define scintillation
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- Definition of scintillation. 1 :  an act or instance of scintillating; especially : rapid changes in the brightness of a celestial body. 2a : a spark or flash emitted in scintillatingb : a flash of light produced in a phosphor by an ionizing event.
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Distillation Distillation. Distillation is a method of separating mixtures based on differences in volatility of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction.
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ECG Interpretation of Arrhythmias Fibrillation refers to a situation where there is total disorganization of depolarization. These rapid rhythms shorten the diastolic interval to such an extent that adequate filling of the effected cardiac chambers cannot take place, resulting in reduced cardiac output.
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atrial fibrillation atrial fibrillation (āˑ·trē· l fi·bri·lāˑ·sh n), n quick uncoordinated twitching movements of the muscles of the atria of the heart; may result in a lack of regular pulse and lowered circulation.
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Scintillation Scintillation can refer to: 1  Scintillation (astronomy), atmospheric effects which influence astronomical observations. 2  Interplanetary scintillation, fluctuations of radio waves caused by the solar wind. 3  Scintillation (physics), a flash of light produced in certain materials when they absorb ionizing radiation. Scintillation (radar), an apparent rapid target displacement occurring on radar displays. Scintillation (medicine), a rapidly oscillating pattern of visual distortions, often associated with migraine aura.
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scintillating scotoma scintillating scotoma. Nothing like experiencing a medical condition first-hand to really help a doctor understand it from the patient's point of view. After all these years, I had my first (and hopefully last) scintillating scotoma while sitting on the couch playing words with friends on my ipad and watching TV. A scotoma is a partial loss of vision in a normal visual field. Scintillate is flashing, sparkles.
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Definitions &Translations Scintilla. Scintilla is a free library that provides text-editing functions, with an emphasis on advanced features for source code editing. SciTE, Geany, Notepad++, and Notepad2 are examples of standalone editors based on Scintilla.
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OSCILLATION transient - (physics) a short-lived oscillation in a system caused by a sudden change of voltage or current or load. beat-a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations.
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Scintillating scotoma Scintillating scotoma is the most common visual aura preceding migraine and was first described by 19th-century physician Hubert Airy (1838–1903). It is often confused with ocular migraine, which originates in the eyeball or socket.any variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the visual field, which prevents vision within the scotoma area.
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Distilling In the most basic sense, distillation is a process used to separate a composite mixture into base elements. It involves a change of state, usually from liquid to gas, and then subsequent condensation to return the now separated elements to liquid state.
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- LIQUID SCINTILLATION COUNTING Liquid scintillation counting is an analytical technique which is defined by the incorporation of the radiolabeled analyte into uniform distribution with a liquid chemical medium capable of converting the kinetic energy of nuclear emissions into light energy. Although the liquid scintillation counter
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scintillation Definition of scintillation. 1  1 : an act or instance of scintillating; especially : rapid changes in the brightness of a celestial body. 2  2a : a spark or flash emitted in scintillatingb : a flash of light produced in a phosphor by an ionizing event. 3  3 : a brilliant outburst (as of wit) 4  4 : a flash of the eye.
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QT interval In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. The QT interval represents electrical depolarization and repolarization of the ventricles. A lengthened QT interval is a marker for the potential of ventricular tachyarrhythmias like torsades de pointes and a risk factor for sudden death.
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Distillation What is Distillation? Distillation is a widely used method for separating the component substances from a liquid mixture by selective evaporation and condensation. To separate a mixture of liquids, the liquid can be heated to force components, which have different boiling points, into the gas phase. In industrial chemistry, distillation is a unit operation of practically universal importance, but it is a physical separation process and not a chemical reaction.
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Distillation Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture.In either case the process exploits differences in the volatility of mixture's components.istillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture. In either case the process exploits differences in the volatility of mixture's components.
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OSCILLATION Hyponyms (each of the following is a kind of oscillation): libration ((astronomy) a real or apparent slow oscillation of a moon or satellite) Meaning: (physics) a regular periodic variation in value about a mean. Classified under:
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- Definition of graphite. 1 : a soft black lustrous form of carbon that conducts electricity and is used in lead pencils and electrolytic anodes, as a lubricant, and as a moderator in nuclear reactors. 2 : a composite material in which carbon fibers are the reinforcing material.
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- Definition. An oscillation is defined as a periodic phenomenon or vibration around a point of equilibrium. There are two primary types of oscillations, but both follow the aforementioned definition. An oscillation is always periodic, meaning that it goes back and forth in some manner.or instance, a compressional wave is technically an oscillation, but it is somewhat hard to observe its periodic motion unless one can either see it from the right angle or knows that for which to look. An easy way to check if something is an oscillation is to see if the phenomenon has an equilibrium point.
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- LIQUID SCINTILLATION COUNTING. Liquid scintillation counting is an analytical technique which is defined by the incorporation of the. radiolabeled analyte into uniform distribution with a liquid chemical medium capable of converting. the kinetic energy of nuclear emissions into light energy. Although the liquid scintillation counter. is a sophisticated laboratory counting system used the quantify the activity of particulate emitting. (ß and a) radioactive samples, it can also detect the auger electrons emitted from 51Cr and 125I. samples.
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quenching 1 a process of removing or reducing an energy source, such as heat or light. 2 stopping or diminishing a chemical or enzymatic reaction. 3 decreasing counting efficiency in beta liquid scintillation caused by interfering materials.
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What is an oscillation? a single swing or movement in one direction of an oscillating body. 3. fluctuation between beliefs, opinions, conditions, etc. 4. Physics. an effect expressible as a quantity that repeatedly and regularly fluctuates above and below some mean value, as the pressure of a sound wave or the voltage of an alternating current.
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Definitions &Translations twinkle, scintillation, sparkling(noun) a rapid change in brightness; a brief spark or flash. sparkle, twinkle, spark, light(verb) merriment expressed by a brightness or gleam or animation of countenance. he had a sparkle in his eye; there's a perpetual twinkle in his eyes.
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- Panic not a cause: Scintillating scotomas are most commonly caused by cortical spreading depression, a pattern of changes in the behavior of nerves in the brain during a migraine. Panic is not on the list of causes on any source i found. The first sentence is from the wikipedia article on scintillating scotomata.
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Scientism Definition of SCIENTISM. 1. : methods and attitudes typical of or attributed to the natural scientist.2. : an exaggerated trust in the efficacy of the methods of natural science applied to all areas of investigation (as in philosophy, the social sciences, and the humanities).efinition of SCIENTISM. 1. : methods and attitudes typical of or attributed to the natural scientist.
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What is color quenching? Color quenching is the attenuation of photons produced by a scintilator due to absorption and scattering. This effect, combined with the chemical quenching (attenuation of the transfer of energy from the solvent to the scintillator gives the total quenching effect of the scintillator/solvent mix. Color quenching is the attenuation of photons produced by a scintilator due to absorption and scattering.
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Distillation Distillation. Photo by: TMakotra. Distillation is a technique by which two or more substances with different boiling points can be separated from each other. For example, fresh water can be obtained from seawater (water that contains salts) by distillation.