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Sampling volumes in powder diffraction experiments.

“Recovering” the political

In many European cities, urban experimentation is increasingly preferred as a method for testing and disseminating innovations that might ignite a transformation toward more sustainable cities. By both academics and practitioners, these experiments tend to be approached as relatively neutral initiatives through which plural urban stakeholders willfully collaborate, while their success is seen as above all dependent on effective management. For this reason, the political nature of urban experiments, in the sense that they entangle different and often contending stakeholders in their innovation processes, remains relatively unarticulated in both practice and the academic literature. Building on the urban experimentation literature and political theory, this conceptual paper argues that the depoliticization of experimental initiatives is especially problematic for unleashing their transformative potential, which requires revealing the existing power-relations and biases keeping the status-quo in place and negotiability of radical alternatives. From this perspective, the paper sketches out four ideal-typical trajectories for experiments as related to their (de)politicization; optimization, blind leap, antagonistic conflict and transformation. Bringing insights from political theory to bear on the urban experimentation literature, we proceed to hypothesize the implications of our ideal-types for urban experiments’ transformative capacities. The paper closes by presenting a future research and policy agenda.

Experiments in empowerment

Empowerment has become a hegemonic moral horizon and key modality of governance across the global South and the global North. Whether in the realm of development or in that of welfare and urban governance, a broad range of actors, from local NGOs to social professionals and international donors, now envision the empowerment of local communities as a crucial condition and means for achieving good governance and social justice (Cruikshank 1999; Rose 1996). Anthropologists and development scholars – including ourselves – often find themselves ambivalently positioned in relation to such projects of empowerment. In this essay, we turn to the hesitancies and experimental practices of our research interlocuters in two urban settings saturated by a ‘will to empower’ (Cruikshank 1999). During ten months in the year 2017, Anick followed the everyday practices of family workers in three community centers and neighborhood associations in the northeast of Paris, who were tasked to help working-class and migrant-background parents regain confidence and agency vis-à-vis state institutions. Like the parents with whom they worked, many of these family workers hailed from the banlieue themselves and were of migrant backgrounds. Naomi worked with 15 male former gang leaders in Mombasa (Kenya) who sought to reform themselves to escape police violence. Naomi’s interlocutors were between 16 and 28 years old and worked closely with their friend Hasso during 2019 and 2022. In this period, Naomi conducted eight months of ethnographic fieldwork with these young men and with Hasso, during which she observed their weekly meetings and the individual lives of several group members, and she conducted life history interviews with five of them. These two cases thus figure actors who were differently positioned in relation to the will to empower.

The art of criticism

The Art of Criticism: A European Network for Experiments in Art CriticismTogether with partners from the field of art criticism, the Institute of Network Cultures has set up the project The Art of Criticism: a platform for research, experiments and policy making in the field of art criticism. Solid ground for reflection on art and culture in both niche and mainstream media is necessary for sound democratic societies, but financial and political developments across Europe have led to an increasingly unstable culture of critique. The project is aimed at strengthening such a culture of critique through facilitating and stimulating experiments in art criticism with the use of digital technology, and bringing together partners from many different European countries.

Nudging autonomous learning behavior: three field experiments.

Autonomous learning behavior is an important skill for students, but they often do not master it sufficiently. We investigated the potential of nudging as a teaching strategy in tertiary education to support three important autonomous learning behaviors: planning, preparing for class, and asking questions. Nudging is a strategy originating from behavioral economics used to influence behavior by changing the environment, and consists of altering the choice environment to steer human behavior. In this study, three nudges were designed by researchers in co-creation with teachers. A video booth to support planning behavior (n = 95), a checklist to support class preparation (n = 148), and a goal-setting nudge to encourage students to ask questions during class (n = 162) were tested in three field experiments in teachers’ classrooms with students in tertiary education in the Netherlands. A mixed-effects model approach revealed a positive effect of the goal-setting nudge on students’ grades and a marginal positive effect on the number of questions asked by students. Additionally, evidence for increased self-reported planning behavior was found in the video booth group—but no increase in deadlines met. No significant effects were found for the checklist. We conclude that, for some autonomous learning behaviors, primarily asking questions, nudging has potential as an easy, effective teaching strategy.

Using case specific experiments to evaluate fingermarks on knives given activity level propositions

Bayesian networks have shown to be a useful tool for the evaluation of forensic findings given activity level propositions. In this paper, we demonstrate how case specific experiments can be used to assign probabilities to the states of the nodes of a Bayesian network for the evaluation of fingermarks given activity level propositions. The transfer, persistence and recovery of fingermarks on knives is studied in experiments where a knife is either used to stab a victim or to cut food, representing the activities that were disputed in the case of the murder of Meredith Kercher. Two Bayesian networks are constructed, exploring the effect of different uses of the experimental data by assigning the probabilities based on the results of the experiments. The evaluation of the findings using the Bayesian networks demonstrates the potential for fingermarks in addressing activity level propositions.