Hepatic artery embolization hepatic artery. The percutaneous Seldinger technique introduces a catheter, which is a thin flexible tube made of medical grade material, into the hepatic artery under radiological control. This approach was developed for metastatic neuroendocrine tumors in the early 1970s. Tumor cells get over 90% of their nutrients from the hepatic artery, while the normal cells of the liver get about 70-80 percent of their nutrients and 50% their oxygen supply from the portal vein, and thus can survive with the hepatic artery effectively blocked. Once the catheter is carefully placed in the artery or in a selected branch, the blood
Nominalized adjective elaborated by Noam Chomsky, it is suggested that inflected adjectives are more likely to be nominalized because they have overtly-marked φ-features (such as grammatical number and gender), which makes them suitable for use as the complement of a determiner. Determiners with unvalued φ-features must find a complement with a valued φ-feature to meet semantic comprehension. In the diagrams below, the determiner is "the", and its complement is either the noun phrase "poor people" or the nominalized adjective "poor". As the frequency of nominalized adjective use decreased, the frequency of structures using the prop-word "one" increased (phrases such as "the large"