What's the difference between nadir and zero?

Nadir


Definition:

  • (n.) That point of the heavens, or lower hemisphere, directly opposite the zenith; the inferior pole of the horizon; the point of the celestial sphere directly under the place where we stand.
  • (n.) The lowest point; the time of greatest depression.

Example Sentences:

  • (1) Following parturition, NONLAC cows averaged 4.0 d to negative EB nadir and 14.3 d to first ovulation.
  • (2) Seven days of constant light, however, reverses this diurnal variation such that plasma prolactin levels peak at 11:30 AM and reach a nadir at approximately 11:30 PM.
  • (3) Microsomal protein synthesis as measured by [3H]leucine incorporation was also depressed in a dose-dependent fashion; however, inhibition did not reach the nadir until day 4, 1 day after renal dysfunction was established.
  • (4) A trend to a phase-advance of cortisol nadir and melatonin peak was seen in the acutely ill depressed patients with abnormal DST, possibly indicating an involvement of the suprachiasmatic nuclei in the hypothalamus.
  • (5) The time-related incidence of these cells entities--the appearance of "dusk" and "bright" cells at 5 min, transitory domination of "bright" cells and the nadir of "dusk" cells at 20 min, sporadic recognition of "bright" cells, lack of "dusk" cells at 45 min and the absence of both cell forms at 180 min--displayed that LP-reactive response promptly appeared and rapidly ceased.
  • (6) In women, but not in men, there was a rise in the risk of falling from 45 years, peaking in the 55-59 year age group, and sinking to a nadir at ages 70-74.
  • (7) The binding is highest in the early morning and reaches a nadir in the late afternoon.
  • (8) Strict criteria for dose adjustments according to nadir counts were applied.
  • (9) One became azoospermic at week 16, while the other's total sperm counts continued declining and reached a nadir of 1.4 million by week 20.
  • (10) The WBC nadir occurred at a median of 10 days and the median time required for normalization of the WBC was 18 days.
  • (11) The main toxicity was haematological with delayed leucopenia and thrombopenia (nadir: week 6).
  • (12) Nadir values coincided with maximal toxic granulation of the neutrophils.
  • (13) The circadian rhythm observed in patients with intermittent claudication has early evening peaks and a nocturnal trough with a nadir occurring after midnight and before 0400.
  • (14) Portsmouth , still looking for their first home win under Tony Adams, dominated the first 25 minutes, when Nadir Belhadj was outstanding.
  • (15) Pre-treatment concentrations of P-FN were within the reference range and significantly higher than the nadir value (p less than 0.05).
  • (16) A model was constructed according to these two parameters that significantly describes ln (nadir WBC) (p = 0.001).
  • (17) Following spontaneous horizontal roving eye movement, both eyes deviated downward slowly from midposition, taking 1 to 2 seconds to reach the nadir.
  • (18) Griffiths replaced Nadir Ciftci for the start of the second half after a dismal first 45 minutes from the home side and Ronny Deila’s men continued to struggle, with Bitton sent off in the 67th minute after picking up his second yellow card.
  • (19) The second pulse was of slightly lower amplitude, reaching a maximum of 2.3 to 8.0 fold over the control value and 1.25 to 2.5 fold over the preceding nadir.
  • (20) The period from 2004-5 was the nadir: some American DJs even emigrated to Berlin, where the work prospects were better.

Zero


Definition:

  • (n.) A cipher; nothing; naught.
  • (n.) The point from which the graduation of a scale, as of a thermometer, commences.
  • (n.) Fig.: The lowest point; the point of exhaustion; as, his patience had nearly reached zero.

Example Sentences:

  • (1) The method is implemented with a digital non-causal (zero-phase shift) filter, based on the convolution with a finite impulse response, to make the computation time compatible with the use of low-cost microcomputers.
  • (2) 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.
  • (3) The final model has a probability 0.08 of underlying survival time being zero and, given non-zero survival time, takes the form of an exponential distribution with mean of 14.95 months.
  • (4) Robert Francis QC's official report in February on the Mid Staffordshire care scandal, in which an estimated 400 to 1,200 patients died unnecessarily at Stafford hospital between 2005 and 2008, called for the NHS to make "zero harm" its objective.
  • (5) Proper maintenance of body orientation was defined to be achieved if the net angular displacement of the head-and-trunk segment was zero during the flight phase of the long jump.
  • (6) Electromagnetic flow probes with an inner diameter of 2, 1.5 and 1 nm were used for studies on zero-line drifting and for calibration procedures in a series of rats and rabbits.
  • (7) The open probability is weakly voltage dependent, large at zero and positive potentials (cytoplasm minus SR lumen), and decreasing at negative potentials.
  • (8) Stepwise depolarizations from the holding potential (-67 to -83 mV) to a potential which varied from -10 to +63 mV resulted in an exponential decline of h from its initial level to a final, non-zero level.
  • (9) Average increases in nonvellus hair counts between months 4 and 12 were 216, 181, and 264 in the 2% minoxidil, 3% minoxidil, and placebo-to-3% minoxidil crossover groups, respectively, all highly significant differences from zero (p = 0.0001).
  • (10) For data sampled at a high rate (approximately 200 Hz) pupil velocity deviations from zero can simply be used, giving a satisfactory inaccuracy of about 5 ms. For data sampled at a low rate (less than 50 Hz), e.g.
  • (11) In 15 patients undergoing aortofemoral bypass, partial thromboplastin time (PTT) tests before and following intravenous administration of 75 U. per kilogram of heparin at zero, 30, 60, 90, and 120 minutes were determined for study of control of anticoagulant adequacy.
  • (12) As an index of inhomogeneous distribution of inspired air, the mean dilution number (the ratio of the first to zero moments) was calculated from each multibreath nitrogen washout during spontaneous breathing.
  • (13) Blood pressure was measured with a random-zero sphygmomanometer every 2 weeks of this 8-week trial.
  • (14) Pairwise correlation between an affected parent and child is zero: The disease is monogenic (no major expression gene).
  • (15) Where no fluoride was taken zero dmf scores were 41-69 per cent.
  • (16) He deploys a zero-risk strategy aimed at keeping his rightwing political base behind him, while convincing the public that he alone could lead the country in times of regional turmoil.
  • (17) Furthermore, the value of the flux ratio for this substance under conditions of zero electrochemical potential across the bowel wall unequivocally demonstrates active transport.
  • (18) As a result, more and more people are beginning to look towards Irish reunification as being a real possibility.” The overriding issue, however, in this most marginal constituency in Northern Ireland is the old binary, sectarian one: the zero-sum game of orange versus green.
  • (19) A reduction of tidal volume to zero or an increase by 30% led to a corresponding change of mean carotid artery pH level.
  • (20) The incidence of probable type B viral hepatitis in patients receiving factor IX concentrate was 13.8 percent (four of 29) versus zero percent (zero of 29) in control patients (difference not significant).