Bending the Curve: Institutional Factors Associated with Graduation Rates.

For decades, educators and policy makers have decried low graduation rates at U.S. colleges, advocating policies and making investments to improve graduation.

Influence of form and quantity of chromium on the development and survival of two silkworm (Bombyx mori L.) races.

Growth inhibitory activity has proven important in Qiufeng x Baiyu and Qingsong x Haoyue silkworm larvae. The consumption of mulberry leaves was reduced in both silkworm races while Qiufeng x Baiyu larvae showed the higher reduction in leaf consumption. From the results obtained, it was revealed that even at low concentrations of 400 mg/L of either Cr(III) or Cr(VI) ions, growth of Qiufeng x Baiyu and Qingsong x Haoyue was significantly depressed.