we present detailed theoretical studies of the h-bonded complexes formed from interaction between 5-fluorouracil and various six-membered cyclic nitrosamine compounds. in this study, an investigation on intermolecular interactions in x-nu (x = ch2, sih2,bh, alh, nh, ph, o and s) complexes is carried out using density functional theory. the calculations are conducted on b3lyp/6-311++‏‏g** level ...

Visual mental imagery protocols can provide step-by-step traces of executive decisionmaking. Sequences of drawings that externalize thought processes are often easier to analyze than transcriptions of tape recorded verbal protocols. The technique is of obvious use for investigating spatial problem solving behavior since such tasks are usually solved with sketches, drawings, or graphs; the metho...

The social structural theories discussed in the previous section only explain part of the possible reason that Kody Scott chose the path in life he did. Not all who experience the same conditions turn out the same way; indeed, only one of Kody’s brothers ran afoul of the law. The social process theories discussed in this section take us a step further in understanding Kody’s choices. Two of the...