1,122 research outputs found
Anthropologies of Unemployment: New Perspectives on Work and Its Absence
[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 gauge theories --- Resymplecticisation, scale setting and topology
As part of an ongoing programme to study gauge theories as
potential realisations of composite Higgs models, we consider the case of
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
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
We provide the first determination of the mass of the lightest flavor-singlet
pseudoscalar and scalar bound states (mesons), in the 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 and
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
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
Yang-Mills theories on the lattice: scale setting and topology
We study Yang-Mills lattice theories with gauge group, with
, for . We show that if we divide the renormalised
couplings appearing in the Wilson flow by the quadratic Casimir of the
group, then the resulting quantities display a good agreement among
all values of 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 theories, and extrapolate the
results to the continuum limit for each .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
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
- …