Thyroid hormones (T 4 and T 3) are produced by the follicular cells of the thyroid gland and are regulated by TSH made by the thyrotropes of the anterior pituitary gland. The effects of T 4 in vivo are mediated via T 3 (T 4 is converted to T 3 in target tissues). T 3 is 3- to 5- fold more active than T 4.
May is Jewish American Heritage Month The Library of Congress, National Archives and Records Administration, National Endowment for the Humanities, National Gallery of Art, National Park Service and United States Holocaust Memorial Museum join in paying tribute to the generations of Jewish Americans who have helped form the fabric of American history, culture and society.
This calendar contains the 2015-16 Gregorian calendar dates for all Jewish holidays for the Hebrew calendar of the year 5776, including festivals and days of mourning.n accordance with the Jewish calendar, the 2015 dates begin with Rosh HaShanah, which is the primary Jewish New Year among the four actual new years in Judaism. Holidays begin at sundown on the evening before the dates listed.