These are the formal rules for forming basic UNIX regular expressions. For some simple examples, skip to Simple Examples. The rules come from the Solaris 7 regexp(5) manual page. The I2A2 reflector ...

Gerry Baker is Editor at Large of The Wall Street Journal. He writes a weekly column for the editorial page of The Journal each Tuesday on politics, economics and culture. Mr. Baker also writes a ...

Gene expression is the generation of a functional gene product from the information encoded by a gene, through the processes of transcription and translation. Gene products are often proteins, however ...

Expression systems are genetic constructs (a gene encoded by DNA) that are designed to produce a protein, or an RNA (ribonucleic acid), either inside or outside a cell. Expression systems are used in ...

To those who think the practice of reading tarot is an occult art reserved for spook sessions, let’s get this out of the way: It isn’t. Like therapy, meditation, and advice from friends, tarot is ...