1999 UNAM strike council of the university, which includes faculty and students, modified the proposal to make the tuition increase voluntary. Barnés declared that the conscience of each student would dictate who would pay increased tuition and who would not. Strikers grew increasingly belligerent and had violent altercations with students who were still attempting to enter the campus to try to resume classes. Meanwhile, UNAM issued multiple warrants against strikers who were accused of stealing computers, vehicles and earthquake monitoring equipment. The strikers took advantage of the situation to resist additional graduation requirements such as tougher examinations and time limits for graduation. When
Mario de la Cueva textbooks across Latin America. Infused with the spirit of the Mexican Revolution of 1910, they conceptualized Mexican labour law as having the protection of workers' rights as its chief purpose. De la Cueva was also a leading advisor in the 1970 revision of the Mexican Labour Code. Mario de la Cueva Mario de la Cueva y de la Rosa (1901-1981) was a Mexican jurist and rector of the Universidad Nacional Autónoma de México (UNAM) in 1940–1942. De la Cueva studied law at the Escuela Nacional de Jurisprudencia of the UNAM, as well as at the Humboldt-Universität in Berlin. From 1929