Application of cytochrome b DNA sequences for the authentication of endangered snake species

In order to enforce the conservation program and curbing the illegal trading and consumption of endangered snake species, the value of cytochrome b sequence in the authentication of snake species was evaluated. As an illustration, DNA was extracted, selected cytochrome b DNA sequences amplified and sequenced from six snakes commonly consumed in Hong Kong. Cataloging with sequences available in public, a cytochrome b database containing 90 species of snakes was constructed. In this database, sequence homology between snakes ranged from 70.68 to 95.11%. On the other hand, intraspecific variation of three tested snakes was 0-0.98%. Using the database, we were able to determine the identity of six meat samples confiscated by the Agriculture, Fisheries and Conservation Department, HKSAR.     

Does investing in identity work? An examination of the ethnocentric social capital theory from an oriental perspective

The central thrust of this paper questions the notion of ‘investing in identity’ in the current approach to social capital, and challenges the assumption that the poor can draw upon their identities as productive resources to alleviate poverty. This paper argues that the mainstream social capital model is largely based on the economic model of rationality, which assumes that individuals are rational, and consciously construct social identities with purposive reasons. This perspective, however, neglects agency, subjectivity and the power dimension in the process of identity building. This paper also questions the ethnocentric nature of social capital thinking which plays down the influences of culture and context. Drawing upon the structuration theory of Anthony Giddens, and based on my ethnographic research on Chinese migrants in Hong Kong, I challenge the ‘Hong Kong-derived Chinese identity model’ by Gregory Guldin. Using the concept of ‘acknowledgeable agents’, I argue that the construction of ethnic identity amongst migrants is far more complicated, and agents may use their hyphenated identities to seek room for manoeuvre. I also highlight the transformative, fluid and fragile nature of identity to suggest that he notion of ‘investing in identity’ is problematic because which and what identities, and where and how to invest, are not properly addressed. Taking agents’ subjectivity into account, disinvestment, rather than investment, in identity may be a more desirable livelihood strategy adopted by migrants. Finally, I draw attention to the dark sides of identity, and point out that without a clear understanding of the existing structures of interaction, investing in identity may result in poverty aggravation and further exclusion of the poor.The writer is currently an assistant lecturer at the University of Bradford, UK.     

School bullying and tackling strategies in Hong Kong

In view of the rising problem of school bullying in Hong Kong, scholars have endeavored to study the prevalence, causes, and tackling strategies of school bullying. This article highlights some typical incidences of school violence and reports research results of school bullying. It is noted unresolved school bullying problems are often a precursor of school violence and delinquency. Based on results from local studies of bullying, this article identifies risk and protective factors that contribute to the emergence and continuation of the bullyvictim problem in Hong Kong. The article argues that suppressive tactics, such as reprimanding bullies, calling parents to school, and suspension, are ineffective. Other than suppressive tactics, adopting a comprehensive antibullying strategy such as assisting students to develop adequate self-competency, strong social skills, and good relationships with parents and teachers seems to be a useful antiviolence strategy.     

Allele frequencies and haplotypes of 12 Y-STR loci for the local Chinese population in Hong Kong

Haplotype frequencies were established for 12 Y-chromosome STR loci, including all loci recommended by Scientific Working Group on DNA Analysis Methods Y-STR Subcommittee (DYS391, DYS389I/II, DYS439, DYS393, DYS390, DYS385a/b, DYS438, DYS19 and DYS392) plus DYS437, in the local Chinese population in Hong Kong. In a sample of 481 unrelated males, it was possible to define 424 different haplotypes of which 388 were unique, 26 was found in two individuals, 2 were shared in three individuals, 5 were shared in four individuals and 3 were shared in five individuals. The allele diversity values for each locus ranged from 0.4273 (DYS438) to 0.9555 (DYS385a/b). The observed haplotype diversity value and discrimination capacity were 0.9992 and 0.8815, respectively. In a genetic study of these unrelated males, triple alleles were found at the DYS358 locus in six individuals. The combined Y-chromosome STR polymorphisms provide a powerful discrimination tool for routine forensic applications.     

Cohabitation and the Law Commission’s Project

In 2004, the U.K. parliament passed the Civil Partnership Act which provides a scheme to enable same-sex couples to obtain formal recognition of their relationships through the registration of a civil partnership. When the Civil Partnership Bill was making its way through parliament, attempts were made in the House of Lords to derail the Bill through amendments seeking to extend the Bill to certain familial relationships of care and support. In order to counter these attempts and to facilitate the removal of the amendments, the government gave the assurance that the matter of the economically vulnerable cohabitant would be referred back to the Law Commission for England and Wales for review. Consequently, in July 2005, the Law Commission commenced its project on cohabitation. This paper seeks to examine models of reform (such as the one proposed by the Law Society of England and Wales in its 2002 Cohabitation report) as well as those introduced in other Commonwealth countries. The aim is to identify some of the crucial questions that the Law Commission will need to give careful consideration to if they are to make recommendations that will provide a more radical approach to this area of the law, rather than adopt the more conservative approach of including cohabitation in ‘piggy back’ mode on the marriage model.