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991.
Abstract: The demographic composition of the Canadian police services in major cities generally does not reflect the diversity of the communities they serve, especially with respect to the representation of visible minorities and aboriginal peoples. As many commissions and inquiries on race relations issues in policing have reported, this lack of representation may be a factor that is hindering the effectiveness of police work in major urban centres across Canada. Hence, many commentators have called for increased representation of visible minorities and aboriginal people in the police services through effective recruitment, selection and promotion strategies. In this article, through the use of both quantitative and qualitative research methodologies, the authors identify and assess the various staffing and promotional policies and practices of thirteen police services across Canada. Results suggest that there has been some progress in the representation of visible minorities and aboriginal people in policing over the fifteen‐year period of this study. However there is still room for considerable improvement in the policies, practices and culture of police services if they are to become more representative of the diversity of the communities they serve. Sommaire: La composition démographique des corps de police canadiens dans les grandes villes ne reflète généralement pas la diversité des communautés desservies, particulièrement en ce qui concerne la représentation des minorités visibles et des Autochtones. Tel que signalé par de nombreuses commissions et enquêtes sur les questions de relations inter‐raciales se rapportant à la police, ce manque de représentation est peut‐être un facteur qui nuit à l'efficacité du travail de la police dans les grands centres urbains du Canada. De nombreux observateurs ont donc préconisé une plus forte représentation des minorités visibles et des Autochtones au sein des corps de police grâce à de bonnes stratégies de recrutement, de sélection et de promotion. En suivant une méthodologie de recherche à la fois quantitative et qualitative, nous identifions et évaluons dans cet article les diverses politiques et pratiques de dotation et de promotion de treize corps policiers à travers le Canada. D'après les résultats, la représentation des minorités visibles et des Autochtones dans les corps de police aurait connu un certain progrès au cows des quinze années étudiées. Cependant, il reste encore du chemin à faire en ce qui concerne les politiques, les pratiques et la culture des corps de police pour mieux représenter la diversité des communautés qu'ils desservent.  相似文献   
992.
International Journal of Politics, Culture, and Society - Although the term ‘cultural diplomacy’ is familiar, it was infrequently used before the end of the Cold War. In fact,...  相似文献   
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Political Behavior - Concurrent housing and opioid crises have increased exposure to street-crime, homelessness and addiction in American cities. What are the political consequences of this...  相似文献   
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The need to detect fentanyl and its analogs in the field is an important capability to help prevent unintentional exposure or overdose on these substances, which may result in death. Many portable methods historically used in the field by first responders and other field users to detect and identify other chemical substances, such as hazardous materials, have been applied to the detection and identification of these synthetic opioids. This paper describes field portable spectroscopic methods used for the detection and identification of fentanyl and its analogs. The methods described are automated colorimetric tests including lateral flow assays; vibrational spectroscopy (mid-infrared and Raman); gas chromatography–mass spectrometry; ion mobility spectrometry, and high-pressure mass spectrometry. In each case the background and key details of these technologies are outlined, followed by a discussion of the application of the technology in the field. Attention is paid to the analysis of complex mixtures and limits of detection, including the required spectral databases and algorithms used to interrogate these types of samples. There is also an emphasis on providing actionable information to the (likely) non-scientist operators of these instruments in the field.  相似文献   
996.
Isotopic signatures used in the georeferencing of human remains are largely fixed by spatially distinct geologic and environmental processes. However, location-dependent temporal changes in these isotope ratios should also be considered when determining an individual’s provenance and/or trajectory. Distributions of the relevant isotopes can be impacted by predictable external factors such as climate change, delocalisation of food and water sources and changes in sources and uses of metals. Using Multi-Collector Inductively-Coupled Plasma Mass Spectrometer (MC-ICP-MS) analyses of 206Pb/207Pb in tooth enamel and dentin from a population of 21 ± 1-year-old individuals born circa 1984 and isotope ratio mass spectrometry (IRMS) of δ18O in their enamel, we examined the expected influence of some of these factors. The resulting adjustments to the geographic distribution of isotope ratios (isoscapes) found in tooth enamel and dentin may contain additional useful information for forensic identification, but the shifts in values can also impact the uncertainty and usefulness of identifications if they are not taken into account.

KEY POINTS

  • Isoscapes of 206Pb/207Pb and δ18O used for geolocation are not static.
  • Within a few years, the enamel and dentin of a person may exhibit measurable differences in 206Pb/207Pb even without changing locations.
  • Changes in climatic patterns tied to rising temperatures are more significant than the direct effect of increasing temperature on δ18O fixed in tooth bioapatite.
  • Third molar (M3) enamel mineralisation includes material incorporated from before formal amelogenesis takes place.
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Social Justice Research - Scholars warn that neoliberalism erodes investment in the well-being of others by prizing the self-interested individual. To empirically investigate this claim, we...  相似文献   
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