2,396 research outputs found

    On Modules Over Motivic Ring Spectra

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    In this note, we provide an axiomatic framework that characterizes the stable ∞\infty-categories that are module categories over a motivic spectrum. This is done by invoking Lurie's ∞\infty-categorical version of the Barr--Beck theorem. As an application, this gives an alternative approach to R\"ondigs and \O stv\ae r's theorem relating Voevodsky's motives with modules over motivic cohomology, and to Garkusha's extension of R\"ondigs and \O stv\ae r's result to general correspondence categories, including the category of Milnor-Witt correspondences in the sense of Calm\`es and Fasel. We also extend these comparison results to regular Noetherian schemes over a field (after inverting the residue characteristic), following the methods of Cisinski and D\'eglise.Comment: 18 pages, v3. Referee report incorporated, Cor 5.8 made conditional on an \infty-categorical construction of E-correspondences, various minor changes. Submitted. Comments welcome

    Spaces of the Past, Histories of the Present: An Interview with Stuart Elden and Derek Gregory

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    The ontologies of space and territory, our experience of them and the techniques we use to govern them, the very conception of the socio-spatial formations that we inhabit, are all historically specific: they depend on a genealogy of practices, knowledges, discourses, regulations, performances and representations articulated in a way that is extremely complex yet nevertheless legible over time. In this interview we look at the logic and the patterns that intertwine space and time — both as objects and tools of inquiry — though a cross-disciplinary dialogue. The discussion with Stuart Elden and Derek Gregory covers the place of history in socio-spatial theory and in their own work, old and new ways of thinking about the intersection between history and territory, space and time, the implications of geography and history for thinking about contemporary politics, and the challenges now faced by critical thought and academic work in the current neo-liberal attack on public universities and the welfare stat

    Alien Registration- Mcintosh, Elden (Madawaska, Aroostook County)

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    https://digitalmaine.com/alien_docs/35432/thumbnail.jp

    A more Marxist Foucault? Reading Foucault's La société punitive

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    This article analyses Foucault’s 1972–3 lecture course, La sociĂ©tĂ© punitive. While the course can certainly be seen as an initial draft of themes for the 1975 book Surveiller et punir (Discipline and Punish), there are some important differences. The reading here focuses on different modes of punishment; the civil war and the social enemy; the comparison of England and France; and political economy. It closes with some analysis of the emerging clarity in Foucault’s work around power and genealogy. This is a course where Foucault makes use of Marxist language and categories, engages with historical materialism, and offers a complementary and at times corrective focus

    Avifauna Ethological Response to Unmanned Aircraft Systems

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    This study investigated the ethological response of avifauna to the operation of unmanned aircraft systems (UAS). Proliferation of consumer, commercial, and military applications of UAS have provided environmental managers a new tool to use in their discipline. However, it has also promoted the need for critical examination of the effects UAS may have on existing natural resource practices, such as the management of avifauna populations. While this technology has largely been regarded as a beneficial new tool for efforts like wildlife population monitoring, it is not without potential effects to target species. This is particularly relevant to birds which share use of a common habitat feature with UAS operators – airspace. Research objectives for this project included: (1) determining how avifauna will respond to UAS operation, (2) quantify which taxonomic groups of birds have been exposed to UAS to-date, (3) identifying factors that influence the behavioral interaction, and (4) investigating the role of setback distance, or buffers, to mitigate any negative effects to birds. To accomplish this, I conducted a comprehensive literature review and metanalysis of the current body of literature reporting interactions between UAS and avifauna, distributed an original survey to US Department of the Interior Remote Pilots regarding their field observations of avifauna while flying UAS missions, and I investigated the regulatory framework for people or organizations who desire or are required to legally operate UAS within the proximate vicinity of bird species. My efforts concluded: (1) birds can respond mildly to severely, evasively or antagonistically, to the operation of UAS, (2) 87 bird species have been documented interacting with UAS as of early 2018, (3) factors of each interaction component [bird, drone, and environment] are all important variables in determining the type of reactions seen, and (4) as a general rule the implementation of a 100-meter buffer between avifauna and UAS operations should sufficiently avoid or mitigate any behavioral impacts (e.g., disturbance) to those target species. This research may serve to inform future research and regulatory mechanisms developed around the safe operation of UAS in tandem with good conservation practices for the avifauna that now shares airspace with human beings in a new way

    Algebraic Cobordism and \'Etale Cohomology

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    Thomason's \'{e}tale descent theorem for Bott periodic algebraic KK-theory \cite{aktec} is generalized to any MGLMGL module over a regular Noetherian scheme of finite dimension. Over arbitrary Noetherian schemes of finite dimension, this generalizes the analog of Thomason's theorem for Weibel's homotopy KK-theory. This is achieved by amplifying the effects from the case of motivic cohomology, using the slice spectral sequence in the case of the universal example of algebraic cobordism. We also obtain integral versions of these statements: Bousfield localization at \'etale motivic cohomology is the universal way to impose \'etale descent for these theories. As applications, we describe the \'etale local objects in modules over these spectra and show that they satisfy the full six functor formalism, construct an \'etale descent spectral sequence converging to Bott-inverted motivic Landweber exact theories, and prove cellularity and effectivity of the \'{e}tale versions of these motivic spectra.Comment: 68 pages, results generalized and arguments clarified, comments still welcome

    Thinking Territory Politically

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