Academic activities were on Monday temporarily disrupted in University of Abuja as the Senior Staff Association of Nigerian Universities, SSANU and the Non-Academic Staff Union of Educational and Associated Institutions, NASU, commenced a seven-day warning strike. NAN reports that the protesting workers blocked the entrance to the university, preventing students and others from going inside. Mr Nureden Yusuf, SSANU Branch Chairman, while addressing newsmen, said the strike was to protest their four months withheld salaries. According to Yusuf, the unions were on strike to draw the attention of…