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Hilhorst D 《Disasters》2002,26(3):193-212
Quality enhancement of humanitarian assistance is far from a technical task. It is interwoven with debates on politics of principles and people are intensely committed to the various outcomes these debates might have. It is a field of strongly competing truths, each with their own rationale and appeal. The last few years have seen a rapid increase in discussions, policy paper and organisational initiatives regarding the quality of humanitarian assistance. This paper takes stock of the present initiatives and of the questions raised with regard to the quality of humanitarian assistance.  相似文献   
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Humanitarian governance is usually understood according to the classic, Dunantist paradigm that accords central importance to international humanitarian agencies. However, this is increasingly paralleled by ‘resilience humanitarianism’ that focuses, among other things, on including national actors in humanitarian governance. This article views humanitarian governance as emerging through interactions between authorities, implementing agencies and communities. It is based on interactive ethnography in five countries by Partners for Resilience (PfR). Using the Theory of Change (ToC) tool, it analyses the various interpretations and priorities of actors involved in humanitarian problems, solutions and programme governance. For example, PfR had a ‘software’ focus, aiming to unlock communities’ potential for resilience, whereas communities and authorities preferred to receive tangible ‘hardware’ support. The findings highlight the crucial role of local authorities in shaping humanitarian aid. This is especially pertinent in view of the international agenda to localise aid, which requires the understanding and support of national actors in order to responsibly protect the vulnerable.  相似文献   
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The results of lysimeter experiments conducted since 1991 dealing with the behavior of PAH in soil/plant systems demonstrate that the PAH pollution to cultivated plants may be caused by both atmospheric deposition and by the soil-to-plant transfer observed in contaminated sites. In the latter, a “direct contamination” of plant surfaces with PAH-loaded soil particles and the subsequent PAH turnover by desorption/adsorption processes is seen to dominate—at least for the most relevant PAHs toxic to humans, benzo(a)pyrene and dibenz(a,h)anthracene. Leafy vegetables growing close to the soil surface are therefore endangered most by a PAH contamination of the soil. The soil-to-plant transfer via “direct contamination” can be reduced to a high degree by covering the contaminated soil with different mulch materials. Systematic PAH transfer via root uptake could not generally be observed. From the reported results, a trigger value in the soil of 1 mg·kg?1 for benzo(a)pyrene is proposed to make a judgement on PAH contaminated soils with regard to the soil-to-plant transfer pathways. Soils with excessive concentrations of benzo(a)pyrene demand special attention when considering the recommendations for the growth and consumption of cultivated vegetables. The “soil”as well as the “deposition pathways” must be integrated into a complete risk assessment of locations with food plant production, especially in urban areas.  相似文献   
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Phosphorus (P), a plant macronutrient, must be adequately supplied for crop growth. In Germany, many soils are high in plant-available P; specifically in arable farming, P fertilizer application has been reduced or even omitted in the last decade. Therefore, it is important to understand how long these soils can support sustainable crop production, and what concentrations of soil P are required for it. We analyzed a 36-year long-term field experiment regarding the effects of different P application and liming rates on plant growth and soil P concentrations with a crop rotation of sugar beet, wheat, and barley. Sugar beet reacted to low soil P and low soil pH levels more sensitively than wheat, which was not significantly affected by the long-term omitted P application. All three crop species showed adequate growth at soil P levels lower than the currently recommended levels, if low soil pH was optimized by liming. The increase in efficacy of soil and fertilizer P by reduced P application rates therefore requires the adaptation of the soil pH to a soil type-specific optimal level.  相似文献   
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A highly selective and sensitive method based on gas chromatography-tandem mass spectrometry (GC-MS/MS) to identify and quantify persistent organochlorine pesticides, (18 compounds including primary compounds and metabolites), in animal internal organs (kidneys, liver, and brain) has been developed. Tandem mass spectrometric conditions were individually optimized for each target compound in Multiple Reaction Monitoring (MRM) mode to obtain maximum sensitivity. Prior to instrumental analysis, a sample preparation method based on matrix solid phase dispersion (MSPD) followed by acidic digestion with sulfuric acid to reduce matrix co-extractives was employed. Analyses of real samples were carried out on coypus (Myocastor coypus) from the autumn slaughter of 19 animals. In the analyzed samples, three of the target compounds, namely DDE-pp′ (DDT metabolite), HCB and lindane, were detected. Their concentration levels fell in the ranges of 0.003–0.007, 0.003–0.025, and 0.003–0.021 mg kg?1 (0.005, 0.010, and 0.010 mg kg?1 on average) in the case of DDE-pp′, HCB and lindane, respectively. Although low quantities of organochlorine pesticides do not pose an immediate danger to consumers' health, they should be of public health concern considering long-term, low-dose exposure.  相似文献   
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This article investigates how polar bears were established as icons of climate change in the popular science magazine National Geographic. In a multistep process, anthropomorphized depictions first established polar bears as subjects of identification. Then, polar bears were visually connected to the endangered Arctic. Finally, they emerged as ambassadors of a threatened ecosystem and icons of climate change. I highlight the wider political contexts of this process of iconization and the semiotic and cultural resources on which it draws, showing what kind of climate change communication the polar bear icon enables or inhibits. The icon lends itself to being deployed in visual communication strategies creating personal concern and public awareness for climate change. At the same time, the icon fosters an individualized, emotionalized, and localized account of climate change but does not make its wider causes visible.  相似文献   
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Hilhorst D 《Disasters》2005,29(4):351-369
This paper examines the present value of the Code of Conduct for the International Red Cross and Red Crescent Movement and Non-Governmental Organizations (NGOs) in Disaster Relief, in view of discussions on neutrality and the Western bias of the humanitarian aid system, and assesses how it can retain its relevance in future. The Code of Conduct was launched just after the Rwanda genocide of April 1994. A decade later, the crises in Afghanistan and Iraq have sparked renewed interest in humanitarian principles and in whether the code can serve as an instrument to define humanitarianism and guide humanitarian decision-making and coordination. More than 300 organisations have now subscribed to it. This paper is based on the findings of a survey of code signatories and the outcomes of a conference on the value and future of the code, held in The Hague, Netherlands, in September 2004 to mark its tenth anniversary.  相似文献   
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