1,721,007 research outputs found
Pandemic transition: Techno-politics and social reproduction struggles
No full textWhat are the impacts this pandemic is leaving on politics? In this essay, I will argue that Covid-19 – beyond the rhetoric of exceptionalism or denialism – is unveiling some ‘structural’ features of Western capitalist-societies – on one side, the pervasiveness of digital technologies shaping more and more the public sphere; on the other side, social reproduction as contested terrain between divergent forces. The erosion of spaces for decision-making in liberal democracies seems to be questioned by the emergence of practices of mutualism and claims for common goods
Logistics struggles in the po valley region: Territorial transformations and processes of antagonistic subjectivation
No full textThis article investigates the logistics of contemporary global capitalism from two primary vantage points: the grounded perspective of recent struggles in the logistics sector of northern Italy and a more general interpretation of contemporary spatial transformations. Starting with a few genealogical and theoretical vignettes, we argue that logistics plays a decisive role in contemporary processes of both the establishment of new and mobile forms of territoriality and the production of subjectivity. We hypothesize that these two productive aspects of logistics must be understood as crisscrossed and mutually interacting. The article further takes up the geographical question of scale and attempts to advance the development of analytical tools capable of grasping at once global flows and local peculiarities. With a view to northern Italy and beyond, we conclude by proposing a few conceptualizations: the terraqueous territory; the Po Valley as a form of regionalization; the cooperative system as a specific form of labor exploitation; and the new spaces of antagonistic subjectivation processes
A data-driven approach to assess the role of the groundwater conditions in triggering shallow landslides initiating with frictional failure
No full textIn the Campania region (southern Italy), sloping pyroclastic surfaces in partially saturated conditions are frequently affected by flow-like landslides and shallow slip. In this context, safeguarding human life is entrusted to early warning systems (EWSs), typically based on empirical precipitation intensity-duration thresholds that may suffer from missed and false alarms. Indeed, the consequences of heavy rainfall depend on the hydraulic conditions in the soil before the rainstorm. If this aspect is neglected, precipitation intensity-duration thresholds can fail. However, although the current hydraulic condition in the soil is a discriminating factor, it is rarely measured and taken into account. In this regard, the present study focuses on the assessment of the role of the groundwater conditions for the initiation of shallow landslides, and it may be the first step towards the implementation of an innovative early warning system. At this aim, a numerical approach to reproduce the current hydraulic condition in the slope is presented. This study is based on the back-analysis of two debris flows that occurred in the Campania region by means of uncoupled hydromechanical numerical modelling. The stratigraphy and hydromechanical characteristics of the soil layers are known due to surveys and investigations carried out at an experimental test site set up a few kilometres from the two debris flows that occurred. The results show that in the slopes examined, the hydraulic state in the soil before landslide triggering was correctly reproduced through an infiltration analysis starting a few months before, in which rainfall recorded on site was imposed as an entering flow at ground level. Moreover, it was shown that the water storage in the entire loose soil cover was an effective indicator of the average hydraulic state of the slope; more than local variables, such as matric suction and water content
Circulating through the Pipeline. Algorithmic Subjectivities and Mobile Struggles
Full text linkWe are living within a transformation that has been variously labelled as industrial revolution 4.0, platform economy, digital capitalism. Nevertheless, this change is still mainly conceptualized through the vocabulary of factory system. In this article we aim to contribute to the development of an emerging framework on the ‘new capitalism’ without any nostalgia for the past by exploring some of its potential interpretative categories (pipeline, algorithmic subjectivities, mobile struggles), based in particular on its spatial configurations and on the production of living labour’ subjectivities. Indeed, we are witnessing not simply a wave of technological innovation but a more general transformation of the forms of capitalist valorisation which rely on the role played by spaces and social cooperation. These changes do not affect only spatialities but also the subjective forms of living labour, including his/her practices of organization and struggle
Calibration of a granular matrix sensor for suction measurements in partially saturated pyroclastic soil
Full text linkField monitoring of soil moisture and matrix suction is a useful tool for the implementation of a reliable early warning system against rainfall-induced landslide occurrence. Several test fields have been set up in Campania region (southern Italy), frequently affected by flow-like landslides involving pyroclastic soil cover. In particular, at the Mount Faito test site (Lattari Mountains, southeast of Naples), field matric suctions were measured over two years by conventional jet-fill tensiometers and granular matrix sensors (Watermark, Irrometer®) at different depths. Granular matrix sensor is a resistive device that is more and more spread in agriculture applications and that may also be used for geotechnical purposes thanks to a suitable calibration. In order to gain the calibration curve of the Watermark sensor, two small tip tensiometers (STT) and one High Capacity Tensiometer (HCT) were installed at the same depth of the Watermark sensor in the partially saturated pyroclastic soil sampled at the topsoil of the Mount Faito test site. Tests were carried out in the laboratory by performing drying and wetting phases on undisturbed soil sample. By coupling resistance measurements by Watermark and matrix suction provided by the reference tensiometers, it was possible to derive the non-linear relationship between these two quantities. The soil retention curve was also determined thanks to the installation in the soil sample of a decagon probe previously calibrated in the same pyroclastic soil
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Logistical gazes: Introduction to a special issue of Work Organisation, Labour and Globalisation
Full text linkThis article introduces this special issue of Work Organisation, Labour and Globalisation on logistics. First of all, it furnishes a brief genealogy of logistics in the modern era. Then, it frames some of the main issues in current critical debates on logistics. Finally, it presents the contents of the special issue in detail, connecting them with more general attempts to develop a 'logistical gaze' as a methodological perspective on the different and multiple transformations of contemporary capitalism
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