17,196 research outputs found
Representing Childhood and Forced Migration: Narratives of Borders and Belonging in European Screen Content for Children
This article explores representations of childhood and forced migration within a selection of European screen content for and about children. Based on the findings of a research project that examined the intersections of children’s media, diversity, and forced migration in Europe (www.euroarabchildrensmedia.org), funded by the UK’s Arts and Humanities Research Council, the article highlights different ways in which ideas of borders and belonging are constructed and deconstructed in a selection of films and television programmes that feature children with an immigration background. Drawing on ideas around the “politics of pity” (Arendt), the analysis explores conditions under which narratives of otherness arise when it comes to representing forcibly displaced children within European-produced children’s screen media. It also examines screen media that destabilize borders of “us” and “the other” by emphasizing the agency of children from migration backgrounds, and revealing both the similarities and the differences between European children with immigration backgrounds and White European-born children. It is argued here that, operating according to the notions of living “together-in-difference” (Ang), “narratability” (Chouliaraki and Stolic), and “the struggle for belonging” (Kebede), these representations destabilize narratives of borders and otherness, suggesting that children with a family history of immigration “belong” to European societies in the same ways as White European-born children
An Exploratory Study of Black Male College Athletes' Perceptions on Race and Athlete Activism
The authors conducted a quantitative study of six black male athletes at American universities. Using the intellectual paradigm of critical race theory, they analyze the athletes' views on race and the role of athlete activism in their generation
Large-Scale Sensor Network Localization via Rigid Subnetwork Registration
In this paper, we describe an algorithm for sensor network localization (SNL)
that proceeds by dividing the whole network into smaller subnetworks, then
localizes them in parallel using some fast and accurate algorithm, and finally
registers the localized subnetworks in a global coordinate system. We
demonstrate that this divide-and-conquer algorithm can be used to leverage
existing high-precision SNL algorithms to large-scale networks, which could
otherwise only be applied to small-to-medium sized networks. The main
contribution of this paper concerns the final registration phase. In
particular, we consider a least-squares formulation of the registration problem
(both with and without anchor constraints) and demonstrate how this otherwise
non-convex problem can be relaxed into a tractable convex program. We provide
some preliminary simulation results for large-scale SNL demonstrating that the
proposed registration algorithm (together with an accurate localization scheme)
offers a good tradeoff between run time and accuracy.Comment: 5 pages, 8 figures, 1 table. To appear in Proc. IEEE International
Conference on Acoustics, Speech, and Signal Processing, April 19-24, 201
Beyond Word N-Grams
We describe, analyze, and evaluate experimentally a new probabilistic model
for word-sequence prediction in natural language based on prediction suffix
trees (PSTs). By using efficient data structures, we extend the notion of PST
to unbounded vocabularies. We also show how to use a Bayesian approach based on
recursive priors over all possible PSTs to efficiently maintain tree mixtures.
These mixtures have provably and practically better performance than almost any
single model. We evaluate the model on several corpora. The low perplexity
achieved by relatively small PST mixture models suggests that they may be an
advantageous alternative, both theoretically and practically, to the widely
used n-gram models.Comment: 15 pages, one PostScript figure, uses psfig.sty and fullname.sty.
Revised version of a paper in the Proceedings of the Third Workshop on Very
Large Corpora, MIT, 199
The interaction energy of well-separated Skyrme solitons
We prove that the asymptotic field of a Skyrme soliton of any degree has a
non-trivial multipole expansion. It follows that every Skyrme soliton has a
well-defined leading multipole moment. We derive an expression for the linear
interaction energy of well-separated Skyrme solitons in terms of their leading
multipole moments. This expression can always be made negative by suitable
rotations of one of the Skyrme solitons in space and iso-space.We show that the
linear interaction energy dominates for large separation if the orders of the
Skyrme solitons' multipole moments differ by at most two. In that case there
are therefore always attractive forces between the Skyrme solitons.Comment: 27 pages amslate
Internal structure of preformed Cooper pairs
In order to obtain information about the internal structure of the preformed
pairs in the pseudogap state of high superconductors, we calculate the
propagator of a singlet pair with center of mass coordinate , and
relative distance , by solving the Bethe-Salpeter equation,
representing the sum over repeated two-particle scattering events due to a
distance dependent attraction. We define then a ``pair structure function''
that depends on the internal distance
between the partners and on the momentum of the pair.
We calculate this function both for a local potential and wave symmetry of
the order parameter and for a separable potential and wave symmetry of the
order parameter. The influence of the center of mass momentum, strenght of the
interaction, temperature, density of particles and of the pseudogap in the
one-electron spectrum is studied for both cases.Comment: 12 pages, REVTeX4, 8 EPS figure
Nanotrapping and the thermodynamics of optical tweezers
Particles that can be trapped in optical tweezers range from tens of microns
down to tens of nanometres in size. Interestingly, this size range includes
large macromolecules. We show experimentally, in agreement with theoretical
expectations, that optical tweezers can be used to manipulate single molecules
of polyethylene oxide suspended in water. The trapped molecules accumulate
without aggregating, so this provides optical control of the concentration of
macromolecules in solution. Apart from possible applications such as the
micromanipulation of nanoparticles, nanoassembly, microchemistry, and the study
of biological macromolecules, our results also provide insight into the
thermodynamics of optical tweezers.Comment: 5 pages, 3 figures, presented at 17th AIP Congress, Brisbane, 200
Time for the Ancients
The book offers an overview of experiences, theories and conceptions of time in the Graeco-Roman world. It presents the results of new research on neglected medical texts, relating to time management, aging and times of life, and the importance of the accurate time assessment. At the same time it draws together the most important findings of much recent classical scholarship on ancient attitudes to time, and presents them in accessible form
The essence of rage: Galen on emotional disturbances and their physical correlates
In Galen’s psychology, a post-Platonist ethical-behavioural model sits alongside physical and physiological explanations deriving from medicine and biology; and it is not always clear how the different models are harmonized. This chapter explores the problem by focusing on one particular are of his psycho physical theory, his account of the relationship between soul and body in a range of emotionally disturbed states (e.g. anger, distress, shame) which involve the heart and the blood. It explores the significance—philosophical, philosophical-historical, diagnostic—of Galen’s claim of the priority of the physical in such states. Through close consideration of a number of relevant texts, light is shed on a neglected area of Galen’s medical-philosophical thought, at the same time helping to illuminate the problematic question of Galen’s ‘models of the soul’ more generally
Midlatitude Pi2 pulsations: AFGL and ISEE magnetometer observations correlated
The ISEE observations of the pi2 magnetic pulsations occuring substorm onset in the inner magnetosphere are discussed. One of these events which was also detected as a pi2 event by the AFGL midlatitude magnetometers is considered. The event occurred when the foot of the ISEE field line was over North America. The ground and satellite signals are remarkably similar: they start and stop at the same time, have the same period and can be correlated cycle by cycle. The waves are detected in the electric field data from ISEE 1 and in the magnetic field data from both ISEE 1 and ISEE 2. Calculation of the Poynting vector at ISEE 1 shows that the energy flowed mainly westward, but that there was also a component towards the nearer (southern) ionospheric foot of the field line. The phases between the various field components measured by ISEE 1 and 2 indicate that this is a standing hydromagnetic oscillation
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