An electron microscope is a microscope that uses beams of electrons instead of rays of visible light to form highly magnified images of tiny areas materials or biological specimens. Comparing light vs electron microscopes is made more complicated by the fact that there are different types of electron microscopes.
1 Apply the authorization settings needed for your site or application, and then click OK. 2  For example: 3  Note: To edit or delete an existing rule, select the rule in the Authorization rules pane, and then click Edit... or Remove in the Actions pane.4  If you click Edit...indows 8 or Windows 8.1. 1  On the Start screen, move the pointer all the way to the lower left corner, right-click the Start button, and then click Control Panel. 2  In Control Panel, click Programs and Features, and then click Turn Windows features on or off.
1 Right-click the folder you want to secure (for example, Accounting), and then click Properties. 2  Click the Security tab, and then click to clear the Allow inheritable permissions from parent to propagate to this object check box. 3  In the Security dialog box, click Copy. To add a set of permissions, in the Properties dialog box, on the Security tab, click Add. 2  In the Select Users, Computers, or Groups dialog box, double-click the appropriate user accounts or groups. 3  When you have selected all of the users and groups to which you want to assign permissions, click OK.