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"Bosi, Lorenzo"
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The consequences of social movements
\"Social movements have attracted much attention in recent years, both from scholars and among the wider public. This book examines the consequences of social movements, covering such issues as the impact of social movements on the life course of participants and the population in general, on political elites and markets, and on political parties and processes of social movement institutionalization. The volume makes a significant contribution to research on social movement outcomes in three ways: theoretically, by showing the importance of hitherto undervalued topics in the study of social movements outcomes; methodologically, by expanding the scientific boundaries of this research field through an interdisciplinary approach and new methods of analysis; and empirically, by providing new evidence about social movement outcomes from Europe and the United States\"-- Provided by publisher.
Book
Direct Social Actions and Economic Crises: The Relationship between Forms of Action and Socio-Economic Context in Italy
This article analyses continuities and discontinuities across time in Italy in the use of direct social actions, defined as forms of action that focus upon directly transforming some specific aspects of society by means of the very action itself, instead of claiming something from the state or other power holders. In doing this, this article offers two main illustrative hypotheses. First, that direct social actions represent a significant part of the repertoire of contention - at least in Italy - and that while they tend to be less visible than protest actions, they should still not be overlooked and treated like something “new” every time they resurface. Second, this article claims that the socio-economic context plays an important role in influencing the extended use of DSAs: if the supply of these forms of action by political actors is constant across time, what changes is the demand, that in times of economic hardship tends to characterise a broader constituency. We conclude by suggesting empirical methods to verify the hypothe-ses proposed, paving the way for future research on this topic.
Journal Article
Collective Action Outcomes: Ways Forward for the Subfield
Given the growing interest in how collective action matters, this special issue seeks to push our understanding of collective action outcomes beyond the present state of knowledge and stimulate further developments. In doing this, it looks to improve and expand the theoretical and conceptual tools for studying the topic, suggest and explore methodological innovations to solve previous research problems and investigate new settings across various movements and countries.
Journal Article
Paths toward the Same Form of Collective Action: Direct Social Action in Times of Crisis in Italy
Heterogeneous collective actors often select the same form of action, but there is no academic investigation into how and when this happens. This article does so focusing on direct social action, that is, a form of collective action that does not primarily focus upon claiming something from the state but instead focuses upon directly transforming some specific aspects of society. Building on conceptual categories developed by social movements’ scholars (context, organization, and identity) and relying on rich qualitative and quantitative data from collective actors in Italy in a time of crisis, this article identifies four paths toward direct social actions (DSA): the social path, the political-social path, the social-political path, and the political path. In doing so, our analysis shifts from the search for causal factors to the reconstruction of the dynamic, patterned sequences of events by which collective actors progress in adopting a certain form of action. The implications of these findings extend beyond studies of DSA in times of crisis in Italy, to an analysis of collective action in general. Capturing these multiple paths also has important implications for understanding how the same form of action is differently implemented and received when it is adopted by different actors.
Journal Article
Dynamics of political violence
Dynamics of Political Violence examines how violence emerges and develops from episodes of contentious politics. By considering a wide range of empirical cases, such as anarchist movements, ethno-nationalist and left-wing militancy in Europe, contemporary Islamist violence, and insurgencies in South Africa and Latin America, this pathbreaking volume of research identifies the forces that shape radicalization and violent escalation. It also contributes to the process-and-mechanism-based models of contentious politics that have been developing over the past decade in both sociology and political science. Chapters of original research emphasize how the processes of radicalization and violence are open-ended, interactive, and context dependent. They offer detailed empirical accounts as well as comprehensive and systematic analyses of the dynamics leading to violent episodes. Specifically, the chapters converge around four dynamic processes that are shown to be especially germane to radicalization and violence: dynamics of movement-state interaction; dynamics of intra-movement competition; dynamics of meaning formation and transformation; and dynamics of diffusion.
eBook
Jet ignition in small two-stroke engines: an experimental survey on benefits and challenges
Increasingly stringent policy on carbon dioxide have proved to be a severe constraint on the design of light two-stroke (2S) engines. The enhancement of efficiency is claimed to be the main target to make these devices compliant with future regulations. Low-Pressure Direct Injection (LPDI) was found to be effective in the reduction of fuel short circuit, thus improving efficiency and mitigating pollution. Innovative combustion technologies are required to exploit further the fuel potential. Jet Ignition (JI), i.e., ignition provided by means of hot turbulent jets, was found to improve the fuel ignition process, leading to a faster and more uniform combustion. Several benefits are shown in over forty years of Literature, from the higher performance to wider flammability limits. However, few studies have been performed on small 2S engines, for which only full-load data are available. This paper aims at experimentally evaluating benefits and challenges of adopting the JI technology on light 2S LPDI engines at both full- and low- load operation. Different configurations of passive prechambers have been investigated in terms of indicated cycle, brake efficiency and cycle-to-cycle variation. A sensitivity analysis on the spark timing was performed to fine-tune the combustion process. Results show the adequacy of the JI for use in devices operating close to full torque, like garden tools; however, issues related to the excessive amount of residual gas or to the rapid pressure decrease during the expansion phase were highlighted. Different solutions for solving these challenges are proposed.
Journal Article
Paths toward the Same Form of Collective Action: Direct Social Action in Times of Crisis in Italy1,2
Heterogeneous collective actors often select the same form of action, but there is no academic investigation into how and when this happens. This article does so focusing on direct social action, that is, a form of collective action that does not primarily focus upon claiming something from the state but instead focuses upon directly transforming some specific aspects of society. Building on conceptual categories developed by social movements’ scholars (context, organization, and identity) and relying on rich qualitative and quantitative data from collective actors in Italy in a time of crisis, this article identifies four paths toward direct social actions (DSA): the social path, the political-social path, the social-political path, and the political path. In doing so, our analysis shifts from the search for causal factors to the reconstruction of the dynamic, patterned sequences of events by which collective actors progress in adopting a certain form of action. The implications of these findings extend beyond studies of DSA in times of crisis in Italy, to an analysis of collective action in general. Capturing these multiple paths also has important implications for understanding how the same form of action is differently implemented and received when it is adopted by different actors.
Journal Article
Detection of vaneless diffuser rotating stall by means of dynamic pressure sensors and acoustic measurements
An accurate estimation of rotating stall is one of the key technologies for high-pressure centrifugal compressors. Several techniques have been proposed to detect the stall onset; inter alia, few dynamic pressure probes have been shown to not only properly detect the phenomenon, but also reconstruct the stall characteristics after an ensemble averaging approach. The massive use of this technique in the field is, however, not a common practice yet. In the present study, the use of dynamic pressure probes has been combined with that of an environmental microphone to evaluate the prospects of this latter for a possible stall onset detection. To this end, experimental tests have been carried out in the experimental test rig of the Department of Industrial Engineering (DIEF) of Università degli Studi di Firenze. Results show that the microphone was able to distinguish the onset of rotating stall accurately and promptly, even though – differently from dynamic pressure sensors - it does not provide sufficient information to determine the characteristics of the stall pattern. On this basis, the use of acoustic measurements could find room for automatic detection of rotating stall onset.
Journal Article
Explaining Pathways to Armed Activism in the Provisional Irish Republican Army, 1969–1972
In this article three pathways into armed activism are identified among those who joined the Provisional Irish Republican Army (PIRA) in Northern Ireland between 1969 and 1972. The accounts of former volunteers generally suggest that for those who were already involved in the Republican movement before 1969, a trajectory of mobilization emerged because of the long-standing counterhegemonic consciousness present in their homes, which in turn strongly influenced them as committed Republican militants. For those who joined after 1969 and had previously been involved in other political activities, mobilization was a result of a particular transformative event that triggered the belief that armed struggle was the only approach capable of bringing change in the new sociopolitical situation of the time. For the majority, that is, those who joined after 1969 at a very young age without any previous involvement in organized networks of activism, it began as a more abruptly acquired sense of obligation to defend their own community and retaliate against the Northern Ireland establishment, the Loyalists, and the British army. Overall, the accounts of former volunteers generally suggest that Republican volunteers were fighting first and foremost to reclaim dignity, build honor, and instill a sense of pride in themselves and their community through armed activism. In these terms, the choice of joining the PIRA was justified not as a mere reproduction of an ideological alignment to the traditional Republican aim of achieving Irish reunification but as part of a recognition struggle. At an analytic level, this article illustrates the utility of a multimechanisms interpretative framework. And it contributes to broadening the empirical basis by presenting and analyzing a series of 25 semistructured interviews with former PIRA volunteers.
Journal Article
