Organ-on-a-chip a biochip has been created by researchers at cellasys. Researchers are working towards building a multi-channel 3D microfluidic cell culture system that compartmentalizes microenvironments in which 3D cellular aggregates are cultured to mimic multiple organs in the body. Most organ-on-a-chip models today only culture one cell type, so even though they may be valid models for studying whole organ functions, the systemic effect of a drug on the human body is not verified. In particular, an integrated cell culture analog (µCCA) was developed and included lung cells, drug-metabolizing liver and fat cells. The cells were linked in a 2D fluidic
Protocol Relating to the Status of Refugees the temporal and geographic restrictions. This was needed in the historical context of refugee flows resulting from decolonisation. However, the Protocol gave those states which had previously ratified the 1951 Convention and chosen to use the geographically restricted definition the option to retain that restriction. Protocol Relating to the Status of Refugees The Protocol Relating to the Status of Refugees is a key treaty in international refugee law. It entered into force on 4 October 1967, and 146 countries are parties. Where the 1951 United Nations Convention Relating to the Status of Refugees had restricted refugee status to those whose