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In computer science, Backus–Naur form (BNF; / ˌ b æ k ə s ˈ n aʊər /; Backus normal form) is a notation used to describe the syntax of programming languages or other formal languages. It was developed by John Backus and Peter Naur. BNF can be described as a metasyntax notation for context-free grammars. Backus–Naur form is applied ...
The British National Formulary (BNF) is a United Kingdom (UK) pharmaceutical reference book that contains a wide spectrum of information and advice on prescribing and pharmacology, along with specific facts and details about many medicines available on the UK National Health Service (NHS).
This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes).This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those).
BNF may refer to: Science. Backus–Naur form, a formal grammar notation in computer science; Biological nitrogen fixation; British National Formulary, a drug ...
The two main reference sources providing this information are the British National Formulary (BNF) and the Drug Tariff. There is a section in the Drug Tariff, known unofficially as the " Blacklist ", detailing medicines which are not to be prescribed under the NHS and must be paid for privately by the patient.
Some of the widely used formal metalanguages for computer languages are Backus–Naur form (BNF), extended Backus–Naur form (EBNF), Wirth syntax notation (WSN), and augmented Backus–Naur form (ABNF). Metalanguages have their own metasyntax each composed of terminal symbols, nonterminal symbols, and metasymbols. A terminal symbol, such as a ...
The Bibliothèque nationale de France (French: [biblijɔtɛk nɑsjɔnal də fʁɑ̃s]; 'National Library of France'; BnF) is the national library of France, located in Paris on two main sites, Richelieu and François-Mitterrand. It is the national repository of all that is published in France.
The BNF for Children developed from the British National Formulary (BNF), which prior to 2005 had provided information on the treatment of children, with the doses largely determined by calculations based on the body weight of the child. The guidance was provided by pharmacists and doctors whose expertise was in the care of adults.