Bart Yasso is Chief Running Officer for Runner's World and one of the most beloved figures in the sport. Affectionately dubbed the "Mayor of Running," Bart is the public face of Runner's World at races in the United States and abroad. Bart has been with Runner's World since 1987.

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Julie Brown Yau, PhD, is a psychologist with more than thirty years of experience in somatic and spiritual traditions. Her unique approach blends clinical experience, psychology, physical and subtle body energies, and spiritual perspectives in discussing and healing trauma.

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Ashley Jean Yeager is associate news editor at Science News. She has written for Quanta, Science News, Nature, Astronomy, Sky & Telescope, The Scientist, and other publications.

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Dr. Kirk Yeager has nearly thirty years of experience with improvised explosives and IEDs; he has presented over 200 talks at international meetings and conferences; and he has produced over eighty specialty publications in the area of explosives and IEDs. He lives near Washington, DC.

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Tina Yeager embraces audiences with spoken and written messages of encouragement. She is an author, speaker, and life coach who champions the message of Christ-centered esteem. As a licensed counselor she serves Word Weavers International, local student and women's ministries, and others. Visit her at tinayeager.com.

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Selene Yeager is a top-selling health and fitness writer who lives what she writes as a NASM certified personal trainer, USA Cycling certified coach, Pn1 certified nutrition coach, pro licensed off-road racer, and All-American Ironman triathlete. She has authored, coauthored, or contributed to nearly thirty books.

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V. M. Yeates was born at Dulwich, and educated at Colfe's School. Yeates joined the Royal Flying Corps (later the Royal Air Force) in 1917. Serving with No. 46 Squadron, he flew 248 hours in Sopwith Camels, crashed four times, was shot down twice, and scored five victories, thereby achieving "ace" status. He died in 1934.

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William Butler Yeats (1865–1939) was an Irish poet and one of the foremost figures of twentieth-century literature. He was awarded the Nobel Prize in Literature as the first Irishman so honored. Yeats is generally considered one of the few writers who completed their greatest works after being awarded the Nobel Prize. Such works include The Tower and The Winding Stair and Other Poems.

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Robert Yehling is the author of ten books, including Just Add Water, which has been nominated for the Dorothy Gray Children's Literature Award and an International Book Award.

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Harry Yeide has been a national security affairs analyst for the federal government for twenty-seven years. He is the author of a number of works of military history, including The Longest Battle and First to the Rhine.

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Serhy Yekelchyk is professor of history and Slavic studies at the University of Victoria. He has published widely on modern Ukrainian history and Russian-Ukrainian relations.

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Emily Yellin is the author of Our Mothers' War, and was a longtime contributor to the New York Times. She has also written for Time, the Washington Post, the International Herald Tribune, Newsweek, Smithsonian Magazine, and other publications.

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