Estradiol, or more precisely, 17Î²-estradiol, is a steroid and estrogen sex hormone, and the primary female sex hormone. It is named for and is important in the regulation of the estrous and menstrual female reproductive cycles.n the female, estradiol acts as a growth hormone for tissue of the reproductive organs, supporting the lining of the vagina, the cervical glands, the endometrium, and the lining of the fallopian tubes.
Ethnohistory is the study of ethnographic cultures and indigenous customs by examining historical records. It is also the study of the history of various ethnic groups that may or may not exist today. Ethnohistory uses both historical and ethnographic data as its foundation.
The word 'Ethnography' is derived from the Greek á¼Î¸Î½Î¿Ï (ethnos), ethnÃ³s meaning a, company later a, people nation ' -and graphy meaning field of. Study ethnographic studies focus on large cultural groups of people who interact over. timeritical ethnography: is a kind of ethnographic research in which the creators advocate for the liberation of groups which are marginalized in society. Critical researchers typically are politically minded people who look to take a stand of opposition to inequality and domination.