Israels & Neuman, PLC Investigates Investment Losses Caused by Stifel Nicholas Brokers Selling Stock in Quantum Fuels a/k/a Quantum Fuel Systems Technologies Worldwide, Inc. (NASDAQ: QTWW). FOR IMMIATE RELEASE Israels & Neuman, PLC announces that it has launched an investigation in Stifel Nicolas and its sales of Quantum Fuels a/k/a Quantum Fuel Systems Technologies Worldwide, ...