[OS X TeX] How to prevent word hyphenation or force line break in table of contents

[Charilaos Skiadas]

My publisher, as I imagine publishers often do, has made yet another  
request that I have struggled with, and that is with regards to the  
table of contents. They don't want any word breaks to occur in the  
table, or for that matter section headings throughout the book in  
general. In the particular case in point, the section that causes the  
problem is:

\section{The Lotka-Volterra Theory for the Growth of Two Conflicting  
Populations}

In the text, this gets broken nicely between Two and Conflicting. In  
the table of contents however, LaTeX changes breaks the line up by  
hyphenating at Pop-ulations. What I would really like to do is tell  
LaTeX to break between Conflicting and Populations, but all my  
numerous attempts have not succeeded.

Does anyone have any suggestions?

Haris Skiadas
Department of Mathematics and Computer Science
Hanover College