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The PT-91 Twardy ( Polish pronunciation: [ˈtfar.dɨ], English: Hard) is a Polish main battle tank. A development of the T-72M1, it entered service in 1995. The PT-91 was designed at the OBRUM ( Ośrodek Badawczo-Rozwojowy Urządzeń Mechanicznych, or Research and Development Centre for Mechanical Appliances) and is produced by the Bumar ...
PT-71 (Not to be confused with the Soviet PT-71) – Is a PT-76 upgrade built by Nimda Group Ltd., which includes a 90 mm Cockerill tank gun, a new machine gun, a new fire control system, a laser range finder, night vision devices and a 300 hp (224 kW) Detroit Diesel 6V71T diesel engine. The only known customers were the Israeli and Indonesian ...
Decompression sickness ( DCS; also called divers' disease, the bends, aerobullosis, and caisson disease) is a medical condition caused by dissolved gases emerging from solution as bubbles inside the body tissues during decompression. DCS most commonly occurs during or soon after a decompression ascent from underwater diving, but can also result ...
A tank locomotive is a steam locomotive which carries its water in one or more on-board water tanks, instead of a more traditional tender. Most tank engines also have bunkers (or fuel tanks) to hold fuel; in a tender-tank locomotive a tender holds some or all of the fuel, and may hold some water also. There are several different types of tank ...
The Combat Vehicle 90 ( CV90) ( Swedish: stridsfordon 90 ⓘ, strf 90 or Stridsfordon 90) is a family of Swedish tracked armoured combat vehicles designed by the Swedish Defence Materiel Administration (FMV), Hägglund & Söner and Bofors during the mid-1980s to early 1990s, before entering service in Sweden in the mid-1990s.
good if treated in time, poor if untreated. Post-traumatic embitterment disorder ( PTED) is defined as a pathological reaction to a negative life event, which those affected experienced as a grave insult, humiliation, betrayal, or injustice. Prevalent emotions of PTED are embitterment, anger, fury, and hatred, especially against the triggering ...
Complex post-traumatic stress disorder ( CPTSD, sometimes hyphenated C-PTSD) is a stress-related mental disorder generally occurring in response to complex traumas, [ 1] i.e., commonly prolonged or repetitive exposures to a series of traumatic events, within which individuals perceive little or no chance to escape. [ 2][ 3][ 4]
A new treatment for liver cancer which isolates the organ and “bathes” it in chemotherapy has been found to be effective in almost 90% of patients. The procedure being pioneered in the UK at ...