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This article contributes to the conceptualization of how policy models circulate by analysing the ‘frontier politics’ that occurs when a mobile policy meets resistance and constraint. We argue that advocates of harm reduction drug policy operate within a constrained political–institutional environment, but one that is not closed or predetermined. We make the argument in reference to struggles over harm reduction drug policy in Surrey, BC, a suburban municipality in Greater Vancouver. Thus, even at frontiers, policy change may occur, even if slowly, incrementally, or cautiously. In conclusion, we reconsider questions of constrained mobility, policy assemblages, and frontier politics to reflect on the character of, and possibilities for, policy change.  相似文献   
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TASER® weapons are conducted energy weapons (CEWs) that are frequently used by police departments around the world. CEWs can be deployed in two methods: drive stun application and probe deployment. This study aims to examine damages caused by TASER devices on fabrics and whether types of fabric material and TASER models could contribute to different damage features. Three types of white fabric were used, including 100% cotton, 100% polyester, and 65:35 polyester-cotton blend. Three models: TASER X26P, TASER X2, and TASER 7 were shot onto each type of fabric, with five repetitions each. Each damaged area on the fabric caused by a probe is a sample (n = 90) and was examined with a Keyence digital microscope. Images were captured by the Keyence microscope and measurements were recorded, including damage dimensions, fabric condition, evidence of burning, and extra findings. The presence of fused yarn ends was found to be statistically significant across the fabric types, and no damage features were found that may assist in the identification of TASER models. Other damage features including damage dimensions, discoloration, and fiber deformation were not found to be showing apparent differences according to statistical analysis. The conclusions made by this research should be used with caution due to the small sample size.  相似文献   
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Scholars have long theorized that constraining police officer discretion via organizational policy improves decision-making. Empirically, prior research shows that more restrictive lethal force policies result in a reduction in the number of police shootings and in racial disparity. Yet, researchers have never examined the impact of less lethal force policies in relation to the full spectrum of less lethal force tactics. In addressing this research void, we examine 3,340 use of force incidents from three US agencies, each varying in terms of policy direction and restrictiveness. The results consistently show that officers working within the most restrictive policy framework used force less readily than officers who operated within more permissive policy environments. Hence, police administrators wishing to reduce coercion should consider the potential effect that a more restrictive policy may have on such behavior.  相似文献   
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Abstract: Subaortic pseudoaneurysms are rare but can be a cause of sudden death in young individuals. This case report involves a 20‐year‐old Vietnamese male who died suddenly from rupture of a subaortic pseudoaneurysm with resultant hemopericardium with tamponade. He had a history of bicuspid aortic valve with recent but healed Staphylococcal endocarditis. A review of the literature reveals few similar cases and enlightens the association between aortic bicuspid valve, endocarditis, and subvalvular aortic aneurysm. The pathogenesis as well as recent studies that identified aneurysm predisposing genes in patients with bicuspid aortic valve will be discussed.  相似文献   
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As hundreds of thousands of refugees and migrants haphazardly crossed the strait between Turkey and the Greek island of Lesvos on their way to safety in Europe in 2015, thousands of citizens from all over Europe temporarily abandoned their day jobs to be of some sort of assistance for the refugees as they arrived on the beaches of Lesvos. We analyze the process and the relationships between the various stakeholders who were involved in the refugee crisis between April 2015 and January 2018, arguing that there is a need to find new ways of managing this type of spontaneous volunteerism without on the one hand strangling flexible and innovative volunteering initiatives, and on the other hand without compromising knowledge-based humanitarian responses.  相似文献   
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In this study, we attempt to even out some of the imbalance in suicide research caused by the fact that most such research has been conducted in the Western part of the world with the corresponding common disregard of the potential problems in generalizing findings to different cultural settings. Our point of departure was to look at suicidal behavior as communication and our main purpose was to investigate whether Qvortrup's semiotic four-factor model, which has been empirically supported in the West, would be applicable in an African context, exemplified by Uganda. Interviews of patients admitted to hospital following an act of nonfatal suicidal behavior were conducted in Uganda and Norway and the data were compared. The results showed that the four-factor structure found in the West was not applicable in the Ugandan context, but that two by two of these factors were collapsed into a two-factor model in Uganda: One factor regarding the external dialog and one factor regarding the internal dialog. Some differences and some similarities were found between Norway and Uganda when suicidal behavior was considered as a communicative act. The results are discussed in terms of the differences in the psychological characteristics of the suicidal persons in the two countries, as well as the different cultural settings of the study.  相似文献   
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