If you work with strings in your Python scripts and you're writing obscure logic to process them, then you need to look into ...

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 ...

An integral process for utility steam generating systems, including the heat recovery steam generators (HRSGs) of combined cycle power plants, is condensation of the turbine exhaust steam for return ...

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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Ankylosing spondylitis (AS) flare-ups can be either local, affecting only one or two areas, or general, impacting the entire body. Common symptoms of flare-ups include lower back, hip, and buttock ...

You can exercise at home without any equipment by practicing yoga poses and strength training exercises that use your body weight for resistance. At-home workouts that focus on body weight exercises ...