nsp;</span>effects <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>each <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>three <span  title="" class="an ">&ensp;</span>species <span  title="" class="an ">&ensp;</span>on <span  title="" class="an ">&ensp;</span>barium <span  title="" class="an ">&ensp;</span>currents <span  title="" class="an ">&ensp;</span>through <span  title="" class="an "