A New Hampshire woman accused of starving a young boy under her care is on trial in Dover. Christina Thomas, 33, of New Durham, is charged with one count of first-degree assault, alleging that she failed to provide proper nutrition to the developmentally disabled boy, now 9. Prosecutors say the abuse happened between 2006 and 2010. Thomas’s mother, Peggy Starr, is scheduled to go on trial in April on a charge of second-degree assault related to the child. On Tuesday, staff at the New Durham School, which the boy attended, testified that they were instructed to take away a carrot from the boy’s lunch every time he acted out.