MOSCOW — A high-ranking editor and a top executive from one of Russia’s most respected news publications were dismissed on Tuesday after an apparent conflict over coverage that appeared to highlight widespread anger with the results of parliamentary elections this month.

The dismissals followed the publication this week of an election issue of the newsmagazine Kommersant Vlast, which detailed accusations of large-scale electoral fraud by the ruling party, United Russia, and included a photograph of a ballot scrawled with profanity directed against Prime Minister Vladimir V. Putin.

The firings came as tensions built between the Kremlin and a new constituency of reform-minded activists who held a protest against the election results here last weekend that drew tens of thousands of people.

President Dmitri A. Medvedev announced on Tuesday that the first session of the new Parliament would be held on Dec. 21, an indication that the Kremlin would not concede to increasingly vocal calls for new elections.