Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.. In the scope of its subject, chemistry occupies an …

The turkey is a large species of bird in the genus Meleagris, native to North America.There are two extant turkey species: the wild turkey (M. gallopavo) of eastern and central North America and the ocellated turkey (M. ocellata) of the Yucatán Peninsula in Mexico. This photograph, taken at Deer Island Preserve in Novato, California, depicts a male Rio Grande wild turkey (M. g. …

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Estrone (E1), also spelled oestrone, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estriol. Estrone, as well as the other estrogens, are synthesized from cholesterol and secreted mainly from the gonads, though they can also be formed from adrenal androgens in adipose tissue.

The Nobel Prize in Chemistry (Swedish: Nobelpriset i kemi) is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry.It is one of the five Nobel Prizes established by the 1895 will of Alfred Nobel, who died in 1896.These prizes are awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology …

The Nobel Prize in Chemistry is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry.It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine.This award is administered by the Nobel …

Formal theory. Formally, a string is a finite, ordered sequence of characters such as letters, digits or spaces. The empty string is the special case where the sequence has length zero, so there are no symbols in the string.

Ruta graveolens, commonly known as rue, common rue or herb-of-grace, is a species of Ruta grown as an ornamental plant and herb.It is native to the Balkan Peninsula.It is grown throughout the world in gardens, especially for its bluish leaves, and sometimes for its tolerance of hot and dry soil conditions. It is also cultivated as a culinary herb, and to a lesser extent as an insect …

The roles of women in the Arab world have changed throughout history, as the culture and society in which they live has undergone significant transformations. Historically, as well as presently, the situation of women differs greatly between Arabic speaking regions, their urban or rural population and age groups.Among other factors, these differences can be attributed to …

Some Western countries were slow to allow women to vote, notably Switzerland, where women gained the right to vote in federal elections in 1971, and in the canton of Appenzell Innerrhoden women were granted the right to vote on local issues only in 1991, when the canton was forced to do so by the Federal Supreme Court of Switzerland; and Liechtenstein, in 1984, through a …