Complex sentence: The "Dartmouth Gazette" changed its name to "The Dartmouth" as the newspaper was published more regularly with a greater emphasis on news of Dartmouth College, rather than news of a national import.
Split into simpler sentences: The "Dartmouth Gazette" changed its name to "The Dartmouth" as the newspaper was published more regularly. It also started to create a greater emphasis on news of Dartmouth College, rather than news of a national import.