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The Avangard (Russian: Авангард, "Vanguard"; previously known as Objekt 4202, Yu-71 and Yu-74) is a Russian hypersonic glide vehicle (HGV). It can be carried as a multiple independently targetable reentry vehicle (MIRV) payload of heavy intercontinental ballistic missiles (ICBMs), such as the UR-100UTTKh, [6] [7] R-36M2 and RS-28 Sarmat.
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The Sukhoi Su-25 Grach (Russian: Грач ; NATO reporting name: Frogfoot) is a subsonic, single-seat, twin-engine jet aircraft developed in the Soviet Union by Sukhoi. It was designed to provide close air support for Soviet Ground Forces. The first prototype made its maiden flight on 22 February 1975.
In December 2020, Boeing released video showing the first flight of the MQ-25 with a Cobham aerial refueling store externally mounted. [20] MQ-25 T1 Stingray test aircraft takes off, 2021 MQ-25 T1 on aboard USS George H.W. Bush 2021. On 4 June 2021, the first refueling test was conducted, with the MQ-25 providing fuel to an F/A-18F Super Hornet.
Portopulmonary hypertension (PPH) [1] is defined by the coexistence of portal and pulmonary hypertension. PPH is a serious complication of liver disease, present in 0.25 to 4% of all patients with cirrhosis. Once an absolute contraindication to liver transplantation, it is no longer, thanks to rapid advances in the treatment of this condition. [2]
A derivative of the substituted phenethylamine 2C-I family, it is the most well-known member of the 25-NB family. It was discovered in 2003 by chemist Ralf Heim at the Free University of Berlin, who published his findings in his PhD dissertation. [5] The compound was subsequently investigated by a team at Purdue University led by David Nichols. [6]
Constituted 1 February 1957 in the Regular Army as the 25th Aviation Company, assigned to the 25th Infantry Division, and activated at Schofield Barracks, Hawaii ...
25-Hydroxycholesterol is a derivative of cholesterol, which plays a role in various biological processes in humans and other species.It is involved in cholesterol metabolism, antivirus process, inflammatory and immune response, and survival signaling pathway. 25-hydroxycholesterol is biosynthesized from cholesterol by adding a hydroxyl group at the position 25-carbon of a steroid nucleus.