Ammonium, Nitrate, and Phosphate Sorption to and Solute Leaching from Biochars Prepared from Corn Stover ( L.) and Oak Wood ( spp.).

Biochar (BC) was evaluated for nitrogen (N) and phosphorus (P) removal from aqueous solution to quantify its nutrient pollution mitigation potential in agroecosystems. Sorption isotherms were prepared for solutions of ammonium (NH), nitrate (NO), and phosphate (PO-P) using BC of corn ( L.) and oak ( spp.

The influence of paid work, race-ethnicity, and immigrant status on health care coverage after welfare reform in Hennepin County, Minnesota.

A random sample of 84 past and present Temporary Assistance to Needy Families recipients in Hennepin County, Minnesota, were interviewed regarding their health care coverage and corresponding work histories over a 42-month period. Diverse racial-ethnic and immigrant groups of color were oversampled. A life history calendar technique and supplementary interview questions were utilized.