Double replica electroblotting for the simultaneous phenotyping of C6 and C7, and its application to the examination of bloodstains

A new reliable and reproducible technique for the simultaneous determination of C6 and C7 types is presented, which employs double replica electroblotting after isoelectric focusing. It permitted clear discrimination of both C6 and C7 components, and the patterns were nearly comparable to those demonstrated separately. The population data obtained by this new technique fitted the genetic hypothesis. The present double replica electroblotting method was successfully applied to the combined phenotyping of C6 and C7 from bloodstains which were stored at room temperature for up to 4 weeks. The method is quite suitable for medicolegal examination of bloodstains particularly for the saving in the amount of sample.     

Poisoning by toxic plants in China. Report of 19 autopsy cases

In this article, we report on 19 autopsy cases in China in which the cause of death was poisoning by toxic plants. The emphasis is on analyses of the target organs or tissues affected by these plants. The mechanism of poisoning and cause of death are approached on the basis of the pathologic changes, and associated problems relating to forensic medicine are discussed.     

Identification of human urinary stains by the quotient uric acid/urea nitrogen

Uric acid (UA) and urea nitrogen (UN) were determined in urinary stains and the UA/UN x 20 values were calculated. The values in human urinary stains were 1.11-4.21, while those in other mammals except some of chimpanzees, were under 0.7, and those in fecal stains of birds were over 80. Most of the stains of other human body fluids or plant juices tested contained neither UA nor UN, and some contained one, but never the other. Ascorbic acid (AS) of up to 100 mg/dl in urine did not interfere with UA determination when dried human urinary stains were analyzed. It was also found that the contents of UA were very low at the peripheral parts of urinary stains. The present results indicate that the quotient UA/UN is useful for identification of human urinary stains in forensic practice provided that the peripheral part of the stain is not used.     

Hair analysis for drug abuse, Part II. Hair analysis for monitoring of methamphetamine abuse by isotope dilution gas chromatography/mass spectrometry

Sectional analysis of methamphetamine abuser's hair was performed by using stable-isotope dilution GC/MS method. Drug concentrations of hair shaft cut into 2-cm sections from the root side were compared with the self-reported drug histories of 11 cases and the results of experiments on monkeys. It was found that in nine of the 11 cases, the relationship between the results of sectional analysis and drug histories coincided, but the sectional analyses of two cases were not consistent with self-reported drug history. The difference in drug concentrations between the regions of scalp hair was also investigated. Our study suggests that hair analysis, especially sectional analysis, may be useful in determining past drug history even though it is not exact.     

Public choice in private markets

He has written widely on social and economic issues.     

The 2001 “spy” plane incident revisited: the Chinese perspective

The 2001 “spy” plane incident was probably the most serious military incident in Sino-American relations since the 1970s, and it generated a crisis in the already brittle relationship since the new Bush administration came into office. This article attempts to revisit this incident from the Chinese perspective and provides some insight into the understanding of the Chinese foreign policy behavior and position on Sino-American relations. It presents the respective arguments concerning the responsibilities of the incident, explores the Chinese historical memory of US hegemonic behavior, and examines the Chinese perspective and attitude towards the incident and their causes through a study of the reactions of the Chinese government and the Chinese people to the incident.¹ He is the founding editor of theHong Kong Journal of Social Sciences and theJournal of Comparative Asian Development. He is also Guest Lecturer at the School of Government, Zhongshan University in Guangzhou, China. The author wishes to thank anonymous reveiwers for their helpful comments made on earlier drafts of this paper.     

Direct fluorometric determination of cyanide in human materials

A detailed procedure of a new simple fluorometric assay for cyanide in human blood, stomach contents and urine is presented. This method requires neither diffusion nor distillation of cyanide from samples; small amounts of the samples were directly added to incubation mixtures, which were then heated at 80 °C for 45 min and acidified for fluorescence measurements. Our method is much more rapid than the previous ones. Some data are presented on specificity and sensitivity of the present method.     

Local modernization and crime

This paper examines the impact of industrialization and urbanization on criminal behavior in Middletown during the period between 1845 and 1910. It was this period which demonstrated the most rapid growth and change in the community and which turned Middletown from a pioneer settlement to a modest industrial city. The authors test five hypotheses relating to the relationship of the modermization process to changes in the rates of crime. Data for this study were drawn from official records of the county and city courts with criminal jurisdiction.