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Reconciling environmental objectives for land use with the need to produce more food is a prominent concern of scientific and policy discourses on sustainable agriculture. The idea of sustainable intensification has emerged as one prominent framing of this challenge. In this paper we elaborate this idea from an ecosystem services perspective to natural resource management, with particular reference to developments in the UK. The paper considers the general origins and attributes of the perspective and how the challenge of sustainable intensification would be conceptualized and approached through it. While efforts to link analysis of ecosystem services to policy development and delivery in the UK are revealed as consistent with prevailing, and often long standing, approaches to sustainable agriculture, the marketization of environmental assets is highlighted as a distinguishing feature of current policy applications. The character and limitations of this facet of the ecosystem services agenda are discussed. The need to animate ecological issues of sustainable intensification through frames of reference other than those of economic valuation is emphasized.  相似文献   
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In every country in the world parties to private litigation are subject to a predetermined fee shifting regime. While there are no institutionalized opt-out provisions so far, we demonstrate that such provisions could improve welfare. We argue that private negotiations are not a viable alternative to such opt-out provisions. We derive the conditions under which welfare improvements occur and suggest an applicable design for such an opt-out scheme.  相似文献   
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The ongoing conflict in the war on terrorism puts two emblematic modes of violence into sharp relief: the drone, as an ostensibly rational, clinical and measured weapon of war, and suicide bombings, frequently portrayed as the horrid deeds of fanatics. In this article, I seek to challenge this juxtaposition and instead suggest that both modalities of killing are part of the same technologically-mediated ecology of violence. To do this, I examine the material-semiotic assemblage of the drone and of the suicide bomber, paying attention to the technological production of each mode of violence, as well as the narratives that render each figure intelligible in the war on terrorism. I argue that the strongly divergent narratives found in Western discourse serve as a politically expedient sense–making device, whereby suicide bombing is pathologised, thereby justifying ever more intrusive violent acts with seemingly rational technologies like the drone. Rather than “solving” the problem of terrorism, this creates counter-productive, or iatrogenic, effects, in which technological mediation escalates rather than diminishes cycles of violence. By way of response, I suggest that a better understanding of the relational nature of violence in the war on terrorism might be gained by reading the two not as antithetical figures, but instead as operating in the same technological key.  相似文献   
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Evidence suggests sanitation development is more effective when women are involved. The purpose of this study was to provide women with an opportunity to share their perspectives and solutions to sanitation in informal settlements. Data were collected through 55 in-depth interviews with women in Mathare Valley informal settlement in Nairobi, Kenya. The most common solution was to build more toilets, but women had a variety of suggestions – including gender-specific solutions. Findings from this study suggest that it is imperative to start addressing women-specific burdens associated with sanitation in informal settlements.  相似文献   
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