focal irradiation

См. также в других словарях:

• microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• PHOTOGRAPHIE — La perception de l’apparence du monde matériel par notre organe visuel a comme support la lumière visible ou les autres radiations électromagnétiques, rendues visibles par l’intermédiaire de phénomènes auxiliaires. L’emploi direct de l’ensemble… …   Encyclopédie Universelle

• Atypical teratoid rhabdoid tumor — ICD9|192 Caption = MRI of an AT/RT ICDO = 9508/3 OMIM = 609322 DiseasesDB = 30780 MedlinePlus = 000768 eMedicineSubj = ped eMedicineTopic = 3012 MeshID = D016543 Atypical teratoid rhabdoid tumor (AT/RT) is a rare tumor usually diagnosed in… …   Wikipedia

• MICROSCOPIE — La révolution qui consiste, à la fin du XVIe siècle, à regarder «à la loupe» non plus directement un objet, mais son image agrandie est à l’origine de la microscopie. L’étymologie (du grec mikros , petit, et skopein , examiner) renvoie à l’examen …   Encyclopédie Universelle

• Microscopy — is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). There are three well known branches of microscopy, optical,… …   Wikipedia

• Brain tumor — Classification and external resources Brain metastasis in the right cerebral hemisphere from lung cancer shown on T1 weighted magnetic resonance imaging with intravenous contrast …   Wikipedia

• Solar thermal energy — Solar thermal system for water heating in Santorini, Greece …   Wikipedia

• dose — 1. The quantity of a drug or other remedy to be taken or applied all at one time or in fractional amounts within a given period. Cf.:dosage (2). 2. In nuclear medicine, amount of energy absorbed per unit mass of irradiated material (absorbed d.) …   Medical dictionary

• Ablation — is defined as the removal of material from the surface of an object by vaporization, chipping, or other erosive processes. The term occurs in space physics associated with atmospheric reentry, in glaciology, medicine and passive fire… …   Wikipedia