Publications by authors named "Helen E Green"
Article Synopsis
- The Cradle of Humankind in South Africa contains significant fossil remains from early human ancestors, but disputes over their ages complicate research on human evolution.
- Uranium-lead analyses of cave flowstones present an opportunity to establish a reliable timeline, revealing major wet periods between 3.2 and 1.3 million years ago, which correlate with periods of enhanced flowstone growth.
- The study suggests that drier intervals favored the accumulation of fossils in open caves, therefore skewing our understanding of hominin development and their habitat preferences in relation to climate changes.
Aim: To debate the definition and use of theoretical and conceptual frameworks in qualitative research.
Background: There is a paucity of literature to help the novice researcher to understand what theoretical and conceptual frameworks are and how they should be used. This paper acknowledges the interchangeable usage of these terms and researchers' confusion about the differences between the two.
The demand for high-throughput DNA profiling has increased with the introduction of national DNA databases and has led to the development of automated methods of short tandem repeat (STR) profile production; however, a potential bottleneck still exists at the gel electrophoresis stage. Capillary electrophoresis sequencers capable of processing 96 samples with considerably reduced manual intervention are now available. In this paper, we compare the ABI Prism 377 slab-gel sequencer currently used by the Forensic Science Service with three leading capillary array electrophoresis instruments: the ABI Prism 3700, the Amersham MegaBACE 1000 and the 16-capillary ABI Prism 3100.
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