The energy associated with the arterial pulse propagates through the circulation. The velocity at which the arterial pulse propagates is termed pulse wave velocity (PWV). PWV is used clinically as a measure of arterial stiffness.

The National Transitional Council of Libya (Arabic: المجلس الوطني الإنتقالي‎‎ al-majlis al-waṭanī al-intiqālī ), sometimes known as the Transitional National Council, was the de facto government of Libya for a period during and after the Libyan Civil War, in which NATO backed rebel forces overthrew the Libyan Arab Jamahiriya of Muammar Gaddafi. The NTC governed Libya for a period of ten months after the end of the war, holding elections to a General National Congress on 7 July 2012, and handing power to the newly elected assembly on 8 August.The formation of the NTC was announced in the city of Benghazi on 27 February 2011 with the purpose to act as the "political face of the revolution". On 5 March 2011, the council issued a statement in which it declared itself to be the "only legitimate body representing the people of Libya and the Libyan state". An executive board, chaired by Mahmoud Jibril, was formed by the council on 23 March 2011 after being de facto assembled as an "executive team" since 5 March 2011. The NTC issued a Constitutional Declaration in August 2011 in which it set up a road-map for the transition of the country to a constitutional democracy with an elected government.The council gained international recognition as the legitimate governing authority in Libya and occupied the country's seat at the United Nations. In referring to the Libyan state, the council used simply "Libya". The UN formally recognized the country as "Libya" in September 2011, based on a request from the Permanent Mission of Libya citing the Libyan interim Constitutional Declaration of 3 August 2011. In November 2011, the ISO 3166-1 was altered to reflect the new country name "Libya" in English, "Libye (la)" in French.
The National Transitional Council of Libya (Arabic: المجلس الوطني الإنتقالي‎‎ al-majlis al-waṭanī al-intiqālī ), sometimes known as the Transitional National Council, was the de facto government of Libya for a period during and after the Libyan Civil War, in which NATO backed rebel forces overthrew the Libyan Arab Jamahiriya of Muammar Gaddafi.

The energy associated with the arterial pulse propagates through the circulation. The velocity at which the arterial pulse propagates is termed pulse wave velocity (PWV). PWV is used clinically as a measure of arterial stiffness. It is easy to measure invasively and non-invasively in humans, is highly reproducible, has a strong correlation with cardiovascular events and all-cause mortality, and was recognized by the European Society of Hypertension as an indicator of target organ damage and a useful additional test in the investigation of hypertension. A high pulse wave velocity (PWV) has also been associated with poor lung function.