1.   A second approach is to use some theoretical model to calculate effective atomic charges.

2.   There is no clear theoretical model to explain the relationship between motivation, job satisfaction and performance.

3.   This analysis is extended by the examination of theoretical models of buying behaviour, and is illustrated by a major case study.

4.   More theoretical models of citation typology are described by Moravcsik and Murugesan, Chubin and Moitra, and by Murugesan and Moravcsik.

5.   They argue for the development of theoretical models, upon which hypothesis testing can be carried out.

6.   Lattice enthalpies can also be calculated using a theoretical model.

7.   There are theoretical models which suggest that effective markets depend on legal and institutional factors as well as the operation of the price mechanism.