(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.
Oestrus
Definition:
(n.) A genus of gadflies. The species which deposits its larvae in the nasal cavities of sheep is oestrus ovis.
(n.) A vehement desire; esp. (Physiol.), the periodical sexual impulse of animals; heat; rut.
Example Sentences:
(1) Basal 20 alpha DHP levels remained low until a sharp rise at mid pro-oestrus.
(2) Gilts that had already reached sexual maturity at the time of insemination showed a higher rate of oestrus and better litter size than immature animals.
(3) 2 Metabolism in vitro was high during met-oestrus and di-oestrus and low during pro-oestrus and oestrus; this variation in activity correlated with changes in Vmax of the enzyme without changes in Km.
(4) In spite of small corpora lutea and increased follicular activity, none of the prednisolone treated heifers showed signs of oestrogen influence, and the two animals slaughtered 26 days after the start of treatment, did not ovulate or show signs of oestrus.
(5) Serum concentrations of immunoreactive inhibin in oil-treated rats increased from metoestrus to pro-oestrus and decreased at oestrus.
(6) Only one inoculated goat became pregnant after the third oestrus.
(7) Two peaks of plasma FSH concentration were detected after the onset of oestrus.
(8) Pregnant cows showing oestrus were usually seen interacting with other oestrous cows in the sexually active group.
(9) The labelling index of rat mammary gland during oestrus, pregnancy and early lactation was studied in vitro.
(10) Ovarian activity was controlled for synchronization of oestrus by using progestagen-impregnated intravaginal sponges and multiple ovulations were induced by using exogenous gonadotrophin therapy.
(11) In the three E2 groups, 41.7, 62.5 and 37.5% of animals showed oestrus within 26 h of injection while in the control groups only one animal showed oestrus.
(12) When lergotrile mesylate was given on the morning of pro-oestrus, the LH surge was advanced.
(13) The kinetics of specific antibodies of the blood serum of sheep experimentally infested with 80, 160 and 1000 specimens of Oestrus ovis larvae was examined.
(14) On the basis of gained results it was concluded, that synchronized oestrus ewes on receiving PMSG in anoestrus season the ovarial response was more significant than in autumn breeding season.
(15) Rats were injected on D1 and killed at first oestrus.
(16) The oestrus cycle had no effect on levels of the three steroids measured.
(17) Granulosa cell responsiveness at an early (1-2 h) or late (14-16 h) stage of differentiation following the onset of oestrus [and presumably the LH surge] was studied in 16 cows.
(18) Second, the effectiveness of establishment of a cervical reservoir of spermatozoa, in ewes in which oestrus and ovulation have been controlled, has been re-examined.
(19) administered in a single dose at either 0900 h or 1800 h pro-oestrus, and on the morning of oestrus the rats were killed.
(20) Such transformation of steroid gestagens to oestrogens is likely to offer an explanation for the occurrence of oestrogen effects which had been observed during synchronised oestrus of cattle following oral application of 19-norgestagens.