Example sentences of "are [adv] essential for [adj] " in BNC.

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1 The drug pictures ( the totality of the symptoms ) which are so essential for homoeopathic prescribing are not a part of herbal lore .
2 By introducing rat genes encoding the MHC-linked transporters into a human cell line lacking both transporter and proteasome subunit genes , we show here that the MHC-encoded proteasome subunits are not essential for stable MHC class I surface expression , or for processing and presentation of antigenic peptides from influenza virus and an intracellular protein .
3 This result demonstrates that HS1 and HS2 are not essential for neural specific expression of the HNF-L gene .
4 Political stability plus appropriate tax and expenditure policies are also essential for stable economic growth .
5 These are absolutely essential for any sort of lighting scheme that involves spot or floorlights .
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