5 Ergebnisse.

Keine Beschreibung.

Keine Beschreibung.

Fed up with the dreary round of life in Ballybeg, with his uncommunicative father and his humiliating job in his father's grocery shop, with his frustrated love for Kathy Doogan who married a richer, more successful young man and with the total absence of prospect and opportunity in his life at home, Gareth O'Donnell has accepted his aunt's invitation to come to Philadelphia. Now, on the eve of his departure, he is not happy to be leaving Ball...

1. 1 What is Selectivity? purpose, and crop protective agent for the A biologically-active substance is said to be second, but there is no fundamental difference selective if it strongly affects certain cells with­ of principle in their mode of action. out causing any change in others, even when the Drug therapy has two, fundamentally two kinds of cells are close neighbours. In living opposed divisions. The first of these strives to organisms,...

The term isoenzyme is used to describe enzymically active proteins, catalysing the same reaction and occurring in the same species, but differing in certain of their physico-chemical properties. Although the occurrence of enzymes in multiple molecular forms has been recognized for several decades, the application of electrophoretic and, to a lesser extent, chromatographic techniques has led to rapid developments in recent years. Since the disc...