This rock suite, with a high abundance of Au-Ag, formed a tight linear fold, in which fractures were well developed.

In the late 1980s, they discovered that although a linear string of amino acids can fold into its proper three-dimensional shape in a test tube, the protein cannot do this on its own within a cell.

As compared with the corresponding results in the linear bilevel programs, our generalizations are two-fold: the objective function and the condition that should be satisfied.