Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

How practices do not matter

Abstract

In his most recent work, Sangiovanni has retreated from his stronger claims about practice-dependence. Instead of claiming that principles of justice must be practice-dependent, he now expresses his claim in a modal form, arguing that there are several ways in which practices may matter. While merely mapping out the logical space of possibilities seems to look like a modest ambition, the conditions for when practices do matter according to Sangiovanni’s analysis are easily met in actuality. Consequently, if he is right, the practice-dependent approach covers a significant number of political theories. Sangiovanni’s main claim is that higher-level principles with an open texture, which include most higher-level principles in political philosophy, justify a practice-dependent method in the form of a mode of application called ‘mediated deduction,’ according to which a thoroughgoing investigation is made of the nature of the target practice. Our task in this paper is to reject this claim. This is done in two steps. First, we question Sangiovanni’s distinction between instrumental application and mediated deduction, arguing that it remains unclear whether it marks out two sufficiently distinct ‘modes’ to do any theoretical work. Second, we argue that the practice-dependent method is not required even if two such modes are established.     

From Aftermath to Peace: Reflections on a Photography of Peace

International Relations (IR) literature on the visual construction of the international does not systematically engage with the visualisation of peace. In this article, I make photographic discourses available to IR scholars interested in the visual construction of the international and invite IR scholars to substantialise these discourses based on their specialist knowledge on war, violence, conflict and peace. I engage with aftermath photography by challenging its almost exclusive focus on war and the legacy of violence. Furthermore, I engage with Fred Ritchin's notion of peace photography and Cynthia Weber's attempts at visualising peace. Problematising claims to universality, generalisability and causality, I emphasise that the relation between images and peace is episodic, not causal; that visions of peace, reflecting specific cultural configurations, cannot claim universal validity; and that peace photography has to move beyond aftermath photography's focus on the legacies of the past. Finally, I briefly look at the work of Joel Meyerowitz and Rineke Dijkstra, the one displaying aftermath as a beginning sustaining power, the other photographically accompanying a person's adaptation to a new, more peaceful environment.     

Violence in the city that belongs to no one: urban distinctiveness and interconnected insecurities in Nairobi (Kenya)

ABSTRACT

Rapid urbanisation in the global South has prompted attention to the causes and dynamics of urban violence. Yet, much research tends to either analyse urban violence without attention to the broader conflict complexes of which it forms a part, neglecting linkages between different forms of urban violence and between urban and rural dynamics, or conversely study violence in cities without acknowledging the particularities of the urban context. In this article, we conceptualise urban violence, theorise how it is shaped by urban dynamics and explore its manifestations in Nairobi, Kenya. We find that while Nairobi is not uniquely violent inside Kenya, violence takes on distinct urban forms given city-level processes, and also that urban violence has led to policies that increase securitisation and militarisation of the city. Our analysis thus improves knowledge of how criminal and political violence is shaped by and shapes the stability of developing cities.     

Gender,nationalism and the colonial jail: a study of women activists in Uttar Pradesh

Abstract

An important aspect of Indian women's political participation in the nationalist struggle against colonial rule was their imprisonment and confinement within the walls of the prison. To counter the difficulty and monotony of their prison existence, women developed strong solidarity networks which not only helped them to adjust to the temporary upheaval in their lives but also resulted in their becoming strong and determined individuals with a nationalist consciousness. These women resisted colonial rule through imprisonment and activities in the jail (such as writing poetry) just as they did through nationalist activities within the domestic sphere (such as spinning and weaving). The jail became a site where identities were continuously shaped and restructured. Feelings of pride, resentment, honour and humiliation were all experienced by women prisoners and were continuously sharpened. Women's entry into male dominated spaces dispelled the British stereotypes about Indian women as subordinate, weak and docile. Women were also aware that by endangering their womanhood on the streets and putting their bodies under risk of attack, they proved that they could share common experiences with their fellow men in the public sphere.     

Quality of democracy in unrecognized states: lessons from Northern Cyprus

Scholars have recently debated whether non-recognition is a blessing or a curse for democracy. Some suggest that lack of recognition forces political elites to democratize and acquire internal legitimacy to compensate for the lack of external legitimacy. Others suggest that democratization is used as a strategy by which to acquire international recognition. Still others claim that non-recognition obliges unrecognized states to rely on a patron state which, in turn, hinders the quality of democracy. To contribute to this discussion, we have conducted an in-depth case study. Focusing on democratic quality in Northern Cyprus from 2010 to 2016, it is observed that reliance on a patron state leads to dynamics of tutelage, in turn hindering the quality of democracy.