Although plasminogen purification methods based on cellulose column chromatography have been described (l-4), the procedure based on acid extraction of Cohn’s plasma Fraction III (5) has continued to be widely used because of its simplicity, reproducibility and the absence of a limitation on the amount of Fraction III which can be processed. With the Fraction III available in 1953, plasminogen ...

iron is essential to erythrocyte oxygen transport and is a catalyst for oxidative metabolism in all cells. iron is absorbed by the duodenum and requires an acidic environment for optimal absorption. iron is found for 70% in erythrocytes, and 30% in storage, and a small amount in myoglobin and cytochromes. iron supplementation reduces anemia in breastfed infants and increases in significant dose...

We describe a method for calculating the roots of special functions satisfying second order ordinary differential equations. It exploits the recent observation that the solutions of equations of this type can be represented via nonoscillatory phase functions, even in the high-frequency regime. Our approach requires O(1) operations per root and achieves near machine precision accuracy. Moreover,...

during the past few years, modeling in agriculture has attracted considerable attention. new modeling methods including neural networks are employed in various industries, and it is necessary that their use in agriculture be also considered. this research addressed the trend of energy use in broiler farms in alborz province and sought to model the trend of energy consumption and production in t...

The special regressor method (Lewbel 2000) has been used to identify a variety of limited dependent variable models. Based on its early application to binary choice models, the method required the special regressor to have large (in many cases the entire real line) support, which constrained its usefulness for empirical work. This paper shows that for ordered choice and censored regression mode...