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51.
We use a simulation model called ‘SISCO’ to examine the effects in supply chains of stochastic lead times and of information sharing and quality of that information in a periodic order‐up‐to level inventory system. We test the accuracy of the simulation by verifying the results in Chen et al. (2000a) and Dejonckheere et al. (2004). We find that lead‐time variability exacerbates variance amplification in a supply chain, and that information sharing and information quality are highly significant. For example, using the assumptions in Chen et al. (2000a) and Dejonckheere et al. (2004), we find in a numerical experiment of a customer‐retailer‐wholesaler‐distributor‐factory supply chain that variance amplification is attenuated by nearly 50 percent at the factory due to information sharing. Other assumptions we make are based on interviews or conversations with managers at large supply chains.  相似文献   
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Rural communities in many parts of the tropics are dependent of forests for their livelihoods and for environmental services. Forest resources in the tropics have declined rapidly over the past century and therefore many developing countries in the tropics have reforestation programs. Although reforestation is a long-term process with long-term benefits, existing evaluations of the success of these programs tends to focus on short-term establishment success indicators. This paper presents a review of reforestation assessment that highlights the need to not only consider short-term establishment success, but also longer-term growth and maturation success, environmental success and socio-economic success. In addition, we argue that reforestation assessment should not be based on success indicators alone, but should incorporate the drivers of success, which encompasses an array of biophysical, socio-economic, institutional and project characteristics. This is needed in order to understand the reasons why reforestation projects succeed or fail and therefore to design more successful projects in future. The paper presents a conceptual model for reforestation success assessment that links key groups of success indicators and drivers. This conceptual model provides the basis for a more comprehensive evaluation of reforestation success and the basis for the development of predictive systems-based assessment models. These models will be needed to better guide reforestation project planning and policy design and therefore assist rural communities in tropical developing countries to alleviate poverty and achieve a better quality of life.  相似文献   
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This study sought to discover how stewardship strategies and involvement impact organization-public relationship (OPR) outcomes for higher education donors at three different levels of giving. The first study to compare annual donors, major gift donors with one endowment, and major gift donors with two or more endowments suggests that each donor type experiences stewardship and OPR differently. Specifically, as donors deepen their giving relationship with an institution, they experience stewardship and OPR outcomes more positively. Additionally, involvement only slightly contributes to this relationship between stewardship and OPR outcomes. Findings also reveal that stewardship may include only three strategies, including a new concept called respect. Implications for fundraising practice and theory are made.  相似文献   
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The Internet and, more recently, social media seem to promise the ability for non-state actors to more easily participate in domestic and international politics. ‘Global civil society’ can become ever more global with the help of these ‘new media’. This article uses the Caribbean Community (CARICOM) case to question the capacity of information and communication technologies (ICTs) to contribute positively to the insertion of developing country civil society organisations (CSOs) in a global civil society. Notwithstanding the possibilities that ICTs may open, Caribbean CSOs are not yet able to tap into these potentials effectively. Caribbean CSOs face resource constraints that ICTs alone may be unable to solve. However, the most significant hurdle that Caribbean CSOs face to elevating their work within global civil society is their relative powerlessness within global civil society. The article contends that this limited ability to be of influence is historically contingent and illustrates that hierarchies exist within global civil society that mirror asymmetries of power inherent in the state system.  相似文献   
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Seven focus groups at a university campus were formed to identify college men's health concerns, barriers to seeking help, and recommendations to help college men adopt healthier lifestyles. Content analysis was used to identify and organize primary patterns in the focus-group data. Results of the study revealed that the college men were aware that they had important health needs but took little action to address them. The participants identified both physical and emotional health concerns. Alcohol and substance abuse were rated as the most important issues for men. The greatest barrier to seeking services was the men's socialization to be independent and conceal vulnerability. The most frequently mentioned suggestions for helping men adopt healthier lifestyles were offering health classes, providing health information call-in service, and developing a men's center. Implications of the results are discussed.  相似文献   
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Several legislative proposals have been introduced in the State of Washington which would alter sentencing procedures for adults convicted of felonies. A major policy concern is the degree to which such new legislation would impact population levels in an already overcrowded prison system. The Sentencing Alternatives Impact Simulation Project developed a series of computer simulation programs to model the sentencing proposals. Results of the simulations were made available to the Legislature and to planners for Adult Corrections. This article describes the major model developed, the data required to run it, and the results obtained from it under a variety of hypothetical conditions. It includes a discussion of the level of utilization made of the results, and some comments on the requirements for maximizing utilization in future simulation projects.  相似文献   
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