Efficient Bayesian approach for multilocus association mapping including gene-gene interactions.

Background: since the introduction of large-scale genotyping methods that can be utilized in genome-wide association (GWA) studies for deciphering complex diseases, statistical genetics has been posed with a tremendous challenge of how to most appropriately analyze such data. A plethora of advanced model-based methods for genetic mapping of traits has been available for more than 10 years in animal and plant breeding. However, most such methods are computationally intractable in the context of genome-wide studies.

Hopping modulation in a one-dimensional Fermi-Hubbard Hamiltonian.

We consider a strongly repulsive two-component Fermi gas in a one-dimensional optical lattice described in terms of a Hubbard Hamiltonian. We analyze the response of the system to a periodic modulation of the hopping amplitude in the presence of a large two-body interaction. By (essentially) the exact simulations of the time evolution, we find a nontrivial double occupancy frequency dependence.

Hollow nanoparticle nanotubes with a nanoscale brick wall structure of clay mineral platelets.

Long hollow inorganic nanoparticle nanotubes have been synthesized by templating of block copolymer electrospun fibers with clay mineral platelets followed by interlinking of the platelets using condensation reactions.

Exploring the effect of xenon on biomembranes.

We report the initial findings of 100 ns molecular dynamics simulations of the role of cellular membranes in general anaesthesia. The effect of xenon on hydrated dipalmitoylphosphatidylcholine bilayers is described. The xenon atoms were found to prefer the interfacial and central regions of the bilayer.

Paenibacillus stellifer sp. nov., a cyclodextrin-producing species isolated from paperboard.

The microflora isolated from food-packaging board is dominated by paenibacilli; a number of these micro-organisms have been characterized using a polyphasic approach. The highest 16S rRNA gene similarity was found between these isolates and Paenibacillus azotofixans ATCC 35681(T) (97.7 %).

Vortices in trapped superfluid fermi gases.

We consider a superfluid of trapped fermionic atoms and study the single vortex solution in the Ginzburg-Landau regime. We define simple analytical estimates for the main characteristics of the system, such as the vortex core size, temperature regimes for the existence of a vortex, and the effects of rotation and interactions with normal fermions. The parameter dependence of the vortex core size (healing length) is found to be essentially different from that of the healing length in metallic superconductors or in trapped atomic Bose-Einstein condensation in the Thomas-Fermi limit.