A classifier for the SNP-based inference of ancestry

Ancestral inference from DNA could serve as an important adjunct for both standard and future human identity testing procedures. However, current STR methods for the inference of ancestral affiliation have inherent statistical and technical limitations. In an effort to identify bi-allelic markers that can be used to infer ancestral affiliation from DNA, we screened 211 SNPs in the human pigmentation and xenobiotic metabolism genes. Allele frequencies of 56 SNPs (most from pigmentation genes) were dramatically different between groups of unrelated individuals of Asian, African, and European descent, and both observed and simulated log likelihood ratios revealed that the markers were of exceptional value for ancestral inference. Log likelihood ratios of the multilocus estimates of biological ancestry (EAE/EBA) ranged from 7 to 10, which are on par with the best of the STR batteries yet described. A linear classification method was developed for incorporating these SNPs into a classifier model that was 99, 98, and 100% accurate for identifying individuals of European, African, and Asian descent, respectively. The methods and markers we describe are therefore an important first step for the development of a practical multiplex test for the inference of ancestry in a forensics setting.     

Ethics,Justice, and Suffering in the Thought of Levinas: The Problem of the Passage

Emmanuel Levinas is the philosopherof suffering as such: a suffering withoutregard for its causes and justifications thatis manifested to the I in its encounter,``beyond being', with the face of the Other. ``Ethics as first philosophy', however,subsequently passes over to justice in Levinas'thought, and this means that it passes througha violence that is very much in being. The movement from ethics to justice revealswhat this essay calls ``the problem of thepassage'. Using the thought of Levinas as itspoint of departure, the essay attempts touncover this problem in all of its profundity. A characteristic of all thinking in the Westernphilosophical tradition, the passage fromA to B is best understood as a mode ofthinking that clings to the passage assuch – in the form of ``A B' – as itsown special way of persisting in being. At thesame time, however, this means that ethicscannot support or comfort justice withoutdevouring itself, which is to say the self that both ethics and justice seem torequire.     

The attack of the clones: patent law and stem cell research

This article considers the integral role played by patent law in respect of stem cell research. It highlights concerns about commercialization, access to essential medicines and bioethics. The article maintains that there is a fundamental ambiguity in the Patents Act 1990 (Cth) as to whether stem cell research is patentable subject matter. There is a need to revise the legislation in light of the establishment of the National Stem Cell Centre and the passing of the Research Involving Embryos Act 2002 (Cth). The article raises concerns about the strong patent protection secured by the Wisconsin Alumni Research Foundation and Geron Corporation in respect of stem cell research in the United States. It contends that a number of legal reforms could safeguard access to stem cell lines, and resulting drugs and therapies. Finally, this article explores how ethical concerns are addressed within the framework of the European Biotechnology Directive. It examines the decision of the European Patent Office in relation to the so-called "Edinburgh patent", and the inquiry of the European Group on Ethics in Science and New Technologies into "The Ethical Aspects of Patenting Involving Human Stem Cells".     

Intersection of 21st century technology with 20th century laws: a case study in proactive issues management

The intersection of a high‐tech product with 20th century laws that would have inadvertently restricted its use provides an interesting case study in issues management. The authors describe how using ‘high‐tech?high‐touch’ as a technique for public policy change, as well as employing other traditional issues management tools, enabled significant success in achieving the company's public policy goals. As a result of this proactive issues management approach, the high‐tech Segway^TM Human Transporter (HT), a low‐speed self‐balancing, electrically powered, two‐wheeled personal mobility device (Figure 1) is permitted to operate freely in a significant part of its potential market area. Copyright © 2003 Henry Stewart Publications