In the statistical interpretation of forensic glass evidence it is standard practice to make the assumption of homogeneity of the refractive index (RI) of the source glass, or of localized homogeneity. However, the work of Locke and Hayes showed that, for toughened windscreen glass, this assumption might not be true. This work is well cited, but there appears to have been little follow-on published research. Furthermore, the toughening process is something known to affect the refractive index, and is a process that float glass does not undergo. Float glass is a major component of casework in New Zealand and for that reason it would be interesting to know whether the findings of Locke and Hayes apply when dealing with float glass. In this paper we describe an experiment similar to that of Locke and Hayes, systematically examining the variation of RI in a pane of float window glass. It was found that, although there were no systematic differences in refractive index, there were observable differences across the pane. 相似文献
Analyses of the same NORC poll relied on by Hyman and Sheatsley and a 1994 poll for theTimes Mirror Center for The People & The Press show that sizable portions of the U.S. public were know-nothings on both occasions. OLS regressions on both polls show that, although there are slight differences, essentially the same factors affect knowledge of international politics in 1946 and 1994. At bottom, Americans tend to be uninformed about foreign affairs because they are inattentive to events abroad. If it is true, as some students of U.S. foreign policy claim, that public opinion has an important and growing impact on national security policy, widespread public ignorance recalls Lippmann's concern about the democratic malady. 相似文献
Abstract. This study analyses macroeconomic conditions and the electoral fortune of incumbents in 21 parliamentary Western countries between 1950 and 1997 in 266 national elections. Voters' assignment of responsibility for the state of the national economy is assumed to vary according to the context of the election. Building on previous research, the importance of the political context – clarity of responsibility and availability of alternatives – is analysed. The study also breaks new ground by introducing two new contexts of importance: volatility, seen from a systemic perspective, and the trend in turnout. The contextual hypothesis is confirmed. The universal economic effect as such is very weak indeed. However, given a favourable political and institutional environment (clear responsibility structure and availability of alternatives), an economic effect appears. Tests including the new contexts created on the basis of behavioural patterns in the electorate (system volatility and turnout trend) identify elections where the economic effects are even stronger. 相似文献
The increasing social visibility of Bondage/Domination, Discipline/submission and Sadism/Masochism (BDSM) within Western society has placed pressure on the criminal law to account for why consensual BDSM activities continue to be criminalised where they involve the infliction of even minor injuries on participants. With moralistic and paternalistic justifications for criminalisation falling out of favour, one key justification that is gaining traction within international commentary on BDSM is the “bogus BDSM argument”. The bogus BDSM argument contends that BDSM activities should be criminalised because otherwise false claims of BDSM will be used by defendants to excuse or minimise their criminal liability for nonconsensual abuse. This article refutes this argument by showing how it relies on premises that are unjustifiable, illogical and irrelevant. This article concludes that the decriminalisation of BDSM would not permit nonconsensual abuse so long as legal officials were equipped with sufficient knowledge about the norms and conventions of BDSM culture.
This paper examines the reliability of Structure from Motion (SfM) photogrammetry as a tool in the capture of forensic footwear marks. This is applicable to photogrammetry freeware DigTrace but is equally relevant to other SfM solutions. SfM simply requires a digital camera, a scale bar, and a selection of oblique photographs of the trace in question taken at the scene. The output is a digital three-dimensional point cloud of the surface and any plastic trace thereon. The first section of this paper examines the reliability of photogrammetry to capture the same data when repeatedly used on one impression, while the second part assesses the impact of varying cameras. Using cloud to cloud comparisons that measure the distance between two-point clouds, we assess the variability between models. The results highlight how little variability is evident and therefore speak to the accuracy and consistency of such techniques in the capture of three-dimensional traces. Using this method, 3D footwear impressions can, in many substrates, be collected with a repeatability of 97% with any variation between models less than ~0.5 mm. 相似文献
ABSTRACTThe eastern Democratic Republic of Congo (DRC) is impacted by a prolonged conflict and humanitarian crisis. Sexual and gender-based violence (SGBV) affects an estimated 39.7% of women and 23.6% of men in the region, and is associated with serious medical, psychological, and socio-economic outcomes for survivors and communities. IMA World Health, a faith-based non-profit organisation, implements a USAID-funded project, Ushindi, which is a collaborative effort with three national NGOs and one technical partner in response to SGBV in eastern DRC. The consortium provides a comprehensive package of services to SGBV survivors, focusing on medical, emotional, psychological, legal, and socio-economic needs. 相似文献