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Swidden has historically been one of the most widespread land uses in upland Southeast Asia. In recent decades, swidden systems across the region have undergone rapid transformation. While most analyses focus on swidden as a livelihood practice, we direct attention to the political nature of swidden. Drawing on qualitative fieldwork and household surveys from two villages in East Kalimantan Province, Indonesia, we examine the politics of swidden along two key dimensions. First, at the household level, we describe swidden as a land control strategy. We identify territorialization and speculation as drivers of ‘contentious land change’ in swidden systems under pressure from expanding plantations and mines. Second, at the village and district levels, we examine the politics of swidden within new forest governance arrangements. Control of swidden has provided a focus for multi-stakeholder forest governance, but with ambivalent effects, developing village land management and livelihoods at a cost of temporary increases in swidden clearing and with minimal impact on deforestation for industrial land uses. Our analysis suggests forest governance efforts will be ineffective in eliminating contentious land change or reducing district-level deforestation until they address plantation and mining expansion as the dominant direct and indirect drivers of forest conversion.  相似文献   
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This report describes the analytical characterization of 16 hashish samples confiscated in Italy. The samples were solvent extracted and subjected to GC-MS analysis for the separation and quantitation of the main cannabinoids. One of the analyzed samples was shown to contain extraneous compounds, identified as resin acids characteristic of colophony (rosin). Colophony is a natural resinous product obtained from various species of pine, spruce, and larch; it is a skin sensitizer and its fumes produce nonspecific irritation that can cause bronchial asthma. Similar adulterations of hashish have not been reported previously; therefore, at present there is no information about the effects of smoking colophony or a combination of hashish and colophony. It is presumed, however, that such a combination would be highly detrimental to the health of the user.  相似文献   
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There is a growing recognition of the need to change the way research is conducted in management. In addition, there is an increasing belief that the philosophy of science can be applied to the research methods and standards normally employed in the study of organizations. Several recent contributions to the literature of management have indicated what must be done. Yet in many key respects, little progress has been made. This paper (1) considers the current status of theory development in management, (2) examines the approach offered by the natural sciences, (3) discusses the obstacles to implementation of the pure sciences approach, and (4) suggests what can be done to enhance the exposition and construction of theories.  相似文献   
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