The conservative daily newspaper Kayhan, which is close to Mr. Ahmadinejad, supported the closing of Kargozaran and called for more pressure on students. And in another clear signal to activists, some 150 radical students demonstrated outside the house of Shirin Ebadi, the human rights lawyer and Nobel Peace Prize laureate, on Thursday, accusing her of supporting the killing of Palestinians in Gaza. Ms. Ebadi had issued a statement condemning the killing of civilians two days earlier. The demonstrators scrawled graffiti on the walls suggesting she was an American spy, and ripped down the sign for her law office, which is in the same building.Last month, government officials shut down the group she founded, the Center for Defenders of Human Rights, and last week they raided her office, taking her computers and files. Ms. Ebadi has received death threats in the past but this was the first time that authorities had taken action against her.