(n.) A force in nature which is recognized in various effects, but especially in the phenomena of fusion and evaporation, and which, as manifested in fire, the sun's rays, mechanical action, chemical combination, etc., becomes directly known to us through the sense of feeling. In its nature heat is a mode if motion, being in general a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponderable fluid, to which was given the name caloric.
(n.) The sensation caused by the force or influence of heat when excessive, or above that which is normal to the human body; the bodily feeling experienced on exposure to fire, the sun's rays, etc.; the reverse of cold.
(n.) High temperature, as distinguished from low temperature, or cold; as, the heat of summer and the cold of winter; heat of the skin or body in fever, etc.
(n.) Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high color; flush; degree of temperature to which something is heated, as indicated by appearance, condition, or otherwise.
(n.) A single complete operation of heating, as at a forge or in a furnace; as, to make a horseshoe in a certain number of heats.
(n.) A violent action unintermitted; a single effort; a single course in a race that consists of two or more courses; as, he won two heats out of three.
(n.) Utmost violence; rage; vehemence; as, the heat of battle or party.
(n.) Agitation of mind; inflammation or excitement; exasperation.
(n.) Animation, as in discourse; ardor; fervency.
(n.) Sexual excitement in animals.
(n.) Fermentation.
(v. t.) To make hot; to communicate heat to, or cause to grow warm; as, to heat an oven or furnace, an iron, or the like.
(v. t.) To excite or make hot by action or emotion; to make feverish.
(v. t.) To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.
(v. i.) To grow warm or hot by the action of fire or friction, etc., or the communication of heat; as, the iron or the water heats slowly.
(v. i.) To grow warm or hot by fermentation, or the development of heat by chemical action; as, green hay heats in a mow, and manure in the dunghill.
(imp. & p. p.) Heated; as, the iron though heat red-hot.
Example Sentences:
(1) Tryptic digestion of the membranes caused complete disappearance of the binding activity, but heat-treatment for 5 min at 70 degrees C caused only 40% loss of activity.
(2) A new and simple method of serotyping campylobacters has been developed which utilises co-agglutination to detect the presence of heat-stable antigens.
(3) The 40 degrees C heating induced an increase in systolic, diastolic, average and pulse pressure at rectal temperature raised to 40 degrees C. Further growth of the body temperature was accompanied by a decrease in the above parameters.
(4) The effect of heat on glucocorticoids of plasma was not significant.
(5) This Mr 20,000 inhibitory activity was acid and heat stable and sensitive to dithiothreitol and trypsin.
(6) There is a relationship between the duration of stimulation (t) and the total heat production (H) of the type H = A plus bt, where A and b are constants.
(7) This suggests that there was a deterioration of the vasoconstrictor response and indicated a possible effect of heat at the receptor or effector level.
(8) While both inhibitors caused thermosensitization, they did not affect the time scale for the development of thermotolerance at 42 degrees C or after acute heating at 45 degrees C. The inhibitors of poly(ADP-ribosylation) radiosensitizers and thermosensitizers may be of use in the treatment of cancer using a combined modality of radiation and hyperthermia.
(9) The binding to DNA-cellulose of heat-activated [3H]RU486-receptor complexes was slightly decreased (37%) when compared with that of the agonist [3H]R5020-receptor complexes (47%).
(10) By means of rapid planar Hill type antimony-bismuth thermophiles the initial heat liberated by papillary muscles was measured synchronously with developed tension for control (C), pressure-overload (GOP), and hypothyrotic (PTU) rat myocardium (chronic experiments) and after application of 10(-6) M isoproterenol or 200 10(-6) M UDCG-115.
(11) The return of NE to normal levels after one month is consistent with the observation that LH-lesioned rats are by one month postlesion no longer hypermetabolic, but display levels of heat production appropriate to the reduced body weight they then maintain.
(12) It is the action of this protease that releases the enzyme from the membrane, as shown by the observations that protease inhibitors decreased the amount of solubilization of the enzyme, and the enzyme remaining in the membrane after heating showed much less proteolytic cleavage than that which was released.
(13) The apparent sensitivity of Escherichia coli K12 to mild heat was increased by recA (def), recB and polA, but not by uvrA, uvrB or recF mutations.
(14) Michele Hanson 'The heat finally broke – I realised something had to change …' Stuart Heritage (right) with his brother in 2003.
(15) The data suggest that inhibition of gain in weight with the addition of pyruvate and dihydroxyacetone to the diet is the result of an increased loss of calories as heat at the expense of storage as lipid.
(16) Induction of both potential transcripts follows heat shock in vivo.
(17) Lebedev punched Polonsky during a heated early recording of NTVshniki.
(18) At the site of injury heat itself causes microvascular damage.
(19) Acid-fast bacilli were isolated from 3 out of 41 mice inoculoted with heat killed bacilli.
(20) Mean run time and total ST time were faster with CE (by 1.4 and 1.2 min) although not significantly different (P less than 0.06 and P less than 0.10) from P. Subjects reported no significant difference in nausea, fullness, or stomach upset with CE compared to P. General physiological responses were similar for each drink during 2 h of multi-modal exercise in the heat; however, blood glucose, carbohydrate utilization, and exercise intensity at the end of a ST may be increased with CE fluid replacement.
Nonconducting
Definition:
(a.) Not conducting; not transmitting a fluid or force; thus, in electricity, wax is a nonconducting substance.
Example Sentences:
(1) We determined that the loss of somatosensory evoked potential amplitude may be attributed to the SOL if 30-100% of the spinal cord fibers that they displaced were rendered nonconducting.
(2) The microwave data are analysed using the Maxwell mixture theory applicable for a suspension of nonconducting, low permittivity spheres in bulk water.
(3) Protons can cross the membrane either as CHBr (nonconductive) or as CH+ (conductive), whereas Br- crosses the membrane primarily as CHBr (nonconductive).
(4) Reduction of the luminal [Cl-] from 120 to 3 mM failed to reveal any apical Cl- permeability (conductive or nonconductive) in CF cultures.
(5) The model is based on the notion that the transition between a conductive and a nonconductive state of the channel represents a local process in the protein, such as the movement of a small segment of a peptide chain or the rotation of a single amino-acid residue.
(6) The effects of conductive versus nonconductive samplers and sampling flow rate were measured as a function of particle and sampler charge levels.
(7) The slow voltage-dependent correlation time in the range of seconds is assigned to the formation of nonconducting pore precursors.
(8) The sensitivity of the measurements was increased if a nonconducting solution (isotonic sucrose) was used to isolate electrically the control from the experimental sites.
(9) The saline-filled and conductive catheter was safer in that fibrillation never occurred, while fibrillation nearly always occurred with the nonconductive catheter.
(10) Patients undergoing cardiac catheterization are particularly at risk from electrical hazards, primarily because catheters are made from nonconductive materials.
(11) A method for recording O2 concentrations in nonconducting organic media with the Clark oxygen electrode was developed.
(12) In a membrane containing many of these channels, the ratio of the number of conducting to nonconducting channels changes e-fold per 3.7 mV.
(13) The use of nonconducting materials on the mucosal side allowed us to demonstrate that apparently all epithelial cells are electrically coupled, with a mean space constant of 460 microm, and a voltage spread consistent with a thin sheet model.
(14) The relative contrast produced by nonconducting spheres in a uniform saline background was measured on the reconstructed images and used to determine system sensitivity to target volume and to the radial and vertical positions of single spheres.
(15) Following voltage-dependent activation, Drosophila Shaker K+ channels enter a nonconducting, inactivated state.
(16) The hypothesis that PT could interact with open or slow inactivated states to produce a drug-bound, long duration, nonconducting state was also tested.
(17) To examine the dynamic interrelations between conducted and nonconducted beats at different atrial rates, a unique atrial pacing protocol of functional 2:1 AV block was used in 10 patients.
(18) Class 1b drugs became rapidly attached to sodium channels after depolarization, which rendered them nonconducting, but the drugs also dissociated rapidly after repolarization so that by the end of a normal diastole nearly all channels were back to their conducting state.
(19) A nonconductive chamber was built with 1-cm-diameter electrodes placed 1 cm apart.
(20) Concealed (C) His bundle ectopic systoles (H') have been shown in man to give rise to first and second degree atrioventricular (A-V) block and to simulate nonconducted atrial premature beats (P').