The F9 lines are a collection of mouse lines which are homoplastic and are characterized by their recruitment of nuclear factors specific to anagen and catagen processes. The F9 lines express characteristics of pre-mice embryo-specific nuclear receptors and have all known biochemical features of early Murine embryos. Injection of genetic factors can initiate induction of differentiation in vitro with the use of fibroblast cells, adult mice and xenografts. Induction of differentiation may be accomplished not only with the use of chemical agents alone but also by the expression of multiple oncogenetically distinct sequences on the Murine embryo.
The primary functions of the F9 mouse keypad are set forth in the literature as data entry and control functions for the computerized mouse. However, the keyboard is not only used for this purpose. The secondary function of the F9 is to perform two additional functions, namely, that of a tactile input device and that of a massaging pressure sensor. In this regard, the press f9 key is located on the lower left-hand corner of the mouse, and the secondary function of the keypad is to depress the appropriate spot on the mouse pad to register the pressure. The functionality of the mouse can be altered by depressing the appropriate spot on the keyboard.
A further use of the secondary function of the f9 key is found with the use of laptop keyboards. With laptop keyboards, the f9 key is depressed when the mouse is pressed and released when the mouse button is pressed and released. It is thus possible to program a specific button press or release time to execute a particular command. The physical configuration of laptop keyboards makes it very convenient to use the f9 key as a supplementary function to other keys on the keyboard.
Apart from providing additional functionality to computer input devices, the use of laptop keyboard f9 key has benefits in terms of ergonomic design. The design of computer input devices like laptops and touch pads make use of curved shapes and awkward shapes. These inconvenient devices make it difficult for users to reach the precise areas on them and press buttons with ease. On the contrary, the laptop f9 key fits perfectly into the appropriate area and allows users to perform the required functions with ease.
Furthermore, the f9 key is conveniently situated in the lower right-hand corner of the laptop. This provides easy access. Furthermore, the use of laptop f9 key reduces the likelihood of accidentally pressing another function key or scrolling through the keyboard. In case the need arises, users are able to reset or change the secondary function of the f9 key to something else. There are many related keyboard shortcuts that can be performed by pressing the f9 key.
For example, the computer users can benefit by pressing the Control or the Alt button while the laptop keyboard f9 key is pressed. Moreover, there are many other useful combinations that can also be made possible. With these advantages, it is evident that the use of laptop keyboards with f9 secondary function keys is highly recommended.