1.   Some kids have erected emotional barriers that stop them from learning.

2.   Thatcher erect new barrier to monetary unity.

3.   The sugar program works by limiting domestic production and erecting trade barriers that keep the price of imported sugar high.

4.   Thus Blacks became a prime source of hostility for white unionists who set about erecting discriminatory barriers.

5.   Tumin suggests, however, that even relatively open systems of stratification erect barriers to the motivation and recruitment of talent.

6.   Work-inhibited children have erected emotional barriers to education and, in response to demands by adults, these barriers become more impenetrable.

7.   Police have erected barriers across the main roads into the town.

8.   We all unconsciously erect barriers against intimacy.

9.   From the early seventeenth century onwards some towns erected barriers against incoming vagrants, and though parish officers were sympathetic to their own poor they were hostile to outsiders.

10.   For a transitional period, industrial policy should include the option of erecting external barriers in some sectors to allow them to restructure and modernise.