What's the difference between sector and sextant?

Sector


Definition:

  • (n.) A part of a circle comprehended between two radii and the included arc.
  • (n.) A mathematical instrument, consisting of two rulers connected at one end by a joint, each arm marked with several scales, as of equal parts, chords, sines, tangents, etc., one scale of each kind on each arm, and all on lines radiating from the common center of motion. The sector is used for plotting, etc., to any scale.
  • (n.) An astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector.

Example Sentences:

  • (1) Adding a layer of private pensions, it was thought, does not involve Government mechanisms and keeps the money in the private sector.
  • (2) Asthma is probably the commonest chronic disease in the United Kingdom, and its attendant morbidity extends outside the possible scope of the hospital sector.
  • (3) It comes as the museum is transforming itself in the wake of major cuts in its government funding and looking more towards private-sector funding, a move that has caused some unease about its future direction.
  • (4) of rats resulted in cell death and terminal degeneration in entorhinal, insular, and posterior cingulate cortices, and in the CA1, CA3 and dentate gyrus sectors of hippocampus.
  • (5) The Future Forum is a group of 57 health sector specialists chaired by the Professor Steve Field, the former chair of the Royal College of General Practitioners.
  • (6) The World Humanitarian Summit in May 2016 may be the most timely opportunity to make an honest appraisal of the effectiveness of the current system to deal with the sector’s “ new normal ” of finite resources and unlimited challenges.
  • (7) This is welcome news but it needs to be borne in mind that the manufacturing sector is still far from racing ahead and serious doubts remain about the strength of demand for manufactured goods over the medium term, particularly once stimulative measures start being withdrawn.
  • (8) "Medical professionals have perhaps been the least involved [of all sectors] in debates and discussions around abortion, and anti-choice groups have very effectively carried out a deliberate strategy of targeting and influencing health professionals.
  • (9) The FCx lesions themselves were shown to have no significant effect on DA utilisation in any CP sector.
  • (10) We present a comparison of the Canadian and American data on expenditures, identifying the sectors in which the experience of the two nations diverges most, and describing the processes of control.
  • (11) Alton Towers has a long record of safe operation and as we reopen, we are committed to ensuring that the public can again visit us with confidence.” A spokesman for the park said that said that X-Sector, the high-octane section of that park where the Smiler is based, would remain closed until further notice.
  • (12) And we will sell those assets that can be managed better by the private sector.
  • (13) "It will mean root-and-branch change for our banks if we are to deliver real change for Britain, if we are to rebuild our economy so it works for working people, and if we are to restore trust in a sector of our economy worth billions of pounds and hundreds of thousands of jobs to our country."
  • (14) Despite some high profile problems, the private sector share of community services has been expanding; its market share grew around 50% in the two years from 2010-11.
  • (15) Analysis of a transposable, element-induced o2 allele, o2-m20, revealed that sectors of endosperm cells contained the nuclear-localized O2 protein, indicating excision of the transposable element.
  • (16) After clinical examination and semen analysis, we studied 4100 patients by scrotal US with sector mechanical (7.5 MHz) probe with water bag and by transrectal US for prostatic vesicular region evaluation with 5-6.5 MHz linear probe (lately we used biplanar probe).
  • (17) We are going to see a sharp fall unless sellers hold the sector up by making aggressive offers.
  • (18) Thanks to the groundbreaking technology and heavy investment of a new breed of entertainment retailers offering access services, we are witnessing a revolution in the entertainment industry, benefitting consumers, creators and content owners alike.” ERA acts as a forum for the physical and digital retail sectors of music, and represents over 90% of the of the UK’s entertainment retail market.
  • (19) Burham's claim to be the continuity candidate, coupled with his past reputation as a Blairite, suggests a centrist leadership that would stay on course in terms of private sector involvement in public services, a crackdown on benefit claimants and a tougher stance on criminals.
  • (20) Generally, patients with anterior sector conditions showed improved performance with band-pass filters (not with ND filters).

Sextant


Definition:

  • (n.) The sixth part of a circle.
  • (n.) An instrument for measuring angular distances between objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's quadrant, but usually of metal, with a nicer graduation, telescopic sight, and its arc the sixth, and sometimes the third, part of a circle. See Quadrant.
  • (n.) The constellation Sextans.

Example Sentences:

  • (1) Treatment needs were determined by the worst periodontal score per sextant.
  • (2) Pathologic pockets of 6 mm or more were found in 1.3 and 0.3 sextants in the diabetic and control group subjects, respectively (P less than 0.001).
  • (3) Neither were any differences found in the periodontal condition related to the duration and control of diabetes, whereas diabetics with advanced retinopathy demonstrated more sextants with deep pockets.
  • (4) A randomized four-sextant treatment design was used.
  • (5) The value of digital rectal examination, computerized tomography, magnetic resonance imaging, prostate-specific antigen, transrectal ultrasonography, and systematic-sextant biopsy in the identification of lymph node-positive patients before radical prostatectomy was analyzed in 103 men who had pelvic lymph node dissection, CT had a sensitivity of only 7% and a specificity of 96% in detecting lymph nodes, whereas magnetic resonance imaging had a sensitivity of 50% and a specificity of 100%.
  • (6) Based on the Community Periodontal Index of Treatment Needs (CPITN) it can be stated that more than 90% of the adult population of 25 years and over needs oral hygiene education and scaling in one of more sextants (TN2).
  • (7) The mean number of missing sextants was also significantly higher in diabetics.
  • (8) Very few patients had 'healthy' periodontal sextants at the first visit; the most frequent CPITN category was 3.
  • (9) Any child with two or more sextants or teeth with CPITN code 3 or one sextant code 4 was taken for a radiographic and full clinical examination.
  • (10) The mean number of sextants requiring scaling was 0.6 per person at age 17 in Espoo as compared to 4.5 at 18.5 yr of age in Chiangmai.
  • (11) There are broad differences in the numbers of healthy sextants between developing countries and those which are highly industrialized.
  • (12) Straight rods, fusiforms and motile rods correlated negatively to the number of healthy sextants per subject.
  • (13) In general, females were healthier than males, had a significantly greater number of healthy sextants, less sextants with calculus and less sextants with deep pockets.
  • (14) Posterior sextants with CPITN Code 4 were more likely treated with surgery than sextants with CPITN Code 3.
  • (15) per sextant in the Spaniard population under 20 years of age.
  • (16) One maxillary sextant was splinted, while the other was unsplinted.
  • (17) Four pockets per patient, one in each posterior sextant, were chosen.
  • (18) Partial mouth random recording (2 upper and 1 lower or 1 upper and 2 lower sextants) was made by CPITN of 150 sextants, and at 6 sites around each tooth in each sextant for each index using a pressure-sensitive probe, with Newman tip and Williams markings, and a WHO 621 tip, probing pressure 0.25 N. Ranges of each index were compared with corresponding CPITN data.
  • (19) Surgical therapy was effective over all levels of disease severity and was the preferred form of therapy with respect to reduction of probing depth except for sextants exhibiting 4 to 5 mm pockets.
  • (20) While plaque and calculus were present in many sextants, there was little intense gingivitis and signs of advanced periodontal diseases were rarely present.