SNP markers provide the primary data for population structure analysis. In this study, we employed whole-genome autosomal SNPs as a marker set (54,836 SNP markers) and tested their possible effects on genetic ancestry using 320 subjects covering 24 regional groups including Northern (=16) and Southern (=3) Asians, Amerindians (=1), and four HapMap populations (YRI, CEU, JPT, and CHB). Additiona...

The oriental fruit fly, Bactrocera dorsalis, was initially recorded in Taiwan Island in 1912, and has dispersed to many areas in the Pacific-Asia region over the last century. The area of origin of the species may be confidently placed in South-East China. However, routes of range expansion to new areas and underlying population processes remain partially unclear, despite having been the subjec...

This paper presents three dimensional study of a ferrofluid seal, its centering effect and its static capacity. Thus, a method based on a potential energy criterion has been put forward to study the seal shape. But such a use of ferrofluid seals is interesting only if the magnetic field created by the permanent magnets saturates totally the ferrofluid. Two cylindrical structures consisting of t...

Community web sites exhibit two dominating properties: They often need to integrate many different information sources and they require an adequate web site management system. SEAL (SEmantic portAL) is a conceptual model that exploits ontologies for fulfilling the requirements set forth by these two properties at once. The ontology provides a high level of sophistication for web information int...

A combination of image processing and matching techniques is proposed to solve the problem of seal identification. The techniques include thresholding, rotation, thinning, reexpansion, and finally matching of seal images. The principle for identification is based on the fact that the spatial distributions of the stroke skeletons of the characters engraved by human hands on two distinct seals wi...

BACKGROUND Limited evidence suggests that people from non-English speaking backgrounds in Australia have lower than average rates of participation in cancer screening programs. The objective of this study was to examine the distribution of bowel, breast and prostate cancer test use by place of birth and years since migration in a large population-based cohort study in Australia. METHODS In 20...