Given the uncertainty in energy markets, I believe oilfield services investors should concentrate on quality and profitability. 58 oilfield services equities were screened for profitability based on ...

The classic sparse matrix screen based on Jancaric and Kim (1991) and modified by . Samples salts, polymers, organics and pH (see . Helsinki Random II A combined sparse matrix and incomplete factorial ...

Leaks about the new Lana Wachowski film have, thankfully, been kept to a minimum, so any word on the officially untitled sequel is being met with feverish excitement by fans. However, a regular test ...