Auctioned oil import licenses

Three times in recent years American Presidents have tried to levy a tax on imported oil in order to decrease the quantity. Three times, the U.S. Congress has blocked the policy, demonstrating that a tax is politically infeasible. As an alternative, we propose an auctioned import license policy, in which the President would have discretion over the quantity of petroleum sold each month. The quantity might be chosen to maintain a certain differential between the domestic and international prices of oil. Under this strategy, licenses would have economic characteristics very similar to those of a tax. The political characteristics, however, would be quite different. Sections of the public would be less likely to perceive licenses as transferring revenues from households to the government and more likely to perceive them as effective in reducing imports. Alternatively, oil import licenses could be used to negotiate with OPEC and other importing nations.The authors wish to thank William Dunn, Robert Walters, Richard Nehring and Charles Phelps for their helpful comments. The usual caveat applies.     

Lewis typing of human bloodstains by enzyme-linked immunosorbent assay (ELISA) using monoclonal anti-Le(a) and anti-Le(b)

The Lewis blood grouping of human dried bloodstains could be determined by an enzyme-linked immunosorbent assay (ELISA) using monoclonal anti-Le(a) and anti-Le(b) antibodies with an avidin-biotin complex (ABC). The bloodstains aged 1 year were used as samples, and approximately 1 mg of the stains was enough to type each Lewis antigen reliably by this method. The Lewis substances of 106 individual stains were correctly typed regardless of their ABO blood group system.     

Newspaper reporting of suicide cases in Hong Kong

This study addresses the concerns over newspapers' reporting of suicide cases in Hong Kong, SAR (Special Administrative Region), using the WHO guidelines on the reporting of suicide news as a reference for comparison. We compared the official suicide information extracted from the Coroner's Court for the year 2000 with newspaper reports on suicides taken from five major Chinese local newspapers, which accounted for about 80% of the total circulation in Hong Kong. The type of newspaper reporting on suicides was also examined. Newspapers tended to report on those suicide victims who suffered relationship problems, whereas those who had family problems were significantly underreported. Among the suicides reported in the newspapers, 6.2% were found on the front page and the majority of the reports were presented pictorially. The reporting of suicides was selective and the coverage was incomplete, with student suicides reported excessively. The method of reporting for Hong Kong newspapers was not in line with the recommendations of the WHO or international best practices on presenting suicide news. For this reason we recommend a partnership approach with active participation from the media on suicide prevention so that communication professionals can proactively participate in suicide prevention work more effectively.     

A minimally destructive technique for sampling dentin powder for mitochondrial DNA testing

The purpose of this paper is to present the horizontal sectioning technique used by odontologists at the Central Identification Laboratory to sample dentin for mtDNA analysis. From the perspective of DNA testing, anthropologists and odontologists at the Central Identification Laboratory work with ancient remains. In many instances, the lack of comprehensive antemortem records, the potential for fragmentation and commingling, and environmental exposure makes the use of traditional forensic identification techniques difficult or impossible. Teeth are highly resistant to environmental degradation and are an excellent source of mitochondrial DNA (mtDNA). This technique is simple, quick, and relatively conservative, allowing for preservation of the majority of the external portion of the tooth structure.