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Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects.[1][2][3] In humans, the most important compounds in this group are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol).[2][3][4] The major natural source of ...
Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism.[2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.[3] It is important in the normal functioning of the nervous system via its role in the synthesis of ...
Nicholas of Worcester (died 1124) was the prior of the Benedictine priory of Worcester Cathedral (crypt pictured) from about 1115 until his death. He was born around the time of the Norman Conquest.It is not known who his parents were, but William of Malmesbury wrote that he was "of exalted descent", and it has been argued that he was a son of King Harold Godwinson.
Wikipedia[note 3] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki-based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.[3][4] It is consistently ranked as one of the ten most popular ...
The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
Exhuma. Exhuma ( Korean : 파묘) is a 2024 South Korean supernatural horror film written and directed by Jang Jae-hyun, and starring Choi Min-sik, Kim Go-eun, Yoo Hae-jin and Lee Do-hyun. The film includes mystery and occult elements, and follows the process of excavating an ominous grave, which unleashes dreadful consequences buried underneath.
Wikipedia is a free online encyclopedia that anyone can edit, and millions already have . Wikipedia's purpose is to benefit readers by presenting information on all branches of knowledge. Hosted by the Wikimedia Foundation, it consists of freely editable content, whose articles also have numerous links to guide readers towards more information.
