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The Caribbean Examinations Council (CXC) is an examination board in the Caribbean. [1] [2] It was established in 1972 [3] under agreement by the participating governments in the Caribbean Community to conduct such examinations as it may think appropriate and award certificates and diplomas on the results of any such examinations so conducted.
A cheat sheet that is used contrary to the rules of an exam may need to be small enough to conceal in the palm of the hand Cheat sheet in front of a juice box. A cheat sheet (also cheatsheet) or crib sheet is a concise set of notes used for quick reference.
P1 Zn 2 SiO 4:Mn: Green 530 nm 11 ns Low For electrons GS ZnS:Cu: Green 520 nm Minutes Long For X-rays NaI:Tl: For X-ray, alpha, and electrons CsI:Tl: Green 545 nm 5 μs Yes For X-ray, alpha, and electrons ND 6 LiF/ZnS:Ag: Blue 455 nm 80 μs For thermal neutrons: NDg 6 LiF/ZnS:Cu,Al,Au: Green 565 nm 35 μs For neutrons Cerium doped YAG phosphor ...
In thermochemistry, a thermochemical equation is a balanced chemical equation that represents the energy changes from a system to its surroundings.One such equation involves the enthalpy change, which is denoted with In variable form, a thermochemical equation would appear similar to the following:
Various collaborative online encyclopedias were attempted before the start of Wikipedia, but with limited success. [19] Wikipedia began as a complementary project for Nupedia, a free online English-language encyclopedia project whose articles were written by experts and reviewed under a formal process. [20]
In photography, formaldehyde is used in low concentrations for the process C-41 (color negative film) stabilizer in the final wash step, [61] as well as in the process E-6 pre-bleach step, to make it unnecessary in the final wash. Due to improvements in dye coupler chemistry, more modern (2006 or later) E-6 and C-41 films do not need ...
A study, as part of a series [429] and alongside a WHO fact sheet [image needed] (21 Mar), [430] [431] robustifies the recent [432] concept of "commercial determinants of health" suggesting "transnational corporations", facilitated by economic and governance systems [433] and a "shift towards market fundamentalism", are responsible for ...
239 Pu is a key fissile component in nuclear weapons, due to its ease of fission and availability. Encasing the bomb's plutonium pit in a tamper (a layer of dense material) decreases the critical mass by reflecting escaping neutrons back into the plutonium core.