1 Click Start, click Run, type appwiz.cpl, and then click OK. 2  Click to select the Show updates check box. 3  In the Currently installed programs list, click Windows PowerShell(TM) 1.0, and then click Remove.4  Follow the instructions to remove the following entry: . Click Start, click Run, type appwiz.cpl, and then click OK. 2  Click to select the Show updates check box. 3  In the Currently installed programs and updates list, locate the entry for the hotfix that installed Windows PowerShell 1.0.
The studies assumed the label Hawthorne experiments or studies from the location of the Western Electric plant. Concluded by 1932, the Hawthorne studies, with emphasis on a new interpretation of group behavior, were the basis for the school of human relations.
Medical research studies involving people are called clinical trials. They are divided into different stages, called phases. The earliest phase trials may look at whether a drug is safe or the side effects it causes. A later phase trial aims to test whether a new treatment is better than existing treatments. We have more information about the phases of trials.