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Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with ...
Isotopes of gadolinium (64Gd) Naturally occurring gadolinium (64 Gd) is composed of 6 stable isotopes, 154 Gd, 155 Gd, 156 Gd, 157 Gd, 158 Gd and 160 Gd, and 1 radioisotope, 152 Gd, with 158 Gd being the most abundant (24.84% natural abundance). The predicted double beta decay of 160 Gd has never been observed; only a lower limit on its half ...
General Dynamics Corporation (GD) is an American publicly traded aerospace and defense corporation headquartered in Reston, Virginia. As of 2020, it was the fifth-largest defense contractor in the world by arms sales, and fifth largest in the United States by total sales. [ 2 ]
Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof. GD&T is used to define the nominal (theoretically perfect ...
Gender dysphoria (GD) is the distress a person experiences due to a mismatch between their gender identity—their personal sense of their own gender—and their sex assigned at birth. [ 5 ] [ 6 ] The term replaced the previous diagnostic label of gender identity disorder ( GID ) in 2013 with the release of the diagnostic manual DSM-5 .
Edible gold is a particular type of gold authorized by the European Union and the United States as a food additive, under the code E 175. It is used in haute cuisine as part of a trend towards extravagance in meals. It can be employed in foods and beverages such as in cookies decoration, wines or liquors; as sushi garnishment; or over ice cream ...
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Gestational diabetes is a condition in which a person without diabetes develops high blood sugar levels during pregnancy. [2] Gestational diabetes generally results in few symptoms; [2] however, it increases the risk of pre-eclampsia, depression, and of needing a Caesarean section. [2] Babies born to individuals with poorly treated gestational ...