What's the difference between acceleration and retardation?

Acceleration


Definition:

  • (n.) The act of accelerating, or the state of being accelerated; increase of motion or action; as, a falling body moves toward the earth with an acceleration of velocity; -- opposed to retardation.

Example Sentences:

  • (1) This suggests that Mg2+ accelerated both reactions from a single class of site.
  • (2) By contrast, at 100 microM insulin concentration, both enhancers accelerated insulin proteolysis.
  • (3) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
  • (4) The light intensity profile for any desired cell can be examined in "real time", even during acceleration of the rotor.
  • (5) However, it markedly accelerated GTP-gamma-S-induced degranulation.
  • (6) Polypeptide factor isolated from vascular wall of the cattle ("vasonin") was shown to affect the immunogenesis and hemostasis, to stimulate kallikrein-kinin system and to accelerate processes of regeneration.
  • (7) After using the OK method to obtain a distance curve for height, we introduce a new method (VADK) to derive velocity and acceleration curves from the fitted distance curve.
  • (8) Mice inoculated with tumor cells in the 10 NTX group had an acceleration (18%) in the latency of tumor appearance and, 2 weeks after cell inoculation, 70% of the mice in this group had tumors, in contrast to 10% of the controls.
  • (9) "I saw my role, and continue to do so, as doing everything I can to accelerate the Lib Dems' journey from a party of protest to a party of government," he said.
  • (10) Compared with results obtained with unimmunized, control rabbits, accelerated lesion development was noted in the rabbits immunized with TpN83.
  • (11) The method described uses film DOT-I and DOT-II by Dupont, whereby the exposure of the step wedge takes place on a linear accelerator with a photo energy of 10 MeV.
  • (12) The authors are also upfront about what has not gone so well: "We were too slow to mobilise … we did not identify clear leadership or adequate resources for the actions … it is vital to accelerate the programme of civil service reform."
  • (13) DNase I microspheres were then introduced into the extracorporeal circuit which resulted in an acceleration of degradation of acid precipitable 125I-nDNA.
  • (14) Between-group responsivity differences suggest developmental retardation in term (38-42 weeks) SGA newborns, but the faster SGA latencies may reflect 'induced' acceleration in auditory neurophysiologic function.
  • (15) Pregnancy per se did not appear to accelerate SLE in patients receiving immunosuppressive therapy.
  • (16) Survival ranged from 2 to 20 M, with a median survival time of 6 M. Tolerance to the subsequent CT, normal tissue reaction to accelerated RT, and the theoretical advantage of accelerated RT over conventional RT for SCCL were evaluated.
  • (17) In late 1983 the Hagahai sought medical aid at a mission station, an event which accelerated their contact with the common epidemic diseases of the highlands.
  • (18) This study investigates the photoneutron field found in medical accelerator rooms with primary barriers constructed of metal slabs plus concrete.
  • (19) Proceptive behavior, according to Beach (1976), maintains and accelerates sexual interactions toward the end goal.
  • (20) There will be a "significantly accelerated reduction" in the structural element of the deficit over the parliament.

Retardation


Definition:

  • (n.) The act of retarding; hindrance; the act of delaying; as, the retardation of the motion of a ship; -- opposed to acceleration.
  • (n.) That which retards; an obstacle; an obstruction.
  • (n.) The keeping back of an approaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; -- differing from suspension by resolving upwards instead of downwards.
  • (n.) The extent to which anything is retarded; the amount of retarding or delay.

Example Sentences:

  • (1) It is followed by rapid neurobehavioral deterioration in late infancy or early childhood, a developmental arrest, plateauing, and then either a course of retarded development or continued deterioration.
  • (2) Low birth weight, short stature, and mental retardation were common features in the four known patients with r(8).
  • (3) It was found that preterm infants (delivered before 38 weeks of gestation) had nine times the early neonatal mortality of term infants, irrespective of growth retardation patterns.
  • (4) Instead of later renal failure and, of course, mental retardation, it was the histological features of the fetus eyes which permit to diagnose and exhibit both congenital cataract and irido-corneal angle dysgenesis.
  • (5) In the interim, sonographic studies during pregnancy in women at risk for AIDS may be helpful in identifying fetal intrauterine growth retardation and may help raise our level of suspicion for congenital AIDS.
  • (6) Three types of responses were observed: group A, no inhibition of gastric acid secretion occurred in 17 (40%) ulcer patients and in three (18%) controls (p less than 0.05); group B, inhibition of gastric acidity occurred in seven (16%) ulcer patients and in 12 (71%) controls (p less than 0.05), and group C, retarded gastric acid inhibition occurred in 19 (44%) duodenal ulcer patients and in 2 (12%) controls (p less than 0.05).
  • (7) This new way of thinking is reflected in the 1992 AAMR definition of what mental retardation is (Luckasson et al., 1992).
  • (8) Confirmation of the striking correlation between increased urinary ammonia and lowered neonatal ponderal index may afford a simple test for the identification of nutrient-related growth retardation.
  • (9) Governmental officials as well as medical scientists in Taiwan have worked hard in recent years to develop and to implement various measures, such as prenatal diagnosis and neonatal screening, to lower the incidence of hereditary diseases and mental retardation in the population.
  • (10) A lower than normal percentage of REM sleep in these patients was consistent with their retarded intellectual development, which supports current thinking that REM sleep may be a sensitive index of brain function integrity.
  • (11) Bone age has been analyzed mixed-longitudinally in a subsample of 370 patients (660 observations) and showed a slight retardation at all ages between 6 and 13 yr. Development of pubic hair of 91 subjects analyzed cross-sectionally was definitely retarded when compared to adequate reference data.
  • (12) The results also suggest that both alkali metals most probably have been delivered to the suckling pups and some of their toxic effect was retarded.
  • (13) However, patients can be taught how to retard the onset of wrinkles by avoiding unprotected sun exposure, unnecessary facial movements, and certain sleeping positions.
  • (14) Between-group responsivity differences suggest developmental retardation in term (38-42 weeks) SGA newborns, but the faster SGA latencies may reflect 'induced' acceleration in auditory neurophysiologic function.
  • (15) Fifty-one severely retarded adults were taught a difficult visual discrimination in an assembly task by one of three training techniques: (a) adding and reducing large cue differences on the relevant-shape dimension; (b) adding and fading a redundant-color dimension; or (c) a combination of the two techniques.
  • (16) Thus, the patient with asymptomatic bacteriuria and a positive FA test is at greater risk of delivering an intrauterine growth-retarded infant.
  • (17) Diffusional anisotropy of water protons, induced by nonrandom, directional barriers which hinder or retard water motion, is measurable by MRI.
  • (18) Partial duplication of the proximal part of the long arm of chromosome 5, on the other hand, is associated mainly with musculoskeletal abnormalities including muscle hypotrophy and hypotonia, scoliosis, lordosis, pectus carinatum, cubitus valgus, and genu valgum, in addition to psychomotor retardation.
  • (19) In contrast, the same concentration of isopropanol produced narcosis in the dams, retarded body-weight gain and reduced the feed intake.
  • (20) A lysosomal membrane labilizer, vitamin A, exacerbated the cartilage pathology, whereas a stabilizer, cortisone, retarded it.