$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 function of cytotoxic T cells, also called killer T cells or cytotoxic T lymphocytes, is to protect the body from disease and infection. They do so by killing diseased cells. T cells are white blood cells that are part are the body's immune system. White blood cells defend your body against disease, cancer, infections and foreign substances.
Th1 and Th17 cells play major roles in autoimmunity, whereas Th2 cells are the hallmark of atopic disease. T regulatory (Treg) cells represent a major subset of CD4+ T cells that may be involved in regulating and attenuating the activity of the three T helper subsets.