This helps the user tighten screws to a specified torque without damage or over-tightening. There are also surgical procedures to remove and tighten tissue and widen the airway. The need to tighten screws for a secure connection is cumbersome. When the tail is weighted, the turns tighten and make a bend in the rope. Liu increased the administrative regions in Taiwan to tighten control and to reduce crime. Strengthening the muscles that unconsciously tighten during vaginismus may be extremely counter-intuitive for some people. Pretensioners preemptively tighten the belt to prevent the occupant from jerking forward in a crash. Timber wedges are then used to tighten up the structure if necessary. These are designed to engage with the tool used to tighten them. The scrotum will usually tighten during penile erection and when exposed to cold temperature. The scrotum will usually tighten during erection. They would tighten immigration laws and shift the focus to attracting highly skilled migrants. The state has since moved to tighten its regulations. The cord is steamed to tighten the cord. As a Member of Parliament, he resisted international pressure to tighten patent controls in India.