Doping is the process of introducing impurities into the silicon, whose presence creates additional charge carriers to be used in conduction. |
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Patients with cardiac involvement may present with pericarditis, myocarditis, or cardiac conduction blocks. |
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The alpha and beta pathways typically allow for directed impulse conduction through the AV node. |
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For the coherer to be ready to detect a new pulse of energy, conduction had to be stopped by jarring the granules. |
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The timing of the first and second switches is arranged to prevent simultaneous conduction of the synchronous rectifiers. |
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Heat is exchanged between the body and its surrounding environment by physical transfer involving conduction, convection, and radiation. |
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Thus the nervous system is responsible for rapid conduction of information throughout the body. |
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In addition to electrical conduction, the cells are polarized by the force of applied voltage. |
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Some volatile substances can reduce sinoatrial node automaticity and suppress cardiac conduction. |
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Tin oxide, which has an excess of electrons available for conduction, is an n-type semiconductor. |
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This is another idea that in theory should help increase thermal conduction between the base and the fins, since they are all one piece. |
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The electrons in the conduction band of this metal have no restrictions in their movement. |
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Insulators may be thought of as semiconductors with very large gaps between the valence and conduction bands. |
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Both of those methods impart energy to the electrons, causing them to break from their bonds and jump into the conduction band. |
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The gradual prolongation of the AH interval is a feature that rarely occurs in accessory pathway conduction. |
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Carbon nanotubes, unmodified and modified through charged atoms, were simulated in water, and their water conduction rates determined. |
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This number is explained in terms of channel architecture and conduction mechanism. |
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Conductive hearing loss occurs when sound conduction is impeded through the external ear, the middle ear, or both. |
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What you get is an absolutely enthralling listen, one built with rapturous conduction and taut harmony. |
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The results show a dislocation of the nanotube indicative of a possible disassembly process that may influence the channel conduction. |
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After nerve conduction tests the diagnosis was peripheral sensory neuropathy. |
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The alkaloid also acts on the myocardium to depress conduction and irritability, as well as to prolong the myocardial refractory period. |
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In some patients the atrioventricular node allows retrograde conduction of ventricular impulses to the atria. |
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This is due to the physiologic changes that occur with aging, in which the heart's conduction system becomes disordered. |
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In first degree block there is a delay in conduction of the atrial impulse to the ventricles, usually at the level of the atrioventricular node. |
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A 29-year-old woman was admitted to the hospital with complete atrioventricular conduction block and severe congestive heart failure. |
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Its one-directional conduction gave it the ability to convert alternating current into direct current. |
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The audiogram measures air conduction and bone conduction and presents them graphically across the hearing frequencies. |
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Its most important action is its ability to block the initiation or conduction of the nerve impulse following local application. |
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The carrier signal causes galvanic conduction to occur through the skin of the patient. |
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If aluminium causes direct neuronal death, why would this lead to slowing of conduction along the axons of the optic nerves? |
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Myelination increases substantially the speed of conduction of nerve impulses. |
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Disturbances in this ration can alter cardiac rhythms, transmission and conduction of nerve impulses, and muscle contraction. |
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Physical examination was supplemented by laboratory tests, which included pulmonary function and peripheral nerve conduction. |
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Most cardiac arrhythmias result from disorders of impulse formation, impulse conduction or a combination of both. |
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The normal conduction of action potentials is reliant upon sodium channels. |
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In other words, water vapor has a low heat capacity and poor thermal conduction. |
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The tuning fork is placed against the mastoid process to measure the conduction of sound by bone. |
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Sound normally reaches the cochlea via the ear canal and the middle ear, but it may also reach the cochlea through bone conduction. |
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It was found that sound conduction through dolphin tissues was more effective than that in a northern fur seal in a wide frequency range. |
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Furthermore a database having typical sound conduction components for a number of typical hearing impairments is provided. |
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We have seen how the normal outer and middle ears participate in sound conduction. |
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A hot copper cube in contact with a cold iron cube would, for example, heat it primarily by conduction. |
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A mixture optimized for a single property, such as heat conduction, looks like blobs of one material suspended in another. |
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So unlike marble, the main cooling process for carpet is not conduction, but convection. |
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Can we predict the temperature profile from the known geometry and heat conduction of water? |
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Their research shows that the surfactant layer must be analyzed in terms of its vibrational couplings, rather than by ordinary heat conduction. |
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Electrical conduction is the net motion of electric charge, and it cannot take place without the motion of matter on some scale. |
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The disk is cooled primarily by conduction across the gap region, which can be filled with high-thermal-conductivity gases like helium. |
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In solids that conduct electricity, heat conduction is further enhanced by the drift of free electrons. |
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Better heat conduction allows cooler internal operating temperature and hence less cracking and longer life. |
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Heat will only leave the container by radiation, convection and conduction if the temperature of the container is higher than the surroundings. |
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Excitons are created in semiconductors when a laser field promotes an electron from the valence band to the conduction band. |
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This is achieved by the propagation of the chemotactic signal, in a manner rather similar to the conduction of a nerve impulse. |
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So far, electron conduction has only been found in a few, high electron-affinity organic semiconductors, until now. |
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A triac is an AC conduction device and may be thought of as two antiparallel thyristors monolithically integrated onto the same silicon chip. |
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The infolded grooves served to produce a strong tooth attachment, and it is unlikely that they functioned in venom conduction. |
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In the conventional view of metallic ferromagnetism, it is driven by 'exchange energy' between conduction electrons in rigid bands. |
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Electrodes positioned at various sites in the heart can give only limited data about intracardiac conduction during sinus rhythm at rest. |
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Nor did they understand how the insulated walls of the cooker diminished conduction and convection of the heat inside the unit. |
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Egophony results from the change in frequency dependence of sound conduction when fluid replaces air and is heard over consolidation or pleural effusion. |
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These blankets then are covered with sheets that are warmed by radiant heat lamps until the neonate is brought into the room to prevent heat loss through conduction. |
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The blind mole rat, S. ehrenbergi, receives seismic vibrations by pressing its lower jaw against the ground to transmit vibrations to the inner ear by bone conduction. |
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Other drugs, such as local anaesthetics, those that interfere with nerve conduction, and anticonvulsants have been found to reduce symptoms in some people. |
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Strychnine, atropine, cocaine, certain snake venoms, and other poisons cause convulsions, resulting from altered nerve conduction in the brain and spinal cord. |
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Iron, cobalt and nickel are the best known metallic magnets, and their magnetic properties are governed by the conduction electrons that are free to move throughout the metal. |
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The connection is provided by utilizing a conductive adhesive wherein the conduction is provided by metal particles which have exposed palladium thereon. |
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Certain psychotropic medications and somatic medications can increase the risk of lethal torsade de pointes through a mechanism of blocking cardiac conduction channels. |
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A normal heart rhythm is one in which each heartbeat originates in the sinus node and proceeds normally through the rest of the body's electric conduction system. |
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It is the influx of sodium into the cell that is responsible for generating an action potential, which causes depolarization and conduction of the nerve impulse. |
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Classes will be offered for the violin, viola, cello, flute, oboe, trumpet, trombone, and bassoon as well as composition and orchestral conduction. |
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The bundles contain both xylem and phloem, and are marked by the presence of large canals known as carinal canals, which also function in water conduction. |
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Now physicists at Northwestern University show that, using the fact that electrons carry heat as well as charge, the conduction of heat may be similarly tuned. |
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The thermal emissions come to the surface through heat conduction in a few milliseconds as a function of the pulse energy and the synchronized signal capture. |
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Damage to the Schwann cells leads to impairment of nerve conduction. |
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In a subset of patients monitored by serial testing, abnormalities in phrenic nerve conduction and diaphragmatic excursion normalized by 9 months after surgery. |
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Thus, we evaluated these patients for the presence of antibodies to 9 neural antigens, as well as for evidence of abnormalities in peripheral nerve conduction. |
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Cocaine blocks the initiation or conduction of nerve impulses following local application by blocking depolarization via sodium influx inhibition. |
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If the slowing of nerve conduction affects all nerves roughly equally the diagnosis is likely to be the demyelinating form of Charcot-Marie-Tooth disease. |
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A further burden is the high content of neurofilament protein susceptible to oxidative and nitrative changes leading to misfolding and aggregations and poor nerve conduction. |
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This kind of cell is better for fluid conduction than physical support. |
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A fluid handling port array includes at least one fluid conduction bore. |
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The laser light lifts electrons from the valence band into the conduction band, where they travel freely when a voltage is applied to the semiconductor. |
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Electrodiagnostic assessments such as needle electromyography and nerve conduction studies are useful in differentiating peripheral neuropathy from radiculopathy or myopathy. |
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In this section, we describe the energetics involved in ion conduction. |
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In nonpeak periods, when the heat pump is not operating, the thermal energy stored in the ring is released into the ground by heat conduction. |
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Using the inhomogeneity model, the number of electrons in the bound and conduction band regions are calculated. |
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This upwelling magma then cools and solidifies by conduction and convection of heat to form new oceanic crust. |
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Thomson was awarded the 1906 Nobel Prize in Physics for his work on the conduction of electricity in gases. |
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Feedback latency from V2 depends on interareal conduction velocity and distance. |
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Lack of the effect pulsed low-intensity infrared laser irradiation on nerve conduction in the human superficial radial nerve. |
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Additional conduction delay from endocardium to epicardium then moves the J wave out of the QRS complex. |
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Sensorimotor polyneuropathy was diagnosed by electroneurography with slightly reduced nerve conduction velocities and increased F wave latencies. |
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Nerve conduction studies, electromyography and sympathetic skin response in Fabry's disease. |
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Sections done in the stem did not present any alteration in the conduction tissues of xylem, phloem and aerenchyma. |
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Muscle cramps begin with fasciculations or muscle twitches and are felt to be related to nerve conduction rather than the muscles themselves. |
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Histologically speaking, internodal conduction tracts are shown in the composition of the interatrial septum. |
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Besides around 200 invigilating staff was also deployed and assigned the task of smooth conduction of the test. |
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Congenital heart block refers to complete or incomplete dissociation of atrial and ventricular contractions owing to conduction abnormalities. |
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This suggests a dominant phonon conduction behavior like most polycrystalline materials. |
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Penetration test conduction in Infrastructure, Web application, Social engineering and Physical security. |
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Pycnogenol efficiency on glycaemia, motor nerve conduction velocity and markers of oxidative stress in mild type diabetes in rats. |
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In photocatalysis, light energy from a UV-A light source excites an electron from the valence band of the catalyst to the conduction band. |
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C fibers are unmyelinated nerves, about 1 micron in size, of low conduction velocity. |
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Motor and sensory nerve conduction are affected differently by ice pack, ice massage, and cold water immersion. |
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Cardiac evaluation with electrocardiography must be done for conduction disorders in patients using chloroquine for rheumatic diseases. |
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Bisphenol A may slow electrical conduction in the heart, according to a 2014 laboratory experiment. |
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Thus, if the carinal canals play a role in conduction, the metaxylem tracheary elements must be responsible for conduction across nodal regions. |
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We found that the human Schwann cells formed relatively extensive myelin and that previously obstructed nerve impulse conduction improved. |
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Waxman was inspired to devote his life to studying nerve impulse conduction in normal, demyelinated, and regenerating nerve fibers. |
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Xylem and phloem tissues are involved in the conduction processes within plants. |
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Moreover, the position of the conduction band edge of the monodoping impedes the photocatalytic efficiency. |
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These IXYS MOSFETs provide for very low conduction and switching losses, and are avalanche rated for hard-switching applications. |
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The difference of 0.02 sec. may be attributed to conduction from the outer surface of the column to the sphincter embedded in its mesogloea. |
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The company's PowerFLOW software combined with its PowerTHERM simulates both the heat conduction in solids as well as thermal radiation effects. |
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The board of the authority has expressed the view that the 2011 census should be the last conduction on the traditional basis. |
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The bandgap of a material is the energy difference between electrons residing in the two most important states of a material-valence band states and conduction band states. |
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These Lubricants come in various forms, thermic fluids which are resistant to thermal conduction and hydraulic fluids which provide good viscosity resistance. |
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Sensory nerve conduction studies were performed antidromically. |
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On day 5, an electromyography was performed and showed mild decreased conduction velocities suspicious for infantile myasthenia gravida but not consistent with botulism. |
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However, authors detected a significantly decreased sensory conduction velocity and action potential amplitude in median, ulnar, and sural nerves. |
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In nerve conduction analysis, the median and ulnar nerves from the upper extremity and tibial, peroneal and sural nerves from the lower extremity were analyzed. |
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Lithospheric thinning also allows the asthenosphere to rise closer to the surface, heating the overlying lithosphere by conduction and advection of heat by intrusive dykes. |
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In a semiconductor material like silicon, something very interesting happens because the current is not only carried by electrons in the conduction band. |
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Among his topics are basic means, transient conduction, turbulent flow, heat exchangers, participating medium, phase change, and mass transfer and chemically reactive flows. |
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Since the gaseous Sun has no lattice, it cannot support either thermal conduction through such a structure or energy transfer through electronic conduction bands. |
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Recent findings showed that AF induces atrial electrical remodeling, increases dispersion of atrial effective refractory period and decreases atrial conduction velocity. |
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Re-entrant circuits require two pathways capable of conduction with unilateral conduction delay in one limb and an intervening conduction barrier. |
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International Rectifier, IR, introduces a single-chip fluorescent lamp ballast device with an active, critical conduction mode, boost-type power factor correction method. |
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The small microphone and FM transmitting unit is worn on the anacoustic ear and transmits the signal to the intraoral device, providing bone conduction to the good ear. |
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Sommerfeld also did detailed work on wave mechanics, and his theory of electrons in metals proved valuable in the study of thermoelectricity and metallic conduction. |
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The myelin sheath, produced by cells called oligodendrocytes, wraps around the axons of nerves and helps speed activity and insulate electrical conduction. |
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