Q:

Going mad with \wrapfigure and \itemize conflict

I am trying to insert an image floating in a bullet point list, in beamer. 
Sadly the result is that the image is put in a new frame, following the one where I insert the code. 
Moreover, I am not able to moove the image: any of \wrapfigure{R},  \wrapfigure{T}... and so on gives the same result, whereas I would expect my image to be put Right, Top and so on. 
Here's the code I wrote  
\documentclass[10pt,xcolor={table,dvipsnames},t]{beamer}
\usetheme{UCBerkeley}
\usepackage{graphicx}
\usepackage{wrapfig}

\begin{document}

\begin{frame}{Simplicial Subdivisions}

\begin{itemize}
\item Let $T=\sigma(x^0,...,x^n)$ be an n-simplex.  A \textbf{simplicial subdivision} of T is a collection of (sub-) simplexes $\{T_i: i\in I\}$ such that $\bigcup_i T_i=\ \Bar{T}$ and $\forall i,j\ \Bar{T_j}\cap\Bar{T_j}$ either equals $\emptyset$ or the closure of a common face $\Bar{F_{ij}}$.
\begin{wrapfigure}{h}{0.25\textwidth} 
    \includegraphics[width=0.25\textwidth]{Subdivision. PNG}
\end{wrapfigure}
\pause
\item An important subdivision is the equilateral one 
\pause
\item The \textbf{mesh of a subdivision} is the diameter of its largest element
\end{itemize}

\end{frame}
\end{document}

Thanks for any help 

A:

It seems that using the plain TeX macro package insbox and enumitem (to change the right margin of the list), it works.  Not sure there are no side-effects, though. 
\PassOptionsToPackage{demo}{graphicx}
\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{enumitem}
\input{insbox}

\begin{document}

\begin{frame}{Simplicial Subdivisions}

\InsertBoxR{1}{\includegraphics[width=0.25\textwidth]{Subdivision. PNG}}
\begin{itemize}[label=$\blacktriangleright$, rightmargin=0.27\linewidth]
\item Let $T=\sigma(x^0,...,x^n)$ be an n-simplex.  A \textbf{simplicial subdivision} of T is a collection of (sub-) simplexes $\{T_i: i\in I\}$ such that $\bigcup_i T_i=\ \Bar{T}$ and $\forall i,j\ \Bar{T_j}\cap\Bar{T_j}$ either equals $\emptyset$ or the closure of a common face $\Bar{F_{ij}}$.
\pause
\item An important subdivision is the equilateral one
\pause
\item The \textbf{mesh of a subdivision} is the diameter of its largest element
\end{itemize}

\end{frame}

\end{document} 

