Bioidentical hormone preparations are medications that contain hormones that are an exact chemical match to those made naturally by humans, says Manson, who is chief of preventive medicine at Brigham and Women's Hospital in Boston and the Elizabeth F. Brigham Professor of Women's Health at Harvard Medical School.infrey isn't recommending bioidentical hormones for every menopausal woman. Instead, she urges women to take charge of your health and says it's time to start the conversation about menopause and bioidentical hormones.
Thus, a tree network is a bus network of star networks. Logical (or signal) topology refers to the nature of the paths the signals follow from node to node. In many instances, the logical topology is the same as the physical topology. But this is not always the case.
Network topology is the geometric arrangement of nodes and cable links in a LAN. Two general configurations are used, bus and star. These two topologies define how nodes are connected to one another in a communication network. A node is an active device connected to the network, such as a computer or a printer. A node can also be a piece of networking equipment such as a hub, switch or a router.