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In toxicology, the lethal dose (LD) is an indication of the lethal toxicity of a given substance or type of radiation. Because resistance varies from one individual to another, the "lethal dose" represents a dose (usually recorded as dose per kilogram of subject body weight) at which a given percentage of subjects will die.
Roslyn Littman "Roz" Schulte (March 18, 1984 – May 20, 2009) was a United States Air Force officer killed in action in the U.S. war in Afghanistan, making her the first female United States Air Force Academy graduate to be killed by enemy action and the second female graduate killed in action. [1]
The first ground fatalities from an aircraft crash occurred on 21 July 1919, when the Wingfoot Air Express crash took place. The airship crashed into the Illinois Trust and Savings Building in Chicago, Illinois, killing three of the five occupants of the aircraft, in addition to ten people on the ground. [1]
A Pakistani Air Force Dassault Mirage 5 crashes in bad weather near Dera Ismail Khan while on a routine training flight. Both pilots die in the crash. [202] 5 March Turkish Air Force McDonnell Douglas F-4E-2020 Terminator, 73-1025, c/n 4585, of 112 Filo "Devils" out of Eskisehir, crashes for reasons unknown during a training mission. Both ...
In toxicology, the median lethal dose, LD 50 (abbreviation for "lethal dose, 50%"), LC 50 (lethal concentration, 50%) or LCt 50 is a toxic unit that measures the lethal dose of a given substance. [1] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test duration.
On 9 June 2007, 6 detainees were killed, 68 wounded and one Iraqi corrections officer was wounded when a rocket struck Compound 8, in the Theater Internment Facility located at Camp Bucca. [68] On 10 June 2007, a seventh detainee, who had been medically evacuated to Balad Air Base, died from wounds he sustained in the attack. [69]
Greene was born in Boston, Massachusetts, on February 11, 1959, to Eva May Shediak (May 22, 1928 – February 15, 2013) and Harold F. Greene (born 1930). [3] [12] He grew up in Schenectady, New York [13] graduated from Guilderland High School in 1977, [14] and from Rensselaer Polytechnic Institute (RPI) with a bachelor's degree in materials engineering in 1980. [15]
Deadly force, also known as lethal force, is the use of force that is likely to cause serious bodily injury or death to another person. In most jurisdictions, the use of deadly force is justified only under conditions of extreme necessity as a last resort , when all lesser means have failed or cannot reasonably be employed.