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Epilepsy; Facts to Know.
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* Epilepsy is usually described as a family of brain disorders that involve nerve cells that misfire, or signal abnormally, causing a seizure.
* Epilepsy can affect anyone at any age. However, people over the age of 65 account for about 24 percent of the total 2.5 million people with epilepsy, according to the Epilepsy Foundation.
* Approximately one million women in the U.S. are being treated for epilepsy.
* There is no single cause of epilepsy. Some of the known causes include injury to the brain before, during or after birth, infections and ...
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Explaining hysteresis in electronic circuits
Magazine article from: International Journal of Electrical Engineering Education
; Abstract We show how the hysteresis behaviour in electronic circuits...this circuit can be used to produce hysteresis loops. The realisation of relaxation...application. Keywords amplifiers; hysteresis; nonlinear circuits; nonlinear...
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Strain dependence of pseudoelastic hysteresis of NiTi
Magazine article from: Metallurgical and Materials Transactions
; ...transformation-strain dependence of the stress hysteresis of pseudoelasticity associated with...was observed that the apparent stress hysteresis of pseudoelasticity was independent...macroscopically deformed uniformly, the stress hysteresis of pseudoelasticity increased continuously...
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Adding hysteresis to comparators.(Technology Information)(Column)
Magazine article from: EDN
; ...comparator theory, and this column adds hysteresis to comparators to eliminate multiple...voltage to switch almost randomly. Hysteresis is positive feedback that pulls the...sub.1] and [R.sub.2] are the hysteresis components. When [V.sub.IN] transitions...
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Effect of holding time on high strain hysteresis loss of carbon black filled rubber vulcanizates.
Magazine article from: Polymer Engineering and Science
; INTRODUCTION Hysteresis loss in a material is a measure of the energy dissipated...and the tear strength are directly a function of hysteresis loss. The reduction of life cycle due to hysteresis loss is a classical problem for design engineers...
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Exercise-induced QT/R-R-interval hysteresis as a predictor of myocardial ischemia*
Magazine article from: Journal of Electrocardiology
; ...Objectives: Exercise-induced QT/RR hysteresis exists when, for a given R-R interval...assess the association between QT/RR hysteresis and imaging evidence of myocardial ischemia...stress-induced ischemia. QT/RR hysteresis was calculated using a computerized...
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Hysteresis in Transport Critical-Current Measurements of Oxide Superconductors.
Magazine article from: Journal of Research of the National Institute of Standards and Technology
; We have investigated magnetic hysteresis in transport critical-current...tapes. The effect of magnetic hysteresis on the measured critical current...given field. The existence of this hysteresis is well known; however, the implications...
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TEV Hysteresis and Evaporator Characteristics.(Thermostatic expansion valves)
Magazine article from: Air Conditioning, Heating & Refrigeration News
; ...to the movement of the pushpins, causes hysteresis. All TEVs are affected by hysteresis. A certain amount is needed, as we will...area between the two curves is called the hysteresis band. [Figure 2 ILLUSTRATION OMITTED...
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ST/HR hysteresis: Exercise and recovery phase ST depression/heart rate analysis of the exercise ECG
Magazine article from: Journal of Electrocardiology
; ...depression/heart rate (ST/HR) hysteresis is a recently introduced novel computer...direction and average magnitude of the hysteresis in ST depression against HR during the...each patient, the values for ST/HR hysteresis, ST/HR index, end-exercise ST...
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Understanding corneal hysteresis fundamental in grasping biomechanics concepts
Magazine article from: Ophthalmology Times
; ...biomechanics measurements known as the corneal hysteresis (CH) and corneal resistance factor. What is corneal hysteresis? Like many of his colleagues, Daniel...questions. "Now that I understand corneal hysteresis better, I am intrigued and motivated...
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Effects of rapid and slow potassium repolarization currents and calcium dynamics on hysteresis in restitution of action potential duration
Magazine article from: Journal of Electrocardiology
; ...junctional sarcoplasmic reticulum (JSR) on hysteresis in restitution of action potential duration...kr^ increased slope of restitution, hysteresis loop thickness, and delay between peaks...sarcoplasmic reticulum had less effect on hysteresis than transfer of Ca into JSR. Faster...
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