Question: The main representatives of the new style, often referred to as ars nova as opposed to the ars antiqua, were the composers Philippe de Vitry and Guillaume de Machaut. In Italy, where the Provencal troubadours had also found refuge, the corresponding period goes under the name of trecento, and the leading composers were Giovanni da Cascia, Jacopo da Bologna and Francesco Landini. Prominent reformer of Orthodox Church music from the first half of 14th century was John Kukuzelis; he also introduced a system of notation widely used in the Balkans in the following centuries.
Is there an answer to this question: Who introduced a system of musical notation used in the Balkans in the 14th century?

Answer: John Kukuzelis

Question: In order to enlist Stalin's support, Zhou and a Chinese delegation left for Moscow on 8 October, arriving there on 10 October at which point they flew to Stalin's home at the Black Sea. There they conferred with the top Soviet leadership which included Joseph Stalin as well as Vyacheslav Molotov, Lavrentiy Beria and Georgi Malenkov. Stalin initially agreed to send military equipment and ammunition, but warned Zhou that the Soviet Union's air force would need two or three months to prepare any operations. In a subsequent meeting, Stalin told Zhou that he would only provide China with equipment on a credit basis, and that the Soviet air force would only operate over Chinese airspace, and only after an undisclosed period of time. Stalin did not agree to send either military equipment or air support until March 1951. Mao did not find Soviet air support especially useful, as the fighting was going to take place on the south side of the Yalu. Soviet shipments of materiel, when they did arrive, were limited to small quantities of trucks, grenades, machine guns, and the like.
Is there an answer to this question: When did Stalin agree to send China any type of support?

Answer: March 1951

Question: Boston has been called the "Athens of America" for its literary culture, earning a reputation as "the intellectual capital of the United States." In the nineteenth century, Ralph Waldo Emerson, Henry David Thoreau, Nathaniel Hawthorne, Margaret Fuller, James Russell Lowell, and Henry Wadsworth Longfellow wrote in Boston. Some consider the Old Corner Bookstore, where these writers met and where The Atlantic Monthly was first published, to be "cradle of American literature. In 1852, the Boston Public Library was founded as the first free library in the United States. Boston's literary culture continues today thanks to the city's many universities and the Boston Book Festival.
Is there an answer to this question: What century did Ralph Waldo Emerson write in?

Answer: the nineteenth century

Question: On the other hand, certain financial techniques can reduce the impact of such purchases on the currency. One is sterilisation, in which highly valued assets are sold at the same time that the weaker assets are purchased, which keeps the money supply neutral. Another technique is simply to accept the bad assets as long-term collateral (as opposed to short-term repo swaps) to be held until their market value stabilises. This would imply, as a quid pro quo, adjustments in taxation and expenditure in the economies of the weaker states to improve the perceived value of the assets.
Is there an answer to this question: How can weaker states improve the surface value of their assets?

Answer:
adjustments in taxation and expenditure in the economies