Frederick W. Taylor's research led to the emergence of scientific management, which is defined as a. the application of scientific principles to the management of work and workers. b. researching optimal tools for motivating employees. c. eliminating waste and inefficiency at work. d. using the workplace to conduct scientific research on human behavior. e. the study of management using a scientific approach.

A.the application of scientific principles to the management of work and workers.

Explanation:

Scientific management is the application of science to a management process. Science, harmony, cooperation and optimal development of workers are the basic principles of scientific management. It helps in increased productivity and efficiency with its systematic techniques.

there are treatment options for depression (mdd) that may work for you. one way of treating depression may be to affect the levels of certain chemicals that brain cells use to communicate, called neurotransmitters. scientists believe that certain neurotransmitters may be out of balance in depression.

although the exact way depression medications shown to ease overall depression symptoms in some people work is unknown, scientists think that some medications work by affecting the levels of a neurotransmitter called serotonin in the brain. other treatments work by affecting the levels of other neurotransmitters like norepinephrine or dopamine.