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When I moved to Ottawa I was shocked to find that 50 per cent of my taxes went towards schools.

In his Feb. 6 column, \"Tories should enter B.C.'s open door\", Peter Calamai states: \"Unless freedom of information thrives across this country, democracy itself is in serious jeopardy.

The goal of the Complex Trait Consortium is to promote the development of resources that can be used to understand, treat and ultimately prevent pervasive human diseases. Existing and proposed mouse resources that are optimized to study the actions of isolated genetic loci on a fixed background are less effective for studying intact polygenic networks and interactions among genes, environments, pathogens and other factors. The Collaborative Cross will provide a common reference panel specifically designed for the integrative analysis of complex systems and will change the way we approach human health and disease.

This white paper by eighty members of the Complex Trait Consortium presents a community's view on the approaches and statistical analyses that are needed for the identification of genetic loci that determine quantitative traits. Quantitative trait loci (QTLs) can be identified in several ways, but is there a definitive test of whether a candidate locus actually corresponds to a specific QTL?

We report measurements of the Meissner screening profile in a Nb(300 nm)/Al\\(_{2}\\)O\\(_{3}\\) thin film using \\(^{8}\\)Li \\(\\beta\\)-detected nuclear magnetic resonance (\\(\\beta\\)-NMR). The NMR probe \\(^{8}\\)Li was ion-implanted into the Nb film at energies \\(\\leq\\) 20 keV, corresponding to mean stopping depths comparable to Nb's magnetic penetration depth \\(\\lambda\\). \\(^{8}\\)Li's strong dipole-dipole coupling with the host \\(^{93}\\)Nb nuclei provided a \"cross-relaxation\" channel that dominated in low magnetic fields, which conferred indirect sensitivity to the local magnetic field via the spin-lattice relaxation (SLR) rate \\(1/T_{1}\\). From a fit of the \\(1/T_{1}\\) data to a model accounting for its dependence on temperature, magnetic field, and \\(^{8}\\)Li\\(^{+}\\) implantation energy, we obtained a magnetic penetration depth \\(\\lambda_{0}\\) = 51.5(22) nm, consistent with a relatively short carrier mean-free-path \\(\\ell\\) = 18.7(29) nm typical of similarly prepared Nb films. The results presented here constitute an important step towards using \\(^{8}\\)Li \\(\\beta\\)-NMR to characterize bulk Nb samples with engineered surfaces, which are often used in the fabrication of particle accelerators.

We report measurements of the dynamics of isolated \\(^{8}\\)Li\\(^{+}\\) in single crystal rutile TiO\\(_{2}\\) using \\(\\beta\\)-detected NMR. From spin-lattice relaxation and motional narrowing, we find two sets of thermally activated dynamics: one below 100 K; and one at higher temperatures. At low temperature, the activation barrier is \\(26.8(6)\\) meV with prefactor \\(1.23(5) \\times 10^{10}\\) s\\(^{-1}\\). We suggest this is unrelated to Li\\(^{+}\\) motion, and rather is a consequence of electron polarons in the vicinity of the implanted \\(^{8}\\)Li\\(^{+}\\) that are known to become mobile in this temperature range. Above 100 K, Li\\(^{+}\\) undergoes long-range diffusion as an isolated uncomplexed cation, characterized by an activation energy and prefactor of \\(0.32(2)\\) eV and \\(1.0(5) \\times 10^{16}\\) s\\(^{-1}\\), in agreement with macroscopic diffusion measurements. These results in the dilute limit from a microscopic probe indicate that Li\\(^{+}\\) concentration does not limit the diffusivity even up to high concentrations, but that some key ingredient is missing in the calculations of the migration barrier. The anomalous prefactors provide further insight into both Li\\(^{+}\\) and polaron motion.