When+exposed+to
41Vitamin D — is a group of fat soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol).cite web|url=http://dietary supplements.info.nih.gov/factsheets/vitamind.asp|title=Dietary Supplement Fact… …
42List of Omnitrix aliens — This is a list of aliens stored within the fictional Omnitrix device in the American animated television series Ben 10 and its sequel .For most of the series, the Omnitrix remains on Ben, and hence the aliens are described in relation to him. The …
43food preservation — Any method by which food is protected against spoilage by oxidation, bacteria, molds, and microorganisms. Traditional methods include dehydration, smoking, salting, controlled fermentation (including pickling), and candying; certain spices have… …
44Olfactory memory — refers to the recollection of odours. Studies have found various characteristics of common memories of odour memory including persistence and high resistance to interference. Explicit memory is typically the form focused on in the studies of… …
45Space accidents and incidents — Space accidents, either during operations or training for spaceflights, have killed 22 astronauts (five percent of all people who have been in space, two percent of individual spaceflights), and a much larger number of ground crew. This article… …
46Western blot — The western blot (alternatively, immunoblot) is an analytical technique used to detect specific proteins in a given sample of tissue homogenate or extract. It uses gel electrophoresis to separate native or denatured proteins by the length of the… …
47Sunscreen — (also known as sunblock or suntan lotion [ Nassau County Health Department [http://www.jacksonville.com/tu online/stories/061408/nen 290072672.shtml Jacksonville online] ] ) is a lotion, spray or other topical product that absorbs or reflects the …
48Mechanical fan — Household electric box fan with a propeller style blade A mechanical fan is a machine used to create flow within a fluid, typically a gas such as air. A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it… …
49Behavior of nuclear fuel during a reactor accident — This page is devoted to a discussion of how uranium dioxide nuclear fuel behaves during both normal nuclear reactor operation and under reactor accident conditions such as overheating. Work in this area is often very expensive to conduct, and so… …
50Potassium dichromate — Potassium dichromate …
