M e<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr> u<chr_abbr type="reg" class="dc" expan="" cert="no">re-hbar</chr_abbr> <chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>nor i uei<chr_var letter="s" var="long">∫</chr_var><chr_var letter="s" var="long">∫</chr_var>e. 