Previous chest radiation

Women who menstruate at an early age and menopause at a later age are likely to develop breast cancer (American Cancer Society, n. pag). This can be associated with the longer exposure to estrogen and progesterone hormones. Women who had undergone a radiation therapy on the chest area at an early age can significantly increase the risk for breast cancer, especially if the breasts are still developing when the therapy was taken (American Cancer Society, n. pag. ). Stages Breast cancer, as other kind of cancer, starts from a single dot that develops into a threatening stage when it is not detected and treated at an earliest time.

Local area Network

The 802. 11 protocol is defined for a wireless LAN (Local Area Network) and is based on a cellular architecture in which the network is divided into cells where each cell (called a Basic Service Cell (BSS)) is controlled by a base station called an Access Point (AP). The basic access mechanism implemented in the protocol is a Carrier Sence Multiple Access with Collision Avoidance (CSMA/CA). The CSMA protocol works as follows: if a station wishes to transmit information through it network, it senses the medium.