LD50 redirects here. For other uses, see LD50 (disambiguation) . In toxicology, the median lethal dose, LD50 (abbreviation for  lethal dose, 50%), LC50 (lethal concentration, 50%) or LCt50 is a measure of the lethal dose of a toxin, radiation, or pathogen.
In an employee-initiated review system, employees are informed that they can ask for a review from their manager. This type of on-demand appraisal is not meant to replace a conventional review process. Rather, it can be used to promote an attitude of self-management among workers.f a small business uses merit-based increases, the appraisal form would include a rating of the employee on certain tasks. If skill-based pay is used, the appraisal would list skills acquired and level of competency.
Appraisal/Evaluation management is when an individual or group employs Licensed, Certified and General appraisers to fulfill real estate appraisal assignments, and qualified real estate professionals to fulfill evaluation assignments, on behalf of the mortgage lender.eeting Federal requirements is the primary reason community banks start considering an appraisal management company, but a second and ever more important reason, is that the community bank or credit union saves money on every transaction.