An example of an MR image in the OASIS database.

<p>(a) A sagittal section, with the front (anterior) of the head at the right and the top of the head shown at the top. This orientation shows an image as if the subject were being viewed from the right. (b) A coronal section, with the top (superior) of the head displayed at the top and the left shown on the left. This orientation shows an image as if the subject were being viewed from behind. (c) An axial section, with the front (anterior) of the head at the top and the left shown on the left. This orientation appears as if the subject were being viewed from above.</p

The distributions of correct and incorrect matching scores.

<p>The vertical axis represents the distribution of matching scores as a percentage. (a) The distribution of matching scores in the ‘Same-Visit’ experiment. (b) The distribution of matching scores in the ‘Different-Visit’ experiment.</p

The ROCs of the matching experiments.

<p>The solid line (pink line) represents the ‘Same-Visit’ experiment, while the dashed line (black line) represents the ‘Different-Visit’ experiment.</p

Statistics of EER for different biometric technologies.

<p> – the number of subjects (individuals) in the corresponding database.</p><p> – the number of genuine matching pairs.</p><p> – the number of imposter matching pairs. A blank in the table indicates that the corresponding item was not reported.</p

Enhanced Oxygen Reduction Activity on Ruddlesden–Popper Phase Decorated La_0.8Sr_0.2FeO_3−δ 3D Heterostructured Cathode for Solid Oxide Fuel Cells

A new heterostructured (La,Sr)₂FeO_4−δ (LSF₂₁₄)-La_0.8Sr_0.2FeO_3−δ (LSF₁₁₃) electrode has been synthesized to improve the oxygen reduction reaction (ORR). This new materials system was fabricated by the deposition of Sr­(NO₃)₂ into the LSF₁₁₃ framework followed by subsequent heat treatment, resulting in a new three-dimensional (3D) LSF₂₁₄-LSF₁₁₃ heterostructured electrode. This material system consists of a with Ruddlesden–Popper (R–P) LSF₂₁₄ phase formed on the surface of the LSF₁₁₃ framework. The ORR activity has been enhanced by 1 order of magnitude using the LSF₂₁₄-LSF₁₁₃ heterostructured electrode. The ORR enhancement was the result of higher catalytic activity of the LSF₂₁₄ phase and a mismatch in the lattice parameter between LSF₂₁₄ and LSF₁₁₃ regions which results in oxygen molecule adsorption and oxygen vacancy formation become more favered. Impedance spectroscopy measurements revealed that the presence of LSF₂₁₄ reduced the polarization resistance of the LSF₁₁₃ electrode on a ceria-based electrolyte. The high frequency resistance (<i>R</i>_H) and low frequency resistance (<i>R</i>_L) decreased substantially due to the enhanced oxygen transport process and accelerated oxygen incorporation rate in the LSF₂₁₄-LSF₁₁₃ heterostructured electrode. The heterostructured LSF₂₁₄-LSF₁₁₃ electrode provides a promising new approach to improve the oxygen reduction reaction activity through multiphase materials systems with tailored microstructures

XRCC1 Arg194Trp and Arg280His Polymorphisms Increase Bladder Cancer Risk in Asian Population: Evidence from a Meta-Analysis

<div><p>Background</p><p>A lot of studies have investigated the correlation between x-ray cross complementing group 1 (XRCC1) polymorphisms and bladder cancer risk, but the results in Asian population were still inconclusive. We conducted a meta-analysis to ascertain the association of XRCC1 Arg194Trp, Arg280His and Arg399Gln polymorphisms with bladder cancer risk in Asian population.</p><p>Methodology/Principal findings</p><p>The association strength was measured with odds ratios (ORs) and 95% confidence intervals (95% CIs). A total of 9 eligible studies, conducted in China, India and Japan, were identified. We observed a significant increased risk of bladder cancer in dominant model (OR = 1.199, 95% CI: 1.021,1.408, P_{heterogeneity} = 0.372), allele comparison (OR = 1.200, 95% CI: 1.057,1.362, P_{heterogeneity} = 0.107) of Arg194Trp, heterozygote comparison (OR = 1.869, 95% CI: 1.205,2.898, P_{heterogeneity} = 0.011) and dominant model (OR = 1.748, 95% CI: 1.054,2.900, P_{heterogeneity} = 0.01) of Arg280His. Pooled results estimated from adjusted ORs further validated these findings. No publication bias was detected. Subgroup analyses found that significant increased risk was only found among community-based studies not hospital-based studies. There was no evidence of publication bias.</p><p>Conclusion</p><p>This is the first meta-analysis conducted in Asian investigating the correlation between XRCC1 polymorphisms and susceptibility to bladder cancer. Our meta-analysis shows that XRCC1 Arg194Trp and Arg280His polymorphisms are associated with a significantly increased risk of bladder cancer in Asian population.</p></div

Bismuth Doped Lanthanum Ferrite Perovskites as Novel Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells

Bismuth is doped to lanthanum strontium ferrite to produce ferrite-based perovskites with a composition of La_0.8‑xBi_<i>x</i>Sr_0.2FeO_3‑δ (0 ≤ <i>x</i> ≤ 0.8) as novel cathode material for intermediate-temperature solid oxide fuel cells. The perovskite properties including oxygen nonstoichiometry coefficient (δ), average valence of Fe, sinterability, thermal expansion coefficient, electrical conductivity (σ), oxygen chemical surface exchange coefficient (<i>K</i>_chem), and chemical diffusion coefficient (<i>D</i>_chem) are explored as a function of bismuth content. While σ decreases with <i>x</i> due to the reduced Fe⁴⁺ content, <i>D</i>_chem and <i>K</i>_chem increase since the oxygen vacancy concentration is increased by Bi doping. Consequently, the electrochemical performance is substantially improved and the interfacial polarization resistance is reduced from 1.0 to 0.10 Ω cm² at 700 °C with Bi doping. The perovskite with <i>x</i> = 0.4 is suggested as the most promising composition as solid oxide fuel cell cathode material since it has demonstrated high electrical conductivity and low interfacial polarization resistance

Forest plots for XRCC1 Arg194Trp polymorphism.

<p>A: dominant model: ArgTrp+TrpTrp vs. ArgArg; B: allele comparison: Trp vs. Arg.</p

Funnel plots for XRCC1 Arg194Trp (A, allele comparison: Trp vs. Arg) and Arg280His (B, heterozygote comparison: ArgHis vs. ArgArg).

<p>Funnel plots for XRCC1 Arg194Trp (A, allele comparison: Trp vs. Arg) and Arg280His (B, heterozygote comparison: ArgHis vs. ArgArg).</p

Forest plots XRCC1 Arg280His polymorphism.

<p>Heterozygote comparison (ArgHis vs. ArgArg) estimated with raw genotype frequencies (A) and adjusted odds ratios (B).</p