(n.) Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree.
(n.) The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon.
(n.) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc.
(n.) Height of degree; highest point or degree.
(n.) Height of rank or excellence; superiority.
(n.) Elevation of spirits; heroics; haughty airs.
Example Sentences:
(1) The development of pulmonary edema in high-altitude residents with upper respiratory infections and no antecedent low-altitude journey is consistent with the presence of other factors such as inflammation, which may play a role in the pathogenesis of the edema.
(2) It is shown that the combined effects of altitude and wind assistance yielded an increment in the length of the jump of about 31 cm, compared to a corresponding jump at sea level under still air conditions.
(3) Eight men and eight women each performed peak oxygen intake tests on a cycle ergometer breathing ambient air and a mixture of 12% oxygen in nitrogen (equivalent to an altitude of 4400 m) in the two experiments.
(4) Treatment and prevention of menstrual disorders of women at high altitudes could be carried out by invigorating Qi, regulating blood, promoting the flow of Qi, by warming the channel and regulating Zang and Fu, etc.
(5) 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.
(6) Previously, we found resting metabolic rate increased at high altitude but the mechanism and consequences of this increase were unclear.
(7) These data suggest that the positive relationship between pelleted feeds and incidence of ascites observed at high altitudes also exists at lower elevations.
(8) The dogs were housed in gravel-based, outdoor pens with doghouses in a high-altitude, high-sunshine level environment.
(9) Cabin altitudes ranged from sea level to 8,915 feet (2717 m).
(10) Rats were exposed to crhonic hypobaric hypoxia at a simulated altitude of 4250 m for 3, 6, 9, 12, 20, and 35 days.
(11) These data indicate that, compared with animals at sea level, animals at altitude have an increased body burden of COHb and will attain the COHb level associated with the National Ambient Air Quality Standard for CO more quickly when breathing CO.
(12) During rest at high altitude, a 32% decrease in coronary blood flow was largely offset by a 28% increase in coronary arterial O2 extraction to maintain myocardial O2 delivery.
(13) The importance of including highaltitude pulmonary edema in the differential diagnosis of any patient who is admitted with coma after a sojourn at high altitude is stressed.
(14) At altitude, temazepam led to less wakefulness and to drowsy sleep--there were no prolonged sleep latencies.
(15) We investigated acute and chronic hypoxic pulmonary pressor responses in two groups of calves, one bred to be susceptible, the other resistant to high-altitude pulmonary hypertension.
(16) The following species features of this animals are associated with their adaptation to high-altitude hypoxia: organization of alpha-granules, mitochondria, the contractile system (microtubes, F-actin), ovoid form of platelets.
(17) Therefore, myocardial hypoxia is not the basis for the decrease in cardiac stroke volume at high altitude reported previously and also observed in the present study.
(18) Thus, the amount of lung vascular smooth muscle inherent within each species is a major determinant of the pulmonary hypertensive response to high altitude and contributes to the interspecies variability in this response.
(19) The turnover time of NE in the hypothalamus remained unchanged, regardless of the altitude, while in the rest of the brain the rate constant of neurotransmitter elimination decreased inversely as a linear function of the degree of hypoxia.
(20) Rats trained to the high-altitude hypoxia displayed signs of intensification of both the plastic and lytic processes; one of these processes prevailed in different cells.
Median
Definition:
(a.) Being in the middle; running through the middle; as, a median groove.
(a.) Situated in the middle; lying in a plane dividing a bilateral animal into right and left halves; -- said of unpaired organs and parts; as, median coverts.
(n.) A median line or point.
Example Sentences:
(1) The mean and median values in the nondiabetic group are higher than in previously published reports.
(2) However, time in greater than 21% oxygen was significantly longer in infants less than 1000 g (median 30 days, 8.5 days in patients greater than 1000 g, p less than 0.01).
(3) Standard nerve conduction techniques using constant measured distances were applied to evaluate the median, ulnar and radial nerves.
(4) Only candidacidal activity was enhanced in FCA-elicited peritoneal macrophages (median C. albicans killed 28% versus 16% for resident peritoneal macrophages, p less than 0.01).
(5) Local application of 8-OH-DPAT (0-5 micrograms) into the median raphe nucleus, facilitated male rat sexual behavior, as evidenced by a decrease in number of intromissions preceding ejaculation and in time to ejaculation.
(6) Median effect analysis was applied for the evaluation of in vitro effect by the growth inhibition, and the in vivo effect by comparison of the increase of life span (ILS) in a combined group with the sum of ILS's in 2 single agent groups.
(7) Median time for ventilatory support was 90 minutes after transfer to the area.
(8) As of November, 1988 after a median observation period of 34 months, 174 of the 256 patients (68%) were alive, 11 (4%) dead and 71 (28%) lost to follow-up.
(9) Unilateral VNAB lesions induced similar alterations but these were restricted to the ipsilateral PVN and median eminence.
(10) SPRs were elicited either by stimulating the reticular formation or the distal end of the median nerve.
(11) The criteria for sero-positivity was determined from the median antibody concentration in a group of 368 non-endoscoped control patients.
(12) With a median follow-up of 6 years, 32 (20%) of 156 patients who achieved complete remission have relapsed.
(13) The median survival after radiotherapy is 17.4 months.
(14) But the median survival time was 30.7 months in Arm A and 24.5 months in Arm B, and significantly longer in Arm A until 10 months.
(15) The median functional protein S of these patients was 71% (40-101%).
(16) Using the MTT assay and analyzing the data using the median-effect principle, we showed that synergistic cytotoxic interactions exist between CDDP and VM in their liposomal form.
(17) At concentrations below the respective median for each variable, odds ratios of between 1.42 and 1.67 were calculated whereas at concentrations above the respective medians the odds ratios ranged from 4.50 to 6.33 (P less than 0.001).
(18) The median blood levels were lower in hyperacidic subjects and higher in hypoacidic patients; the urinary excretion of the digitalis compound showed no essential differences.
(19) Irradiation of the skin overlying the median nerve at the wrist in humans with a low power (1 mW; 632.5 nm) helium-neon laser produced a somatosensory evoked potential obtained at Erb's point.
(20) Most of the bilateral lung lesions were removed through a median sternotomy so as to avoid staged bilateral thoracotomy.