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Hydroxyapatite (IMA name: hydroxylapatite [5]) (Hap, HAp, or HA) is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4) 3 (OH), often written Ca 10 (PO 4) 6 (OH) 2 to denote that the crystal unit cell comprises two entities. [6]
Calcium hydroxyphosphate (calcium phosphate tribasic, tribasic calcium phosphate, hydroxyapatite, HAp) is an inorganic chemical compound that is made up of calcium, hydrogen, oxygen and phosphorus. Its formula is Ca 5 (OH)(PO 4) 3. [1] It is found in the body and as the mineral hydroxyapatite. [citation needed]
The New York Times said that they were working with a single author, not a group of officials, and that the text was lightly edited by them but not for the purpose of obscuring the author's identity. They said that the definition of " senior administration official " was used in regular practice by journalists to describe "positions in the ...
The main mineral found in natural tooth enamel is hydroxyapatite rather than the fluorapatite created in the presence of fluoride. Even without fluoride, teeth experience alternating increases and decreases in mineral content, depending upon how acidic or alkaline the mouth is, and depending upon the concentration of other substances in the ...
Here, aesthetic concern is a term used in a standardized scale based on what adolescents would find unacceptable, as measured by a 1996 study of British 14-year-olds. [54] In many industrialized countries the prevalence of fluorosis is increasing even in unfluoridated communities, mostly because of fluoride from swallowed toothpaste. [64]
The New York Times was criticized for the work of reporter Walter Duranty, who served as its Moscow bureau chief from 1922 through 1936.Duranty wrote a series of stories in 1931 on the Soviet Union and won a Pulitzer Prize for his work at that time; however, he has been criticized for his denial of widespread famine, most particularly the Holodomor, the Ukraine famine in the 1930s.
He won the Gerald Loeb Award for magazine writing in 2009 for a New York Times Magazine article, "Obamanomics." [19] He was a winner of the Society of American Business Editors and Writers "Best in Business Journalism Contest" for his The New York Times column in 2009 and 2007. In 2010, he was a finalist for the Pulitzer Prize for Commentary ...
The Daily is a daily news podcast produced by the American newspaper The New York Times, hosted by Michael Barbaro and Sabrina Tavernise. Its weekday episodes are based on the Times reporting of the day, with interviews of journalists from The New York Times. Episodes typically last 20 to 30 minutes.