of policy analysis and management》1996,15(4):623-645
Schools across the country are ending the practice of grouping students based on ability, in part, because of research indicating that tracking hurts low-ability students without helping students of other ability levels. Using a nationally representative survey conducted by the National Center for Education Statistics, (NCES) we reexamine the impact of tracking on high school student achievement through the estimation of a standard education production function. This approach allows us to control for the possibility that track is correlated with factors such as class size and teacher education. In addition, we address the possibility that there are unobserved student or school characteristics that affect both achievement and track placement. Our results indicate that abolishing tracking in America's schools would have a large positive impact on achievement for students currently in the lower tracks, but that this increase in achievement would come at the expense of students in upper-track classes. 相似文献
242.
With deeper integration into the global economy and expanded penetration by multinational firms and other nonChinese actors
following accession to the WTO, skills in bureaucratic entrepreneurship are not likely to be sufficient by themselves to bring
about China’s sustainable development. In today’s interdependent and highly competitive trade, economic-cooperation, and resource-limited
environment, sustainable development requires that subnational managers also possess transnational competence in collaborating
with, negotiating with, and transforming foreign counterparts. However, survey research among Chinese executives based in
Shanghai revealed that only a small proportion of the reporting current and future managers recognized the growing importance
for China of an interculturally competent workforce. Without increased attention to enhancing the transnational competence
of government and state-enterprise managers, peaceful and ecologically sound development will be difficult to sustain given
the demands of multinational production chains, global resource constraints, and the challenges involved in managing transnational
relations in the interest of China’s long-term economic progress.
Peter H. Koehn is Professor of Political Science, The University of Montana’s Distinguished Scholar for 2005, and a Fulbright New Century Scholar. His co-edited books include The Expanding Roles of Chinese Americans in U.S.-China Relations: Transnational Networks and Trans-Pacific Interactions (M.E. Sharpe, 2002) and The Outlook for U.S. - China Relations Following the 1997-1998 Summits: Chinese and American Perspectives on Security, Trade, and Cultural Exchange (The Chinese University Press, 1999). He currently is involved in co-authoring a book with James N. Rosenau on Transnational Competence and the Helping Professions: Equipping Higher Education for Horizon-rising Challenges. During fall semester 2007, he will be Faculty Fellow in residence in the International Division of the National Association of State Universities and Land Grant Colleges in Washington, D.C. A full CV and list of publications can be found at . 相似文献
Peter H. KoehnEmail: |
Peter H. Koehn is Professor of Political Science, The University of Montana’s Distinguished Scholar for 2005, and a Fulbright New Century Scholar. His co-edited books include The Expanding Roles of Chinese Americans in U.S.-China Relations: Transnational Networks and Trans-Pacific Interactions (M.E. Sharpe, 2002) and The Outlook for U.S. - China Relations Following the 1997-1998 Summits: Chinese and American Perspectives on Security, Trade, and Cultural Exchange (The Chinese University Press, 1999). He currently is involved in co-authoring a book with James N. Rosenau on Transnational Competence and the Helping Professions: Equipping Higher Education for Horizon-rising Challenges. During fall semester 2007, he will be Faculty Fellow in residence in the International Division of the National Association of State Universities and Land Grant Colleges in Washington, D.C. A full CV and list of publications can be found at . 相似文献
243.
The treatment processes associated with reduced suicidal ideation have received little research attention. This study evaluates the influence on suicidal ideation of theory-based intrapsychic processes: maladaptive cognition and defensive style. Thirty-three community mental health patients completed questionnaires at two time points. Decreases in automatic thoughts were a strong correlate of decreased suicidal ideation, and decreases in immature defenses were a moderate strength correlate. These relationships remained significant even when controlling for initial level of depression. The theorized mechanisms of cognitive-behavioral and psychodynamic therapy had the expected effects on suicidal ideation. The strong association of decreased maladaptive cognitions with decreased suicidal ideation supports further development of cognitive-behavioral suicide interventions and clinical use of cognitive interventions. Psychodynamic processes in suicidal ideation and behavior warrant further exploration. 相似文献
244.
World history has known areas of relative isolation and areas of high intensity of cultural interaction. The Mediterranean
Sea, the Silk Road or the Straits of Malacca can be cited as such crucial contact zones. Within these areas, centres sprung
up that served as interfaces between cultures and societies. These “hubs” as we would like to call them, emerged at various
points throughout the contact zones, rose to prominence and submerged into oblivion due to a variety of natural calamities
or political fortunes. This paper assesses the rise and fall of trade and knowledge hubs along the Straits of Malacca from
before colonialisation until today. Historical hubs of maritime trade and religiosity today increasingly establish themselves
as educational and knowledge hubs. This leads us to speak of the Straits of Malacca as a chain of—not pearls—but knowledge
hubs with Singapore as the knowledge hub in the region shining the brightest of all, as the data suggest. We aim to conceptually
grasp this development by suggesting a model or at least a hypothesis about the rise and movement of knowledge hubs in general.
相似文献
H.-D. Evers (Corresponding author)Email: |
A.-K. HornidgeEmail: |
245.
South Africa, once a pariah state as a result of the apartheid regime destabilization policies in Southern Africa, became a full fledge democratic state following the victory of the African National Congress (ANC) in the first and all‐inclusive democratic elections of 1994. The ANC's vision for Southern Africa was to be routed on the notion of curbing the imbalances of the past (pre‐1994), which had cost the Southern African region great economic loss. Here, one of the many fundamentals that were to drive the ANC's foreign policy doctrine was that of conflict resolution for a more stable and prosperous Africa particularly Southern Africa. Conflict resolution was viewed as a pivotal element for the new democratic government in order to stimulate beneficial relations with other African states post the apartheid era. In light of the above, and using a qualitative method approach, this paper draws a nuanced appraisal and examines the role of South Africa's peacekeeping and mediation initiatives in the Democratic Republic of Congo (DRC) and Lesotho post‐1994. In conclusion, South Africa has been able to utilize its regional hegemonic stance to ensure regional security while ensuring economic stability at home. 相似文献
246.
247.
The U.S. electric power sector has experienced a substantial shift of the generation mix since the turn of the century, moving from heavy reliance on coal‐powered generation to one drawing more from natural gas and, more recently, renewables. This transition has been forged by a mix of macroeconomic factors (recession and recovery); technological breakthroughs (horizontal drilling coupled with hydraulic fracturing; improvements in natural gas plant efficiency); clean energy policies at federal, state, and local levels of government; and private sector demands for carbon‐free energy sources. These factors have combined to reduce carbon emissions from electric power generation substantially this century. In this article we examine the extent of this transition, its causes, as well as the distinct American institutional factors steering it, including energy and environmental federalism, electoral politics, and the political economy of clean energy policy enactment and resistance. 相似文献
248.
Mastrotheodoros Stefanos Van der Graaff Jolien Deković Maja Meeus Wim H. J. Branje Susan 《Journal of youth and adolescence》2020,49(1):119-135
Journal of Youth and Adolescence - Parent–adolescent conflict can be intense, yet parents and adolescents do not always agree on the intensity of conflict. Conflict intensity tends to change... 相似文献
249.
Law and Critique - In 2016, the international community, in reaction to the growing number of ‘tragedies’ occurring as people attempted to move across borders, met to discuss large... 相似文献
250.
Law and Critique - The Anthropocene prompts renewed critical reflection on some of the central tenets of modern thought including narratives of ‘progress’, the privileging of the nation... 相似文献