The role of the supervisor. Although a dissertation is an opportunity for you to work independently, you will usually be allocated a member of academic staff as a supervisor. Supervisors are there to help you shape your ideas and give you advice on how to conduct the research for your dissertation.
The TN device consists of the twisted nematic liquid crystal confined between two glass substrates with homogeneous planar orientation: the orientation of the director n on one substrate is rotated by 90 o with respect to n on another substrate.
Twisted Colon. By: Colon Cleansing & Constipation Resource Center. Updated: April 27, 2009. A twisted colon, medically known as colonic volvulus, is a condition in which certain portions of the colon become twisted onto itself. This causes the blood flow in the area to become restricted and also causes gas and fluid to accumulate in the region. As a result, the bowels become obstructed and the tissue in the affected area can die off, requiring immediate surgical attention. The two portions of the colon most commonly twisted are the sigmoid colon and the cecum. A twisted colon can be quite painful, but is usually fairly easy to treat once it has been diagnosed.