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141.
Mark Shirk 《Terrorism and Political Violence》2017,29(4):656-673
Violence characterized by similar actions, actor motivations, group structures, or level of damage still poses qualitatively distinct genera of threats to states. For instance, “terrorism” can threaten a particular state, be used by a state, or threaten the entire state system. Building on the threat construction literature, this study argues that threat is best understood through narratives on the relationship between violence and the boundary-producing practices that construct the state. Four ideal-typical basic narratives on this relationship are produced—entrant, resource, revisionist, and criminal. Each narrative is then demonstrated by looking at how it was used in a historical case of piracy. The action (piracy as raiding at sea) is held constant while the threat in each varies with the narrative. Understanding how threat is narratively constructed can help us to understand particular historical episodes of violence and state responses to them. 相似文献
142.
Mark Webber 《英国政治学与国际关系杂志》2009,11(1):46-63
During the Bush years, NATO exhibited in stark form two trends which have long characterised its development: periodic exposure to crisis and division, and a subordination to American leadership. Despite signs of American indifference towards the alliance, talk of the Bush administration levering a break with NATO was always overstated, particularly so during its second term of office. Views of NATO after 2004 were shaped by Afghanistan giving rise, in fact, to a return to the alliance on America's part. NATO remains important to Bush's successor but on terms which are as demanding as those of his predecessors. NATO, in other words, is valued in so far as it accords with current US foreign policy priorities. The safest assumption in this regard is that Obama will continue to favour the trend towards a global NATO pursued by the Bush administration. However, retreat (or defeat) in Afghanistan could hasten a contrary trend towards a consolidating NATO with a renewed concentration on the wider Europe. 相似文献
143.
In 2010, this journal published an early exposition of inclusive masculinity theory. Since then, the theory has been widely adopted within both the sport and masculinities literature. Furthermore, a large number of other scholars not using the theory have also documented and labelled new masculinity types. There has also been refinement of Inclusive Masculinity Theory, alongside theoretical critiques. In this article, we provide an overview of the genesis of the theory and its refinement, before considering and responding to published and unpublished critiques of the theory. We then suggest future directions for research. 相似文献
144.
African agriculture is often dominated by smallholder farms composed of multiple plots. In policy circles it is often assumed that fragmentation coupled with small farm size is an impediment to increasing yields and thus decreasing poverty and food insecurity. There also exists an influential literature that explores the inverse relationship between farm size and yield. While there are many studies internationally, few have been conducted in Africa. Using an Ethiopian national survey, we explore the relationship between yield, farm size and fragmentation. We find an inverse relationship between farm size and yield, and a positive association between yield and land fragmentation. 相似文献
145.
T Karlsmark H K Thomsen L Danielsen O Aalund O Nielsen K G Nielsen I K Genefke 《Forensic science international》1988,39(2):175-188
In order to establish pathological evidence in dermis for distinguishing between sequelae of electrical torture and those of other superficial injuries, the skin of eleven fully anaesthetized Danish Landrace pigs have been exposed to heat and electrical energy from either 50 Hz alternating current (a.c.) or direct current (d.c.) via 12 mm large contact knobs or via a pointed 0.5 mm large electrode (only 50 Hz a.c.). The lesions have been examined from 1 to 126 days after the injury. While heat lesions exposed to energy lower than 60 joule only gave minor changes, heat lesions exposed to more than 60 joule showed changes in both collagen fibres (basophilic or eosinophilic fibres without any birefringence or coarse cross-striation in polarized light, respectively) and dermal cells (granular cytoplasm). Areas exposed to 50 Hz a.c. via 0.5 mm. electrode showed basophilic collagen fibres and in a few biopsies on day 7 calcium salts on collagen fibres. Using 12 mm large electrodes the changes were minor, but basophilic and eosinophilic collagen fibres with no birefringence or with fine/coarse cross-striation respectively were seen. Even cells with 'vesicular nuclei' were seen on day 1 and 2 after the injury. The changes in the anode area showed resemblance to that of heat lesions (basophilic collagen fibres). Eosinophilic collagen fibres with fine densely spaced cross-striation in polarized light and 'vesicular nuclei' as well as collagen fibres with calcium salts were seen in the cathode lesions. It is concluded that the dermal changes in the cathode area are specific for electrical injury from day 1 to 14. However, earlier studies have demonstrated dermal changes specific for electrical injury at day 0 and the presence of calcified collagen fibres up to 2 months after injury. The dermal changes in anode lesions were non specific and could not be differentiated from those found in heat lesions. Alternating current lesions (50 Hz) were specific from day 1 to day 7, when the pointed electrode was used, but only in a few days when the energy was transferred via the 12-mm electrodes. 相似文献
146.
The polymorphism of the human vitamin D binding protein (Gc system) was investigated in a total of 149 sera from unrelated healthy Egyptians residing in Tanta City, Gharbiya Governorate, Nile Delta of Egypt, using isoelectric focusing (IEF) in thin-layer polyacrylamide gel followed by immunoblotting. The estimated gene frequencies were Gc1s = 0.540, Gc1f = 0.242 and Gc2 = 0.218. 相似文献
147.
A method has been developed for the rapid extraction of cocaine and benzoylecgonine from post-mortem blood and urine samples. Solid phase columns containing C8 packing material gave clean, emulsion free extracts from body fluids. The total time for each extraction was approx. 10 min and the system has the capacity for the simultaneous extraction of up to 10 samples. Urine can be extracted directly, blood samples were sonicated before extraction to allow for their easy passage through the columns. The method gave excellent recoveries of cocaine (98-100%) from spiked samples at concentrations of between 50 ng/ml and 10 micrograms/ml. Analysis of the extracts was by high performance liquid chromatography (HPLC). 相似文献
148.
This paper describes a simplified approach to calculating the Bayesian likelihood ratio for the case where two DNA single locus profiles are to be compared. It explains how the calculation allows for band shift and also for the variation in precision with molecular weight. A simple basic theory section explains the principles of the analysis but more detailed explanations are given in an advanced theory section. Experiments on substantial data collections are described which demonstrate the robustness of the method. 相似文献
149.
A small experiment is described which uses databases of Afro-Caribbeans and Caucasians to establish the quality of information that might be given to an investigator about the ethnic group of the donor of an unknown crime stain. The results show that the technique can provide qualified indications, but categoric conclusions are not, in general, feasible. An appraisal is given of the technique within the operational context. 相似文献
150.
Marcia M. Croft Maria I. Marshall Martins Odendo Christine Ndinya Naman N. Ondego Pamela Obura 《发展研究杂志》2018,54(4):758-775
Indigenous vegetables play an important role in Kenyan food security, but production is limited by poor seed quality. Traditionally, seeds have been traded through informal networks, but a new formal seed sector is emerging. This study assessed the relative potential for formal or informal seed systems to meet the need for high-quality indigenous vegetable seed. By evaluating determinants of farmers’ seed purchasing behaviour, we conclude that informal seed systems have greater potential to meet this need and should be strengthened. This study suggests that policy-makers should use context-specific data to guide decisions on seed policy. 相似文献