Unexpected agency on the threshold: Asylum seekers narrating from an asylum seeker centre.

Several studies have described the condition of asylum seekers as being or . Victor Turner's concept of and Agamben's have been used extensively to analyse this condition, mostly to show the negative implications of the ambiguous legal (non-) status. This article argues that the condition of liminality provides an intensified doubleness of impossibility and possibility for action, which casts a different light on conceptualizing agency.

Long-term storage and safe retrieval of DNA from microorganisms for molecular analysis using FTA matrix cards.

We assessed the potential use of Whatman FTA paper as a device for archiving and long-term storage of bacterial cell suspensions of over 400 bacterial strains representing 61 genera, the molecular applications of immobilised DNA on FTA paper, and tested its microbial inactivation properties. The FTA paper extracted bacterial DNA is of sufficiently high quality to successfully carryout the molecular detection of several key genes including 16S rRNA, esp (Enterococcus surface protein), Bft (Bacteroides fragilis enterotoxin) and por (porin protein) by PCR and for DNA fingerprinting by random amplified polymorphic DNA-PCR (RAPD-PCR). To test the long-term stability of the FTA immobilised DNA, 100 of the 400 archived bacterial samples were randomly selected following 3 years of storage at ambient temperature and PCR amplification was used to monitor its success.

Microbiological studies of an anaerobic baffled reactor: microbial community characterisation and deactivation of health-related indicator bacteria.

This WRC funded project has studied the appropriateness of the ABR (anaerobic baffled reactor) for on-site primary sanitation in low-income communities. A 3,000 L pilot reactor was located at the Kingsburgh wastewater treatment plant south of Durban, South Africa. Feed to the reactor was raw domestic wastewater containing a significant proportion of particulate organic matter.

Isolation of genomic DNA from blood using a novel filter-based DNA purification technology.

A novel DNA purification technology is described that enables the purification of pure dsDNA from blood. When compared to existing DNA purification methods, the Whatman BioScience Purification System (WBPS) offers a fast and convenient way to recover high yields of DNA. WBPS is based on a unique filter system that entraps DNA within a matrix.

Postembryonic hematopoiesis in Drosophila.

We have investigated the blood cell types present in Drosophila at postembryonic stages and have analysed their modifications during development and under immune conditions. The anterior lobes of the larval hematopoietic organ or lymph gland contain numerous active secretory cells, plasmatocytes, few crystal cells, and a number of undifferentiated prohemocytes. The posterior lobes contain essentially prohemocytes.