Empirical Evaluation of the Reliability of Photogrammetry Software in the Recovery of Three-Dimensional Footwear Impressions

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.     

Paradigmatic policy change or unintended subordination of rural autonomy: the case of source water protection in Ontario,Canada

Policy Sciences - In May 2000, E. coli originating from nearby agricultural lands contaminated the municipal water supply of Walkerton, Ontario. As a result, over two thousand people became...     

A Cross-National Study Examining the Role of Executive Function and Emotion Regulation in the Relationship between Children’s Television Exposure and Consumer Behavior

Across industrialized nations, children and teens are a highly prized target for the advertising industry because young people have a tremendous influence on family purchases; however, media scholars have long suggested that young people are a fundamentally vulnerable audience because they lack the necessary developmental competencies to adequately process and protect themselves from advertising communications. Yet, the precise developmental mechanisms have not been clearly articulated nor is there a clear understanding of how these competencies extend across childhood contexts (e.g., developmental phase, cultures). The current study seeks to lend clarity to this matter by looking at the potential influence that children’s executive function and emotion regulation have on the relationship between television exposure (as a proxy of exposure to advertising messages and other consumption-oriented media content) and consumer behavior across a broad range of ages from two wealthy industrialized countries. Mothers of young elementary school children (5–8 years) and early adolescents (9–12 years) in the Netherlands (N?=?333, 51.7% female child) and the United States of America (N?=?810, 49.6% female child) took part in an online survey to report on their child’s cognitive/affective development, media use, and consumer behavior (i.e., purchase requests, purchase related conflict). The results showed that across ages, executive function via attentional shifting moderated the link between purchase requests and purchase conflict, whereas positively valenced emotion regulation moderated the same relationship but only for older children. Lastly, the findings revealed that while there are differences in reported behavior among children in these two countries, the developmental processes tend to work in the same manner. The discussion focuses on what these findings mean for children’s consumer development as they approach adolescence and how researchers and child advocates should take these developmental factors into account when considering children’s potential vulnerability as consumers.

     

‘Municipal entrepreneurs’: local politicians and the delivery of urban sanitation in Kumasi,Ghana

ABSTRACT

The municipal government in Kumasi has been the focus of numerous reforms to improve local policymaking and delivery of public goods to the city’s dwellers. Yet, the reforms have spurred strategic reactions from local actors who exploit institutional ambiguities to pursue their interests. This paper draws on empirical data on the city’s sanitation franchising to show how ordinary local politicians exploit reform ambiguities; they establish themselves as local entrepreneurs to deliver urban sanitation services and also contest the municipal executive. The manipulations do not only undermine reforms proffered by the regime and external actors but the municipal government’s promise to deliver efficient public services also becomes problematic. Management of urban sanitation is a contested arena between bureaucrats and political actors all vying for their interests. The sanitation reforms are eventually subsumed under the ‘local politics as usual’ logic.     

What Factors Influence the Intentions of Individuals to Engage in Tax Evasion? Evidence from Ghana

ABSTRACT

This study examines the views of students on the ethics of tax evasion, their intentions to evade tax, and investigates the factors that predict such intentions. Relying on the extended version of the Theory of Planned Behaviour, the study investigated whether attitudes, subjective norms, perceived behavioural control, and moral obligation may be good predictors of the intention to evade tax. Data were gathered from 662 students of University of Ghana Business School using questionnaires. The hypotheses were tested using the structural equation modelling technique. Results indicate that the intention to evade tax among the students is low and most respondents generally perceive tax evasion as an unethical practice. The results also demonstrate that attitude, subjective norms and moral obligations have important implications on the intention to evade tax. The evidence we provide should be useful to governments and tax agencies interested in promoting responsible tax compliance behaviour among individual taxpayers.     

A critique of some recent victim-centered theories of nonconsequentialism

Law and Philosophy - Recently, Gerhard Øverland and Alec Walen have developed novel and interesting theories of nonconsequentialism. Unlike other nonconsequentialist theories such as the...     

Bringing the Falklands/Malvinas Home: Young People's Everyday Engagements with Geopolitics in Domestic Space

This paper draws on recent research examining feminist and everyday geopolitics to focus on the relatively neglected domestic sphere as a space where geopolitical events like the Falklands/Malvinas war are learnt, (re)produced, remembered and contested by young people. It presents qualitative data drawn from interviews with young people from Argentina (Río Gallegos) and the Falkland Islands (Stanley), locations with intimate connections to the 1982 war. It argues that research in domestic environments that engages the familial relations, objects and practices that embody geopolitical pasts can help make sense of how young people (are able to) express geopolitical agency.     

Human Services Providers’ Perspectives on Refugee Resettlement in the United States before and after the 2016 Presidential Election

Abstract

The United States has historically accepted and resettled refugees by opening its doors to those fleeing violence, armed conflict, or persecution around the world. However, the degree of receptivity toward refugee resettlement has vacillated over time. This study examines the challenges and opportunities that Refugee Resettlement Agencies (RRAs) experienced prior to and after the 2016?U.S. Presidential election. The findings presented in this paper, based on focus groups with the RRA staff, revealed that there is a greater need for understanding the refugee resettlement process and how changing immigration policies impact state-federal funding.