In pituitary apoplexy, the main initial problem is a lack of secretion of adrenocorticotropic hormone (ACTH, corticotropin), which stimulates the secretion of cortisol by the adrenal gland. This occurs in 70% of those with pituitary apoplexy.
DEFINITION of 'Net Present Value Rule'. A rule stating that an investment should be accepted if its net present value is greater than zero and rejected otherwise.According to the theory of net present value (NPV), participating in a positive NPV project will increase firm or shareholder wealth. rule stating that an investment should be accepted if its net present value is greater than zero and rejected otherwise.
In general, a net operating loss (NOL) is the amount by which a taxpayerâs business deductions exceed his or her business gross income (Sec. 172(c)). An NOL from a given tax year can be carried back and carried forward to other tax years and deducted against the taxpayerâs gross income in those years.