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.
When is Israel's Independence Day in 2014? Israel's Independence Day in 2014 is on Monday, the 5th of May. Note that in the Jewish calander, a holiday begins on the sunset of the previous day, so observing Jews will celebrate Israel's Independence Day on the sunset of Sunday, the 4th of May. Dates of Israel's Independence Day by year.