\frame{ \frametitle{}
 \hspace{1em}
 \begin{centering}
 \hspace{-1cm}\includegraphics[height=3cm]{cactuslogo_structure_flesh}\\
 \Huge Cactus Structure\\
       The Flesh\\
 \end{centering}
}

\frame { \frametitle{The Flesh}
  \begin{itemize}
    \item Make system
     \begin{itemize}
      \item Organizes builds as 'configurations'
      \item Can build various documentation documents
      \item Can update Cactus flesh and thorns
     \end{itemize}
    \item Scheduling: Sophisticated scheduler which calls thorn-provided functions
          as and when needed
    \item API: Interface for functions to be callable from one thorn by another
    \item CCL: Configuration language which describes necessary details about
          thorns to the flesh
  \end{itemize}
}