Scientific Aspects and Bioethical Considerations Pontifical Academy for Life. The demand for more information on the bioethical debate on the human embryo continues to build. This booklet responds with a “primary synthesis” document following the XIIth Assembly of the Pontifical Academy for Life’s Scientific Congress held on the 27 and 28 February, 2006: “The Human Embryo in Its Pre-Implantation Phase”. It is essential for those who need to glean the essential components of the debate, and to respond to the duty of informing a wider public.