Viewpoint: Chinese Anti-Satellite Weapons: New Power Geometry and New Legal Policy

China entered the field of space weapons with the successful anti-satellite test on 11 January 2007. National policies of spacefaring states commit to the principle of peaceful uses of outer space as enshrined in the Outer Space Treaty, but there is no detailed internationally binding regulation on anti-satellite weapons. Since 1981, the United Nations General Assembly passed annual resolutions on the Prevention of an Arms Race in Outer Space. These resolutions call for negotiations in the Conference of Disarmament for establishing an internationally binding instrument about space weapons. However, the Conference of Disarmament is deadlocked. China's weapons test has changed the power geometry. This paper examines the policy impact of the Chinese test, especially on the United States.     

Mathias Kifmann on “health insurance in a democracy: Why is it public and why are premiums income related?”

Many democracies have public health insurance systems that are tax-financed or in which contributions are linked to income. In a recent issue of this journal, Mathias Kifmann provides a model designed to explain this intriguing observation. This comment argues that the suggested explanation is not really convincing.     

The Democratic Quality of Institutional Regimes: a Conceptual Framework

Lijphart's spectrum of democracies – recently expanded by Jack Nagel to a sub-majoritarian sphere of pluralitarian systems which use disproportional electoral systems in order to manufacture majority governments from minorities in the electorate – is based on only one dimension: inclusion of preferences. Political scientists in the Lijphartian tradition wrongly assume that inclusion of preferences, which is an input characteristic, automatically leads to responsiveness, which refers to actual policy decisions and hence is an output characteristic. We therefore add 'responsibility' as a second input characteristic and employ it alongside the inclusiveness of institutional regimes. We argue that in representative democracies there exists a trade-off between inclusiveness and responsibility. This trade-off helps us to measure the democratic quality of institutional regimes. The now expanded spectrum of democracies based on these two dimensions shows that majoritarian democracy proper – in which governments represent a majority of individual preferences but not more than necessary – is the best possible combination of the two democratic values.     

Molecular study of time dependent changes in DNA stability in soil buried skeletal residues

Stamp marks are used as a unique identification for a range of items, but these can be erased for criminal activities. Erased marks can sometimes be recovered by etching or magnetic means. The present study looked at the application of Fry's reagent to recover erased marks from steel. The investigation also demonstrated that Fry's reagent can deteriorate on storing and will require a longer etching time. The effect of different applied forces of stamping was investigated, and the depth of the underlying deformation was determined by etching after varying degrees of metal removal. The amount of metal needing to be removed depends on the force applied to the die. Metal removal also affects the time needed for recovery. The underlying structural change remains as a hidden identification mark, and could potentially be used by manufacturers as an unseen identifier. A model for the underlying deformation is proposed.     

Stable isotope analysis of human hair and nail samples: the effects of storage on samples

When submitting samples for analysis, maintaining sample integrity is essential. Appropriate packaging must be used to prevent damage, contamination or loss of sample. This is particularly important for stable isotope analysis by isotope ratio mass spectrometry as this technique is capable of detecting subtle differences in isotopic composition with great precision. In a novel study, scalp hair and fingernail samples were placed in five different types of packaging, routinely used in forensic laboratories and stored for 6 weeks and 6 months. Samples were subsequently cleaned and submitted for (13)C/(12)C, (15)N/(14)N, (2)H/(1)H and (18)O/(16)O analysis. Results from (13)C analysis indicate that type of packaging can cause slight changes in (13)C abundance over time. Differences were noted in the (15)N isotope signatures of both hair and nail samples after 6-week storage, but not after 6 months. This apparent discrepancy could be a result of the packaging not being properly sealed in the 6 weeks study. Fewer differences were noted when analyzing samples for (2)H and (18)O abundance.