Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Thomas J. Brock is a CFA and CPA with more than 20 years of ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Ebony Howard is a certified public accountant and a QuickBooks ProAdvisor tax expert. She ...

The performance of proportional valves falls in the wide spectrum between on/off solenoid valves and electrohydraulic servovalves. The valves are termed proportional because output flow is not exactly ...

A proportional solenoid valve is an electromagnetic valve designed to respond to a variable power input to regulate the flow of liquid and/or gas proportionately. It is used to control the flow rate ...

Would proportional representation be a better way of electing legislatures? This old idea, which dates back to John Stuart Mill and Nicolas de Condorcet, has been gaining ground among political ...

Cross-sectional genetic association studies can be analyzed using Cox proportional hazards models with age as time scale, if age at onset of disease is known for the cases and age at data collection ...

You likely pay a version of each on income or goods Reviewed by Lea D. Uradu Fact checked by Vikki Velasquez Tax systems in the U.S. fall into three categories ...

Your quad-copter is hovering nicely 100 feet north of you, its camera pointed exactly on target. The hover is doing so well all the RC transmitter controls are in the neutral position. The wind picks ...

Proportional force is the idea that the force that an officer is supposed to use on a suspect, including the use of chokeholds or other neck restraints, should not be more intense than necessary. By ...

John Stanton has previously received funding from the EC1 New Deal for Communities regeneration programme (2007-2010). The country awoke the morning after the election – if indeed it had slept – to a ...