(n.) An instrument for measuring or comparing electrial potentials or electro-motive forces.
Example Sentences:
(1) The system involves computer analysis and graphic display of vectors created from rotational and linear potentiometers that are activated by listeners using a hand-held pointer as they track an acoustic event.
(2) Potentiometer settings offer variations in dosing schedules, distribution volumes as well as in absorption and elimination rate constants.
(3) By manipulation of two simple potentiometer controls, any temperature gradient between 0 and 50 C could be obtained.
(4) The lower strip (D, displacement of the handle) was moved in proportion to angular displacement of the handle by a potentiometer coupled to the handle axis.
(5) Subjects were asked to compensate this geometrical distortion by adjusting a potentiometer.
(6) The instrument is designed to adjust to trunk movement that might occur in the sagittal and coronal planes while transmitting the torque that results from rotation in the horizontal plane directly to the active potentiometer of the electrogoniometer.
(7) When there is a modification in frequency at the onset of the placing reaction relative to activity during the unloading reaction, the beginning of this change occurs after the onset of the movement as recorded by a potentiometer placed at the elbow joint.
(8) We present the design of an instrumentation biopotential amplifier that, (a) combines the ac coupling and high input impedance of an ac-coupled buffer with the CMRR of a simple differential amplifier or a monolithic instrumentation amplifier, (b) improves the CMRR by using a potentiometer without requiring either precision resistors or high-CMRR op amps, (c) illustrates how to calculate the CMRR for differential-input stages for either differential output or single-ended output.
(9) The device used to apply electrical current to the heart was constructed using a 9-volt battery, a push-button switch, and a 100-ohm potentiometer with calibrated dial.
(10) twisting of the forearms were transduced linearly by foam-cushioned clamps at the wrists and a potentiometer into a direct current of 0-2,7 V, respectively.
(11) The series resistance value, obtained very quickly by the method described, may be used in setting the compensation potentiometer to offset this resistance in voltage-clamp measurements.
(12) The course of the titration is followed potentiometrically with a glass and calomel electrode coupled and recorded automatically with a suitable registration potentiometer.
(13) Specifically, potentiometers and Hall effect sensors, capacitive force transducers, inductive displacement transducers (LVDTs), and various position resolvers are discussed.
(14) A potentiometer strapped to the knee recorded the angle of the joint, the output signal being displayed on an oscilloscope.
(15) By recording the rotation of the hinges using potentiometers, the position of the end-point of the palpator can be calculated.
(16) The translational scanning action is sensed by a position potentiometer and combines with the ultrasonic B-mode echoes to produce a cross-sectional image of the wall.
(17) By installing the two potentiometers on the pantographic arm and electrical switches, the position of the test target and the setting of the four levers which defines the size and the brightness of the test target were transferred directly to the computer.
(18) It includes a probe pack, a measuring pack and an automatic potentiometer.
(19) Continuous recording of excursion related to joint motion was obtained using a rotary potentiometer and an electrogoniometer.
(20) Two rating scales, a seven-stepped non-verbal scale on a Pain-Track logger, and a 100-mm VAS on a potentiometer, were found valid for continuous recording of itch.
Voltage
Definition:
(n.) Electric potential or potential difference, expressed in volts.
Example Sentences:
(1) RNAs encoding a wild-type (RBK1) and a mutant (RBK1(Y379V,V381T); RBK1*) subunit of voltage-dependent potassium channels were injected into Xenopus oocytes.
(2) Modulation of the voltage-gated K+ conductance in T-lymphocytes by substance P was examined.
(3) Serially sectioned rabbit foliate taste buds were examined with high voltage electron microscopy (HVEM) and computer-assisted, three-dimensional reconstruction.
(4) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
(5) They possess at least seven distinct voltage-activated conductances.
(6) The junctional currents were already constant 1 ms after step changes in the junctional voltage; this was three orders of magnitude faster than the other known examples of voltage-controlled gap junctions between embryonic cells.
(7) omega-Conotoxin GVIA is a peptide purified from the venom of the marine snail, Conus geographus, that specifically blocks voltage-sensitive calcium channels in neurons.
(8) Detailed voltage-clamp measurements revealed that ABA-activated ion currents could be reversed by depolarizations more positive than -10 mV.
(9) In contrast, the fast block by internal TEA+ appeared virtually independent of voltage.
(10) For those synapses that were close to the soma the time constant for decay for the non-NMDA component, which was voltage insensitive, ranged from 4-8 ms. 7.
(11) The open probability is weakly voltage dependent, large at zero and positive potentials (cytoplasm minus SR lumen), and decreasing at negative potentials.
(12) Using serial-sectioning techniques for conventional transmission and high-voltage electron microscopy, we characterized the ultrastructural features and synaptic contacts of the sensory cell in tentacles of Hydra.
(13) Using the rate coefficient values found by SCoPfit, we simulated a voltage-clamp experiment with both models running under their Na(+)-Na+ exchange mode, and we computed the transient currents generated following voltage steps in both depolarizing and hyperpolarizing directions from a basic potential of -40 mV.
(14) In contrast to the channel closing rate, the opening rate is relatively insensitive to voltage.
(15) [8(-14)C]Inosine monophosphate formed was separated by high-voltage electrophoresis and radioactivity was measured by liquid-scintillation counting.
(16) Acute in vitro application of ADH to mTAL from chronically treated animals induced a further small increase in voltage (22%).
(17) Halothane variably increased the current produced (and therefore the estimated oxygen tension) at all polarizing voltages in saline solution equilibrated with either N2 or air.
(18) According to the duration of filtered QRS (fQRS), to the voltage of root mean square of the terminal 40 ms (RMS 40) and to the duration of low amplitude terminal components of the sinus cycles, ventricular late potentials were detected in nine out of 29 subjects.
(19) omega-Conotoxin (0.1 microM), a potent blocker of N-type voltage-sensitive calcium channels, reduced by 50-70% the evoked release of both peptides.
(20) In a direct test of the hypothesis that the M2 coat protein of influenza A can function as a proton translocator, we incorporated a synthetic peptide containing its putative transmembrane domain into voltage-clamped planar lipid bilayers.