Researchers have commented Statement on the unusual prevalence of older males among H7N9-infected patients .

The prevalence of the Times Square ball drop has inspired Influence similar `` drops Motion '' at other local New Year 's Eve events across the country ; while some use Using balls , some instead drop Motion objects that represent local culture or history .

Many of the Tang generals and soldiers stationed Placing in the region were ethnically Turkic , and the prevalence of Indo-European languages in Central Asia declined Cause_change_of_position_on_a_scale with acceleration Cause_change_of_position_on_a_scale of Turkic migration .