$18,750 unfavorable variable overhead spending variance = $360,000 â $341,250. Variance is unfavorable because the actual variable overhead costs are higher than the expected costs given actual hours of 97,500. $68,250 unfavorable variable overhead efficiency variance = $341,250 â $273,000.
The regulatory T cells (Tregs pronunciation: /ËtiËrÉÉ¡/), formerly known as suppressor T cells, are a subpopulation of T cells which modulate the immune system, maintain tolerance to self-antigens, and prevent autoimmune disease.
There are two basic types of T lymphocytes: T-helper cells (CD4+ cells) and T-cytotoxic cells (CD8+ cells). When activated, the T-cytotoxic cells can eliminate the host cells that are infected with virus, Mycobacteria, certain intracellular bacteria, fungi, parasites, and tumor cells.