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from article Information processing (psychology)

Vertical associative memory where concepts are grouped into phrases and propositions by associating each concept to a higher-order node that represents the entire group. (Copyright © McGraw-Hill Education)

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from article Pituitary gland disorders

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from article Pituitary gland disorders

Infarction (obstruction of the blood supply) of the pituitary gland. This pituitary gland is almost entirely infarcted. Only a thin rim of viable cells remains (arrow). Pituitary infarcts can occur during pregnancy (Sheehan's disease) or as a result…

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from article Strychnos

Strychnos nux-vomica: close-up view of leaves and flowering branch. (Photo courtesy of Dinesh Valke)

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from article Guided missile

A U.S. Navy ship fires a Tomahawk cruise missile at a target in Libya as part of Operation Odyssey Dawn in 2011. (Credit: MC3 Jonathan Sunderman/US Navy/DoD)

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from article Guided missile

A V-2 rocket constructed by the U.S. military lifts off in this historical photo. Production and development of V-2 rockets continued in the United States after the defection of German aerospace engineers during World War II. (Credit: U.S. Army)

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from article Colemanite

Fundamental building block in the crystal structure of colemanite.

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from article Colemanite

Crystal structure of colemanite viewed down the a axis. The 〈Δ2□&x3009 x232A; rings link to form chains of borate polyhedra parallel to the c axis.

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from article Root (botany)

Kinds of roots. (a) Adventitious, on a cutting or slip (geranium). (b) Prop and other adventitious (corn). (c) Fibrous adventitious (grass). (d) Primary, or taproot (dandelion). (e) Fleshy taproot (carrot). (f) Fleshy, fascicled adventitious…

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from article Root (botany)