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50:52 Lecture14Zoom Lecture14Zoom	Lecture14Zoom cells cell antigen receptor plasma antibodies affinity helper surface antigens zone leaf activation igm receptors pathogen antibody sites node igg From Alicia Werner 0 likes 26 plays 0
48:48 Lecture13Zoom Lecture13Zoom	Lecture13Zoom cells cell antigen effector receptor cytokines response infection target memory apoptosis helper il-2 activation virus macrophages cd4 pathogen bacteria differentiation From Alicia Werner 0 likes 18 plays 0
01:03:13 ECS 235B, Winter 2021; Lecture #2; January 6, 2021 ECS 235B, Winter 2021; Lecture #2; January 6, 2021	ECS 235B, Winter 2021; Lecture #2; January 6, 2021 Foundations of Computer and Information Security. This covers access control matrices, primitive operations, commands, and miscellaneous rights and principles. The class starts at 6:53 into the video. object matrix commands command operations helper access column copy permission control flag rows row kernel procedure things question owner operation From Matthew Bishop 0 likes 48 plays 0