What's the difference between duration and metrograph?
Duration
Definition:
(n.) The state or quality of lasting; continuance in time; the portion of time during which anything exists.
Example Sentences:
(1) Large gender differences were found in the correlations between the RAS, CR, run frequency, and run duration with the personality, mood, and locus of control scores.
(2) The difference in HDL and HDL2 cholesterol concentrations between the MI+ and MI- groups or between the MI+ and CHD- groups persisted after adjustment by analysis of covariance for the effect of physical activity, alcohol intake, obesity, duration of diabetes, and glycemic control.
(3) The active agents modestly improved treadmill exercise duration time until 1 mm ST segment depression (3%), and only propranolol and diltiazem had significant effects.
(4) However, there was no consistent protocol for the method or duration of drug administration.
(5) For each temporal position of the independent noise, discriminability was a function of the ratio of the duration of the independent noise (tau) to the total burst duration.
(6) Careful attention must be given to antibiotic choice as well as the dose and duration of therapy.
(7) We conclude that increased duration of exercise can lead to reduced PDH complex activity in rat muscles.
(8) These episodes continued for the duration of the suckling test and were enhanced when a second pup was placed on an adjacent nipple.
(9) Results demonstrate that the development of biliary strictures is strongly associated with the duration of cold ischemic storage of allografts in both Euro-Collins solution and University of Wisconsin solution.
(10) 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.
(11) It is suitable either for brief sampling of AP durations when recording with microelectrodes, which may impale cells intermittently, or for continuous monitoring, as with suction electrodes on intact beating hearts in situ.
(12) There was no correlation between disturbed gastric clearance, impaired gall bladder contraction, and prolonged colonic transit time in the patients with cardiovascular autonomic neuropathy nor was there a correlation between any disturbed motor function and age or duration of diabetes.
(13) In electrophysiological studies with neurons of Lymnaea stagnalis, THA inhibited the slow outward K+ current and consequently increased the duration of the action potentials.
(14) A study of the time-course of the response during aortic stenosis of 30 min duration showed early release of renin from the innervated kidney at a time (5 min) when little release occurred from the denervated one.
(15) The elimination half-life of most beta-agonists is relatively short, and pharmacokinetics are independent of dose and duration of treatment.
(16) IgG antibody titres to Coxsackie B1-B6 were measured in 113 insulin-dependent diabetes mellitus (IDDM) patients whose mean age was 12.2 years and mean duration of IDDM was 4.6 years, and in 87 normal sibling controls whose mean age was 13.8 years.
(17) The maximum duration of the drainage was 24 days and complete recovery was obtained in all patients without further surgical treatments.
(18) This study provides strong and unexpected evidence that one admission to hospital of more than a week's duration or repeated admissions before the age of five years (in particular between six months and four years) are associated with an increased risk of behaviour disturbance and poor reading in adolescence.
(19) The results suggest that the response continued unabated throughout the duration of exposure to hypoxia.
(20) The duration of action correlated with the elimination half-life of the drug (r = 0.87; P less than 0.003) and area under the plasma concentration curve (r = 0.72; P less than 0.03).
Metrograph
Definition:
(n.) An instrument attached to a locomotive for recording its speed and the number and duration of its stops.
Example Sentences:
(1) Inter- and intra-arch linear measurements of the resultant study casts were made using a Reflex Metrograph.
(2) The impressions were cast in dental stone and digitized using the Reflex Metrograph.
(3) The 3-D measurement with the Reflex Metrograph showed marginally better precision in the measurement of the treatment changes examined.
(4) The second method consisted of measuring the same casts using a reflex metrograph (Dm), where the co-ordinates of the points relative to two axes were recorded and the distances between various points were calculated.
(5) The reflex metrograph was used to measure arch width from study models at the start of treatment, end of treatment including retention, and at least 1 year post-treatment.
(6) In the third method, reflection holograms of the casts were made, and the same distances were measured on the holographic images (Dh) using the reflex metrograph.
(7) At defined pretreatment, post-treatment, and post-retention stages, records were collected and the study casts quantitatively measured using a reflex metrograph and an occlusal analysis programme.
(8) An investigation of these effects is described using a mannikin head fitted with an optician's trial frame, with measuring by the reflex metrograph.
(9) Two- and three-dimensional incisor angulations are compared in 40 patients using lateral radiographs and direct dental cast measurement using the Reflex Metrograph coupled to a computer.
(10) The Reflex Metrograph was used for a three-dimensional cast analysis, and an H.P.
(11) Reproducibility of the system in cephalometrics is assessed and compared with that obtained with the reflex metrograph.
(12) The Reflex Metrograph tends to undermeasure by 0.67% or by up to 2.00 mm per 300 mm and is very slightly less accurate in the vertical plane.
(13) The Reflex Metrograph is an optical plotter which is linked directly to a microcomputer and allows direct three-dimensional measurements of irregular shaped objects up to 300 mm maximum dimension without contacting the object.
(14) A retrospective investigation of the study casts of 23 subjects, treated by Fixed Appliances and the extraction of four premolars, using the Reflex Metrograph showed a general trend for a reduction in mean arch dimensions both during and following treatment.