1,440 research outputs found
Color superconductivity vs. pseudoscalar condensation in a three-flavor NJL model
We calculate numerically the phase diagram of the three-flavor
Nambu-Jona-Lasinio model at zero and finite temperature as a function of the
up, down, and strange quark chemical potentials. We focus on the competition
between pseudoscalar condensation and color superconductivity. We find that the
two types of phases are separated by first-order transitions.Comment: 8 pages, 7 figures, revtex. References added, minor other changes,
conclusions unchanged. To appear in PR
A flexible fit:Developing a suitable manual framework for person attuned musical interaction in dementia care through a realist approach
Wild Collection and Cultivation of Native Species in Iceland
Based on an MSc thesis submitted to the joint Master program between University of Kassel and University of Goettingen and later published: WHITNEY C.W., GEBAUER J. & ANDERSON M. 2012. A Survey of Wild Collection and Cultivation of Indigenous Species in Iceland. Human Ecology.
This paper outlines a survey of Icelanders who use local plants. Some of the species (e.g. Angelica spp. and Betula spp.) were very important. However, great potential exists for a more diverse harvest and for sustainable management (e.g. Organic certification). There is also potential for the spreading native plant use knowledge and the inherent associated conservation culture. The data also suggests that cultural conservation should focus on food, which appears to be paramount in increasing the cultural importance of a plant
A scoping review and template analysis of manual-based complex interventions in dementia care
Strong scaling of general-purpose molecular dynamics simulations on GPUs
We describe a highly optimized implementation of MPI domain decomposition in
a GPU-enabled, general-purpose molecular dynamics code, HOOMD-blue (Anderson
and Glotzer, arXiv:1308.5587). Our approach is inspired by a traditional
CPU-based code, LAMMPS (Plimpton, J. Comp. Phys. 117, 1995), but is implemented
within a code that was designed for execution on GPUs from the start (Anderson
et al., J. Comp. Phys. 227, 2008). The software supports short-ranged pair
force and bond force fields and achieves optimal GPU performance using an
autotuning algorithm. We are able to demonstrate equivalent or superior scaling
on up to 3,375 GPUs in Lennard-Jones and dissipative particle dynamics (DPD)
simulations of up to 108 million particles. GPUDirect RDMA capabilities in
recent GPU generations provide better performance in full double precision
calculations. For a representative polymer physics application, HOOMD-blue 1.0
provides an effective GPU vs. CPU node speed-up of 12.5x.Comment: 30 pages, 14 figure
Geochemical survey and metalworking : analysis of chemical residues derived from experimental non-ferrous metallurgical processes in a reconstructed roundhouse
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