The Singularities of the Wave Trace of the Basic Laplacian of a Riemannian Foliation

We apply techniques of microlocal analysis to the study of the transverse geometry of Riemannian foliations in order to analyze spectral invariants of the basic Laplacian acting on functions on a Riemannian foliation with a bundle-like metric. In particular, we consider the trace of the basic wave operator when the mean curvature form is basic. We extend the concept of basic functions to distributions and demonstrate the existence of the basic wave kernel. The singularities of the trace of this basic wave kernel occur at the lengths of certain geodesic arcs which are orthogonal to the closures of the leaves of the foliation. In cases when the foliation has regular closure, a complete representation of the trace of the basic wave kernel can be computed for $t\not=0$. Otherwise, a partial trace formula over a certain set of lengths of well-behaved geodesic arcs is obtained

A Method to Separate Stochastic and Deterministic Information from Electrocardiograms

In this work we present a new idea to develop a method to separate stochastic and deterministic information contained in an electrocardiogram, ECG, which may provide new sources of information with diagnostic purposes. We assume that the ECG has information corresponding to many different processes related with the cardiac activity as well as contamination from different sources related with the measurement procedure and the nature of the observed system itself. The method starts with the application of an improuved archetypal analysis to separate the mentioned stochastic and deterministic information. From the stochastic point of view we analyze Renyi entropies, and with respect to the deterministic perspective we calculate the autocorrelation function and the corresponding correlation time. We show that healthy and pathologic information may be stochastic and/or deterministic, can be identified by different measures and located in different parts of the ECG.Comment: 4 pages, 6 figure

Digital workers of the World unite! A framework for critically theorising and analysing digital labour

The overall task of this paper is to elaborate a typology of the forms of labour that are needed for the production, circulation and use of digital media. First, we introduce a cultural-materialist perspective on theorising digital labour. Second, we discuss the relevance of Marx’s concept of the mode of production for the analysis of digital labour. Third, we introduce a typology of the dimensions of working conditions. Fourth, based on the preceding sections we present a digital labour analysis toolbox. Finally, we draw some conclusions. We engage with the question what labour is, how it differs from work, which basic dimensions it has and how these dimensions can be used for defining digital labour. We introduce the theoretical notion of the mode of production as analytical tool for conceptualizing digital labour. Modes of production are dialectical units of relations of production and productive forces. Relations of production are the basic social relations that shape the economy. Productive forces are a combination of labour power, objects and instruments of work in a work process, in which new products are created. We have a deeper look at dimensions of the work process and the conditions under which it takes place. We present a typology that identifies dimensions of working conditions. It is a general typology that can be used for the analysis of any production process

What would Rosa do? Co-operatives and radical politics

The question of what co-operatives can contribute to the left is explored in the light of Rosa Luxemburg’s apparent rejection of reformist organisations in her ‘Reform or revolution’, written at the beginning of the early twentieth century. Drawing on interviews with worker co-operatives in the UK cultural industries, Sandoval teases out the politics of working in co-ops, and shows that, although the kinds of co-ops she is discussing tend to operate at the small-scale prefigurative level, they help open up the political spaces on which bigger political action can build - although this undoubtedly requires making connections both between individual co-ops and between co-ops and the wider left. Her conclusion is that different times require different tactics, and that, though Luxemburg would not have seen much value in co-ops solely as a form of prefigurative politics, she would have valued them if they could at the same time contribute to advancing the greater goal of building a radical alternative

Fighting Precarity with Co-operation? Worker Co-operatives in the Cultural Sector

This paper explores avenues for resistance to precarious and exploited labour in the cultural sector. It investigates the potential of worker co-operatives to help improve working conditions and radically reimagine cultural work. The concept of worker co-ops focuses on democratising ownership and decision-making power. It challenges class divisions and promises to empower workers by giving them more control over their working lives. However, co-ops are constrained by competitive market pressures, creating tensions between economic necessity and political goals. Examining current debates on co-operatives the article explores co-ops as a radical pre-figurative political project, mobilised in a reformist attempt to create a more ethical capitalism or be integrated into neoliberal discourses of entrepreneurship and individual responsibility. It goes on to discuss the potentials and limitations of worker co-ops by looking at precariousness, inequality and individualisation of cultural sector work arguing that radical co-ops can play an important role within a larger movement that mobilises collectivity to confront neoliberal individualisation and capitalist realism

Foxconned labour as the dark side of the information age: Working conditions at Apple’s contract manufacturers in China

Apple is one of the most dominant and most admired computer companies in the world. But hidden behind the clean surface of Apple’s advanced gadgets lies a dirty world of work. This paper focuses on the dark side of the information age by looking at working conditions in the workshops of Apple’s contract manufacturers in China. For this purpose I suggest a systematic model of working conditions that can be used for assessing and comparing work in different industries. Departing from Karl Marx’s circuit of capital it identifies elements that shape working conditions throughout the capital accumulation process including productive forces, relations of production, the production process, products, and labour legislation. Subsequently I apply this model to the realm of electronics manufacturing. Based on research conducted by corporate watchdogs this paper provides detailed insights into the work and life reality of workers in Apple’s first tier supplier factories. An analysis of Apple’s response to labour rights allegations furthermore reveals three ideological patterns that rather obscure existing problems than offering viable solutions