1,122 research outputs found

    Anthropologies of Unemployment: New Perspectives on Work and Its Absence

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    [Excerpt] Anthropologies of Unemployment offers accessible, theoretically innovative, and ethnographically rich examinations of unemployment in rural and urban regions across North and South America, Europe, Africa, and Asia. The diversity of case studies demonstrates that unemployment is a pressing global phenomenon that sheds light on the uneven consequences of free-market ideologies and policies. Economic, social, and cultural marginalization is common in the lives of the unemployed, but their experience and interpretation are shaped by local and national cultural particularities. In exploring those differences, the contributors to this volume employ recent theoretical innovations and engage with some of the more salient topics in contemporary anthropology, such as globalization, migration, youth cultures, bureaucracy, class, gender, and race. Taken together, the chapters reveal that there is something new about unemployment today. It is not a temporary occurrence, but a chronic condition. In adjusting to persistent, longstanding unemployment, people and groups create new understandings of unemployment as well as of work and employment; they improvise new forms of sociality, morality, and personhood. Ethnographic studies such as those found in Anthropologies of Unemployment are crucial if we are to understand the broader forms, meanings, and significance of pervasive economic insecurity and discover the emergence of new social and cultural possibilities

    Higgs compositeness in Sp(2N)\mathrm{Sp}(2N) gauge theories --- Resymplecticisation, scale setting and topology

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    As part of an ongoing programme to study Sp(2N)\mathrm{Sp}(2N) gauge theories as potential realisations of composite Higgs models, we consider the case of Sp(4)\mathrm{Sp}(4) on the lattice, both as a pure gauge theory, and with two Dirac fermion flavors in the fundamental representation. In order to compare results between these two cases and maintain control of lattice artefacts, we make use of the gradient flow to set the scale of the simulations. We present some technical aspects of the simulations, including preliminary results for the scale setting in the two cases and results for the topological charge history.Comment: 8 pages, 6 figures; talk presented at the 35th International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spai

    Rotational precision MEMS-based clamping mechanism for stable fixation of elastic mechanisms

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    Conventional TEM sample manipulators often lack the crucial stability of 0.1 nm/min. A MEMS manipulator attached directly to the TEM pole would greatly increase both thermal and dynamic stability. However a stable E-beam requires no interference of electric or magnetic fields. Therefore the manipulator should be stably fixed without power. To this end a mechanical clamp is presented which clamps one of the actuators of the TEM sample manipulator (Figure 2). The clamp incorporates a relatively large clamp force of 0.5 mN with respect to the device area and is able to maintain the clamp force without external power. In previous work [1] a theoretical basis has been presented of an earlier clamp version. In this paper a rotational clamp which has been made and tested is presented. This clamp design is part of a research project for a 6 Degree of Freedom MEMS TEM sample manipulator. \u

    Singlets in gauge theories with fundamental matter

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    We provide the first determination of the mass of the lightest flavor-singlet pseudoscalar and scalar bound states (mesons), in the Sp(4)\rm{Sp}(4) Yang-Mills theory coupled to two flavors of fundamental fermions, using lattice methods. This theory has applications both to composite Higgs and strongly-interacting dark matter scenarios. We find the singlets to have masses comparable to those of the light flavored states, which might have important implications for phenomenological models. We focus on regions of parameter space corresponding to a moderately heavy mass regime for the fermions. We compare the spectra we computed to existing and new results for SU(2)\rm{SU}(2) and SU(3)\rm{SU}(3) theories, uncovering an intriguing degree of commonality. As a by-product, in order to perform the aforementioned measurements, we implemented and tested, in the context of symplectic lattice gauge theories, several strategies for the treatment of disconnected-diagram contributions to two-point correlation functions. These technical advances set the stage for future studies of the singlet sector in broader portions of parameter space of this and other lattice theories with a symplectic gauge group.Comment: 26 pages, 7 figures, 6 table

    Higgs compositeness in Sp(2N) gauge theories — Resymplecticisation, scale setting and topology

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    As part of an ongoing programme to study Sp(2N) gauge theories as potentialrealisations of composite Higgs models, we consider the case of Sp(4) on the lattice, bothas a pure gauge theory, and with two Dirac fermion flavors in the fundamental representation.In order to compare results between these two cases and maintain control oflattice artefacts, we make use of the gradient flow to set the scale of the simulations. Wepresent some technical aspects of the simulations, including preliminary results for thescale setting in the two cases and results for the topological charge history

    Sp(2N)Sp(2N) Yang-Mills theories on the lattice: scale setting and topology

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    We study Yang-Mills lattice theories with Sp(Nc)Sp(N_c) gauge group, with Nc=2NN_c=2N, for N=1, ⋯ , 4N=1,\,\cdots,\,4. We show that if we divide the renormalised couplings appearing in the Wilson flow by the quadratic Casimir C2(F)C_2(F) of the Sp(Nc)Sp(N_c) group, then the resulting quantities display a good agreement among all values of NcN_c considered, over a finite interval in flow time. We use this scaled version of the Wilson flow as a scale-setting procedure, compute the topological susceptibility of the Sp(Nc)Sp(N_c) theories, and extrapolate the results to the continuum limit for each NcN_c.Comment: 19 pages, 17 figures. v4: Typos corrected in eq. 35, Figures 3 and 4. Results unchange

    Traumatic life experiences and religiosity in eight countries

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    We present two datasets from a project about the relationship between traumatic life experiences and religiosity. These include data from 1,754 individuals in the United States (n = 322), Brazil (n = 205), China (n = 202), India (n = 205), Indonesia (n = 205), Russia (n = 205), Thailand (n = 205), and Turkey (n = 205). Surveys were consistent across samples: they include measures of traumatic life experiences, negative affective traits, existential security, life satisfaction, death anxiety, and various religious beliefs, attitudes, and behaviours. Psychometric evaluations of measures of supernatural belief and death anxiety were conducted
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