Sengstaken–Blakemore tube is a temporary measure: ulceration and rupture of the esophagus and stomach are recognized complications. A related device with a larger gastric balloon capacity (about 500 ml), the Linton–Nachlas tube, is used for bleeding gastric varices. It does not have an esophageal balloon. It is named for Robert William Sengstaken Sr. (1923–1978), an American neurosurgeon, and Arthur Blakemore (1897–1970), an American vascular surgeon. They conceptualized and invented the tube in the early 1950s. Sengstaken–Blakemore tube A Sengstaken–Blakemore tube is a medical device inserted through the nose or mouth and used occasionally in the management of upper gastrointestinal hemorrhage due to
Answering the Question: What is Enlightenment? II of Prussia for creating these preconditions. Kant focused on religious issues, saying that "our rulers" had less interest in telling citizens what to think in regard to artistic and scientific issues. Kant answers the question in the first sentence of the essay: "Enlightenment is man's emergence from his self-incurred immaturity (Unmündigkeit)." He argues that the immaturity is self-inflicted not from a lack of understanding, but from the lack of courage to use one's reason, intellect, and wisdom without the guidance of another. He exclaims that the motto of enlightenment is "Sapere aude"! – Dare to be wise! In the