A capacitive touch keyboard includes a soft shielding layer, a soft intermediate layer, and a one dimensional sensor layer where the soft intermediate layer is interposed between the other two to form a capacitor structure. In the case of an impending, no longer avoidable second event, automatically exerts a second tightening force on the belt which is greater than the first tightening force. A needle may be releasably attached to the clip. The administration to the patient may be made either in vivo or ex vivo and may be performed by either introducing the derivative including the reactive functional group into the patient’s vascular system or preparing such a conjugate externally and introducing that conjugate to the patient’s vascular system . The vehicle is guided in a third mode based upon the planned path and the detection of the presence of the obstacle. A method for conducting drilling operations using an apparatus as defined above, comprises operating the drilling assembly and directing fluid between the surface and the drilling assembly via the flexible fluid line.