نتایج جستجو برای: he health
تعداد نتایج: 1121557 فیلتر نتایج به سال:
3 days before his 68th birthday. He began his career as a physician working in a low-income community in Boston, Massachusetts. In 1978–1980 he and his wife Andy, a nurse, went to a newly independent Mozambique, where he served as a volunteer chief of medicine at the Central Hospital in Beira. After returning to Boston, he continued to practice family medicine, and he also enrolled in a master’...
C hina’s position as the world’s second largest economy is largely due to its rapid economic growth in the coastal region, which composes only 13% of China’s total land area, yet contributes 60% of the gross domestic product (GDP). To create extra land for the rapidly growing economy, coastal wetlands have been enclosed by thousands of kilometers of seawalls, whose length exceeds that of China’...
A previous study highlighted the effect of vocal technique on the singing voice accuracy of trained singers. The intervals' precision between the notes of the tune was altered when the singers used Western operatic singing technique. In order better to understand these results, we have recorded two different melodies sung with two different vocal techniques. A large panel of trained singers (n ...
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