(n.) The process of becoming, or the state of being, acclimated, or habituated to a new climate; acclimatization.
Example Sentences:
(1) Acclimation to 10 degrees C or 30 degrees C resulted in large differences in the dimensions of villi.
(2) Therefore, the hypothesis of a fetal sensori-neural hearing loss due to oxygen lack was tested in the following animal models: a) Adult cats to which feline red blood cells were infused thus causing a polycythemia similar to fetal conditions; b) Adult rats acclimated to altitude in a hypobaric chamber, inducing erythropoiesis with elevated hematocrit and hemoglobin; c) Neonatal guinea pigs and goats studied when they were less than 12 hours old so that the fetal compensatory mechanisms were still present.
(3) Thermogenic response to noradrenaline was markedly increased in cold-acclimated brown adipocytes, while it was reduced in heat-acclimated ones.
(4) Adult males acclimated to an LD 14:10 photoperiod were distributed in five experimental groups: intact controls (NO), sham-pinealectomized (S), sham-pinealectomized with black plastic shielding of the pineal region, pinealectomized (PX), and pinealectomized with the operated region shielded.
(5) In the cold-acclimated rats acute cold exposure increased k as well as turnover rate, but not acute immobilization stress.
(6) No or only a slight increase in sweating activity was observed following the acclimation procedures with face fanning, whereas similar procedures without face fanning had resulted in substantial enhancement of sweating activity in most of the cases, which had been attributed mainly to adaptive changes in central sudomotor activity (as indicated by a shift of the regression line relating Fsw to Tb).
(7) G. cahawbensis cytosol malate dehydrogenase activity increased significantly with increasing acclimation temperature, while G. cochliaris malate dehydrogenase activity remained unchanged.
(8) In hypoxia-acclimated guinea pigs, specific VE was 30% higher than that of control animals due to an elevation in VT; however, VO2 was similar in both groups of animals.
(9) The results of these experiments suggest that the enhanced cold-tolerance of diabetic cold-acclimated rats could be related to the increased sympathetic activity and enhanced insulin sensitivity in thermogenic tissues, such as brown fat.
(10) This species preferred a higher temperature than its acclimation temperature for those acclimation temperatures ranging from 6 degrees to 26 degrees C. When acclimated to 30 degrees and 33 degrees C, the crayfish preferred a lower temperature than its acclimation temperature.
(11) It was suggested that the extent of participation of these factors was not necessarily the same between the cold-acclimated and the stressed organisms.
(12) Maximal response in total epididymal fat cells to noradrenaline was increased in cold acclimation and not changed in heat acclimation at increased numbers of adipocytes in both cold-acclimated and heat-acclimated animals.
(13) NA-induced increase in the plasma NEFA level was less in extent in cold-acclimated rats than in warm-adapted ones.
(14) The role of the rabbit's ear in cold acclimation was studied by varying the temperature of a climatic room in the range from -10 to +30 degrees C; The skin temperature in a nonanesthetized rabbit's ear showed a characteristic response to changes in ambient temperatures; plotting the ear temperature against the ambient temperature yielded an S-shaped curve.
(15) In accordance with data taken from literature, this finding suggests a compensatory enhancement of in vivo protein synthesis to occur in trout during cold acclimation.
(16) To investigate the role of neurohumoral factors in acclimation of mussel muscle to a lowered salinity, studies have been made on the reaction of the intact mussel muscle and that of isolated muscle to change in the salinity from 26% to 10%.
(17) Lugworms, Arenicola marina (L.), acclimatized at 16-17 degrees C, were acclimated at temperatures between 5.3 and 25.7 degrees C for 96 h. Whereas in vitro Arenicola blood behaves like a Rosenthal system, in vivo prebranchial blood does not: the higher the acclimation temperature, the lower the pHv and [HCO3]V, PVCO2, remaining practically constant.
(18) In acclimated dehydrated rats, CO distribution to thermoregulatory areas did not change while perfusion of the splanchnic area decreased.
(19) In the hamster, heat acclimation reduces liver weight more than it does body weight.
(20) The above findings suggest that skeletal muscle Mb may be partly involved in an enhanced thermogenesis in cold acclimation by favouring an oxidative capacity of muscles.
Acclimatization
Definition:
(n.) The act of acclimatizing; the process of inuring to a new climate, or the state of being so inured.
Example Sentences:
(1) Each experiment was designed as a 2 x 2 x 3 factorial with normal birds and acclimatization birds fitted with harnesses or housed over collection trays and given one of three dietary treatments.
(2) The effects of age and acclimatization in the healthy and unhealthy elderly and the very young are reviewed briefly as is also the possibility that air conditioning may have an adverse effect on acclimatization.
(3) Steady-state responses obtained after the 3rd h of immersion in never-immersed (NI) penguins were compared with those of penguins acclimatized to seawater temperature (A).
(4) Fish acclimatized to 2 degrees C (cold-adapted enzyme) and 17 degrees C (warm-adapted enzyme) show different relative distributions of the three NADP-isocitrate dehydrogenase isoenzymes; this has been demonstrated with electrophoresis and electrofocusing techniques.
(5) Lugworms, Arenicola marina (L.), acclimatized at 16-17 degrees C, were acclimated at temperatures between 5.3 and 25.7 degrees C for 96 h. Whereas in vitro Arenicola blood behaves like a Rosenthal system, in vivo prebranchial blood does not: the higher the acclimation temperature, the lower the pHv and [HCO3]V, PVCO2, remaining practically constant.
(6) The results were reversed following heat acclimatization; i.e.
(7) Acclimatization to high altitude increased total sleep time, stage 3 duration and percentage of paradoxical sleep.
(8) Group A attended the sleep laboratory for three nights: acclimatization, a baseline night, and one night of physostigmine infusion.
(9) We conclude that in adult goats, time-dependent changes in ventilatory response to CO2 during acclimatization to prolonged hypoxia are not primarily attributable to alterations in endogenous opioid peptide activity.
(10) The glutathione S-transferase activity in hepatopancreas of the American red crayfish Procambarus clarkii after 15 days' acclimatization in tap water aquaria was measured in specimens collected monthly for a whole year, and shows seasonal variation.
(11) The effect of heat acclimatization on aerobic exercise tolerance in the heat and on subsequent sprint exercise performance was investigated.
(12) This was noted both in acclimatized and in unacclimatized rats.
(13) Both groups displayed changes typical of heat acclimatization over the 7-day period, with significant decreases in final rectal temperature (Tr) and heart rate (HR) being evident, but no change in sweat loss.
(14) Five highly trained distance runners (DR) were observed during controlled 90-min thermoregulation trials in spring (T1) and late summer (T2) to document the nature of heat acclimatization in the northeastern United States.
(15) Heat acclimatization might reduce the adverse effect of heat stress on potassium and phosphate absorption.
(16) We have investigated the vasoreactivity of isolated pulmonary resistance vessels of rats after acclimatization to chronic hypoxia in a normobaric, hypoxic chamber.
(17) PO rats and ADPO female Wistar rats were cold acclimatized to 5 degrees C for 2 operated and then treated exactly like the lesioned rats.
(18) Tyrosine hydroxylase (TH) and phenylethanolamine-N-methyltransferase (PNMT) activities were assayed in adrenal glands of the following groups of the Alaskan red-backed vole (Clethrionomys rutilus dawsoni): 1) laboratory reared at 20 degrees C and 2) exposed to 5 degrees C for 1, 3, 7, and 28 days; 3) wild, summer acclimatized; 4) wild, fall acclimatized; and 5) wild, winter acclimatized.
(19) Acclimatized rats showed an increased activity of mitochondrial glutamate dehydrogenase without changes in glycolytic enzyme activity in skeletal muscle, heart and liver.
(20) Glucose also lowered the steady potential, whatever the previous acclimatization temperature, when the external sodium concentration was low.4.